Initial commit: SimVision tvOS streaming app

Features:
- VOD library with movie grouping and version detection
- TV show library with season/episode organization
- TMDB integration for trending shows and recently aired episodes
- Recent releases section with TMDB release date sorting
- Watch history tracking with continue watching
- Playlist caching (12-hour TTL) for offline support
- M3U playlist parsing with XStream API support
- Authentication with credential storage

Technical:
- SwiftUI for tvOS
- Actor-based services for thread safety
- Persistent caching for playlists, TMDB data, and watch history
- KSPlayer integration for video playback

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

KSPlayer-main/Sources/KSPlayer/AVPlayer/KSAVPlayer.swift

@@ -0,0 +1,592 @@
+import AVFoundation
+import AVKit
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+
+public typealias UIImage = NSImage
+#endif
+import Combine
+import CoreGraphics
+
+public final class KSAVPlayerView: UIView {
+    public let player = AVQueuePlayer()
+    override public init(frame: CGRect) {
+        super.init(frame: frame)
+        #if !canImport(UIKit)
+        layer = AVPlayerLayer()
+        #endif
+        playerLayer.player = player
+        player.automaticallyWaitsToMinimizeStalling = false
+    }
+
+    @available(*, unavailable)
+    public required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override public var contentMode: UIViewContentMode {
+        get {
+            switch playerLayer.videoGravity {
+            case .resize:
+                return .scaleToFill
+            case .resizeAspect:
+                return .scaleAspectFit
+            case .resizeAspectFill:
+                return .scaleAspectFill
+            default:
+                return .scaleAspectFit
+            }
+        }
+        set {
+            switch newValue {
+            case .scaleToFill:
+                playerLayer.videoGravity = .resize
+            case .scaleAspectFit:
+                playerLayer.videoGravity = .resizeAspect
+            case .scaleAspectFill:
+                playerLayer.videoGravity = .resizeAspectFill
+            case .center:
+                playerLayer.videoGravity = .resizeAspect
+            default:
+                break
+            }
+        }
+    }
+
+    #if canImport(UIKit)
+    override public class var layerClass: AnyClass { AVPlayerLayer.self }
+    #endif
+    fileprivate var playerLayer: AVPlayerLayer {
+        // swiftlint:disable force_cast
+        layer as! AVPlayerLayer
+        // swiftlint:enable force_cast
+    }
+}
+
+@MainActor
+public class KSAVPlayer {
+    private var cancellable: AnyCancellable?
+    private var options: KSOptions {
+        didSet {
+            player.currentItem?.preferredForwardBufferDuration = options.preferredForwardBufferDuration
+            cancellable = options.$preferredForwardBufferDuration.sink { [weak self] newValue in
+                self?.player.currentItem?.preferredForwardBufferDuration = newValue
+            }
+        }
+    }
+
+    private let playerView = KSAVPlayerView()
+    private var urlAsset: AVURLAsset
+    private var shouldSeekTo = TimeInterval(0)
+    private var playerLooper: AVPlayerLooper?
+    private var statusObservation: NSKeyValueObservation?
+    private var loadedTimeRangesObservation: NSKeyValueObservation?
+    private var bufferEmptyObservation: NSKeyValueObservation?
+    private var likelyToKeepUpObservation: NSKeyValueObservation?
+    private var bufferFullObservation: NSKeyValueObservation?
+    private var itemObservation: NSKeyValueObservation?
+    private var loopCountObservation: NSKeyValueObservation?
+    private var loopStatusObservation: NSKeyValueObservation?
+    private var mediaPlayerTracks = [AVMediaPlayerTrack]()
+    private var error: Error? {
+        didSet {
+            if let error {
+                delegate?.finish(player: self, error: error)
+            }
+        }
+    }
+
+    private lazy var _pipController: Any? = {
+        if #available(tvOS 14.0, *) {
+            let pip = KSPictureInPictureController(playerLayer: playerView.playerLayer)
+            return pip
+        } else {
+            return nil
+        }
+    }()
+
+    @available(tvOS 14.0, *)
+    public var pipController: KSPictureInPictureController? {
+        _pipController as? KSPictureInPictureController
+    }
+
+    public var naturalSize: CGSize = .zero
+    public let dynamicInfo: DynamicInfo? = nil
+    @available(macOS 12.0, iOS 15.0, tvOS 15.0, *)
+    public var playbackCoordinator: AVPlaybackCoordinator {
+        playerView.player.playbackCoordinator
+    }
+
+    public private(set) var bufferingProgress = 0 {
+        didSet {
+            delegate?.changeBuffering(player: self, progress: bufferingProgress)
+        }
+    }
+
+    public weak var delegate: MediaPlayerDelegate?
+    public private(set) var duration: TimeInterval = 0
+    public private(set) var fileSize: Double = 0
+    public private(set) var playableTime: TimeInterval = 0
+    public let chapters: [Chapter] = []
+    public var playbackRate: Float = 1 {
+        didSet {
+            if playbackState == .playing {
+                player.rate = playbackRate
+            }
+        }
+    }
+
+    public var playbackVolume: Float = 1.0 {
+        didSet {
+            if player.volume != playbackVolume {
+                player.volume = playbackVolume
+            }
+        }
+    }
+
+    public private(set) var loadState = MediaLoadState.idle {
+        didSet {
+            if loadState != oldValue {
+                playOrPause()
+                if loadState == .loading || loadState == .idle {
+                    bufferingProgress = 0
+                }
+            }
+        }
+    }
+
+    public private(set) var playbackState = MediaPlaybackState.idle {
+        didSet {
+            if playbackState != oldValue {
+                playOrPause()
+                if playbackState == .finished {
+                    delegate?.finish(player: self, error: nil)
+                }
+            }
+        }
+    }
+
+    public private(set) var isReadyToPlay = false {
+        didSet {
+            if isReadyToPlay != oldValue {
+                if isReadyToPlay {
+                    options.readyTime = CACurrentMediaTime()
+                    delegate?.readyToPlay(player: self)
+                }
+            }
+        }
+    }
+
+    #if os(xrOS)
+    public var allowsExternalPlayback = false
+    public var usesExternalPlaybackWhileExternalScreenIsActive = false
+    public let isExternalPlaybackActive = false
+    #else
+    public var allowsExternalPlayback: Bool {
+        get {
+            player.allowsExternalPlayback
+        }
+        set {
+            player.allowsExternalPlayback = newValue
+        }
+    }
+
+    #if os(macOS)
+    public var usesExternalPlaybackWhileExternalScreenIsActive = false
+    #else
+    public var usesExternalPlaybackWhileExternalScreenIsActive: Bool {
+        get {
+            player.usesExternalPlaybackWhileExternalScreenIsActive
+        }
+        set {
+            player.usesExternalPlaybackWhileExternalScreenIsActive = newValue
+        }
+    }
+    #endif
+
+    public var isExternalPlaybackActive: Bool {
+        player.isExternalPlaybackActive
+    }
+    #endif
+
+    public required init(url: URL, options: KSOptions) {
+        KSOptions.setAudioSession()
+        urlAsset = AVURLAsset(url: url, options: options.avOptions)
+        self.options = options
+        itemObservation = player.observe(\.currentItem) { [weak self] player, _ in
+            guard let self else { return }
+            self.observer(playerItem: player.currentItem)
+        }
+    }
+}
+
+extension KSAVPlayer {
+    public var player: AVQueuePlayer { playerView.player }
+    public var playerLayer: AVPlayerLayer { playerView.playerLayer }
+    @objc private func moviePlayDidEnd(notification _: Notification) {
+        if !options.isLoopPlay {
+            playbackState = .finished
+        }
+    }
+
+    @objc private func playerItemFailedToPlayToEndTime(notification: Notification) {
+        var playError: Error?
+        if let userInfo = notification.userInfo {
+            if let error = userInfo["error"] as? Error {
+                playError = error
+            } else if let error = userInfo[AVPlayerItemFailedToPlayToEndTimeErrorKey] as? NSError {
+                playError = error
+            } else if let errorCode = (userInfo["error"] as? NSNumber)?.intValue {
+                playError = NSError(domain: "AVMoviePlayer", code: errorCode, userInfo: nil)
+            }
+        }
+        delegate?.finish(player: self, error: playError)
+    }
+
+    private func updateStatus(item: AVPlayerItem) {
+        if item.status == .readyToPlay {
+            options.findTime = CACurrentMediaTime()
+            mediaPlayerTracks = item.tracks.map {
+                AVMediaPlayerTrack(track: $0)
+            }
+            let playableVideo = mediaPlayerTracks.first {
+                $0.mediaType == .video && $0.isPlayable
+            }
+            if let playableVideo {
+                naturalSize = playableVideo.naturalSize
+            } else {
+                error = NSError(errorCode: .videoTracksUnplayable)
+                return
+            }
+            // 默认选择第一个声道
+            item.tracks.filter { $0.assetTrack?.mediaType.rawValue == AVMediaType.audio.rawValue }.dropFirst().forEach { $0.isEnabled = false }
+            duration = item.duration.seconds
+            let estimatedDataRates = item.tracks.compactMap { $0.assetTrack?.estimatedDataRate }
+            fileSize = Double(estimatedDataRates.reduce(0, +)) * duration / 8
+            isReadyToPlay = true
+        } else if item.status == .failed {
+            error = item.error
+        }
+    }
+
+    private func updatePlayableDuration(item: AVPlayerItem) {
+        let first = item.loadedTimeRanges.first { CMTimeRangeContainsTime($0.timeRangeValue, time: item.currentTime()) }
+        if let first {
+            playableTime = first.timeRangeValue.end.seconds
+            guard playableTime > 0 else { return }
+            let loadedTime = playableTime - currentPlaybackTime
+            guard loadedTime > 0 else { return }
+            bufferingProgress = Int(min(loadedTime * 100 / item.preferredForwardBufferDuration, 100))
+            if bufferingProgress >= 100 {
+                loadState = .playable
+            }
+        }
+    }
+
+    private func playOrPause() {
+        if playbackState == .playing {
+            if loadState == .playable {
+                player.play()
+                player.rate = playbackRate
+            }
+        } else {
+            player.pause()
+        }
+        delegate?.changeLoadState(player: self)
+    }
+
+    private func replaceCurrentItem(playerItem: AVPlayerItem?) {
+        player.currentItem?.cancelPendingSeeks()
+        if options.isLoopPlay {
+            loopCountObservation?.invalidate()
+            loopStatusObservation?.invalidate()
+            playerLooper?.disableLooping()
+            guard let playerItem else {
+                playerLooper = nil
+                return
+            }
+            playerLooper = AVPlayerLooper(player: player, templateItem: playerItem)
+            loopCountObservation = playerLooper?.observe(\.loopCount) { [weak self] playerLooper, _ in
+                guard let self else { return }
+                self.delegate?.playBack(player: self, loopCount: playerLooper.loopCount)
+            }
+            loopStatusObservation = playerLooper?.observe(\.status) { [weak self] playerLooper, _ in
+                guard let self else { return }
+                if playerLooper.status == .failed {
+                    self.error = playerLooper.error
+                }
+            }
+        } else {
+            player.replaceCurrentItem(with: playerItem)
+        }
+    }
+
+    private func observer(playerItem: AVPlayerItem?) {
+        NotificationCenter.default.removeObserver(self, name: .AVPlayerItemDidPlayToEndTime, object: playerItem)
+        NotificationCenter.default.removeObserver(self, name: .AVPlayerItemFailedToPlayToEndTime, object: playerItem)
+        statusObservation?.invalidate()
+        loadedTimeRangesObservation?.invalidate()
+        bufferEmptyObservation?.invalidate()
+        likelyToKeepUpObservation?.invalidate()
+        bufferFullObservation?.invalidate()
+        guard let playerItem else { return }
+        NotificationCenter.default.addObserver(self, selector: #selector(moviePlayDidEnd), name: .AVPlayerItemDidPlayToEndTime, object: playerItem)
+        NotificationCenter.default.addObserver(self, selector: #selector(playerItemFailedToPlayToEndTime), name: .AVPlayerItemFailedToPlayToEndTime, object: playerItem)
+        statusObservation = playerItem.observe(\.status) { [weak self] item, _ in
+            guard let self else { return }
+            self.updateStatus(item: item)
+        }
+        loadedTimeRangesObservation = playerItem.observe(\.loadedTimeRanges) { [weak self] item, _ in
+            guard let self else { return }
+            // 计算缓冲进度
+            self.updatePlayableDuration(item: item)
+        }
+
+        let changeHandler: (AVPlayerItem, NSKeyValueObservedChange<Bool>) -> Void = { [weak self] _, _ in
+            guard let self else { return }
+            // 在主线程更新进度
+            if playerItem.isPlaybackBufferEmpty {
+                self.loadState = .loading
+            } else if playerItem.isPlaybackLikelyToKeepUp || playerItem.isPlaybackBufferFull {
+                self.loadState = .playable
+            }
+        }
+        bufferEmptyObservation = playerItem.observe(\.isPlaybackBufferEmpty, changeHandler: changeHandler)
+        likelyToKeepUpObservation = playerItem.observe(\.isPlaybackLikelyToKeepUp, changeHandler: changeHandler)
+        bufferFullObservation = playerItem.observe(\.isPlaybackBufferFull, changeHandler: changeHandler)
+    }
+}
+
+extension KSAVPlayer: MediaPlayerProtocol {
+    public var subtitleDataSouce: SubtitleDataSouce? { nil }
+    public var isPlaying: Bool { player.rate > 0 ? true : playbackState == .playing }
+    public var view: UIView? { playerView }
+    public var currentPlaybackTime: TimeInterval {
+        get {
+            if shouldSeekTo > 0 {
+                return TimeInterval(shouldSeekTo)
+            } else {
+                // 防止卡主
+                return isReadyToPlay ? player.currentTime().seconds : 0
+            }
+        }
+        set {
+            seek(time: newValue) { _ in
+            }
+        }
+    }
+
+    public var numberOfBytesTransferred: Int64 {
+        guard let playerItem = player.currentItem, let accesslog = playerItem.accessLog(), let event = accesslog.events.first else {
+            return 0
+        }
+        return event.numberOfBytesTransferred
+    }
+
+    public func thumbnailImageAtCurrentTime() async -> CGImage? {
+        guard let playerItem = player.currentItem, isReadyToPlay else {
+            return nil
+        }
+        return await withCheckedContinuation { continuation in
+            urlAsset.thumbnailImage(currentTime: playerItem.currentTime()) { result in
+                continuation.resume(returning: result)
+            }
+        }
+    }
+
+    public func seek(time: TimeInterval, completion: @escaping ((Bool) -> Void)) {
+        let time = max(time, 0)
+        shouldSeekTo = time
+        playbackState = .seeking
+        runOnMainThread { [weak self] in
+            self?.bufferingProgress = 0
+        }
+        let tolerance: CMTime = options.isAccurateSeek ? .zero : .positiveInfinity
+        player.seek(to: CMTime(seconds: time), toleranceBefore: tolerance, toleranceAfter: tolerance) {
+            [weak self] finished in
+            guard let self else { return }
+            self.shouldSeekTo = 0
+            completion(finished)
+        }
+    }
+
+    public func prepareToPlay() {
+        KSLog("prepareToPlay \(self)")
+        options.prepareTime = CACurrentMediaTime()
+        runOnMainThread { [weak self] in
+            guard let self else { return }
+            self.bufferingProgress = 0
+            let playerItem = AVPlayerItem(asset: self.urlAsset)
+            self.options.openTime = CACurrentMediaTime()
+            self.replaceCurrentItem(playerItem: playerItem)
+            self.player.actionAtItemEnd = .pause
+            self.player.volume = self.playbackVolume
+        }
+    }
+
+    public func play() {
+        KSLog("play \(self)")
+        playbackState = .playing
+    }
+
+    public func pause() {
+        KSLog("pause \(self)")
+        playbackState = .paused
+    }
+
+    public func shutdown() {
+        KSLog("shutdown \(self)")
+        isReadyToPlay = false
+        playbackState = .stopped
+        loadState = .idle
+        urlAsset.cancelLoading()
+        replaceCurrentItem(playerItem: nil)
+    }
+
+    public func replace(url: URL, options: KSOptions) {
+        KSLog("replaceUrl \(self)")
+        shutdown()
+        urlAsset = AVURLAsset(url: url, options: options.avOptions)
+        self.options = options
+    }
+
+    public var contentMode: UIViewContentMode {
+        get {
+            playerView.contentMode
+        }
+        set {
+            playerView.contentMode = newValue
+        }
+    }
+
+    public func enterBackground() {
+        playerView.playerLayer.player = nil
+    }
+
+    public func enterForeground() {
+        playerView.playerLayer.player = playerView.player
+    }
+
+    public var seekable: Bool {
+        !(player.currentItem?.seekableTimeRanges.isEmpty ?? true)
+    }
+
+    public var isMuted: Bool {
+        get {
+            player.isMuted
+        }
+        set {
+            player.isMuted = newValue
+        }
+    }
+
+    public func tracks(mediaType: AVFoundation.AVMediaType) -> [MediaPlayerTrack] {
+        player.currentItem?.tracks.filter { $0.assetTrack?.mediaType == mediaType }.map { AVMediaPlayerTrack(track: $0) } ?? []
+    }
+
+    public func select(track: some MediaPlayerTrack) {
+        player.currentItem?.tracks.filter { $0.assetTrack?.mediaType == track.mediaType }.forEach { $0.isEnabled = false }
+        track.isEnabled = true
+    }
+}
+
+extension AVFoundation.AVMediaType {
+    var mediaCharacteristic: AVMediaCharacteristic {
+        switch self {
+        case .video:
+            return .visual
+        case .audio:
+            return .audible
+        case .subtitle:
+            return .legible
+        default:
+            return .easyToRead
+        }
+    }
+}
+
+extension AVAssetTrack {
+    func toMediaPlayerTrack() {}
+}
+
+class AVMediaPlayerTrack: MediaPlayerTrack {
+    let formatDescription: CMFormatDescription?
+    let description: String
+    private let track: AVPlayerItemTrack
+    var nominalFrameRate: Float
+    let trackID: Int32
+    let rotation: Int16 = 0
+    let bitDepth: Int32
+    let bitRate: Int64
+    let name: String
+    let languageCode: String?
+    let mediaType: AVFoundation.AVMediaType
+    let isImageSubtitle = false
+    var dovi: DOVIDecoderConfigurationRecord?
+    let fieldOrder: FFmpegFieldOrder = .unknown
+    var isPlayable: Bool
+    @MainActor
+    var isEnabled: Bool {
+        get {
+            track.isEnabled
+        }
+        set {
+            track.isEnabled = newValue
+        }
+    }
+
+    init(track: AVPlayerItemTrack) {
+        self.track = track
+        trackID = track.assetTrack?.trackID ?? 0
+        mediaType = track.assetTrack?.mediaType ?? .video
+        name = track.assetTrack?.languageCode ?? ""
+        languageCode = track.assetTrack?.languageCode
+        nominalFrameRate = track.assetTrack?.nominalFrameRate ?? 24.0
+        bitRate = Int64(track.assetTrack?.estimatedDataRate ?? 0)
+        #if os(xrOS)
+        isPlayable = false
+        #else
+        isPlayable = track.assetTrack?.isPlayable ?? false
+        #endif
+        // swiftlint:disable force_cast
+        if let first = track.assetTrack?.formatDescriptions.first {
+            formatDescription = first as! CMFormatDescription
+        } else {
+            formatDescription = nil
+        }
+        bitDepth = formatDescription?.bitDepth ?? 0
+        // swiftlint:enable force_cast
+        description = (formatDescription?.mediaSubType ?? .boxed).rawValue.string
+        #if os(xrOS)
+        Task {
+            isPlayable = await (try? track.assetTrack?.load(.isPlayable)) ?? false
+        }
+        #endif
+    }
+
+    func load() {}
+}
+
+public extension AVAsset {
+    func createImageGenerator() -> AVAssetImageGenerator {
+        let imageGenerator = AVAssetImageGenerator(asset: self)
+        imageGenerator.requestedTimeToleranceBefore = .zero
+        imageGenerator.requestedTimeToleranceAfter = .zero
+        return imageGenerator
+    }
+
+    func thumbnailImage(currentTime: CMTime, handler: @escaping (CGImage?) -> Void) {
+        let imageGenerator = createImageGenerator()
+        imageGenerator.requestedTimeToleranceBefore = .zero
+        imageGenerator.requestedTimeToleranceAfter = .zero
+        imageGenerator.generateCGImagesAsynchronously(forTimes: [NSValue(time: currentTime)]) { _, cgImage, _, _, _ in
+            if let cgImage {
+                handler(cgImage)
+            } else {
+                handler(nil)
+            }
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/AVPlayer/KSOptions.swift

@@ -0,0 +1,679 @@
+//
+//  KSOptions.swift
+//  KSPlayer-tvOS
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import AVFoundation
+#if os(tvOS) || os(xrOS)
+import DisplayCriteria
+#endif
+import OSLog
+
+#if canImport(UIKit)
+import UIKit
+#endif
+open class KSOptions {
+    /// 最低缓存视频时间
+    @Published
+    public var preferredForwardBufferDuration = KSOptions.preferredForwardBufferDuration
+    /// 最大缓存视频时间
+    public var maxBufferDuration = KSOptions.maxBufferDuration
+    /// 是否开启秒开
+    public var isSecondOpen = KSOptions.isSecondOpen
+    /// 开启精确seek
+    public var isAccurateSeek = KSOptions.isAccurateSeek
+    /// Applies to short videos only
+    public var isLoopPlay = KSOptions.isLoopPlay
+    /// seek完是否自动播放
+    public var isSeekedAutoPlay = KSOptions.isSeekedAutoPlay
+    /*
+     AVSEEK_FLAG_BACKWARD: 1
+     AVSEEK_FLAG_BYTE: 2
+     AVSEEK_FLAG_ANY: 4
+     AVSEEK_FLAG_FRAME: 8
+     */
+    public var seekFlags = Int32(1)
+    // ffmpeg only cache http
+    // 这个开关不能用，因为ff_tempfile: Cannot open temporary file
+    public var cache = false
+    //  record stream
+    public var outputURL: URL?
+    public var avOptions = [String: Any]()
+    public var formatContextOptions = [String: Any]()
+    public var decoderOptions = [String: Any]()
+    public var probesize: Int64?
+    public var maxAnalyzeDuration: Int64?
+    public var lowres = UInt8(0)
+    public var nobuffer = false
+    public var codecLowDelay = false
+    public var startPlayTime: TimeInterval = 0
+    public var startPlayRate: Float = 1.0
+    public var registerRemoteControll: Bool = true // 默认支持来自系统控制中心的控制
+    public var referer: String? {
+        didSet {
+            if let referer {
+                formatContextOptions["referer"] = "Referer: \(referer)"
+            } else {
+                formatContextOptions["referer"] = nil
+            }
+        }
+    }
+
+    public var userAgent: String? = "KSPlayer" {
+        didSet {
+            formatContextOptions["user_agent"] = userAgent
+        }
+    }
+
+    // audio
+    public var audioFilters = [String]()
+    public var syncDecodeAudio = false
+    // sutile
+    public var autoSelectEmbedSubtitle = true
+    public var isSeekImageSubtitle = false
+    // video
+    public var display = DisplayEnum.plane
+    public var videoDelay = 0.0 // s
+    public var autoDeInterlace = false
+    public var autoRotate = true
+    public var destinationDynamicRange: DynamicRange?
+    public var videoAdaptable = true
+    public var videoFilters = [String]()
+    public var syncDecodeVideo = false
+    public var hardwareDecode = KSOptions.hardwareDecode
+    public var asynchronousDecompression = KSOptions.asynchronousDecompression
+    public var videoDisable = false
+    public var canStartPictureInPictureAutomaticallyFromInline = KSOptions.canStartPictureInPictureAutomaticallyFromInline
+    public var automaticWindowResize = true
+    @Published
+    public var videoInterlacingType: VideoInterlacingType?
+    private var videoClockDelayCount = 0
+
+    public internal(set) var formatName = ""
+    public internal(set) var prepareTime = 0.0
+    public internal(set) var dnsStartTime = 0.0
+    public internal(set) var tcpStartTime = 0.0
+    public internal(set) var tcpConnectedTime = 0.0
+    public internal(set) var openTime = 0.0
+    public internal(set) var findTime = 0.0
+    public internal(set) var readyTime = 0.0
+    public internal(set) var readAudioTime = 0.0
+    public internal(set) var readVideoTime = 0.0
+    public internal(set) var decodeAudioTime = 0.0
+    public internal(set) var decodeVideoTime = 0.0
+    public init() {
+        formatContextOptions["user_agent"] = userAgent
+        // 参数的配置可以参考protocols.texi 和 http.c
+        // 这个一定要，不然有的流就会判断不准FieldOrder
+        formatContextOptions["scan_all_pmts"] = 1
+        // ts直播流需要加这个才能一直直播下去，不然播放一小段就会结束了。
+        formatContextOptions["reconnect"] = 1
+        formatContextOptions["reconnect_streamed"] = 1
+        // 这个是用来开启http的链接复用（keep-alive）。vlc默认是打开的，所以这边也默认打开。
+        // 开启这个，百度网盘的视频链接无法播放
+        // formatContextOptions["multiple_requests"] = 1
+        // 下面是用来处理秒开的参数，有需要的自己打开。默认不开，不然在播放某些特殊的ts直播流会频繁卡顿。
+//        formatContextOptions["auto_convert"] = 0
+//        formatContextOptions["fps_probe_size"] = 3
+//        formatContextOptions["rw_timeout"] = 10_000_000
+//        formatContextOptions["max_analyze_duration"] = 300 * 1000
+        // 默认情况下允许所有协议，只有嵌套协议才需要指定这个协议子集，例如m3u8里面有http。
+//        formatContextOptions["protocol_whitelist"] = "file,http,https,tcp,tls,crypto,async,cache,data,httpproxy"
+        // 开启这个，纯ipv6地址会无法播放。并且有些视频结束了，但还会一直尝试重连。所以这个值默认不设置
+//        formatContextOptions["reconnect_at_eof"] = 1
+        // 开启这个，会导致tcp Failed to resolve hostname 还会一直重试
+//        formatContextOptions["reconnect_on_network_error"] = 1
+        // There is total different meaning for 'listen_timeout' option in rtmp
+        // set 'listen_timeout' = -1 for rtmp、rtsp
+//        formatContextOptions["listen_timeout"] = 3
+        decoderOptions["threads"] = "auto"
+        decoderOptions["refcounted_frames"] = "1"
+    }
+
+    /**
+     you can add http-header or other options which mentions in https://developer.apple.com/reference/avfoundation/avurlasset/initialization_options
+
+     to add http-header init options like this
+     ```
+     options.appendHeader(["Referer":"https:www.xxx.com"])
+     ```
+     */
+    public func appendHeader(_ header: [String: String]) {
+        var oldValue = avOptions["AVURLAssetHTTPHeaderFieldsKey"] as? [String: String] ?? [
+            String: String
+        ]()
+        oldValue.merge(header) { _, new in new }
+        avOptions["AVURLAssetHTTPHeaderFieldsKey"] = oldValue
+        var str = formatContextOptions["headers"] as? String ?? ""
+        for (key, value) in header {
+            str.append("\(key):\(value)\r\n")
+        }
+        formatContextOptions["headers"] = str
+    }
+
+    public func setCookie(_ cookies: [HTTPCookie]) {
+        avOptions[AVURLAssetHTTPCookiesKey] = cookies
+        let cookieStr = cookies.map { cookie in "\(cookie.name)=\(cookie.value)" }.joined(separator: "; ")
+        appendHeader(["Cookie": cookieStr])
+    }
+
+    // 缓冲算法函数
+    open func playable(capacitys: [CapacityProtocol], isFirst: Bool, isSeek: Bool) -> LoadingState {
+        let packetCount = capacitys.map(\.packetCount).min() ?? 0
+        let frameCount = capacitys.map(\.frameCount).min() ?? 0
+        let isEndOfFile = capacitys.allSatisfy(\.isEndOfFile)
+        let loadedTime = capacitys.map(\.loadedTime).min() ?? 0
+        let progress = preferredForwardBufferDuration == 0 ? 100 : loadedTime * 100.0 / preferredForwardBufferDuration
+        let isPlayable = capacitys.allSatisfy { capacity in
+            if capacity.isEndOfFile && capacity.packetCount == 0 {
+                return true
+            }
+            guard capacity.frameCount >= 2 else {
+                return false
+            }
+            if capacity.isEndOfFile {
+                return true
+            }
+            if (syncDecodeVideo && capacity.mediaType == .video) || (syncDecodeAudio && capacity.mediaType == .audio) {
+                return true
+            }
+            if isFirst || isSeek {
+                // 让纯音频能更快的打开
+                if capacity.mediaType == .audio || isSecondOpen {
+                    if isFirst {
+                        return true
+                    } else {
+                        return capacity.loadedTime >= self.preferredForwardBufferDuration / 2
+                    }
+                }
+            }
+            return capacity.loadedTime >= self.preferredForwardBufferDuration
+        }
+        return LoadingState(loadedTime: loadedTime, progress: progress, packetCount: packetCount,
+                            frameCount: frameCount, isEndOfFile: isEndOfFile, isPlayable: isPlayable,
+                            isFirst: isFirst, isSeek: isSeek)
+    }
+
+    open func adaptable(state: VideoAdaptationState?) -> (Int64, Int64)? {
+        guard let state, let last = state.bitRateStates.last, CACurrentMediaTime() - last.time > maxBufferDuration / 2, let index = state.bitRates.firstIndex(of: last.bitRate) else {
+            return nil
+        }
+        let isUp = state.loadedCount > Int(Double(state.fps) * maxBufferDuration / 2)
+        if isUp != state.isPlayable {
+            return nil
+        }
+        if isUp {
+            if index < state.bitRates.endIndex - 1 {
+                return (last.bitRate, state.bitRates[index + 1])
+            }
+        } else {
+            if index > state.bitRates.startIndex {
+                return (last.bitRate, state.bitRates[index - 1])
+            }
+        }
+        return nil
+    }
+
+    ///  wanted video stream index, or nil for automatic selection
+    /// - Parameter : video track
+    /// - Returns: The index of the track
+    open func wantedVideo(tracks _: [MediaPlayerTrack]) -> Int? {
+        nil
+    }
+
+    /// wanted audio stream index, or nil for automatic selection
+    /// - Parameter :  audio track
+    /// - Returns: The index of the track
+    open func wantedAudio(tracks _: [MediaPlayerTrack]) -> Int? {
+        nil
+    }
+
+    open func videoFrameMaxCount(fps _: Float, naturalSize _: CGSize, isLive: Bool) -> UInt8 {
+        isLive ? 4 : 16
+    }
+
+    open func audioFrameMaxCount(fps: Float, channelCount: Int) -> UInt8 {
+        let count = (Int(fps) * channelCount) >> 2
+        if count >= UInt8.max {
+            return UInt8.max
+        } else {
+            return UInt8(count)
+        }
+    }
+
+    /// customize dar
+    /// - Parameters:
+    ///   - sar: SAR(Sample Aspect Ratio)
+    ///   - dar: PAR(Pixel Aspect Ratio)
+    /// - Returns: DAR(Display Aspect Ratio)
+    open func customizeDar(sar _: CGSize, par _: CGSize) -> CGSize? {
+        nil
+    }
+
+    // 虽然只有iOS才支持PIP。但是因为AVSampleBufferDisplayLayer能够支持HDR10+。所以默认还是推荐用AVSampleBufferDisplayLayer
+    open func isUseDisplayLayer() -> Bool {
+        display == .plane
+    }
+
+    open func urlIO(log: String) {
+        if log.starts(with: "Original list of addresses"), dnsStartTime == 0 {
+            dnsStartTime = CACurrentMediaTime()
+        } else if log.starts(with: "Starting connection attempt to"), tcpStartTime == 0 {
+            tcpStartTime = CACurrentMediaTime()
+        } else if log.starts(with: "Successfully connected to"), tcpConnectedTime == 0 {
+            tcpConnectedTime = CACurrentMediaTime()
+        }
+    }
+
+    private var idetTypeMap = [VideoInterlacingType: UInt]()
+    open func filter(log: String) {
+        if log.starts(with: "Repeated Field:"), autoDeInterlace {
+            for str in log.split(separator: ",") {
+                let map = str.split(separator: ":")
+                if map.count >= 2 {
+                    if String(map[0].trimmingCharacters(in: .whitespaces)) == "Multi frame" {
+                        if let type = VideoInterlacingType(rawValue: map[1].trimmingCharacters(in: .whitespacesAndNewlines)) {
+                            idetTypeMap[type] = (idetTypeMap[type] ?? 0) + 1
+                            let tff = idetTypeMap[.tff] ?? 0
+                            let bff = idetTypeMap[.bff] ?? 0
+                            let progressive = idetTypeMap[.progressive] ?? 0
+                            let undetermined = idetTypeMap[.undetermined] ?? 0
+                            if progressive - tff - bff > 100 {
+                                videoInterlacingType = .progressive
+                                autoDeInterlace = false
+                            } else if bff - progressive > 100 {
+                                videoInterlacingType = .bff
+                                autoDeInterlace = false
+                            } else if tff - progressive > 100 {
+                                videoInterlacingType = .tff
+                                autoDeInterlace = false
+                            } else if undetermined - progressive - tff - bff > 100 {
+                                videoInterlacingType = .undetermined
+                                autoDeInterlace = false
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    open func sei(string: String) {
+        KSLog("sei \(string)")
+    }
+
+    /**
+            在创建解码器之前可以对KSOptions和assetTrack做一些处理。例如判断fieldOrder为tt或bb的话，那就自动加videofilters
+     */
+    open func process(assetTrack: some MediaPlayerTrack) {
+        if assetTrack.mediaType == .video {
+            if [FFmpegFieldOrder.bb, .bt, .tt, .tb].contains(assetTrack.fieldOrder) {
+                // todo 先不要用yadif_videotoolbox，不然会crash。这个后续在看下要怎么解决
+                hardwareDecode = false
+                asynchronousDecompression = false
+                let yadif = hardwareDecode ? "yadif_videotoolbox" : "yadif"
+                var yadifMode = KSOptions.yadifMode
+//                if let assetTrack = assetTrack as? FFmpegAssetTrack {
+//                    if assetTrack.realFrameRate.num == 2 * assetTrack.avgFrameRate.num, assetTrack.realFrameRate.den == assetTrack.avgFrameRate.den {
+//                        if yadifMode == 1 {
+//                            yadifMode = 0
+//                        } else if yadifMode == 3 {
+//                            yadifMode = 2
+//                        }
+//                    }
+//                }
+                if KSOptions.deInterlaceAddIdet {
+                    videoFilters.append("idet")
+                }
+                videoFilters.append("\(yadif)=mode=\(yadifMode):parity=-1:deint=1")
+                if yadifMode == 1 || yadifMode == 3 {
+                    assetTrack.nominalFrameRate = assetTrack.nominalFrameRate * 2
+                }
+            }
+        }
+    }
+
+    @MainActor
+    open func updateVideo(refreshRate: Float, isDovi: Bool, formatDescription: CMFormatDescription?) {
+        #if os(tvOS) || os(xrOS)
+        /**
+         快速更改preferredDisplayCriteria，会导致isDisplayModeSwitchInProgress变成true。
+         例如退出一个视频，然后在3s内重新进入的话。所以不判断isDisplayModeSwitchInProgress了
+         */
+        guard let displayManager = UIApplication.shared.windows.first?.avDisplayManager,
+              displayManager.isDisplayCriteriaMatchingEnabled
+        else {
+            return
+        }
+        if let dynamicRange = isDovi ? .dolbyVision : formatDescription?.dynamicRange {
+            displayManager.preferredDisplayCriteria = AVDisplayCriteria(refreshRate: refreshRate, videoDynamicRange: dynamicRange.rawValue)
+        }
+        #endif
+    }
+
+    open func videoClockSync(main: KSClock, nextVideoTime: TimeInterval, fps: Double, frameCount: Int) -> (Double, ClockProcessType) {
+        let desire = main.getTime() - videoDelay
+        let diff = nextVideoTime - desire
+//        print("[video] video diff \(diff) nextVideoTime \(nextVideoTime) main \(main.time.seconds)")
+        if diff >= 1 / fps / 2 {
+            videoClockDelayCount = 0
+            return (diff, .remain)
+        } else {
+            if diff < -4 / fps {
+                videoClockDelayCount += 1
+                let log = "[video] video delay=\(diff), clock=\(desire), delay count=\(videoClockDelayCount), frameCount=\(frameCount)"
+                if frameCount == 1 {
+                    if diff < -1, videoClockDelayCount % 10 == 0 {
+                        KSLog("\(log) drop gop Packet")
+                        return (diff, .dropGOPPacket)
+                    } else if videoClockDelayCount % 5 == 0 {
+                        KSLog("\(log) drop next frame")
+                        return (diff, .dropNextFrame)
+                    } else {
+                        return (diff, .next)
+                    }
+                } else {
+                    if diff < -8, videoClockDelayCount % 100 == 0 {
+                        KSLog("\(log) seek video track")
+                        return (diff, .seek)
+                    }
+                    if diff < -1, videoClockDelayCount % 10 == 0 {
+                        KSLog("\(log) flush video track")
+                        return (diff, .flush)
+                    }
+                    if videoClockDelayCount % 2 == 0 {
+                        KSLog("\(log) drop next frame")
+                        return (diff, .dropNextFrame)
+                    } else {
+                        return (diff, .next)
+                    }
+                }
+            } else {
+                videoClockDelayCount = 0
+                return (diff, .next)
+            }
+        }
+    }
+
+    open func availableDynamicRange(_ contentRange: DynamicRange?) -> DynamicRange? {
+        #if canImport(UIKit)
+        let availableHDRModes = AVPlayer.availableHDRModes
+        if let preferedDynamicRange = destinationDynamicRange {
+            // value of 0 indicates that no HDR modes are supported.
+            if availableHDRModes == AVPlayer.HDRMode(rawValue: 0) {
+                return .sdr
+            } else if availableHDRModes.contains(preferedDynamicRange.hdrMode) {
+                return preferedDynamicRange
+            } else if let contentRange,
+                      availableHDRModes.contains(contentRange.hdrMode)
+            {
+                return contentRange
+            } else if preferedDynamicRange != .sdr { // trying update to HDR mode
+                return availableHDRModes.dynamicRange
+            }
+        }
+        return contentRange
+        #else
+        return destinationDynamicRange ?? contentRange
+        #endif
+    }
+
+    open func playerLayerDeinit() {
+        #if os(tvOS) || os(xrOS)
+        runOnMainThread {
+            UIApplication.shared.windows.first?.avDisplayManager.preferredDisplayCriteria = nil
+        }
+        #endif
+    }
+
+    open func liveAdaptivePlaybackRate(loadingState _: LoadingState) -> Float? {
+        nil
+//        if loadingState.isFirst {
+//            return nil
+//        }
+//        if loadingState.loadedTime > preferredForwardBufferDuration + 5 {
+//            return 1.2
+//        } else if loadingState.loadedTime < preferredForwardBufferDuration / 2 {
+//            return 0.8
+//        } else {
+//            return 1
+//        }
+    }
+
+    open func process(url _: URL) -> AbstractAVIOContext? {
+        nil
+    }
+}
+
+public enum VideoInterlacingType: String {
+    case tff
+    case bff
+    case progressive
+    case undetermined
+}
+
+public extension KSOptions {
+    static var firstPlayerType: MediaPlayerProtocol.Type = KSAVPlayer.self
+    static var secondPlayerType: MediaPlayerProtocol.Type? = KSMEPlayer.self
+    /// 最低缓存视频时间
+    static var preferredForwardBufferDuration = 3.0
+    /// 最大缓存视频时间
+    static var maxBufferDuration = 30.0
+    /// 是否开启秒开
+    static var isSecondOpen = false
+    /// 开启精确seek
+    static var isAccurateSeek = false
+    /// Applies to short videos only
+    static var isLoopPlay = false
+    /// 是否自动播放，默认true
+    static var isAutoPlay = true
+    /// seek完是否自动播放
+    static var isSeekedAutoPlay = true
+    static var hardwareDecode = true
+    // 默认不用自研的硬解，因为有些视频的AVPacket的pts顺序是不对的，只有解码后的AVFrame里面的pts是对的。
+    static var asynchronousDecompression = false
+    static var isPipPopViewController = false
+    static var canStartPictureInPictureAutomaticallyFromInline = true
+    static var preferredFrame = true
+    static var useSystemHTTPProxy = true
+    /// 日志级别
+    static var logLevel = LogLevel.warning
+    static var logger: LogHandler = OSLog(lable: "KSPlayer")
+    internal static func deviceCpuCount() -> Int {
+        var ncpu = UInt(0)
+        var len: size_t = MemoryLayout.size(ofValue: ncpu)
+        sysctlbyname("hw.ncpu", &ncpu, &len, nil, 0)
+        return Int(ncpu)
+    }
+
+    static func setAudioSession() {
+        #if os(macOS)
+//        try? AVAudioSession.sharedInstance().setRouteSharingPolicy(.longFormAudio)
+        #else
+        var category = AVAudioSession.sharedInstance().category
+        if category != .playAndRecord {
+            category = .playback
+        }
+        #if os(tvOS)
+        try? AVAudioSession.sharedInstance().setCategory(category, mode: .moviePlayback, policy: .longFormAudio)
+        #else
+        try? AVAudioSession.sharedInstance().setCategory(category, mode: .moviePlayback, policy: .longFormVideo)
+        #endif
+        try? AVAudioSession.sharedInstance().setActive(true)
+        #endif
+    }
+
+    #if !os(macOS)
+    static func isSpatialAudioEnabled(channelCount _: AVAudioChannelCount) -> Bool {
+        if #available(tvOS 15.0, iOS 15.0, *) {
+            let isSpatialAudioEnabled = AVAudioSession.sharedInstance().currentRoute.outputs.contains { $0.isSpatialAudioEnabled }
+            try? AVAudioSession.sharedInstance().setSupportsMultichannelContent(isSpatialAudioEnabled)
+            return isSpatialAudioEnabled
+        } else {
+            return false
+        }
+    }
+
+    static func outputNumberOfChannels(channelCount: AVAudioChannelCount) -> AVAudioChannelCount {
+        let maximumOutputNumberOfChannels = AVAudioChannelCount(AVAudioSession.sharedInstance().maximumOutputNumberOfChannels)
+        let preferredOutputNumberOfChannels = AVAudioChannelCount(AVAudioSession.sharedInstance().preferredOutputNumberOfChannels)
+        let isSpatialAudioEnabled = isSpatialAudioEnabled(channelCount: channelCount)
+        let isUseAudioRenderer = KSOptions.audioPlayerType == AudioRendererPlayer.self
+        KSLog("[audio] maximumOutputNumberOfChannels: \(maximumOutputNumberOfChannels), preferredOutputNumberOfChannels: \(preferredOutputNumberOfChannels), isSpatialAudioEnabled: \(isSpatialAudioEnabled), isUseAudioRenderer: \(isUseAudioRenderer) ")
+        let maxRouteChannelsCount = AVAudioSession.sharedInstance().currentRoute.outputs.compactMap {
+            $0.channels?.count
+        }.max() ?? 2
+        KSLog("[audio] currentRoute max channels: \(maxRouteChannelsCount)")
+        var channelCount = channelCount
+        if channelCount > 2 {
+            let minChannels = min(maximumOutputNumberOfChannels, channelCount)
+            #if os(tvOS) || targetEnvironment(simulator)
+            if !(isUseAudioRenderer && isSpatialAudioEnabled) {
+                // 不要用maxRouteChannelsCount来判断，有可能会不准。导致多音道设备也返回2（一开始播放一个2声道，就容易出现），也不能用outputNumberOfChannels来判断，有可能会返回2
+//                channelCount = AVAudioChannelCount(min(AVAudioSession.sharedInstance().outputNumberOfChannels, maxRouteChannelsCount))
+                channelCount = minChannels
+            }
+            #else
+            // iOS 外放是会自动有空间音频功能，但是蓝牙耳机有可能没有空间音频功能或者把空间音频给关了，。所以还是需要处理。
+            if !isSpatialAudioEnabled {
+                channelCount = minChannels
+            }
+            #endif
+        } else {
+            channelCount = 2
+        }
+        // 不在这里设置setPreferredOutputNumberOfChannels,因为这个方法会在获取音轨信息的时候，进行调用。
+        KSLog("[audio] outputNumberOfChannels: \(AVAudioSession.sharedInstance().outputNumberOfChannels) output channelCount: \(channelCount)")
+        return channelCount
+    }
+    #endif
+}
+
+public enum LogLevel: Int32, CustomStringConvertible {
+    case panic = 0
+    case fatal = 8
+    case error = 16
+    case warning = 24
+    case info = 32
+    case verbose = 40
+    case debug = 48
+    case trace = 56
+
+    public var description: String {
+        switch self {
+        case .panic:
+            return "panic"
+        case .fatal:
+            return "fault"
+        case .error:
+            return "error"
+        case .warning:
+            return "warning"
+        case .info:
+            return "info"
+        case .verbose:
+            return "verbose"
+        case .debug:
+            return "debug"
+        case .trace:
+            return "trace"
+        }
+    }
+}
+
+public extension LogLevel {
+    var logType: OSLogType {
+        switch self {
+        case .panic, .fatal:
+            return .fault
+        case .error:
+            return .error
+        case .warning:
+            return .debug
+        case .info, .verbose, .debug:
+            return .info
+        case .trace:
+            return .default
+        }
+    }
+}
+
+public protocol LogHandler {
+    @inlinable
+    func log(level: LogLevel, message: CustomStringConvertible, file: String, function: String, line: UInt)
+}
+
+public class OSLog: LogHandler {
+    public let label: String
+    public init(lable: String) {
+        label = lable
+    }
+
+    @inlinable
+    public func log(level: LogLevel, message: CustomStringConvertible, file: String, function: String, line: UInt) {
+        os_log(level.logType, "%@ %@: %@:%d %@ | %@", level.description, label, file, line, function, message.description)
+    }
+}
+
+public class FileLog: LogHandler {
+    public let fileHandle: FileHandle
+    public let formatter = DateFormatter()
+    public init(fileHandle: FileHandle) {
+        self.fileHandle = fileHandle
+        formatter.dateFormat = "MM-dd HH:mm:ss.SSSSSS"
+    }
+
+    @inlinable
+    public func log(level: LogLevel, message: CustomStringConvertible, file: String, function: String, line: UInt) {
+        let string = String(format: "%@ %@ %@:%d %@ | %@\n", formatter.string(from: Date()), level.description, file, line, function, message.description)
+        if let data = string.data(using: .utf8) {
+            fileHandle.write(data)
+        }
+    }
+}
+
+@inlinable
+public func KSLog(_ error: @autoclosure () -> Error, file: String = #file, function: String = #function, line: UInt = #line) {
+    KSLog(level: .error, error().localizedDescription, file: file, function: function, line: line)
+}
+
+@inlinable
+public func KSLog(level: LogLevel = .warning, _ message: @autoclosure () -> CustomStringConvertible, file: String = #file, function: String = #function, line: UInt = #line) {
+    if level.rawValue <= KSOptions.logLevel.rawValue {
+        let fileName = (file as NSString).lastPathComponent
+        KSOptions.logger.log(level: level, message: message(), file: fileName, function: function, line: line)
+    }
+}
+
+@inlinable
+public func KSLog(level: LogLevel = .warning, dso: UnsafeRawPointer = #dsohandle, _ message: StaticString, _ args: CVarArg...) {
+    if level.rawValue <= KSOptions.logLevel.rawValue {
+        os_log(level.logType, dso: dso, message, args)
+    }
+}
+
+public extension Array {
+    func toDictionary<Key: Hashable>(with selectKey: (Element) -> Key) -> [Key: Element] {
+        var dict = [Key: Element]()
+        forEach { element in
+            dict[selectKey(element)] = element
+        }
+        return dict
+    }
+}
+
+public struct KSClock {
+    public private(set) var lastMediaTime = CACurrentMediaTime()
+    public internal(set) var position = Int64(0)
+    public internal(set) var time = CMTime.zero {
+        didSet {
+            lastMediaTime = CACurrentMediaTime()
+        }
+    }
+
+    func getTime() -> TimeInterval {
+        time.seconds + CACurrentMediaTime() - lastMediaTime
+    }
+}

KSPlayer-main/Sources/KSPlayer/AVPlayer/KSPictureInPictureController.swift

@@ -0,0 +1,110 @@
+//
+//  KSPictureInPictureController.swift
+//  KSPlayer
+//
+//  Created by kintan on 2023/1/28.
+//
+
+import AVKit
+
+@available(tvOS 14.0, *)
+public class KSPictureInPictureController: AVPictureInPictureController {
+    private static var pipController: KSPictureInPictureController?
+    private var originalViewController: UIViewController?
+    private var view: KSPlayerLayer?
+    private weak var viewController: UIViewController?
+    private weak var presentingViewController: UIViewController?
+    #if canImport(UIKit)
+    private weak var navigationController: UINavigationController?
+    #endif
+
+    func stop(restoreUserInterface: Bool) {
+        stopPictureInPicture()
+        delegate = nil
+        guard KSOptions.isPipPopViewController else {
+            return
+        }
+        KSPictureInPictureController.pipController = nil
+        if restoreUserInterface {
+            #if canImport(UIKit)
+            runOnMainThread { [weak self] in
+                guard let self, let viewController, let originalViewController else { return }
+                if let nav = viewController as? UINavigationController,
+                   nav.viewControllers.isEmpty || (nav.viewControllers.count == 1 && nav.viewControllers[0] != originalViewController)
+                {
+                    nav.viewControllers = [originalViewController]
+                }
+                if let navigationController {
+                    var viewControllers = navigationController.viewControllers
+                    if viewControllers.count > 1, let last = viewControllers.last, type(of: last) == type(of: viewController) {
+                        viewControllers[viewControllers.count - 1] = viewController
+                        navigationController.viewControllers = viewControllers
+                    }
+                    if viewControllers.firstIndex(of: viewController) == nil {
+                        // 新的swiftUI push之后。view会变成是emptyView。所以页面就空白了。
+                        navigationController.pushViewController(viewController, animated: true)
+                    }
+                } else {
+                    presentingViewController?.present(originalViewController, animated: true)
+                }
+            }
+            #endif
+            view?.player.isMuted = false
+            view?.play()
+        }
+
+        originalViewController = nil
+        view = nil
+    }
+
+    func start(view: KSPlayerLayer) {
+        startPictureInPicture()
+        delegate = view
+        guard KSOptions.isPipPopViewController else {
+            #if canImport(UIKit)
+            // 直接退到后台
+            runOnMainThread {
+                UIControl().sendAction(#selector(URLSessionTask.suspend), to: UIApplication.shared, for: nil)
+            }
+            #endif
+            return
+        }
+        self.view = view
+        #if canImport(UIKit)
+        runOnMainThread { [weak self] in
+            guard let self, let viewController = view.player.view?.viewController else { return }
+
+            originalViewController = viewController
+            if let navigationController = viewController.navigationController, navigationController.viewControllers.count == 1 {
+                self.viewController = navigationController
+            } else {
+                self.viewController = viewController
+            }
+            navigationController = self.viewController?.navigationController
+            if let pre = KSPictureInPictureController.pipController {
+                view.player.isMuted = true
+                pre.view?.isPipActive = false
+            } else {
+                if let navigationController {
+                    navigationController.popViewController(animated: true)
+                    #if os(iOS)
+                    if navigationController.tabBarController != nil, navigationController.viewControllers.count == 1 {
+                        DispatchQueue.main.async { [weak self] in
+                            self?.navigationController?.setToolbarHidden(false, animated: true)
+                        }
+                    }
+                    #endif
+                } else {
+                    presentingViewController = originalViewController?.presentingViewController
+                    originalViewController?.dismiss(animated: true)
+                }
+            }
+        }
+        #endif
+        KSPictureInPictureController.pipController = self
+    }
+
+    static func mute() {
+        pipController?.view?.player.isMuted = true
+    }
+}

KSPlayer-main/Sources/KSPlayer/AVPlayer/KSPlayerLayer.swift

@@ -0,0 +1,707 @@
+//
+//  KSPlayerLayerView.swift
+//  Pods
+//
+//  Created by kintan on 16/4/28.
+//
+//
+import AVFoundation
+import AVKit
+import MediaPlayer
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+
+/**
+ Player status emun
+ - setURL:      set url
+ - readyToPlay:    player ready to play
+ - buffering:      player buffering
+ - bufferFinished: buffer finished
+ - playedToTheEnd: played to the End
+ - error:          error with playing
+ */
+public enum KSPlayerState: CustomStringConvertible {
+    case initialized
+    case preparing
+    case readyToPlay
+    case buffering
+    case bufferFinished
+    case paused
+    case playedToTheEnd
+    case error
+    public var description: String {
+        switch self {
+        case .initialized:
+            return "initialized"
+        case .preparing:
+            return "preparing"
+        case .readyToPlay:
+            return "readyToPlay"
+        case .buffering:
+            return "buffering"
+        case .bufferFinished:
+            return "bufferFinished"
+        case .paused:
+            return "paused"
+        case .playedToTheEnd:
+            return "playedToTheEnd"
+        case .error:
+            return "error"
+        }
+    }
+
+    public var isPlaying: Bool { self == .buffering || self == .bufferFinished }
+}
+
+@MainActor
+public protocol KSPlayerLayerDelegate: AnyObject {
+    func player(layer: KSPlayerLayer, state: KSPlayerState)
+    func player(layer: KSPlayerLayer, currentTime: TimeInterval, totalTime: TimeInterval)
+    func player(layer: KSPlayerLayer, finish error: Error?)
+    func player(layer: KSPlayerLayer, bufferedCount: Int, consumeTime: TimeInterval)
+}
+
+open class KSPlayerLayer: NSObject {
+    public weak var delegate: KSPlayerLayerDelegate?
+    @Published
+    public var bufferingProgress: Int = 0
+    @Published
+    public var loopCount: Int = 0
+    @Published
+    public var isPipActive = false {
+        didSet {
+            if #available(tvOS 14.0, *) {
+                guard let pipController = player.pipController else {
+                    return
+                }
+
+                if isPipActive {
+                    // 一定要async才不会pip之后就暂停播放
+                    DispatchQueue.main.async { [weak self] in
+                        guard let self else { return }
+                        pipController.start(view: self)
+                    }
+                } else {
+                    pipController.stop(restoreUserInterface: true)
+                }
+            }
+        }
+    }
+
+    public private(set) var options: KSOptions
+
+    public var player: MediaPlayerProtocol {
+        didSet {
+            KSLog("player is \(player)")
+            state = .initialized
+            runOnMainThread { [weak self] in
+                guard let self else { return }
+                if let oldView = oldValue.view, let superview = oldView.superview, let view = player.view {
+                    #if canImport(UIKit)
+                    superview.insertSubview(view, belowSubview: oldView)
+                    #else
+                    superview.addSubview(view, positioned: .below, relativeTo: oldView)
+                    #endif
+                    view.translatesAutoresizingMaskIntoConstraints = false
+                    NSLayoutConstraint.activate([
+                        view.topAnchor.constraint(equalTo: superview.topAnchor),
+                        view.leadingAnchor.constraint(equalTo: superview.leadingAnchor),
+                        view.bottomAnchor.constraint(equalTo: superview.bottomAnchor),
+                        view.trailingAnchor.constraint(equalTo: superview.trailingAnchor),
+                    ])
+                }
+                oldValue.view?.removeFromSuperview()
+            }
+            player.playbackRate = oldValue.playbackRate
+            player.playbackVolume = oldValue.playbackVolume
+            player.delegate = self
+            player.contentMode = .scaleAspectFit
+            if isAutoPlay {
+                prepareToPlay()
+            }
+        }
+    }
+
+    public private(set) var url: URL {
+        didSet {
+            let firstPlayerType: MediaPlayerProtocol.Type
+            if isWirelessRouteActive {
+                // airplay的话，默认使用KSAVPlayer
+                firstPlayerType = KSAVPlayer.self
+            } else if options.display != .plane {
+                // AR模式只能用KSMEPlayer
+                // swiftlint:disable force_cast
+                firstPlayerType = NSClassFromString("KSPlayer.KSMEPlayer") as! MediaPlayerProtocol.Type
+                // swiftlint:enable force_cast
+            } else {
+                firstPlayerType = KSOptions.firstPlayerType
+            }
+            if type(of: player) == firstPlayerType {
+                if url == oldValue {
+                    if isAutoPlay {
+                        play()
+                    }
+                } else {
+                    stop()
+                    player.replace(url: url, options: options)
+                    if isAutoPlay {
+                        prepareToPlay()
+                    }
+                }
+            } else {
+                stop()
+                player = firstPlayerType.init(url: url, options: options)
+            }
+        }
+    }
+
+    /// 播发器的几种状态
+
+    public private(set) var state = KSPlayerState.initialized {
+        willSet {
+            if state != newValue {
+                runOnMainThread { [weak self] in
+                    guard let self else { return }
+                    KSLog("playerStateDidChange - \(newValue)")
+                    self.delegate?.player(layer: self, state: newValue)
+                }
+            }
+        }
+    }
+
+    private lazy var timer: Timer = .scheduledTimer(withTimeInterval: 0.1, repeats: true) { [weak self] _ in
+        guard let self, self.player.isReadyToPlay else {
+            return
+        }
+        self.delegate?.player(layer: self, currentTime: self.player.currentPlaybackTime, totalTime: self.player.duration)
+        if self.player.playbackState == .playing, self.player.loadState == .playable, self.state == .buffering {
+            // 一个兜底保护，正常不能走到这里
+            self.state = .bufferFinished
+        }
+        if self.player.isPlaying {
+            MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPNowPlayingInfoPropertyElapsedPlaybackTime] = self.player.currentPlaybackTime
+        }
+    }
+
+    private var urls = [URL]()
+    private var isAutoPlay: Bool
+    private var isWirelessRouteActive = false
+    private var bufferedCount = 0
+    private var shouldSeekTo: TimeInterval = 0
+    private var startTime: TimeInterval = 0
+    public init(url: URL, isAutoPlay: Bool = KSOptions.isAutoPlay, options: KSOptions, delegate: KSPlayerLayerDelegate? = nil) {
+        self.url = url
+        self.options = options
+        self.delegate = delegate
+        let firstPlayerType: MediaPlayerProtocol.Type
+        if options.display != .plane {
+            // AR模式只能用KSMEPlayer
+            // swiftlint:disable force_cast
+            firstPlayerType = NSClassFromString("KSPlayer.KSMEPlayer") as! MediaPlayerProtocol.Type
+            // swiftlint:enable force_cast
+        } else {
+            firstPlayerType = KSOptions.firstPlayerType
+        }
+        player = firstPlayerType.init(url: url, options: options)
+        self.isAutoPlay = isAutoPlay
+        super.init()
+        player.playbackRate = options.startPlayRate
+        if options.registerRemoteControll {
+            registerRemoteControllEvent()
+        }
+        player.delegate = self
+        player.contentMode = .scaleAspectFit
+        if isAutoPlay {
+            prepareToPlay()
+        }
+        #if canImport(UIKit)
+        runOnMainThread { [weak self] in
+            guard let self else { return }
+            NotificationCenter.default.addObserver(self, selector: #selector(enterBackground), name: UIApplication.didEnterBackgroundNotification, object: nil)
+            NotificationCenter.default.addObserver(self, selector: #selector(enterForeground), name: UIApplication.willEnterForegroundNotification, object: nil)
+        }
+        #if !os(xrOS)
+        NotificationCenter.default.addObserver(self, selector: #selector(wirelessRouteActiveDidChange(notification:)), name: .MPVolumeViewWirelessRouteActiveDidChange, object: nil)
+        #endif
+        #endif
+        #if !os(macOS)
+        NotificationCenter.default.addObserver(self, selector: #selector(audioInterrupted), name: AVAudioSession.interruptionNotification, object: nil)
+        #endif
+    }
+
+    @available(*, unavailable)
+    public required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    deinit {
+        if #available(iOS 15.0, tvOS 15.0, macOS 12.0, *) {
+            player.pipController?.contentSource = nil
+        }
+        NotificationCenter.default.removeObserver(self)
+        MPNowPlayingInfoCenter.default().nowPlayingInfo = nil
+        MPRemoteCommandCenter.shared().playCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().pauseCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().togglePlayPauseCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().stopCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().nextTrackCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().previousTrackCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().changeRepeatModeCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().changePlaybackRateCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().skipForwardCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().skipBackwardCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().changePlaybackPositionCommand.removeTarget(nil)
+        MPRemoteCommandCenter.shared().enableLanguageOptionCommand.removeTarget(nil)
+        options.playerLayerDeinit()
+    }
+
+    public func set(url: URL, options: KSOptions) {
+        self.options = options
+        runOnMainThread {
+            self.url = url
+        }
+    }
+
+    public func set(urls: [URL], options: KSOptions) {
+        self.options = options
+        self.urls.removeAll()
+        self.urls.append(contentsOf: urls)
+        if let first = urls.first {
+            runOnMainThread {
+                self.url = first
+            }
+        }
+    }
+
+    open func play() {
+        runOnMainThread {
+            UIApplication.shared.isIdleTimerDisabled = true
+        }
+        isAutoPlay = true
+        if state == .error || state == .initialized {
+            prepareToPlay()
+        }
+        if player.isReadyToPlay {
+            if state == .playedToTheEnd {
+                player.seek(time: 0) { [weak self] finished in
+                    guard let self else { return }
+                    if finished {
+                        self.player.play()
+                    }
+                }
+            } else {
+                player.play()
+            }
+            timer.fireDate = Date.distantPast
+        }
+        state = player.loadState == .playable ? .bufferFinished : .buffering
+        MPNowPlayingInfoCenter.default().playbackState = .playing
+        if #available(tvOS 14.0, *) {
+            KSPictureInPictureController.mute()
+        }
+    }
+
+    open func pause() {
+        isAutoPlay = false
+        player.pause()
+        timer.fireDate = Date.distantFuture
+        state = .paused
+        MPNowPlayingInfoCenter.default().playbackState = .paused
+        runOnMainThread {
+            UIApplication.shared.isIdleTimerDisabled = false
+        }
+    }
+
+    public func stop() {
+        KSLog("stop Player")
+        state = .initialized
+        player.shutdown()
+        bufferedCount = 0
+        shouldSeekTo = 0
+        player.playbackRate = 1
+        player.playbackVolume = 1
+        MPNowPlayingInfoCenter.default().nowPlayingInfo = nil
+        runOnMainThread {
+            UIApplication.shared.isIdleTimerDisabled = false
+        }
+    }
+
+    open func seek(time: TimeInterval, autoPlay: Bool, completion: @escaping ((Bool) -> Void)) {
+        if time.isInfinite || time.isNaN {
+            completion(false)
+        }
+        if player.isReadyToPlay, player.seekable {
+            player.seek(time: time) { [weak self] finished in
+                guard let self else { return }
+                if finished, autoPlay {
+                    self.play()
+                }
+                completion(finished)
+            }
+        } else {
+            isAutoPlay = autoPlay
+            shouldSeekTo = time
+            completion(false)
+        }
+    }
+}
+
+// MARK: - MediaPlayerDelegate
+
+extension KSPlayerLayer: MediaPlayerDelegate {
+    public func readyToPlay(player: some MediaPlayerProtocol) {
+        state = .readyToPlay
+        #if os(macOS)
+        runOnMainThread { [weak self] in
+            guard let self else { return }
+            if let window = player.view?.window {
+                window.isMovableByWindowBackground = true
+                if options.automaticWindowResize {
+                    let naturalSize = player.naturalSize
+                    if naturalSize.width > 0, naturalSize.height > 0 {
+                        window.aspectRatio = naturalSize
+                        var frame = window.frame
+                        frame.size.height = frame.width * naturalSize.height / naturalSize.width
+                        window.setFrame(frame, display: true)
+                    }
+                }
+            }
+        }
+        #endif
+        #if !os(macOS) && !os(tvOS)
+        if #available(iOS 14.2, *) {
+            if options.canStartPictureInPictureAutomaticallyFromInline {
+                player.pipController?.canStartPictureInPictureAutomaticallyFromInline = true
+            }
+        }
+        #endif
+        updateNowPlayingInfo()
+        if isAutoPlay {
+            if shouldSeekTo > 0 {
+                seek(time: shouldSeekTo, autoPlay: true) { [weak self] _ in
+                    guard let self else { return }
+                    self.shouldSeekTo = 0
+                }
+
+            } else {
+                play()
+            }
+        }
+    }
+
+    public func changeLoadState(player: some MediaPlayerProtocol) {
+        guard player.playbackState != .seeking else { return }
+        if player.loadState == .playable, startTime > 0 {
+            let diff = CACurrentMediaTime() - startTime
+            runOnMainThread { [weak self] in
+                guard let self else { return }
+                delegate?.player(layer: self, bufferedCount: bufferedCount, consumeTime: diff)
+            }
+            if bufferedCount == 0 {
+                var dic = ["firstTime": diff]
+                if options.tcpConnectedTime > 0 {
+                    dic["initTime"] = options.dnsStartTime - startTime
+                    dic["dnsTime"] = options.tcpStartTime - options.dnsStartTime
+                    dic["tcpTime"] = options.tcpConnectedTime - options.tcpStartTime
+                    dic["openTime"] = options.openTime - options.tcpConnectedTime
+                    dic["findTime"] = options.findTime - options.openTime
+                } else {
+                    dic["openTime"] = options.openTime - startTime
+                }
+                dic["findTime"] = options.findTime - options.openTime
+                dic["readyTime"] = options.readyTime - options.findTime
+                dic["readVideoTime"] = options.readVideoTime - options.readyTime
+                dic["readAudioTime"] = options.readAudioTime - options.readyTime
+                dic["decodeVideoTime"] = options.decodeVideoTime - options.readVideoTime
+                dic["decodeAudioTime"] = options.decodeAudioTime - options.readAudioTime
+                KSLog(dic)
+            }
+            bufferedCount += 1
+            startTime = 0
+        }
+        guard state.isPlaying else { return }
+        if player.loadState == .playable {
+            state = .bufferFinished
+        } else {
+            if state == .bufferFinished {
+                startTime = CACurrentMediaTime()
+            }
+            state = .buffering
+        }
+    }
+
+    public func changeBuffering(player _: some MediaPlayerProtocol, progress: Int) {
+        bufferingProgress = progress
+    }
+
+    public func playBack(player _: some MediaPlayerProtocol, loopCount: Int) {
+        self.loopCount = loopCount
+    }
+
+    public func finish(player: some MediaPlayerProtocol, error: Error?) {
+        if let error {
+            if type(of: player) != KSOptions.secondPlayerType, let secondPlayerType = KSOptions.secondPlayerType {
+                self.player = secondPlayerType.init(url: url, options: options)
+                return
+            }
+            state = .error
+            KSLog(error as CustomStringConvertible)
+        } else {
+            let duration = player.duration
+            runOnMainThread { [weak self] in
+                guard let self else { return }
+                delegate?.player(layer: self, currentTime: duration, totalTime: duration)
+            }
+            state = .playedToTheEnd
+        }
+        timer.fireDate = Date.distantFuture
+        bufferedCount = 1
+        runOnMainThread { [weak self] in
+            guard let self else { return }
+            delegate?.player(layer: self, finish: error)
+        }
+        if error == nil {
+            nextPlayer()
+        }
+    }
+}
+
+// MARK: - AVPictureInPictureControllerDelegate
+
+@available(tvOS 14.0, *)
+extension KSPlayerLayer: AVPictureInPictureControllerDelegate {
+    public func pictureInPictureControllerDidStopPictureInPicture(_: AVPictureInPictureController) {
+        player.pipController?.stop(restoreUserInterface: false)
+    }
+
+    public func pictureInPictureController(_: AVPictureInPictureController, restoreUserInterfaceForPictureInPictureStopWithCompletionHandler _: @escaping (Bool) -> Void) {
+        isPipActive = false
+    }
+}
+
+// MARK: - private functions
+
+extension KSPlayerLayer {
+    open func prepareToPlay() {
+        state = .preparing
+        startTime = CACurrentMediaTime()
+        bufferedCount = 0
+        player.prepareToPlay()
+    }
+
+    private func updateNowPlayingInfo() {
+        if MPNowPlayingInfoCenter.default().nowPlayingInfo == nil {
+            MPNowPlayingInfoCenter.default().nowPlayingInfo = [MPMediaItemPropertyPlaybackDuration: player.duration]
+        } else {
+            MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPMediaItemPropertyPlaybackDuration] = player.duration
+        }
+        if MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPMediaItemPropertyTitle] == nil, let title = player.dynamicInfo?.metadata["title"] {
+            MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPMediaItemPropertyTitle] = title
+        }
+        if MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPMediaItemPropertyArtist] == nil, let artist = player.dynamicInfo?.metadata["artist"] {
+            MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPMediaItemPropertyArtist] = artist
+        }
+        var current: [MPNowPlayingInfoLanguageOption] = []
+        var langs: [MPNowPlayingInfoLanguageOptionGroup] = []
+        for track in player.tracks(mediaType: .audio) {
+            if let lang = track.language {
+                let audioLang = MPNowPlayingInfoLanguageOption(type: .audible, languageTag: lang, characteristics: nil, displayName: track.name, identifier: track.name)
+                let audioGroup = MPNowPlayingInfoLanguageOptionGroup(languageOptions: [audioLang], defaultLanguageOption: nil, allowEmptySelection: false)
+                langs.append(audioGroup)
+                if track.isEnabled {
+                    current.append(audioLang)
+                }
+            }
+        }
+        if !langs.isEmpty {
+            MPRemoteCommandCenter.shared().enableLanguageOptionCommand.isEnabled = true
+        }
+        MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPNowPlayingInfoPropertyAvailableLanguageOptions] = langs
+        MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPNowPlayingInfoPropertyCurrentLanguageOptions] = current
+    }
+
+    private func nextPlayer() {
+        if urls.count > 1, let index = urls.firstIndex(of: url), index < urls.count - 1 {
+            isAutoPlay = true
+            url = urls[index + 1]
+        }
+    }
+
+    private func previousPlayer() {
+        if urls.count > 1, let index = urls.firstIndex(of: url), index > 0 {
+            isAutoPlay = true
+            url = urls[index - 1]
+        }
+    }
+
+    func seek(time: TimeInterval) {
+        seek(time: time, autoPlay: options.isSeekedAutoPlay) { _ in
+        }
+    }
+
+    public func registerRemoteControllEvent() {
+        let remoteCommand = MPRemoteCommandCenter.shared()
+        remoteCommand.playCommand.addTarget { [weak self] _ in
+            guard let self else {
+                return .commandFailed
+            }
+            self.play()
+            return .success
+        }
+        remoteCommand.pauseCommand.addTarget { [weak self] _ in
+            guard let self else {
+                return .commandFailed
+            }
+            self.pause()
+            return .success
+        }
+        remoteCommand.togglePlayPauseCommand.addTarget { [weak self] _ in
+            guard let self else {
+                return .commandFailed
+            }
+            if self.state.isPlaying {
+                self.pause()
+            } else {
+                self.play()
+            }
+            return .success
+        }
+        remoteCommand.stopCommand.addTarget { [weak self] _ in
+            guard let self else {
+                return .commandFailed
+            }
+            self.player.shutdown()
+            return .success
+        }
+        remoteCommand.nextTrackCommand.addTarget { [weak self] _ in
+            guard let self else {
+                return .commandFailed
+            }
+            self.nextPlayer()
+            return .success
+        }
+        remoteCommand.previousTrackCommand.addTarget { [weak self] _ in
+            guard let self else {
+                return .commandFailed
+            }
+            self.previousPlayer()
+            return .success
+        }
+        remoteCommand.changeRepeatModeCommand.addTarget { [weak self] event in
+            guard let self, let event = event as? MPChangeRepeatModeCommandEvent else {
+                return .commandFailed
+            }
+            self.options.isLoopPlay = event.repeatType != .off
+            return .success
+        }
+        remoteCommand.changeShuffleModeCommand.isEnabled = false
+        // remoteCommand.changeShuffleModeCommand.addTarget {})
+        remoteCommand.changePlaybackRateCommand.supportedPlaybackRates = [0.5, 1, 1.5, 2]
+        remoteCommand.changePlaybackRateCommand.addTarget { [weak self] event in
+            guard let self, let event = event as? MPChangePlaybackRateCommandEvent else {
+                return .commandFailed
+            }
+            self.player.playbackRate = event.playbackRate
+            return .success
+        }
+        remoteCommand.skipForwardCommand.preferredIntervals = [15]
+        remoteCommand.skipForwardCommand.addTarget { [weak self] event in
+            guard let self, let event = event as? MPSkipIntervalCommandEvent else {
+                return .commandFailed
+            }
+            self.seek(time: self.player.currentPlaybackTime + event.interval)
+            return .success
+        }
+        remoteCommand.skipBackwardCommand.preferredIntervals = [15]
+        remoteCommand.skipBackwardCommand.addTarget { [weak self] event in
+            guard let self, let event = event as? MPSkipIntervalCommandEvent else {
+                return .commandFailed
+            }
+            self.seek(time: self.player.currentPlaybackTime - event.interval)
+            return .success
+        }
+        remoteCommand.changePlaybackPositionCommand.addTarget { [weak self] event in
+            guard let self, let event = event as? MPChangePlaybackPositionCommandEvent else {
+                return .commandFailed
+            }
+            self.seek(time: event.positionTime)
+            return .success
+        }
+        remoteCommand.enableLanguageOptionCommand.addTarget { [weak self] event in
+            guard let self, let event = event as? MPChangeLanguageOptionCommandEvent else {
+                return .commandFailed
+            }
+            let selectLang = event.languageOption
+            if selectLang.languageOptionType == .audible,
+               let trackToSelect = self.player.tracks(mediaType: .audio).first(where: { $0.name == selectLang.displayName })
+            {
+                self.player.select(track: trackToSelect)
+            }
+            return .success
+        }
+    }
+
+    @objc private func enterBackground() {
+        guard state.isPlaying, !player.isExternalPlaybackActive else {
+            return
+        }
+        if #available(tvOS 14.0, *), player.pipController?.isPictureInPictureActive == true {
+            return
+        }
+
+        if KSOptions.canBackgroundPlay {
+            player.enterBackground()
+            return
+        }
+        pause()
+    }
+
+    @objc private func enterForeground() {
+        if KSOptions.canBackgroundPlay {
+            player.enterForeground()
+        }
+    }
+
+    #if canImport(UIKit) && !os(xrOS)
+    @MainActor
+    @objc private func wirelessRouteActiveDidChange(notification: Notification) {
+        guard let volumeView = notification.object as? MPVolumeView, isWirelessRouteActive != volumeView.isWirelessRouteActive else { return }
+        if volumeView.isWirelessRouteActive {
+            if !player.allowsExternalPlayback {
+                isWirelessRouteActive = true
+            }
+            player.usesExternalPlaybackWhileExternalScreenIsActive = true
+        }
+        isWirelessRouteActive = volumeView.isWirelessRouteActive
+    }
+    #endif
+    #if !os(macOS)
+    @objc private func audioInterrupted(notification: Notification) {
+        guard let userInfo = notification.userInfo,
+              let typeValue = userInfo[AVAudioSessionInterruptionTypeKey] as? UInt,
+              let type = AVAudioSession.InterruptionType(rawValue: typeValue)
+        else {
+            return
+        }
+        switch type {
+        case .began:
+            pause()
+
+        case .ended:
+            // An interruption ended. Resume playback, if appropriate.
+
+            guard let optionsValue = userInfo[AVAudioSessionInterruptionOptionKey] as? UInt else { return }
+            let options = AVAudioSession.InterruptionOptions(rawValue: optionsValue)
+            if options.contains(.shouldResume) {
+                play()
+            }
+
+        default:
+            break
+        }
+    }
+    #endif
+}

KSPlayer-main/Sources/KSPlayer/AVPlayer/KSVideoPlayer.swift

@@ -0,0 +1,336 @@
+//
+//  KSVideoPlayer.swift
+//  KSPlayer
+//
+//  Created by kintan on 2023/2/11.
+//
+
+import Foundation
+import SwiftUI
+
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+
+public typealias UIViewRepresentable = NSViewRepresentable
+#endif
+
+public struct KSVideoPlayer {
+    public private(set) var coordinator: Coordinator
+    public let url: URL
+    public let options: KSOptions
+    public init(coordinator: Coordinator, url: URL, options: KSOptions) {
+        self.coordinator = coordinator
+        self.url = url
+        self.options = options
+    }
+}
+
+extension KSVideoPlayer: UIViewRepresentable {
+    public func makeCoordinator() -> Coordinator {
+        coordinator
+    }
+
+    #if canImport(UIKit)
+    public typealias UIViewType = UIView
+    public func makeUIView(context: Context) -> UIViewType {
+        context.coordinator.makeView(url: url, options: options)
+    }
+
+    public func updateUIView(_ view: UIViewType, context: Context) {
+        updateView(view, context: context)
+    }
+
+    // iOS tvOS真机先调用onDisappear在调用dismantleUIView，但是模拟器就反过来了。
+    public static func dismantleUIView(_: UIViewType, coordinator: Coordinator) {
+        coordinator.resetPlayer()
+    }
+    #else
+    public typealias NSViewType = UIView
+    public func makeNSView(context: Context) -> NSViewType {
+        context.coordinator.makeView(url: url, options: options)
+    }
+
+    public func updateNSView(_ view: NSViewType, context: Context) {
+        updateView(view, context: context)
+    }
+
+    // macOS先调用onDisappear在调用dismantleNSView
+    public static func dismantleNSView(_ view: NSViewType, coordinator: Coordinator) {
+        coordinator.resetPlayer()
+        view.window?.aspectRatio = CGSize(width: 16, height: 9)
+    }
+    #endif
+
+    @MainActor
+    private func updateView(_: UIView, context: Context) {
+        if context.coordinator.playerLayer?.url != url {
+            _ = context.coordinator.makeView(url: url, options: options)
+        }
+    }
+
+    @MainActor
+    public final class Coordinator: ObservableObject {
+        public var state: KSPlayerState {
+            playerLayer?.state ?? .initialized
+        }
+
+        @Published
+        public var isMuted: Bool = false {
+            didSet {
+                playerLayer?.player.isMuted = isMuted
+            }
+        }
+
+        @Published
+        public var playbackVolume: Float = 1.0 {
+            didSet {
+                playerLayer?.player.playbackVolume = playbackVolume
+            }
+        }
+
+        @Published
+        public var isScaleAspectFill = false {
+            didSet {
+                playerLayer?.player.contentMode = isScaleAspectFill ? .scaleAspectFill : .scaleAspectFit
+            }
+        }
+
+        @Published
+        public var playbackRate: Float = 1.0 {
+            didSet {
+                playerLayer?.player.playbackRate = playbackRate
+            }
+        }
+
+        @Published
+        @MainActor
+        public var isMaskShow = true {
+            didSet {
+                if isMaskShow != oldValue {
+                    mask(show: isMaskShow)
+                }
+            }
+        }
+
+        public var subtitleModel = SubtitleModel()
+        public var timemodel = ControllerTimeModel()
+        // 在SplitView模式下，第二次进入会先调用makeUIView。然后在调用之前的dismantleUIView.所以如果进入的是同一个View的话，就会导致playerLayer被清空了。最准确的方式是在onDisappear清空playerLayer
+        public var playerLayer: KSPlayerLayer? {
+            didSet {
+                oldValue?.delegate = nil
+                oldValue?.pause()
+            }
+        }
+
+        private var delayHide: DispatchWorkItem?
+        public var onPlay: ((TimeInterval, TimeInterval) -> Void)?
+        public var onFinish: ((KSPlayerLayer, Error?) -> Void)?
+        public var onStateChanged: ((KSPlayerLayer, KSPlayerState) -> Void)?
+        public var onBufferChanged: ((Int, TimeInterval) -> Void)?
+        #if canImport(UIKit)
+        fileprivate var onSwipe: ((UISwipeGestureRecognizer.Direction) -> Void)?
+        @objc fileprivate func swipeGestureAction(_ recognizer: UISwipeGestureRecognizer) {
+            onSwipe?(recognizer.direction)
+        }
+        #endif
+
+        public init() {}
+
+        public func makeView(url: URL, options: KSOptions) -> UIView {
+            defer {
+                DispatchQueue.main.async { [weak self] in
+                    self?.subtitleModel.url = url
+                }
+            }
+            if let playerLayer {
+                if playerLayer.url == url {
+                    return playerLayer.player.view ?? UIView()
+                }
+                playerLayer.delegate = nil
+                playerLayer.set(url: url, options: options)
+                playerLayer.delegate = self
+                return playerLayer.player.view ?? UIView()
+            } else {
+                let playerLayer = KSPlayerLayer(url: url, options: options, delegate: self)
+                self.playerLayer = playerLayer
+                return playerLayer.player.view ?? UIView()
+            }
+        }
+
+        public func resetPlayer() {
+            onStateChanged = nil
+            onPlay = nil
+            onFinish = nil
+            onBufferChanged = nil
+            #if canImport(UIKit)
+            onSwipe = nil
+            #endif
+            playerLayer = nil
+            delayHide?.cancel()
+            delayHide = nil
+            subtitleModel.selectedSubtitleInfo?.isEnabled = false
+        }
+
+        public func skip(interval: Int) {
+            if let playerLayer {
+                seek(time: playerLayer.player.currentPlaybackTime + TimeInterval(interval))
+            }
+        }
+
+        public func seek(time: TimeInterval) {
+            playerLayer?.seek(time: TimeInterval(time))
+        }
+
+        @MainActor
+        public func mask(show: Bool, autoHide: Bool = true) {
+            isMaskShow = show
+            if show {
+                delayHide?.cancel()
+                // 播放的时候才自动隐藏
+                guard state == .bufferFinished else { return }
+                if autoHide {
+                    delayHide = DispatchWorkItem { [weak self] in
+                        guard let self else { return }
+                        if self.state == .bufferFinished {
+                            self.isMaskShow = false
+                        }
+                    }
+                    DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + KSOptions.animateDelayTimeInterval,
+                                                  execute: delayHide!)
+                }
+            }
+            #if os(macOS)
+            show ? NSCursor.unhide() : NSCursor.setHiddenUntilMouseMoves(true)
+            if let window = playerLayer?.player.view?.window {
+                if !window.styleMask.contains(.fullScreen) {
+                    window.standardWindowButton(.closeButton)?.superview?.superview?.isHidden = !show
+                    //                    window.standardWindowButton(.zoomButton)?.isHidden = !show
+                    //                    window.standardWindowButton(.closeButton)?.isHidden = !show
+                    //                    window.standardWindowButton(.miniaturizeButton)?.isHidden = !show
+                    //                    window.titleVisibility = show ? .visible : .hidden
+                }
+            }
+            #endif
+        }
+    }
+}
+
+extension KSVideoPlayer.Coordinator: KSPlayerLayerDelegate {
+    public func player(layer: KSPlayerLayer, state: KSPlayerState) {
+        onStateChanged?(layer, state)
+        if state == .readyToPlay {
+            playbackRate = layer.player.playbackRate
+            if let subtitleDataSouce = layer.player.subtitleDataSouce {
+                // 要延后增加内嵌字幕。因为有些内嵌字幕是放在视频流的。所以会比readyToPlay回调晚。
+                DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 1) { [weak self] in
+                    guard let self else { return }
+                    self.subtitleModel.addSubtitle(dataSouce: subtitleDataSouce)
+                    if self.subtitleModel.selectedSubtitleInfo == nil, layer.options.autoSelectEmbedSubtitle {
+                        self.subtitleModel.selectedSubtitleInfo = subtitleDataSouce.infos.first { $0.isEnabled }
+                    }
+                }
+            }
+        } else if state == .bufferFinished {
+            isMaskShow = false
+        } else {
+            isMaskShow = true
+            #if canImport(UIKit)
+            if state == .preparing, let view = layer.player.view {
+                let swipeDown = UISwipeGestureRecognizer(target: self, action: #selector(swipeGestureAction(_:)))
+                swipeDown.direction = .down
+                view.addGestureRecognizer(swipeDown)
+                let swipeLeft = UISwipeGestureRecognizer(target: self, action: #selector(swipeGestureAction(_:)))
+                swipeLeft.direction = .left
+                view.addGestureRecognizer(swipeLeft)
+                let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(swipeGestureAction(_:)))
+                swipeRight.direction = .right
+                view.addGestureRecognizer(swipeRight)
+                let swipeUp = UISwipeGestureRecognizer(target: self, action: #selector(swipeGestureAction(_:)))
+                swipeUp.direction = .up
+                view.addGestureRecognizer(swipeUp)
+            }
+            #endif
+        }
+    }
+
+    public func player(layer _: KSPlayerLayer, currentTime: TimeInterval, totalTime: TimeInterval) {
+        onPlay?(currentTime, totalTime)
+        if currentTime >= Double(Int.max) || currentTime <= Double(Int.min) || totalTime >= Double(Int.max) || totalTime <= Double(Int.min) {
+            return
+        }
+        let current = Int(currentTime)
+        let total = Int(max(0, totalTime))
+        if timemodel.currentTime != current {
+            timemodel.currentTime = current
+        }
+        if timemodel.totalTime != total {
+            timemodel.totalTime = total
+        }
+        _ = subtitleModel.subtitle(currentTime: currentTime)
+    }
+
+    public func player(layer: KSPlayerLayer, finish error: Error?) {
+        onFinish?(layer, error)
+    }
+
+    public func player(layer _: KSPlayerLayer, bufferedCount: Int, consumeTime: TimeInterval) {
+        onBufferChanged?(bufferedCount, consumeTime)
+    }
+}
+
+extension KSVideoPlayer: Equatable {
+    public static func == (lhs: KSVideoPlayer, rhs: KSVideoPlayer) -> Bool {
+        lhs.url == rhs.url
+    }
+}
+
+@MainActor
+public extension KSVideoPlayer {
+    func onBufferChanged(_ handler: @escaping (Int, TimeInterval) -> Void) -> Self {
+        coordinator.onBufferChanged = handler
+        return self
+    }
+
+    /// Playing to the end.
+    func onFinish(_ handler: @escaping (KSPlayerLayer, Error?) -> Void) -> Self {
+        coordinator.onFinish = handler
+        return self
+    }
+
+    func onPlay(_ handler: @escaping (TimeInterval, TimeInterval) -> Void) -> Self {
+        coordinator.onPlay = handler
+        return self
+    }
+
+    /// Playback status changes, such as from play to pause.
+    func onStateChanged(_ handler: @escaping (KSPlayerLayer, KSPlayerState) -> Void) -> Self {
+        coordinator.onStateChanged = handler
+        return self
+    }
+
+    #if canImport(UIKit)
+    func onSwipe(_ handler: @escaping (UISwipeGestureRecognizer.Direction) -> Void) -> Self {
+        coordinator.onSwipe = handler
+        return self
+    }
+    #endif
+}
+
+extension View {
+    func then(_ body: (inout Self) -> Void) -> Self {
+        var result = self
+        body(&result)
+        return result
+    }
+}
+
+/// 这是一个频繁变化的model。View要少用这个
+public class ControllerTimeModel: ObservableObject {
+    // 改成int才不会频繁更新
+    @Published
+    public var currentTime = 0
+    @Published
+    public var totalTime = 1
+}

KSPlayer-main/Sources/KSPlayer/AVPlayer/MediaPlayerProtocol.swift

@@ -0,0 +1,335 @@
+//
+//  MediaPlayerProtocol.swift
+//  KSPlayer-tvOS
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import AVFoundation
+import Foundation
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+
+public protocol MediaPlayback: AnyObject {
+    var duration: TimeInterval { get }
+    var fileSize: Double { get }
+    var naturalSize: CGSize { get }
+    var chapters: [Chapter] { get }
+    var currentPlaybackTime: TimeInterval { get }
+    func prepareToPlay()
+    func shutdown()
+    func seek(time: TimeInterval, completion: @escaping ((Bool) -> Void))
+}
+
+public class DynamicInfo: ObservableObject {
+    private let metadataBlock: () -> [String: String]
+    private let bytesReadBlock: () -> Int64
+    private let audioBitrateBlock: () -> Int
+    private let videoBitrateBlock: () -> Int
+    public var metadata: [String: String] {
+        metadataBlock()
+    }
+
+    public var bytesRead: Int64 {
+        bytesReadBlock()
+    }
+
+    public var audioBitrate: Int {
+        audioBitrateBlock()
+    }
+
+    public var videoBitrate: Int {
+        videoBitrateBlock()
+    }
+
+    @Published
+    public var displayFPS = 0.0
+    public var audioVideoSyncDiff = 0.0
+    public var droppedVideoFrameCount = UInt32(0)
+    public var droppedVideoPacketCount = UInt32(0)
+    init(metadata: @escaping () -> [String: String], bytesRead: @escaping () -> Int64, audioBitrate: @escaping () -> Int, videoBitrate: @escaping () -> Int) {
+        metadataBlock = metadata
+        bytesReadBlock = bytesRead
+        audioBitrateBlock = audioBitrate
+        videoBitrateBlock = videoBitrate
+    }
+}
+
+public struct Chapter {
+    public let start: TimeInterval
+    public let end: TimeInterval
+    public let title: String
+}
+
+public protocol MediaPlayerProtocol: MediaPlayback {
+    var delegate: MediaPlayerDelegate? { get set }
+    var view: UIView? { get }
+    var playableTime: TimeInterval { get }
+    var isReadyToPlay: Bool { get }
+    var playbackState: MediaPlaybackState { get }
+    var loadState: MediaLoadState { get }
+    var isPlaying: Bool { get }
+    var seekable: Bool { get }
+    //    var numberOfBytesTransferred: Int64 { get }
+    var isMuted: Bool { get set }
+    var allowsExternalPlayback: Bool { get set }
+    var usesExternalPlaybackWhileExternalScreenIsActive: Bool { get set }
+    var isExternalPlaybackActive: Bool { get }
+    var playbackRate: Float { get set }
+    var playbackVolume: Float { get set }
+    var contentMode: UIViewContentMode { get set }
+    var subtitleDataSouce: SubtitleDataSouce? { get }
+    @available(macOS 12.0, iOS 15.0, tvOS 15.0, *)
+    var playbackCoordinator: AVPlaybackCoordinator { get }
+    @available(tvOS 14.0, *)
+    var pipController: KSPictureInPictureController? { get }
+    var dynamicInfo: DynamicInfo? { get }
+    init(url: URL, options: KSOptions)
+    func replace(url: URL, options: KSOptions)
+    func play()
+    func pause()
+    func enterBackground()
+    func enterForeground()
+    func thumbnailImageAtCurrentTime() async -> CGImage?
+    func tracks(mediaType: AVFoundation.AVMediaType) -> [MediaPlayerTrack]
+    func select(track: some MediaPlayerTrack)
+}
+
+public extension MediaPlayerProtocol {
+    var nominalFrameRate: Float {
+        tracks(mediaType: .video).first { $0.isEnabled }?.nominalFrameRate ?? 0
+    }
+}
+
+@MainActor
+public protocol MediaPlayerDelegate: AnyObject {
+    func readyToPlay(player: some MediaPlayerProtocol)
+    func changeLoadState(player: some MediaPlayerProtocol)
+    // 缓冲加载进度，0-100
+    func changeBuffering(player: some MediaPlayerProtocol, progress: Int)
+    func playBack(player: some MediaPlayerProtocol, loopCount: Int)
+    func finish(player: some MediaPlayerProtocol, error: Error?)
+}
+
+public protocol MediaPlayerTrack: AnyObject, CustomStringConvertible {
+    var trackID: Int32 { get }
+    var name: String { get }
+    var languageCode: String? { get }
+    var mediaType: AVFoundation.AVMediaType { get }
+    var nominalFrameRate: Float { get set }
+    var bitRate: Int64 { get }
+    var bitDepth: Int32 { get }
+    var isEnabled: Bool { get set }
+    var isImageSubtitle: Bool { get }
+    var rotation: Int16 { get }
+    var dovi: DOVIDecoderConfigurationRecord? { get }
+    var fieldOrder: FFmpegFieldOrder { get }
+    var formatDescription: CMFormatDescription? { get }
+}
+
+// public extension MediaPlayerTrack: Identifiable {
+//    var id: Int32 { trackID }
+// }
+
+public enum MediaPlaybackState: Int {
+    case idle
+    case playing
+    case paused
+    case seeking
+    case finished
+    case stopped
+}
+
+public enum MediaLoadState: Int {
+    case idle
+    case loading
+    case playable
+}
+
+// swiftlint:disable identifier_name
+public struct DOVIDecoderConfigurationRecord {
+    public let dv_version_major: UInt8
+    public let dv_version_minor: UInt8
+    public let dv_profile: UInt8
+    public let dv_level: UInt8
+    public let rpu_present_flag: UInt8
+    public let el_present_flag: UInt8
+    public let bl_present_flag: UInt8
+    public let dv_bl_signal_compatibility_id: UInt8
+}
+
+public enum FFmpegFieldOrder: UInt8 {
+    case unknown = 0
+    case progressive
+    case tt // < Top coded_first, top displayed first
+    case bb // < Bottom coded first, bottom displayed first
+    case tb // < Top coded first, bottom displayed first
+    case bt // < Bottom coded first, top displayed first
+}
+
+extension FFmpegFieldOrder: CustomStringConvertible {
+    public var description: String {
+        switch self {
+        case .unknown, .progressive:
+            return "progressive"
+        case .tt:
+            return "top first"
+        case .bb:
+            return "bottom first"
+        case .tb:
+            return "top coded first (swapped)"
+        case .bt:
+            return "bottom coded first (swapped)"
+        }
+    }
+}
+
+// swiftlint:enable identifier_name
+public extension MediaPlayerTrack {
+    var language: String? {
+        languageCode.flatMap {
+            Locale.current.localizedString(forLanguageCode: $0)
+        }
+    }
+
+    var codecType: FourCharCode {
+        mediaSubType.rawValue
+    }
+
+    var dynamicRange: DynamicRange? {
+        if dovi != nil {
+            return .dolbyVision
+        } else {
+            return formatDescription?.dynamicRange
+        }
+    }
+
+    var colorSpace: CGColorSpace? {
+        KSOptions.colorSpace(ycbcrMatrix: yCbCrMatrix as CFString?, transferFunction: transferFunction as CFString?)
+    }
+
+    var mediaSubType: CMFormatDescription.MediaSubType {
+        formatDescription?.mediaSubType ?? .boxed
+    }
+
+    var audioStreamBasicDescription: AudioStreamBasicDescription? {
+        formatDescription?.audioStreamBasicDescription
+    }
+
+    var naturalSize: CGSize {
+        formatDescription?.naturalSize ?? .zero
+    }
+
+    var colorPrimaries: String? {
+        formatDescription?.colorPrimaries
+    }
+
+    var transferFunction: String? {
+        formatDescription?.transferFunction
+    }
+
+    var yCbCrMatrix: String? {
+        formatDescription?.yCbCrMatrix
+    }
+}
+
+public extension CMFormatDescription {
+    var dynamicRange: DynamicRange {
+        let contentRange: DynamicRange
+        if codecType.string == "dvhe" || codecType == kCMVideoCodecType_DolbyVisionHEVC {
+            contentRange = .dolbyVision
+        } else if bitDepth == 10 || transferFunction == kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ as String { /// HDR
+            contentRange = .hdr10
+        } else if transferFunction == kCVImageBufferTransferFunction_ITU_R_2100_HLG as String { /// HLG
+            contentRange = .hlg
+        } else {
+            contentRange = .sdr
+        }
+        return contentRange
+    }
+
+    var bitDepth: Int32 {
+        codecType.bitDepth
+    }
+
+    var codecType: FourCharCode {
+        mediaSubType.rawValue
+    }
+
+    var colorPrimaries: String? {
+        if let dictionary = CMFormatDescriptionGetExtensions(self) as NSDictionary? {
+            return dictionary[kCVImageBufferColorPrimariesKey] as? String
+        } else {
+            return nil
+        }
+    }
+
+    var transferFunction: String? {
+        if let dictionary = CMFormatDescriptionGetExtensions(self) as NSDictionary? {
+            return dictionary[kCVImageBufferTransferFunctionKey] as? String
+        } else {
+            return nil
+        }
+    }
+
+    var yCbCrMatrix: String? {
+        if let dictionary = CMFormatDescriptionGetExtensions(self) as NSDictionary? {
+            return dictionary[kCVImageBufferYCbCrMatrixKey] as? String
+        } else {
+            return nil
+        }
+    }
+
+    var naturalSize: CGSize {
+        let aspectRatio = aspectRatio
+        return CGSize(width: Int(dimensions.width), height: Int(CGFloat(dimensions.height) * aspectRatio.height / aspectRatio.width))
+    }
+
+    var aspectRatio: CGSize {
+        if let dictionary = CMFormatDescriptionGetExtensions(self) as NSDictionary? {
+            if let ratio = dictionary[kCVImageBufferPixelAspectRatioKey] as? NSDictionary,
+               let horizontal = (ratio[kCVImageBufferPixelAspectRatioHorizontalSpacingKey] as? NSNumber)?.intValue,
+               let vertical = (ratio[kCVImageBufferPixelAspectRatioVerticalSpacingKey] as? NSNumber)?.intValue,
+               horizontal > 0, vertical > 0
+            {
+                return CGSize(width: horizontal, height: vertical)
+            }
+        }
+        return CGSize(width: 1, height: 1)
+    }
+
+    var depth: Int32 {
+        if let dictionary = CMFormatDescriptionGetExtensions(self) as NSDictionary? {
+            return dictionary[kCMFormatDescriptionExtension_Depth] as? Int32 ?? 24
+        } else {
+            return 24
+        }
+    }
+
+    var fullRangeVideo: Bool {
+        if let dictionary = CMFormatDescriptionGetExtensions(self) as NSDictionary? {
+            return dictionary[kCMFormatDescriptionExtension_FullRangeVideo] as? Bool ?? false
+        } else {
+            return false
+        }
+    }
+}
+
+func setHttpProxy() {
+    guard KSOptions.useSystemHTTPProxy else {
+        return
+    }
+    guard let proxySettings = CFNetworkCopySystemProxySettings()?.takeUnretainedValue() as? NSDictionary else {
+        unsetenv("http_proxy")
+        return
+    }
+    guard let proxyHost = proxySettings[kCFNetworkProxiesHTTPProxy] as? String, let proxyPort = proxySettings[kCFNetworkProxiesHTTPPort] as? Int else {
+        unsetenv("http_proxy")
+        return
+    }
+    let httpProxy = "http://\(proxyHost):\(proxyPort)"
+    setenv("http_proxy", httpProxy, 0)
+}

KSPlayer-main/Sources/KSPlayer/AVPlayer/PlayerDefines.swift

@@ -0,0 +1,378 @@
+//
+//  PlayerDefines.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import AVFoundation
+import CoreMedia
+import CoreServices
+#if canImport(UIKit)
+import UIKit
+
+public extension KSOptions {
+    @MainActor
+    static var windowScene: UIWindowScene? {
+        UIApplication.shared.connectedScenes.first as? UIWindowScene
+    }
+
+    @MainActor
+    static var sceneSize: CGSize {
+        let window = windowScene?.windows.first
+        return window?.bounds.size ?? .zero
+    }
+}
+#else
+import AppKit
+import SwiftUI
+
+public typealias UIView = NSView
+public typealias UIPasteboard = NSPasteboard
+public extension KSOptions {
+    static var sceneSize: CGSize {
+        NSScreen.main?.frame.size ?? .zero
+    }
+}
+#endif
+
+// extension MediaPlayerTrack {
+//    static func == (lhs: Self, rhs: Self) -> Bool {
+//        lhs.trackID == rhs.trackID
+//    }
+// }
+
+public enum DynamicRange: Int32 {
+    case sdr = 0
+    case hdr10 = 2
+    case hlg = 3
+    case dolbyVision = 5
+
+    #if canImport(UIKit)
+    var hdrMode: AVPlayer.HDRMode {
+        switch self {
+        case .sdr:
+            return AVPlayer.HDRMode(rawValue: 0)
+        case .hdr10:
+            return .hdr10 // 2
+        case .hlg:
+            return .hlg // 1
+        case .dolbyVision:
+            return .dolbyVision // 4
+        }
+    }
+    #endif
+    public static var availableHDRModes: [DynamicRange] {
+        #if os(macOS)
+        if NSScreen.main?.maximumPotentialExtendedDynamicRangeColorComponentValue ?? 1.0 > 1.0 {
+            return [.hdr10]
+        } else {
+            return [.sdr]
+        }
+        #else
+        let availableHDRModes = AVPlayer.availableHDRModes
+        if availableHDRModes == AVPlayer.HDRMode(rawValue: 0) {
+            return [.sdr]
+        } else {
+            var modes = [DynamicRange]()
+            if availableHDRModes.contains(.dolbyVision) {
+                modes.append(.dolbyVision)
+            }
+            if availableHDRModes.contains(.hdr10) {
+                modes.append(.hdr10)
+            }
+            if availableHDRModes.contains(.hlg) {
+                modes.append(.hlg)
+            }
+            return modes
+        }
+        #endif
+    }
+}
+
+extension DynamicRange: CustomStringConvertible {
+    public var description: String {
+        switch self {
+        case .sdr:
+            return "SDR"
+        case .hdr10:
+            return "HDR10"
+        case .hlg:
+            return "HLG"
+        case .dolbyVision:
+            return "Dolby Vision"
+        }
+    }
+}
+
+extension DynamicRange {
+    var colorPrimaries: CFString {
+        switch self {
+        case .sdr:
+            return kCVImageBufferColorPrimaries_ITU_R_709_2
+        case .hdr10, .hlg, .dolbyVision:
+            return kCVImageBufferColorPrimaries_ITU_R_2020
+        }
+    }
+
+    var transferFunction: CFString {
+        switch self {
+        case .sdr:
+            return kCVImageBufferTransferFunction_ITU_R_709_2
+        case .hdr10:
+            return kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
+        case .hlg, .dolbyVision:
+            return kCVImageBufferTransferFunction_ITU_R_2100_HLG
+        }
+    }
+
+    var yCbCrMatrix: CFString {
+        switch self {
+        case .sdr:
+            return kCVImageBufferYCbCrMatrix_ITU_R_709_2
+        case .hdr10, .hlg, .dolbyVision:
+            return kCVImageBufferYCbCrMatrix_ITU_R_2020
+        }
+    }
+}
+
+@MainActor
+public enum DisplayEnum {
+    case plane
+    // swiftlint:disable identifier_name
+    case vr
+    // swiftlint:enable identifier_name
+    case vrBox
+}
+
+public struct VideoAdaptationState {
+    public struct BitRateState {
+        let bitRate: Int64
+        let time: TimeInterval
+    }
+
+    public let bitRates: [Int64]
+    public let duration: TimeInterval
+    public internal(set) var fps: Float
+    public internal(set) var bitRateStates: [BitRateState]
+    public internal(set) var currentPlaybackTime: TimeInterval = 0
+    public internal(set) var isPlayable: Bool = false
+    public internal(set) var loadedCount: Int = 0
+}
+
+public enum ClockProcessType {
+    case remain
+    case next
+    case dropNextFrame
+    case dropNextPacket
+    case dropGOPPacket
+    case flush
+    case seek
+}
+
+// 缓冲情况
+public protocol CapacityProtocol {
+    var fps: Float { get }
+    var packetCount: Int { get }
+    var frameCount: Int { get }
+    var frameMaxCount: Int { get }
+    var isEndOfFile: Bool { get }
+    var mediaType: AVFoundation.AVMediaType { get }
+}
+
+extension CapacityProtocol {
+    var loadedTime: TimeInterval {
+        TimeInterval(packetCount + frameCount) / TimeInterval(fps)
+    }
+}
+
+public struct LoadingState {
+    public let loadedTime: TimeInterval
+    public let progress: TimeInterval
+    public let packetCount: Int
+    public let frameCount: Int
+    public let isEndOfFile: Bool
+    public let isPlayable: Bool
+    public let isFirst: Bool
+    public let isSeek: Bool
+}
+
+public let KSPlayerErrorDomain = "KSPlayerErrorDomain"
+
+public enum KSPlayerErrorCode: Int {
+    case unknown
+    case formatCreate
+    case formatOpenInput
+    case formatOutputCreate
+    case formatWriteHeader
+    case formatFindStreamInfo
+    case readFrame
+    case codecContextCreate
+    case codecContextSetParam
+    case codecContextFindDecoder
+    case codesContextOpen
+    case codecVideoSendPacket
+    case codecAudioSendPacket
+    case codecVideoReceiveFrame
+    case codecAudioReceiveFrame
+    case auidoSwrInit
+    case codecSubtitleSendPacket
+    case videoTracksUnplayable
+    case subtitleUnEncoding
+    case subtitleUnParse
+    case subtitleFormatUnSupport
+    case subtitleParamsEmpty
+}
+
+extension KSPlayerErrorCode: CustomStringConvertible {
+    public var description: String {
+        switch self {
+        case .formatCreate:
+            return "avformat_alloc_context return nil"
+        case .formatOpenInput:
+            return "avformat can't open input"
+        case .formatOutputCreate:
+            return "avformat_alloc_output_context2 fail"
+        case .formatWriteHeader:
+            return "avformat_write_header fail"
+        case .formatFindStreamInfo:
+            return "avformat_find_stream_info return nil"
+        case .codecContextCreate:
+            return "avcodec_alloc_context3 return nil"
+        case .codecContextSetParam:
+            return "avcodec can't set parameters to context"
+        case .codesContextOpen:
+            return "codesContext can't Open"
+        case .codecVideoReceiveFrame:
+            return "avcodec can't receive video frame"
+        case .codecAudioReceiveFrame:
+            return "avcodec can't receive audio frame"
+        case .videoTracksUnplayable:
+            return "VideoTracks are not even playable."
+        case .codecSubtitleSendPacket:
+            return "avcodec can't decode subtitle"
+        case .subtitleUnEncoding:
+            return "Subtitle encoding format is not supported."
+        case .subtitleUnParse:
+            return "Subtitle parsing error"
+        case .subtitleFormatUnSupport:
+            return "Current subtitle format is not supported"
+        case .subtitleParamsEmpty:
+            return "Subtitle Params is empty"
+        case .auidoSwrInit:
+            return "swr_init swrContext fail"
+        default:
+            return "unknown"
+        }
+    }
+}
+
+extension NSError {
+    convenience init(errorCode: KSPlayerErrorCode, userInfo: [String: Any] = [:]) {
+        var userInfo = userInfo
+        userInfo[NSLocalizedDescriptionKey] = errorCode.description
+        self.init(domain: KSPlayerErrorDomain, code: errorCode.rawValue, userInfo: userInfo)
+    }
+
+    convenience init(description: String) {
+        var userInfo = [String: Any]()
+        userInfo[NSLocalizedDescriptionKey] = description
+        self.init(domain: KSPlayerErrorDomain, code: 0, userInfo: userInfo)
+    }
+}
+
+#if !SWIFT_PACKAGE
+extension Bundle {
+    static let module = Bundle(for: KSPlayerLayer.self).path(forResource: "KSPlayer_KSPlayer", ofType: "bundle").flatMap { Bundle(path: $0) } ?? Bundle.main
+}
+#endif
+
+public enum TimeType {
+    case min
+    case hour
+    case minOrHour
+    case millisecond
+}
+
+public extension TimeInterval {
+    func toString(for type: TimeType) -> String {
+        Int(ceil(self)).toString(for: type)
+    }
+}
+
+public extension Int {
+    func toString(for type: TimeType) -> String {
+        var second = self
+        var min = second / 60
+        second -= min * 60
+        switch type {
+        case .min:
+            return String(format: "%02d:%02d", min, second)
+        case .hour:
+            let hour = min / 60
+            min -= hour * 60
+            return String(format: "%d:%02d:%02d", hour, min, second)
+        case .minOrHour:
+            let hour = min / 60
+            if hour > 0 {
+                min -= hour * 60
+                return String(format: "%d:%02d:%02d", hour, min, second)
+            } else {
+                return String(format: "%02d:%02d", min, second)
+            }
+        case .millisecond:
+            var time = self * 100
+            let millisecond = time % 100
+            time /= 100
+            let sec = time % 60
+            time /= 60
+            let min = time % 60
+            time /= 60
+            let hour = time % 60
+            if hour > 0 {
+                return String(format: "%d:%02d:%02d.%02d", hour, min, sec, millisecond)
+            } else {
+                return String(format: "%02d:%02d.%02d", min, sec, millisecond)
+            }
+        }
+    }
+}
+
+public extension FixedWidthInteger {
+    var kmFormatted: String {
+        Double(self).kmFormatted
+    }
+}
+
+open class AbstractAVIOContext {
+    let bufferSize: Int32
+    let writable: Bool
+    public init(bufferSize: Int32 = 32 * 1024, writable: Bool = false) {
+        self.bufferSize = bufferSize
+        self.writable = writable
+    }
+
+    open func read(buffer _: UnsafePointer<UInt8>?, size: Int32) -> Int32 {
+        size
+    }
+
+    open func write(buffer _: UnsafePointer<UInt8>?, size: Int32) -> Int32 {
+        size
+    }
+
+    /**
+     #define SEEK_SET        0       /* set file offset to offset */
+     #define SEEK_CUR        1       /* set file offset to current plus offset */
+     #define SEEK_END        2       /* set file offset to EOF plus offset */
+     */
+    open func seek(offset: Int64, whence _: Int32) -> Int64 {
+        offset
+    }
+
+    open func fileSize() -> Int64 {
+        -1
+    }
+
+    open func close() {}
+    deinit {}
+}

KSPlayer-main/Sources/KSPlayer/Audio/AudioPlayerView.swift

@@ -0,0 +1,36 @@
+//
+//  AudioPlayerView.swift
+//  VoiceNote
+//
+//  Created by kintan on 2018/8/16.
+//
+
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+open class AudioPlayerView: PlayerView {
+    override public init(frame: CGRect) {
+        super.init(frame: frame)
+        toolBar.timeType = .min
+        toolBar.spacing = 5
+        toolBar.addArrangedSubview(toolBar.playButton)
+        toolBar.addArrangedSubview(toolBar.currentTimeLabel)
+        toolBar.addArrangedSubview(toolBar.timeSlider)
+        toolBar.addArrangedSubview(toolBar.totalTimeLabel)
+        toolBar.playButton.tintColor = UIColor(rgb: 0x2166FF)
+        toolBar.timeSlider.setThumbImage(UIColor(rgb: 0x2980FF).createImage(size: CGSize(width: 2, height: 15)), for: .normal)
+        toolBar.timeSlider.minimumTrackTintColor = UIColor(rgb: 0xC8C7CC)
+        toolBar.timeSlider.maximumTrackTintColor = UIColor(rgb: 0xEDEDED)
+        toolBar.timeSlider.trackHeigt = 7
+        addSubview(toolBar)
+        toolBar.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            toolBar.leadingAnchor.constraint(equalTo: leadingAnchor, constant: 7),
+            toolBar.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -12),
+            toolBar.topAnchor.constraint(equalTo: topAnchor),
+            toolBar.bottomAnchor.constraint(equalTo: bottomAnchor),
+        ])
+    }
+}

KSPlayer-main/Sources/KSPlayer/Core/AppKitExtend.swift

@@ -0,0 +1,594 @@
+//
+//  AppKitExtend.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+
+/// 'NSWindow' is unavailable in Mac Catalyst
+#if !canImport(UIKit)
+import AppKit
+import CoreMedia
+import IOKit.pwr_mgt
+
+public typealias UIApplicationDelegate = NSApplicationDelegate
+public typealias UIApplication = NSApplication
+public typealias UIWindow = NSWindow
+public typealias UIViewController = NSViewController
+public typealias UIColor = NSColor
+public typealias UIStackView = NSStackView
+public typealias UIPanGestureRecognizer = NSPanGestureRecognizer
+public typealias UIGestureRecognizer = NSGestureRecognizer
+public typealias UIGestureRecognizerDelegate = NSGestureRecognizerDelegate
+public typealias UIViewContentMode = ContentMode
+public typealias UIFont = NSFont
+public typealias UIFontDescriptor = NSFontDescriptor
+public typealias UIControl = NSControl
+public typealias UITextField = NSTextField
+public typealias UIImageView = NSImageView
+public typealias UITapGestureRecognizer = NSClickGestureRecognizer
+public typealias UXSlider = NSSlider
+public typealias UITableView = NSTableView
+public typealias UITableViewDelegate = NSTableViewDelegate
+public typealias UITableViewDataSource = NSTableViewDataSource
+public typealias UITouch = NSTouch
+public typealias UIEvent = NSEvent
+public typealias UIButton = KSButton
+public extension UIFontDescriptor.SymbolicTraits {
+    static var traitItalic = italic
+    static var traitBold = bold
+}
+
+extension NSScreen {
+    var scale: CGFloat {
+        backingScaleFactor
+    }
+}
+
+public extension NSClickGestureRecognizer {
+    var numberOfTapsRequired: Int {
+        get {
+            numberOfClicksRequired
+        }
+        set {
+            numberOfClicksRequired = newValue
+        }
+    }
+
+    func require(toFail otherGestureRecognizer: NSClickGestureRecognizer) {
+        buttonMask = otherGestureRecognizer.buttonMask << 1
+    }
+}
+
+public extension NSView {
+    @objc internal var contentMode: UIViewContentMode {
+        get {
+            if let contentsGravity = backingLayer?.contentsGravity {
+                switch contentsGravity {
+                case .resize:
+                    return .scaleToFill
+                case .resizeAspect:
+                    return .scaleAspectFit
+                case .resizeAspectFill:
+                    return .scaleAspectFill
+                default:
+                    return .scaleAspectFit
+                }
+            } else {
+                return .scaleAspectFit
+            }
+        }
+        set {
+            switch newValue {
+            case .scaleToFill:
+                backingLayer?.contentsGravity = .resize
+            case .scaleAspectFit:
+                backingLayer?.contentsGravity = .resizeAspect
+            case .scaleAspectFill:
+                backingLayer?.contentsGravity = .resizeAspectFill
+            case .center:
+                backingLayer?.contentsGravity = .center
+            default:
+                break
+            }
+        }
+    }
+
+    var center: CGPoint {
+        CGPoint(x: frame.midX, y: frame.midY)
+    }
+
+    var alpha: CGFloat {
+        get {
+            alphaValue
+        }
+        set {
+            alphaValue = newValue
+        }
+    }
+
+    var clipsToBounds: Bool {
+        get {
+            if let layer {
+                return layer.masksToBounds
+            } else {
+                return false
+            }
+        }
+        set {
+            backingLayer?.masksToBounds = newValue
+        }
+    }
+
+    class func animate(withDuration duration: TimeInterval, animations: @escaping () -> Void, completion: ((Bool) -> Void)? = nil) {
+        CATransaction.begin()
+        CATransaction.setAnimationDuration(duration)
+        CATransaction.setCompletionBlock {
+            completion?(true)
+        }
+        animations()
+        CATransaction.commit()
+    }
+
+    class func animate(withDuration duration: TimeInterval, animations: @escaping () -> Void) {
+        animate(withDuration: duration, animations: animations, completion: nil)
+    }
+
+    func layoutIfNeeded() {
+        layer?.layoutIfNeeded()
+    }
+
+    func centerRotate(byDegrees: Double) {
+        layer?.position = center
+        layer?.anchorPoint = CGPoint(x: 0.5, y: 0.5)
+        layer?.setAffineTransform(CGAffineTransform(rotationAngle: CGFloat(Double.pi * byDegrees / 180.0)))
+    }
+}
+
+public extension NSImage {
+    convenience init(cgImage: CGImage) {
+        self.init(cgImage: cgImage, size: NSSize.zero)
+    }
+
+    @available(macOS 11.0, *)
+    convenience init?(systemName: String) {
+        self.init(systemSymbolName: systemName, accessibilityDescription: nil)
+    }
+}
+
+extension NSButton {
+    var titleFont: UIFont? {
+        get {
+            font
+        }
+        set {
+            font = newValue
+        }
+    }
+
+    var tintColor: UIColor? {
+        get {
+            contentTintColor
+        }
+        set {
+            contentTintColor = newValue
+        }
+    }
+
+    var backgroundColor: UIColor? {
+        get {
+            if let layer, let cgColor = layer.backgroundColor {
+                return UIColor(cgColor: cgColor)
+            } else {
+                return nil
+            }
+        }
+        set {
+            backingLayer?.backgroundColor = newValue?.cgColor
+        }
+    }
+}
+
+extension NSImageView {
+    var backgroundColor: UIColor? {
+        get {
+            if let layer, let cgColor = layer.backgroundColor {
+                return UIColor(cgColor: cgColor)
+            } else {
+                return nil
+            }
+        }
+        set {
+            backingLayer?.backgroundColor = newValue?.cgColor
+        }
+    }
+}
+
+public extension NSControl {
+    var textAlignment: NSTextAlignment {
+        get {
+            alignment
+        }
+        set {
+            alignment = newValue
+        }
+    }
+
+    var text: String {
+        get {
+            stringValue
+        }
+        set {
+            stringValue = newValue
+        }
+    }
+
+    var attributedText: NSAttributedString? {
+        get {
+            attributedStringValue
+        }
+        set {
+            attributedStringValue = newValue ?? NSAttributedString()
+        }
+    }
+
+    var numberOfLines: Int {
+        get {
+            usesSingleLineMode ? 1 : 0
+        }
+        set {
+            usesSingleLineMode = newValue == 1
+        }
+    }
+}
+
+public extension NSTextContainer {
+    var numberOfLines: Int {
+        get {
+            maximumNumberOfLines
+        }
+        set {
+            maximumNumberOfLines = newValue
+        }
+    }
+}
+
+public extension NSResponder {
+    var next: NSResponder? {
+        nextResponder
+    }
+}
+
+public extension NSSlider {
+    var minimumTrackTintColor: UIColor? {
+        get {
+            trackFillColor
+        }
+        set {
+            trackFillColor = newValue
+        }
+    }
+
+    var maximumTrackTintColor: UIColor? {
+        get {
+            nil
+        }
+        set {}
+    }
+}
+
+public extension NSStackView {
+    var axis: NSUserInterfaceLayoutOrientation {
+        get {
+            orientation
+        }
+        set {
+            orientation = newValue
+        }
+    }
+}
+
+public extension NSGestureRecognizer {
+    func addTarget(_ target: AnyObject, action: Selector) {
+        self.target = target
+        self.action = action
+    }
+}
+
+public extension UIApplication {
+    private static var assertionID = IOPMAssertionID()
+    static var isIdleTimerDisabled = false {
+        didSet {
+            if isIdleTimerDisabled != oldValue {
+                if isIdleTimerDisabled {
+                    _ = IOPMAssertionCreateWithName(kIOPMAssertionTypeNoDisplaySleep as CFString,
+                                                    IOPMAssertionLevel(kIOPMAssertionLevelOn),
+                                                    "KSPlayer is playing video" as CFString,
+                                                    &assertionID)
+                } else {
+                    _ = IOPMAssertionRelease(assertionID)
+                }
+            }
+        }
+    }
+
+    var isIdleTimerDisabled: Bool {
+        get {
+            UIApplication.isIdleTimerDisabled
+        }
+        set {
+            UIApplication.isIdleTimerDisabled = newValue
+        }
+    }
+}
+
+//    @available(*, unavailable, renamed: "UIView.ContentMode")
+@objc public enum ContentMode: Int {
+    case scaleToFill
+
+    case scaleAspectFit // contents scaled to fit with fixed aspect. remainder is transparent
+
+    case scaleAspectFill // contents scaled to fill with fixed aspect. some portion of content may be clipped.
+
+    case redraw // redraw on bounds change (calls -setNeedsDisplay)
+
+    case center // contents remain same size. positioned adjusted.
+
+    case top
+
+    case bottom
+
+    case left
+
+    case right
+
+    case topLeft
+
+    case topRight
+
+    case bottomLeft
+
+    case bottomRight
+}
+
+public extension UIControl {
+    struct State: OptionSet {
+        public var rawValue: UInt
+        public init(rawValue: UInt) { self.rawValue = rawValue }
+        public static var normal = State(rawValue: 1 << 0)
+        public static var highlighted = State(rawValue: 1 << 1)
+        public static var disabled = State(rawValue: 1 << 2)
+        public static var selected = State(rawValue: 1 << 3)
+        public static var focused = State(rawValue: 1 << 4)
+        public static var application = State(rawValue: 1 << 5)
+        public static var reserved = State(rawValue: 1 << 6)
+    }
+}
+
+extension UIControl.State: Hashable {}
+public class UILabel: NSTextField {
+    override init(frame frameRect: CGRect) {
+        super.init(frame: frameRect)
+        alignment = .left
+        isBordered = false
+        isEditable = false
+        isSelectable = false
+        isBezeled = false
+        drawsBackground = false
+        focusRingType = .none
+        textColor = NSColor.white
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+}
+
+public class KSButton: NSButton {
+    private var images = [UIControl.State: UIImage]()
+    private var titles = [UIControl.State: String]()
+    private var titleColors = [State: UIColor]()
+    private var targetActions = [ControlEvents: (AnyObject?, Selector)]()
+
+    override public init(frame frameRect: CGRect) {
+        super.init(frame: frameRect)
+        isBordered = false
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    public var isSelected: Bool = false {
+        didSet {
+            update(state: isSelected ? .selected : .normal)
+        }
+    }
+
+    override public var isEnabled: Bool {
+        didSet {
+            update(state: isEnabled ? .normal : .disabled)
+        }
+    }
+
+    open func setImage(_ image: UIImage?, for state: UIControl.State) {
+        images[state] = image
+        if state == .normal, isEnabled, !isSelected {
+            self.image = image
+        }
+    }
+
+    open func setTitle(_ title: String, for state: UIControl.State) {
+        titles[state] = title
+        if state == .normal, isEnabled, !isSelected {
+            self.title = title
+        }
+    }
+
+    open func setTitleColor(_ titleColor: UIColor?, for state: UIControl.State) {
+        titleColors[state] = titleColor
+        if state == .normal, isEnabled, !isSelected {
+//            self.titleColor = titleColor
+        }
+    }
+
+    private func update(state: UIControl.State) {
+        if let stateImage = images[state] {
+            image = stateImage
+        }
+        if let stateTitle = titles[state] {
+            title = stateTitle
+        }
+    }
+
+    open func addTarget(_ target: AnyObject?, action: Selector, for controlEvents: ControlEvents) {
+        targetActions[controlEvents] = (target, action)
+    }
+
+    open func removeTarget(_: AnyObject?, action _: Selector?, for controlEvents: ControlEvents) {
+        targetActions.removeValue(forKey: controlEvents)
+    }
+
+    override open func updateTrackingAreas() {
+        for trackingArea in trackingAreas {
+            removeTrackingArea(trackingArea)
+        }
+        let trackingArea = NSTrackingArea(rect: bounds, options: [.mouseEnteredAndExited, .mouseMoved, .activeInKeyWindow], owner: self, userInfo: nil)
+        addTrackingArea(trackingArea)
+    }
+
+    override public func mouseDown(with event: NSEvent) {
+        super.mouseDown(with: event)
+        if let (target, action) = targetActions[.touchUpInside] ?? targetActions[.primaryActionTriggered] {
+            _ = target?.perform(action, with: self)
+        }
+    }
+
+    override public func mouseEntered(with event: NSEvent) {
+        super.mouseEntered(with: event)
+        if let (target, action) = targetActions[.mouseExited] {
+            _ = target?.perform(action, with: self)
+        }
+    }
+
+    override public func mouseExited(with event: NSEvent) {
+        super.mouseExited(with: event)
+        if let (target, action) = targetActions[.mouseExited] {
+            _ = target?.perform(action, with: self)
+        }
+    }
+
+    open func sendActions(for controlEvents: ControlEvents) {
+        if let (target, action) = targetActions[controlEvents] {
+            _ = target?.perform(action, with: self)
+        }
+    }
+}
+
+public class KSSlider: NSSlider {
+    weak var delegate: KSSliderDelegate?
+    public var trackHeigt = CGFloat(2)
+    public var isPlayable = false
+    public var isUserInteractionEnabled: Bool = true
+    var tintColor: UIColor?
+    public convenience init() {
+        self.init(frame: .zero)
+    }
+
+    override public init(frame frameRect: CGRect) {
+        super.init(frame: frameRect)
+        target = self
+        action = #selector(progressSliderTouchEnded(_:))
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    @objc private func progressSliderTouchEnded(_ sender: KSSlider) {
+        if isUserInteractionEnabled {
+            delegate?.slider(value: Double(sender.floatValue), event: .touchUpInside)
+        }
+    }
+
+    open func setThumbImage(_: UIImage?, for _: State) {}
+
+    @IBInspectable var maximumValue: Float {
+        get {
+            Float(maxValue)
+        }
+        set {
+            maxValue = Double(newValue)
+        }
+    }
+
+    @IBInspectable var minimumValue: Float {
+        get {
+            Float(minValue)
+        }
+        set {
+            minValue = Double(newValue)
+        }
+    }
+
+    @IBInspectable var value: Float {
+        get {
+            floatValue
+        }
+        set {
+            floatValue = newValue
+        }
+    }
+}
+
+extension UIView {
+    func image() -> UIImage? {
+        guard let rep = bitmapImageRepForCachingDisplay(in: bounds) else {
+            return nil
+        }
+        cacheDisplay(in: bounds, to: rep)
+        let image = NSImage(size: bounds.size)
+        image.addRepresentation(rep)
+        return image
+    }
+}
+
+// todo
+open class UIAlertController: UIViewController {
+    public enum Style: Int {
+        case actionSheet
+        case alert
+    }
+
+    public convenience init(title _: String?, message _: String?, preferredStyle _: UIAlertController.Style) {
+        self.init()
+    }
+
+    var preferredAction: UIAlertAction?
+
+    open func addAction(_: UIAlertAction) {}
+}
+
+open class UIAlertAction: NSObject {
+    public enum Style: Int {
+        case `default`
+        case cancel
+        case destructive
+    }
+
+    public let title: String?
+    public let style: UIAlertAction.Style
+    public private(set) var isEnabled: Bool = false
+    public init(title: String?, style: UIAlertAction.Style, handler _: ((UIAlertAction) -> Void)? = nil) {
+        self.title = title
+        self.style = style
+    }
+}
+
+public extension UIViewController {
+    func present(_: UIViewController, animated _: Bool, completion _: (() -> Void)? = nil) {}
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Core/PlayerToolBar.swift

@@ -0,0 +1,282 @@
+//
+//  PlayerToolBar.swift
+//  Pods
+//
+//  Created by kintan on 16/5/21.
+//
+//
+
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+import AVKit
+
+public class PlayerToolBar: UIStackView {
+    public let srtButton = UIButton()
+    public let timeLabel = UILabel()
+    public let currentTimeLabel = UILabel()
+    public let totalTimeLabel = UILabel()
+    public let playButton = UIButton()
+    public let timeSlider = KSSlider()
+    public let playbackRateButton = UIButton()
+    public let videoSwitchButton = UIButton()
+    public let audioSwitchButton = UIButton()
+    public let definitionButton = UIButton()
+    public let pipButton = UIButton()
+    public var onFocusUpdate: ((_ cofusedItem: UIView) -> Void)?
+    public var timeType = TimeType.minOrHour {
+        didSet {
+            if timeType != oldValue {
+                let currentTimeText = currentTime.toString(for: timeType)
+                let totalTimeText = totalTime.toString(for: timeType)
+                currentTimeLabel.text = currentTimeText
+                totalTimeLabel.text = totalTimeText
+                timeLabel.text = "\(currentTimeText) / \(totalTimeText)"
+            }
+        }
+    }
+
+    public var currentTime: TimeInterval = 0 {
+        didSet {
+            guard !currentTime.isNaN else {
+                currentTime = 0
+                return
+            }
+            if currentTime != oldValue {
+                let text = currentTime.toString(for: timeType)
+                currentTimeLabel.text = text
+                timeLabel.text = "\(text) / \(totalTime.toString(for: timeType))"
+                if isLiveStream {
+                    timeSlider.value = Float(todayInterval)
+                } else {
+                    timeSlider.value = Float(currentTime)
+                }
+            }
+        }
+    }
+
+    lazy var startDateTimeInteral: TimeInterval = {
+        let date = Date()
+        let calendar = Calendar.current
+        let components = calendar.dateComponents([.year, .month, .day], from: date)
+        let startDate = calendar.date(from: components)
+        return startDate?.timeIntervalSince1970 ?? 0
+    }()
+
+    var todayInterval: TimeInterval {
+        Date().timeIntervalSince1970 - startDateTimeInteral
+    }
+
+    public var totalTime: TimeInterval = 0 {
+        didSet {
+            guard !totalTime.isNaN else {
+                totalTime = 0
+                return
+            }
+            if totalTime != oldValue {
+                let text = totalTime.toString(for: timeType)
+                totalTimeLabel.text = text
+                timeLabel.text = "\(currentTime.toString(for: timeType)) / \(text)"
+                timeSlider.maximumValue = Float(totalTime)
+            }
+            if isLiveStream {
+                timeSlider.maximumValue = Float(60 * 60 * 24)
+            }
+        }
+    }
+
+    public var isLiveStream: Bool {
+        totalTime == 0
+    }
+
+    public var isSeekable: Bool = true {
+        didSet {
+            timeSlider.isUserInteractionEnabled = isSeekable
+        }
+    }
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        initUI()
+    }
+
+    @available(*, unavailable)
+    required init(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    private func initUI() {
+        let focusColor = UIColor.white
+        let tintColor = UIColor.gray
+        distribution = .fill
+        currentTimeLabel.textColor = UIColor(rgb: 0x9B9B9B)
+        currentTimeLabel.font = UIFont.monospacedDigitSystemFont(ofSize: 14, weight: .regular)
+        currentTimeLabel.text = 0.toString(for: timeType)
+        totalTimeLabel.textColor = UIColor(rgb: 0x9B9B9B)
+        totalTimeLabel.font = UIFont.monospacedDigitSystemFont(ofSize: 14, weight: .regular)
+        totalTimeLabel.text = 0.toString(for: timeType)
+
+        timeLabel.textColor = UIColor(rgb: 0x9B9B9B)
+        timeLabel.textAlignment = .left
+        timeLabel.font = UIFont.monospacedDigitSystemFont(ofSize: 14, weight: .regular)
+        timeLabel.text = "\(0.toString(for: timeType)) / \(0.toString(for: timeType))"
+        timeSlider.minimumValue = 0
+        #if os(iOS)
+        if #available(macCatalyst 15.0, iOS 15.0, *) {
+            timeSlider.preferredBehavioralStyle = .pad
+            timeSlider.maximumTrackTintColor = focusColor.withAlphaComponent(0.2)
+            timeSlider.minimumTrackTintColor = focusColor
+        }
+        #endif
+        #if !targetEnvironment(macCatalyst)
+        timeSlider.maximumTrackTintColor = focusColor.withAlphaComponent(0.2)
+        timeSlider.minimumTrackTintColor = focusColor
+        #endif
+        playButton.tag = PlayerButtonType.play.rawValue
+        playButton.setTitleColor(focusColor, for: .focused)
+        playButton.setTitleColor(tintColor, for: .normal)
+        playbackRateButton.tag = PlayerButtonType.rate.rawValue
+        playbackRateButton.titleFont = .systemFont(ofSize: 14, weight: .medium)
+        playbackRateButton.setTitleColor(focusColor, for: .focused)
+        playbackRateButton.setTitleColor(tintColor, for: .normal)
+        definitionButton.tag = PlayerButtonType.definition.rawValue
+        definitionButton.titleFont = .systemFont(ofSize: 14, weight: .medium)
+        definitionButton.setTitleColor(focusColor, for: .focused)
+        definitionButton.setTitleColor(tintColor, for: .normal)
+        audioSwitchButton.tag = PlayerButtonType.audioSwitch.rawValue
+        audioSwitchButton.titleFont = .systemFont(ofSize: 14, weight: .medium)
+        audioSwitchButton.setTitleColor(focusColor, for: .focused)
+        audioSwitchButton.setTitleColor(tintColor, for: .normal)
+        videoSwitchButton.tag = PlayerButtonType.videoSwitch.rawValue
+        videoSwitchButton.titleFont = .systemFont(ofSize: 14, weight: .medium)
+        videoSwitchButton.setTitleColor(focusColor, for: .focused)
+        videoSwitchButton.setTitleColor(tintColor, for: .normal)
+        srtButton.tag = PlayerButtonType.srt.rawValue
+        srtButton.titleFont = .systemFont(ofSize: 14, weight: .medium)
+        srtButton.setTitleColor(focusColor, for: .focused)
+        srtButton.setTitleColor(tintColor, for: .normal)
+        pipButton.tag = PlayerButtonType.pictureInPicture.rawValue
+        pipButton.titleFont = .systemFont(ofSize: 14, weight: .medium)
+        pipButton.setTitleColor(focusColor, for: .focused)
+        pipButton.setTitleColor(tintColor, for: .normal)
+        if #available(macOS 11.0, *) {
+            pipButton.setImage(UIImage(systemName: "pip.enter"), for: .normal)
+            pipButton.setImage(UIImage(systemName: "pip.exit"), for: .selected)
+            playButton.setImage(UIImage(systemName: "play.fill"), for: .normal)
+            playButton.setImage(UIImage(systemName: "pause.fill"), for: .selected)
+            srtButton.setImage(UIImage(systemName: "captions.bubble"), for: .normal)
+            definitionButton.setImage(UIImage(systemName: "arrow.up.right.video"), for: .normal)
+            audioSwitchButton.setImage(UIImage(systemName: "waveform"), for: .normal)
+            videoSwitchButton.setImage(UIImage(systemName: "video.badge.ellipsis"), for: .normal)
+            playbackRateButton.setImage(UIImage(systemName: "speedometer"), for: .normal)
+        }
+        playButton.translatesAutoresizingMaskIntoConstraints = false
+        srtButton.translatesAutoresizingMaskIntoConstraints = false
+        translatesAutoresizingMaskIntoConstraints = false
+        if #available(tvOS 14.0, *) {
+            pipButton.isHidden = !AVPictureInPictureController.isPictureInPictureSupported()
+        }
+        #if os(tvOS)
+        srtButton.fillImage()
+        pipButton.fillImage()
+        playButton.fillImage()
+        definitionButton.fillImage()
+        audioSwitchButton.fillImage()
+        videoSwitchButton.fillImage()
+        playbackRateButton.fillImage()
+        playButton.tintColor = tintColor
+        playbackRateButton.tintColor = tintColor
+        definitionButton.tintColor = tintColor
+        audioSwitchButton.tintColor = tintColor
+        videoSwitchButton.tintColor = tintColor
+        srtButton.tintColor = tintColor
+        pipButton.tintColor = tintColor
+        timeSlider.tintColor = tintColor
+        NSLayoutConstraint.activate([
+            playButton.widthAnchor.constraint(equalTo: playButton.heightAnchor),
+            playbackRateButton.widthAnchor.constraint(equalTo: playbackRateButton.heightAnchor),
+            definitionButton.widthAnchor.constraint(equalTo: definitionButton.heightAnchor),
+            audioSwitchButton.widthAnchor.constraint(equalTo: audioSwitchButton.heightAnchor),
+            videoSwitchButton.widthAnchor.constraint(equalTo: videoSwitchButton.heightAnchor),
+            srtButton.widthAnchor.constraint(equalTo: srtButton.heightAnchor),
+            pipButton.widthAnchor.constraint(equalTo: pipButton.heightAnchor),
+            heightAnchor.constraint(equalToConstant: 40),
+        ])
+        #else
+        timeSlider.tintColor = .white
+        playButton.tintColor = .white
+        playbackRateButton.tintColor = .white
+        definitionButton.tintColor = .white
+        audioSwitchButton.tintColor = .white
+        videoSwitchButton.tintColor = .white
+        srtButton.tintColor = .white
+        pipButton.tintColor = .white
+        NSLayoutConstraint.activate([
+            playButton.widthAnchor.constraint(equalToConstant: 30),
+            heightAnchor.constraint(equalToConstant: 49),
+            srtButton.widthAnchor.constraint(equalToConstant: 40),
+        ])
+        #endif
+    }
+
+    override public func addArrangedSubview(_ view: UIView) {
+        super.addArrangedSubview(view)
+        view.isHidden = false
+    }
+
+    #if canImport(UIKit)
+    override open func didUpdateFocus(in context: UIFocusUpdateContext, with coordinator: UIFocusAnimationCoordinator) {
+        super.didUpdateFocus(in: context, with: coordinator)
+        if let nextFocusedItem = context.nextFocusedItem {
+            if let nextFocusedButton = nextFocusedItem as? UIButton {
+                nextFocusedButton.tintColor = nextFocusedButton.titleColor(for: .focused)
+            }
+            if context.previouslyFocusedItem != nil,
+               let nextFocusedView = nextFocusedItem as? UIView
+            {
+                onFocusUpdate?(nextFocusedView)
+            }
+        }
+        if let previouslyFocusedItem = context.previouslyFocusedItem as? UIButton {
+            if previouslyFocusedItem.isSelected {
+                previouslyFocusedItem.tintColor = previouslyFocusedItem.titleColor(for: .selected)
+            } else if previouslyFocusedItem.isHighlighted {
+                previouslyFocusedItem.tintColor = previouslyFocusedItem.titleColor(for: .highlighted)
+            } else {
+                previouslyFocusedItem.tintColor = previouslyFocusedItem.titleColor(for: .normal)
+            }
+        }
+    }
+    #endif
+
+    open func addTarget(_ target: AnyObject?, action: Selector) {
+        playButton.addTarget(target, action: action, for: .primaryActionTriggered)
+        playbackRateButton.addTarget(target, action: action, for: .primaryActionTriggered)
+        definitionButton.addTarget(target, action: action, for: .primaryActionTriggered)
+        audioSwitchButton.addTarget(target, action: action, for: .primaryActionTriggered)
+        videoSwitchButton.addTarget(target, action: action, for: .primaryActionTriggered)
+        srtButton.addTarget(target, action: action, for: .primaryActionTriggered)
+        pipButton.addTarget(target, action: action, for: .primaryActionTriggered)
+    }
+
+    public func reset() {
+        currentTime = 0
+        totalTime = 0
+        playButton.isSelected = false
+        timeSlider.value = 0.0
+        timeSlider.isPlayable = false
+        playbackRateButton.setTitle(NSLocalizedString("speed", comment: ""), for: .normal)
+    }
+}
+
+extension KSOptions {
+    static func image(named: String) -> UIImage? {
+        #if canImport(UIKit)
+        return UIImage(named: named, in: .module, compatibleWith: nil)
+        #else
+        return Bundle.module.image(forResource: named)
+        #endif
+    }
+}

KSPlayer-main/Sources/KSPlayer/Core/PlayerView.swift

@@ -0,0 +1,220 @@
+//
+//  PlayerView.swift
+//  VoiceNote
+//
+//  Created by kintan on 2018/8/16.
+//
+
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+import AVFoundation
+
+public enum PlayerButtonType: Int {
+    case play = 101
+    case pause
+    case back
+    case srt
+    case landscape
+    case replay
+    case lock
+    case rate
+    case definition
+    case pictureInPicture
+    case audioSwitch
+    case videoSwitch
+}
+
+public protocol PlayerControllerDelegate: AnyObject {
+    func playerController(state: KSPlayerState)
+    func playerController(currentTime: TimeInterval, totalTime: TimeInterval)
+    func playerController(finish error: Error?)
+    func playerController(maskShow: Bool)
+    func playerController(action: PlayerButtonType)
+    // `bufferedCount: 0` indicates first time loading
+    func playerController(bufferedCount: Int, consumeTime: TimeInterval)
+    func playerController(seek: TimeInterval)
+}
+
+open class PlayerView: UIView, KSPlayerLayerDelegate, KSSliderDelegate {
+    public typealias ControllerDelegate = PlayerControllerDelegate
+    public var playerLayer: KSPlayerLayer? {
+        didSet {
+            playerLayer?.delegate = self
+        }
+    }
+
+    public weak var delegate: ControllerDelegate?
+    public let toolBar = PlayerToolBar()
+    public let srtControl = SubtitleModel()
+    // Listen to play time change
+    public var playTimeDidChange: ((TimeInterval, TimeInterval) -> Void)?
+    public var backBlock: (() -> Void)?
+    public convenience init() {
+        #if os(macOS)
+        self.init(frame: .zero)
+        #else
+        self.init(frame: CGRect(origin: .zero, size: KSOptions.sceneSize))
+        #endif
+    }
+
+    override public init(frame: CGRect) {
+        super.init(frame: frame)
+        toolBar.timeSlider.delegate = self
+        toolBar.addTarget(self, action: #selector(onButtonPressed(_:)))
+    }
+
+    @available(*, unavailable)
+    public required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    @objc func onButtonPressed(_ button: UIButton) {
+        guard let type = PlayerButtonType(rawValue: button.tag) else { return }
+
+        #if os(macOS)
+        if let menu = button.menu,
+           let item = button.menu?.items.first(where: { $0.state == .on })
+        {
+            menu.popUp(positioning: item,
+                       at: button.frame.origin,
+                       in: self)
+        } else {
+            onButtonPressed(type: type, button: button)
+        }
+        #elseif os(tvOS)
+        onButtonPressed(type: type, button: button)
+        #else
+        if #available(iOS 14.0, *), button.menu != nil {
+            return
+        }
+        onButtonPressed(type: type, button: button)
+        #endif
+    }
+
+    open func onButtonPressed(type: PlayerButtonType, button: UIButton) {
+        var type = type
+        if type == .play, button.isSelected {
+            type = .pause
+        }
+        switch type {
+        case .back:
+            backBlock?()
+        case .play, .replay:
+            play()
+        case .pause:
+            pause()
+        default:
+            break
+        }
+        delegate?.playerController(action: type)
+    }
+
+    #if canImport(UIKit)
+    override open func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        guard let presse = presses.first else {
+            return
+        }
+        switch presse.type {
+        case .playPause:
+            if let playerLayer, playerLayer.state.isPlaying {
+                pause()
+            } else {
+                play()
+            }
+        default: super.pressesBegan(presses, with: event)
+        }
+    }
+    #endif
+    open func play() {
+        becomeFirstResponder()
+        playerLayer?.play()
+        toolBar.playButton.isSelected = true
+    }
+
+    open func pause() {
+        playerLayer?.pause()
+    }
+
+    open func seek(time: TimeInterval, completion: @escaping ((Bool) -> Void)) {
+        playerLayer?.seek(time: time, autoPlay: KSOptions.isSeekedAutoPlay, completion: completion)
+    }
+
+    open func resetPlayer() {
+        pause()
+        totalTime = 0.0
+    }
+
+    open func set(url: URL, options: KSOptions) {
+        srtControl.url = url
+        toolBar.currentTime = 0
+        totalTime = 0
+        playerLayer = KSPlayerLayer(url: url, options: options)
+    }
+
+    // MARK: - KSSliderDelegate
+
+    open func slider(value: Double, event: ControlEvents) {
+        if event == .valueChanged {
+            toolBar.currentTime = value
+        } else if event == .touchUpInside {
+            seek(time: value) { [weak self] _ in
+                self?.delegate?.playerController(seek: value)
+            }
+        }
+    }
+
+    // MARK: - KSPlayerLayerDelegate
+
+    open func player(layer: KSPlayerLayer, state: KSPlayerState) {
+        delegate?.playerController(state: state)
+        if state == .readyToPlay {
+            totalTime = layer.player.duration
+            toolBar.isSeekable = layer.player.seekable
+            toolBar.playButton.isSelected = true
+        } else if state == .playedToTheEnd || state == .paused || state == .error {
+            toolBar.playButton.isSelected = false
+        }
+    }
+
+    open func player(layer _: KSPlayerLayer, currentTime: TimeInterval, totalTime: TimeInterval) {
+        delegate?.playerController(currentTime: currentTime, totalTime: totalTime)
+        playTimeDidChange?(currentTime, totalTime)
+        toolBar.currentTime = currentTime
+        self.totalTime = totalTime
+    }
+
+    open func player(layer _: KSPlayerLayer, finish error: Error?) {
+        delegate?.playerController(finish: error)
+    }
+
+    open func player(layer _: KSPlayerLayer, bufferedCount: Int, consumeTime: TimeInterval) {
+        delegate?.playerController(bufferedCount: bufferedCount, consumeTime: consumeTime)
+    }
+}
+
+public extension PlayerView {
+    var totalTime: TimeInterval {
+        get {
+            toolBar.totalTime
+        }
+        set {
+            toolBar.totalTime = newValue
+        }
+    }
+}
+
+extension UIView {
+    var viewController: UIViewController? {
+        var next = next
+        while next != nil {
+            if let viewController = next as? UIViewController {
+                return viewController
+            }
+            next = next?.next
+        }
+        return nil
+    }
+}

KSPlayer-main/Sources/KSPlayer/Core/UIKitExtend.swift

@@ -0,0 +1,210 @@
+//
+//  File.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+#if canImport(UIKit)
+import UIKit
+
+public class KSSlider: UXSlider {
+    private var tapGesture: UITapGestureRecognizer!
+    private var panGesture: UIPanGestureRecognizer!
+    weak var delegate: KSSliderDelegate?
+    public var trackHeigt = CGFloat(2)
+    public var isPlayable = false
+    override public init(frame: CGRect) {
+        super.init(frame: frame)
+        tapGesture = UITapGestureRecognizer(target: self, action: #selector(actionTapGesture(sender:)))
+        panGesture = UIPanGestureRecognizer(target: self, action: #selector(actionPanGesture(sender:)))
+        addGestureRecognizer(tapGesture)
+        addGestureRecognizer(panGesture)
+        addTarget(self, action: #selector(progressSliderTouchBegan(_:)), for: .touchDown)
+        addTarget(self, action: #selector(progressSliderValueChanged(_:)), for: .valueChanged)
+        addTarget(self, action: #selector(progressSliderTouchEnded(_:)), for: [.touchUpInside, .touchCancel, .touchUpOutside, .primaryActionTriggered])
+    }
+
+    @available(*, unavailable)
+    public required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override open func trackRect(forBounds bounds: CGRect) -> CGRect {
+        var customBounds = super.trackRect(forBounds: bounds)
+        customBounds.origin.y -= trackHeigt / 2
+        customBounds.size.height = trackHeigt
+        return customBounds
+    }
+
+    override open func thumbRect(forBounds bounds: CGRect, trackRect rect: CGRect, value: Float) -> CGRect {
+        let rect = super.thumbRect(forBounds: bounds, trackRect: rect, value: value)
+        return rect.insetBy(dx: -20, dy: -20)
+    }
+
+    // MARK: - handle UI slider actions
+
+    @objc private func progressSliderTouchBegan(_ sender: KSSlider) {
+        guard isPlayable else { return }
+        tapGesture.isEnabled = false
+        panGesture.isEnabled = false
+        value = value
+        delegate?.slider(value: Double(sender.value), event: .touchDown)
+    }
+
+    @objc private func progressSliderValueChanged(_ sender: KSSlider) {
+        guard isPlayable else { return }
+        delegate?.slider(value: Double(sender.value), event: .valueChanged)
+    }
+
+    @objc private func progressSliderTouchEnded(_ sender: KSSlider) {
+        guard isPlayable else { return }
+        tapGesture.isEnabled = true
+        panGesture.isEnabled = true
+        delegate?.slider(value: Double(sender.value), event: .touchUpInside)
+    }
+
+    @objc private func actionTapGesture(sender: UITapGestureRecognizer) {
+        //        guard isPlayable else {
+        //            return
+        //        }
+        let touchPoint = sender.location(in: self)
+        let value = (maximumValue - minimumValue) * Float(touchPoint.x / frame.size.width)
+        self.value = value
+        delegate?.slider(value: Double(value), event: .valueChanged)
+        delegate?.slider(value: Double(value), event: .touchUpInside)
+    }
+
+    @objc private func actionPanGesture(sender: UIPanGestureRecognizer) {
+        //        guard isPlayable else {
+        //            return
+        //        }
+        let touchPoint = sender.location(in: self)
+        let value = (maximumValue - minimumValue) * Float(touchPoint.x / frame.size.width)
+        self.value = value
+        if sender.state == .began {
+            delegate?.slider(value: Double(value), event: .touchDown)
+        } else if sender.state == .ended {
+            delegate?.slider(value: Double(value), event: .touchUpInside)
+        } else {
+            delegate?.slider(value: Double(value), event: .valueChanged)
+        }
+    }
+}
+
+#if os(tvOS)
+public class UXSlider: UIProgressView {
+    @IBInspectable public var value: Float {
+        get {
+            progress * maximumValue
+        }
+        set {
+            progress = newValue / maximumValue
+        }
+    }
+
+    @IBInspectable public var maximumValue: Float = 1 {
+        didSet {
+            refresh()
+        }
+    }
+
+    @IBInspectable public var minimumValue: Float = 0 {
+        didSet {
+            refresh()
+        }
+    }
+
+    open var minimumTrackTintColor: UIColor? {
+        get {
+            progressTintColor
+        }
+        set {
+            progressTintColor = newValue
+        }
+    }
+
+    open var maximumTrackTintColor: UIColor? {
+        get {
+            trackTintColor
+        }
+        set {
+            trackTintColor = newValue
+        }
+    }
+
+    open func setThumbImage(_: UIImage?, for _: UIControl.State) {}
+    open func addTarget(_: Any?, action _: Selector, for _: UIControl.Event) {}
+
+    override public init(frame: CGRect) {
+        super.init(frame: frame)
+        setup()
+    }
+
+    public required init?(coder aDecoder: NSCoder) {
+        super.init(coder: aDecoder)
+        setup()
+    }
+
+    // MARK: - private functions
+
+    private func setup() {
+        refresh()
+    }
+
+    private func refresh() {}
+    open func trackRect(forBounds bounds: CGRect) -> CGRect {
+        bounds
+    }
+
+    open func thumbRect(forBounds bounds: CGRect, trackRect _: CGRect, value _: Float) -> CGRect {
+        bounds
+    }
+}
+#else
+public typealias UXSlider = UISlider
+#endif
+
+public typealias UIViewContentMode = UIView.ContentMode
+extension UIButton {
+    func fillImage() {
+        contentMode = .scaleAspectFill
+        contentHorizontalAlignment = .fill
+        contentVerticalAlignment = .fill
+    }
+
+    var titleFont: UIFont? {
+        get {
+            titleLabel?.font
+        }
+        set {
+            titleLabel?.font = newValue
+        }
+    }
+
+    var title: String? {
+        get {
+            titleLabel?.text
+        }
+        set {
+            titleLabel?.text = newValue
+        }
+    }
+}
+
+extension UIView {
+    func image() -> UIImage? {
+        UIGraphicsBeginImageContextWithOptions(bounds.size, isOpaque, 0.0)
+        defer { UIGraphicsEndImageContext() }
+        if let context = UIGraphicsGetCurrentContext() {
+            layer.render(in: context)
+            let image = UIGraphicsGetImageFromCurrentImageContext()
+            return image
+        }
+        return nil
+    }
+
+    public func centerRotate(byDegrees: Double) {
+        transform = CGAffineTransform(rotationAngle: CGFloat(Double.pi * byDegrees / 180.0))
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Core/UXKit.swift

@@ -0,0 +1,48 @@
+//
+//  File.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+
+extension UIView {
+    var backingLayer: CALayer? {
+        #if !canImport(UIKit)
+        wantsLayer = true
+        #endif
+        return layer
+    }
+
+    var cornerRadius: CGFloat {
+        get {
+            backingLayer?.cornerRadius ?? 0
+        }
+        set {
+            backingLayer?.cornerRadius = newValue
+        }
+    }
+}
+
+@objc public enum ControlEvents: Int {
+    case touchDown
+    case touchUpInside
+    case touchCancel
+    case valueChanged
+    case primaryActionTriggered
+    case mouseEntered
+    case mouseExited
+}
+
+protocol KSSliderDelegate: AnyObject {
+    /**
+     call when slider action trigged
+     - parameter value:      progress
+     - parameter event:       action
+     */
+    func slider(value: Double, event: ControlEvents)
+}

KSPlayer-main/Sources/KSPlayer/Core/Utility.swift

@@ -0,0 +1,850 @@
+//
+//  Utility.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import AVFoundation
+import CryptoKit
+import SwiftUI
+
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+#if canImport(MobileCoreServices)
+import MobileCoreServices.UTType
+#endif
+open class LayerContainerView: UIView {
+    #if canImport(UIKit)
+    override open class var layerClass: AnyClass {
+        CAGradientLayer.self
+    }
+    #else
+    override public init(frame: CGRect) {
+        super.init(frame: frame)
+        layer = CAGradientLayer()
+    }
+
+    @available(*, unavailable)
+    public required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    #endif
+    public var gradientLayer: CAGradientLayer {
+        // swiftlint:disable force_cast
+        layer as! CAGradientLayer
+        // swiftlint:enable force_cast
+    }
+}
+
+class GIFCreator {
+    private let destination: CGImageDestination
+    private let frameProperties: CFDictionary
+    private(set) var firstImage: UIImage?
+    init(savePath: URL, imagesCount: Int) {
+        try? FileManager.default.removeItem(at: savePath)
+        frameProperties = [kCGImagePropertyGIFDictionary: [kCGImagePropertyGIFDelayTime: 0.25]] as CFDictionary
+        destination = CGImageDestinationCreateWithURL(savePath as CFURL, kUTTypeGIF, imagesCount, nil)!
+        let fileProperties = [kCGImagePropertyGIFDictionary: [kCGImagePropertyGIFLoopCount: 0]]
+        CGImageDestinationSetProperties(destination, fileProperties as CFDictionary)
+    }
+
+    func add(image: CGImage) {
+        if firstImage == nil {
+            firstImage = UIImage(cgImage: image)
+        }
+        CGImageDestinationAddImage(destination, image, frameProperties)
+    }
+
+    func finalize() -> Bool {
+        let result = CGImageDestinationFinalize(destination)
+        return result
+    }
+}
+
+public extension String {
+    static func systemClockTime(second: Bool = false) -> String {
+        let date = Date()
+        let calendar = Calendar.current
+        let component = calendar.dateComponents([.hour, .minute, .second], from: date)
+        if second {
+            return String(format: "%02i:%02i:%02i", component.hour!, component.minute!, component.second!)
+        } else {
+            return String(format: "%02i:%02i", component.hour!, component.minute!)
+        }
+    }
+
+    /// 把字符串时间转为对应的秒
+    /// - Parameter fromStr: srt 00:02:52,184 ass 0:30:11.56 vtt 00:00.430
+    /// - Returns: 秒
+    func parseDuration() -> TimeInterval {
+        let scanner = Scanner(string: self)
+
+        var hour: Double = 0
+        if split(separator: ":").count > 2 {
+            hour = scanner.scanDouble() ?? 0.0
+            _ = scanner.scanString(":")
+        }
+
+        let min = scanner.scanDouble() ?? 0.0
+        _ = scanner.scanString(":")
+        let sec = scanner.scanDouble() ?? 0.0
+        if scanner.scanString(",") == nil {
+            _ = scanner.scanString(".")
+        }
+        let millisecond = scanner.scanDouble() ?? 0.0
+        return (hour * 3600.0) + (min * 60.0) + sec + (millisecond / 1000.0)
+    }
+
+    func md5() -> String {
+        Data(utf8).md5()
+    }
+}
+
+public extension UIColor {
+    convenience init?(assColor: String) {
+        var colorString = assColor
+        // 移除颜色字符串中的前缀 &H 和后缀 &
+        if colorString.hasPrefix("&H") {
+            colorString = String(colorString.dropFirst(2))
+        }
+        if colorString.hasSuffix("&") {
+            colorString = String(colorString.dropLast())
+        }
+        if let hex = Scanner(string: colorString).scanInt(representation: .hexadecimal) {
+            self.init(abgr: hex)
+        } else {
+            return nil
+        }
+    }
+
+    convenience init(abgr hex: Int) {
+        let alpha = 1 - (CGFloat(hex >> 24 & 0xFF) / 255)
+        let blue = CGFloat((hex >> 16) & 0xFF)
+        let green = CGFloat((hex >> 8) & 0xFF)
+        let red = CGFloat(hex & 0xFF)
+        self.init(red: red / 255.0, green: green / 255.0, blue: blue / 255.0, alpha: alpha)
+    }
+
+    convenience init(rgb hex: Int, alpha: CGFloat = 1) {
+        let red = CGFloat((hex >> 16) & 0xFF)
+        let green = CGFloat((hex >> 8) & 0xFF)
+        let blue = CGFloat(hex & 0xFF)
+        self.init(red: red / 255.0, green: green / 255.0, blue: blue / 255.0, alpha: alpha)
+    }
+
+    func createImage(size: CGSize = CGSize(width: 1, height: 1)) -> UIImage {
+        #if canImport(UIKit)
+        let rect = CGRect(origin: .zero, size: size)
+        UIGraphicsBeginImageContext(rect.size)
+        let context = UIGraphicsGetCurrentContext()
+        context?.setFillColor(cgColor)
+        context?.fill(rect)
+        let image = UIGraphicsGetImageFromCurrentImageContext()
+        UIGraphicsEndImageContext()
+        return image!
+        #else
+        let image = NSImage(size: size)
+        image.lockFocus()
+        drawSwatch(in: CGRect(origin: .zero, size: size))
+        image.unlockFocus()
+        return image
+        #endif
+    }
+}
+
+extension AVAsset {
+    public func generateGIF(beginTime: TimeInterval, endTime: TimeInterval, interval: Double = 0.2, savePath: URL, progress: @escaping (Double) -> Void, completion: @escaping (Error?) -> Void) {
+        let count = Int(ceil((endTime - beginTime) / interval))
+        let timesM = (0 ..< count).map { NSValue(time: CMTime(seconds: beginTime + Double($0) * interval)) }
+        let imageGenerator = createImageGenerator()
+        let gifCreator = GIFCreator(savePath: savePath, imagesCount: count)
+        var i = 0
+        imageGenerator.generateCGImagesAsynchronously(forTimes: timesM) { _, imageRef, _, result, error in
+            switch result {
+            case .succeeded:
+                guard let imageRef else { return }
+                i += 1
+                gifCreator.add(image: imageRef)
+                progress(Double(i) / Double(count))
+                guard i == count else { return }
+                if gifCreator.finalize() {
+                    completion(nil)
+                } else {
+                    let error = NSError(domain: AVFoundationErrorDomain, code: -1, userInfo: [NSLocalizedDescriptionKey: "Generate Gif Failed!"])
+                    completion(error)
+                }
+            case .failed:
+                if let error {
+                    completion(error)
+                }
+            case .cancelled:
+                break
+            @unknown default:
+                break
+            }
+        }
+    }
+
+    private func createComposition(beginTime: TimeInterval, endTime: TimeInterval) async throws -> AVMutableComposition {
+        let compositionM = AVMutableComposition()
+        let audioTrackM = compositionM.addMutableTrack(withMediaType: .audio, preferredTrackID: kCMPersistentTrackID_Invalid)
+        let videoTrackM = compositionM.addMutableTrack(withMediaType: .video, preferredTrackID: kCMPersistentTrackID_Invalid)
+        let cutRange = CMTimeRange(start: beginTime, end: endTime)
+        #if os(xrOS)
+        if let assetAudioTrack = try await loadTracks(withMediaType: .audio).first {
+            try audioTrackM?.insertTimeRange(cutRange, of: assetAudioTrack, at: .zero)
+        }
+        if let assetVideoTrack = try await loadTracks(withMediaType: .video).first {
+            try videoTrackM?.insertTimeRange(cutRange, of: assetVideoTrack, at: .zero)
+        }
+        #else
+        if let assetAudioTrack = tracks(withMediaType: .audio).first {
+            try audioTrackM?.insertTimeRange(cutRange, of: assetAudioTrack, at: .zero)
+        }
+        if let assetVideoTrack = tracks(withMediaType: .video).first {
+            try videoTrackM?.insertTimeRange(cutRange, of: assetVideoTrack, at: .zero)
+        }
+        #endif
+        return compositionM
+    }
+
+    func createExportSession(beginTime: TimeInterval, endTime: TimeInterval) async throws -> AVAssetExportSession? {
+        let compositionM = try await createComposition(beginTime: beginTime, endTime: endTime)
+        guard let exportSession = AVAssetExportSession(asset: compositionM, presetName: "") else {
+            return nil
+        }
+        exportSession.shouldOptimizeForNetworkUse = true
+        exportSession.outputFileType = .mp4
+        return exportSession
+    }
+
+    func exportMp4(beginTime: TimeInterval, endTime: TimeInterval, outputURL: URL, progress: @escaping (Double) -> Void, completion: @escaping (Result<URL, Error>) -> Void) throws {
+        try FileManager.default.removeItem(at: outputURL)
+        Task {
+            guard let exportSession = try await createExportSession(beginTime: beginTime, endTime: endTime) else { return }
+            exportSession.outputURL = outputURL
+            await exportSession.export()
+            switch exportSession.status {
+            case .exporting:
+                progress(Double(exportSession.progress))
+            case .completed:
+                progress(1)
+                completion(.success(outputURL))
+                exportSession.cancelExport()
+            case .failed:
+                if let error = exportSession.error {
+                    completion(.failure(error))
+                }
+                exportSession.cancelExport()
+            case .cancelled:
+                exportSession.cancelExport()
+            case .unknown, .waiting:
+                break
+            @unknown default:
+                break
+            }
+        }
+    }
+
+    func exportMp4(beginTime: TimeInterval, endTime: TimeInterval, progress: @escaping (Double) -> Void, completion: @escaping (Result<URL, Error>) -> Void) throws {
+        guard var exportURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return }
+        exportURL = exportURL.appendingPathExtension("Export.mp4")
+        try exportMp4(beginTime: beginTime, endTime: endTime, outputURL: exportURL, progress: progress, completion: completion)
+    }
+}
+
+extension UIImageView {
+    func image(url: URL?) {
+        guard let url else { return }
+        DispatchQueue.global().async { [weak self] in
+            guard let self else { return }
+            let data = try? Data(contentsOf: url)
+            let image = data.flatMap { UIImage(data: $0) }
+            DispatchQueue.main.async { [weak self] in
+                guard let self else { return }
+                self.image = image
+            }
+        }
+    }
+}
+
+#if canImport(UIKit)
+extension AVPlayer.HDRMode {
+    var dynamicRange: DynamicRange {
+        if contains(.dolbyVision) {
+            return .dolbyVision
+        } else if contains(.hlg) {
+            return .hlg
+        } else if contains(.hdr10) {
+            return .hdr10
+        } else {
+            return .sdr
+        }
+    }
+}
+#endif
+
+public extension FourCharCode {
+    var string: String {
+        let cString: [CChar] = [
+            CChar(self >> 24 & 0xFF),
+            CChar(self >> 16 & 0xFF),
+            CChar(self >> 8 & 0xFF),
+            CChar(self & 0xFF),
+            0,
+        ]
+        return String(cString: cString)
+    }
+}
+
+extension CMTime {
+    init(seconds: TimeInterval) {
+        self.init(seconds: seconds, preferredTimescale: Int32(USEC_PER_SEC))
+    }
+}
+
+extension CMTimeRange {
+    init(start: TimeInterval, end: TimeInterval) {
+        self.init(start: CMTime(seconds: start), end: CMTime(seconds: end))
+    }
+}
+
+extension CGPoint {
+    var reverse: CGPoint {
+        CGPoint(x: y, y: x)
+    }
+}
+
+extension CGSize {
+    var reverse: CGSize {
+        CGSize(width: height, height: width)
+    }
+
+    var toPoint: CGPoint {
+        CGPoint(x: width, y: height)
+    }
+
+    var isHorizonal: Bool {
+        width > height
+    }
+}
+
+func * (left: CGSize, right: CGFloat) -> CGSize {
+    CGSize(width: left.width * right, height: left.height * right)
+}
+
+func * (left: CGPoint, right: CGFloat) -> CGPoint {
+    CGPoint(x: left.x * right, y: left.y * right)
+}
+
+func * (left: CGRect, right: CGFloat) -> CGRect {
+    CGRect(origin: left.origin * right, size: left.size * right)
+}
+
+func - (left: CGSize, right: CGSize) -> CGSize {
+    CGSize(width: left.width - right.width, height: left.height - right.height)
+}
+
+@inline(__always)
+@preconcurrency
+// @MainActor
+public func runOnMainThread(block: @escaping () -> Void) {
+    if Thread.isMainThread {
+        block()
+    } else {
+        Task {
+            await MainActor.run(body: block)
+        }
+    }
+}
+
+public extension URL {
+    var isMovie: Bool {
+        if let typeID = try? resourceValues(forKeys: [.typeIdentifierKey]).typeIdentifier as CFString? {
+            return UTTypeConformsTo(typeID, kUTTypeMovie)
+        }
+        return false
+    }
+
+    var isAudio: Bool {
+        if let typeID = try? resourceValues(forKeys: [.typeIdentifierKey]).typeIdentifier as CFString? {
+            return UTTypeConformsTo(typeID, kUTTypeAudio)
+        }
+        return false
+    }
+
+    var isSubtitle: Bool {
+        ["ass", "srt", "ssa", "vtt"].contains(pathExtension.lowercased())
+    }
+
+    var isPlaylist: Bool {
+        ["cue", "m3u", "pls"].contains(pathExtension.lowercased())
+    }
+
+    func parsePlaylist() async throws -> [(String, URL, [String: String])] {
+        let data = try await data()
+        var entrys = data.parsePlaylist()
+        for i in 0 ..< entrys.count {
+            var entry = entrys[i]
+            if entry.1.path.hasPrefix("./") {
+                entry.1 = deletingLastPathComponent().appendingPathComponent(entry.1.path).standardized
+                entrys[i] = entry
+            }
+        }
+        return entrys
+    }
+
+    func data(userAgent: String? = nil) async throws -> Data {
+        if isFileURL {
+            return try Data(contentsOf: self)
+        } else {
+            var request = URLRequest(url: self)
+            if let userAgent {
+                request.addValue(userAgent, forHTTPHeaderField: "User-Agent")
+            }
+            let (data, _) = try await URLSession.shared.data(for: request)
+            return data
+        }
+    }
+
+    func download(userAgent: String? = nil, completion: @escaping ((String, URL) -> Void)) {
+        var request = URLRequest(url: self)
+        if let userAgent {
+            request.addValue(userAgent, forHTTPHeaderField: "User-Agent")
+        }
+        let task = URLSession.shared.downloadTask(with: request) { url, response, _ in
+            guard let url, let response else {
+                return
+            }
+            // 下载的临时文件要马上就用。不然可能会马上被清空
+            completion(response.suggestedFilename ?? url.lastPathComponent, url)
+        }
+        task.resume()
+    }
+}
+
+public extension Data {
+    func parsePlaylist() -> [(String, URL, [String: String])] {
+        guard let string = String(data: self, encoding: .utf8) else {
+            return []
+        }
+        let scanner = Scanner(string: string)
+        var entrys = [(String, URL, [String: String])]()
+        guard let symbol = scanner.scanUpToCharacters(from: .newlines), symbol.contains("#EXTM3U") else {
+            return []
+        }
+        while !scanner.isAtEnd {
+            if let entry = scanner.parseM3U() {
+                entrys.append(entry)
+            }
+        }
+        return entrys
+    }
+
+    func md5() -> String {
+        let digestData = Insecure.MD5.hash(data: self)
+        return String(digestData.map { String(format: "%02hhx", $0) }.joined().prefix(32))
+    }
+}
+
+extension Scanner {
+    /*
+     #EXTINF:-1 tvg-id="ExampleTV.ua" tvg-logo="https://image.com" group-title="test test", Example TV (720p) [Not 24/7]
+     #EXTVLCOPT:http-referrer=http://example.com/
+     #EXTVLCOPT:http-user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64)
+     http://example.com/stream.m3u8
+     */
+    func parseM3U() -> (String, URL, [String: String])? {
+        if scanString("#EXTINF:") == nil {
+            _ = scanUpToCharacters(from: .newlines)
+            return nil
+        }
+        var extinf = [String: String]()
+        if let duration = scanDouble() {
+            extinf["duration"] = String(duration)
+        }
+        while scanString(",") == nil {
+            let key = scanUpToString("=")
+            _ = scanString("=\"")
+            let value = scanUpToString("\"")
+            _ = scanString("\"")
+            if let key, let value {
+                extinf[key] = value
+            }
+        }
+        let title = scanUpToCharacters(from: .newlines)
+        while scanString("#EXT") != nil {
+            if scanString("VLCOPT:") != nil {
+                let key = scanUpToString("=")
+                _ = scanString("=")
+                let value = scanUpToCharacters(from: .newlines)
+                if let key, let value {
+                    extinf[key] = value
+                }
+            } else {
+                let key = scanUpToString(":")
+                _ = scanString(":")
+                let value = scanUpToCharacters(from: .newlines)
+                if let key, let value {
+                    extinf[key] = value
+                }
+            }
+        }
+        let urlString = scanUpToCharacters(from: .newlines)
+        if let urlString, let url = URL(string: urlString) {
+            return (title ?? url.lastPathComponent, url, extinf)
+        }
+        return nil
+    }
+}
+
+extension HTTPURLResponse {
+    var filename: String? {
+        let httpFileName = "attachment; filename="
+        if var disposition = value(forHTTPHeaderField: "Content-Disposition"), disposition.hasPrefix(httpFileName) {
+            disposition.removeFirst(httpFileName.count)
+            return disposition
+        }
+        return nil
+    }
+}
+
+public extension Double {
+    var kmFormatted: String {
+        //        return .formatted(.number.notation(.compactName))
+        if self >= 1_000_000 {
+            return String(format: "%.1fM", locale: Locale.current, self / 1_000_000)
+            //                .replacingOccurrences(of: ".0", with: "")
+        } else if self >= 10000, self <= 999_999 {
+            return String(format: "%.1fK", locale: Locale.current, self / 1000)
+            //                .replacingOccurrences(of: ".0", with: "")
+        } else {
+            return String(format: "%.0f", locale: Locale.current, self)
+        }
+    }
+}
+
+extension TextAlignment: RawRepresentable {
+    public typealias RawValue = String
+    public init?(rawValue: RawValue) {
+        if rawValue == "Leading" {
+            self = .leading
+        } else if rawValue == "Center" {
+            self = .center
+        } else if rawValue == "Trailing" {
+            self = .trailing
+        } else {
+            return nil
+        }
+    }
+
+    public var rawValue: RawValue {
+        switch self {
+        case .leading:
+            return "Leading"
+        case .center:
+            return "Center"
+        case .trailing:
+            return "Trailing"
+        }
+    }
+}
+
+extension TextAlignment: Identifiable {
+    public var id: Self { self }
+}
+
+extension HorizontalAlignment: Hashable, RawRepresentable {
+    public typealias RawValue = String
+    public init?(rawValue: RawValue) {
+        if rawValue == "Leading" {
+            self = .leading
+        } else if rawValue == "Center" {
+            self = .center
+        } else if rawValue == "Trailing" {
+            self = .trailing
+        } else {
+            return nil
+        }
+    }
+
+    public var rawValue: RawValue {
+        switch self {
+        case .leading:
+            return "Leading"
+        case .center:
+            return "Center"
+        case .trailing:
+            return "Trailing"
+        default:
+            return ""
+        }
+    }
+}
+
+extension HorizontalAlignment: Identifiable {
+    public var id: Self { self }
+}
+
+extension VerticalAlignment: Hashable, RawRepresentable {
+    public typealias RawValue = String
+    public init?(rawValue: RawValue) {
+        if rawValue == "Top" {
+            self = .top
+        } else if rawValue == "Center" {
+            self = .center
+        } else if rawValue == "Bottom" {
+            self = .bottom
+        } else {
+            return nil
+        }
+    }
+
+    public var rawValue: RawValue {
+        switch self {
+        case .top:
+            return "Top"
+        case .center:
+            return "Center"
+        case .bottom:
+            return "Bottom"
+        default:
+            return ""
+        }
+    }
+}
+
+extension VerticalAlignment: Identifiable {
+    public var id: Self { self }
+}
+
+extension Color: RawRepresentable {
+    public typealias RawValue = String
+    public init?(rawValue: RawValue) {
+        guard let data = Data(base64Encoded: rawValue) else {
+            self = .black
+            return
+        }
+
+        do {
+            let color = try NSKeyedUnarchiver.unarchivedObject(ofClass: UIColor.self, from: data) ?? .black
+            self = Color(color)
+        } catch {
+            self = .black
+        }
+    }
+
+    public var rawValue: RawValue {
+        do {
+            if #available(macOS 11.0, iOS 14, tvOS 14, *) {
+                let data = try NSKeyedArchiver.archivedData(withRootObject: UIColor(self), requiringSecureCoding: false) as Data
+                return data.base64EncodedString()
+            } else {
+                return ""
+            }
+        } catch {
+            return ""
+        }
+    }
+}
+
+extension Array: RawRepresentable where Element: Codable {
+    public init?(rawValue: String) {
+        guard let data = rawValue.data(using: .utf8),
+              let result = try? JSONDecoder().decode([Element].self, from: data)
+        else { return nil }
+        self = result
+    }
+
+    public var rawValue: String {
+        guard let data = try? JSONEncoder().encode(self),
+              let result = String(data: data, encoding: .utf8)
+        else {
+            return "[]"
+        }
+        return result
+    }
+}
+
+extension Date: RawRepresentable {
+    public typealias RawValue = String
+    public init?(rawValue: RawValue) {
+        guard let data = rawValue.data(using: .utf8),
+              let date = try? JSONDecoder().decode(Date.self, from: data)
+        else {
+            return nil
+        }
+        self = date
+    }
+
+    public var rawValue: RawValue {
+        guard let data = try? JSONEncoder().encode(self),
+              let result = String(data: data, encoding: .utf8)
+        else {
+            return ""
+        }
+        return result
+    }
+}
+
+extension CGImage {
+    static func combine(images: [(CGRect, CGImage)]) -> CGImage? {
+        if images.isEmpty {
+            return nil
+        }
+        if images.count == 1 {
+            return images[0].1
+        }
+        var width = 0
+        var height = 0
+        for (rect, _) in images {
+            width = max(width, Int(rect.maxX))
+            height = max(height, Int(rect.maxY))
+        }
+        let bitsPerComponent = 8
+        // RGBA(的bytes) * bitsPerComponent *width
+        let bytesPerRow = 4 * 8 * bitsPerComponent * width
+        return autoreleasepool {
+            let context = CGContext(data: nil, width: width, height: height, bitsPerComponent: bitsPerComponent, bytesPerRow: bytesPerRow, space: CGColorSpaceCreateDeviceRGB(), bitmapInfo: CGImageAlphaInfo.premultipliedLast.rawValue)
+            guard let context else {
+                return nil
+            }
+            //            context.clear(CGRect(origin: .zero, size: CGSize(width: width, height: height)))
+            for (rect, cgImage) in images {
+                context.draw(cgImage, in: CGRect(x: rect.origin.x, y: CGFloat(height) - rect.maxY, width: rect.width, height: rect.height))
+            }
+            let cgImage = context.makeImage()
+            return cgImage
+        }
+    }
+
+    func data(type: AVFileType, quality: CGFloat) -> Data? {
+        autoreleasepool {
+            guard let mutableData = CFDataCreateMutable(nil, 0),
+                  let destination = CGImageDestinationCreateWithData(mutableData, type.rawValue as CFString, 1, nil)
+            else {
+                return nil
+            }
+            CGImageDestinationAddImage(destination, self, [kCGImageDestinationLossyCompressionQuality: quality] as CFDictionary)
+            guard CGImageDestinationFinalize(destination) else {
+                return nil
+            }
+            return mutableData as Data
+        }
+    }
+
+    static func make(rgbData: UnsafePointer<UInt8>, linesize: Int, width: Int, height: Int, isAlpha: Bool = false) -> CGImage? {
+        let colorSpace = CGColorSpaceCreateDeviceRGB()
+        let bitmapInfo: CGBitmapInfo = isAlpha ? CGBitmapInfo(rawValue: CGImageAlphaInfo.last.rawValue) : CGBitmapInfo.byteOrderMask
+        guard let data = CFDataCreate(kCFAllocatorDefault, rgbData, linesize * height), let provider = CGDataProvider(data: data) else {
+            return nil
+        }
+        // swiftlint:disable line_length
+        return CGImage(width: width, height: height, bitsPerComponent: 8, bitsPerPixel: isAlpha ? 32 : 24, bytesPerRow: linesize, space: colorSpace, bitmapInfo: bitmapInfo, provider: provider, decode: nil, shouldInterpolate: false, intent: .defaultIntent)
+        // swiftlint:enable line_length
+    }
+}
+
+public extension AVFileType {
+    static let png = AVFileType(kUTTypePNG as String)
+    static let jpeg2000 = AVFileType(kUTTypeJPEG2000 as String)
+}
+
+extension URL: Identifiable {
+    public var id: Self { self }
+}
+
+extension String: Identifiable {
+    public var id: Self { self }
+}
+
+extension Float: Identifiable {
+    public var id: Self { self }
+}
+
+public enum Either<Left, Right> {
+    case left(Left), right(Right)
+}
+
+public extension Either {
+    init(_ left: Left, or _: Right.Type) { self = .left(left) }
+    init(_ left: Left) { self = .left(left) }
+    init(_ right: Right) { self = .right(right) }
+}
+
+/// Allows to "box" another value.
+final class Box<T> {
+    let value: T
+
+    init(_ value: T) {
+        self.value = value
+    }
+}
+
+extension Array {
+    init(tuple: (Element, Element, Element, Element, Element, Element, Element, Element)) {
+        self.init([tuple.0, tuple.1, tuple.2, tuple.3, tuple.4, tuple.5, tuple.6, tuple.7])
+    }
+
+    init(tuple: (Element, Element, Element, Element)) {
+        self.init([tuple.0, tuple.1, tuple.2, tuple.3])
+    }
+
+    var tuple8: (Element, Element, Element, Element, Element, Element, Element, Element) {
+        (self[0], self[1], self[2], self[3], self[4], self[5], self[6], self[7])
+    }
+
+    var tuple4: (Element, Element, Element, Element) {
+        (self[0], self[1], self[2], self[3])
+    }
+
+    // 归并排序才是稳定排序。系统默认是快排
+    func mergeSortBottomUp(isOrderedBefore: (Element, Element) -> Bool) -> [Element] {
+        let n = count
+        var z = [self, self] // the two working arrays
+        var d = 0 // z[d] is used for reading, z[1 - d] for writing
+        var width = 1
+        while width < n {
+            var i = 0
+            while i < n {
+                var j = i
+                var l = i
+                var r = i + width
+
+                let lmax = Swift.min(l + width, n)
+                let rmax = Swift.min(r + width, n)
+
+                while l < lmax, r < rmax {
+                    if isOrderedBefore(z[d][l], z[d][r]) {
+                        z[1 - d][j] = z[d][l]
+                        l += 1
+                    } else {
+                        z[1 - d][j] = z[d][r]
+                        r += 1
+                    }
+                    j += 1
+                }
+                while l < lmax {
+                    z[1 - d][j] = z[d][l]
+                    j += 1
+                    l += 1
+                }
+                while r < rmax {
+                    z[1 - d][j] = z[d][r]
+                    j += 1
+                    r += 1
+                }
+
+                i += width * 2
+            }
+
+            width *= 2 // in each step, the subarray to merge becomes larger
+            d = 1 - d // swap active array
+        }
+        return z[d]
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/AVFFmpegExtension.swift

@@ -0,0 +1,550 @@
+import CoreMedia
+import FFmpegKit
+import Libavcodec
+import Libavfilter
+import Libavformat
+
+func toDictionary(_ native: OpaquePointer?) -> [String: String] {
+    var dict = [String: String]()
+    if let native {
+        var prev: UnsafeMutablePointer<AVDictionaryEntry>?
+        while let tag = av_dict_get(native, "", prev, AV_DICT_IGNORE_SUFFIX) {
+            dict[String(cString: tag.pointee.key)] = String(cString: tag.pointee.value)
+            prev = tag
+        }
+    }
+    return dict
+}
+
+extension UnsafeMutablePointer where Pointee == AVCodecContext {
+    func getFormat() {
+        pointee.get_format = { ctx, fmt -> AVPixelFormat in
+            guard let fmt, let ctx else {
+                return AV_PIX_FMT_NONE
+            }
+            var i = 0
+            while fmt[i] != AV_PIX_FMT_NONE {
+                if fmt[i] == AV_PIX_FMT_VIDEOTOOLBOX {
+                    let deviceCtx = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VIDEOTOOLBOX)
+                    if deviceCtx == nil {
+                        break
+                    }
+                    // 只要有hw_device_ctx就可以了。不需要hw_frames_ctx
+                    ctx.pointee.hw_device_ctx = deviceCtx
+//                    var framesCtx = av_hwframe_ctx_alloc(deviceCtx)
+//                    if let framesCtx {
+//                        let framesCtxData = UnsafeMutableRawPointer(framesCtx.pointee.data)
+//                            .bindMemory(to: AVHWFramesContext.self, capacity: 1)
+//                        framesCtxData.pointee.format = AV_PIX_FMT_VIDEOTOOLBOX
+//                        framesCtxData.pointee.sw_format = ctx.pointee.pix_fmt.bestPixelFormat
+//                        framesCtxData.pointee.width = ctx.pointee.width
+//                        framesCtxData.pointee.height = ctx.pointee.height
+//                    }
+//                    if av_hwframe_ctx_init(framesCtx) != 0 {
+//                        av_buffer_unref(&framesCtx)
+//                        break
+//                    }
+//                    ctx.pointee.hw_frames_ctx = framesCtx
+                    return fmt[i]
+                }
+                i += 1
+            }
+            return fmt[0]
+        }
+    }
+}
+
+extension AVCodecContext {
+    func parseASSEvents() -> Int {
+        var subtitleASSEvents = 10
+        if subtitle_header_size > 0, let events = String(data: Data(bytes: subtitle_header, count: Int(subtitle_header_size)), encoding: .ascii), let eventsRange = events.range(of: "[Events]") {
+            var range = eventsRange.upperBound ..< events.endIndex
+            if let eventsRange = events.range(of: "Format:", options: String.CompareOptions(rawValue: 0), range: range, locale: nil) {
+                range = eventsRange.upperBound ..< events.endIndex
+                if let eventsRange = events.rangeOfCharacter(from: CharacterSet.newlines, options: String.CompareOptions(rawValue: 0), range: range) {
+                    range = range.lowerBound ..< eventsRange.upperBound
+                    let format = events[range]
+                    let fields = format.components(separatedBy: ",")
+                    let text = fields.last
+                    if let text, text.trimmingCharacters(in: .whitespacesAndNewlines) == "Text" {
+                        subtitleASSEvents = fields.count
+                    }
+                }
+            }
+        }
+        return subtitleASSEvents
+    }
+}
+
+extension AVCodecParameters {
+    mutating func createContext(options: KSOptions?) throws -> UnsafeMutablePointer<AVCodecContext> {
+        var codecContextOption = avcodec_alloc_context3(nil)
+        guard let codecContext = codecContextOption else {
+            throw NSError(errorCode: .codecContextCreate)
+        }
+        var result = avcodec_parameters_to_context(codecContext, &self)
+        guard result == 0 else {
+            avcodec_free_context(&codecContextOption)
+            throw NSError(errorCode: .codecContextSetParam, avErrorCode: result)
+        }
+        if codec_type == AVMEDIA_TYPE_VIDEO, options?.hardwareDecode ?? false {
+            codecContext.getFormat()
+        }
+        guard let codec = avcodec_find_decoder(codecContext.pointee.codec_id) else {
+            avcodec_free_context(&codecContextOption)
+            throw NSError(errorCode: .codecContextFindDecoder, avErrorCode: result)
+        }
+        codecContext.pointee.codec_id = codec.pointee.id
+        codecContext.pointee.flags2 |= AV_CODEC_FLAG2_FAST
+        if options?.codecLowDelay == true {
+            codecContext.pointee.flags |= AV_CODEC_FLAG_LOW_DELAY
+        }
+        var avOptions = options?.decoderOptions.avOptions
+        if let options {
+            var lowres = options.lowres
+            if lowres > codec.pointee.max_lowres {
+                lowres = codec.pointee.max_lowres
+            }
+            codecContext.pointee.lowres = Int32(lowres)
+            if lowres > 0 {
+                av_dict_set_int(&avOptions, "lowres", Int64(lowres), 0)
+            }
+        }
+        result = avcodec_open2(codecContext, codec, &avOptions)
+        av_dict_free(&avOptions)
+        guard result == 0 else {
+            avcodec_free_context(&codecContextOption)
+            throw NSError(errorCode: .codesContextOpen, avErrorCode: result)
+        }
+        return codecContext
+    }
+}
+
+/**
+ Clients who specify AVVideoColorPropertiesKey must specify a color primary, transfer function, and Y'CbCr matrix.
+ Most clients will want to specify HD, which consists of:
+
+ AVVideoColorPrimaries_ITU_R_709_2
+ AVVideoTransferFunction_ITU_R_709_2
+ AVVideoYCbCrMatrix_ITU_R_709_2
+
+ If you require SD colorimetry use:
+
+ AVVideoColorPrimaries_SMPTE_C
+ AVVideoTransferFunction_ITU_R_709_2
+ AVVideoYCbCrMatrix_ITU_R_601_4
+
+ If you require wide gamut HD colorimetry, you can use:
+
+ AVVideoColorPrimaries_P3_D65
+ AVVideoTransferFunction_ITU_R_709_2
+ AVVideoYCbCrMatrix_ITU_R_709_2
+
+ If you require 10-bit wide gamut HD colorimetry, you can use:
+
+ AVVideoColorPrimaries_P3_D65
+ AVVideoTransferFunction_ITU_R_2100_HLG
+ AVVideoYCbCrMatrix_ITU_R_709_2
+ */
+extension AVColorPrimaries {
+    var colorPrimaries: CFString? {
+        switch self {
+        case AVCOL_PRI_BT470BG:
+            return kCVImageBufferColorPrimaries_EBU_3213
+        case AVCOL_PRI_SMPTE170M:
+            return kCVImageBufferColorPrimaries_SMPTE_C
+        case AVCOL_PRI_BT709:
+            return kCVImageBufferColorPrimaries_ITU_R_709_2
+        case AVCOL_PRI_BT2020:
+            return kCVImageBufferColorPrimaries_ITU_R_2020
+        default:
+            return CVColorPrimariesGetStringForIntegerCodePoint(Int32(rawValue))?.takeUnretainedValue()
+        }
+    }
+}
+
+extension AVColorTransferCharacteristic {
+    var transferFunction: CFString? {
+        switch self {
+        case AVCOL_TRC_SMPTE2084:
+            return kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
+        case AVCOL_TRC_BT2020_10, AVCOL_TRC_BT2020_12:
+            return kCVImageBufferTransferFunction_ITU_R_2020
+        case AVCOL_TRC_BT709:
+            return kCVImageBufferTransferFunction_ITU_R_709_2
+        case AVCOL_TRC_SMPTE240M:
+            return kCVImageBufferTransferFunction_SMPTE_240M_1995
+        case AVCOL_TRC_LINEAR:
+            return kCVImageBufferTransferFunction_Linear
+        case AVCOL_TRC_SMPTE428:
+            return kCVImageBufferTransferFunction_SMPTE_ST_428_1
+        case AVCOL_TRC_ARIB_STD_B67:
+            return kCVImageBufferTransferFunction_ITU_R_2100_HLG
+        case AVCOL_TRC_GAMMA22, AVCOL_TRC_GAMMA28:
+            return kCVImageBufferTransferFunction_UseGamma
+        default:
+            return CVTransferFunctionGetStringForIntegerCodePoint(Int32(rawValue))?.takeUnretainedValue()
+        }
+    }
+}
+
+extension AVColorSpace {
+    var ycbcrMatrix: CFString? {
+        switch self {
+        case AVCOL_SPC_BT709:
+            return kCVImageBufferYCbCrMatrix_ITU_R_709_2
+        case AVCOL_SPC_BT470BG, AVCOL_SPC_SMPTE170M:
+            return kCVImageBufferYCbCrMatrix_ITU_R_601_4
+        case AVCOL_SPC_SMPTE240M:
+            return kCVImageBufferYCbCrMatrix_SMPTE_240M_1995
+        case AVCOL_SPC_BT2020_CL, AVCOL_SPC_BT2020_NCL:
+            return kCVImageBufferYCbCrMatrix_ITU_R_2020
+        default:
+            return CVYCbCrMatrixGetStringForIntegerCodePoint(Int32(rawValue))?.takeUnretainedValue()
+        }
+    }
+}
+
+extension AVChromaLocation {
+    var chroma: CFString? {
+        switch self {
+        case AVCHROMA_LOC_LEFT:
+            return kCVImageBufferChromaLocation_Left
+        case AVCHROMA_LOC_CENTER:
+            return kCVImageBufferChromaLocation_Center
+        case AVCHROMA_LOC_TOP:
+            return kCVImageBufferChromaLocation_Top
+        case AVCHROMA_LOC_BOTTOM:
+            return kCVImageBufferChromaLocation_Bottom
+        case AVCHROMA_LOC_TOPLEFT:
+            return kCVImageBufferChromaLocation_TopLeft
+        case AVCHROMA_LOC_BOTTOMLEFT:
+            return kCVImageBufferChromaLocation_BottomLeft
+        default:
+            return nil
+        }
+    }
+}
+
+extension AVPixelFormat {
+    var bitDepth: Int32 {
+        let descriptor = av_pix_fmt_desc_get(self)
+        return descriptor?.pointee.comp.0.depth ?? 8
+    }
+
+    var planeCount: UInt8 {
+        if let desc = av_pix_fmt_desc_get(self) {
+            switch desc.pointee.nb_components {
+            case 3:
+                return UInt8(desc.pointee.comp.2.plane + 1)
+            case 2:
+                return UInt8(desc.pointee.comp.1.plane + 1)
+            default:
+                return UInt8(desc.pointee.comp.0.plane + 1)
+            }
+        } else {
+            return 1
+        }
+    }
+
+    var leftShift: UInt8 {
+        if [AV_PIX_FMT_YUV420P10LE, AV_PIX_FMT_YUV422P10LE, AV_PIX_FMT_YUV444P10LE].contains(self) {
+            return 6
+        } else {
+            return 0
+        }
+    }
+
+    // videotoolbox_best_pixel_format
+    var bestPixelFormat: AVPixelFormat {
+        if let desc = av_pix_fmt_desc_get(self) {
+            if desc.pointee.flags & UInt64(AV_PIX_FMT_FLAG_ALPHA) != 0 {
+                return AV_PIX_FMT_AYUV64LE
+            }
+            let depth = desc.pointee.comp.0.depth
+            if depth > 10 {
+                return desc.pointee.log2_chroma_w == 0 ? AV_PIX_FMT_P416LE : AV_PIX_FMT_P216LE
+            }
+            if desc.pointee.log2_chroma_w == 0 {
+                return depth <= 8 ? AV_PIX_FMT_NV24 : AV_PIX_FMT_P410LE
+            }
+            if desc.pointee.log2_chroma_h == 0 {
+                return depth <= 8 ? AV_PIX_FMT_NV16 : AV_PIX_FMT_P210LE
+            }
+            return depth <= 8 ? AV_PIX_FMT_NV12 : AV_PIX_FMT_P010LE
+        } else {
+            return AV_PIX_FMT_NV12
+        }
+    }
+
+    // swiftlint:disable cyclomatic_complexity
+    // avfoundation.m
+    func osType(fullRange: Bool = false) -> OSType? {
+        switch self {
+        case AV_PIX_FMT_MONOBLACK: return kCVPixelFormatType_1Monochrome
+//        case AV_PIX_FMT_PAL8: return kCVPixelFormatType_32RGBA
+        case AV_PIX_FMT_GRAY8: return kCVPixelFormatType_OneComponent8
+        case AV_PIX_FMT_RGB555BE: return kCVPixelFormatType_16BE555
+        case AV_PIX_FMT_RGB555LE: return kCVPixelFormatType_16LE555
+        case AV_PIX_FMT_RGB565BE: return kCVPixelFormatType_16BE565
+        case AV_PIX_FMT_RGB565LE: return kCVPixelFormatType_16LE565
+//             PixelBufferPool 无法支持24BGR
+//        case AV_PIX_FMT_BGR24: return kCVPixelFormatType_24BGR
+        case AV_PIX_FMT_RGB24: return kCVPixelFormatType_24RGB
+        case AV_PIX_FMT_0RGB: return kCVPixelFormatType_32ARGB
+        case AV_PIX_FMT_ARGB: return kCVPixelFormatType_32ARGB
+        case AV_PIX_FMT_BGR0: return kCVPixelFormatType_32BGRA
+        case AV_PIX_FMT_BGRA: return kCVPixelFormatType_32BGRA
+        case AV_PIX_FMT_0BGR: return kCVPixelFormatType_32ABGR
+        case AV_PIX_FMT_RGB0: return kCVPixelFormatType_32RGBA
+        case AV_PIX_FMT_RGBA: return kCVPixelFormatType_32RGBA
+        case AV_PIX_FMT_BGR48BE, AV_PIX_FMT_BGR48LE: return kCVPixelFormatType_48RGB
+        case AV_PIX_FMT_NV12: return fullRange ? kCVPixelFormatType_420YpCbCr8BiPlanarFullRange : kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange
+        //  AVSampleBufferDisplayLayer不能显示 kCVPixelFormatType_420YpCbCr8PlanarFullRange,所以换成是kCVPixelFormatType_420YpCbCr8BiPlanarFullRange
+        case AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P: return fullRange ? kCVPixelFormatType_420YpCbCr8BiPlanarFullRange : kCVPixelFormatType_420YpCbCr8Planar
+        case AV_PIX_FMT_P010BE, AV_PIX_FMT_P010LE, AV_PIX_FMT_YUV420P10BE, AV_PIX_FMT_YUV420P10LE: return fullRange ? kCVPixelFormatType_420YpCbCr10BiPlanarFullRange : kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
+        case AV_PIX_FMT_UYVY422: return kCVPixelFormatType_422YpCbCr8
+        case AV_PIX_FMT_YUYV422: return kCVPixelFormatType_422YpCbCr8_yuvs
+        case AV_PIX_FMT_NV16: return fullRange ? kCVPixelFormatType_422YpCbCr8BiPlanarFullRange : kCVPixelFormatType_422YpCbCr8BiPlanarVideoRange
+        case AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P: return fullRange ? kCVPixelFormatType_422YpCbCr8BiPlanarFullRange : kCVPixelFormatType_422YpCbCr8BiPlanarVideoRange
+        case AV_PIX_FMT_Y210BE, AV_PIX_FMT_Y210LE: return kCVPixelFormatType_422YpCbCr10
+        case AV_PIX_FMT_P210BE, AV_PIX_FMT_P210LE, AV_PIX_FMT_YUV422P10BE, AV_PIX_FMT_YUV422P10LE: return fullRange ? kCVPixelFormatType_422YpCbCr10BiPlanarFullRange : kCVPixelFormatType_422YpCbCr10BiPlanarVideoRange
+        case AV_PIX_FMT_P216BE, AV_PIX_FMT_P216LE, AV_PIX_FMT_YUV422P16BE, AV_PIX_FMT_YUV422P16LE: return kCVPixelFormatType_422YpCbCr16BiPlanarVideoRange
+        case AV_PIX_FMT_NV24, AV_PIX_FMT_YUV444P: return fullRange ? kCVPixelFormatType_444YpCbCr8BiPlanarFullRange : kCVPixelFormatType_444YpCbCr8BiPlanarVideoRange
+        case AV_PIX_FMT_YUVA444P: return kCVPixelFormatType_4444YpCbCrA8R
+        case AV_PIX_FMT_P410BE, AV_PIX_FMT_P410LE, AV_PIX_FMT_YUV444P10BE, AV_PIX_FMT_YUV444P10LE: return fullRange ? kCVPixelFormatType_444YpCbCr10BiPlanarFullRange : kCVPixelFormatType_444YpCbCr10BiPlanarVideoRange
+        case AV_PIX_FMT_P416BE, AV_PIX_FMT_P416LE: return kCVPixelFormatType_444YpCbCr16BiPlanarVideoRange
+        case AV_PIX_FMT_AYUV64BE, AV_PIX_FMT_AYUV64LE: return kCVPixelFormatType_4444AYpCbCr16
+        case AV_PIX_FMT_YUVA444P16BE, AV_PIX_FMT_YUVA444P16LE: return kCVPixelFormatType_4444AYpCbCr16
+        default:
+            return nil
+        }
+    }
+    // swiftlint:enable cyclomatic_complexity
+}
+
+extension AVCodecID {
+    var mediaSubType: CMFormatDescription.MediaSubType {
+        switch self {
+        case AV_CODEC_ID_H263:
+            return .h263
+        case AV_CODEC_ID_H264:
+            return .h264
+        case AV_CODEC_ID_HEVC:
+            return .hevc
+        case AV_CODEC_ID_MPEG1VIDEO:
+            return .mpeg1Video
+        case AV_CODEC_ID_MPEG2VIDEO:
+            return .mpeg2Video
+        case AV_CODEC_ID_MPEG4:
+            return .mpeg4Video
+        case AV_CODEC_ID_VP9:
+            return CMFormatDescription.MediaSubType(rawValue: kCMVideoCodecType_VP9)
+        case AV_CODEC_ID_AAC:
+            return .mpeg4AAC
+        case AV_CODEC_ID_AC3:
+            return .ac3
+        case AV_CODEC_ID_ADPCM_IMA_QT:
+            return .appleIMA4
+        case AV_CODEC_ID_ALAC:
+            return .appleLossless
+        case AV_CODEC_ID_AMR_NB:
+            return .amr
+        case AV_CODEC_ID_EAC3:
+            return .enhancedAC3
+        case AV_CODEC_ID_GSM_MS:
+            return .microsoftGSM
+        case AV_CODEC_ID_ILBC:
+            return .iLBC
+        case AV_CODEC_ID_MP1:
+            return .mpegLayer1
+        case AV_CODEC_ID_MP2:
+            return .mpegLayer2
+        case AV_CODEC_ID_MP3:
+            return .mpegLayer3
+        case AV_CODEC_ID_PCM_ALAW:
+            return .aLaw
+        case AV_CODEC_ID_PCM_MULAW:
+            return .uLaw
+        case AV_CODEC_ID_QDMC:
+            return .qDesign
+        case AV_CODEC_ID_QDM2:
+            return .qDesign2
+        default:
+            return CMFormatDescription.MediaSubType(rawValue: 0)
+        }
+    }
+}
+
+extension AVRational {
+    var size: CGSize {
+        num > 0 && den > 0 ? CGSize(width: Int(num), height: Int(den)) : CGSize(width: 1, height: 1)
+    }
+}
+
+extension AVBufferSrcParameters: Equatable {
+    public static func == (lhs: AVBufferSrcParameters, rhs: AVBufferSrcParameters) -> Bool {
+        lhs.format == rhs.format && lhs.width == rhs.width && lhs.height == rhs.height && lhs.sample_aspect_ratio == rhs.sample_aspect_ratio && lhs.sample_rate == rhs.sample_rate && lhs.ch_layout == rhs.ch_layout
+    }
+
+    var arg: String {
+        if sample_rate > 0 {
+            let fmt = String(cString: av_get_sample_fmt_name(AVSampleFormat(rawValue: format)))
+            return "sample_rate=\(sample_rate):sample_fmt=\(fmt):time_base=\(time_base.num)/\(time_base.den):channels=\(ch_layout.nb_channels):channel_layout=\(ch_layout.description)"
+        } else {
+            return "video_size=\(width)x\(height):pix_fmt=\(format):time_base=\(time_base.num)/\(time_base.den):pixel_aspect=\(sample_aspect_ratio.num)/\(sample_aspect_ratio.den)"
+        }
+    }
+}
+
+extension AVChannelLayout: Equatable {
+    public static func == (lhs: AVChannelLayout, rhs: AVChannelLayout) -> Bool {
+        var lhs = lhs
+        var rhs = rhs
+        return av_channel_layout_compare(&lhs, &rhs) == 0
+    }
+}
+
+extension AVChannelLayout: CustomStringConvertible {
+    static let defaultValue = AVChannelLayout(order: AV_CHANNEL_ORDER_NATIVE, nb_channels: 2, u: AVChannelLayout.__Unnamed_union_u(mask: swift_AV_CH_LAYOUT_STEREO), opaque: nil)
+    var layoutTag: AudioChannelLayoutTag? {
+        KSLog("[audio] FFmepg AVChannelLayout: \(self) order: \(order) mask: \(u.mask)")
+        let tag = layoutMapTuple.first { _, mask in
+            u.mask == mask
+        }?.tag
+        if let tag {
+            return tag
+        } else {
+            KSLog("[audio] can not find AudioChannelLayoutTag FFmepg channelLayout: \(self) order: \(order) mask: \(u.mask)")
+            return nil
+        }
+    }
+
+    public var description: String {
+        var channelLayout = self
+        var str = [Int8](repeating: 0, count: 64)
+        _ = av_channel_layout_describe(&channelLayout, &str, str.count)
+        return String(cString: str)
+    }
+}
+
+extension AVRational: Equatable {
+    public static func == (lhs: AVRational, rhs: AVRational) -> Bool {
+        lhs.num == rhs.num && rhs.den == rhs.den
+    }
+}
+
+public struct AVError: Error, Equatable {
+    public var code: Int32
+    public var message: String
+
+    init(code: Int32) {
+        self.code = code
+        message = String(avErrorCode: code)
+    }
+}
+
+public extension Dictionary where Key == String {
+    var avOptions: OpaquePointer? {
+        var avOptions: OpaquePointer?
+        forEach { key, value in
+            if let i = value as? Int64 {
+                av_dict_set_int(&avOptions, key, i, 0)
+            } else if let i = value as? Int {
+                av_dict_set_int(&avOptions, key, Int64(i), 0)
+            } else if let string = value as? String {
+                av_dict_set(&avOptions, key, string, 0)
+            } else if let dic = value as? Dictionary {
+                let string = dic.map { "\($0.0)=\($0.1)" }.joined(separator: "\r\n")
+                av_dict_set(&avOptions, key, string, 0)
+            } else if let array = value as? [String] {
+                let string = array.joined(separator: "+")
+                av_dict_set(&avOptions, key, string, 0)
+            }
+        }
+        return avOptions
+    }
+}
+
+extension String {
+    init(avErrorCode code: Int32) {
+        let buf = UnsafeMutablePointer<Int8>.allocate(capacity: Int(AV_ERROR_MAX_STRING_SIZE))
+        buf.initialize(repeating: 0, count: Int(AV_ERROR_MAX_STRING_SIZE))
+        defer { buf.deallocate() }
+        self = String(cString: av_make_error_string(buf, Int(AV_ERROR_MAX_STRING_SIZE), code))
+    }
+}
+
+public extension NSError {
+    convenience init(errorCode: KSPlayerErrorCode, avErrorCode: Int32) {
+        let underlyingError = AVError(code: avErrorCode)
+        self.init(errorCode: errorCode, userInfo: [NSUnderlyingErrorKey: underlyingError])
+    }
+}
+
+public extension AVError {
+    /// Resource temporarily unavailable
+    static let tryAgain = AVError(code: swift_AVERROR(EAGAIN))
+    /// Invalid argument
+    static let invalidArgument = AVError(code: swift_AVERROR(EINVAL))
+    /// Cannot allocate memory
+    static let outOfMemory = AVError(code: swift_AVERROR(ENOMEM))
+    /// The value is out of range
+    static let outOfRange = AVError(code: swift_AVERROR(ERANGE))
+    /// The value is not valid
+    static let invalidValue = AVError(code: swift_AVERROR(EINVAL))
+    /// Function not implemented
+    static let noSystem = AVError(code: swift_AVERROR(ENOSYS))
+
+    /// Bitstream filter not found
+    static let bitstreamFilterNotFound = AVError(code: swift_AVERROR_BSF_NOT_FOUND)
+    /// Internal bug, also see `bug2`
+    static let bug = AVError(code: swift_AVERROR_BUG)
+    /// Buffer too small
+    static let bufferTooSmall = AVError(code: swift_AVERROR_BUFFER_TOO_SMALL)
+    /// Decoder not found
+    static let decoderNotFound = AVError(code: swift_AVERROR_DECODER_NOT_FOUND)
+    /// Demuxer not found
+    static let demuxerNotFound = AVError(code: swift_AVERROR_DEMUXER_NOT_FOUND)
+    /// Encoder not found
+    static let encoderNotFound = AVError(code: swift_AVERROR_ENCODER_NOT_FOUND)
+    /// End of file
+    static let eof = AVError(code: swift_AVERROR_EOF)
+    /// Immediate exit was requested; the called function should not be restarted
+    static let exit = AVError(code: swift_AVERROR_EXIT)
+    /// Generic error in an external library
+    static let external = AVError(code: swift_AVERROR_EXTERNAL)
+    /// Filter not found
+    static let filterNotFound = AVError(code: swift_AVERROR_FILTER_NOT_FOUND)
+    /// Invalid data found when processing input
+    static let invalidData = AVError(code: swift_AVERROR_INVALIDDATA)
+    /// Muxer not found
+    static let muxerNotFound = AVError(code: swift_AVERROR_MUXER_NOT_FOUND)
+    /// Option not found
+    static let optionNotFound = AVError(code: swift_AVERROR_OPTION_NOT_FOUND)
+    /// Not yet implemented in FFmpeg, patches welcome
+    static let patchWelcome = AVError(code: swift_AVERROR_PATCHWELCOME)
+    /// Protocol not found
+    static let protocolNotFound = AVError(code: swift_AVERROR_PROTOCOL_NOT_FOUND)
+    /// Stream not found
+    static let streamNotFound = AVError(code: swift_AVERROR_STREAM_NOT_FOUND)
+    /// This is semantically identical to `bug`. It has been introduced in Libav after our `bug` and
+    /// with a modified value.
+    static let bug2 = AVError(code: swift_AVERROR_BUG2)
+    /// Unknown error, typically from an external library
+    static let unknown = AVError(code: swift_AVERROR_UNKNOWN)
+    ///  Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
+    static let experimental = AVError(code: swift_AVERROR_EXPERIMENTAL)
+    /// Input changed between calls. Reconfiguration is required. (can be OR-ed with `outputChanged`)
+    static let inputChanged = AVError(code: swift_AVERROR_INPUT_CHANGED)
+    /// Output changed between calls. Reconfiguration is required. (can be OR-ed with `inputChanged`)
+    static let outputChanged = AVError(code: swift_AVERROR_OUTPUT_CHANGED)
+
+    /* HTTP & RTSP errors */
+    static let httpBadRequest = AVError(code: swift_AVERROR_HTTP_BAD_REQUEST)
+    static let httpUnauthorized = AVError(code: swift_AVERROR_HTTP_UNAUTHORIZED)
+    static let httpForbidden = AVError(code: swift_AVERROR_HTTP_FORBIDDEN)
+    static let httpNotFound = AVError(code: swift_AVERROR_HTTP_NOT_FOUND)
+    static let httpOther4xx = AVError(code: swift_AVERROR_HTTP_OTHER_4XX)
+    static let httpServerError = AVError(code: swift_AVERROR_HTTP_SERVER_ERROR)
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/AVFoundationExtension.swift

@@ -0,0 +1,333 @@
+//
+//  AVFoundationExtension.swift
+//
+//
+//  Created by kintan on 2023/1/9.
+//
+
+import AVFoundation
+import CoreMedia
+import FFmpegKit
+import Libavutil
+
+extension OSType {
+    var bitDepth: Int32 {
+        switch self {
+        case kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange, kCVPixelFormatType_422YpCbCr10BiPlanarVideoRange, kCVPixelFormatType_444YpCbCr10BiPlanarVideoRange, kCVPixelFormatType_420YpCbCr10BiPlanarFullRange, kCVPixelFormatType_422YpCbCr10BiPlanarFullRange, kCVPixelFormatType_444YpCbCr10BiPlanarFullRange:
+            return 10
+        default:
+            return 8
+        }
+    }
+}
+
+extension CVPixelBufferPool {
+    static func create(width: Int32, height: Int32, bytesPerRowAlignment: Int32, pixelFormatType: OSType, bufferCount: Int = 24) -> CVPixelBufferPool? {
+        let sourcePixelBufferOptions: NSMutableDictionary = [
+            kCVPixelBufferPixelFormatTypeKey: pixelFormatType,
+            kCVPixelBufferWidthKey: width,
+            kCVPixelBufferHeightKey: height,
+            kCVPixelBufferBytesPerRowAlignmentKey: bytesPerRowAlignment.alignment(value: 64),
+            kCVPixelBufferMetalCompatibilityKey: true,
+            kCVPixelBufferIOSurfacePropertiesKey: NSDictionary(),
+        ]
+        var outputPool: CVPixelBufferPool?
+        let pixelBufferPoolOptions: NSDictionary = [kCVPixelBufferPoolMinimumBufferCountKey: bufferCount]
+        CVPixelBufferPoolCreate(kCFAllocatorDefault, pixelBufferPoolOptions, sourcePixelBufferOptions, &outputPool)
+        return outputPool
+    }
+}
+
+extension AudioUnit {
+    var channelLayout: UnsafeMutablePointer<AudioChannelLayout> {
+        var size = UInt32(0)
+        AudioUnitGetPropertyInfo(self, kAudioUnitProperty_AudioChannelLayout, kAudioUnitScope_Output, 0, &size, nil)
+        let data = UnsafeMutableRawPointer.allocate(byteCount: Int(size), alignment: MemoryLayout<Int8>.alignment)
+        AudioUnitGetProperty(self, kAudioUnitProperty_AudioChannelLayout, kAudioUnitScope_Output, 0, data, &size)
+        let layout = data.bindMemory(to: AudioChannelLayout.self, capacity: 1)
+        let tag = layout.pointee.mChannelLayoutTag
+        KSLog("[audio] unit tag: \(tag)")
+        if tag == kAudioChannelLayoutTag_UseChannelDescriptions {
+            KSLog("[audio] unit channelDescriptions: \(layout.channelDescriptions)")
+            return layout
+        }
+        if tag == kAudioChannelLayoutTag_UseChannelBitmap {
+            return layout.pointee.mChannelBitmap.channelLayout
+        } else {
+            let layout = tag.channelLayout
+            KSLog("[audio] unit channelDescriptions: \(layout.channelDescriptions)")
+            return layout
+        }
+    }
+}
+
+extension AudioChannelLayoutTag {
+    var channelLayout: UnsafeMutablePointer<AudioChannelLayout> {
+        var tag = self
+        var size = UInt32(0)
+        AudioFormatGetPropertyInfo(kAudioFormatProperty_ChannelLayoutForTag, UInt32(MemoryLayout<AudioChannelLayoutTag>.size), &tag, &size)
+        let data = UnsafeMutableRawPointer.allocate(byteCount: Int(size), alignment: MemoryLayout<Int8>.alignment)
+        AudioFormatGetProperty(kAudioFormatProperty_ChannelLayoutForTag, UInt32(MemoryLayout<AudioChannelLayoutTag>.size), &tag, &size, data)
+        let newLayout = data.bindMemory(to: AudioChannelLayout.self, capacity: 1)
+        newLayout.pointee.mChannelLayoutTag = kAudioChannelLayoutTag_UseChannelDescriptions
+        return newLayout
+    }
+}
+
+extension AudioChannelBitmap {
+    var channelLayout: UnsafeMutablePointer<AudioChannelLayout> {
+        var mChannelBitmap = self
+        var size = UInt32(0)
+        AudioFormatGetPropertyInfo(kAudioFormatProperty_ChannelLayoutForBitmap, UInt32(MemoryLayout<AudioChannelBitmap>.size), &mChannelBitmap, &size)
+        let data = UnsafeMutableRawPointer.allocate(byteCount: Int(size), alignment: MemoryLayout<Int8>.alignment)
+        AudioFormatGetProperty(kAudioFormatProperty_ChannelLayoutForBitmap, UInt32(MemoryLayout<AudioChannelBitmap>.size), &mChannelBitmap, &size, data)
+        let newLayout = data.bindMemory(to: AudioChannelLayout.self, capacity: 1)
+        newLayout.pointee.mChannelLayoutTag = kAudioChannelLayoutTag_UseChannelDescriptions
+        return newLayout
+    }
+}
+
+extension UnsafePointer<AudioChannelLayout> {
+    var channelDescriptions: [AudioChannelDescription] {
+        UnsafeMutablePointer(mutating: self).channelDescriptions
+    }
+}
+
+extension UnsafeMutablePointer<AudioChannelLayout> {
+    var channelDescriptions: [AudioChannelDescription] {
+        let n = pointee.mNumberChannelDescriptions
+        return withUnsafeMutablePointer(to: &pointee.mChannelDescriptions) { start in
+            let buffers = UnsafeBufferPointer<AudioChannelDescription>(start: start, count: Int(n))
+            return (0 ..< Int(n)).map {
+                buffers[$0]
+            }
+        }
+    }
+}
+
+extension AudioChannelLayout: CustomStringConvertible {
+    public var description: String {
+        "AudioChannelLayoutTag: \(mChannelLayoutTag), mNumberChannelDescriptions: \(mNumberChannelDescriptions)"
+    }
+}
+
+extension AVAudioChannelLayout {
+    func channelLayout() -> AVChannelLayout {
+        KSLog("[audio] channelLayout: \(layout.pointee.description)")
+        var mask: UInt64?
+        if layoutTag == kAudioChannelLayoutTag_UseChannelDescriptions {
+            var newMask = UInt64(0)
+            for description in layout.channelDescriptions {
+                let label = description.mChannelLabel
+                KSLog("[audio] label: \(label)")
+                let channel = label.avChannel.rawValue
+                KSLog("[audio] avChannel: \(channel)")
+                if channel >= 0 {
+                    newMask |= 1 << channel
+                }
+            }
+            mask = newMask
+        } else {
+            mask = layoutMapTuple.first { tag, _ in
+                tag == layoutTag
+            }?.mask
+        }
+        var outChannel = AVChannelLayout()
+        if let mask {
+            // 不能用AV_CHANNEL_ORDER_CUSTOM
+            av_channel_layout_from_mask(&outChannel, mask)
+        } else {
+            av_channel_layout_default(&outChannel, Int32(channelCount))
+        }
+        KSLog("[audio] out mask: \(outChannel.u.mask) nb_channels: \(outChannel.nb_channels)")
+        return outChannel
+    }
+
+    public var channelDescriptions: String {
+        "tag: \(layoutTag), channelDescriptions: \(layout.channelDescriptions)"
+    }
+}
+
+extension AVAudioFormat {
+    var sampleFormat: AVSampleFormat {
+        switch commonFormat {
+        case .pcmFormatFloat32:
+            return isInterleaved ? AV_SAMPLE_FMT_FLT : AV_SAMPLE_FMT_FLTP
+        case .pcmFormatFloat64:
+            return isInterleaved ? AV_SAMPLE_FMT_DBL : AV_SAMPLE_FMT_DBLP
+        case .pcmFormatInt16:
+            return isInterleaved ? AV_SAMPLE_FMT_S16 : AV_SAMPLE_FMT_S16P
+        case .pcmFormatInt32:
+            return isInterleaved ? AV_SAMPLE_FMT_S32 : AV_SAMPLE_FMT_S32P
+        case .otherFormat:
+            return isInterleaved ? AV_SAMPLE_FMT_FLT : AV_SAMPLE_FMT_FLTP
+        @unknown default:
+            return isInterleaved ? AV_SAMPLE_FMT_FLT : AV_SAMPLE_FMT_FLTP
+        }
+    }
+
+    var sampleSize: UInt32 {
+        switch commonFormat {
+        case .pcmFormatFloat32:
+            return isInterleaved ? channelCount * 4 : 4
+        case .pcmFormatFloat64:
+            return isInterleaved ? channelCount * 8 : 8
+        case .pcmFormatInt16:
+            return isInterleaved ? channelCount * 2 : 2
+        case .pcmFormatInt32:
+            return isInterleaved ? channelCount * 4 : 4
+        case .otherFormat:
+            return isInterleaved ? channelCount * 4 : channelCount * 4
+        @unknown default:
+            return isInterleaved ? channelCount * 4 : channelCount * 4
+        }
+    }
+
+    func isChannelEqual(_ object: AVAudioFormat) -> Bool {
+        sampleRate == object.sampleRate && channelCount == object.channelCount && commonFormat == object.commonFormat && sampleRate == object.sampleRate && isInterleaved == object.isInterleaved
+    }
+}
+
+let layoutMapTuple =
+    [(tag: kAudioChannelLayoutTag_Mono, mask: swift_AV_CH_LAYOUT_MONO),
+     (tag: kAudioChannelLayoutTag_Stereo, mask: swift_AV_CH_LAYOUT_STEREO),
+     (tag: kAudioChannelLayoutTag_WAVE_2_1, mask: swift_AV_CH_LAYOUT_2POINT1),
+     (tag: kAudioChannelLayoutTag_ITU_2_1, mask: swift_AV_CH_LAYOUT_2_1),
+     (tag: kAudioChannelLayoutTag_MPEG_3_0_A, mask: swift_AV_CH_LAYOUT_SURROUND),
+     (tag: kAudioChannelLayoutTag_DVD_10, mask: swift_AV_CH_LAYOUT_3POINT1),
+     (tag: kAudioChannelLayoutTag_Logic_4_0_A, mask: swift_AV_CH_LAYOUT_4POINT0),
+     (tag: kAudioChannelLayoutTag_Logic_Quadraphonic, mask: swift_AV_CH_LAYOUT_2_2),
+     (tag: kAudioChannelLayoutTag_WAVE_4_0_B, mask: swift_AV_CH_LAYOUT_QUAD),
+     (tag: kAudioChannelLayoutTag_DVD_11, mask: swift_AV_CH_LAYOUT_4POINT1),
+     (tag: kAudioChannelLayoutTag_Logic_5_0_A, mask: swift_AV_CH_LAYOUT_5POINT0),
+     (tag: kAudioChannelLayoutTag_WAVE_5_0_B, mask: swift_AV_CH_LAYOUT_5POINT0_BACK),
+     (tag: kAudioChannelLayoutTag_Logic_5_1_A, mask: swift_AV_CH_LAYOUT_5POINT1),
+     (tag: kAudioChannelLayoutTag_WAVE_5_1_B, mask: swift_AV_CH_LAYOUT_5POINT1_BACK),
+     (tag: kAudioChannelLayoutTag_Logic_6_0_A, mask: swift_AV_CH_LAYOUT_6POINT0),
+     (tag: kAudioChannelLayoutTag_DTS_6_0_A, mask: swift_AV_CH_LAYOUT_6POINT0_FRONT),
+     (tag: kAudioChannelLayoutTag_DTS_6_0_C, mask: swift_AV_CH_LAYOUT_HEXAGONAL),
+     (tag: kAudioChannelLayoutTag_Logic_6_1_C, mask: swift_AV_CH_LAYOUT_6POINT1),
+     (tag: kAudioChannelLayoutTag_DTS_6_1_A, mask: swift_AV_CH_LAYOUT_6POINT1_FRONT),
+     (tag: kAudioChannelLayoutTag_DTS_6_1_C, mask: swift_AV_CH_LAYOUT_6POINT1_BACK),
+     (tag: kAudioChannelLayoutTag_AAC_7_0, mask: swift_AV_CH_LAYOUT_7POINT0),
+     (tag: kAudioChannelLayoutTag_Logic_7_1_A, mask: swift_AV_CH_LAYOUT_7POINT1),
+     (tag: kAudioChannelLayoutTag_Logic_7_1_SDDS_A, mask: swift_AV_CH_LAYOUT_7POINT1_WIDE),
+     (tag: kAudioChannelLayoutTag_AAC_Octagonal, mask: swift_AV_CH_LAYOUT_OCTAGONAL),
+     //     (tag: kAudioChannelLayoutTag_Logic_Atmos_5_1_2, mask: swift_AV_CH_LAYOUT_7POINT1_WIDE_BACK),
+    ]
+
+// Some channel abbreviations used below:
+// Lss - left side surround
+// Rss - right side surround
+// Leos - Left edge of screen
+// Reos - Right edge of screen
+// Lbs - Left back surround
+// Rbs - Right back surround
+// Lt - left matrix total. for matrix encoded stereo.
+// Rt - right matrix total. for matrix encoded stereo.
+
+extension AudioChannelLabel {
+    var avChannel: AVChannel {
+        switch self {
+        case kAudioChannelLabel_Left:
+            // L - left
+            return AV_CHAN_FRONT_LEFT
+        case kAudioChannelLabel_Right:
+            // R - right
+            return AV_CHAN_FRONT_RIGHT
+        case kAudioChannelLabel_Center:
+            // C - center
+            return AV_CHAN_FRONT_CENTER
+        case kAudioChannelLabel_LFEScreen:
+            // Lfe
+            return AV_CHAN_LOW_FREQUENCY
+        case kAudioChannelLabel_LeftSurround:
+            // Ls - left surround
+            return AV_CHAN_SIDE_LEFT
+        case kAudioChannelLabel_RightSurround:
+            // Rs - right surround
+            return AV_CHAN_SIDE_RIGHT
+        case kAudioChannelLabel_LeftCenter:
+            // Lc - left center
+            return AV_CHAN_FRONT_LEFT_OF_CENTER
+        case kAudioChannelLabel_RightCenter:
+            // Rc - right center
+            return AV_CHAN_FRONT_RIGHT_OF_CENTER
+        case kAudioChannelLabel_CenterSurround:
+            // Cs - center surround "Back Center" or plain "Rear Surround"
+            return AV_CHAN_BACK_CENTER
+        case kAudioChannelLabel_LeftSurroundDirect:
+            // Lsd - left surround direct
+            return AV_CHAN_SURROUND_DIRECT_LEFT
+        case kAudioChannelLabel_RightSurroundDirect:
+            // Rsd - right surround direct
+            return AV_CHAN_SURROUND_DIRECT_RIGHT
+        case kAudioChannelLabel_TopCenterSurround:
+            // Ts - top surround
+            return AV_CHAN_TOP_CENTER
+        case kAudioChannelLabel_VerticalHeightLeft:
+            // Vhl - vertical height left Top Front Left
+            return AV_CHAN_TOP_FRONT_LEFT
+        case kAudioChannelLabel_VerticalHeightCenter:
+            // Vhc - vertical height center Top Front Center
+            return AV_CHAN_TOP_FRONT_CENTER
+        case kAudioChannelLabel_VerticalHeightRight:
+            // Vhr - vertical height right Top Front right
+            return AV_CHAN_TOP_FRONT_RIGHT
+        case kAudioChannelLabel_TopBackLeft:
+            // Ltr - left top rear
+            return AV_CHAN_TOP_BACK_LEFT
+        case kAudioChannelLabel_TopBackCenter:
+            // Ctr - center top rear
+            return AV_CHAN_TOP_BACK_CENTER
+        case kAudioChannelLabel_TopBackRight:
+            // Rtr - right top rear
+            return AV_CHAN_TOP_BACK_RIGHT
+        case kAudioChannelLabel_RearSurroundLeft:
+            // Rls - rear left surround
+            return AV_CHAN_BACK_LEFT
+        case kAudioChannelLabel_RearSurroundRight:
+            // Rrs - rear right surround
+            return AV_CHAN_BACK_RIGHT
+        case kAudioChannelLabel_LeftWide:
+            // Lw - left wide
+            return AV_CHAN_WIDE_LEFT
+        case kAudioChannelLabel_RightWide:
+            // Rw - right wide
+            return AV_CHAN_WIDE_RIGHT
+        case kAudioChannelLabel_LFE2:
+            // LFE2
+            return AV_CHAN_LOW_FREQUENCY_2
+        case kAudioChannelLabel_Mono:
+            // C - center
+            return AV_CHAN_FRONT_CENTER
+        case kAudioChannelLabel_LeftTopMiddle:
+            // Ltm - left top middle
+            return AV_CHAN_NONE
+        case kAudioChannelLabel_RightTopMiddle:
+            // Rtm - right top middle
+            return AV_CHAN_NONE
+        case kAudioChannelLabel_LeftTopSurround:
+            // Lts - Left top surround
+            return AV_CHAN_TOP_SIDE_LEFT
+        case kAudioChannelLabel_RightTopSurround:
+            // Rts - Right top surround
+            return AV_CHAN_TOP_SIDE_RIGHT
+        case kAudioChannelLabel_LeftBottom:
+            // Lb - left bottom
+            return AV_CHAN_BOTTOM_FRONT_LEFT
+        case kAudioChannelLabel_RightBottom:
+            // Rb - Right bottom
+            return AV_CHAN_BOTTOM_FRONT_RIGHT
+        case kAudioChannelLabel_CenterBottom:
+            // Cb - Center bottom
+            return AV_CHAN_BOTTOM_FRONT_CENTER
+        case kAudioChannelLabel_HeadphonesLeft:
+            return AV_CHAN_STEREO_LEFT
+        case kAudioChannelLabel_HeadphonesRight:
+            return AV_CHAN_STEREO_RIGHT
+        default:
+            return AV_CHAN_NONE
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/AudioEnginePlayer.swift

@@ -0,0 +1,338 @@
+//
+//  AudioEnginePlayer.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/11.
+//
+
+import AVFoundation
+import CoreAudio
+
+public protocol AudioOutput: FrameOutput {
+    var playbackRate: Float { get set }
+    var volume: Float { get set }
+    var isMuted: Bool { get set }
+    init()
+    func prepare(audioFormat: AVAudioFormat)
+}
+
+public protocol AudioDynamicsProcessor {
+    var audioUnitForDynamicsProcessor: AudioUnit { get }
+}
+
+public extension AudioDynamicsProcessor {
+    var attackTime: Float {
+        get {
+            var value = AudioUnitParameterValue(1.0)
+            AudioUnitGetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_AttackTime, kAudioUnitScope_Global, 0, &value)
+            return value
+        }
+        set {
+            AudioUnitSetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_AttackTime, kAudioUnitScope_Global, 0, AudioUnitParameterValue(newValue), 0)
+        }
+    }
+
+    var releaseTime: Float {
+        get {
+            var value = AudioUnitParameterValue(1.0)
+            AudioUnitGetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_ReleaseTime, kAudioUnitScope_Global, 0, &value)
+            return value
+        }
+        set {
+            AudioUnitSetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_ReleaseTime, kAudioUnitScope_Global, 0, AudioUnitParameterValue(newValue), 0)
+        }
+    }
+
+    var threshold: Float {
+        get {
+            var value = AudioUnitParameterValue(1.0)
+            AudioUnitGetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_Threshold, kAudioUnitScope_Global, 0, &value)
+            return value
+        }
+        set {
+            AudioUnitSetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_Threshold, kAudioUnitScope_Global, 0, AudioUnitParameterValue(newValue), 0)
+        }
+    }
+
+    var expansionRatio: Float {
+        get {
+            var value = AudioUnitParameterValue(1.0)
+            AudioUnitGetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_ExpansionRatio, kAudioUnitScope_Global, 0, &value)
+            return value
+        }
+        set {
+            AudioUnitSetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_ExpansionRatio, kAudioUnitScope_Global, 0, AudioUnitParameterValue(newValue), 0)
+        }
+    }
+
+    var overallGain: Float {
+        get {
+            var value = AudioUnitParameterValue(1.0)
+            AudioUnitGetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_OverallGain, kAudioUnitScope_Global, 0, &value)
+            return value
+        }
+        set {
+            AudioUnitSetParameter(audioUnitForDynamicsProcessor, kDynamicsProcessorParam_OverallGain, kAudioUnitScope_Global, 0, AudioUnitParameterValue(newValue), 0)
+        }
+    }
+}
+
+public final class AudioEngineDynamicsPlayer: AudioEnginePlayer, AudioDynamicsProcessor {
+    private let dynamicsProcessor = AVAudioUnitEffect(audioComponentDescription:
+        AudioComponentDescription(componentType: kAudioUnitType_Effect,
+                                  componentSubType: kAudioUnitSubType_DynamicsProcessor,
+                                  componentManufacturer: kAudioUnitManufacturer_Apple,
+                                  componentFlags: 0,
+                                  componentFlagsMask: 0))
+    public var audioUnitForDynamicsProcessor: AudioUnit {
+        dynamicsProcessor.audioUnit
+    }
+
+    override func audioNodes() -> [AVAudioNode] {
+        var nodes: [AVAudioNode] = [dynamicsProcessor]
+        nodes.append(contentsOf: super.audioNodes())
+        return nodes
+    }
+
+    public required init() {
+        super.init()
+        engine.attach(dynamicsProcessor)
+    }
+}
+
+public class AudioEnginePlayer: AudioOutput {
+    public let engine = AVAudioEngine()
+    private var sourceNode: AVAudioSourceNode?
+    private var sourceNodeAudioFormat: AVAudioFormat?
+
+//    private let reverb = AVAudioUnitReverb()
+//    private let nbandEQ = AVAudioUnitEQ()
+//    private let distortion = AVAudioUnitDistortion()
+//    private let delay = AVAudioUnitDelay()
+    private let timePitch = AVAudioUnitTimePitch()
+    private var sampleSize = UInt32(MemoryLayout<Float>.size)
+    private var currentRenderReadOffset = UInt32(0)
+    private var outputLatency = TimeInterval(0)
+    public weak var renderSource: OutputRenderSourceDelegate?
+    private var currentRender: AudioFrame? {
+        didSet {
+            if currentRender == nil {
+                currentRenderReadOffset = 0
+            }
+        }
+    }
+
+    public var playbackRate: Float {
+        get {
+            timePitch.rate
+        }
+        set {
+            timePitch.rate = min(32, max(1 / 32, newValue))
+        }
+    }
+
+    public var volume: Float {
+        get {
+            sourceNode?.volume ?? 1
+        }
+        set {
+            sourceNode?.volume = newValue
+        }
+    }
+
+    public var isMuted: Bool {
+        get {
+            engine.mainMixerNode.outputVolume == 0.0
+        }
+        set {
+            engine.mainMixerNode.outputVolume = newValue ? 0.0 : 1.0
+        }
+    }
+
+    public required init() {
+        engine.attach(timePitch)
+        if let audioUnit = engine.outputNode.audioUnit {
+            addRenderNotify(audioUnit: audioUnit)
+        }
+        #if !os(macOS)
+        outputLatency = AVAudioSession.sharedInstance().outputLatency
+        #endif
+    }
+
+    public func prepare(audioFormat: AVAudioFormat) {
+        if sourceNodeAudioFormat == audioFormat {
+            return
+        }
+        sourceNodeAudioFormat = audioFormat
+        #if !os(macOS)
+        try? AVAudioSession.sharedInstance().setPreferredOutputNumberOfChannels(Int(audioFormat.channelCount))
+        KSLog("[audio] set preferredOutputNumberOfChannels: \(audioFormat.channelCount)")
+        #endif
+        KSLog("[audio] outputFormat AudioFormat: \(audioFormat)")
+        if let channelLayout = audioFormat.channelLayout {
+            KSLog("[audio] outputFormat channelLayout \(channelLayout.channelDescriptions)")
+        }
+        let isRunning = engine.isRunning
+        engine.stop()
+        engine.reset()
+        sourceNode = AVAudioSourceNode(format: audioFormat) { [weak self] _, timestamp, frameCount, audioBufferList in
+            if timestamp.pointee.mSampleTime == 0 {
+                return noErr
+            }
+            self?.audioPlayerShouldInputData(ioData: UnsafeMutableAudioBufferListPointer(audioBufferList), numberOfFrames: frameCount)
+            return noErr
+        }
+        guard let sourceNode else {
+            return
+        }
+        KSLog("[audio] new sourceNode inputFormat: \(sourceNode.inputFormat(forBus: 0))")
+        sampleSize = audioFormat.sampleSize
+        engine.attach(sourceNode)
+        var nodes: [AVAudioNode] = [sourceNode]
+        nodes.append(contentsOf: audioNodes())
+        if audioFormat.channelCount > 2 {
+            nodes.append(engine.outputNode)
+        }
+        // 一定要传入format，这样多音轨音响才不会有问题。
+        engine.connect(nodes: nodes, format: audioFormat)
+        engine.prepare()
+        if isRunning {
+            try? engine.start()
+            // 从多声道切换到2声道马上调用start会不生效。需要异步主线程才可以
+            DispatchQueue.main.async { [weak self] in
+                self?.play()
+            }
+        }
+    }
+
+    func audioNodes() -> [AVAudioNode] {
+        [timePitch, engine.mainMixerNode]
+    }
+
+    public func play() {
+        if !engine.isRunning {
+            do {
+                try engine.start()
+            } catch {
+                KSLog(error)
+            }
+        }
+    }
+
+    public func pause() {
+        if engine.isRunning {
+            engine.pause()
+        }
+    }
+
+    public func flush() {
+        currentRender = nil
+        #if !os(macOS)
+        // 这个要在主线程执行，如果在音频的线程，那就会有中断杂音
+        outputLatency = AVAudioSession.sharedInstance().outputLatency
+        #endif
+    }
+
+    private func addRenderNotify(audioUnit: AudioUnit) {
+        AudioUnitAddRenderNotify(audioUnit, { refCon, ioActionFlags, inTimeStamp, _, _, _ in
+            let `self` = Unmanaged<AudioEnginePlayer>.fromOpaque(refCon).takeUnretainedValue()
+            autoreleasepool {
+                if ioActionFlags.pointee.contains(.unitRenderAction_PostRender) {
+                    self.audioPlayerDidRenderSample(sampleTimestamp: inTimeStamp.pointee)
+                }
+            }
+            return noErr
+        }, Unmanaged.passUnretained(self).toOpaque())
+    }
+
+//    private func addRenderCallback(audioUnit: AudioUnit, streamDescription: UnsafePointer<AudioStreamBasicDescription>) {
+//        _ = AudioUnitSetProperty(audioUnit,
+//                                 kAudioUnitProperty_StreamFormat,
+//                                 kAudioUnitScope_Input,
+//                                 0,
+//                                 streamDescription,
+//                                 UInt32(MemoryLayout<AudioStreamBasicDescription>.size))
+//        var inputCallbackStruct = AURenderCallbackStruct()
+//        inputCallbackStruct.inputProcRefCon = Unmanaged.passUnretained(self).toOpaque()
+//        inputCallbackStruct.inputProc = { refCon, _, _, _, inNumberFrames, ioData in
+//            guard let ioData else {
+//                return noErr
+//            }
+//            let `self` = Unmanaged<AudioEnginePlayer>.fromOpaque(refCon).takeUnretainedValue()
+//            self.audioPlayerShouldInputData(ioData: UnsafeMutableAudioBufferListPointer(ioData), numberOfFrames: inNumberFrames)
+//            return noErr
+//        }
+//        _ = AudioUnitSetProperty(audioUnit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &inputCallbackStruct, UInt32(MemoryLayout<AURenderCallbackStruct>.size))
+//    }
+
+    private func audioPlayerShouldInputData(ioData: UnsafeMutableAudioBufferListPointer, numberOfFrames: UInt32) {
+        var ioDataWriteOffset = 0
+        var numberOfSamples = numberOfFrames
+        while numberOfSamples > 0 {
+            if currentRender == nil {
+                currentRender = renderSource?.getAudioOutputRender()
+            }
+            guard let currentRender else {
+                break
+            }
+            let residueLinesize = currentRender.numberOfSamples - currentRenderReadOffset
+            guard residueLinesize > 0 else {
+                self.currentRender = nil
+                continue
+            }
+            if sourceNodeAudioFormat != currentRender.audioFormat {
+                runOnMainThread { [weak self] in
+                    guard let self else {
+                        return
+                    }
+                    self.prepare(audioFormat: currentRender.audioFormat)
+                }
+                return
+            }
+            let framesToCopy = min(numberOfSamples, residueLinesize)
+            let bytesToCopy = Int(framesToCopy * sampleSize)
+            let offset = Int(currentRenderReadOffset * sampleSize)
+            for i in 0 ..< min(ioData.count, currentRender.data.count) {
+                if let source = currentRender.data[i], let destination = ioData[i].mData {
+                    (destination + ioDataWriteOffset).copyMemory(from: source + offset, byteCount: bytesToCopy)
+                }
+            }
+            numberOfSamples -= framesToCopy
+            ioDataWriteOffset += bytesToCopy
+            currentRenderReadOffset += framesToCopy
+        }
+        let sizeCopied = (numberOfFrames - numberOfSamples) * sampleSize
+        for i in 0 ..< ioData.count {
+            let sizeLeft = Int(ioData[i].mDataByteSize - sizeCopied)
+            if sizeLeft > 0 {
+                memset(ioData[i].mData! + Int(sizeCopied), 0, sizeLeft)
+            }
+        }
+    }
+
+    private func audioPlayerDidRenderSample(sampleTimestamp _: AudioTimeStamp) {
+        if let currentRender {
+            let currentPreparePosition = currentRender.timestamp + currentRender.duration * Int64(currentRenderReadOffset) / Int64(currentRender.numberOfSamples)
+            if currentPreparePosition > 0 {
+                var time = currentRender.timebase.cmtime(for: currentPreparePosition)
+                if outputLatency != 0 {
+                    /// AVSampleBufferAudioRenderer不需要处理outputLatency。其他音频输出的都要处理。
+                    /// 没有蓝牙的话，outputLatency为0.015，有蓝牙耳机的话为0.176
+                    time = time - CMTime(seconds: outputLatency, preferredTimescale: time.timescale)
+                }
+                renderSource?.setAudio(time: time, position: currentRender.position)
+            }
+        }
+    }
+}
+
+extension AVAudioEngine {
+    func connect(nodes: [AVAudioNode], format: AVAudioFormat?) {
+        if nodes.count < 2 {
+            return
+        }
+        for i in 0 ..< nodes.count - 1 {
+            connect(nodes[i], to: nodes[i + 1], format: format)
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/AudioGraphPlayer.swift

@@ -0,0 +1,303 @@
+//
+//  AudioGraphPlayer.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/16.
+//
+
+import AudioToolbox
+import AVFAudio
+import CoreAudio
+
+public final class AudioGraphPlayer: AudioOutput, AudioDynamicsProcessor {
+    public private(set) var audioUnitForDynamicsProcessor: AudioUnit
+    private let graph: AUGraph
+    private var audioUnitForMixer: AudioUnit!
+    private var audioUnitForTimePitch: AudioUnit!
+    private var audioUnitForOutput: AudioUnit!
+    private var currentRenderReadOffset = UInt32(0)
+    private var sourceNodeAudioFormat: AVAudioFormat?
+    private var sampleSize = UInt32(MemoryLayout<Float>.size)
+    #if os(macOS)
+    private var volumeBeforeMute: Float = 0.0
+    #endif
+    private var outputLatency = TimeInterval(0)
+    public weak var renderSource: OutputRenderSourceDelegate?
+    private var currentRender: AudioFrame? {
+        didSet {
+            if currentRender == nil {
+                currentRenderReadOffset = 0
+            }
+        }
+    }
+
+    public func play() {
+        AUGraphStart(graph)
+    }
+
+    public func pause() {
+        AUGraphStop(graph)
+    }
+
+    public var playbackRate: Float {
+        get {
+            var playbackRate = AudioUnitParameterValue(0.0)
+            AudioUnitGetParameter(audioUnitForTimePitch, kNewTimePitchParam_Rate, kAudioUnitScope_Global, 0, &playbackRate)
+            return playbackRate
+        }
+        set {
+            AudioUnitSetParameter(audioUnitForTimePitch, kNewTimePitchParam_Rate, kAudioUnitScope_Global, 0, newValue, 0)
+        }
+    }
+
+    public var volume: Float {
+        get {
+            var volume = AudioUnitParameterValue(0.0)
+            #if os(macOS)
+            let inID = kStereoMixerParam_Volume
+            #else
+            let inID = kMultiChannelMixerParam_Volume
+            #endif
+            AudioUnitGetParameter(audioUnitForMixer, inID, kAudioUnitScope_Input, 0, &volume)
+            return volume
+        }
+        set {
+            #if os(macOS)
+            let inID = kStereoMixerParam_Volume
+            #else
+            let inID = kMultiChannelMixerParam_Volume
+            #endif
+            AudioUnitSetParameter(audioUnitForMixer, inID, kAudioUnitScope_Input, 0, newValue, 0)
+        }
+    }
+
+    public var isMuted: Bool {
+        get {
+            var value = AudioUnitParameterValue(1.0)
+            #if os(macOS)
+            AudioUnitGetParameter(audioUnitForMixer, kStereoMixerParam_Volume, kAudioUnitScope_Input, 0, &value)
+            #else
+            AudioUnitGetParameter(audioUnitForMixer, kMultiChannelMixerParam_Enable, kAudioUnitScope_Input, 0, &value)
+            #endif
+            return value == 0
+        }
+        set {
+            let value = newValue ? 0 : 1
+            #if os(macOS)
+            if value == 0 {
+                volumeBeforeMute = volume
+            }
+            AudioUnitSetParameter(audioUnitForMixer, kStereoMixerParam_Volume, kAudioUnitScope_Input, 0, min(Float(value), volumeBeforeMute), 0)
+            #else
+            AudioUnitSetParameter(audioUnitForMixer, kMultiChannelMixerParam_Enable, kAudioUnitScope_Input, 0, AudioUnitParameterValue(value), 0)
+            #endif
+        }
+    }
+
+    public init() {
+        var newGraph: AUGraph!
+        NewAUGraph(&newGraph)
+        graph = newGraph
+        var descriptionForTimePitch = AudioComponentDescription()
+        descriptionForTimePitch.componentType = kAudioUnitType_FormatConverter
+        descriptionForTimePitch.componentSubType = kAudioUnitSubType_NewTimePitch
+        descriptionForTimePitch.componentManufacturer = kAudioUnitManufacturer_Apple
+        var descriptionForDynamicsProcessor = AudioComponentDescription()
+        descriptionForDynamicsProcessor.componentType = kAudioUnitType_Effect
+        descriptionForDynamicsProcessor.componentManufacturer = kAudioUnitManufacturer_Apple
+        descriptionForDynamicsProcessor.componentSubType = kAudioUnitSubType_DynamicsProcessor
+        var descriptionForMixer = AudioComponentDescription()
+        descriptionForMixer.componentType = kAudioUnitType_Mixer
+        descriptionForMixer.componentManufacturer = kAudioUnitManufacturer_Apple
+        #if os(macOS)
+        descriptionForMixer.componentSubType = kAudioUnitSubType_StereoMixer
+        #else
+        descriptionForMixer.componentSubType = kAudioUnitSubType_MultiChannelMixer
+        #endif
+        var descriptionForOutput = AudioComponentDescription()
+        descriptionForOutput.componentType = kAudioUnitType_Output
+        descriptionForOutput.componentManufacturer = kAudioUnitManufacturer_Apple
+        #if os(macOS)
+        descriptionForOutput.componentSubType = kAudioUnitSubType_DefaultOutput
+        #else
+        descriptionForOutput.componentSubType = kAudioUnitSubType_RemoteIO
+        #endif
+        var nodeForTimePitch = AUNode()
+        var nodeForDynamicsProcessor = AUNode()
+        var nodeForMixer = AUNode()
+        var nodeForOutput = AUNode()
+        AUGraphAddNode(graph, &descriptionForTimePitch, &nodeForTimePitch)
+        AUGraphAddNode(graph, &descriptionForMixer, &nodeForMixer)
+        AUGraphAddNode(graph, &descriptionForDynamicsProcessor, &nodeForDynamicsProcessor)
+        AUGraphAddNode(graph, &descriptionForOutput, &nodeForOutput)
+        AUGraphOpen(graph)
+        AUGraphConnectNodeInput(graph, nodeForTimePitch, 0, nodeForDynamicsProcessor, 0)
+        AUGraphConnectNodeInput(graph, nodeForDynamicsProcessor, 0, nodeForMixer, 0)
+        AUGraphConnectNodeInput(graph, nodeForMixer, 0, nodeForOutput, 0)
+        AUGraphNodeInfo(graph, nodeForTimePitch, &descriptionForTimePitch, &audioUnitForTimePitch)
+        var audioUnitForDynamicsProcessor: AudioUnit?
+        AUGraphNodeInfo(graph, nodeForDynamicsProcessor, &descriptionForDynamicsProcessor, &audioUnitForDynamicsProcessor)
+        self.audioUnitForDynamicsProcessor = audioUnitForDynamicsProcessor!
+        AUGraphNodeInfo(graph, nodeForMixer, &descriptionForMixer, &audioUnitForMixer)
+        AUGraphNodeInfo(graph, nodeForOutput, &descriptionForOutput, &audioUnitForOutput)
+        addRenderNotify(audioUnit: audioUnitForOutput)
+        var value = UInt32(1)
+        AudioUnitSetProperty(audioUnitForTimePitch,
+                             kAudioOutputUnitProperty_EnableIO,
+                             kAudioUnitScope_Output, 0,
+                             &value,
+                             UInt32(MemoryLayout<UInt32>.size))
+        #if !os(macOS)
+        outputLatency = AVAudioSession.sharedInstance().outputLatency
+        #endif
+    }
+
+    public func prepare(audioFormat: AVAudioFormat) {
+        if sourceNodeAudioFormat == audioFormat {
+            return
+        }
+        sourceNodeAudioFormat = audioFormat
+        #if !os(macOS)
+        try? AVAudioSession.sharedInstance().setPreferredOutputNumberOfChannels(Int(audioFormat.channelCount))
+        KSLog("[audio] set preferredOutputNumberOfChannels: \(audioFormat.channelCount)")
+        #endif
+        sampleSize = audioFormat.sampleSize
+        var audioStreamBasicDescription = audioFormat.formatDescription.audioStreamBasicDescription
+        let audioStreamBasicDescriptionSize = UInt32(MemoryLayout<AudioStreamBasicDescription>.size)
+        let channelLayout = audioFormat.channelLayout?.layout
+        for unit in [audioUnitForTimePitch, audioUnitForDynamicsProcessor, audioUnitForMixer, audioUnitForOutput] {
+            guard let unit else { continue }
+            AudioUnitSetProperty(unit,
+                                 kAudioUnitProperty_StreamFormat,
+                                 kAudioUnitScope_Input, 0,
+                                 &audioStreamBasicDescription,
+                                 audioStreamBasicDescriptionSize)
+            AudioUnitSetProperty(unit,
+                                 kAudioUnitProperty_AudioChannelLayout,
+                                 kAudioUnitScope_Input, 0,
+                                 channelLayout,
+                                 UInt32(MemoryLayout<AudioChannelLayout>.size))
+            if unit != audioUnitForOutput {
+                AudioUnitSetProperty(unit,
+                                     kAudioUnitProperty_StreamFormat,
+                                     kAudioUnitScope_Output, 0,
+                                     &audioStreamBasicDescription,
+                                     audioStreamBasicDescriptionSize)
+                AudioUnitSetProperty(unit,
+                                     kAudioUnitProperty_AudioChannelLayout,
+                                     kAudioUnitScope_Output, 0,
+                                     channelLayout,
+                                     UInt32(MemoryLayout<AudioChannelLayout>.size))
+            }
+            if unit == audioUnitForTimePitch {
+                var inputCallbackStruct = renderCallbackStruct()
+                AudioUnitSetProperty(unit,
+                                     kAudioUnitProperty_SetRenderCallback,
+                                     kAudioUnitScope_Input, 0,
+                                     &inputCallbackStruct,
+                                     UInt32(MemoryLayout<AURenderCallbackStruct>.size))
+            }
+        }
+        AUGraphInitialize(graph)
+    }
+
+    public func flush() {
+        currentRender = nil
+        #if !os(macOS)
+        outputLatency = AVAudioSession.sharedInstance().outputLatency
+        #endif
+    }
+
+    deinit {
+        AUGraphStop(graph)
+        AUGraphUninitialize(graph)
+        AUGraphClose(graph)
+        DisposeAUGraph(graph)
+    }
+}
+
+extension AudioGraphPlayer {
+    private func renderCallbackStruct() -> AURenderCallbackStruct {
+        var inputCallbackStruct = AURenderCallbackStruct()
+        inputCallbackStruct.inputProcRefCon = Unmanaged.passUnretained(self).toOpaque()
+        inputCallbackStruct.inputProc = { refCon, _, _, _, inNumberFrames, ioData in
+            guard let ioData else {
+                return noErr
+            }
+            let `self` = Unmanaged<AudioGraphPlayer>.fromOpaque(refCon).takeUnretainedValue()
+            self.audioPlayerShouldInputData(ioData: UnsafeMutableAudioBufferListPointer(ioData), numberOfFrames: inNumberFrames)
+            return noErr
+        }
+        return inputCallbackStruct
+    }
+
+    private func addRenderNotify(audioUnit: AudioUnit) {
+        AudioUnitAddRenderNotify(audioUnit, { refCon, ioActionFlags, inTimeStamp, _, _, _ in
+            let `self` = Unmanaged<AudioGraphPlayer>.fromOpaque(refCon).takeUnretainedValue()
+            autoreleasepool {
+                if ioActionFlags.pointee.contains(.unitRenderAction_PostRender) {
+                    self.audioPlayerDidRenderSample(sampleTimestamp: inTimeStamp.pointee)
+                }
+            }
+            return noErr
+        }, Unmanaged.passUnretained(self).toOpaque())
+    }
+
+    private func audioPlayerShouldInputData(ioData: UnsafeMutableAudioBufferListPointer, numberOfFrames: UInt32) {
+        var ioDataWriteOffset = 0
+        var numberOfSamples = numberOfFrames
+        while numberOfSamples > 0 {
+            if currentRender == nil {
+                currentRender = renderSource?.getAudioOutputRender()
+            }
+            guard let currentRender else {
+                break
+            }
+            let residueLinesize = currentRender.numberOfSamples - currentRenderReadOffset
+            guard residueLinesize > 0 else {
+                self.currentRender = nil
+                continue
+            }
+            if sourceNodeAudioFormat != currentRender.audioFormat {
+                runOnMainThread { [weak self] in
+                    guard let self else {
+                        return
+                    }
+                    self.prepare(audioFormat: currentRender.audioFormat)
+                }
+                return
+            }
+            let framesToCopy = min(numberOfSamples, residueLinesize)
+            let bytesToCopy = Int(framesToCopy * sampleSize)
+            let offset = Int(currentRenderReadOffset * sampleSize)
+            for i in 0 ..< min(ioData.count, currentRender.data.count) {
+                if let source = currentRender.data[i], let destination = ioData[i].mData {
+                    (destination + ioDataWriteOffset).copyMemory(from: source + offset, byteCount: bytesToCopy)
+                }
+            }
+            numberOfSamples -= framesToCopy
+            ioDataWriteOffset += bytesToCopy
+            currentRenderReadOffset += framesToCopy
+        }
+        let sizeCopied = (numberOfFrames - numberOfSamples) * sampleSize
+        for i in 0 ..< ioData.count {
+            let sizeLeft = Int(ioData[i].mDataByteSize - sizeCopied)
+            if sizeLeft > 0 {
+                memset(ioData[i].mData! + Int(sizeCopied), 0, sizeLeft)
+            }
+        }
+    }
+
+    private func audioPlayerDidRenderSample(sampleTimestamp _: AudioTimeStamp) {
+        if let currentRender {
+            let currentPreparePosition = currentRender.timestamp + currentRender.duration * Int64(currentRenderReadOffset) / Int64(currentRender.numberOfSamples)
+            if currentPreparePosition > 0 {
+                var time = currentRender.timebase.cmtime(for: currentPreparePosition)
+                if outputLatency != 0 {
+                    time = time - CMTime(seconds: outputLatency, preferredTimescale: time.timescale)
+                }
+                renderSource?.setAudio(time: time, position: currentRender.position)
+            }
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/AudioRendererPlayer.swift

@@ -0,0 +1,143 @@
+//
+//  AudioRendererPlayer.swift
+//  KSPlayer
+//
+//  Created by kintan on 2022/12/2.
+//
+
+import AVFoundation
+import Foundation
+
+public class AudioRendererPlayer: AudioOutput {
+    public var playbackRate: Float = 1 {
+        didSet {
+            if !isPaused {
+                synchronizer.rate = playbackRate
+            }
+        }
+    }
+
+    public var volume: Float {
+        get {
+            renderer.volume
+        }
+        set {
+            renderer.volume = newValue
+        }
+    }
+
+    public var isMuted: Bool {
+        get {
+            renderer.isMuted
+        }
+        set {
+            renderer.isMuted = newValue
+        }
+    }
+
+    public weak var renderSource: OutputRenderSourceDelegate?
+    private var periodicTimeObserver: Any?
+    private let renderer = AVSampleBufferAudioRenderer()
+    private let synchronizer = AVSampleBufferRenderSynchronizer()
+    private let serializationQueue = DispatchQueue(label: "ks.player.serialization.queue")
+    var isPaused: Bool {
+        synchronizer.rate == 0
+    }
+
+    public required init() {
+        synchronizer.addRenderer(renderer)
+        if #available(macOS 11.3, iOS 14.5, tvOS 14.5, *) {
+            synchronizer.delaysRateChangeUntilHasSufficientMediaData = false
+        }
+//        if #available(tvOS 15.0, iOS 15.0, macOS 12.0, *) {
+//            renderer.allowedAudioSpatializationFormats = .monoStereoAndMultichannel
+//        }
+    }
+
+    public func prepare(audioFormat: AVAudioFormat) {
+        #if !os(macOS)
+        try? AVAudioSession.sharedInstance().setPreferredOutputNumberOfChannels(Int(audioFormat.channelCount))
+        KSLog("[audio] set preferredOutputNumberOfChannels: \(audioFormat.channelCount)")
+        #endif
+    }
+
+    public func play() {
+        let time: CMTime
+        if #available(macOS 11.3, iOS 14.5, tvOS 14.5, *) {
+            // 判断是否有足够的缓存，有的话就用当前的时间。seek的话，需要清空缓存，这样才能取到最新的时间。
+            if renderer.hasSufficientMediaDataForReliablePlaybackStart {
+                time = synchronizer.currentTime()
+            } else {
+                if let currentRender = renderSource?.getAudioOutputRender() {
+                    time = currentRender.cmtime
+                } else {
+                    time = .zero
+                }
+            }
+        } else {
+            if let currentRender = renderSource?.getAudioOutputRender() {
+                time = currentRender.cmtime
+            } else {
+                time = .zero
+            }
+        }
+        synchronizer.setRate(playbackRate, time: time)
+        // 要手动的调用下，这样才能及时的更新音频的时间
+        renderSource?.setAudio(time: time, position: -1)
+        renderer.requestMediaDataWhenReady(on: serializationQueue) { [weak self] in
+            guard let self else {
+                return
+            }
+            self.request()
+        }
+        periodicTimeObserver = synchronizer.addPeriodicTimeObserver(forInterval: CMTime(seconds: 0.01), queue: .main) { [weak self] time in
+            guard let self else {
+                return
+            }
+            self.renderSource?.setAudio(time: time, position: -1)
+        }
+    }
+
+    public func pause() {
+        synchronizer.rate = 0
+        renderer.stopRequestingMediaData()
+        if let periodicTimeObserver {
+            synchronizer.removeTimeObserver(periodicTimeObserver)
+            self.periodicTimeObserver = nil
+        }
+    }
+
+    public func flush() {
+        renderer.flush()
+    }
+
+    private func request() {
+        while renderer.isReadyForMoreMediaData, !isPaused {
+            guard var render = renderSource?.getAudioOutputRender() else {
+                break
+            }
+            var array = [render]
+            let loopCount = Int32(render.audioFormat.sampleRate) / 20 / Int32(render.numberOfSamples) - 2
+            if loopCount > 0 {
+                for _ in 0 ..< loopCount {
+                    if let render = renderSource?.getAudioOutputRender() {
+                        array.append(render)
+                    }
+                }
+            }
+            if array.count > 1 {
+                render = AudioFrame(array: array)
+            }
+            if let sampleBuffer = render.toCMSampleBuffer() {
+                let channelCount = render.audioFormat.channelCount
+                renderer.audioTimePitchAlgorithm = channelCount > 2 ? .spectral : .timeDomain
+                renderer.enqueue(sampleBuffer)
+                #if !os(macOS)
+                if AVAudioSession.sharedInstance().preferredInputNumberOfChannels != channelCount {
+                    try? AVAudioSession.sharedInstance().setPreferredOutputNumberOfChannels(Int(channelCount))
+                }
+                #endif
+            }
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/AudioUnitPlayer.swift

@@ -0,0 +1,197 @@
+//
+//  AudioUnitPlayer.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/16.
+//
+
+import AudioToolbox
+import AVFAudio
+import CoreAudio
+
+public final class AudioUnitPlayer: AudioOutput {
+    private var audioUnitForOutput: AudioUnit!
+    private var currentRenderReadOffset = UInt32(0)
+    private var sourceNodeAudioFormat: AVAudioFormat?
+    private var sampleSize = UInt32(MemoryLayout<Float>.size)
+    public weak var renderSource: OutputRenderSourceDelegate?
+    private var currentRender: AudioFrame? {
+        didSet {
+            if currentRender == nil {
+                currentRenderReadOffset = 0
+            }
+        }
+    }
+
+    private var isPlaying = false
+    public func play() {
+        if !isPlaying {
+            isPlaying = true
+            AudioOutputUnitStart(audioUnitForOutput)
+        }
+    }
+
+    public func pause() {
+        if isPlaying {
+            isPlaying = false
+            AudioOutputUnitStop(audioUnitForOutput)
+        }
+    }
+
+    public var playbackRate: Float = 1
+    public var volume: Float = 1
+    public var isMuted: Bool = false
+    private var outputLatency = TimeInterval(0)
+    public init() {
+        var descriptionForOutput = AudioComponentDescription()
+        descriptionForOutput.componentType = kAudioUnitType_Output
+        descriptionForOutput.componentManufacturer = kAudioUnitManufacturer_Apple
+        #if os(macOS)
+        descriptionForOutput.componentSubType = kAudioUnitSubType_HALOutput
+        #else
+        descriptionForOutput.componentSubType = kAudioUnitSubType_RemoteIO
+        outputLatency = AVAudioSession.sharedInstance().outputLatency
+        #endif
+        let nodeForOutput = AudioComponentFindNext(nil, &descriptionForOutput)
+        AudioComponentInstanceNew(nodeForOutput!, &audioUnitForOutput)
+        var value = UInt32(1)
+        AudioUnitSetProperty(audioUnitForOutput,
+                             kAudioOutputUnitProperty_EnableIO,
+                             kAudioUnitScope_Output, 0,
+                             &value,
+                             UInt32(MemoryLayout<UInt32>.size))
+    }
+
+    public func prepare(audioFormat: AVAudioFormat) {
+        if sourceNodeAudioFormat == audioFormat {
+            return
+        }
+        sourceNodeAudioFormat = audioFormat
+        #if !os(macOS)
+        try? AVAudioSession.sharedInstance().setPreferredOutputNumberOfChannels(Int(audioFormat.channelCount))
+        KSLog("[audio] set preferredOutputNumberOfChannels: \(audioFormat.channelCount)")
+        #endif
+        sampleSize = audioFormat.sampleSize
+        var audioStreamBasicDescription = audioFormat.formatDescription.audioStreamBasicDescription
+        AudioUnitSetProperty(audioUnitForOutput,
+                             kAudioUnitProperty_StreamFormat,
+                             kAudioUnitScope_Input, 0,
+                             &audioStreamBasicDescription,
+                             UInt32(MemoryLayout<AudioStreamBasicDescription>.size))
+        let channelLayout = audioFormat.channelLayout?.layout
+        AudioUnitSetProperty(audioUnitForOutput,
+                             kAudioUnitProperty_AudioChannelLayout,
+                             kAudioUnitScope_Input, 0,
+                             channelLayout,
+                             UInt32(MemoryLayout<AudioChannelLayout>.size))
+        var inputCallbackStruct = renderCallbackStruct()
+        AudioUnitSetProperty(audioUnitForOutput,
+                             kAudioUnitProperty_SetRenderCallback,
+                             kAudioUnitScope_Input, 0,
+                             &inputCallbackStruct,
+                             UInt32(MemoryLayout<AURenderCallbackStruct>.size))
+        addRenderNotify(audioUnit: audioUnitForOutput)
+        AudioUnitInitialize(audioUnitForOutput)
+    }
+
+    public func flush() {
+        currentRender = nil
+        #if !os(macOS)
+        outputLatency = AVAudioSession.sharedInstance().outputLatency
+        #endif
+    }
+
+    deinit {
+        AudioUnitUninitialize(audioUnitForOutput)
+    }
+}
+
+extension AudioUnitPlayer {
+    private func renderCallbackStruct() -> AURenderCallbackStruct {
+        var inputCallbackStruct = AURenderCallbackStruct()
+        inputCallbackStruct.inputProcRefCon = Unmanaged.passUnretained(self).toOpaque()
+        inputCallbackStruct.inputProc = { refCon, _, _, _, inNumberFrames, ioData in
+            guard let ioData else {
+                return noErr
+            }
+            let `self` = Unmanaged<AudioUnitPlayer>.fromOpaque(refCon).takeUnretainedValue()
+            self.audioPlayerShouldInputData(ioData: UnsafeMutableAudioBufferListPointer(ioData), numberOfFrames: inNumberFrames)
+            return noErr
+        }
+        return inputCallbackStruct
+    }
+
+    private func addRenderNotify(audioUnit: AudioUnit) {
+        AudioUnitAddRenderNotify(audioUnit, { refCon, ioActionFlags, inTimeStamp, _, _, _ in
+            let `self` = Unmanaged<AudioUnitPlayer>.fromOpaque(refCon).takeUnretainedValue()
+            autoreleasepool {
+                if ioActionFlags.pointee.contains(.unitRenderAction_PostRender) {
+                    self.audioPlayerDidRenderSample(sampleTimestamp: inTimeStamp.pointee)
+                }
+            }
+            return noErr
+        }, Unmanaged.passUnretained(self).toOpaque())
+    }
+
+    private func audioPlayerShouldInputData(ioData: UnsafeMutableAudioBufferListPointer, numberOfFrames: UInt32) {
+        var ioDataWriteOffset = 0
+        var numberOfSamples = numberOfFrames
+        while numberOfSamples > 0 {
+            if currentRender == nil {
+                currentRender = renderSource?.getAudioOutputRender()
+            }
+            guard let currentRender else {
+                break
+            }
+            let residueLinesize = currentRender.numberOfSamples - currentRenderReadOffset
+            guard residueLinesize > 0 else {
+                self.currentRender = nil
+                continue
+            }
+            if sourceNodeAudioFormat != currentRender.audioFormat {
+                runOnMainThread { [weak self] in
+                    guard let self else {
+                        return
+                    }
+                    self.prepare(audioFormat: currentRender.audioFormat)
+                }
+                return
+            }
+            let framesToCopy = min(numberOfSamples, residueLinesize)
+            let bytesToCopy = Int(framesToCopy * sampleSize)
+            let offset = Int(currentRenderReadOffset * sampleSize)
+            for i in 0 ..< min(ioData.count, currentRender.data.count) {
+                if let source = currentRender.data[i], let destination = ioData[i].mData {
+                    if isMuted {
+                        memset(destination + ioDataWriteOffset, 0, bytesToCopy)
+                    } else {
+                        (destination + ioDataWriteOffset).copyMemory(from: source + offset, byteCount: bytesToCopy)
+                    }
+                }
+            }
+            numberOfSamples -= framesToCopy
+            ioDataWriteOffset += bytesToCopy
+            currentRenderReadOffset += framesToCopy
+        }
+        let sizeCopied = (numberOfFrames - numberOfSamples) * sampleSize
+        for i in 0 ..< ioData.count {
+            let sizeLeft = Int(ioData[i].mDataByteSize - sizeCopied)
+            if sizeLeft > 0 {
+                memset(ioData[i].mData! + Int(sizeCopied), 0, sizeLeft)
+            }
+        }
+    }
+
+    private func audioPlayerDidRenderSample(sampleTimestamp _: AudioTimeStamp) {
+        if let currentRender {
+            let currentPreparePosition = currentRender.timestamp + currentRender.duration * Int64(currentRenderReadOffset) / Int64(currentRender.numberOfSamples)
+            if currentPreparePosition > 0 {
+                var time = currentRender.timebase.cmtime(for: currentPreparePosition)
+                if outputLatency != 0 {
+                    time = time - CMTime(seconds: outputLatency, preferredTimescale: time.timescale)
+                }
+                renderSource?.setAudio(time: time, position: currentRender.position)
+            }
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/CircularBuffer.swift

@@ -0,0 +1,183 @@
+//
+//  CircularBuffer.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import Foundation
+
+/// 这个是单生产者，多消费者的阻塞队列和单生产者，多消费者的阻塞环形队列。并且环形队列还要有排序的能力。
+/// 因为seek需要清空队列，所以导致他是多消费者。后续可以看下能不能改成单消费者的。
+public class CircularBuffer<Item: ObjectQueueItem> {
+    private var _buffer = ContiguousArray<Item?>()
+//    private let semaphore = DispatchSemaphore(value: 0)
+    private let condition = NSCondition()
+    private var headIndex = UInt(0)
+    private var tailIndex = UInt(0)
+    private let expanding: Bool
+    private let sorted: Bool
+    private var destroyed = false
+    @inline(__always)
+    private var _count: Int { Int(tailIndex &- headIndex) }
+    @inline(__always)
+    public var count: Int {
+//        condition.lock()
+//        defer { condition.unlock() }
+        Int(tailIndex &- headIndex)
+    }
+
+    public internal(set) var fps: Float = 24
+    public private(set) var maxCount: Int
+    private var mask: UInt
+    public init(initialCapacity: Int = 256, sorted: Bool = false, expanding: Bool = true) {
+        self.expanding = expanding
+        self.sorted = sorted
+        let capacity = initialCapacity.nextPowerOf2()
+        _buffer = ContiguousArray<Item?>(repeating: nil, count: Int(capacity))
+        maxCount = Int(capacity)
+        mask = UInt(maxCount - 1)
+        assert(_buffer.count == capacity)
+    }
+
+    public func push(_ value: Item) {
+        condition.lock()
+        defer { condition.unlock() }
+        if destroyed {
+            return
+        }
+        if _buffer[Int(tailIndex & mask)] != nil {
+            assertionFailure("value is not nil of headIndex: \(headIndex),tailIndex: \(tailIndex), bufferCount: \(_buffer.count), mask: \(mask)")
+        }
+        _buffer[Int(tailIndex & mask)] = value
+        if sorted {
+            // 不用sort进行排序，这个比较高效
+            var index = tailIndex
+            while index > headIndex {
+                guard let item = _buffer[Int((index - 1) & mask)] else {
+                    assertionFailure("value is nil of index: \((index - 1) & mask) headIndex: \(headIndex),tailIndex: \(tailIndex), bufferCount: \(_buffer.count),  mask: \(mask)")
+                    break
+                }
+                if item.timestamp <= _buffer[Int(index & mask)]!.timestamp {
+                    break
+                }
+                _buffer.swapAt(Int((index - 1) & mask), Int(index & mask))
+                index -= 1
+            }
+        }
+        tailIndex &+= 1
+        if _count >= maxCount {
+            if expanding {
+                // No more room left for another append so grow the buffer now.
+                _doubleCapacity()
+            } else {
+                condition.wait()
+            }
+        } else {
+            // 只有数据了。就signal。因为有可能这是最后的数据了。
+            if _count == 1 {
+                condition.signal()
+            }
+        }
+    }
+
+    public func pop(wait: Bool = false, where predicate: ((Item, Int) -> Bool)? = nil) -> Item? {
+        condition.lock()
+        defer { condition.unlock() }
+        if destroyed {
+            return nil
+        }
+        if headIndex == tailIndex {
+            if wait {
+                condition.wait()
+                if destroyed || headIndex == tailIndex {
+                    return nil
+                }
+            } else {
+                return nil
+            }
+        }
+        let index = Int(headIndex & mask)
+        guard let item = _buffer[index] else {
+            assertionFailure("value is nil of index: \(index) headIndex: \(headIndex),tailIndex: \(tailIndex), bufferCount: \(_buffer.count), mask: \(mask)")
+            return nil
+        }
+        if let predicate, !predicate(item, _count) {
+            return nil
+        } else {
+            headIndex &+= 1
+            _buffer[index] = nil
+            if _count == maxCount >> 1 {
+                condition.signal()
+            }
+            return item
+        }
+    }
+
+    public func search(where predicate: (Item) -> Bool) -> [Item] {
+        condition.lock()
+        defer { condition.unlock() }
+        var i = headIndex
+        var result = [Item]()
+        while i < tailIndex {
+            if let item = _buffer[Int(i & mask)] {
+                if predicate(item) {
+                    result.append(item)
+                    _buffer[Int(i & mask)] = nil
+                    headIndex = i + 1
+                }
+            } else {
+                assertionFailure("value is nil of index: \(i) headIndex: \(headIndex), tailIndex: \(tailIndex), bufferCount: \(_buffer.count), mask: \(mask)")
+                return result
+            }
+            i += 1
+        }
+        return result
+    }
+
+    public func flush() {
+        condition.lock()
+        defer { condition.unlock() }
+        headIndex = 0
+        tailIndex = 0
+        _buffer.removeAll(keepingCapacity: !destroyed)
+        _buffer.append(contentsOf: ContiguousArray<Item?>(repeating: nil, count: destroyed ? 1 : maxCount))
+        condition.broadcast()
+    }
+
+    public func shutdown() {
+        destroyed = true
+        flush()
+    }
+
+    private func _doubleCapacity() {
+        var newBacking: ContiguousArray<Item?> = []
+        let newCapacity = maxCount << 1 // Double the storage.
+        precondition(newCapacity > 0, "Can't double capacity of \(_buffer.count)")
+        assert(newCapacity % 2 == 0)
+        newBacking.reserveCapacity(newCapacity)
+        let head = Int(headIndex & mask)
+        newBacking.append(contentsOf: _buffer[head ..< maxCount])
+        if head > 0 {
+            newBacking.append(contentsOf: _buffer[0 ..< head])
+        }
+        let repeatitionCount = newCapacity &- newBacking.count
+        newBacking.append(contentsOf: repeatElement(nil, count: repeatitionCount))
+        headIndex = 0
+        tailIndex = UInt(newBacking.count &- repeatitionCount)
+        _buffer = newBacking
+        maxCount = newCapacity
+        mask = UInt(maxCount - 1)
+    }
+}
+
+extension FixedWidthInteger {
+    /// Returns the next power of two.
+    @inline(__always)
+    func nextPowerOf2() -> Self {
+        guard self != 0 else {
+            return 1
+        }
+        return 1 << (Self.bitWidth - (self - 1).leadingZeroBitCount)
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/EmbedDataSouce.swift

@@ -0,0 +1,29 @@
+//
+//  EmbedDataSouce.swift
+//  KSPlayer-7de52535
+//
+//  Created by kintan on 2018/8/7.
+//
+import Foundation
+import Libavcodec
+import Libavutil
+
+extension FFmpegAssetTrack: SubtitleInfo {
+    public var subtitleID: String {
+        String(trackID)
+    }
+}
+
+extension FFmpegAssetTrack: KSSubtitleProtocol {
+    public func search(for time: TimeInterval) -> [SubtitlePart] {
+        subtitle?.outputRenderQueue.search { item -> Bool in
+            item.part == time
+        }.map(\.part) ?? []
+    }
+}
+
+extension KSMEPlayer: SubtitleDataSouce {
+    public var infos: [any SubtitleInfo] {
+        tracks(mediaType: .subtitle).compactMap { $0 as? (any SubtitleInfo) }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/FFmpegAssetTrack.swift

@@ -0,0 +1,277 @@
+//
+//  FFmpegAssetTrack.swift
+//  KSPlayer
+//
+//  Created by kintan on 2023/2/12.
+//
+
+import AVFoundation
+import FFmpegKit
+import Libavformat
+
+public class FFmpegAssetTrack: MediaPlayerTrack {
+    public private(set) var trackID: Int32 = 0
+    public let codecName: String
+    public var name: String = ""
+    public private(set) var languageCode: String?
+    public var nominalFrameRate: Float = 0
+    public private(set) var avgFrameRate = Timebase.defaultValue
+    public private(set) var realFrameRate = Timebase.defaultValue
+    public private(set) var bitRate: Int64 = 0
+    public let mediaType: AVFoundation.AVMediaType
+    public let formatName: String?
+    public let bitDepth: Int32
+    private var stream: UnsafeMutablePointer<AVStream>?
+    var startTime = CMTime.zero
+    var codecpar: AVCodecParameters
+    var timebase: Timebase = .defaultValue
+    let bitsPerRawSample: Int32
+    // audio
+    public let audioDescriptor: AudioDescriptor?
+    // subtitle
+    public let isImageSubtitle: Bool
+    public var delay: TimeInterval = 0
+    var subtitle: SyncPlayerItemTrack<SubtitleFrame>?
+    // video
+    public private(set) var rotation: Int16 = 0
+    public var dovi: DOVIDecoderConfigurationRecord?
+    public let fieldOrder: FFmpegFieldOrder
+    public let formatDescription: CMFormatDescription?
+    var closedCaptionsTrack: FFmpegAssetTrack?
+    let isConvertNALSize: Bool
+    var seekByBytes = false
+    public var description: String {
+        var description = codecName
+        if let formatName {
+            description += ", \(formatName)"
+        }
+        if bitsPerRawSample > 0 {
+            description += "(\(bitsPerRawSample.kmFormatted) bit)"
+        }
+        if let audioDescriptor {
+            description += ", \(audioDescriptor.sampleRate)Hz"
+            description += ", \(audioDescriptor.channel.description)"
+        }
+        if let formatDescription {
+            if mediaType == .video {
+                let naturalSize = formatDescription.naturalSize
+                description += ", \(Int(naturalSize.width))x\(Int(naturalSize.height))"
+                description += String(format: ", %.2f fps", nominalFrameRate)
+            }
+        }
+        if bitRate > 0 {
+            description += ", \(bitRate.kmFormatted)bps"
+        }
+        if let language {
+            description += "(\(language))"
+        }
+        return description
+    }
+
+    convenience init?(stream: UnsafeMutablePointer<AVStream>) {
+        let codecpar = stream.pointee.codecpar.pointee
+        self.init(codecpar: codecpar)
+        self.stream = stream
+        let metadata = toDictionary(stream.pointee.metadata)
+        if let value = metadata["variant_bitrate"] ?? metadata["BPS"], let bitRate = Int64(value) {
+            self.bitRate = bitRate
+        }
+        trackID = stream.pointee.index
+        var timebase = Timebase(stream.pointee.time_base)
+        if timebase.num <= 0 || timebase.den <= 0 {
+            timebase = Timebase(num: 1, den: 1000)
+        }
+        if stream.pointee.start_time != Int64.min {
+            startTime = timebase.cmtime(for: stream.pointee.start_time)
+        }
+        self.timebase = timebase
+        avgFrameRate = Timebase(stream.pointee.avg_frame_rate)
+        realFrameRate = Timebase(stream.pointee.r_frame_rate)
+        if mediaType == .audio {
+            var frameSize = codecpar.frame_size
+            if frameSize < 1 {
+                frameSize = timebase.den / timebase.num
+            }
+            nominalFrameRate = max(Float(codecpar.sample_rate / frameSize), 48)
+        } else {
+            if stream.pointee.duration > 0, stream.pointee.nb_frames > 0, stream.pointee.nb_frames != stream.pointee.duration {
+                nominalFrameRate = Float(stream.pointee.nb_frames) * Float(timebase.den) / Float(stream.pointee.duration) * Float(timebase.num)
+            } else if avgFrameRate.den > 0, avgFrameRate.num > 0 {
+                nominalFrameRate = Float(avgFrameRate.num) / Float(avgFrameRate.den)
+            } else {
+                nominalFrameRate = 24
+            }
+        }
+
+        if let value = metadata["language"], value != "und" {
+            languageCode = value
+        } else {
+            languageCode = nil
+        }
+        if let value = metadata["title"] {
+            name = value
+        } else {
+            name = languageCode ?? codecName
+        }
+        // AV_DISPOSITION_DEFAULT
+        if mediaType == .subtitle {
+            isEnabled = !isImageSubtitle || stream.pointee.disposition & AV_DISPOSITION_FORCED == AV_DISPOSITION_FORCED
+            if stream.pointee.disposition & AV_DISPOSITION_HEARING_IMPAIRED == AV_DISPOSITION_HEARING_IMPAIRED {
+                name += "(hearing impaired)"
+            }
+        }
+        //        var buf = [Int8](repeating: 0, count: 256)
+        //        avcodec_string(&buf, buf.count, codecpar, 0)
+    }
+
+    init?(codecpar: AVCodecParameters) {
+        self.codecpar = codecpar
+        bitRate = codecpar.bit_rate
+        // codec_tag byte order is LSB first CMFormatDescription.MediaSubType(rawValue: codecpar.codec_tag.bigEndian)
+        let codecType = codecpar.codec_id.mediaSubType
+        var codecName = ""
+        if let descriptor = avcodec_descriptor_get(codecpar.codec_id) {
+            codecName += String(cString: descriptor.pointee.name)
+            if let profile = descriptor.pointee.profiles {
+                codecName += " (\(String(cString: profile.pointee.name)))"
+            }
+        } else {
+            codecName = ""
+        }
+        self.codecName = codecName
+        fieldOrder = FFmpegFieldOrder(rawValue: UInt8(codecpar.field_order.rawValue)) ?? .unknown
+        var formatDescriptionOut: CMFormatDescription?
+        if codecpar.codec_type == AVMEDIA_TYPE_AUDIO {
+            mediaType = .audio
+            audioDescriptor = AudioDescriptor(codecpar: codecpar)
+            isConvertNALSize = false
+            bitDepth = 0
+            let layout = codecpar.ch_layout
+            let channelsPerFrame = UInt32(layout.nb_channels)
+            let sampleFormat = AVSampleFormat(codecpar.format)
+            let bytesPerSample = UInt32(av_get_bytes_per_sample(sampleFormat))
+            let formatFlags = ((sampleFormat == AV_SAMPLE_FMT_FLT || sampleFormat == AV_SAMPLE_FMT_DBL) ? kAudioFormatFlagIsFloat : sampleFormat == AV_SAMPLE_FMT_U8 ? 0 : kAudioFormatFlagIsSignedInteger) | kAudioFormatFlagIsPacked
+            var audioStreamBasicDescription = AudioStreamBasicDescription(mSampleRate: Float64(codecpar.sample_rate), mFormatID: codecType.rawValue, mFormatFlags: formatFlags, mBytesPerPacket: bytesPerSample * channelsPerFrame, mFramesPerPacket: 1, mBytesPerFrame: bytesPerSample * channelsPerFrame, mChannelsPerFrame: channelsPerFrame, mBitsPerChannel: bytesPerSample * 8, mReserved: 0)
+            _ = CMAudioFormatDescriptionCreate(allocator: kCFAllocatorDefault, asbd: &audioStreamBasicDescription, layoutSize: 0, layout: nil, magicCookieSize: 0, magicCookie: nil, extensions: nil, formatDescriptionOut: &formatDescriptionOut)
+            if let name = av_get_sample_fmt_name(sampleFormat) {
+                formatName = String(cString: name)
+            } else {
+                formatName = nil
+            }
+        } else if codecpar.codec_type == AVMEDIA_TYPE_VIDEO {
+            audioDescriptor = nil
+            mediaType = .video
+            if codecpar.nb_coded_side_data > 0, let sideDatas = codecpar.coded_side_data {
+                for i in 0 ..< codecpar.nb_coded_side_data {
+                    let sideData = sideDatas[Int(i)]
+                    if sideData.type == AV_PKT_DATA_DOVI_CONF {
+                        dovi = sideData.data.withMemoryRebound(to: DOVIDecoderConfigurationRecord.self, capacity: 1) { $0 }.pointee
+                    } else if sideData.type == AV_PKT_DATA_DISPLAYMATRIX {
+                        let matrix = sideData.data.withMemoryRebound(to: Int32.self, capacity: 1) { $0 }
+                        rotation = Int16(Int(-av_display_rotation_get(matrix)) % 360)
+                    }
+                }
+            }
+            let sar = codecpar.sample_aspect_ratio.size
+            var extradataSize = Int32(0)
+            var extradata = codecpar.extradata
+            let atomsData: Data?
+            if let extradata {
+                extradataSize = codecpar.extradata_size
+                if extradataSize >= 5, extradata[4] == 0xFE {
+                    extradata[4] = 0xFF
+                    isConvertNALSize = true
+                } else {
+                    isConvertNALSize = false
+                }
+                atomsData = Data(bytes: extradata, count: Int(extradataSize))
+            } else {
+                if codecType.rawValue == kCMVideoCodecType_VP9 {
+                    // ff_videotoolbox_vpcc_extradata_create
+                    var ioContext: UnsafeMutablePointer<AVIOContext>?
+                    guard avio_open_dyn_buf(&ioContext) == 0 else {
+                        return nil
+                    }
+                    ff_isom_write_vpcc(nil, ioContext, nil, 0, &self.codecpar)
+                    extradataSize = avio_close_dyn_buf(ioContext, &extradata)
+                    guard let extradata else {
+                        return nil
+                    }
+                    var data = Data()
+                    var array: [UInt8] = [1, 0, 0, 0]
+                    data.append(&array, count: 4)
+                    data.append(extradata, count: Int(extradataSize))
+                    atomsData = data
+                } else {
+                    atomsData = nil
+                }
+                isConvertNALSize = false
+            }
+            let format = AVPixelFormat(rawValue: codecpar.format)
+            bitDepth = format.bitDepth
+            let fullRange = codecpar.color_range == AVCOL_RANGE_JPEG
+            let dic: NSMutableDictionary = [
+                kCVImageBufferChromaLocationBottomFieldKey: kCVImageBufferChromaLocation_Left,
+                kCVImageBufferChromaLocationTopFieldKey: kCVImageBufferChromaLocation_Left,
+                kCMFormatDescriptionExtension_Depth: format.bitDepth * Int32(format.planeCount),
+                kCMFormatDescriptionExtension_FullRangeVideo: fullRange,
+                codecType.rawValue == kCMVideoCodecType_HEVC ? "EnableHardwareAcceleratedVideoDecoder" : "RequireHardwareAcceleratedVideoDecoder": true,
+            ]
+            // kCMFormatDescriptionExtension_BitsPerComponent
+            if let atomsData {
+                dic[kCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms] = [codecType.rawValue.avc: atomsData]
+            }
+            dic[kCVPixelBufferPixelFormatTypeKey] = format.osType(fullRange: fullRange)
+            dic[kCVImageBufferPixelAspectRatioKey] = sar.aspectRatio
+            dic[kCVImageBufferColorPrimariesKey] = codecpar.color_primaries.colorPrimaries as String?
+            dic[kCVImageBufferTransferFunctionKey] = codecpar.color_trc.transferFunction as String?
+            dic[kCVImageBufferYCbCrMatrixKey] = codecpar.color_space.ycbcrMatrix as String?
+            // swiftlint:disable line_length
+            _ = CMVideoFormatDescriptionCreate(allocator: kCFAllocatorDefault, codecType: codecType.rawValue, width: codecpar.width, height: codecpar.height, extensions: dic, formatDescriptionOut: &formatDescriptionOut)
+            // swiftlint:enable line_length
+            if let name = av_get_pix_fmt_name(format) {
+                formatName = String(cString: name)
+            } else {
+                formatName = nil
+            }
+        } else if codecpar.codec_type == AVMEDIA_TYPE_SUBTITLE {
+            mediaType = .subtitle
+            audioDescriptor = nil
+            formatName = nil
+            bitDepth = 0
+            isConvertNALSize = false
+            _ = CMFormatDescriptionCreate(allocator: kCFAllocatorDefault, mediaType: kCMMediaType_Subtitle, mediaSubType: codecType.rawValue, extensions: nil, formatDescriptionOut: &formatDescriptionOut)
+        } else {
+            bitDepth = 0
+            return nil
+        }
+        formatDescription = formatDescriptionOut
+        bitsPerRawSample = codecpar.bits_per_raw_sample
+        isImageSubtitle = [AV_CODEC_ID_DVD_SUBTITLE, AV_CODEC_ID_DVB_SUBTITLE, AV_CODEC_ID_DVB_TELETEXT, AV_CODEC_ID_HDMV_PGS_SUBTITLE].contains(codecpar.codec_id)
+        trackID = 0
+    }
+
+    func createContext(options: KSOptions) throws -> UnsafeMutablePointer<AVCodecContext> {
+        try codecpar.createContext(options: options)
+    }
+
+    public var isEnabled: Bool {
+        get {
+            stream?.pointee.discard == AVDISCARD_DEFAULT
+        }
+        set {
+            var discard = newValue ? AVDISCARD_DEFAULT : AVDISCARD_ALL
+            if mediaType == .subtitle, !isImageSubtitle {
+                discard = AVDISCARD_DEFAULT
+            }
+            stream?.pointee.discard = discard
+        }
+    }
+}
+
+extension FFmpegAssetTrack {
+    var pixelFormatType: OSType? {
+        let format = AVPixelFormat(codecpar.format)
+        return format.osType(fullRange: formatDescription?.fullRangeVideo ?? false)
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/FFmpegDecode.swift

@@ -0,0 +1,206 @@
+//
+//  FFmpegDecode.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import AVFoundation
+import Foundation
+import Libavcodec
+
+class FFmpegDecode: DecodeProtocol {
+    private let options: KSOptions
+    private var coreFrame: UnsafeMutablePointer<AVFrame>? = av_frame_alloc()
+    private var codecContext: UnsafeMutablePointer<AVCodecContext>?
+    private var bestEffortTimestamp = Int64(0)
+    private let frameChange: FrameChange
+    private let filter: MEFilter
+    private let seekByBytes: Bool
+    required init(assetTrack: FFmpegAssetTrack, options: KSOptions) {
+        self.options = options
+        seekByBytes = assetTrack.seekByBytes
+        do {
+            codecContext = try assetTrack.createContext(options: options)
+        } catch {
+            KSLog(error as CustomStringConvertible)
+        }
+        codecContext?.pointee.time_base = assetTrack.timebase.rational
+        filter = MEFilter(timebase: assetTrack.timebase, isAudio: assetTrack.mediaType == .audio, nominalFrameRate: assetTrack.nominalFrameRate, options: options)
+        if assetTrack.mediaType == .video {
+            frameChange = VideoSwresample(fps: assetTrack.nominalFrameRate, isDovi: assetTrack.dovi != nil)
+        } else {
+            frameChange = AudioSwresample(audioDescriptor: assetTrack.audioDescriptor!)
+        }
+    }
+
+    func decodeFrame(from packet: Packet, completionHandler: @escaping (Result<MEFrame, Error>) -> Void) {
+        guard let codecContext, avcodec_send_packet(codecContext, packet.corePacket) == 0 else {
+            return
+        }
+        // 需要avcodec_send_packet之后，properties的值才会变成FF_CODEC_PROPERTY_CLOSED_CAPTIONS
+        if packet.assetTrack.mediaType == .video {
+            if Int32(codecContext.pointee.properties) & FF_CODEC_PROPERTY_CLOSED_CAPTIONS != 0, packet.assetTrack.closedCaptionsTrack == nil {
+                var codecpar = AVCodecParameters()
+                codecpar.codec_type = AVMEDIA_TYPE_SUBTITLE
+                codecpar.codec_id = AV_CODEC_ID_EIA_608
+                if let subtitleAssetTrack = FFmpegAssetTrack(codecpar: codecpar) {
+                    subtitleAssetTrack.name = "Closed Captions"
+                    subtitleAssetTrack.startTime = packet.assetTrack.startTime
+                    subtitleAssetTrack.timebase = packet.assetTrack.timebase
+                    let subtitle = SyncPlayerItemTrack<SubtitleFrame>(mediaType: .subtitle, frameCapacity: 255, options: options)
+                    subtitleAssetTrack.subtitle = subtitle
+                    packet.assetTrack.closedCaptionsTrack = subtitleAssetTrack
+                    subtitle.decode()
+                }
+            }
+        }
+        while true {
+            let result = avcodec_receive_frame(codecContext, coreFrame)
+            if result == 0, let inputFrame = coreFrame {
+                var displayData: MasteringDisplayMetadata?
+                var contentData: ContentLightMetadata?
+                var ambientViewingEnvironment: AmbientViewingEnvironment?
+                // filter之后，side_data信息会丢失，所以放在这里
+                if inputFrame.pointee.nb_side_data > 0 {
+                    for i in 0 ..< inputFrame.pointee.nb_side_data {
+                        if let sideData = inputFrame.pointee.side_data[Int(i)]?.pointee {
+                            if sideData.type == AV_FRAME_DATA_A53_CC {
+                                if let closedCaptionsTrack = packet.assetTrack.closedCaptionsTrack,
+                                   let subtitle = closedCaptionsTrack.subtitle
+                                {
+                                    let closedCaptionsPacket = Packet()
+                                    if let corePacket = packet.corePacket {
+                                        closedCaptionsPacket.corePacket?.pointee.pts = corePacket.pointee.pts
+                                        closedCaptionsPacket.corePacket?.pointee.dts = corePacket.pointee.dts
+                                        closedCaptionsPacket.corePacket?.pointee.pos = corePacket.pointee.pos
+                                        closedCaptionsPacket.corePacket?.pointee.time_base = corePacket.pointee.time_base
+                                        closedCaptionsPacket.corePacket?.pointee.stream_index = corePacket.pointee.stream_index
+                                    }
+                                    closedCaptionsPacket.corePacket?.pointee.flags |= AV_PKT_FLAG_KEY
+                                    closedCaptionsPacket.corePacket?.pointee.size = Int32(sideData.size)
+                                    let buffer = av_buffer_ref(sideData.buf)
+                                    closedCaptionsPacket.corePacket?.pointee.data = buffer?.pointee.data
+                                    closedCaptionsPacket.corePacket?.pointee.buf = buffer
+                                    closedCaptionsPacket.assetTrack = closedCaptionsTrack
+                                    subtitle.putPacket(packet: closedCaptionsPacket)
+                                }
+                            } else if sideData.type == AV_FRAME_DATA_SEI_UNREGISTERED {
+                                let size = sideData.size
+                                if size > AV_UUID_LEN {
+                                    let str = String(cString: sideData.data.advanced(by: Int(AV_UUID_LEN)))
+                                    options.sei(string: str)
+                                }
+                            } else if sideData.type == AV_FRAME_DATA_DOVI_RPU_BUFFER {
+                                let data = sideData.data.withMemoryRebound(to: [UInt8].self, capacity: 1) { $0 }
+                            } else if sideData.type == AV_FRAME_DATA_DOVI_METADATA { // AVDOVIMetadata
+                                let data = sideData.data.withMemoryRebound(to: AVDOVIMetadata.self, capacity: 1) { $0 }
+                                let header = av_dovi_get_header(data)
+                                let mapping = av_dovi_get_mapping(data)
+                                let color = av_dovi_get_color(data)
+//                                frame.corePixelBuffer?.transferFunction = kCVImageBufferTransferFunction_ITU_R_2020
+                            } else if sideData.type == AV_FRAME_DATA_DYNAMIC_HDR_PLUS { // AVDynamicHDRPlus
+                                let data = sideData.data.withMemoryRebound(to: AVDynamicHDRPlus.self, capacity: 1) { $0 }.pointee
+                            } else if sideData.type == AV_FRAME_DATA_DYNAMIC_HDR_VIVID { // AVDynamicHDRVivid
+                                let data = sideData.data.withMemoryRebound(to: AVDynamicHDRVivid.self, capacity: 1) { $0 }.pointee
+                            } else if sideData.type == AV_FRAME_DATA_MASTERING_DISPLAY_METADATA {
+                                let data = sideData.data.withMemoryRebound(to: AVMasteringDisplayMetadata.self, capacity: 1) { $0 }.pointee
+                                displayData = MasteringDisplayMetadata(
+                                    display_primaries_r_x: UInt16(data.display_primaries.0.0.num).bigEndian,
+                                    display_primaries_r_y: UInt16(data.display_primaries.0.1.num).bigEndian,
+                                    display_primaries_g_x: UInt16(data.display_primaries.1.0.num).bigEndian,
+                                    display_primaries_g_y: UInt16(data.display_primaries.1.1.num).bigEndian,
+                                    display_primaries_b_x: UInt16(data.display_primaries.2.1.num).bigEndian,
+                                    display_primaries_b_y: UInt16(data.display_primaries.2.1.num).bigEndian,
+                                    white_point_x: UInt16(data.white_point.0.num).bigEndian,
+                                    white_point_y: UInt16(data.white_point.1.num).bigEndian,
+                                    minLuminance: UInt32(data.min_luminance.num).bigEndian,
+                                    maxLuminance: UInt32(data.max_luminance.num).bigEndian
+                                )
+                            } else if sideData.type == AV_FRAME_DATA_CONTENT_LIGHT_LEVEL {
+                                let data = sideData.data.withMemoryRebound(to: AVContentLightMetadata.self, capacity: 1) { $0 }.pointee
+                                contentData = ContentLightMetadata(
+                                    MaxCLL: UInt16(data.MaxCLL).bigEndian,
+                                    MaxFALL: UInt16(data.MaxFALL).bigEndian
+                                )
+                            } else if sideData.type == AV_FRAME_DATA_AMBIENT_VIEWING_ENVIRONMENT {
+                                let data = sideData.data.withMemoryRebound(to: AVAmbientViewingEnvironment.self, capacity: 1) { $0 }.pointee
+                                ambientViewingEnvironment = AmbientViewingEnvironment(
+                                    ambient_illuminance: UInt32(data.ambient_illuminance.num).bigEndian,
+                                    ambient_light_x: UInt16(data.ambient_light_x.num).bigEndian,
+                                    ambient_light_y: UInt16(data.ambient_light_y.num).bigEndian
+                                )
+                            }
+                        }
+                    }
+                }
+                filter.filter(options: options, inputFrame: inputFrame) { avframe in
+                    do {
+                        var frame = try frameChange.change(avframe: avframe)
+                        if let videoFrame = frame as? VideoVTBFrame, let pixelBuffer = videoFrame.corePixelBuffer {
+                            if let pixelBuffer = pixelBuffer as? PixelBuffer {
+                                pixelBuffer.formatDescription = packet.assetTrack.formatDescription
+                            }
+                            if displayData != nil || contentData != nil || ambientViewingEnvironment != nil {
+                                videoFrame.edrMetaData = EDRMetaData(displayData: displayData, contentData: contentData, ambientViewingEnvironment: ambientViewingEnvironment)
+                            }
+                        }
+                        frame.timebase = filter.timebase
+                        //                frame.timebase = Timebase(avframe.pointee.time_base)
+                        frame.size = packet.size
+                        frame.position = packet.position
+                        frame.duration = avframe.pointee.duration
+                        if frame.duration == 0, avframe.pointee.sample_rate != 0, frame.timebase.num != 0 {
+                            frame.duration = Int64(avframe.pointee.nb_samples) * Int64(frame.timebase.den) / (Int64(avframe.pointee.sample_rate) * Int64(frame.timebase.num))
+                        }
+                        var timestamp = avframe.pointee.best_effort_timestamp
+                        if timestamp < 0 {
+                            timestamp = avframe.pointee.pts
+                        }
+                        if timestamp < 0 {
+                            timestamp = avframe.pointee.pkt_dts
+                        }
+                        if timestamp < 0 {
+                            timestamp = bestEffortTimestamp
+                        }
+                        frame.timestamp = timestamp
+                        bestEffortTimestamp = timestamp &+ frame.duration
+                        completionHandler(.success(frame))
+                    } catch {
+                        completionHandler(.failure(error))
+                    }
+                }
+            } else {
+                if result == AVError.eof.code {
+                    avcodec_flush_buffers(codecContext)
+                    break
+                } else if result == AVError.tryAgain.code {
+                    break
+                } else {
+                    let error = NSError(errorCode: packet.assetTrack.mediaType == .audio ? .codecAudioReceiveFrame : .codecVideoReceiveFrame, avErrorCode: result)
+                    KSLog(error)
+                    completionHandler(.failure(error))
+                }
+            }
+        }
+    }
+
+    func doFlushCodec() {
+        bestEffortTimestamp = Int64(0)
+        // seek之后要清空下，不然解码可能还会有缓存，导致返回的数据是之前seek的。
+        avcodec_flush_buffers(codecContext)
+    }
+
+    func shutdown() {
+        av_frame_free(&coreFrame)
+        avcodec_free_context(&codecContext)
+        frameChange.shutdown()
+    }
+
+    func decode() {
+        bestEffortTimestamp = Int64(0)
+        if codecContext != nil {
+            avcodec_flush_buffers(codecContext)
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/Filter.swift

@@ -0,0 +1,150 @@
+//
+//  Filter.swift
+//  KSPlayer
+//
+//  Created by kintan on 2021/8/7.
+//
+
+import Foundation
+import Libavfilter
+import Libavutil
+
+class MEFilter {
+    private var graph: UnsafeMutablePointer<AVFilterGraph>?
+    private var bufferSrcContext: UnsafeMutablePointer<AVFilterContext>?
+    private var bufferSinkContext: UnsafeMutablePointer<AVFilterContext>?
+    private var filters: String?
+    let timebase: Timebase
+    private let isAudio: Bool
+    private var params = AVBufferSrcParameters()
+    private let nominalFrameRate: Float
+    deinit {
+        graph?.pointee.opaque = nil
+        avfilter_graph_free(&graph)
+    }
+
+    public init(timebase: Timebase, isAudio: Bool, nominalFrameRate: Float, options: KSOptions) {
+        graph = avfilter_graph_alloc()
+        graph?.pointee.opaque = Unmanaged.passUnretained(options).toOpaque()
+        self.timebase = timebase
+        self.isAudio = isAudio
+        self.nominalFrameRate = nominalFrameRate
+    }
+
+    private func setup(filters: String) -> Bool {
+        var inputs = avfilter_inout_alloc()
+        var outputs = avfilter_inout_alloc()
+        var ret = avfilter_graph_parse2(graph, filters, &inputs, &outputs)
+        guard ret >= 0, let graph, let inputs, let outputs else {
+            avfilter_inout_free(&inputs)
+            avfilter_inout_free(&outputs)
+            return false
+        }
+        let bufferSink = avfilter_get_by_name(isAudio ? "abuffersink" : "buffersink")
+        ret = avfilter_graph_create_filter(&bufferSinkContext, bufferSink, "out", nil, nil, graph)
+        guard ret >= 0 else { return false }
+        ret = avfilter_link(outputs.pointee.filter_ctx, UInt32(outputs.pointee.pad_idx), bufferSinkContext, 0)
+        guard ret >= 0 else { return false }
+        let buffer = avfilter_get_by_name(isAudio ? "abuffer" : "buffer")
+        bufferSrcContext = avfilter_graph_alloc_filter(graph, buffer, "in")
+        guard bufferSrcContext != nil else { return false }
+        av_buffersrc_parameters_set(bufferSrcContext, &params)
+        ret = avfilter_init_str(bufferSrcContext, nil)
+        guard ret >= 0 else { return false }
+        ret = avfilter_link(bufferSrcContext, 0, inputs.pointee.filter_ctx, UInt32(inputs.pointee.pad_idx))
+        guard ret >= 0 else { return false }
+        if let ctx = params.hw_frames_ctx {
+            let framesCtxData = UnsafeMutableRawPointer(ctx.pointee.data).bindMemory(to: AVHWFramesContext.self, capacity: 1)
+            inputs.pointee.filter_ctx.pointee.hw_device_ctx = framesCtxData.pointee.device_ref
+//                    outputs.pointee.filter_ctx.pointee.hw_device_ctx = framesCtxData.pointee.device_ref
+//                    bufferSrcContext?.pointee.hw_device_ctx = framesCtxData.pointee.device_ref
+//                    bufferSinkContext?.pointee.hw_device_ctx = framesCtxData.pointee.device_ref
+        }
+        ret = avfilter_graph_config(graph, nil)
+        guard ret >= 0 else { return false }
+        return true
+    }
+
+    private func setup2(filters: String) -> Bool {
+        guard let graph else {
+            return false
+        }
+        let bufferName = isAudio ? "abuffer" : "buffer"
+        let bufferSrc = avfilter_get_by_name(bufferName)
+        var ret = avfilter_graph_create_filter(&bufferSrcContext, bufferSrc, "ksplayer_\(bufferName)", params.arg, nil, graph)
+        av_buffersrc_parameters_set(bufferSrcContext, &params)
+        let bufferSink = avfilter_get_by_name(bufferName + "sink")
+        ret = avfilter_graph_create_filter(&bufferSinkContext, bufferSink, "ksplayer_\(bufferName)sink", nil, nil, graph)
+        guard ret >= 0 else { return false }
+        //        av_opt_set_int_list(bufferSinkContext, "pix_fmts", [AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE] AV_PIX_FMT_NONE,AV_OPT_SEARCH_CHILDREN)
+        var inputs = avfilter_inout_alloc()
+        var outputs = avfilter_inout_alloc()
+        outputs?.pointee.name = strdup("in")
+        outputs?.pointee.filter_ctx = bufferSrcContext
+        outputs?.pointee.pad_idx = 0
+        outputs?.pointee.next = nil
+        inputs?.pointee.name = strdup("out")
+        inputs?.pointee.filter_ctx = bufferSinkContext
+        inputs?.pointee.pad_idx = 0
+        inputs?.pointee.next = nil
+        let filterNb = Int(graph.pointee.nb_filters)
+        ret = avfilter_graph_parse_ptr(graph, filters, &inputs, &outputs, nil)
+        guard ret >= 0 else {
+            avfilter_inout_free(&inputs)
+            avfilter_inout_free(&outputs)
+            return false
+        }
+        for i in 0 ..< Int(graph.pointee.nb_filters) - filterNb {
+            swap(&graph.pointee.filters[i], &graph.pointee.filters[i + filterNb])
+        }
+        ret = avfilter_graph_config(graph, nil)
+        guard ret >= 0 else { return false }
+        return true
+    }
+
+    public func filter(options: KSOptions, inputFrame: UnsafeMutablePointer<AVFrame>, completionHandler: (UnsafeMutablePointer<AVFrame>) -> Void) {
+        let filters: String
+        if isAudio {
+            filters = options.audioFilters.joined(separator: ",")
+        } else {
+            if options.autoDeInterlace, !options.videoFilters.contains("idet") {
+                options.videoFilters.append("idet")
+            }
+            filters = options.videoFilters.joined(separator: ",")
+        }
+        guard !filters.isEmpty else {
+            completionHandler(inputFrame)
+            return
+        }
+        var params = AVBufferSrcParameters()
+        params.format = inputFrame.pointee.format
+        params.time_base = timebase.rational
+        params.width = inputFrame.pointee.width
+        params.height = inputFrame.pointee.height
+        params.sample_aspect_ratio = inputFrame.pointee.sample_aspect_ratio
+        params.frame_rate = AVRational(num: 1, den: Int32(nominalFrameRate))
+        if let ctx = inputFrame.pointee.hw_frames_ctx {
+            params.hw_frames_ctx = av_buffer_ref(ctx)
+        }
+        params.sample_rate = inputFrame.pointee.sample_rate
+        params.ch_layout = inputFrame.pointee.ch_layout
+        if self.params != params || self.filters != filters {
+            self.params = params
+            self.filters = filters
+            if !setup(filters: filters) {
+                completionHandler(inputFrame)
+                return
+            }
+        }
+        let ret = av_buffersrc_add_frame_flags(bufferSrcContext, inputFrame, 0)
+        if ret < 0 {
+            return
+        }
+        while av_buffersink_get_frame_flags(bufferSinkContext, inputFrame, 0) >= 0 {
+//                timebase = Timebase(av_buffersink_get_time_base(bufferSinkContext))
+            completionHandler(inputFrame)
+            // 一定要加av_frame_unref，不然会内存泄漏。
+            av_frame_unref(inputFrame)
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/KSMEPlayer.swift

@@ -0,0 +1,588 @@
+//
+//  KSMEPlayer.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import AVFoundation
+import AVKit
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+
+public class KSMEPlayer: NSObject {
+    private var loopCount = 1
+    private var playerItem: MEPlayerItem
+    public let audioOutput: AudioOutput
+    private var options: KSOptions
+    private var bufferingCountDownTimer: Timer?
+    public private(set) var videoOutput: (VideoOutput & UIView)? {
+        didSet {
+            oldValue?.invalidate()
+            runOnMainThread {
+                oldValue?.removeFromSuperview()
+            }
+        }
+    }
+
+    public private(set) var bufferingProgress = 0 {
+        willSet {
+            runOnMainThread { [weak self] in
+                guard let self else { return }
+                delegate?.changeBuffering(player: self, progress: newValue)
+            }
+        }
+    }
+
+    private lazy var _pipController: Any? = {
+        if #available(iOS 15.0, tvOS 15.0, macOS 12.0, *), let videoOutput {
+            let contentSource = AVPictureInPictureController.ContentSource(sampleBufferDisplayLayer: videoOutput.displayLayer, playbackDelegate: self)
+            let pip = KSPictureInPictureController(contentSource: contentSource)
+            return pip
+        } else {
+            return nil
+        }
+    }()
+
+    @available(tvOS 14.0, *)
+    public var pipController: KSPictureInPictureController? {
+        _pipController as? KSPictureInPictureController
+    }
+
+    private lazy var _playbackCoordinator: Any? = {
+        if #available(macOS 12.0, iOS 15.0, tvOS 15.0, *) {
+            let coordinator = AVDelegatingPlaybackCoordinator(playbackControlDelegate: self)
+            coordinator.suspensionReasonsThatTriggerWaiting = [.stallRecovery]
+            return coordinator
+        } else {
+            return nil
+        }
+    }()
+
+    @available(macOS 12.0, iOS 15.0, tvOS 15.0, *)
+    public var playbackCoordinator: AVPlaybackCoordinator {
+        // swiftlint:disable force_cast
+        _playbackCoordinator as! AVPlaybackCoordinator
+        // swiftlint:enable force_cast
+    }
+
+    public private(set) var playableTime = TimeInterval(0)
+    public weak var delegate: MediaPlayerDelegate?
+    public private(set) var isReadyToPlay = false
+    public var allowsExternalPlayback: Bool = false
+    public var usesExternalPlaybackWhileExternalScreenIsActive: Bool = false
+
+    public var playbackRate: Float = 1 {
+        didSet {
+            if playbackRate != audioOutput.playbackRate {
+                audioOutput.playbackRate = playbackRate
+                if audioOutput is AudioUnitPlayer {
+                    var audioFilters = options.audioFilters.filter {
+                        !$0.hasPrefix("atempo=")
+                    }
+                    if playbackRate != 1 {
+                        audioFilters.append("atempo=\(playbackRate)")
+                    }
+                    options.audioFilters = audioFilters
+                }
+            }
+        }
+    }
+
+    public private(set) var loadState = MediaLoadState.idle {
+        didSet {
+            if loadState != oldValue {
+                playOrPause()
+            }
+        }
+    }
+
+    public private(set) var playbackState = MediaPlaybackState.idle {
+        didSet {
+            if playbackState != oldValue {
+                playOrPause()
+                if playbackState == .finished {
+                    runOnMainThread { [weak self] in
+                        guard let self else { return }
+                        delegate?.finish(player: self, error: nil)
+                    }
+                }
+            }
+        }
+    }
+
+    public required init(url: URL, options: KSOptions) {
+        KSOptions.setAudioSession()
+        audioOutput = KSOptions.audioPlayerType.init()
+        playerItem = MEPlayerItem(url: url, options: options)
+        if options.videoDisable {
+            videoOutput = nil
+        } else {
+            videoOutput = KSOptions.videoPlayerType.init(options: options)
+        }
+        self.options = options
+        super.init()
+        playerItem.delegate = self
+        audioOutput.renderSource = playerItem
+        videoOutput?.renderSource = playerItem
+        videoOutput?.displayLayerDelegate = self
+        #if !os(macOS)
+        NotificationCenter.default.addObserver(self, selector: #selector(audioRouteChange), name: AVAudioSession.routeChangeNotification, object: AVAudioSession.sharedInstance())
+        if #available(tvOS 15.0, iOS 15.0, *) {
+            NotificationCenter.default.addObserver(self, selector: #selector(spatialCapabilityChange), name: AVAudioSession.spatialPlaybackCapabilitiesChangedNotification, object: nil)
+        }
+        #endif
+    }
+
+    deinit {
+        #if !os(macOS)
+        try? AVAudioSession.sharedInstance().setPreferredOutputNumberOfChannels(2)
+        #endif
+        NotificationCenter.default.removeObserver(self)
+        videoOutput?.invalidate()
+        playerItem.shutdown()
+    }
+}
+
+// MARK: - private functions
+
+private extension KSMEPlayer {
+    func playOrPause() {
+        runOnMainThread { [weak self] in
+            guard let self else { return }
+            let isPaused = !(self.playbackState == .playing && self.loadState == .playable)
+            if isPaused {
+                self.audioOutput.pause()
+                self.videoOutput?.pause()
+            } else {
+                self.audioOutput.play()
+                self.videoOutput?.play()
+            }
+            self.delegate?.changeLoadState(player: self)
+        }
+    }
+
+    @objc private func spatialCapabilityChange(notification _: Notification) {
+        KSLog("[audio] spatialCapabilityChange")
+        for track in tracks(mediaType: .audio) {
+            (track as? FFmpegAssetTrack)?.audioDescriptor?.updateAudioFormat()
+        }
+    }
+
+    #if !os(macOS)
+    @objc private func audioRouteChange(notification: Notification) {
+        KSLog("[audio] audioRouteChange")
+        guard let reason = notification.userInfo?[AVAudioSessionRouteChangeReasonKey] as? UInt else {
+            return
+        }
+//        let routeChangeReason = AVAudioSession.RouteChangeReason(rawValue: reason)
+//        guard [AVAudioSession.RouteChangeReason.newDeviceAvailable, .oldDeviceUnavailable, .routeConfigurationChange].contains(routeChangeReason) else {
+//            return
+//        }
+        for track in tracks(mediaType: .audio) {
+            (track as? FFmpegAssetTrack)?.audioDescriptor?.updateAudioFormat()
+        }
+        audioOutput.flush()
+    }
+    #endif
+}
+
+extension KSMEPlayer: MEPlayerDelegate {
+    func sourceDidOpened() {
+        isReadyToPlay = true
+        options.readyTime = CACurrentMediaTime()
+        let vidoeTracks = tracks(mediaType: .video)
+        if vidoeTracks.isEmpty {
+            videoOutput = nil
+        }
+        let audioDescriptor = tracks(mediaType: .audio).first { $0.isEnabled }.flatMap {
+            $0 as? FFmpegAssetTrack
+        }?.audioDescriptor
+        runOnMainThread { [weak self] in
+            guard let self else { return }
+            if let audioDescriptor {
+                KSLog("[audio] audio type: \(audioOutput) prepare audioFormat )")
+                audioOutput.prepare(audioFormat: audioDescriptor.audioFormat)
+            }
+            if let controlTimebase = videoOutput?.displayLayer.controlTimebase, options.startPlayTime > 1 {
+                CMTimebaseSetTime(controlTimebase, time: CMTimeMake(value: Int64(options.startPlayTime), timescale: 1))
+            }
+            delegate?.readyToPlay(player: self)
+        }
+    }
+
+    func sourceDidFailed(error: NSError?) {
+        runOnMainThread { [weak self] in
+            guard let self else { return }
+            self.delegate?.finish(player: self, error: error)
+        }
+    }
+
+    func sourceDidFinished() {
+        runOnMainThread { [weak self] in
+            guard let self else { return }
+            if self.options.isLoopPlay {
+                self.loopCount += 1
+                self.delegate?.playBack(player: self, loopCount: self.loopCount)
+                self.audioOutput.play()
+                self.videoOutput?.play()
+            } else {
+                self.playbackState = .finished
+            }
+        }
+    }
+
+    func sourceDidChange(loadingState: LoadingState) {
+        if loadingState.isEndOfFile {
+            playableTime = duration
+        } else {
+            playableTime = currentPlaybackTime + loadingState.loadedTime
+        }
+        if loadState == .playable {
+            if !loadingState.isEndOfFile, loadingState.frameCount == 0, loadingState.packetCount == 0, options.preferredForwardBufferDuration != 0 {
+                loadState = .loading
+                if playbackState == .playing {
+                    runOnMainThread { [weak self] in
+                        // 在主线程更新进度
+                        self?.bufferingProgress = 0
+                    }
+                }
+            }
+        } else {
+            if loadingState.isFirst {
+                if videoOutput?.pixelBuffer == nil {
+                    videoOutput?.readNextFrame()
+                }
+            }
+            var progress = 100
+            if loadingState.isPlayable {
+                loadState = .playable
+            } else {
+                if loadingState.progress.isInfinite {
+                    progress = 100
+                } else if loadingState.progress.isNaN {
+                    progress = 0
+                } else {
+                    progress = min(100, Int(loadingState.progress))
+                }
+            }
+            if playbackState == .playing {
+                runOnMainThread { [weak self] in
+                    // 在主线程更新进度
+                    self?.bufferingProgress = progress
+                }
+            }
+        }
+        if duration == 0, playbackState == .playing, loadState == .playable {
+            if let rate = options.liveAdaptivePlaybackRate(loadingState: loadingState) {
+                playbackRate = rate
+            }
+        }
+    }
+
+    func sourceDidChange(oldBitRate: Int64, newBitrate: Int64) {
+        KSLog("oldBitRate \(oldBitRate) change to newBitrate \(newBitrate)")
+    }
+}
+
+extension KSMEPlayer: MediaPlayerProtocol {
+    public var chapters: [Chapter] {
+        playerItem.chapters
+    }
+
+    public var subtitleDataSouce: SubtitleDataSouce? { self }
+    public var playbackVolume: Float {
+        get {
+            audioOutput.volume
+        }
+        set {
+            audioOutput.volume = newValue
+        }
+    }
+
+    public var isPlaying: Bool { playbackState == .playing }
+
+    @MainActor
+    public var naturalSize: CGSize {
+        options.display == .plane ? playerItem.naturalSize : KSOptions.sceneSize
+    }
+
+    public var isExternalPlaybackActive: Bool { false }
+
+    public var view: UIView? { videoOutput }
+
+    public func replace(url: URL, options: KSOptions) {
+        KSLog("replaceUrl \(self)")
+        shutdown()
+        playerItem.delegate = nil
+        playerItem = MEPlayerItem(url: url, options: options)
+        if options.videoDisable {
+            videoOutput = nil
+        } else if videoOutput == nil {
+            videoOutput = KSOptions.videoPlayerType.init(options: options)
+            videoOutput?.displayLayerDelegate = self
+        }
+        self.options = options
+        playerItem.delegate = self
+        audioOutput.flush()
+        audioOutput.renderSource = playerItem
+        videoOutput?.renderSource = playerItem
+        videoOutput?.options = options
+    }
+
+    public var currentPlaybackTime: TimeInterval {
+        get {
+            playerItem.currentPlaybackTime
+        }
+        set {
+            seek(time: newValue) { _ in }
+        }
+    }
+
+    public var duration: TimeInterval { playerItem.duration }
+
+    public var fileSize: Double { playerItem.fileSize }
+
+    public var seekable: Bool { playerItem.seekable }
+
+    public var dynamicInfo: DynamicInfo? {
+        playerItem.dynamicInfo
+    }
+
+    public func seek(time: TimeInterval, completion: @escaping ((Bool) -> Void)) {
+        let time = max(time, 0)
+        playbackState = .seeking
+        runOnMainThread { [weak self] in
+            self?.bufferingProgress = 0
+        }
+        let seekTime: TimeInterval
+        if time >= duration, options.isLoopPlay {
+            seekTime = 0
+        } else {
+            seekTime = time
+        }
+        playerItem.seek(time: seekTime) { [weak self] result in
+            guard let self else { return }
+            if result {
+                self.audioOutput.flush()
+                runOnMainThread { [weak self] in
+                    guard let self else { return }
+                    if let controlTimebase = self.videoOutput?.displayLayer.controlTimebase {
+                        CMTimebaseSetTime(controlTimebase, time: CMTimeMake(value: Int64(self.currentPlaybackTime), timescale: 1))
+                    }
+                }
+            }
+            completion(result)
+        }
+    }
+
+    public func prepareToPlay() {
+        KSLog("prepareToPlay \(self)")
+        options.prepareTime = CACurrentMediaTime()
+        playerItem.prepareToPlay()
+        bufferingProgress = 0
+    }
+
+    public func play() {
+        KSLog("play \(self)")
+        playbackState = .playing
+        if #available(iOS 15.0, tvOS 15.0, macOS 12.0, *) {
+            pipController?.invalidatePlaybackState()
+        }
+    }
+
+    public func pause() {
+        KSLog("pause \(self)")
+        playbackState = .paused
+        if #available(iOS 15.0, tvOS 15.0, macOS 12.0, *) {
+            pipController?.invalidatePlaybackState()
+        }
+    }
+
+    public func shutdown() {
+        KSLog("shutdown \(self)")
+        playbackState = .stopped
+        loadState = .idle
+        isReadyToPlay = false
+        loopCount = 0
+        playerItem.shutdown()
+        options.prepareTime = 0
+        options.dnsStartTime = 0
+        options.tcpStartTime = 0
+        options.tcpConnectedTime = 0
+        options.openTime = 0
+        options.findTime = 0
+        options.readyTime = 0
+        options.readAudioTime = 0
+        options.readVideoTime = 0
+        options.decodeAudioTime = 0
+        options.decodeVideoTime = 0
+        if KSOptions.isClearVideoWhereReplace {
+            videoOutput?.flush()
+        }
+    }
+
+    @MainActor
+    public var contentMode: UIViewContentMode {
+        get {
+            view?.contentMode ?? .center
+        }
+        set {
+            view?.contentMode = newValue
+        }
+    }
+
+    public func thumbnailImageAtCurrentTime() async -> CGImage? {
+        videoOutput?.pixelBuffer?.cgImage()
+    }
+
+    public func enterBackground() {}
+
+    public func enterForeground() {}
+
+    public var isMuted: Bool {
+        get {
+            audioOutput.isMuted
+        }
+        set {
+            audioOutput.isMuted = newValue
+        }
+    }
+
+    public func tracks(mediaType: AVFoundation.AVMediaType) -> [MediaPlayerTrack] {
+        playerItem.assetTracks.compactMap { track -> MediaPlayerTrack? in
+            if track.mediaType == mediaType {
+                return track
+            } else if mediaType == .subtitle {
+                return track.closedCaptionsTrack
+            }
+            return nil
+        }
+    }
+
+    public func select(track: some MediaPlayerTrack) {
+        let isSeek = playerItem.select(track: track)
+        if isSeek {
+            audioOutput.flush()
+        }
+    }
+}
+
+@available(tvOS 14.0, *)
+extension KSMEPlayer: AVPictureInPictureSampleBufferPlaybackDelegate {
+    public func pictureInPictureController(_: AVPictureInPictureController, setPlaying playing: Bool) {
+        playing ? play() : pause()
+    }
+
+    public func pictureInPictureControllerTimeRangeForPlayback(_: AVPictureInPictureController) -> CMTimeRange {
+        // Handle live streams.
+        if duration == 0 {
+            return CMTimeRange(start: .negativeInfinity, duration: .positiveInfinity)
+        }
+        return CMTimeRange(start: 0, end: duration)
+    }
+
+    public func pictureInPictureControllerIsPlaybackPaused(_: AVPictureInPictureController) -> Bool {
+        !isPlaying
+    }
+
+    public func pictureInPictureController(_: AVPictureInPictureController, didTransitionToRenderSize _: CMVideoDimensions) {}
+    public func pictureInPictureController(_: AVPictureInPictureController, skipByInterval skipInterval: CMTime) async {
+        seek(time: currentPlaybackTime + skipInterval.seconds) { _ in }
+    }
+
+    public func pictureInPictureControllerShouldProhibitBackgroundAudioPlayback(_: AVPictureInPictureController) -> Bool {
+        false
+    }
+}
+
+@available(macOS 12.0, iOS 15.0, tvOS 15.0, *)
+extension KSMEPlayer: AVPlaybackCoordinatorPlaybackControlDelegate {
+    public func playbackCoordinator(_: AVDelegatingPlaybackCoordinator, didIssue playCommand: AVDelegatingPlaybackCoordinatorPlayCommand, completionHandler: @escaping () -> Void) {
+        guard playCommand.expectedCurrentItemIdentifier == (playbackCoordinator as? AVDelegatingPlaybackCoordinator)?.currentItemIdentifier else {
+            completionHandler()
+            return
+        }
+        DispatchQueue.main.async { [weak self] in
+            guard let self else {
+                return
+            }
+            if self.playbackState != .playing {
+                self.play()
+            }
+            completionHandler()
+        }
+    }
+
+    public func playbackCoordinator(_: AVDelegatingPlaybackCoordinator, didIssue pauseCommand: AVDelegatingPlaybackCoordinatorPauseCommand, completionHandler: @escaping () -> Void) {
+        guard pauseCommand.expectedCurrentItemIdentifier == (playbackCoordinator as? AVDelegatingPlaybackCoordinator)?.currentItemIdentifier else {
+            completionHandler()
+            return
+        }
+        DispatchQueue.main.async { [weak self] in
+            guard let self else {
+                return
+            }
+            if self.playbackState != .paused {
+                self.pause()
+            }
+            completionHandler()
+        }
+    }
+
+    public func playbackCoordinator(_: AVDelegatingPlaybackCoordinator, didIssue seekCommand: AVDelegatingPlaybackCoordinatorSeekCommand) async {
+        guard seekCommand.expectedCurrentItemIdentifier == (playbackCoordinator as? AVDelegatingPlaybackCoordinator)?.currentItemIdentifier else {
+            return
+        }
+        let seekTime = fmod(seekCommand.itemTime.seconds, duration)
+        if abs(currentPlaybackTime - seekTime) < CGFLOAT_EPSILON {
+            return
+        }
+        seek(time: seekTime) { _ in }
+    }
+
+    public func playbackCoordinator(_: AVDelegatingPlaybackCoordinator, didIssue bufferingCommand: AVDelegatingPlaybackCoordinatorBufferingCommand, completionHandler: @escaping () -> Void) {
+        guard bufferingCommand.expectedCurrentItemIdentifier == (playbackCoordinator as? AVDelegatingPlaybackCoordinator)?.currentItemIdentifier else {
+            completionHandler()
+            return
+        }
+        DispatchQueue.main.async { [weak self] in
+            guard let self else {
+                return
+            }
+            guard self.loadState != .playable, let countDown = bufferingCommand.completionDueDate?.timeIntervalSinceNow else {
+                completionHandler()
+                return
+            }
+            self.bufferingCountDownTimer?.invalidate()
+            self.bufferingCountDownTimer = nil
+            self.bufferingCountDownTimer = Timer(timeInterval: countDown, repeats: false) { _ in
+                completionHandler()
+            }
+        }
+    }
+}
+
+extension KSMEPlayer: DisplayLayerDelegate {
+    public func change(displayLayer: AVSampleBufferDisplayLayer) {
+        if #available(iOS 15.0, tvOS 15.0, macOS 12.0, *) {
+            let contentSource = AVPictureInPictureController.ContentSource(sampleBufferDisplayLayer: displayLayer, playbackDelegate: self)
+            _pipController = KSPictureInPictureController(contentSource: contentSource)
+            // 更改contentSource会直接crash
+//            pipController?.contentSource = contentSource
+        }
+    }
+}
+
+public extension KSMEPlayer {
+    func startRecord(url: URL) {
+        playerItem.startRecord(url: url)
+    }
+
+    func stoptRecord() {
+        playerItem.stopRecord()
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/MEPlayerItem.swift

@@ -0,0 +1,881 @@
+//
+//  MEPlayerItem.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import AVFoundation
+import FFmpegKit
+import Libavcodec
+import Libavfilter
+import Libavformat
+
+public final class MEPlayerItem: Sendable {
+    private let url: URL
+    private let options: KSOptions
+    private let operationQueue = OperationQueue()
+    private let condition = NSCondition()
+    private var formatCtx: UnsafeMutablePointer<AVFormatContext>?
+    private var outputFormatCtx: UnsafeMutablePointer<AVFormatContext>?
+    private var outputPacket: UnsafeMutablePointer<AVPacket>?
+    private var streamMapping = [Int: Int]()
+    private var openOperation: BlockOperation?
+    private var readOperation: BlockOperation?
+    private var closeOperation: BlockOperation?
+    private var seekingCompletionHandler: ((Bool) -> Void)?
+    // 没有音频数据可以渲染
+    private var isAudioStalled = true
+    private var audioClock = KSClock()
+    private var videoClock = KSClock()
+    private var isFirst = true
+    private var isSeek = false
+    private var allPlayerItemTracks = [PlayerItemTrackProtocol]()
+    private var maxFrameDuration = 10.0
+    private var videoAudioTracks = [CapacityProtocol]()
+    private var videoTrack: SyncPlayerItemTrack<VideoVTBFrame>?
+    private var audioTrack: SyncPlayerItemTrack<AudioFrame>?
+    private(set) var assetTracks = [FFmpegAssetTrack]()
+    private var videoAdaptation: VideoAdaptationState?
+    private var videoDisplayCount = UInt8(0)
+    private var seekByBytes = false
+    private var lastVideoDisplayTime = CACurrentMediaTime()
+    public private(set) var chapters: [Chapter] = []
+    public var currentPlaybackTime: TimeInterval {
+        state == .seeking ? seekTime : (mainClock().time - startTime).seconds
+    }
+
+    private var seekTime = TimeInterval(0)
+    private var startTime = CMTime.zero
+    public private(set) var duration: TimeInterval = 0
+    public private(set) var fileSize: Double = 0
+    public private(set) var naturalSize = CGSize.zero
+    private var error: NSError? {
+        didSet {
+            if error != nil {
+                state = .failed
+            }
+        }
+    }
+
+    private var state = MESourceState.idle {
+        didSet {
+            switch state {
+            case .opened:
+                delegate?.sourceDidOpened()
+            case .reading:
+                timer.fireDate = Date.distantPast
+            case .closed:
+                timer.invalidate()
+            case .failed:
+                delegate?.sourceDidFailed(error: error)
+                timer.fireDate = Date.distantFuture
+            case .idle, .opening, .seeking, .paused, .finished:
+                break
+            }
+        }
+    }
+
+    private lazy var timer: Timer = .scheduledTimer(withTimeInterval: 0.05, repeats: true) { [weak self] _ in
+        self?.codecDidChangeCapacity()
+    }
+
+    lazy var dynamicInfo = DynamicInfo { [weak self] in
+        // metadata可能会实时变化。所以把它放在DynamicInfo里面
+        toDictionary(self?.formatCtx?.pointee.metadata)
+    } bytesRead: { [weak self] in
+        self?.formatCtx?.pointee.pb?.pointee.bytes_read ?? 0
+    } audioBitrate: { [weak self] in
+        Int(8 * (self?.audioTrack?.bitrate ?? 0))
+    } videoBitrate: { [weak self] in
+        Int(8 * (self?.videoTrack?.bitrate ?? 0))
+    }
+
+    private static var onceInitial: Void = {
+        var result = avformat_network_init()
+        av_log_set_callback { ptr, level, format, args in
+            guard let format else {
+                return
+            }
+            var log = String(cString: format)
+            let arguments: CVaListPointer? = args
+            if let arguments {
+                log = NSString(format: log, arguments: arguments) as String
+            }
+            if let ptr {
+                let avclass = ptr.assumingMemoryBound(to: UnsafePointer<AVClass>.self).pointee
+                if avclass == avfilter_get_class() {
+                    let context = ptr.assumingMemoryBound(to: AVFilterContext.self).pointee
+                    if let opaque = context.graph?.pointee.opaque {
+                        let options = Unmanaged<KSOptions>.fromOpaque(opaque).takeUnretainedValue()
+                        options.filter(log: log)
+                    }
+                }
+            }
+            // 找不到解码器
+            if log.hasPrefix("parser not found for codec") {
+                KSLog(level: .error, log)
+            }
+            KSLog(level: LogLevel(rawValue: level) ?? .warning, log)
+        }
+    }()
+
+    weak var delegate: MEPlayerDelegate?
+    public init(url: URL, options: KSOptions) {
+        self.url = url
+        self.options = options
+        timer.fireDate = Date.distantFuture
+        operationQueue.name = "KSPlayer_" + String(describing: self).components(separatedBy: ".").last!
+        operationQueue.maxConcurrentOperationCount = 1
+        operationQueue.qualityOfService = .userInteractive
+        _ = MEPlayerItem.onceInitial
+    }
+
+    func select(track: some MediaPlayerTrack) -> Bool {
+        if track.isEnabled {
+            return false
+        }
+        assetTracks.filter { $0.mediaType == track.mediaType }.forEach {
+            $0.isEnabled = track === $0
+        }
+        guard let assetTrack = track as? FFmpegAssetTrack else {
+            return false
+        }
+        if assetTrack.mediaType == .video {
+            findBestAudio(videoTrack: assetTrack)
+        } else if assetTrack.mediaType == .subtitle {
+            if assetTrack.isImageSubtitle {
+                if !options.isSeekImageSubtitle {
+                    return false
+                }
+            } else {
+                return false
+            }
+        }
+        seek(time: currentPlaybackTime) { _ in
+        }
+        return true
+    }
+}
+
+// MARK: private functions
+
+extension MEPlayerItem {
+    private func openThread() {
+        avformat_close_input(&self.formatCtx)
+        formatCtx = avformat_alloc_context()
+        guard let formatCtx else {
+            error = NSError(errorCode: .formatCreate)
+            return
+        }
+        var interruptCB = AVIOInterruptCB()
+        interruptCB.opaque = Unmanaged.passUnretained(self).toOpaque()
+        interruptCB.callback = { ctx -> Int32 in
+            guard let ctx else {
+                return 0
+            }
+            let formatContext = Unmanaged<MEPlayerItem>.fromOpaque(ctx).takeUnretainedValue()
+            switch formatContext.state {
+            case .finished, .closed, .failed:
+                return 1
+            default:
+                return 0
+            }
+        }
+        formatCtx.pointee.interrupt_callback = interruptCB
+        // avformat_close_input这个函数会调用io_close2。但是自定义协议是不会调用io_close2这个函数
+//        formatCtx.pointee.io_close2 = { _, _ -> Int32 in
+//            0
+//        }
+        setHttpProxy()
+        var avOptions = options.formatContextOptions.avOptions
+        if let pb = options.process(url: url) {
+            // 如果要自定义协议的话，那就用avio_alloc_context，对formatCtx.pointee.pb赋值
+            formatCtx.pointee.pb = pb.getContext()
+        }
+        let urlString: String
+        if url.isFileURL {
+            urlString = url.path
+        } else {
+            urlString = url.absoluteString
+        }
+        var result = avformat_open_input(&self.formatCtx, urlString, nil, &avOptions)
+        av_dict_free(&avOptions)
+        if result == AVError.eof.code {
+            state = .finished
+            delegate?.sourceDidFinished()
+            return
+        }
+        guard result == 0 else {
+            error = .init(errorCode: .formatOpenInput, avErrorCode: result)
+            avformat_close_input(&self.formatCtx)
+            return
+        }
+        options.openTime = CACurrentMediaTime()
+        formatCtx.pointee.flags |= AVFMT_FLAG_GENPTS
+        if options.nobuffer {
+            formatCtx.pointee.flags |= AVFMT_FLAG_NOBUFFER
+        }
+        if let probesize = options.probesize {
+            formatCtx.pointee.probesize = probesize
+        }
+        if let maxAnalyzeDuration = options.maxAnalyzeDuration {
+            formatCtx.pointee.max_analyze_duration = maxAnalyzeDuration
+        }
+        result = avformat_find_stream_info(formatCtx, nil)
+        guard result == 0 else {
+            error = .init(errorCode: .formatFindStreamInfo, avErrorCode: result)
+            avformat_close_input(&self.formatCtx)
+            return
+        }
+        // FIXME: hack, ffplay maybe should not use avio_feof() to test for the end
+        formatCtx.pointee.pb?.pointee.eof_reached = 0
+        let flags = formatCtx.pointee.iformat.pointee.flags
+        maxFrameDuration = flags & AVFMT_TS_DISCONT == AVFMT_TS_DISCONT ? 10.0 : 3600.0
+        options.findTime = CACurrentMediaTime()
+        options.formatName = String(cString: formatCtx.pointee.iformat.pointee.name)
+        seekByBytes = (flags & AVFMT_NO_BYTE_SEEK == 0) && (flags & AVFMT_TS_DISCONT != 0) && options.formatName != "ogg"
+        if formatCtx.pointee.start_time != Int64.min {
+            startTime = CMTime(value: formatCtx.pointee.start_time, timescale: AV_TIME_BASE)
+            videoClock.time = startTime
+            audioClock.time = startTime
+        }
+        duration = TimeInterval(max(formatCtx.pointee.duration, 0) / Int64(AV_TIME_BASE))
+        fileSize = Double(formatCtx.pointee.bit_rate) * duration / 8
+        createCodec(formatCtx: formatCtx)
+        if formatCtx.pointee.nb_chapters > 0 {
+            chapters.removeAll()
+            for i in 0 ..< formatCtx.pointee.nb_chapters {
+                if let chapter = formatCtx.pointee.chapters[Int(i)]?.pointee {
+                    let timeBase = Timebase(chapter.time_base)
+                    let start = timeBase.cmtime(for: chapter.start).seconds
+                    let end = timeBase.cmtime(for: chapter.end).seconds
+                    let metadata = toDictionary(chapter.metadata)
+                    let title = metadata["title"] ?? ""
+                    chapters.append(Chapter(start: start, end: end, title: title))
+                }
+            }
+        }
+
+        if let outputURL = options.outputURL {
+            startRecord(url: outputURL)
+        }
+        if videoTrack == nil, audioTrack == nil {
+            state = .failed
+        } else {
+            state = .opened
+            read()
+        }
+    }
+
+    func startRecord(url: URL) {
+        stopRecord()
+        let filename = url.isFileURL ? url.path : url.absoluteString
+        var ret = avformat_alloc_output_context2(&outputFormatCtx, nil, nil, filename)
+        guard let outputFormatCtx, let formatCtx else {
+            KSLog(NSError(errorCode: .formatOutputCreate, avErrorCode: ret))
+            return
+        }
+        var index = 0
+        var audioIndex: Int?
+        var videoIndex: Int?
+        let formatName = outputFormatCtx.pointee.oformat.pointee.name.flatMap { String(cString: $0) }
+        for i in 0 ..< Int(formatCtx.pointee.nb_streams) {
+            if let inputStream = formatCtx.pointee.streams[i] {
+                let codecType = inputStream.pointee.codecpar.pointee.codec_type
+                if [AVMEDIA_TYPE_AUDIO, AVMEDIA_TYPE_VIDEO, AVMEDIA_TYPE_SUBTITLE].contains(codecType) {
+                    if codecType == AVMEDIA_TYPE_AUDIO {
+                        if let audioIndex {
+                            streamMapping[i] = audioIndex
+                            continue
+                        } else {
+                            audioIndex = index
+                        }
+                    } else if codecType == AVMEDIA_TYPE_VIDEO {
+                        if let videoIndex {
+                            streamMapping[i] = videoIndex
+                            continue
+                        } else {
+                            videoIndex = index
+                        }
+                    }
+                    if let outStream = avformat_new_stream(outputFormatCtx, nil) {
+                        streamMapping[i] = index
+                        index += 1
+                        avcodec_parameters_copy(outStream.pointee.codecpar, inputStream.pointee.codecpar)
+                        if codecType == AVMEDIA_TYPE_SUBTITLE, formatName == "mp4" || formatName == "mov" {
+                            outStream.pointee.codecpar.pointee.codec_id = AV_CODEC_ID_MOV_TEXT
+                        }
+                        if inputStream.pointee.codecpar.pointee.codec_id == AV_CODEC_ID_HEVC {
+                            outStream.pointee.codecpar.pointee.codec_tag = CMFormatDescription.MediaSubType.hevc.rawValue.bigEndian
+                        } else {
+                            outStream.pointee.codecpar.pointee.codec_tag = 0
+                        }
+                    }
+                }
+            }
+        }
+        avio_open(&(outputFormatCtx.pointee.pb), filename, AVIO_FLAG_WRITE)
+        ret = avformat_write_header(outputFormatCtx, nil)
+        guard ret >= 0 else {
+            KSLog(NSError(errorCode: .formatWriteHeader, avErrorCode: ret))
+            avformat_close_input(&self.outputFormatCtx)
+            return
+        }
+        outputPacket = av_packet_alloc()
+    }
+
+    private func createCodec(formatCtx: UnsafeMutablePointer<AVFormatContext>) {
+        allPlayerItemTracks.removeAll()
+        assetTracks.removeAll()
+        videoAdaptation = nil
+        videoTrack = nil
+        audioTrack = nil
+        videoAudioTracks.removeAll()
+        assetTracks = (0 ..< Int(formatCtx.pointee.nb_streams)).compactMap { i in
+            if let coreStream = formatCtx.pointee.streams[i] {
+                coreStream.pointee.discard = AVDISCARD_ALL
+                if let assetTrack = FFmpegAssetTrack(stream: coreStream) {
+                    if assetTrack.mediaType == .subtitle {
+                        let subtitle = SyncPlayerItemTrack<SubtitleFrame>(mediaType: .subtitle, frameCapacity: 255, options: options)
+                        assetTrack.subtitle = subtitle
+                        allPlayerItemTracks.append(subtitle)
+                    }
+                    assetTrack.seekByBytes = seekByBytes
+                    return assetTrack
+                }
+            }
+            return nil
+        }
+        var videoIndex: Int32 = -1
+        if !options.videoDisable {
+            let videos = assetTracks.filter { $0.mediaType == .video }
+            let wantedStreamNb: Int32
+            if !videos.isEmpty, let index = options.wantedVideo(tracks: videos) {
+                wantedStreamNb = videos[index].trackID
+            } else {
+                wantedStreamNb = -1
+            }
+            videoIndex = av_find_best_stream(formatCtx, AVMEDIA_TYPE_VIDEO, wantedStreamNb, -1, nil, 0)
+            if let first = videos.first(where: { $0.trackID == videoIndex }) {
+                first.isEnabled = true
+                let rotation = first.rotation
+                if rotation > 0, options.autoRotate {
+                    options.hardwareDecode = false
+                    if abs(rotation - 90) <= 1 {
+                        options.videoFilters.append("transpose=clock")
+                    } else if abs(rotation - 180) <= 1 {
+                        options.videoFilters.append("hflip")
+                        options.videoFilters.append("vflip")
+                    } else if abs(rotation - 270) <= 1 {
+                        options.videoFilters.append("transpose=cclock")
+                    } else if abs(rotation) > 1 {
+                        options.videoFilters.append("rotate=\(rotation)*PI/180")
+                    }
+                }
+                naturalSize = abs(rotation - 90) <= 1 || abs(rotation - 270) <= 1 ? first.naturalSize.reverse : first.naturalSize
+                options.process(assetTrack: first)
+                let frameCapacity = options.videoFrameMaxCount(fps: first.nominalFrameRate, naturalSize: naturalSize, isLive: duration == 0)
+                let track = options.syncDecodeVideo ? SyncPlayerItemTrack<VideoVTBFrame>(mediaType: .video, frameCapacity: frameCapacity, options: options) : AsyncPlayerItemTrack<VideoVTBFrame>(mediaType: .video, frameCapacity: frameCapacity, options: options)
+                track.delegate = self
+                allPlayerItemTracks.append(track)
+                videoTrack = track
+                if first.codecpar.codec_id != AV_CODEC_ID_MJPEG {
+                    videoAudioTracks.append(track)
+                }
+                let bitRates = videos.map(\.bitRate).filter {
+                    $0 > 0
+                }
+                if bitRates.count > 1, options.videoAdaptable {
+                    let bitRateState = VideoAdaptationState.BitRateState(bitRate: first.bitRate, time: CACurrentMediaTime())
+                    videoAdaptation = VideoAdaptationState(bitRates: bitRates.sorted(by: <), duration: duration, fps: first.nominalFrameRate, bitRateStates: [bitRateState])
+                }
+            }
+        }
+
+        let audios = assetTracks.filter { $0.mediaType == .audio }
+        let wantedStreamNb: Int32
+        if !audios.isEmpty, let index = options.wantedAudio(tracks: audios) {
+            wantedStreamNb = audios[index].trackID
+        } else {
+            wantedStreamNb = -1
+        }
+        let index = av_find_best_stream(formatCtx, AVMEDIA_TYPE_AUDIO, wantedStreamNb, videoIndex, nil, 0)
+        if let first = audios.first(where: {
+            index > 0 ? $0.trackID == index : true
+        }), first.codecpar.codec_id != AV_CODEC_ID_NONE {
+            first.isEnabled = true
+            options.process(assetTrack: first)
+            // 音频要比较所有的音轨，因为truehd的fps是1200，跟其他的音轨差距太大了
+            let fps = audios.map(\.nominalFrameRate).max() ?? 44
+            let frameCapacity = options.audioFrameMaxCount(fps: fps, channelCount: Int(first.audioDescriptor?.audioFormat.channelCount ?? 2))
+            let track = options.syncDecodeAudio ? SyncPlayerItemTrack<AudioFrame>(mediaType: .audio, frameCapacity: frameCapacity, options: options) : AsyncPlayerItemTrack<AudioFrame>(mediaType: .audio, frameCapacity: frameCapacity, options: options)
+            track.delegate = self
+            allPlayerItemTracks.append(track)
+            audioTrack = track
+            videoAudioTracks.append(track)
+            isAudioStalled = false
+        }
+    }
+
+    private func read() {
+        readOperation = BlockOperation { [weak self] in
+            guard let self else { return }
+            Thread.current.name = (self.operationQueue.name ?? "") + "_read"
+            Thread.current.stackSize = KSOptions.stackSize
+            self.readThread()
+        }
+        readOperation?.queuePriority = .veryHigh
+        readOperation?.qualityOfService = .userInteractive
+        if let readOperation {
+            operationQueue.addOperation(readOperation)
+        }
+    }
+
+    private func readThread() {
+        if state == .opened {
+            if options.startPlayTime > 0 {
+                let timestamp = startTime + CMTime(seconds: options.startPlayTime)
+                let flags = seekByBytes ? AVSEEK_FLAG_BYTE : 0
+                let seekStartTime = CACurrentMediaTime()
+                let result = avformat_seek_file(formatCtx, -1, Int64.min, timestamp.value, Int64.max, flags)
+                audioClock.time = timestamp
+                videoClock.time = timestamp
+                KSLog("start PlayTime: \(timestamp.seconds) spend Time: \(CACurrentMediaTime() - seekStartTime)")
+            }
+            state = .reading
+        }
+        allPlayerItemTracks.forEach { $0.decode() }
+        while [MESourceState.paused, .seeking, .reading].contains(state) {
+            if state == .paused {
+                condition.wait()
+            }
+            if state == .seeking {
+                let seekToTime = seekTime
+                let time = mainClock().time
+                var increase = Int64(seekTime + startTime.seconds - time.seconds)
+                var seekFlags = options.seekFlags
+                let timeStamp: Int64
+                if seekByBytes {
+                    seekFlags |= AVSEEK_FLAG_BYTE
+                    if let bitRate = formatCtx?.pointee.bit_rate {
+                        increase = increase * bitRate / 8
+                    } else {
+                        increase *= 180_000
+                    }
+                    var position = Int64(-1)
+                    if position < 0 {
+                        position = videoClock.position
+                    }
+                    if position < 0 {
+                        position = audioClock.position
+                    }
+                    if position < 0 {
+                        position = avio_tell(formatCtx?.pointee.pb)
+                    }
+                    timeStamp = position + increase
+                } else {
+                    increase *= Int64(AV_TIME_BASE)
+                    timeStamp = Int64(time.seconds) * Int64(AV_TIME_BASE) + increase
+                }
+                let seekMin = increase > 0 ? timeStamp - increase + 2 : Int64.min
+                let seekMax = increase < 0 ? timeStamp - increase - 2 : Int64.max
+                // can not seek to key frame
+                let seekStartTime = CACurrentMediaTime()
+                var result = avformat_seek_file(formatCtx, -1, seekMin, timeStamp, seekMax, seekFlags)
+//                var result = av_seek_frame(formatCtx, -1, timeStamp, seekFlags)
+                // When seeking before the beginning of the file, and seeking fails,
+                // try again without the backwards flag to make it seek to the
+                // beginning.
+                if result < 0, seekFlags & AVSEEK_FLAG_BACKWARD == AVSEEK_FLAG_BACKWARD {
+                    KSLog("seek to \(seekToTime) failed. seekFlags remove BACKWARD")
+                    options.seekFlags &= ~AVSEEK_FLAG_BACKWARD
+                    seekFlags &= ~AVSEEK_FLAG_BACKWARD
+                    result = avformat_seek_file(formatCtx, -1, seekMin, timeStamp, seekMax, seekFlags)
+                }
+                KSLog("seek to \(seekToTime) spend Time: \(CACurrentMediaTime() - seekStartTime)")
+                if state == .closed {
+                    break
+                }
+                if seekToTime != seekTime {
+                    continue
+                }
+                isSeek = true
+                allPlayerItemTracks.forEach { $0.seek(time: seekToTime) }
+                DispatchQueue.main.async { [weak self] in
+                    guard let self else { return }
+                    self.seekingCompletionHandler?(result >= 0)
+                    self.seekingCompletionHandler = nil
+                }
+                audioClock.time = CMTime(seconds: seekToTime, preferredTimescale: time.timescale) + startTime
+                videoClock.time = CMTime(seconds: seekToTime, preferredTimescale: time.timescale) + startTime
+                state = .reading
+            } else if state == .reading {
+                autoreleasepool {
+                    _ = reading()
+                }
+            }
+        }
+    }
+
+    private func reading() -> Int32 {
+        let packet = Packet()
+        guard let corePacket = packet.corePacket else {
+            return 0
+        }
+        let readResult = av_read_frame(formatCtx, corePacket)
+        if state == .closed {
+            return 0
+        }
+        if readResult == 0 {
+            if let outputFormatCtx, let formatCtx {
+                let index = Int(corePacket.pointee.stream_index)
+                if let outputIndex = streamMapping[index],
+                   let inputTb = formatCtx.pointee.streams[index]?.pointee.time_base,
+                   let outputTb = outputFormatCtx.pointee.streams[outputIndex]?.pointee.time_base,
+                   let outputPacket
+                {
+                    av_packet_ref(outputPacket, corePacket)
+                    outputPacket.pointee.stream_index = Int32(outputIndex)
+                    av_packet_rescale_ts(outputPacket, inputTb, outputTb)
+                    outputPacket.pointee.pos = -1
+                    let ret = av_interleaved_write_frame(outputFormatCtx, outputPacket)
+                    if ret < 0 {
+                        KSLog("can not av_interleaved_write_frame")
+                    }
+                }
+            }
+            if corePacket.pointee.size <= 0 {
+                return 0
+            }
+            let first = assetTracks.first { $0.trackID == corePacket.pointee.stream_index }
+            if let first, first.isEnabled {
+                packet.assetTrack = first
+                if first.mediaType == .video {
+                    if options.readVideoTime == 0 {
+                        options.readVideoTime = CACurrentMediaTime()
+                    }
+                    videoTrack?.putPacket(packet: packet)
+                } else if first.mediaType == .audio {
+                    if options.readAudioTime == 0 {
+                        options.readAudioTime = CACurrentMediaTime()
+                    }
+                    audioTrack?.putPacket(packet: packet)
+                } else {
+                    first.subtitle?.putPacket(packet: packet)
+                }
+            }
+        } else {
+            if readResult == AVError.eof.code || avio_feof(formatCtx?.pointee.pb) > 0 {
+                if options.isLoopPlay, allPlayerItemTracks.allSatisfy({ !$0.isLoopModel }) {
+                    allPlayerItemTracks.forEach { $0.isLoopModel = true }
+                    _ = av_seek_frame(formatCtx, -1, startTime.value, AVSEEK_FLAG_BACKWARD)
+                } else {
+                    allPlayerItemTracks.forEach { $0.isEndOfFile = true }
+                    state = .finished
+                }
+            } else {
+                //                        if IS_AVERROR_INVALIDDATA(readResult)
+                error = .init(errorCode: .readFrame, avErrorCode: readResult)
+            }
+        }
+        return readResult
+    }
+
+    private func pause() {
+        if state == .reading {
+            state = .paused
+        }
+    }
+
+    private func resume() {
+        if state == .paused {
+            state = .reading
+            condition.signal()
+        }
+    }
+}
+
+// MARK: MediaPlayback
+
+extension MEPlayerItem: MediaPlayback {
+    var seekable: Bool {
+        guard let formatCtx else {
+            return false
+        }
+        var seekable = true
+        if let ioContext = formatCtx.pointee.pb {
+            seekable = ioContext.pointee.seekable > 0
+        }
+        return seekable
+    }
+
+    public func prepareToPlay() {
+        state = .opening
+        openOperation = BlockOperation { [weak self] in
+            guard let self else { return }
+            Thread.current.name = (self.operationQueue.name ?? "") + "_open"
+            Thread.current.stackSize = KSOptions.stackSize
+            self.openThread()
+        }
+        openOperation?.queuePriority = .veryHigh
+        openOperation?.qualityOfService = .userInteractive
+        if let openOperation {
+            operationQueue.addOperation(openOperation)
+        }
+    }
+
+    public func shutdown() {
+        guard state != .closed else { return }
+        state = .closed
+        av_packet_free(&outputPacket)
+        stopRecord()
+        // 故意循环引用。等结束了。才释放
+        let closeOperation = BlockOperation {
+            Thread.current.name = (self.operationQueue.name ?? "") + "_close"
+            self.allPlayerItemTracks.forEach { $0.shutdown() }
+            KSLog("清空formatCtx")
+            // 自定义的协议才会av_class为空
+            if let formatCtx = self.formatCtx, (formatCtx.pointee.flags & AVFMT_FLAG_CUSTOM_IO) != 0, let opaque = formatCtx.pointee.pb.pointee.opaque {
+                let value = Unmanaged<AbstractAVIOContext>.fromOpaque(opaque).takeRetainedValue()
+                value.close()
+            }
+            // 不要自己来释放pb。不然第二次播放同一个url会出问题
+//            self.formatCtx?.pointee.pb = nil
+            self.formatCtx?.pointee.interrupt_callback.opaque = nil
+            self.formatCtx?.pointee.interrupt_callback.callback = nil
+            avformat_close_input(&self.formatCtx)
+            avformat_close_input(&self.outputFormatCtx)
+            self.duration = 0
+            self.closeOperation = nil
+            self.operationQueue.cancelAllOperations()
+        }
+        closeOperation.queuePriority = .veryHigh
+        closeOperation.qualityOfService = .userInteractive
+        if let readOperation {
+            readOperation.cancel()
+            closeOperation.addDependency(readOperation)
+        } else if let openOperation {
+            openOperation.cancel()
+            closeOperation.addDependency(openOperation)
+        }
+        operationQueue.addOperation(closeOperation)
+        condition.signal()
+        if options.syncDecodeVideo || options.syncDecodeAudio {
+            DispatchQueue.global().async { [weak self] in
+                self?.allPlayerItemTracks.forEach { $0.shutdown() }
+            }
+        }
+        self.closeOperation = closeOperation
+    }
+
+    func stopRecord() {
+        if let outputFormatCtx {
+            av_write_trailer(outputFormatCtx)
+        }
+    }
+
+    public func seek(time: TimeInterval, completion: @escaping ((Bool) -> Void)) {
+        if state == .reading || state == .paused {
+            seekTime = time
+            state = .seeking
+            seekingCompletionHandler = completion
+            condition.broadcast()
+            allPlayerItemTracks.forEach { $0.seek(time: time) }
+        } else if state == .finished {
+            seekTime = time
+            state = .seeking
+            seekingCompletionHandler = completion
+            read()
+        } else if state == .seeking {
+            seekTime = time
+            seekingCompletionHandler = completion
+        }
+        isAudioStalled = audioTrack == nil
+    }
+}
+
+extension MEPlayerItem: CodecCapacityDelegate {
+    func codecDidChangeCapacity() {
+        let loadingState = options.playable(capacitys: videoAudioTracks, isFirst: isFirst, isSeek: isSeek)
+        delegate?.sourceDidChange(loadingState: loadingState)
+        if loadingState.isPlayable {
+            isFirst = false
+            isSeek = false
+            if loadingState.loadedTime > options.maxBufferDuration {
+                adaptableVideo(loadingState: loadingState)
+                pause()
+            } else if loadingState.loadedTime < options.maxBufferDuration / 2 {
+                resume()
+            }
+        } else {
+            resume()
+            adaptableVideo(loadingState: loadingState)
+        }
+    }
+
+    func codecDidFinished(track: some CapacityProtocol) {
+        if track.mediaType == .audio {
+            isAudioStalled = true
+        }
+        let allSatisfy = videoAudioTracks.allSatisfy { $0.isEndOfFile && $0.frameCount == 0 && $0.packetCount == 0 }
+        if allSatisfy {
+            delegate?.sourceDidFinished()
+            timer.fireDate = Date.distantFuture
+            if options.isLoopPlay {
+                isAudioStalled = audioTrack == nil
+                audioTrack?.isLoopModel = false
+                videoTrack?.isLoopModel = false
+                if state == .finished {
+                    seek(time: 0) { _ in }
+                }
+            }
+        }
+    }
+
+    private func adaptableVideo(loadingState: LoadingState) {
+        if options.videoDisable || videoAdaptation == nil || loadingState.isEndOfFile || loadingState.isSeek || state == .seeking {
+            return
+        }
+        guard let track = videoTrack else {
+            return
+        }
+        videoAdaptation?.loadedCount = track.packetCount + track.frameCount
+        videoAdaptation?.currentPlaybackTime = currentPlaybackTime
+        videoAdaptation?.isPlayable = loadingState.isPlayable
+        guard let (oldBitRate, newBitrate) = options.adaptable(state: videoAdaptation), oldBitRate != newBitrate,
+              let newFFmpegAssetTrack = assetTracks.first(where: { $0.mediaType == .video && $0.bitRate == newBitrate })
+        else {
+            return
+        }
+        assetTracks.first { $0.mediaType == .video && $0.bitRate == oldBitRate }?.isEnabled = false
+        newFFmpegAssetTrack.isEnabled = true
+        findBestAudio(videoTrack: newFFmpegAssetTrack)
+        let bitRateState = VideoAdaptationState.BitRateState(bitRate: newBitrate, time: CACurrentMediaTime())
+        videoAdaptation?.bitRateStates.append(bitRateState)
+        delegate?.sourceDidChange(oldBitRate: oldBitRate, newBitrate: newBitrate)
+    }
+
+    private func findBestAudio(videoTrack: FFmpegAssetTrack) {
+        guard videoAdaptation != nil, let first = assetTracks.first(where: { $0.mediaType == .audio && $0.isEnabled }) else {
+            return
+        }
+        let index = av_find_best_stream(formatCtx, AVMEDIA_TYPE_AUDIO, -1, videoTrack.trackID, nil, 0)
+        if index != first.trackID {
+            first.isEnabled = false
+            assetTracks.first { $0.mediaType == .audio && $0.trackID == index }?.isEnabled = true
+        }
+    }
+}
+
+extension MEPlayerItem: OutputRenderSourceDelegate {
+    func mainClock() -> KSClock {
+        isAudioStalled ? videoClock : audioClock
+    }
+
+    public func setVideo(time: CMTime, position: Int64) {
+//        print("[video] video interval \(CACurrentMediaTime() - videoClock.lastMediaTime) video diff \(time.seconds - videoClock.time.seconds)")
+        videoClock.time = time
+        videoClock.position = position
+        videoDisplayCount += 1
+        let diff = videoClock.lastMediaTime - lastVideoDisplayTime
+        if diff > 1 {
+            dynamicInfo.displayFPS = Double(videoDisplayCount) / diff
+            videoDisplayCount = 0
+            lastVideoDisplayTime = videoClock.lastMediaTime
+        }
+    }
+
+    public func setAudio(time: CMTime, position: Int64) {
+//        print("[audio] setAudio: \(time.seconds)")
+        // 切换到主线程的话，那播放起来会更顺滑
+        runOnMainThread {
+            self.audioClock.time = time
+            self.audioClock.position = position
+        }
+    }
+
+    public func getVideoOutputRender(force: Bool) -> VideoVTBFrame? {
+        guard let videoTrack else {
+            return nil
+        }
+        var type: ClockProcessType = force ? .next : .remain
+        let predicate: ((VideoVTBFrame, Int) -> Bool)? = force ? nil : { [weak self] frame, count -> Bool in
+            guard let self else { return true }
+            (self.dynamicInfo.audioVideoSyncDiff, type) = self.options.videoClockSync(main: self.mainClock(), nextVideoTime: frame.seconds, fps: Double(frame.fps), frameCount: count)
+            return type != .remain
+        }
+        let frame = videoTrack.getOutputRender(where: predicate)
+        switch type {
+        case .remain:
+            break
+        case .next:
+            break
+        case .dropNextFrame:
+            if videoTrack.getOutputRender(where: nil) != nil {
+                dynamicInfo.droppedVideoFrameCount += 1
+            }
+        case .flush:
+            let count = videoTrack.outputRenderQueue.count
+            videoTrack.outputRenderQueue.flush()
+            dynamicInfo.droppedVideoFrameCount += UInt32(count)
+        case .seek:
+            videoTrack.outputRenderQueue.flush()
+            videoTrack.seekTime = mainClock().time.seconds
+        case .dropNextPacket:
+            if let videoTrack = videoTrack as? AsyncPlayerItemTrack {
+                let packet = videoTrack.packetQueue.pop { item, _ -> Bool in
+                    !item.isKeyFrame
+                }
+                if packet != nil {
+                    dynamicInfo.droppedVideoPacketCount += 1
+                }
+            }
+        case .dropGOPPacket:
+            if let videoTrack = videoTrack as? AsyncPlayerItemTrack {
+                var packet: Packet? = nil
+                repeat {
+                    packet = videoTrack.packetQueue.pop { item, _ -> Bool in
+                        !item.isKeyFrame
+                    }
+                    if packet != nil {
+                        dynamicInfo.droppedVideoPacketCount += 1
+                    }
+                } while packet != nil
+            }
+        }
+        return frame
+    }
+
+    public func getAudioOutputRender() -> AudioFrame? {
+        if let frame = audioTrack?.getOutputRender(where: nil) {
+            SubtitleModel.audioRecognizes.first {
+                $0.isEnabled
+            }?.append(frame: frame)
+            return frame
+        } else {
+            return nil
+        }
+    }
+}
+
+extension AbstractAVIOContext {
+    func getContext() -> UnsafeMutablePointer<AVIOContext> {
+        // 需要持有ioContext，不然会被释放掉,等到shutdown在清空
+        avio_alloc_context(av_malloc(Int(bufferSize)), bufferSize, writable ? 1 : 0, Unmanaged.passRetained(self).toOpaque()) { opaque, buffer, size -> Int32 in
+            let value = Unmanaged<AbstractAVIOContext>.fromOpaque(opaque!).takeUnretainedValue()
+            let ret = value.read(buffer: buffer, size: size)
+            return Int32(ret)
+        } _: { opaque, buffer, size -> Int32 in
+            let value = Unmanaged<AbstractAVIOContext>.fromOpaque(opaque!).takeUnretainedValue()
+            let ret = value.write(buffer: buffer, size: size)
+            return Int32(ret)
+        } _: { opaque, offset, whence -> Int64 in
+            let value = Unmanaged<AbstractAVIOContext>.fromOpaque(opaque!).takeUnretainedValue()
+            if whence == AVSEEK_SIZE {
+                return value.fileSize()
+            }
+            return value.seek(offset: offset, whence: whence)
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/MEPlayerItemTrack.swift

@@ -0,0 +1,316 @@
+//
+//  Decoder.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+import AVFoundation
+import CoreMedia
+import Libavformat
+
+protocol PlayerItemTrackProtocol: CapacityProtocol, AnyObject {
+    init(mediaType: AVFoundation.AVMediaType, frameCapacity: UInt8, options: KSOptions)
+    // 是否无缝循环
+    var isLoopModel: Bool { get set }
+    var isEndOfFile: Bool { get set }
+    var delegate: CodecCapacityDelegate? { get set }
+    func decode()
+    func seek(time: TimeInterval)
+    func putPacket(packet: Packet)
+//    func getOutputRender<Frame: ObjectQueueItem>(where predicate: ((Frame) -> Bool)?) -> Frame?
+    func shutdown()
+}
+
+class SyncPlayerItemTrack<Frame: MEFrame>: PlayerItemTrackProtocol, CustomStringConvertible {
+    var seekTime = 0.0
+    fileprivate let options: KSOptions
+    fileprivate var decoderMap = [Int32: DecodeProtocol]()
+    fileprivate var state = MECodecState.idle {
+        didSet {
+            if state == .finished {
+                seekTime = 0
+            }
+        }
+    }
+
+    var isEndOfFile: Bool = false
+    var packetCount: Int { 0 }
+    let description: String
+    weak var delegate: CodecCapacityDelegate?
+    let mediaType: AVFoundation.AVMediaType
+    let outputRenderQueue: CircularBuffer<Frame>
+    var isLoopModel = false
+    var frameCount: Int { outputRenderQueue.count }
+    var frameMaxCount: Int {
+        outputRenderQueue.maxCount
+    }
+
+    var fps: Float {
+        outputRenderQueue.fps
+    }
+
+    required init(mediaType: AVFoundation.AVMediaType, frameCapacity: UInt8, options: KSOptions) {
+        self.options = options
+        self.mediaType = mediaType
+        description = mediaType.rawValue
+        // 默认缓存队列大小跟帧率挂钩,经测试除以4，最优
+        if mediaType == .audio {
+            outputRenderQueue = CircularBuffer(initialCapacity: Int(frameCapacity), expanding: false)
+        } else if mediaType == .video {
+            outputRenderQueue = CircularBuffer(initialCapacity: Int(frameCapacity), sorted: true, expanding: false)
+        } else {
+            // 有的图片字幕不按顺序来输出，所以要排序下。
+            outputRenderQueue = CircularBuffer(initialCapacity: Int(frameCapacity), sorted: true)
+        }
+    }
+
+    func decode() {
+        isEndOfFile = false
+        state = .decoding
+    }
+
+    func seek(time: TimeInterval) {
+        if options.isAccurateSeek {
+            seekTime = time
+        } else {
+            seekTime = 0
+        }
+        isEndOfFile = false
+        state = .flush
+        outputRenderQueue.flush()
+        isLoopModel = false
+    }
+
+    func putPacket(packet: Packet) {
+        if state == .flush {
+            decoderMap.values.forEach { $0.doFlushCodec() }
+            state = .decoding
+        }
+        if state == .decoding {
+            doDecode(packet: packet)
+        }
+    }
+
+    func getOutputRender(where predicate: ((Frame, Int) -> Bool)?) -> Frame? {
+        let outputFecthRender = outputRenderQueue.pop(where: predicate)
+        if outputFecthRender == nil {
+            if state == .finished, frameCount == 0 {
+                delegate?.codecDidFinished(track: self)
+            }
+        }
+        return outputFecthRender
+    }
+
+    func shutdown() {
+        if state == .idle {
+            return
+        }
+        state = .closed
+        outputRenderQueue.shutdown()
+    }
+
+    private var lastPacketBytes = Int32(0)
+    private var lastPacketSeconds = Double(-1)
+    var bitrate = Double(0)
+    fileprivate func doDecode(packet: Packet) {
+        if packet.isKeyFrame, packet.assetTrack.mediaType != .subtitle {
+            let seconds = packet.seconds
+            let diff = seconds - lastPacketSeconds
+            if lastPacketSeconds < 0 || diff < 0 {
+                bitrate = 0
+                lastPacketBytes = 0
+                lastPacketSeconds = seconds
+            } else if diff > 1 {
+                bitrate = Double(lastPacketBytes) / diff
+                lastPacketBytes = 0
+                lastPacketSeconds = seconds
+            }
+        }
+        lastPacketBytes += packet.size
+        let decoder = decoderMap.value(for: packet.assetTrack.trackID, default: makeDecode(assetTrack: packet.assetTrack))
+//        var startTime = CACurrentMediaTime()
+        decoder.decodeFrame(from: packet) { [weak self] result in
+            guard let self else {
+                return
+            }
+            do {
+//                if packet.assetTrack.mediaType == .video {
+//                    print("[video] decode time: \(CACurrentMediaTime()-startTime)")
+//                    startTime = CACurrentMediaTime()
+//                }
+                let frame = try result.get()
+                if self.state == .flush || self.state == .closed {
+                    return
+                }
+                if self.seekTime > 0 {
+                    let timestamp = frame.timestamp + frame.duration
+//                    KSLog("seektime \(self.seekTime), frame \(frame.seconds), mediaType \(packet.assetTrack.mediaType)")
+                    if timestamp <= 0 || frame.timebase.cmtime(for: timestamp).seconds < self.seekTime {
+                        return
+                    } else {
+                        self.seekTime = 0.0
+                    }
+                }
+                if let frame = frame as? Frame {
+                    self.outputRenderQueue.push(frame)
+                    self.outputRenderQueue.fps = packet.assetTrack.nominalFrameRate
+                }
+            } catch {
+                KSLog("Decoder did Failed : \(error)")
+                if decoder is VideoToolboxDecode {
+                    decoder.shutdown()
+                    self.decoderMap[packet.assetTrack.trackID] = FFmpegDecode(assetTrack: packet.assetTrack, options: self.options)
+                    KSLog("VideoCodec switch to software decompression")
+                    self.doDecode(packet: packet)
+                } else {
+                    self.state = .failed
+                }
+            }
+        }
+        if options.decodeAudioTime == 0, mediaType == .audio {
+            options.decodeAudioTime = CACurrentMediaTime()
+        }
+        if options.decodeVideoTime == 0, mediaType == .video {
+            options.decodeVideoTime = CACurrentMediaTime()
+        }
+    }
+}
+
+final class AsyncPlayerItemTrack<Frame: MEFrame>: SyncPlayerItemTrack<Frame> {
+    private let operationQueue = OperationQueue()
+    private var decodeOperation: BlockOperation!
+    // 无缝播放使用的PacketQueue
+    private var loopPacketQueue: CircularBuffer<Packet>?
+    var packetQueue = CircularBuffer<Packet>()
+    override var packetCount: Int { packetQueue.count }
+    override var isLoopModel: Bool {
+        didSet {
+            if isLoopModel {
+                loopPacketQueue = CircularBuffer<Packet>()
+                isEndOfFile = true
+            } else {
+                if let loopPacketQueue {
+                    packetQueue.shutdown()
+                    packetQueue = loopPacketQueue
+                    self.loopPacketQueue = nil
+                    if decodeOperation.isFinished {
+                        decode()
+                    }
+                }
+            }
+        }
+    }
+
+    required init(mediaType: AVFoundation.AVMediaType, frameCapacity: UInt8, options: KSOptions) {
+        super.init(mediaType: mediaType, frameCapacity: frameCapacity, options: options)
+        operationQueue.name = "KSPlayer_" + mediaType.rawValue
+        operationQueue.maxConcurrentOperationCount = 1
+        operationQueue.qualityOfService = .userInteractive
+    }
+
+    override func putPacket(packet: Packet) {
+        if isLoopModel {
+            loopPacketQueue?.push(packet)
+        } else {
+            packetQueue.push(packet)
+        }
+    }
+
+    override func decode() {
+        isEndOfFile = false
+        guard operationQueue.operationCount == 0 else { return }
+        decodeOperation = BlockOperation { [weak self] in
+            guard let self else { return }
+            Thread.current.name = self.operationQueue.name
+            Thread.current.stackSize = KSOptions.stackSize
+            self.decodeThread()
+        }
+        decodeOperation.queuePriority = .veryHigh
+        decodeOperation.qualityOfService = .userInteractive
+        operationQueue.addOperation(decodeOperation)
+    }
+
+    private func decodeThread() {
+        state = .decoding
+        isEndOfFile = false
+        decoderMap.values.forEach { $0.decode() }
+        outerLoop: while !decodeOperation.isCancelled {
+            switch state {
+            case .idle:
+                break outerLoop
+            case .finished, .closed, .failed:
+                decoderMap.values.forEach { $0.shutdown() }
+                decoderMap.removeAll()
+                break outerLoop
+            case .flush:
+                decoderMap.values.forEach { $0.doFlushCodec() }
+                state = .decoding
+            case .decoding:
+                if isEndOfFile, packetQueue.count == 0 {
+                    state = .finished
+                } else {
+                    guard let packet = packetQueue.pop(wait: true), state != .flush, state != .closed else {
+                        continue
+                    }
+                    autoreleasepool {
+                        doDecode(packet: packet)
+                    }
+                }
+            }
+        }
+    }
+
+    override func seek(time: TimeInterval) {
+        if decodeOperation.isFinished {
+            decode()
+        }
+        packetQueue.flush()
+        super.seek(time: time)
+        loopPacketQueue = nil
+    }
+
+    override func shutdown() {
+        if state == .idle {
+            return
+        }
+        super.shutdown()
+        packetQueue.shutdown()
+    }
+}
+
+public extension Dictionary {
+    mutating func value(for key: Key, default defaultValue: @autoclosure () -> Value) -> Value {
+        if let value = self[key] {
+            return value
+        } else {
+            let value = defaultValue()
+            self[key] = value
+            return value
+        }
+    }
+}
+
+protocol DecodeProtocol {
+    func decode()
+    func decodeFrame(from packet: Packet, completionHandler: @escaping (Result<MEFrame, Error>) -> Void)
+    func doFlushCodec()
+    func shutdown()
+}
+
+extension SyncPlayerItemTrack {
+    func makeDecode(assetTrack: FFmpegAssetTrack) -> DecodeProtocol {
+        autoreleasepool {
+            if mediaType == .subtitle {
+                return SubtitleDecode(assetTrack: assetTrack, options: options)
+            } else {
+                if mediaType == .video, options.asynchronousDecompression, options.hardwareDecode,
+                   let session = DecompressionSession(assetTrack: assetTrack, options: options)
+                {
+                    return VideoToolboxDecode(options: options, session: session)
+                } else {
+                    return FFmpegDecode(assetTrack: assetTrack, options: options)
+                }
+            }
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/MetalPlayView.swift

@@ -0,0 +1,446 @@
+//
+//  MetalPlayView.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/11.
+//
+
+import AVFoundation
+import Combine
+import CoreMedia
+#if canImport(MetalKit)
+import MetalKit
+#endif
+public protocol DisplayLayerDelegate: NSObjectProtocol {
+    func change(displayLayer: AVSampleBufferDisplayLayer)
+}
+
+public protocol VideoOutput: FrameOutput {
+    var displayLayerDelegate: DisplayLayerDelegate? { get set }
+    var options: KSOptions { get set }
+    var displayLayer: AVSampleBufferDisplayLayer { get }
+    var pixelBuffer: PixelBufferProtocol? { get }
+    init(options: KSOptions)
+    func invalidate()
+    func readNextFrame()
+}
+
+public final class MetalPlayView: UIView, VideoOutput {
+    public var displayLayer: AVSampleBufferDisplayLayer {
+        displayView.displayLayer
+    }
+
+    private var isDovi: Bool = false
+    private var formatDescription: CMFormatDescription? {
+        didSet {
+            options.updateVideo(refreshRate: fps, isDovi: isDovi, formatDescription: formatDescription)
+        }
+    }
+
+    private var fps = Float(60) {
+        didSet {
+            if fps != oldValue {
+                if KSOptions.preferredFrame {
+                    let preferredFramesPerSecond = ceil(fps)
+                    if #available(iOS 15.0, tvOS 15.0, macOS 14.0, *) {
+                        displayLink.preferredFrameRateRange = CAFrameRateRange(minimum: preferredFramesPerSecond, maximum: 2 * preferredFramesPerSecond, __preferred: preferredFramesPerSecond)
+                    } else {
+                        displayLink.preferredFramesPerSecond = Int(preferredFramesPerSecond) << 1
+                    }
+                }
+                options.updateVideo(refreshRate: fps, isDovi: isDovi, formatDescription: formatDescription)
+            }
+        }
+    }
+
+    public private(set) var pixelBuffer: PixelBufferProtocol?
+    /// 用displayLink会导致锁屏无法draw，
+    /// 用DispatchSourceTimer的话，在播放4k视频的时候repeat的时间会变长,
+    /// 用MTKView的draw(in:)也是不行，会卡顿
+    private var displayLink: CADisplayLink!
+//    private let timer = DispatchSource.makeTimerSource(queue: DispatchQueue.main)
+    public var options: KSOptions
+    public weak var renderSource: OutputRenderSourceDelegate?
+    // AVSampleBufferAudioRenderer AVSampleBufferRenderSynchronizer AVSampleBufferDisplayLayer
+    var displayView = AVSampleBufferDisplayView() {
+        didSet {
+            displayLayerDelegate?.change(displayLayer: displayView.displayLayer)
+        }
+    }
+
+    private let metalView = MetalView()
+    public weak var displayLayerDelegate: DisplayLayerDelegate?
+    public init(options: KSOptions) {
+        self.options = options
+        super.init(frame: .zero)
+        addSubview(displayView)
+        addSubview(metalView)
+        metalView.isHidden = true
+        //        displayLink = CADisplayLink(block: renderFrame)
+        displayLink = CADisplayLink(target: self, selector: #selector(renderFrame))
+        // 一定要用common。不然在视频上面操作view的话，那就会卡顿了。
+        displayLink.add(to: .main, forMode: .common)
+        pause()
+    }
+
+    public func play() {
+        displayLink.isPaused = false
+    }
+
+    public func pause() {
+        displayLink.isPaused = true
+    }
+
+    @available(*, unavailable)
+    required init(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override public func didAddSubview(_ subview: UIView) {
+        super.didAddSubview(subview)
+        subview.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            subview.leftAnchor.constraint(equalTo: leftAnchor),
+            subview.topAnchor.constraint(equalTo: topAnchor),
+            subview.bottomAnchor.constraint(equalTo: bottomAnchor),
+            subview.rightAnchor.constraint(equalTo: rightAnchor),
+        ])
+    }
+
+    override public var contentMode: UIViewContentMode {
+        didSet {
+            metalView.contentMode = contentMode
+            switch contentMode {
+            case .scaleToFill:
+                displayView.displayLayer.videoGravity = .resize
+            case .scaleAspectFit, .center:
+                displayView.displayLayer.videoGravity = .resizeAspect
+            case .scaleAspectFill:
+                displayView.displayLayer.videoGravity = .resizeAspectFill
+            default:
+                break
+            }
+        }
+    }
+
+    #if canImport(UIKit)
+    override public func touchesMoved(_ touches: Set<UITouch>, with: UIEvent?) {
+        if options.display == .plane {
+            super.touchesMoved(touches, with: with)
+        } else {
+            options.display.touchesMoved(touch: touches.first!)
+        }
+    }
+    #else
+    override public func touchesMoved(with event: NSEvent) {
+        if options.display == .plane {
+            super.touchesMoved(with: event)
+        } else {
+            options.display.touchesMoved(touch: event.allTouches().first!)
+        }
+    }
+    #endif
+
+    public func flush() {
+        pixelBuffer = nil
+        if displayView.isHidden {
+            metalView.clear()
+        } else {
+            displayView.displayLayer.flushAndRemoveImage()
+        }
+    }
+
+    public func invalidate() {
+        displayLink.invalidate()
+    }
+
+    public func readNextFrame() {
+        draw(force: true)
+    }
+
+//    deinit {
+//        print()
+//    }
+}
+
+extension MetalPlayView {
+    @objc private func renderFrame() {
+        draw(force: false)
+    }
+
+    private func draw(force: Bool) {
+        autoreleasepool {
+            guard let frame = renderSource?.getVideoOutputRender(force: force) else {
+                return
+            }
+            pixelBuffer = frame.corePixelBuffer
+            guard let pixelBuffer else {
+                return
+            }
+            isDovi = frame.isDovi
+            fps = frame.fps
+            let cmtime = frame.cmtime
+            let par = pixelBuffer.size
+            let sar = pixelBuffer.aspectRatio
+            if let pixelBuffer = pixelBuffer.cvPixelBuffer, options.isUseDisplayLayer() {
+                if displayView.isHidden {
+                    displayView.isHidden = false
+                    metalView.isHidden = true
+                    metalView.clear()
+                }
+                if let dar = options.customizeDar(sar: sar, par: par) {
+                    pixelBuffer.aspectRatio = CGSize(width: dar.width, height: dar.height * par.width / par.height)
+                }
+                checkFormatDescription(pixelBuffer: pixelBuffer)
+                set(pixelBuffer: pixelBuffer, time: cmtime)
+            } else {
+                if !displayView.isHidden {
+                    displayView.isHidden = true
+                    metalView.isHidden = false
+                    displayView.displayLayer.flushAndRemoveImage()
+                }
+                let size: CGSize
+                if options.display == .plane {
+                    if let dar = options.customizeDar(sar: sar, par: par) {
+                        size = CGSize(width: par.width, height: par.width * dar.height / dar.width)
+                    } else {
+                        size = CGSize(width: par.width, height: par.height * sar.height / sar.width)
+                    }
+                } else {
+                    size = KSOptions.sceneSize
+                }
+                checkFormatDescription(pixelBuffer: pixelBuffer)
+                #if !os(tvOS)
+                if #available(iOS 16, *) {
+                    metalView.metalLayer.edrMetadata = frame.edrMetadata
+                }
+                #endif
+                metalView.draw(pixelBuffer: pixelBuffer, display: options.display, size: size)
+            }
+            renderSource?.setVideo(time: cmtime, position: frame.position)
+        }
+    }
+
+    private func checkFormatDescription(pixelBuffer: PixelBufferProtocol) {
+        if formatDescription == nil || !pixelBuffer.matche(formatDescription: formatDescription!) {
+            if formatDescription != nil {
+                displayView.removeFromSuperview()
+                displayView = AVSampleBufferDisplayView()
+                displayView.frame = frame
+                addSubview(displayView)
+            }
+            formatDescription = pixelBuffer.formatDescription
+        }
+    }
+
+    private func set(pixelBuffer: CVPixelBuffer, time: CMTime) {
+        guard let formatDescription else { return }
+        displayView.enqueue(imageBuffer: pixelBuffer, formatDescription: formatDescription, time: time)
+    }
+}
+
+class MetalView: UIView {
+    private let render = MetalRender()
+    #if canImport(UIKit)
+    override public class var layerClass: AnyClass { CAMetalLayer.self }
+    #endif
+    var metalLayer: CAMetalLayer {
+        // swiftlint:disable force_cast
+        layer as! CAMetalLayer
+        // swiftlint:enable force_cast
+    }
+
+    init() {
+        super.init(frame: .zero)
+        #if !canImport(UIKit)
+        layer = CAMetalLayer()
+        #endif
+        metalLayer.device = MetalRender.device
+        metalLayer.framebufferOnly = true
+//        metalLayer.displaySyncEnabled = false
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    func clear() {
+        if let drawable = metalLayer.nextDrawable() {
+            render.clear(drawable: drawable)
+        }
+    }
+
+    func draw(pixelBuffer: PixelBufferProtocol, display: DisplayEnum, size: CGSize) {
+        metalLayer.drawableSize = size
+        metalLayer.pixelFormat = KSOptions.colorPixelFormat(bitDepth: pixelBuffer.bitDepth)
+        let colorspace = pixelBuffer.colorspace
+        if colorspace != nil, metalLayer.colorspace != colorspace {
+            metalLayer.colorspace = colorspace
+            KSLog("[video] CAMetalLayer colorspace \(String(describing: colorspace))")
+            #if !os(tvOS)
+            if #available(iOS 16.0, *) {
+                if let name = colorspace?.name, name != CGColorSpace.sRGB {
+                    #if os(macOS)
+                    metalLayer.wantsExtendedDynamicRangeContent = window?.screen?.maximumPotentialExtendedDynamicRangeColorComponentValue ?? 1.0 > 1.0
+                    #else
+                    metalLayer.wantsExtendedDynamicRangeContent = true
+                    #endif
+                } else {
+                    metalLayer.wantsExtendedDynamicRangeContent = false
+                }
+                KSLog("[video] CAMetalLayer wantsExtendedDynamicRangeContent \(metalLayer.wantsExtendedDynamicRangeContent)")
+            }
+            #endif
+        }
+        guard let drawable = metalLayer.nextDrawable() else {
+            KSLog("[video] CAMetalLayer not readyForMoreMediaData")
+            return
+        }
+        render.draw(pixelBuffer: pixelBuffer, display: display, drawable: drawable)
+    }
+}
+
+class AVSampleBufferDisplayView: UIView {
+    #if canImport(UIKit)
+    override public class var layerClass: AnyClass { AVSampleBufferDisplayLayer.self }
+    #endif
+    var displayLayer: AVSampleBufferDisplayLayer {
+        // swiftlint:disable force_cast
+        layer as! AVSampleBufferDisplayLayer
+        // swiftlint:enable force_cast
+    }
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        #if !canImport(UIKit)
+        layer = AVSampleBufferDisplayLayer()
+        #endif
+        var controlTimebase: CMTimebase?
+        CMTimebaseCreateWithSourceClock(allocator: kCFAllocatorDefault, sourceClock: CMClockGetHostTimeClock(), timebaseOut: &controlTimebase)
+        if let controlTimebase {
+            displayLayer.controlTimebase = controlTimebase
+            CMTimebaseSetTime(controlTimebase, time: .zero)
+            CMTimebaseSetRate(controlTimebase, rate: 1.0)
+        }
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    func enqueue(imageBuffer: CVPixelBuffer, formatDescription: CMVideoFormatDescription, time: CMTime) {
+        let timing = CMSampleTimingInfo(duration: .invalid, presentationTimeStamp: .zero, decodeTimeStamp: .invalid)
+        //        var timing = CMSampleTimingInfo(duration: .invalid, presentationTimeStamp: time, decodeTimeStamp: .invalid)
+        var sampleBuffer: CMSampleBuffer?
+        CMSampleBufferCreateReadyWithImageBuffer(allocator: kCFAllocatorDefault, imageBuffer: imageBuffer, formatDescription: formatDescription, sampleTiming: [timing], sampleBufferOut: &sampleBuffer)
+        if let sampleBuffer {
+            if let attachmentsArray = CMSampleBufferGetSampleAttachmentsArray(sampleBuffer, createIfNecessary: true) as? [NSMutableDictionary], let dic = attachmentsArray.first {
+                dic[kCMSampleAttachmentKey_DisplayImmediately] = true
+            }
+            if displayLayer.isReadyForMoreMediaData {
+                displayLayer.enqueue(sampleBuffer)
+            } else {
+                KSLog("[video] AVSampleBufferDisplayLayer not readyForMoreMediaData. video time \(time), controlTime \(displayLayer.timebase.time) ")
+                displayLayer.enqueue(sampleBuffer)
+            }
+            if #available(macOS 11.0, iOS 14, tvOS 14, *) {
+                if displayLayer.requiresFlushToResumeDecoding {
+                    KSLog("[video] AVSampleBufferDisplayLayer requiresFlushToResumeDecoding so flush")
+                    displayLayer.flush()
+                }
+            }
+            if displayLayer.status == .failed {
+                KSLog("[video] AVSampleBufferDisplayLayer status failed so flush")
+                displayLayer.flush()
+                //                    if let error = displayLayer.error as NSError?, error.code == -11847 {
+                //                        displayLayer.stopRequestingMediaData()
+                //                    }
+            }
+        }
+    }
+}
+
+#if os(macOS)
+import CoreVideo
+
+class CADisplayLink {
+    private let displayLink: CVDisplayLink
+    private var runloop: RunLoop?
+    private var mode = RunLoop.Mode.default
+    public var preferredFramesPerSecond = 60
+    @available(macOS 12.0, *)
+    public var preferredFrameRateRange: CAFrameRateRange {
+        get {
+            CAFrameRateRange()
+        }
+        set {}
+    }
+
+    public var timestamp: TimeInterval {
+        var timeStamp = CVTimeStamp()
+        if CVDisplayLinkGetCurrentTime(displayLink, &timeStamp) == kCVReturnSuccess, (timeStamp.flags & CVTimeStampFlags.hostTimeValid.rawValue) != 0 {
+            return TimeInterval(timeStamp.hostTime / NSEC_PER_SEC)
+        }
+        return 0
+    }
+
+    public var duration: TimeInterval {
+        CVDisplayLinkGetActualOutputVideoRefreshPeriod(displayLink)
+    }
+
+    public var targetTimestamp: TimeInterval {
+        duration + timestamp
+    }
+
+    public var isPaused: Bool {
+        get {
+            !CVDisplayLinkIsRunning(displayLink)
+        }
+        set {
+            if newValue {
+                CVDisplayLinkStop(displayLink)
+            } else {
+                CVDisplayLinkStart(displayLink)
+            }
+        }
+    }
+
+    public init(target: NSObject, selector: Selector) {
+        var displayLink: CVDisplayLink?
+        CVDisplayLinkCreateWithActiveCGDisplays(&displayLink)
+        self.displayLink = displayLink!
+        CVDisplayLinkSetOutputHandler(self.displayLink) { [weak self] _, _, _, _, _ in
+            guard let self else { return kCVReturnSuccess }
+            self.runloop?.perform(selector, target: target, argument: self, order: 0, modes: [self.mode])
+            return kCVReturnSuccess
+        }
+        CVDisplayLinkStart(self.displayLink)
+    }
+
+    public init(block: @escaping (() -> Void)) {
+        var displayLink: CVDisplayLink?
+        CVDisplayLinkCreateWithActiveCGDisplays(&displayLink)
+        self.displayLink = displayLink!
+        CVDisplayLinkSetOutputHandler(self.displayLink) { _, _, _, _, _ in
+            block()
+            return kCVReturnSuccess
+        }
+        CVDisplayLinkStart(self.displayLink)
+    }
+
+    open func add(to runloop: RunLoop, forMode mode: RunLoop.Mode) {
+        self.runloop = runloop
+        self.mode = mode
+    }
+
+    public func invalidate() {
+        isPaused = true
+        runloop = nil
+        CVDisplayLinkSetOutputHandler(displayLink) { _, _, _, _, _ in
+            kCVReturnError
+        }
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/MEPlayer/Model.swift

@@ -0,0 +1,493 @@
+//
+//  Model.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/9.
+//
+
+import AVFoundation
+import CoreMedia
+import Libavcodec
+#if canImport(UIKit)
+import UIKit
+#endif
+
+// MARK: enum
+
+enum MESourceState {
+    case idle
+    case opening
+    case opened
+    case reading
+    case seeking
+    case paused
+    case finished
+    case closed
+    case failed
+}
+
+// MARK: delegate
+
+public protocol OutputRenderSourceDelegate: AnyObject {
+    func getVideoOutputRender(force: Bool) -> VideoVTBFrame?
+    func getAudioOutputRender() -> AudioFrame?
+    func setAudio(time: CMTime, position: Int64)
+    func setVideo(time: CMTime, position: Int64)
+}
+
+protocol CodecCapacityDelegate: AnyObject {
+    func codecDidFinished(track: some CapacityProtocol)
+}
+
+protocol MEPlayerDelegate: AnyObject {
+    func sourceDidChange(loadingState: LoadingState)
+    func sourceDidOpened()
+    func sourceDidFailed(error: NSError?)
+    func sourceDidFinished()
+    func sourceDidChange(oldBitRate: Int64, newBitrate: Int64)
+}
+
+// MARK: protocol
+
+public protocol ObjectQueueItem {
+    var timebase: Timebase { get }
+    var timestamp: Int64 { get set }
+    var duration: Int64 { get set }
+    // byte position
+    var position: Int64 { get set }
+    var size: Int32 { get set }
+}
+
+extension ObjectQueueItem {
+    var seconds: TimeInterval { cmtime.seconds }
+    var cmtime: CMTime { timebase.cmtime(for: timestamp) }
+}
+
+public protocol FrameOutput: AnyObject {
+    var renderSource: OutputRenderSourceDelegate? { get set }
+    func pause()
+    func flush()
+    func play()
+}
+
+protocol MEFrame: ObjectQueueItem {
+    var timebase: Timebase { get set }
+}
+
+// MARK: model
+
+// for MEPlayer
+public extension KSOptions {
+    /// 开启VR模式的陀飞轮
+    static var enableSensor = true
+    static var stackSize = 65536
+    static var isClearVideoWhereReplace = true
+    static var audioPlayerType: AudioOutput.Type = AudioEnginePlayer.self
+    static var videoPlayerType: (VideoOutput & UIView).Type = MetalPlayView.self
+    static var yadifMode = 1
+    static var deInterlaceAddIdet = false
+    static func colorSpace(ycbcrMatrix: CFString?, transferFunction: CFString?) -> CGColorSpace? {
+        switch ycbcrMatrix {
+        case kCVImageBufferYCbCrMatrix_ITU_R_709_2:
+            return CGColorSpace(name: CGColorSpace.itur_709)
+        case kCVImageBufferYCbCrMatrix_ITU_R_601_4:
+            return CGColorSpace(name: CGColorSpace.sRGB)
+        case kCVImageBufferYCbCrMatrix_ITU_R_2020:
+            if transferFunction == kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ {
+                if #available(macOS 11.0, iOS 14.0, tvOS 14.0, *) {
+                    return CGColorSpace(name: CGColorSpace.itur_2100_PQ)
+                } else if #available(macOS 10.15.4, iOS 13.4, tvOS 13.4, *) {
+                    return CGColorSpace(name: CGColorSpace.itur_2020_PQ)
+                } else {
+                    return CGColorSpace(name: CGColorSpace.itur_2020_PQ_EOTF)
+                }
+            } else if transferFunction == kCVImageBufferTransferFunction_ITU_R_2100_HLG {
+                if #available(macOS 11.0, iOS 14.0, tvOS 14.0, *) {
+                    return CGColorSpace(name: CGColorSpace.itur_2100_HLG)
+                } else {
+                    return CGColorSpace(name: CGColorSpace.itur_2020)
+                }
+            } else {
+                return CGColorSpace(name: CGColorSpace.itur_2020)
+            }
+        default:
+            return CGColorSpace(name: CGColorSpace.sRGB)
+        }
+    }
+
+    static func colorSpace(colorPrimaries: CFString?) -> CGColorSpace? {
+        switch colorPrimaries {
+        case kCVImageBufferColorPrimaries_ITU_R_709_2:
+            return CGColorSpace(name: CGColorSpace.sRGB)
+        case kCVImageBufferColorPrimaries_DCI_P3:
+            if #available(macOS 10.15.4, iOS 13.4, tvOS 13.4, *) {
+                return CGColorSpace(name: CGColorSpace.displayP3_PQ)
+            } else {
+                return CGColorSpace(name: CGColorSpace.displayP3_PQ_EOTF)
+            }
+        case kCVImageBufferColorPrimaries_ITU_R_2020:
+            if #available(macOS 11.0, iOS 14.0, tvOS 14.0, *) {
+                return CGColorSpace(name: CGColorSpace.itur_2100_PQ)
+            } else if #available(macOS 10.15.4, iOS 13.4, tvOS 13.4, *) {
+                return CGColorSpace(name: CGColorSpace.itur_2020_PQ)
+            } else {
+                return CGColorSpace(name: CGColorSpace.itur_2020_PQ_EOTF)
+            }
+        default:
+            return CGColorSpace(name: CGColorSpace.sRGB)
+        }
+    }
+
+    static func pixelFormat(planeCount: Int, bitDepth: Int32) -> [MTLPixelFormat] {
+        if planeCount == 3 {
+            if bitDepth > 8 {
+                return [.r16Unorm, .r16Unorm, .r16Unorm]
+            } else {
+                return [.r8Unorm, .r8Unorm, .r8Unorm]
+            }
+        } else if planeCount == 2 {
+            if bitDepth > 8 {
+                return [.r16Unorm, .rg16Unorm]
+            } else {
+                return [.r8Unorm, .rg8Unorm]
+            }
+        } else {
+            return [colorPixelFormat(bitDepth: bitDepth)]
+        }
+    }
+
+    static func colorPixelFormat(bitDepth: Int32) -> MTLPixelFormat {
+        if bitDepth == 10 {
+            return .bgr10a2Unorm
+        } else {
+            return .bgra8Unorm
+        }
+    }
+}
+
+enum MECodecState {
+    case idle
+    case decoding
+    case flush
+    case closed
+    case failed
+    case finished
+}
+
+public struct Timebase {
+    static let defaultValue = Timebase(num: 1, den: 1)
+    public let num: Int32
+    public let den: Int32
+    func getPosition(from seconds: TimeInterval) -> Int64 { Int64(seconds * TimeInterval(den) / TimeInterval(num)) }
+
+    func cmtime(for timestamp: Int64) -> CMTime { CMTime(value: timestamp * Int64(num), timescale: den) }
+}
+
+extension Timebase {
+    public var rational: AVRational { AVRational(num: num, den: den) }
+
+    init(_ rational: AVRational) {
+        num = rational.num
+        den = rational.den
+    }
+}
+
+final class Packet: ObjectQueueItem {
+    var duration: Int64 = 0
+    var timestamp: Int64 = 0
+    var position: Int64 = 0
+    var size: Int32 = 0
+    private(set) var corePacket = av_packet_alloc()
+    var timebase: Timebase {
+        assetTrack.timebase
+    }
+
+    var isKeyFrame: Bool {
+        if let corePacket {
+            return corePacket.pointee.flags & AV_PKT_FLAG_KEY == AV_PKT_FLAG_KEY
+        } else {
+            return false
+        }
+    }
+
+    var assetTrack: FFmpegAssetTrack! {
+        didSet {
+            guard let packet = corePacket?.pointee else {
+                return
+            }
+            timestamp = packet.pts == Int64.min ? packet.dts : packet.pts
+            position = packet.pos
+            duration = packet.duration
+            size = packet.size
+        }
+    }
+
+    deinit {
+        av_packet_unref(corePacket)
+        av_packet_free(&corePacket)
+    }
+}
+
+final class SubtitleFrame: MEFrame {
+    var timestamp: Int64 = 0
+    var timebase: Timebase
+    var duration: Int64 = 0
+    var position: Int64 = 0
+    var size: Int32 = 0
+    let part: SubtitlePart
+    init(part: SubtitlePart, timebase: Timebase) {
+        self.part = part
+        self.timebase = timebase
+    }
+}
+
+public final class AudioFrame: MEFrame {
+    public let dataSize: Int
+    public let audioFormat: AVAudioFormat
+    public internal(set) var timebase = Timebase.defaultValue
+    public var timestamp: Int64 = 0
+    public var duration: Int64 = 0
+    public var position: Int64 = 0
+    public var size: Int32 = 0
+    public var data: [UnsafeMutablePointer<UInt8>?]
+    public var numberOfSamples: UInt32 = 0
+    public init(dataSize: Int, audioFormat: AVAudioFormat) {
+        self.dataSize = dataSize
+        self.audioFormat = audioFormat
+        let count = audioFormat.isInterleaved ? 1 : audioFormat.channelCount
+        data = (0 ..< count).map { _ in
+            UnsafeMutablePointer<UInt8>.allocate(capacity: dataSize)
+        }
+    }
+
+    init(array: [AudioFrame]) {
+        audioFormat = array[0].audioFormat
+        timebase = array[0].timebase
+        timestamp = array[0].timestamp
+        position = array[0].position
+        var dataSize = 0
+        for frame in array {
+            duration += frame.duration
+            dataSize += frame.dataSize
+            size += frame.size
+            numberOfSamples += frame.numberOfSamples
+        }
+        self.dataSize = dataSize
+        let count = audioFormat.isInterleaved ? 1 : audioFormat.channelCount
+        data = (0 ..< count).map { _ in
+            UnsafeMutablePointer<UInt8>.allocate(capacity: dataSize)
+        }
+        var offset = 0
+        for frame in array {
+            for i in 0 ..< data.count {
+                data[i]?.advanced(by: offset).initialize(from: frame.data[i]!, count: frame.dataSize)
+            }
+            offset += frame.dataSize
+        }
+    }
+
+    deinit {
+        for i in 0 ..< data.count {
+            data[i]?.deinitialize(count: dataSize)
+            data[i]?.deallocate()
+        }
+        data.removeAll()
+    }
+
+    public func toFloat() -> [ContiguousArray<Float>] {
+        var array = [ContiguousArray<Float>]()
+        for i in 0 ..< data.count {
+            switch audioFormat.commonFormat {
+            case .pcmFormatInt16:
+                let capacity = dataSize / MemoryLayout<Int16>.size
+                data[i]?.withMemoryRebound(to: Int16.self, capacity: capacity) { src in
+                    var des = ContiguousArray<Float>(repeating: 0, count: Int(capacity))
+                    for j in 0 ..< capacity {
+                        des[j] = max(-1.0, min(Float(src[j]) / 32767.0, 1.0))
+                    }
+                    array.append(des)
+                }
+            case .pcmFormatInt32:
+                let capacity = dataSize / MemoryLayout<Int32>.size
+                data[i]?.withMemoryRebound(to: Int32.self, capacity: capacity) { src in
+                    var des = ContiguousArray<Float>(repeating: 0, count: Int(capacity))
+                    for j in 0 ..< capacity {
+                        des[j] = max(-1.0, min(Float(src[j]) / 2_147_483_647.0, 1.0))
+                    }
+                    array.append(des)
+                }
+            default:
+                let capacity = dataSize / MemoryLayout<Float>.size
+                data[i]?.withMemoryRebound(to: Float.self, capacity: capacity) { src in
+                    var des = ContiguousArray<Float>(repeating: 0, count: Int(capacity))
+                    for j in 0 ..< capacity {
+                        des[j] = src[j]
+                    }
+                    array.append(ContiguousArray<Float>(des))
+                }
+            }
+        }
+        return array
+    }
+
+    public func toPCMBuffer() -> AVAudioPCMBuffer? {
+        guard let pcmBuffer = AVAudioPCMBuffer(pcmFormat: audioFormat, frameCapacity: numberOfSamples) else {
+            return nil
+        }
+        pcmBuffer.frameLength = pcmBuffer.frameCapacity
+        for i in 0 ..< min(Int(pcmBuffer.format.channelCount), data.count) {
+            switch audioFormat.commonFormat {
+            case .pcmFormatInt16:
+                let capacity = dataSize / MemoryLayout<Int16>.size
+                data[i]?.withMemoryRebound(to: Int16.self, capacity: capacity) { src in
+                    pcmBuffer.int16ChannelData?[i].update(from: src, count: capacity)
+                }
+            case .pcmFormatInt32:
+                let capacity = dataSize / MemoryLayout<Int32>.size
+                data[i]?.withMemoryRebound(to: Int32.self, capacity: capacity) { src in
+                    pcmBuffer.int32ChannelData?[i].update(from: src, count: capacity)
+                }
+            default:
+                let capacity = dataSize / MemoryLayout<Float>.size
+                data[i]?.withMemoryRebound(to: Float.self, capacity: capacity) { src in
+                    pcmBuffer.floatChannelData?[i].update(from: src, count: capacity)
+                }
+            }
+        }
+        return pcmBuffer
+    }
+
+    public func toCMSampleBuffer() -> CMSampleBuffer? {
+        var outBlockListBuffer: CMBlockBuffer?
+        CMBlockBufferCreateEmpty(allocator: kCFAllocatorDefault, capacity: UInt32(data.count), flags: 0, blockBufferOut: &outBlockListBuffer)
+        guard let outBlockListBuffer else {
+            return nil
+        }
+        let sampleSize = Int(audioFormat.sampleSize)
+        let sampleCount = CMItemCount(numberOfSamples)
+        let dataByteSize = sampleCount * sampleSize
+        if dataByteSize > dataSize {
+            assertionFailure("dataByteSize: \(dataByteSize),render.dataSize: \(dataSize)")
+        }
+        for i in 0 ..< data.count {
+            var outBlockBuffer: CMBlockBuffer?
+            CMBlockBufferCreateWithMemoryBlock(
+                allocator: kCFAllocatorDefault,
+                memoryBlock: nil,
+                blockLength: dataByteSize,
+                blockAllocator: kCFAllocatorDefault,
+                customBlockSource: nil,
+                offsetToData: 0,
+                dataLength: dataByteSize,
+                flags: kCMBlockBufferAssureMemoryNowFlag,
+                blockBufferOut: &outBlockBuffer
+            )
+            if let outBlockBuffer {
+                CMBlockBufferReplaceDataBytes(
+                    with: data[i]!,
+                    blockBuffer: outBlockBuffer,
+                    offsetIntoDestination: 0,
+                    dataLength: dataByteSize
+                )
+                CMBlockBufferAppendBufferReference(
+                    outBlockListBuffer,
+                    targetBBuf: outBlockBuffer,
+                    offsetToData: 0,
+                    dataLength: CMBlockBufferGetDataLength(outBlockBuffer),
+                    flags: 0
+                )
+            }
+        }
+        var sampleBuffer: CMSampleBuffer?
+        // 因为sampleRate跟timescale没有对齐，所以导致杂音。所以要让duration为invalid
+//        let duration = CMTime(value: CMTimeValue(sampleCount), timescale: CMTimeScale(audioFormat.sampleRate))
+        let duration = CMTime.invalid
+        let timing = CMSampleTimingInfo(duration: duration, presentationTimeStamp: cmtime, decodeTimeStamp: .invalid)
+        let sampleSizeEntryCount: CMItemCount
+        let sampleSizeArray: [Int]?
+        if audioFormat.isInterleaved {
+            sampleSizeEntryCount = 1
+            sampleSizeArray = [sampleSize]
+        } else {
+            sampleSizeEntryCount = 0
+            sampleSizeArray = nil
+        }
+        CMSampleBufferCreateReady(allocator: kCFAllocatorDefault, dataBuffer: outBlockListBuffer, formatDescription: audioFormat.formatDescription, sampleCount: sampleCount, sampleTimingEntryCount: 1, sampleTimingArray: [timing], sampleSizeEntryCount: sampleSizeEntryCount, sampleSizeArray: sampleSizeArray, sampleBufferOut: &sampleBuffer)
+        return sampleBuffer
+    }
+}
+
+public final class VideoVTBFrame: MEFrame {
+    public var timebase = Timebase.defaultValue
+    // 交叉视频的duration会不准，直接减半了
+    public var duration: Int64 = 0
+    public var position: Int64 = 0
+    public var timestamp: Int64 = 0
+    public var size: Int32 = 0
+    public let fps: Float
+    public let isDovi: Bool
+    public var edrMetaData: EDRMetaData? = nil
+    var corePixelBuffer: PixelBufferProtocol?
+    init(fps: Float, isDovi: Bool) {
+        self.fps = fps
+        self.isDovi = isDovi
+    }
+}
+
+extension VideoVTBFrame {
+    #if !os(tvOS)
+    @available(iOS 16, *)
+    var edrMetadata: CAEDRMetadata? {
+        if var contentData = edrMetaData?.contentData, var displayData = edrMetaData?.displayData {
+            let data = Data(bytes: &displayData, count: MemoryLayout<MasteringDisplayMetadata>.stride)
+            let data2 = Data(bytes: &contentData, count: MemoryLayout<ContentLightMetadata>.stride)
+            return CAEDRMetadata.hdr10(displayInfo: data, contentInfo: data2, opticalOutputScale: 10000)
+        }
+        if var ambientViewingEnvironment = edrMetaData?.ambientViewingEnvironment {
+            let data = Data(bytes: &ambientViewingEnvironment, count: MemoryLayout<AmbientViewingEnvironment>.stride)
+            if #available(macOS 14.0, iOS 17.0, *) {
+                return CAEDRMetadata.hlg(ambientViewingEnvironment: data)
+            } else {
+                return CAEDRMetadata.hlg
+            }
+        }
+        if corePixelBuffer?.transferFunction == kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ {
+            return CAEDRMetadata.hdr10(minLuminance: 0.1, maxLuminance: 1000, opticalOutputScale: 10000)
+        } else if corePixelBuffer?.transferFunction == kCVImageBufferTransferFunction_ITU_R_2100_HLG {
+            return CAEDRMetadata.hlg
+        }
+        return nil
+    }
+    #endif
+}
+
+public struct EDRMetaData {
+    var displayData: MasteringDisplayMetadata?
+    var contentData: ContentLightMetadata?
+    var ambientViewingEnvironment: AmbientViewingEnvironment?
+}
+
+public struct MasteringDisplayMetadata {
+    let display_primaries_r_x: UInt16
+    let display_primaries_r_y: UInt16
+    let display_primaries_g_x: UInt16
+    let display_primaries_g_y: UInt16
+    let display_primaries_b_x: UInt16
+    let display_primaries_b_y: UInt16
+    let white_point_x: UInt16
+    let white_point_y: UInt16
+    let minLuminance: UInt32
+    let maxLuminance: UInt32
+}
+
+public struct ContentLightMetadata {
+    let MaxCLL: UInt16
+    let MaxFALL: UInt16
+}
+
+// https://developer.apple.com/documentation/technotes/tn3145-hdr-video-metadata
+public struct AmbientViewingEnvironment {
+    let ambient_illuminance: UInt32
+    let ambient_light_x: UInt16
+    let ambient_light_y: UInt16
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/Resample.swift

@@ -0,0 +1,384 @@
+//
+//  Resample.swift
+//  KSPlayer-iOS
+//
+//  Created by kintan on 2020/1/27.
+//
+
+import AVFoundation
+import CoreGraphics
+import CoreMedia
+import Libavcodec
+import Libswresample
+import Libswscale
+
+protocol FrameTransfer {
+    func transfer(avframe: UnsafeMutablePointer<AVFrame>) -> UnsafeMutablePointer<AVFrame>
+    func shutdown()
+}
+
+protocol FrameChange {
+    func change(avframe: UnsafeMutablePointer<AVFrame>) throws -> MEFrame
+    func shutdown()
+}
+
+class VideoSwscale: FrameTransfer {
+    private var imgConvertCtx: OpaquePointer?
+    private var format: AVPixelFormat = AV_PIX_FMT_NONE
+    private var height: Int32 = 0
+    private var width: Int32 = 0
+    private var outFrame: UnsafeMutablePointer<AVFrame>?
+    private func setup(format: AVPixelFormat, width: Int32, height: Int32, linesize _: Int32) {
+        if self.format == format, self.width == width, self.height == height {
+            return
+        }
+        self.format = format
+        self.height = height
+        self.width = width
+        if format.osType() != nil {
+            sws_freeContext(imgConvertCtx)
+            imgConvertCtx = nil
+            outFrame = nil
+        } else {
+            let dstFormat = format.bestPixelFormat
+            imgConvertCtx = sws_getCachedContext(imgConvertCtx, width, height, self.format, width, height, dstFormat, SWS_BICUBIC, nil, nil, nil)
+            outFrame = av_frame_alloc()
+            outFrame?.pointee.format = dstFormat.rawValue
+            outFrame?.pointee.width = width
+            outFrame?.pointee.height = height
+        }
+    }
+
+    func transfer(avframe: UnsafeMutablePointer<AVFrame>) -> UnsafeMutablePointer<AVFrame> {
+        setup(format: AVPixelFormat(rawValue: avframe.pointee.format), width: avframe.pointee.width, height: avframe.pointee.height, linesize: avframe.pointee.linesize.0)
+        if let imgConvertCtx, let outFrame {
+            sws_scale_frame(imgConvertCtx, outFrame, avframe)
+            return outFrame
+        }
+        return avframe
+    }
+
+    func shutdown() {
+        sws_freeContext(imgConvertCtx)
+        imgConvertCtx = nil
+    }
+}
+
+class VideoSwresample: FrameChange {
+    private var imgConvertCtx: OpaquePointer?
+    private var format: AVPixelFormat = AV_PIX_FMT_NONE
+    private var height: Int32 = 0
+    private var width: Int32 = 0
+    private var pool: CVPixelBufferPool?
+    private var dstHeight: Int32?
+    private var dstWidth: Int32?
+    private let dstFormat: AVPixelFormat?
+    private let fps: Float
+    private let isDovi: Bool
+    init(dstWidth: Int32? = nil, dstHeight: Int32? = nil, dstFormat: AVPixelFormat? = nil, fps: Float = 60, isDovi: Bool) {
+        self.dstWidth = dstWidth
+        self.dstHeight = dstHeight
+        self.dstFormat = dstFormat
+        self.fps = fps
+        self.isDovi = isDovi
+    }
+
+    func change(avframe: UnsafeMutablePointer<AVFrame>) throws -> MEFrame {
+        let frame = VideoVTBFrame(fps: fps, isDovi: isDovi)
+        if avframe.pointee.format == AV_PIX_FMT_VIDEOTOOLBOX.rawValue {
+            frame.corePixelBuffer = unsafeBitCast(avframe.pointee.data.3, to: CVPixelBuffer.self)
+        } else {
+            frame.corePixelBuffer = transfer(frame: avframe.pointee)
+        }
+        return frame
+    }
+
+    private func setup(format: AVPixelFormat, width: Int32, height: Int32, linesize: Int32) {
+        if self.format == format, self.width == width, self.height == height {
+            return
+        }
+        self.format = format
+        self.height = height
+        self.width = width
+        let dstWidth = dstWidth ?? width
+        let dstHeight = dstHeight ?? height
+        let pixelFormatType: OSType
+        if self.dstWidth == nil, self.dstHeight == nil, dstFormat == nil, let osType = format.osType() {
+            pixelFormatType = osType
+            sws_freeContext(imgConvertCtx)
+            imgConvertCtx = nil
+        } else {
+            let dstFormat = dstFormat ?? format.bestPixelFormat
+            pixelFormatType = dstFormat.osType()!
+//            imgConvertCtx = sws_getContext(width, height, self.format, width, height, dstFormat, SWS_FAST_BILINEAR, nil, nil, nil)
+            // AV_PIX_FMT_VIDEOTOOLBOX格式是无法进行swscale的
+            imgConvertCtx = sws_getCachedContext(imgConvertCtx, width, height, self.format, dstWidth, dstHeight, dstFormat, SWS_FAST_BILINEAR, nil, nil, nil)
+        }
+        pool = CVPixelBufferPool.create(width: dstWidth, height: dstHeight, bytesPerRowAlignment: linesize, pixelFormatType: pixelFormatType)
+    }
+
+    func transfer(frame: AVFrame) -> PixelBufferProtocol? {
+        let format = AVPixelFormat(rawValue: frame.format)
+        let width = frame.width
+        let height = frame.height
+        if format.leftShift > 0 {
+            return PixelBuffer(frame: frame)
+        }
+        let pbuf = transfer(format: format, width: width, height: height, data: Array(tuple: frame.data), linesize: Array(tuple: frame.linesize))
+        if let pbuf {
+            pbuf.aspectRatio = frame.sample_aspect_ratio.size
+            pbuf.yCbCrMatrix = frame.colorspace.ycbcrMatrix
+            pbuf.colorPrimaries = frame.color_primaries.colorPrimaries
+            pbuf.transferFunction = frame.color_trc.transferFunction
+            // vt_pixbuf_set_colorspace
+            if pbuf.transferFunction == kCVImageBufferTransferFunction_UseGamma {
+                let gamma = NSNumber(value: frame.color_trc == AVCOL_TRC_GAMMA22 ? 2.2 : 2.8)
+                CVBufferSetAttachment(pbuf, kCVImageBufferGammaLevelKey, gamma, .shouldPropagate)
+            }
+            if let chroma = frame.chroma_location.chroma {
+                CVBufferSetAttachment(pbuf, kCVImageBufferChromaLocationTopFieldKey, chroma, .shouldPropagate)
+            }
+            pbuf.colorspace = KSOptions.colorSpace(ycbcrMatrix: pbuf.yCbCrMatrix, transferFunction: pbuf.transferFunction)
+        }
+        return pbuf
+    }
+
+    func transfer(format: AVPixelFormat, width: Int32, height: Int32, data: [UnsafeMutablePointer<UInt8>?], linesize: [Int32]) -> CVPixelBuffer? {
+        setup(format: format, width: width, height: height, linesize: linesize[1] == 0 ? linesize[0] : linesize[1])
+        guard let pool else {
+            return nil
+        }
+        return autoreleasepool {
+            var pbuf: CVPixelBuffer?
+            let ret = CVPixelBufferPoolCreatePixelBuffer(kCFAllocatorDefault, pool, &pbuf)
+            guard let pbuf, ret == kCVReturnSuccess else {
+                return nil
+            }
+            CVPixelBufferLockBaseAddress(pbuf, CVPixelBufferLockFlags(rawValue: 0))
+            let bufferPlaneCount = pbuf.planeCount
+            if let imgConvertCtx {
+                let bytesPerRow = (0 ..< bufferPlaneCount).map { i in
+                    Int32(CVPixelBufferGetBytesPerRowOfPlane(pbuf, i))
+                }
+                let contents = (0 ..< bufferPlaneCount).map { i in
+                    pbuf.baseAddressOfPlane(at: i)?.assumingMemoryBound(to: UInt8.self)
+                }
+                _ = sws_scale(imgConvertCtx, data.map { UnsafePointer($0) }, linesize, 0, height, contents, bytesPerRow)
+            } else {
+                let planeCount = format.planeCount
+                let byteCount = format.bitDepth > 8 ? 2 : 1
+                for i in 0 ..< bufferPlaneCount {
+                    let height = pbuf.heightOfPlane(at: i)
+                    let size = Int(linesize[i])
+                    let bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(pbuf, i)
+                    var contents = pbuf.baseAddressOfPlane(at: i)
+                    var source = data[i]!
+                    if bufferPlaneCount < planeCount, i + 2 == planeCount {
+                        var sourceU = data[i]!
+                        var sourceV = data[i + 1]!
+                        var k = 0
+                        while k < height {
+                            var j = 0
+                            while j < size {
+                                contents?.advanced(by: 2 * j).copyMemory(from: sourceU.advanced(by: j), byteCount: byteCount)
+                                contents?.advanced(by: 2 * j + byteCount).copyMemory(from: sourceV.advanced(by: j), byteCount: byteCount)
+                                j += byteCount
+                            }
+                            contents = contents?.advanced(by: bytesPerRow)
+                            sourceU = sourceU.advanced(by: size)
+                            sourceV = sourceV.advanced(by: size)
+                            k += 1
+                        }
+                    } else if bytesPerRow == size {
+                        contents?.copyMemory(from: source, byteCount: height * size)
+                    } else {
+                        var j = 0
+                        while j < height {
+                            contents?.advanced(by: j * bytesPerRow).copyMemory(from: source.advanced(by: j * size), byteCount: size)
+                            j += 1
+                        }
+                    }
+                }
+            }
+            CVPixelBufferUnlockBaseAddress(pbuf, CVPixelBufferLockFlags(rawValue: 0))
+            return pbuf
+        }
+    }
+
+    func shutdown() {
+        sws_freeContext(imgConvertCtx)
+        imgConvertCtx = nil
+    }
+}
+
+extension BinaryInteger {
+    func alignment(value: Self) -> Self {
+        let remainder = self % value
+        return remainder == 0 ? self : self + value - remainder
+    }
+}
+
+typealias SwrContext = OpaquePointer
+
+class AudioSwresample: FrameChange {
+    private var swrContext: SwrContext?
+    private var descriptor: AudioDescriptor
+    private var outChannel: AVChannelLayout
+    init(audioDescriptor: AudioDescriptor) {
+        descriptor = audioDescriptor
+        outChannel = audioDescriptor.outChannel
+        _ = setup(descriptor: descriptor)
+    }
+
+    private func setup(descriptor: AudioDescriptor) -> Bool {
+        var result = swr_alloc_set_opts2(&swrContext, &descriptor.outChannel, descriptor.audioFormat.sampleFormat, Int32(descriptor.audioFormat.sampleRate), &descriptor.channel, descriptor.sampleFormat, descriptor.sampleRate, 0, nil)
+        result = swr_init(swrContext)
+        if result < 0 {
+            shutdown()
+            return false
+        } else {
+            outChannel = descriptor.outChannel
+            return true
+        }
+    }
+
+    func change(avframe: UnsafeMutablePointer<AVFrame>) throws -> MEFrame {
+        if !(descriptor == avframe.pointee) || outChannel != descriptor.outChannel {
+            let newDescriptor = AudioDescriptor(frame: avframe.pointee)
+            if setup(descriptor: newDescriptor) {
+                descriptor = newDescriptor
+            } else {
+                throw NSError(errorCode: .auidoSwrInit, userInfo: ["outChannel": newDescriptor.outChannel, "inChannel": newDescriptor.channel])
+            }
+        }
+        let numberOfSamples = avframe.pointee.nb_samples
+        let outSamples = swr_get_out_samples(swrContext, numberOfSamples)
+        var frameBuffer = Array(tuple: avframe.pointee.data).map { UnsafePointer<UInt8>($0) }
+        let channels = descriptor.outChannel.nb_channels
+        var bufferSize = [Int32(0)]
+        // 返回值是有乘以声道，所以不用返回值
+        _ = av_samples_get_buffer_size(&bufferSize, channels, outSamples, descriptor.audioFormat.sampleFormat, 1)
+        let frame = AudioFrame(dataSize: Int(bufferSize[0]), audioFormat: descriptor.audioFormat)
+        frame.numberOfSamples = UInt32(swr_convert(swrContext, &frame.data, outSamples, &frameBuffer, numberOfSamples))
+        return frame
+    }
+
+    func shutdown() {
+        swr_free(&swrContext)
+    }
+}
+
+public class AudioDescriptor: Equatable {
+//    static let defaultValue = AudioDescriptor()
+    public let sampleRate: Int32
+    public private(set) var audioFormat: AVAudioFormat
+    fileprivate(set) var channel: AVChannelLayout
+    fileprivate let sampleFormat: AVSampleFormat
+    fileprivate var outChannel: AVChannelLayout
+
+    private convenience init() {
+        self.init(sampleFormat: AV_SAMPLE_FMT_FLT, sampleRate: 48000, channel: AVChannelLayout.defaultValue)
+    }
+
+    convenience init(codecpar: AVCodecParameters) {
+        self.init(sampleFormat: AVSampleFormat(rawValue: codecpar.format), sampleRate: codecpar.sample_rate, channel: codecpar.ch_layout)
+    }
+
+    convenience init(frame: AVFrame) {
+        self.init(sampleFormat: AVSampleFormat(rawValue: frame.format), sampleRate: frame.sample_rate, channel: frame.ch_layout)
+    }
+
+    init(sampleFormat: AVSampleFormat, sampleRate: Int32, channel: AVChannelLayout) {
+        self.channel = channel
+        outChannel = channel
+        if sampleRate <= 0 {
+            self.sampleRate = 48000
+        } else {
+            self.sampleRate = sampleRate
+        }
+        self.sampleFormat = sampleFormat
+        #if os(macOS)
+        let channelCount = AVAudioChannelCount(2)
+        #else
+        let channelCount = KSOptions.outputNumberOfChannels(channelCount: AVAudioChannelCount(outChannel.nb_channels))
+        #endif
+        audioFormat = AudioDescriptor.audioFormat(sampleFormat: sampleFormat, sampleRate: self.sampleRate, outChannel: &outChannel, channelCount: channelCount)
+    }
+
+    public static func == (lhs: AudioDescriptor, rhs: AudioDescriptor) -> Bool {
+        lhs.sampleFormat == rhs.sampleFormat && lhs.sampleRate == rhs.sampleRate && lhs.channel == rhs.channel
+    }
+
+    public static func == (lhs: AudioDescriptor, rhs: AVFrame) -> Bool {
+        var sampleRate = rhs.sample_rate
+        if sampleRate <= 0 {
+            sampleRate = 48000
+        }
+        return lhs.sampleFormat == AVSampleFormat(rawValue: rhs.format) && lhs.sampleRate == sampleRate && lhs.channel == rhs.ch_layout
+    }
+
+    static func audioFormat(sampleFormat: AVSampleFormat, sampleRate: Int32, outChannel: inout AVChannelLayout, channelCount: AVAudioChannelCount) -> AVAudioFormat {
+        if channelCount != AVAudioChannelCount(outChannel.nb_channels) {
+            av_channel_layout_default(&outChannel, Int32(channelCount))
+        }
+        let layoutTag: AudioChannelLayoutTag
+        if let tag = outChannel.layoutTag {
+            layoutTag = tag
+        } else {
+            av_channel_layout_default(&outChannel, Int32(channelCount))
+            if let tag = outChannel.layoutTag {
+                layoutTag = tag
+            } else {
+                av_channel_layout_default(&outChannel, 2)
+                layoutTag = outChannel.layoutTag!
+            }
+        }
+        KSLog("[audio] out channelLayout: \(outChannel)")
+        var commonFormat: AVAudioCommonFormat
+        var interleaved: Bool
+        switch sampleFormat {
+        case AV_SAMPLE_FMT_S16:
+            commonFormat = .pcmFormatInt16
+            interleaved = true
+        case AV_SAMPLE_FMT_S32:
+            commonFormat = .pcmFormatInt32
+            interleaved = true
+        case AV_SAMPLE_FMT_FLT:
+            commonFormat = .pcmFormatFloat32
+            interleaved = true
+        case AV_SAMPLE_FMT_DBL:
+            commonFormat = .pcmFormatFloat64
+            interleaved = true
+        case AV_SAMPLE_FMT_S16P:
+            commonFormat = .pcmFormatInt16
+            interleaved = false
+        case AV_SAMPLE_FMT_S32P:
+            commonFormat = .pcmFormatInt32
+            interleaved = false
+        case AV_SAMPLE_FMT_FLTP:
+            commonFormat = .pcmFormatFloat32
+            interleaved = false
+        case AV_SAMPLE_FMT_DBLP:
+            commonFormat = .pcmFormatFloat64
+            interleaved = false
+        default:
+            commonFormat = .pcmFormatFloat32
+            interleaved = false
+        }
+        interleaved = KSOptions.audioPlayerType == AudioRendererPlayer.self
+        if !(KSOptions.audioPlayerType == AudioRendererPlayer.self || KSOptions.audioPlayerType == AudioUnitPlayer.self) {
+            commonFormat = .pcmFormatFloat32
+        }
+        return AVAudioFormat(commonFormat: commonFormat, sampleRate: Double(sampleRate), interleaved: interleaved, channelLayout: AVAudioChannelLayout(layoutTag: layoutTag)!)
+        //        AVAudioChannelLayout(layout: outChannel.layoutTag.channelLayout)
+    }
+
+    public func updateAudioFormat() {
+        #if os(macOS)
+        let channelCount = AVAudioChannelCount(2)
+        #else
+        let channelCount = KSOptions.outputNumberOfChannels(channelCount: AVAudioChannelCount(channel.nb_channels))
+        #endif
+        audioFormat = AudioDescriptor.audioFormat(sampleFormat: sampleFormat, sampleRate: sampleRate, outChannel: &outChannel, channelCount: channelCount)
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/SubtitleDecode.swift

@@ -0,0 +1,136 @@
+//
+//  SubtitleDecode.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/11.
+//
+
+import CoreGraphics
+import Foundation
+import Libavformat
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+class SubtitleDecode: DecodeProtocol {
+    private var codecContext: UnsafeMutablePointer<AVCodecContext>?
+    private let scale = VideoSwresample(dstFormat: AV_PIX_FMT_ARGB, isDovi: false)
+    private var subtitle = AVSubtitle()
+    private var startTime = TimeInterval(0)
+    private let assParse = AssParse()
+    required init(assetTrack: FFmpegAssetTrack, options: KSOptions) {
+        startTime = assetTrack.startTime.seconds
+        do {
+            codecContext = try assetTrack.createContext(options: options)
+            if let pointer = codecContext?.pointee.subtitle_header {
+                let subtitleHeader = String(cString: pointer)
+                _ = assParse.canParse(scanner: Scanner(string: subtitleHeader))
+            }
+        } catch {
+            KSLog(error as CustomStringConvertible)
+        }
+    }
+
+    func decode() {}
+
+    func decodeFrame(from packet: Packet, completionHandler: @escaping (Result<MEFrame, Error>) -> Void) {
+        guard let codecContext else {
+            return
+        }
+        var gotsubtitle = Int32(0)
+        _ = avcodec_decode_subtitle2(codecContext, &subtitle, &gotsubtitle, packet.corePacket)
+        if gotsubtitle == 0 {
+            return
+        }
+        let timestamp = packet.timestamp
+        var start = packet.assetTrack.timebase.cmtime(for: timestamp).seconds + TimeInterval(subtitle.start_display_time) / 1000.0
+        if start >= startTime {
+            start -= startTime
+        }
+        var duration = 0.0
+        if subtitle.end_display_time != UInt32.max {
+            duration = TimeInterval(subtitle.end_display_time - subtitle.start_display_time) / 1000.0
+        }
+        if duration == 0, packet.duration != 0 {
+            duration = packet.assetTrack.timebase.cmtime(for: packet.duration).seconds
+        }
+        var parts = text(subtitle: subtitle)
+        /// 不用preSubtitleFrame来进行更新end。而是插入一个空的字幕来更新字幕。
+        /// 因为字幕有可能不按顺序解码。这样就会导致end比start小，然后这个字幕就不会被清空了。
+        if parts.isEmpty {
+            parts.append(SubtitlePart(0, 0, attributedString: nil))
+        }
+        for part in parts {
+            part.start = start
+            if duration == 0 {
+                part.end = .infinity
+            } else {
+                part.end = start + duration
+            }
+            let frame = SubtitleFrame(part: part, timebase: packet.assetTrack.timebase)
+            frame.timestamp = timestamp
+            completionHandler(.success(frame))
+        }
+        avsubtitle_free(&subtitle)
+    }
+
+    func doFlushCodec() {}
+
+    func shutdown() {
+        scale.shutdown()
+        avsubtitle_free(&subtitle)
+        if let codecContext {
+            avcodec_close(codecContext)
+            avcodec_free_context(&self.codecContext)
+        }
+    }
+
+    private func text(subtitle: AVSubtitle) -> [SubtitlePart] {
+        var parts = [SubtitlePart]()
+        var images = [(CGRect, CGImage)]()
+        var origin: CGPoint = .zero
+        var attributedString: NSMutableAttributedString?
+        for i in 0 ..< Int(subtitle.num_rects) {
+            guard let rect = subtitle.rects[i]?.pointee else {
+                continue
+            }
+            if i == 0 {
+                origin = CGPoint(x: Int(rect.x), y: Int(rect.y))
+            }
+            if let text = rect.text {
+                if attributedString == nil {
+                    attributedString = NSMutableAttributedString()
+                }
+                attributedString?.append(NSAttributedString(string: String(cString: text)))
+            } else if let ass = rect.ass {
+                let scanner = Scanner(string: String(cString: ass))
+                if let group = assParse.parsePart(scanner: scanner) {
+                    parts.append(group)
+                }
+            } else if rect.type == SUBTITLE_BITMAP {
+                if let image = scale.transfer(format: AV_PIX_FMT_PAL8, width: rect.w, height: rect.h, data: Array(tuple: rect.data), linesize: Array(tuple: rect.linesize))?.cgImage() {
+                    images.append((CGRect(x: Int(rect.x), y: Int(rect.y), width: Int(rect.w), height: Int(rect.h)), image))
+                }
+            }
+        }
+        if images.count > 0 {
+            let part = SubtitlePart(0, 0, attributedString: nil)
+            if images.count > 1 {
+                origin = .zero
+            }
+            var image: UIImage?
+            // 因为字幕需要有透明度,所以不能用jpg；tif在iOS支持没有那么好，会有绿色背景； 用heic格式，展示的时候会卡主线程；所以最终用png。
+            if let data = CGImage.combine(images: images)?.data(type: .png, quality: 0.2) {
+                image = UIImage(data: data)
+            }
+            part.image = image
+            part.origin = origin
+            parts.append(part)
+        }
+        if let attributedString {
+            parts.append(SubtitlePart(0, 0, attributedString: attributedString))
+        }
+        return parts
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/ThumbnailController.swift

@@ -0,0 +1,132 @@
+//
+//  ThumbnailController.swift
+//
+//
+//  Created by kintan on 12/27/23.
+//
+
+import AVFoundation
+import Foundation
+import Libavcodec
+import Libavformat
+#if canImport(UIKit)
+import UIKit
+#endif
+public struct FFThumbnail {
+    public let image: UIImage
+    public let time: TimeInterval
+}
+
+public protocol ThumbnailControllerDelegate: AnyObject {
+    func didUpdate(thumbnails: [FFThumbnail], forFile file: URL, withProgress: Int)
+}
+
+public class ThumbnailController {
+    public weak var delegate: ThumbnailControllerDelegate?
+    private let thumbnailCount: Int
+    public init(thumbnailCount: Int = 100) {
+        self.thumbnailCount = thumbnailCount
+    }
+
+    public func generateThumbnail(for url: URL, thumbWidth: Int32 = 240) async throws -> [FFThumbnail] {
+        try await Task {
+            try getPeeks(for: url, thumbWidth: thumbWidth)
+        }.value
+    }
+
+    private func getPeeks(for url: URL, thumbWidth: Int32 = 240) throws -> [FFThumbnail] {
+        let urlString: String
+        if url.isFileURL {
+            urlString = url.path
+        } else {
+            urlString = url.absoluteString
+        }
+        var thumbnails = [FFThumbnail]()
+        var formatCtx = avformat_alloc_context()
+        defer {
+            avformat_close_input(&formatCtx)
+        }
+        var result = avformat_open_input(&formatCtx, urlString, nil, nil)
+        guard result == 0, let formatCtx else {
+            throw NSError(errorCode: .formatOpenInput, avErrorCode: result)
+        }
+        result = avformat_find_stream_info(formatCtx, nil)
+        guard result == 0 else {
+            throw NSError(errorCode: .formatFindStreamInfo, avErrorCode: result)
+        }
+        var videoStreamIndex = -1
+        for i in 0 ..< Int32(formatCtx.pointee.nb_streams) {
+            if formatCtx.pointee.streams[Int(i)]?.pointee.codecpar.pointee.codec_type == AVMEDIA_TYPE_VIDEO {
+                videoStreamIndex = Int(i)
+                break
+            }
+        }
+        guard videoStreamIndex >= 0, let videoStream = formatCtx.pointee.streams[videoStreamIndex] else {
+            throw NSError(description: "No video stream")
+        }
+
+        let videoAvgFrameRate = videoStream.pointee.avg_frame_rate
+        if videoAvgFrameRate.den == 0 || av_q2d(videoAvgFrameRate) == 0 {
+            throw NSError(description: "Avg frame rate = 0, ignore")
+        }
+        var codecContext = try videoStream.pointee.codecpar.pointee.createContext(options: nil)
+        defer {
+            avcodec_close(codecContext)
+            var codecContext: UnsafeMutablePointer<AVCodecContext>? = codecContext
+            avcodec_free_context(&codecContext)
+        }
+        let thumbHeight = thumbWidth * codecContext.pointee.height / codecContext.pointee.width
+        let reScale = VideoSwresample(dstWidth: thumbWidth, dstHeight: thumbHeight, isDovi: false)
+//        let duration = formatCtx.pointee.duration
+        // 因为是针对视频流来进行seek。所以不能直接取formatCtx的duration
+        let duration = av_rescale_q(formatCtx.pointee.duration,
+                                    AVRational(num: 1, den: AV_TIME_BASE), videoStream.pointee.time_base)
+        let interval = duration / Int64(thumbnailCount)
+        var packet = AVPacket()
+        let timeBase = Timebase(videoStream.pointee.time_base)
+        var frame = av_frame_alloc()
+        defer {
+            av_frame_free(&frame)
+        }
+        guard let frame else {
+            throw NSError(description: "can not av_frame_alloc")
+        }
+        for i in 0 ..< thumbnailCount {
+            let seek_pos = interval * Int64(i) + videoStream.pointee.start_time
+            avcodec_flush_buffers(codecContext)
+            result = av_seek_frame(formatCtx, Int32(videoStreamIndex), seek_pos, AVSEEK_FLAG_BACKWARD)
+            guard result == 0 else {
+                return thumbnails
+            }
+            avcodec_flush_buffers(codecContext)
+            while av_read_frame(formatCtx, &packet) >= 0 {
+                if packet.stream_index == Int32(videoStreamIndex) {
+                    if avcodec_send_packet(codecContext, &packet) < 0 {
+                        break
+                    }
+                    let ret = avcodec_receive_frame(codecContext, frame)
+                    if ret < 0 {
+                        if ret == -EAGAIN {
+                            continue
+                        } else {
+                            break
+                        }
+                    }
+                    let image = reScale.transfer(frame: frame.pointee)?.cgImage().map {
+                        UIImage(cgImage: $0)
+                    }
+                    let currentTimeStamp = frame.pointee.best_effort_timestamp
+                    if let image {
+                        let thumbnail = FFThumbnail(image: image, time: timeBase.cmtime(for: currentTimeStamp).seconds)
+                        thumbnails.append(thumbnail)
+                        delegate?.didUpdate(thumbnails: thumbnails, forFile: url, withProgress: i)
+                    }
+                    break
+                }
+            }
+        }
+        av_packet_unref(&packet)
+        reScale.shutdown()
+        return thumbnails
+    }
+}

KSPlayer-main/Sources/KSPlayer/MEPlayer/VideoToolboxDecode.swift

@@ -0,0 +1,216 @@
+//
+//  VideoToolboxDecode.swift
+//  KSPlayer
+//
+//  Created by kintan on 2018/3/10.
+//
+
+import FFmpegKit
+import Libavformat
+#if canImport(VideoToolbox)
+import VideoToolbox
+
+class VideoToolboxDecode: DecodeProtocol {
+    private var session: DecompressionSession {
+        didSet {
+            VTDecompressionSessionInvalidate(oldValue.decompressionSession)
+        }
+    }
+
+    private let options: KSOptions
+    private var startTime = Int64(0)
+    private var lastPosition = Int64(0)
+    private var needReconfig = false
+
+    init(options: KSOptions, session: DecompressionSession) {
+        self.options = options
+        self.session = session
+    }
+
+    func decodeFrame(from packet: Packet, completionHandler: @escaping (Result<MEFrame, Error>) -> Void) {
+        if needReconfig {
+            // 解决从后台切换到前台，解码失败的问题
+            session = DecompressionSession(assetTrack: session.assetTrack, options: options)!
+            doFlushCodec()
+            needReconfig = false
+        }
+        guard let corePacket = packet.corePacket?.pointee, let data = corePacket.data else {
+            return
+        }
+        do {
+            let sampleBuffer = try session.formatDescription.getSampleBuffer(isConvertNALSize: session.assetTrack.isConvertNALSize, data: data, size: Int(corePacket.size))
+            let flags: VTDecodeFrameFlags = [
+                ._EnableAsynchronousDecompression,
+            ]
+            var flagOut = VTDecodeInfoFlags.frameDropped
+            let timestamp = packet.timestamp
+            let packetFlags = corePacket.flags
+            let duration = corePacket.duration
+            let size = corePacket.size
+            let status = VTDecompressionSessionDecodeFrame(session.decompressionSession, sampleBuffer: sampleBuffer, flags: flags, infoFlagsOut: &flagOut) { [weak self] status, infoFlags, imageBuffer, _, _ in
+                guard let self, !infoFlags.contains(.frameDropped) else {
+                    return
+                }
+                guard status == noErr else {
+                    if status == kVTInvalidSessionErr || status == kVTVideoDecoderMalfunctionErr || status == kVTVideoDecoderBadDataErr {
+                        if packet.isKeyFrame {
+                            completionHandler(.failure(NSError(errorCode: .codecVideoReceiveFrame, avErrorCode: status)))
+                        } else {
+                            // 解决从后台切换到前台，解码失败的问题
+                            self.needReconfig = true
+                        }
+                    }
+                    return
+                }
+                let frame = VideoVTBFrame(fps: session.assetTrack.nominalFrameRate, isDovi: session.assetTrack.dovi != nil)
+                frame.corePixelBuffer = imageBuffer
+                frame.timebase = session.assetTrack.timebase
+                if packet.isKeyFrame, packetFlags & AV_PKT_FLAG_DISCARD != 0, self.lastPosition > 0 {
+                    self.startTime = self.lastPosition - timestamp
+                }
+                self.lastPosition = max(self.lastPosition, timestamp)
+                frame.position = packet.position
+                frame.timestamp = self.startTime + timestamp
+                frame.duration = duration
+                frame.size = size
+                self.lastPosition += frame.duration
+                completionHandler(.success(frame))
+            }
+            if status == noErr {
+                if !flags.contains(._EnableAsynchronousDecompression) {
+                    VTDecompressionSessionWaitForAsynchronousFrames(session.decompressionSession)
+                }
+            } else if status == kVTInvalidSessionErr || status == kVTVideoDecoderMalfunctionErr || status == kVTVideoDecoderBadDataErr {
+                if packet.isKeyFrame {
+                    throw NSError(errorCode: .codecVideoReceiveFrame, avErrorCode: status)
+                } else {
+                    // 解决从后台切换到前台，解码失败的问题
+                    needReconfig = true
+                }
+            }
+        } catch {
+            completionHandler(.failure(error))
+        }
+    }
+
+    func doFlushCodec() {
+        lastPosition = 0
+        startTime = 0
+    }
+
+    func shutdown() {
+        VTDecompressionSessionInvalidate(session.decompressionSession)
+    }
+
+    func decode() {
+        lastPosition = 0
+        startTime = 0
+    }
+}
+
+class DecompressionSession {
+    fileprivate let formatDescription: CMFormatDescription
+    fileprivate let decompressionSession: VTDecompressionSession
+    fileprivate var assetTrack: FFmpegAssetTrack
+    init?(assetTrack: FFmpegAssetTrack, options: KSOptions) {
+        self.assetTrack = assetTrack
+        guard let pixelFormatType = assetTrack.pixelFormatType, let formatDescription = assetTrack.formatDescription else {
+            return nil
+        }
+        self.formatDescription = formatDescription
+        #if os(macOS)
+        VTRegisterProfessionalVideoWorkflowVideoDecoders()
+        if #available(macOS 11.0, *) {
+            VTRegisterSupplementalVideoDecoderIfAvailable(formatDescription.mediaSubType.rawValue)
+        }
+        #endif
+//        VTDecompressionSessionCanAcceptFormatDescription(<#T##session: VTDecompressionSession##VTDecompressionSession#>, formatDescription: <#T##CMFormatDescription#>)
+        let attributes: NSMutableDictionary = [
+            kCVPixelBufferPixelFormatTypeKey: pixelFormatType,
+            kCVPixelBufferMetalCompatibilityKey: true,
+            kCVPixelBufferWidthKey: assetTrack.codecpar.width,
+            kCVPixelBufferHeightKey: assetTrack.codecpar.height,
+            kCVPixelBufferIOSurfacePropertiesKey: NSDictionary(),
+        ]
+        var session: VTDecompressionSession?
+        // swiftlint:disable line_length
+        let status = VTDecompressionSessionCreate(allocator: kCFAllocatorDefault, formatDescription: formatDescription, decoderSpecification: CMFormatDescriptionGetExtensions(formatDescription), imageBufferAttributes: attributes, outputCallback: nil, decompressionSessionOut: &session)
+        // swiftlint:enable line_length
+        guard status == noErr, let decompressionSession = session else {
+            return nil
+        }
+        if #available(iOS 14.0, tvOS 14.0, macOS 11.0, *) {
+            VTSessionSetProperty(decompressionSession, key: kVTDecompressionPropertyKey_PropagatePerFrameHDRDisplayMetadata,
+                                 value: kCFBooleanTrue)
+        }
+        if let destinationDynamicRange = options.availableDynamicRange(nil) {
+            let pixelTransferProperties = [kVTPixelTransferPropertyKey_DestinationColorPrimaries: destinationDynamicRange.colorPrimaries,
+                                           kVTPixelTransferPropertyKey_DestinationTransferFunction: destinationDynamicRange.transferFunction,
+                                           kVTPixelTransferPropertyKey_DestinationYCbCrMatrix: destinationDynamicRange.yCbCrMatrix]
+            VTSessionSetProperty(decompressionSession,
+                                 key: kVTDecompressionPropertyKey_PixelTransferProperties,
+                                 value: pixelTransferProperties as CFDictionary)
+        }
+        self.decompressionSession = decompressionSession
+    }
+}
+#endif
+
+extension CMFormatDescription {
+    fileprivate func getSampleBuffer(isConvertNALSize: Bool, data: UnsafeMutablePointer<UInt8>, size: Int) throws -> CMSampleBuffer {
+        if isConvertNALSize {
+            var ioContext: UnsafeMutablePointer<AVIOContext>?
+            let status = avio_open_dyn_buf(&ioContext)
+            if status == 0 {
+                var nalSize: UInt32 = 0
+                let end = data + size
+                var nalStart = data
+                while nalStart < end {
+                    nalSize = UInt32(nalStart[0]) << 16 | UInt32(nalStart[1]) << 8 | UInt32(nalStart[2])
+                    avio_wb32(ioContext, nalSize)
+                    nalStart += 3
+                    avio_write(ioContext, nalStart, Int32(nalSize))
+                    nalStart += Int(nalSize)
+                }
+                var demuxBuffer: UnsafeMutablePointer<UInt8>?
+                let demuxSze = avio_close_dyn_buf(ioContext, &demuxBuffer)
+                return try createSampleBuffer(data: demuxBuffer, size: Int(demuxSze))
+            } else {
+                throw NSError(errorCode: .codecVideoReceiveFrame, avErrorCode: status)
+            }
+        } else {
+            return try createSampleBuffer(data: data, size: size)
+        }
+    }
+
+    private func createSampleBuffer(data: UnsafeMutablePointer<UInt8>?, size: Int) throws -> CMSampleBuffer {
+        var blockBuffer: CMBlockBuffer?
+        var sampleBuffer: CMSampleBuffer?
+        // swiftlint:disable line_length
+        var status = CMBlockBufferCreateWithMemoryBlock(allocator: kCFAllocatorDefault, memoryBlock: data, blockLength: size, blockAllocator: kCFAllocatorNull, customBlockSource: nil, offsetToData: 0, dataLength: size, flags: 0, blockBufferOut: &blockBuffer)
+        if status == noErr {
+            status = CMSampleBufferCreate(allocator: kCFAllocatorDefault, dataBuffer: blockBuffer, dataReady: true, makeDataReadyCallback: nil, refcon: nil, formatDescription: self, sampleCount: 1, sampleTimingEntryCount: 0, sampleTimingArray: nil, sampleSizeEntryCount: 0, sampleSizeArray: nil, sampleBufferOut: &sampleBuffer)
+            if let sampleBuffer {
+                return sampleBuffer
+            }
+        }
+        throw NSError(errorCode: .codecVideoReceiveFrame, avErrorCode: status)
+        // swiftlint:enable line_length
+    }
+}
+
+extension CMVideoCodecType {
+    var avc: String {
+        switch self {
+        case kCMVideoCodecType_MPEG4Video:
+            return "esds"
+        case kCMVideoCodecType_H264:
+            return "avcC"
+        case kCMVideoCodecType_HEVC:
+            return "hvcC"
+        case kCMVideoCodecType_VP9:
+            return "vpcC"
+        default: return "avcC"
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/Metal/DisplayModel.swift

@@ -0,0 +1,299 @@
+//
+//  DisplayModel.swift
+//  KSPlayer-iOS
+//
+//  Created by kintan on 2020/1/11.
+//
+
+import Foundation
+import Metal
+import simd
+#if canImport(UIKit)
+import UIKit
+#endif
+
+extension DisplayEnum {
+    private static var planeDisplay = PlaneDisplayModel()
+    private static var vrDiaplay = VRDisplayModel()
+    private static var vrBoxDiaplay = VRBoxDisplayModel()
+
+    func set(encoder: MTLRenderCommandEncoder) {
+        switch self {
+        case .plane:
+            DisplayEnum.planeDisplay.set(encoder: encoder)
+        case .vr:
+            DisplayEnum.vrDiaplay.set(encoder: encoder)
+        case .vrBox:
+            DisplayEnum.vrBoxDiaplay.set(encoder: encoder)
+        }
+    }
+
+    func pipeline(planeCount: Int, bitDepth: Int32) -> MTLRenderPipelineState {
+        switch self {
+        case .plane:
+            return DisplayEnum.planeDisplay.pipeline(planeCount: planeCount, bitDepth: bitDepth)
+        case .vr:
+            return DisplayEnum.vrDiaplay.pipeline(planeCount: planeCount, bitDepth: bitDepth)
+        case .vrBox:
+            return DisplayEnum.vrBoxDiaplay.pipeline(planeCount: planeCount, bitDepth: bitDepth)
+        }
+    }
+
+    func touchesMoved(touch: UITouch) {
+        switch self {
+        case .vr:
+            DisplayEnum.vrDiaplay.touchesMoved(touch: touch)
+        case .vrBox:
+            DisplayEnum.vrBoxDiaplay.touchesMoved(touch: touch)
+        default:
+            break
+        }
+    }
+}
+
+private class PlaneDisplayModel {
+    private lazy var yuv = MetalRender.makePipelineState(fragmentFunction: "displayYUVTexture")
+    private lazy var yuvp010LE = MetalRender.makePipelineState(fragmentFunction: "displayYUVTexture", bitDepth: 10)
+    private lazy var nv12 = MetalRender.makePipelineState(fragmentFunction: "displayNV12Texture")
+    private lazy var p010LE = MetalRender.makePipelineState(fragmentFunction: "displayNV12Texture", bitDepth: 10)
+    private lazy var bgra = MetalRender.makePipelineState(fragmentFunction: "displayTexture")
+    let indexCount: Int
+    let indexType = MTLIndexType.uint16
+    let primitiveType = MTLPrimitiveType.triangleStrip
+    let indexBuffer: MTLBuffer
+    let posBuffer: MTLBuffer?
+    let uvBuffer: MTLBuffer?
+
+    fileprivate init() {
+        let (indices, positions, uvs) = PlaneDisplayModel.genSphere()
+        let device = MetalRender.device
+        indexCount = indices.count
+        indexBuffer = device.makeBuffer(bytes: indices, length: MemoryLayout<UInt16>.size * indexCount)!
+        posBuffer = device.makeBuffer(bytes: positions, length: MemoryLayout<simd_float4>.size * positions.count)
+        uvBuffer = device.makeBuffer(bytes: uvs, length: MemoryLayout<simd_float2>.size * uvs.count)
+    }
+
+    private static func genSphere() -> ([UInt16], [simd_float4], [simd_float2]) {
+        let indices: [UInt16] = [0, 1, 2, 3]
+        let positions: [simd_float4] = [
+            [-1.0, -1.0, 0.0, 1.0],
+            [-1.0, 1.0, 0.0, 1.0],
+            [1.0, -1.0, 0.0, 1.0],
+            [1.0, 1.0, 0.0, 1.0],
+        ]
+        let uvs: [simd_float2] = [
+            [0.0, 1.0],
+            [0.0, 0.0],
+            [1.0, 1.0],
+            [1.0, 0.0],
+        ]
+        return (indices, positions, uvs)
+    }
+
+    func set(encoder: MTLRenderCommandEncoder) {
+        encoder.setFrontFacing(.clockwise)
+        encoder.setVertexBuffer(posBuffer, offset: 0, index: 0)
+        encoder.setVertexBuffer(uvBuffer, offset: 0, index: 1)
+        encoder.drawIndexedPrimitives(type: primitiveType, indexCount: indexCount, indexType: indexType, indexBuffer: indexBuffer, indexBufferOffset: 0)
+    }
+
+    func pipeline(planeCount: Int, bitDepth: Int32) -> MTLRenderPipelineState {
+        switch planeCount {
+        case 3:
+            if bitDepth == 10 {
+                return yuvp010LE
+            } else {
+                return yuv
+            }
+        case 2:
+            if bitDepth == 10 {
+                return p010LE
+            } else {
+                return nv12
+            }
+        case 1:
+            return bgra
+        default:
+            return bgra
+        }
+    }
+}
+
+@MainActor
+private class SphereDisplayModel {
+    private lazy var yuv = MetalRender.makePipelineState(fragmentFunction: "displayYUVTexture", isSphere: true)
+    private lazy var yuvp010LE = MetalRender.makePipelineState(fragmentFunction: "displayYUVTexture", isSphere: true, bitDepth: 10)
+    private lazy var nv12 = MetalRender.makePipelineState(fragmentFunction: "displayNV12Texture", isSphere: true)
+    private lazy var p010LE = MetalRender.makePipelineState(fragmentFunction: "displayNV12Texture", isSphere: true, bitDepth: 10)
+    private lazy var bgra = MetalRender.makePipelineState(fragmentFunction: "displayTexture", isSphere: true)
+    private var fingerRotationX = Float(0)
+    private var fingerRotationY = Float(0)
+    fileprivate var modelViewMatrix = matrix_identity_float4x4
+    let indexCount: Int
+    let indexType = MTLIndexType.uint16
+    let primitiveType = MTLPrimitiveType.triangle
+    let indexBuffer: MTLBuffer
+    let posBuffer: MTLBuffer?
+    let uvBuffer: MTLBuffer?
+    @MainActor
+    fileprivate init() {
+        let (indices, positions, uvs) = SphereDisplayModel.genSphere()
+        let device = MetalRender.device
+        indexCount = indices.count
+        indexBuffer = device.makeBuffer(bytes: indices, length: MemoryLayout<UInt16>.size * indexCount)!
+        posBuffer = device.makeBuffer(bytes: positions, length: MemoryLayout<simd_float4>.size * positions.count)
+        uvBuffer = device.makeBuffer(bytes: uvs, length: MemoryLayout<simd_float2>.size * uvs.count)
+        #if canImport(UIKit) && canImport(CoreMotion)
+        if KSOptions.enableSensor {
+            MotionSensor.shared.start()
+        }
+        #endif
+    }
+
+    func set(encoder: MTLRenderCommandEncoder) {
+        encoder.setFrontFacing(.clockwise)
+        encoder.setVertexBuffer(posBuffer, offset: 0, index: 0)
+        encoder.setVertexBuffer(uvBuffer, offset: 0, index: 1)
+        #if canImport(UIKit) && canImport(CoreMotion)
+        if KSOptions.enableSensor, let matrix = MotionSensor.shared.matrix() {
+            modelViewMatrix = matrix
+        }
+        #endif
+    }
+
+    @MainActor
+    func touchesMoved(touch: UITouch) {
+        #if canImport(UIKit)
+        let view = touch.view
+        #else
+        let view: UIView? = nil
+        #endif
+        var distX = Float(touch.location(in: view).x - touch.previousLocation(in: view).x)
+        var distY = Float(touch.location(in: view).y - touch.previousLocation(in: view).y)
+        distX *= 0.005
+        distY *= 0.005
+        fingerRotationX -= distY * 60 / 100
+        fingerRotationY -= distX * 60 / 100
+        modelViewMatrix = matrix_identity_float4x4.rotateX(radians: fingerRotationX).rotateY(radians: fingerRotationY)
+    }
+
+    func reset() {
+        fingerRotationX = 0
+        fingerRotationY = 0
+        modelViewMatrix = matrix_identity_float4x4
+    }
+
+    private static func genSphere() -> ([UInt16], [simd_float4], [simd_float2]) {
+        let slicesCount = UInt16(200)
+        let parallelsCount = slicesCount / 2
+        let indicesCount = Int(slicesCount) * Int(parallelsCount) * 6
+        var indices = [UInt16](repeating: 0, count: indicesCount)
+        var positions = [simd_float4]()
+        var uvs = [simd_float2]()
+        var runCount = 0
+        let radius = Float(1.0)
+        let step = (2.0 * Float.pi) / Float(slicesCount)
+        var i = UInt16(0)
+        while i <= parallelsCount {
+            var j = UInt16(0)
+            while j <= slicesCount {
+                let vertex0 = radius * sinf(step * Float(i)) * cosf(step * Float(j))
+                let vertex1 = radius * cosf(step * Float(i))
+                let vertex2 = radius * sinf(step * Float(i)) * sinf(step * Float(j))
+                let vertex3 = Float(1.0)
+                let vertex4 = Float(j) / Float(slicesCount)
+                let vertex5 = Float(i) / Float(parallelsCount)
+                positions.append([vertex0, vertex1, vertex2, vertex3])
+                uvs.append([vertex4, vertex5])
+                if i < parallelsCount, j < slicesCount {
+                    indices[runCount] = i * (slicesCount + 1) + j
+                    runCount += 1
+                    indices[runCount] = UInt16((i + 1) * (slicesCount + 1) + j)
+                    runCount += 1
+                    indices[runCount] = UInt16((i + 1) * (slicesCount + 1) + (j + 1))
+                    runCount += 1
+                    indices[runCount] = UInt16(i * (slicesCount + 1) + j)
+                    runCount += 1
+                    indices[runCount] = UInt16((i + 1) * (slicesCount + 1) + (j + 1))
+                    runCount += 1
+                    indices[runCount] = UInt16(i * (slicesCount + 1) + (j + 1))
+                    runCount += 1
+                }
+                j += 1
+            }
+            i += 1
+        }
+        return (indices, positions, uvs)
+    }
+
+    func pipeline(planeCount: Int, bitDepth: Int32) -> MTLRenderPipelineState {
+        switch planeCount {
+        case 3:
+            if bitDepth == 10 {
+                return yuvp010LE
+            } else {
+                return yuv
+            }
+        case 2:
+            if bitDepth == 10 {
+                return p010LE
+            } else {
+                return nv12
+            }
+        case 1:
+            return bgra
+        default:
+            return bgra
+        }
+    }
+}
+
+private class VRDisplayModel: SphereDisplayModel {
+    private let modelViewProjectionMatrix: simd_float4x4
+
+    override required init() {
+        let size = KSOptions.sceneSize
+        let aspect = Float(size.width / size.height)
+        let projectionMatrix = simd_float4x4(perspective: Float.pi / 3, aspect: aspect, nearZ: 0.1, farZ: 400.0)
+        let viewMatrix = simd_float4x4(lookAt: SIMD3<Float>.zero, center: [0, 0, -1000], up: [0, 1, 0])
+        modelViewProjectionMatrix = projectionMatrix * viewMatrix
+        super.init()
+    }
+
+    override func set(encoder: MTLRenderCommandEncoder) {
+        super.set(encoder: encoder)
+        var matrix = modelViewProjectionMatrix * modelViewMatrix
+        let matrixBuffer = MetalRender.device.makeBuffer(bytes: &matrix, length: MemoryLayout<simd_float4x4>.size)
+        encoder.setVertexBuffer(matrixBuffer, offset: 0, index: 2)
+        encoder.drawIndexedPrimitives(type: primitiveType, indexCount: indexCount, indexType: indexType, indexBuffer: indexBuffer, indexBufferOffset: 0)
+    }
+}
+
+private class VRBoxDisplayModel: SphereDisplayModel {
+    private let modelViewProjectionMatrixLeft: simd_float4x4
+    private let modelViewProjectionMatrixRight: simd_float4x4
+    override required init() {
+        let size = KSOptions.sceneSize
+        let aspect = Float(size.width / size.height) / 2
+        let viewMatrixLeft = simd_float4x4(lookAt: [-0.012, 0, 0], center: [0, 0, -1000], up: [0, 1, 0])
+        let viewMatrixRight = simd_float4x4(lookAt: [0.012, 0, 0], center: [0, 0, -1000], up: [0, 1, 0])
+        let projectionMatrix = simd_float4x4(perspective: Float.pi / 3, aspect: aspect, nearZ: 0.1, farZ: 400.0)
+        modelViewProjectionMatrixLeft = projectionMatrix * viewMatrixLeft
+        modelViewProjectionMatrixRight = projectionMatrix * viewMatrixRight
+        super.init()
+    }
+
+    override func set(encoder: MTLRenderCommandEncoder) {
+        super.set(encoder: encoder)
+        let layerSize = KSOptions.sceneSize
+        let width = Double(layerSize.width / 2)
+        [(modelViewProjectionMatrixLeft, MTLViewport(originX: 0, originY: 0, width: width, height: Double(layerSize.height), znear: 0, zfar: 0)),
+         (modelViewProjectionMatrixRight, MTLViewport(originX: width, originY: 0, width: width, height: Double(layerSize.height), znear: 0, zfar: 0))].forEach { modelViewProjectionMatrix, viewport in
+            encoder.setViewport(viewport)
+            var matrix = modelViewProjectionMatrix * modelViewMatrix
+            let matrixBuffer = MetalRender.device.makeBuffer(bytes: &matrix, length: MemoryLayout<simd_float4x4>.size)
+            encoder.setVertexBuffer(matrixBuffer, offset: 0, index: 2)
+            encoder.drawIndexedPrimitives(type: primitiveType, indexCount: indexCount, indexType: indexType, indexBuffer: indexBuffer, indexBufferOffset: 0)
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/Metal/MetalRender.swift

@@ -0,0 +1,214 @@
+//
+//  MetalRender.swift
+//  KSPlayer-iOS
+//
+//  Created by kintan on 2020/1/11.
+//
+import Accelerate
+import CoreVideo
+import Foundation
+import Metal
+import QuartzCore
+import simd
+
+class MetalRender {
+    static let device = MTLCreateSystemDefaultDevice()!
+    static let library: MTLLibrary = {
+        var library: MTLLibrary!
+        library = device.makeDefaultLibrary()
+        if library == nil {
+            library = try? device.makeDefaultLibrary(bundle: .module)
+        }
+        return library
+    }()
+
+    private let renderPassDescriptor = MTLRenderPassDescriptor()
+    private let commandQueue = MetalRender.device.makeCommandQueue()
+    private lazy var samplerState: MTLSamplerState? = {
+        let samplerDescriptor = MTLSamplerDescriptor()
+        samplerDescriptor.minFilter = .linear
+        samplerDescriptor.magFilter = .linear
+        return MetalRender.device.makeSamplerState(descriptor: samplerDescriptor)
+    }()
+
+    private lazy var colorConversion601VideoRangeMatrixBuffer: MTLBuffer? = kvImage_YpCbCrToARGBMatrix_ITU_R_601_4.pointee.videoRange.buffer
+
+    private lazy var colorConversion601FullRangeMatrixBuffer: MTLBuffer? = kvImage_YpCbCrToARGBMatrix_ITU_R_601_4.pointee.buffer
+
+    private lazy var colorConversion709VideoRangeMatrixBuffer: MTLBuffer? = kvImage_YpCbCrToARGBMatrix_ITU_R_709_2.pointee.videoRange.buffer
+
+    private lazy var colorConversion709FullRangeMatrixBuffer: MTLBuffer? = kvImage_YpCbCrToARGBMatrix_ITU_R_709_2.pointee.buffer
+
+    private lazy var colorConversionSMPTE240MVideoRangeMatrixBuffer: MTLBuffer? = kvImage_YpCbCrToARGBMatrix_SMPTE_240M_1995.videoRange.buffer
+
+    private lazy var colorConversionSMPTE240MFullRangeMatrixBuffer: MTLBuffer? = kvImage_YpCbCrToARGBMatrix_SMPTE_240M_1995.buffer
+
+    private lazy var colorConversion2020VideoRangeMatrixBuffer: MTLBuffer? = kvImage_YpCbCrToARGBMatrix_ITU_R_2020.videoRange.buffer
+
+    private lazy var colorConversion2020FullRangeMatrixBuffer: MTLBuffer? = kvImage_YpCbCrToARGBMatrix_ITU_R_2020.buffer
+
+    private lazy var colorOffsetVideoRangeMatrixBuffer: MTLBuffer? = {
+        var firstColumn = SIMD3<Float>(-16.0 / 255.0, -128.0 / 255.0, -128.0 / 255.0)
+        let buffer = MetalRender.device.makeBuffer(bytes: &firstColumn, length: MemoryLayout<SIMD3<Float>>.size)
+        buffer?.label = "colorOffset"
+        return buffer
+    }()
+
+    private lazy var colorOffsetFullRangeMatrixBuffer: MTLBuffer? = {
+        var firstColumn = SIMD3<Float>(0, -128.0 / 255.0, -128.0 / 255.0)
+        let buffer = MetalRender.device.makeBuffer(bytes: &firstColumn, length: MemoryLayout<SIMD3<Float>>.size)
+        buffer?.label = "colorOffset"
+        return buffer
+    }()
+
+    private lazy var leftShiftMatrixBuffer: MTLBuffer? = {
+        var firstColumn = SIMD3<UInt8>(1, 1, 1)
+        let buffer = MetalRender.device.makeBuffer(bytes: &firstColumn, length: MemoryLayout<SIMD3<UInt8>>.size)
+        buffer?.label = "leftShit"
+        return buffer
+    }()
+
+    private lazy var leftShiftSixMatrixBuffer: MTLBuffer? = {
+        var firstColumn = SIMD3<UInt8>(64, 64, 64)
+        let buffer = MetalRender.device.makeBuffer(bytes: &firstColumn, length: MemoryLayout<SIMD3<UInt8>>.size)
+        buffer?.label = "leftShit"
+        return buffer
+    }()
+
+    func clear(drawable: MTLDrawable) {
+        renderPassDescriptor.colorAttachments[0].clearColor = MTLClearColor(red: 0, green: 0, blue: 0, alpha: 0)
+        renderPassDescriptor.colorAttachments[0].loadAction = .clear
+        guard let commandBuffer = commandQueue?.makeCommandBuffer(),
+              let encoder = commandBuffer.makeRenderCommandEncoder(descriptor: renderPassDescriptor)
+        else {
+            return
+        }
+        encoder.endEncoding()
+        commandBuffer.present(drawable)
+        commandBuffer.commit()
+        commandBuffer.waitUntilCompleted()
+    }
+
+    @MainActor
+    func draw(pixelBuffer: PixelBufferProtocol, display: DisplayEnum = .plane, drawable: CAMetalDrawable) {
+        let inputTextures = pixelBuffer.textures()
+        renderPassDescriptor.colorAttachments[0].texture = drawable.texture
+        guard !inputTextures.isEmpty, let commandBuffer = commandQueue?.makeCommandBuffer(), let encoder = commandBuffer.makeRenderCommandEncoder(descriptor: renderPassDescriptor) else {
+            return
+        }
+        encoder.pushDebugGroup("RenderFrame")
+        let state = display.pipeline(planeCount: pixelBuffer.planeCount, bitDepth: pixelBuffer.bitDepth)
+        encoder.setRenderPipelineState(state)
+        encoder.setFragmentSamplerState(samplerState, index: 0)
+        for (index, texture) in inputTextures.enumerated() {
+            texture.label = "texture\(index)"
+            encoder.setFragmentTexture(texture, index: index)
+        }
+        setFragmentBuffer(pixelBuffer: pixelBuffer, encoder: encoder)
+        display.set(encoder: encoder)
+        encoder.popDebugGroup()
+        encoder.endEncoding()
+        commandBuffer.present(drawable)
+        commandBuffer.commit()
+        commandBuffer.waitUntilCompleted()
+    }
+
+    private func setFragmentBuffer(pixelBuffer: PixelBufferProtocol, encoder: MTLRenderCommandEncoder) {
+        if pixelBuffer.planeCount > 1 {
+            let buffer: MTLBuffer?
+            let yCbCrMatrix = pixelBuffer.yCbCrMatrix
+            let isFullRangeVideo = pixelBuffer.isFullRangeVideo
+            if yCbCrMatrix == kCVImageBufferYCbCrMatrix_ITU_R_709_2 {
+                buffer = isFullRangeVideo ? colorConversion709FullRangeMatrixBuffer : colorConversion709VideoRangeMatrixBuffer
+            } else if yCbCrMatrix == kCVImageBufferYCbCrMatrix_SMPTE_240M_1995 {
+                buffer = isFullRangeVideo ? colorConversionSMPTE240MFullRangeMatrixBuffer : colorConversionSMPTE240MVideoRangeMatrixBuffer
+            } else if yCbCrMatrix == kCVImageBufferYCbCrMatrix_ITU_R_2020 {
+                buffer = isFullRangeVideo ? colorConversion2020FullRangeMatrixBuffer : colorConversion2020VideoRangeMatrixBuffer
+            } else {
+                buffer = isFullRangeVideo ? colorConversion601FullRangeMatrixBuffer : colorConversion601VideoRangeMatrixBuffer
+            }
+            encoder.setFragmentBuffer(buffer, offset: 0, index: 0)
+            let colorOffset = isFullRangeVideo ? colorOffsetFullRangeMatrixBuffer : colorOffsetVideoRangeMatrixBuffer
+            encoder.setFragmentBuffer(colorOffset, offset: 0, index: 1)
+            let leftShift = pixelBuffer.leftShift == 0 ? leftShiftMatrixBuffer : leftShiftSixMatrixBuffer
+            encoder.setFragmentBuffer(leftShift, offset: 0, index: 2)
+        }
+    }
+
+    static func makePipelineState(fragmentFunction: String, isSphere: Bool = false, bitDepth: Int32 = 8) -> MTLRenderPipelineState {
+        let descriptor = MTLRenderPipelineDescriptor()
+        descriptor.colorAttachments[0].pixelFormat = KSOptions.colorPixelFormat(bitDepth: bitDepth)
+        descriptor.vertexFunction = library.makeFunction(name: isSphere ? "mapSphereTexture" : "mapTexture")
+        descriptor.fragmentFunction = library.makeFunction(name: fragmentFunction)
+        let vertexDescriptor = MTLVertexDescriptor()
+        vertexDescriptor.attributes[0].format = .float4
+        vertexDescriptor.attributes[0].bufferIndex = 0
+        vertexDescriptor.attributes[0].offset = 0
+        vertexDescriptor.attributes[1].format = .float2
+        vertexDescriptor.attributes[1].bufferIndex = 1
+        vertexDescriptor.attributes[1].offset = 0
+        vertexDescriptor.layouts[0].stride = MemoryLayout<simd_float4>.stride
+        vertexDescriptor.layouts[1].stride = MemoryLayout<simd_float2>.stride
+        descriptor.vertexDescriptor = vertexDescriptor
+        // swiftlint:disable force_try
+        return try! library.device.makeRenderPipelineState(descriptor: descriptor)
+        // swftlint:enable force_try
+    }
+
+    static func texture(pixelBuffer: CVPixelBuffer) -> [MTLTexture] {
+        guard let iosurface = CVPixelBufferGetIOSurface(pixelBuffer)?.takeUnretainedValue() else {
+            return []
+        }
+        let formats = KSOptions.pixelFormat(planeCount: pixelBuffer.planeCount, bitDepth: pixelBuffer.bitDepth)
+        return (0 ..< pixelBuffer.planeCount).compactMap { index in
+            let width = pixelBuffer.widthOfPlane(at: index)
+            let height = pixelBuffer.heightOfPlane(at: index)
+            let descriptor = MTLTextureDescriptor.texture2DDescriptor(pixelFormat: formats[index], width: width, height: height, mipmapped: false)
+            return device.makeTexture(descriptor: descriptor, iosurface: iosurface, plane: index)
+        }
+    }
+
+    static func textures(formats: [MTLPixelFormat], widths: [Int], heights: [Int], buffers: [MTLBuffer?], lineSizes: [Int]) -> [MTLTexture] {
+        (0 ..< formats.count).compactMap { i in
+            guard let buffer = buffers[i] else {
+                return nil
+            }
+            let descriptor = MTLTextureDescriptor.texture2DDescriptor(pixelFormat: formats[i], width: widths[i], height: heights[i], mipmapped: false)
+            descriptor.storageMode = buffer.storageMode
+            return buffer.makeTexture(descriptor: descriptor, offset: 0, bytesPerRow: lineSizes[i])
+        }
+    }
+}
+
+// swiftlint:disable identifier_name
+// private let kvImage_YpCbCrToARGBMatrix_ITU_R_601_4 = vImage_YpCbCrToARGBMatrix(Kr: 0.299, Kb: 0.114)
+// private let kvImage_YpCbCrToARGBMatrix_ITU_R_709_2 = vImage_YpCbCrToARGBMatrix(Kr: 0.2126, Kb: 0.0722)
+private let kvImage_YpCbCrToARGBMatrix_SMPTE_240M_1995 = vImage_YpCbCrToARGBMatrix(Kr: 0.212, Kb: 0.087)
+private let kvImage_YpCbCrToARGBMatrix_ITU_R_2020 = vImage_YpCbCrToARGBMatrix(Kr: 0.2627, Kb: 0.0593)
+extension vImage_YpCbCrToARGBMatrix {
+    /**
+     https://en.wikipedia.org/wiki/YCbCr
+     @textblock
+            | R |    | 1    0                                                            2-2Kr |   | Y' |
+            | G | = | 1   -Kb * (2 - 2 * Kb) / Kg   -Kr * (2 - 2 * Kr) / Kg |  | Cb |
+            | B |    | 1   2 - 2 * Kb                                                     0  |  | Cr |
+     @/textblock
+     */
+    init(Kr: Float, Kb: Float) {
+        let Kg = 1 - Kr - Kb
+        self.init(Yp: 1, Cr_R: 2 - 2 * Kr, Cr_G: -Kr * (2 - 2 * Kr) / Kg, Cb_G: -Kb * (2 - 2 * Kb) / Kg, Cb_B: 2 - 2 * Kb)
+    }
+
+    var videoRange: vImage_YpCbCrToARGBMatrix {
+        vImage_YpCbCrToARGBMatrix(Yp: 255 / 219 * Yp, Cr_R: 255 / 224 * Cr_R, Cr_G: 255 / 224 * Cr_G, Cb_G: 255 / 224 * Cb_G, Cb_B: 255 / 224 * Cb_B)
+    }
+
+    var buffer: MTLBuffer? {
+        var matrix = simd_float3x3([Yp, Yp, Yp], [0.0, Cb_G, Cb_B], [Cr_R, Cr_G, 0.0])
+        let buffer = MetalRender.device.makeBuffer(bytes: &matrix, length: MemoryLayout<simd_float3x3>.size)
+        buffer?.label = "colorConversionMatrix"
+        return buffer
+    }
+}
+
+// swiftlint:enable identifier_name

KSPlayer-main/Sources/KSPlayer/Metal/MotionSensor.swift

@@ -0,0 +1,89 @@
+//
+//  MotionSensor.swift
+//  KSPlayer-iOS
+//
+//  Created by kintan on 2020/1/13.
+//
+
+#if canImport(UIKit) && canImport(CoreMotion)
+import CoreMotion
+import Foundation
+import simd
+import UIKit
+
+@MainActor
+final class MotionSensor {
+    static let shared = MotionSensor()
+    private let manager = CMMotionManager()
+    private let worldToInertialReferenceFrame = simd_float4x4(euler: -90, y: 0, z: 90)
+    private var deviceToDisplay = simd_float4x4.identity
+    private let defaultRadiansY: Float
+    private var orientation = UIInterfaceOrientation.unknown {
+        didSet {
+            if oldValue != orientation {
+                switch orientation {
+                case .portraitUpsideDown:
+                    deviceToDisplay = simd_float4x4(euler: 0, y: 0, z: 180)
+                case .landscapeRight:
+                    deviceToDisplay = simd_float4x4(euler: 0, y: 0, z: -90)
+                case .landscapeLeft:
+                    deviceToDisplay = simd_float4x4(euler: 0, y: 0, z: 90)
+                default:
+                    deviceToDisplay = simd_float4x4.identity
+                }
+            }
+        }
+    }
+
+    private init() {
+        switch KSOptions.windowScene?.interfaceOrientation {
+        case .landscapeRight:
+            defaultRadiansY = -.pi / 2
+        case .landscapeLeft:
+            defaultRadiansY = .pi / 2
+        default:
+            defaultRadiansY = 0
+        }
+    }
+
+    func ready() -> Bool {
+        manager.isDeviceMotionAvailable ? manager.isDeviceMotionActive : false
+    }
+
+    func start() {
+        if manager.isDeviceMotionAvailable, !manager.isDeviceMotionActive {
+            manager.deviceMotionUpdateInterval = 1 / 60
+            manager.startDeviceMotionUpdates()
+        }
+    }
+
+    func stop() {
+        manager.stopDeviceMotionUpdates()
+    }
+
+    func matrix() -> simd_float4x4? {
+        if var matrix = manager.deviceMotion.flatMap(simd_float4x4.init(motion:)) {
+            matrix = matrix.transpose
+            matrix *= worldToInertialReferenceFrame
+            orientation = KSOptions.windowScene?.interfaceOrientation ?? .portrait
+            matrix = deviceToDisplay * matrix
+            matrix = matrix.rotateY(radians: defaultRadiansY)
+            return matrix
+        }
+        return nil
+    }
+}
+
+public extension simd_float4x4 {
+    init(motion: CMDeviceMotion) {
+        self.init(rotation: motion.attitude.rotationMatrix)
+    }
+
+    init(rotation: CMRotationMatrix) {
+        self.init(SIMD4<Float>(Float(rotation.m11), Float(rotation.m12), Float(rotation.m13), 0.0),
+                  SIMD4<Float>(Float(rotation.m21), Float(rotation.m22), Float(rotation.m23), 0.0),
+                  SIMD4<Float>(Float(rotation.m31), Float(rotation.m32), Float(rotation.m33), -1),
+                  SIMD4<Float>(0, 0, 0, 1))
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Metal/PixelBufferProtocol.swift

@@ -0,0 +1,283 @@
+//
+//  PixelBufferProtocol.swift
+//  KSPlayer-iOS
+//
+//  Created by kintan on 2019/12/31.
+//
+
+import AVFoundation
+import CoreVideo
+import Foundation
+import Libavutil
+import simd
+import VideoToolbox
+#if canImport(UIKit)
+import UIKit
+#endif
+
+public protocol PixelBufferProtocol: AnyObject {
+    var width: Int { get }
+    var height: Int { get }
+    var bitDepth: Int32 { get }
+    var leftShift: UInt8 { get }
+    var planeCount: Int { get }
+    var formatDescription: CMVideoFormatDescription? { get }
+    var aspectRatio: CGSize { get set }
+    var yCbCrMatrix: CFString? { get set }
+    var colorPrimaries: CFString? { get set }
+    var transferFunction: CFString? { get set }
+    var colorspace: CGColorSpace? { get set }
+    var cvPixelBuffer: CVPixelBuffer? { get }
+    var isFullRangeVideo: Bool { get }
+    func cgImage() -> CGImage?
+    func textures() -> [MTLTexture]
+    func widthOfPlane(at planeIndex: Int) -> Int
+    func heightOfPlane(at planeIndex: Int) -> Int
+    func matche(formatDescription: CMVideoFormatDescription) -> Bool
+}
+
+extension PixelBufferProtocol {
+    var size: CGSize { CGSize(width: width, height: height) }
+}
+
+extension CVPixelBuffer: PixelBufferProtocol {
+    public var leftShift: UInt8 { 0 }
+    public var cvPixelBuffer: CVPixelBuffer? { self }
+    public var width: Int { CVPixelBufferGetWidth(self) }
+    public var height: Int { CVPixelBufferGetHeight(self) }
+    public var aspectRatio: CGSize {
+        get {
+            if let ratio = CVBufferGetAttachment(self, kCVImageBufferPixelAspectRatioKey, nil)?.takeUnretainedValue() as? NSDictionary,
+               let horizontal = (ratio[kCVImageBufferPixelAspectRatioHorizontalSpacingKey] as? NSNumber)?.intValue,
+               let vertical = (ratio[kCVImageBufferPixelAspectRatioVerticalSpacingKey] as? NSNumber)?.intValue,
+               horizontal > 0, vertical > 0
+            {
+                return CGSize(width: horizontal, height: vertical)
+            } else {
+                return CGSize(width: 1, height: 1)
+            }
+        }
+        set {
+            if let aspectRatio = newValue.aspectRatio {
+                CVBufferSetAttachment(self, kCVImageBufferPixelAspectRatioKey, aspectRatio, .shouldPropagate)
+            }
+        }
+    }
+
+    var isPlanar: Bool { CVPixelBufferIsPlanar(self) }
+
+    public var planeCount: Int { isPlanar ? CVPixelBufferGetPlaneCount(self) : 1 }
+    public var formatDescription: CMVideoFormatDescription? {
+        var formatDescription: CMVideoFormatDescription?
+        let err = CMVideoFormatDescriptionCreateForImageBuffer(allocator: nil, imageBuffer: self, formatDescriptionOut: &formatDescription)
+        if err != noErr {
+            KSLog("Error at CMVideoFormatDescriptionCreateForImageBuffer \(err)")
+        }
+        return formatDescription
+    }
+
+    public var isFullRangeVideo: Bool {
+        CVBufferGetAttachment(self, kCMFormatDescriptionExtension_FullRangeVideo, nil)?.takeUnretainedValue() as? Bool ?? false
+    }
+
+    public var attachmentsDic: CFDictionary? {
+        CVBufferGetAttachments(self, .shouldPropagate)
+    }
+
+    public var yCbCrMatrix: CFString? {
+        get {
+            CVBufferGetAttachment(self, kCVImageBufferYCbCrMatrixKey, nil)?.takeUnretainedValue() as? NSString
+        }
+        set {
+            if let newValue {
+                CVBufferSetAttachment(self, kCVImageBufferYCbCrMatrixKey, newValue, .shouldPropagate)
+            }
+        }
+    }
+
+    public var colorPrimaries: CFString? {
+        get {
+            CVBufferGetAttachment(self, kCVImageBufferColorPrimariesKey, nil)?.takeUnretainedValue() as? NSString
+        }
+        set {
+            if let newValue {
+                CVBufferSetAttachment(self, kCVImageBufferColorPrimariesKey, newValue, .shouldPropagate)
+            }
+        }
+    }
+
+    public var transferFunction: CFString? {
+        get {
+            CVBufferGetAttachment(self, kCVImageBufferTransferFunctionKey, nil)?.takeUnretainedValue() as? NSString
+        }
+        set {
+            if let newValue {
+                CVBufferSetAttachment(self, kCVImageBufferTransferFunctionKey, newValue, .shouldPropagate)
+            }
+        }
+    }
+
+    public var colorspace: CGColorSpace? {
+        get {
+            #if os(macOS)
+            return CVImageBufferGetColorSpace(self)?.takeUnretainedValue() ?? attachmentsDic.flatMap { CVImageBufferCreateColorSpaceFromAttachments($0)?.takeUnretainedValue() }
+            #else
+            return attachmentsDic.flatMap { CVImageBufferCreateColorSpaceFromAttachments($0)?.takeUnretainedValue() }
+            #endif
+        }
+        set {
+            if let newValue {
+                CVBufferSetAttachment(self, kCVImageBufferCGColorSpaceKey, newValue, .shouldPropagate)
+            }
+        }
+    }
+
+    public var bitDepth: Int32 {
+        CVPixelBufferGetPixelFormatType(self).bitDepth
+    }
+
+    public func cgImage() -> CGImage? {
+        var cgImage: CGImage?
+        VTCreateCGImageFromCVPixelBuffer(self, options: nil, imageOut: &cgImage)
+        return cgImage
+    }
+
+    public func widthOfPlane(at planeIndex: Int) -> Int {
+        CVPixelBufferGetWidthOfPlane(self, planeIndex)
+    }
+
+    public func heightOfPlane(at planeIndex: Int) -> Int {
+        CVPixelBufferGetHeightOfPlane(self, planeIndex)
+    }
+
+    func baseAddressOfPlane(at planeIndex: Int) -> UnsafeMutableRawPointer? {
+        CVPixelBufferGetBaseAddressOfPlane(self, planeIndex)
+    }
+
+    public func textures() -> [MTLTexture] {
+        MetalRender.texture(pixelBuffer: self)
+    }
+
+    public func matche(formatDescription: CMVideoFormatDescription) -> Bool {
+        CMVideoFormatDescriptionMatchesImageBuffer(formatDescription, imageBuffer: self)
+    }
+}
+
+class PixelBuffer: PixelBufferProtocol {
+    let bitDepth: Int32
+    let width: Int
+    let height: Int
+    let planeCount: Int
+    var aspectRatio: CGSize
+    let leftShift: UInt8
+    let isFullRangeVideo: Bool
+    var cvPixelBuffer: CVPixelBuffer? { nil }
+    var colorPrimaries: CFString?
+    var transferFunction: CFString?
+    var yCbCrMatrix: CFString?
+    var colorspace: CGColorSpace?
+    var formatDescription: CMVideoFormatDescription? = nil
+    private let format: AVPixelFormat
+    private let formats: [MTLPixelFormat]
+    private let widths: [Int]
+    private let heights: [Int]
+    private let buffers: [MTLBuffer?]
+    private let lineSize: [Int]
+
+    init(frame: AVFrame) {
+        yCbCrMatrix = frame.colorspace.ycbcrMatrix
+        colorPrimaries = frame.color_primaries.colorPrimaries
+        transferFunction = frame.color_trc.transferFunction
+        colorspace = KSOptions.colorSpace(ycbcrMatrix: yCbCrMatrix, transferFunction: transferFunction)
+        width = Int(frame.width)
+        height = Int(frame.height)
+        isFullRangeVideo = frame.color_range == AVCOL_RANGE_JPEG
+        aspectRatio = frame.sample_aspect_ratio.size
+        format = AVPixelFormat(rawValue: frame.format)
+        leftShift = format.leftShift
+        bitDepth = format.bitDepth
+        planeCount = Int(format.planeCount)
+        let desc = av_pix_fmt_desc_get(format)?.pointee
+        let chromaW = desc?.log2_chroma_w == 1 ? 2 : 1
+        let chromaH = desc?.log2_chroma_h == 1 ? 2 : 1
+        switch planeCount {
+        case 3:
+            widths = [width, width / chromaW, width / chromaW]
+            heights = [height, height / chromaH, height / chromaH]
+        case 2:
+            widths = [width, width / chromaW]
+            heights = [height, height / chromaH]
+        default:
+            widths = [width]
+            heights = [height]
+        }
+        formats = KSOptions.pixelFormat(planeCount: planeCount, bitDepth: bitDepth)
+        var buffers = [MTLBuffer?]()
+        var lineSize = [Int]()
+        let bytes = Array(tuple: frame.data)
+        let bytesPerRow = Array(tuple: frame.linesize).compactMap { Int($0) }
+        for i in 0 ..< planeCount {
+            let alignment = MetalRender.device.minimumLinearTextureAlignment(for: formats[i])
+            lineSize.append(bytesPerRow[i].alignment(value: alignment))
+            let buffer: MTLBuffer?
+            let size = lineSize[i]
+            let byteCount = bytesPerRow[i]
+            let height = heights[i]
+            if byteCount == size {
+                buffer = MetalRender.device.makeBuffer(bytes: bytes[i]!, length: height * size)
+            } else {
+                buffer = MetalRender.device.makeBuffer(length: heights[i] * lineSize[i])
+                let contents = buffer?.contents()
+                let source = bytes[i]!
+                var j = 0
+                // 性能 while > stride(from:to:by:) > for in
+                while j < height {
+                    contents?.advanced(by: j * size).copyMemory(from: source.advanced(by: j * byteCount), byteCount: byteCount)
+                    j += 1
+                }
+            }
+            buffers.append(buffer)
+        }
+        self.lineSize = lineSize
+        self.buffers = buffers
+    }
+
+    func textures() -> [MTLTexture] {
+        MetalRender.textures(formats: formats, widths: widths, heights: heights, buffers: buffers, lineSizes: lineSize)
+    }
+
+    func widthOfPlane(at planeIndex: Int) -> Int {
+        widths[planeIndex]
+    }
+
+    func heightOfPlane(at planeIndex: Int) -> Int {
+        heights[planeIndex]
+    }
+
+    func cgImage() -> CGImage? {
+        let image: CGImage?
+        if format == AV_PIX_FMT_RGB24 {
+            image = CGImage.make(rgbData: buffers[0]!.contents().assumingMemoryBound(to: UInt8.self), linesize: Int(lineSize[0]), width: width, height: height)
+        } else {
+            let scale = VideoSwresample(isDovi: false)
+            image = scale.transfer(format: format, width: Int32(width), height: Int32(height), data: buffers.map { $0?.contents().assumingMemoryBound(to: UInt8.self) }, linesize: lineSize.map { Int32($0) })?.cgImage()
+            scale.shutdown()
+        }
+        return image
+    }
+
+    public func matche(formatDescription: CMVideoFormatDescription) -> Bool {
+        self.formatDescription == formatDescription
+    }
+}
+
+extension CGSize {
+    var aspectRatio: NSDictionary? {
+        if width != 0, height != 0, width != height {
+            return [kCVImageBufferPixelAspectRatioHorizontalSpacingKey: width,
+                    kCVImageBufferPixelAspectRatioVerticalSpacingKey: height]
+        } else {
+            return nil
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/Metal/Shaders.metal

@@ -0,0 +1,103 @@
+//
+//  Shaders.metal
+#include <metal_stdlib>
+using namespace metal;
+
+struct VertexIn
+{
+    float4 pos [[attribute(0)]];
+    float2 uv [[attribute(1)]];
+};
+
+struct VertexOut {
+    float4 renderedCoordinate [[position]];
+    float2 textureCoordinate;
+};
+
+vertex VertexOut mapTexture(VertexIn input [[stage_in]]) {
+    VertexOut outVertex;
+    outVertex.renderedCoordinate = input.pos;
+    outVertex.textureCoordinate = input.uv;
+    return outVertex;
+}
+
+vertex VertexOut mapSphereTexture(VertexIn input [[stage_in]], constant float4x4& uniforms [[ buffer(2) ]]) {
+    VertexOut outVertex;
+    outVertex.renderedCoordinate = uniforms * input.pos;
+    outVertex.textureCoordinate = input.uv;
+    return outVertex;
+}
+
+fragment half4 displayTexture(VertexOut mappingVertex [[ stage_in ]],
+                              texture2d<half, access::sample> texture [[ texture(0) ]]) {
+    constexpr sampler s(address::clamp_to_edge, filter::linear);
+
+    return half4(texture.sample(s, mappingVertex.textureCoordinate));
+}
+
+fragment half4 displayYUVTexture(VertexOut in [[ stage_in ]],
+                                  texture2d<half> yTexture [[ texture(0) ]],
+                                  texture2d<half> uTexture [[ texture(1) ]],
+                                  texture2d<half> vTexture [[ texture(2) ]],
+                                  sampler textureSampler [[ sampler(0) ]],
+                                  constant float3x3& yuvToBGRMatrix [[ buffer(0) ]],
+                                  constant float3& colorOffset [[ buffer(1) ]],
+                                  constant uchar3& leftShift [[ buffer(2) ]])
+{
+    half3 yuv;
+    yuv.x = yTexture.sample(textureSampler, in.textureCoordinate).r;
+    yuv.y = uTexture.sample(textureSampler, in.textureCoordinate).r;
+    yuv.z = vTexture.sample(textureSampler, in.textureCoordinate).r;
+    return half4(half3x3(yuvToBGRMatrix)*(yuv*half3(leftShift)+half3(colorOffset)), 1);
+}
+
+
+fragment half4 displayNV12Texture(VertexOut in [[ stage_in ]],
+                                  texture2d<half> lumaTexture [[ texture(0) ]],
+                                  texture2d<half> chromaTexture [[ texture(1) ]],
+                                  sampler textureSampler [[ sampler(0) ]],
+                                  constant float3x3& yuvToBGRMatrix [[ buffer(0) ]],
+                                  constant float3& colorOffset [[ buffer(1) ]],
+                                  constant uchar3& leftShift [[ buffer(2) ]])
+{
+    half3 yuv;
+    yuv.x = lumaTexture.sample(textureSampler, in.textureCoordinate).r;
+    yuv.yz = chromaTexture.sample(textureSampler, in.textureCoordinate).rg;
+    return half4(half3x3(yuvToBGRMatrix)*(yuv*half3(leftShift)+half3(colorOffset)), 1);
+}
+
+half3 shaderLinearize(half3 rgb) {
+    rgb = pow(max(rgb,0), half3(4096.0/(2523 * 128)));
+    rgb = max(rgb - half3(3424./4096), 0.0) / (half3(2413./4096 * 32) - half3(2392./4096 * 32) * rgb);
+    rgb = pow(rgb, half3(4096.0 * 4 / 2610));
+    return rgb;
+}
+
+half3 shaderDeLinearize(half3 rgb) {
+    rgb = pow(max(rgb,0), half3(2610./4096 / 4));
+    rgb = (half3(3424./4096) - half3(2413./4096 * 32) * rgb) / (half3(1.0) + half3(2392./4096 * 32) * rgb);
+    rgb = pow(rgb, half3(2523./4096 * 128));
+    return rgb;
+}
+
+fragment half4 displayYCCTexture(VertexOut in [[ stage_in ]],
+                                  texture2d<half> lumaTexture [[ texture(0) ]],
+                                  texture2d<half> chromaTexture [[ texture(1) ]],
+                                  sampler textureSampler [[ sampler(0) ]],
+                                  constant float3x3& yuvToBGRMatrix [[ buffer(0) ]],
+                                  constant float3& colorOffset [[ buffer(1) ]],
+                                  constant uchar3& leftShift [[ buffer(2) ]])
+{
+    half3 ipt;
+    ipt.x = lumaTexture.sample(textureSampler, in.textureCoordinate).r;
+    ipt.yz = chromaTexture.sample(textureSampler, in.textureCoordinate).rg;
+//    half3x3 ipt2lms = half3x3{{1, 0.1952, 0.4104}, {1, -0.2278, 0.2264}, {1, 0.0652, -1.3538}};
+//    half3x3 lms2rgb = half3x3{{3.238998, -0.719461, -0.002862}, {-2.272734, 1.874998, -0.268066}, {0.086733, -0.158947, 1.074494}};
+    half3x3 ipt2lms = half3x3{{1, 799/8192, 1681/8192}, {1, -933/8192, 1091/8192}, {1, 267/8192, -5545/8192}};
+    half3x3 lms2rgb = half3x3{{3.43661, -0.79133, -0.0259499}, {-2.50645, 1.98360, -0.0989137}, {0.06984, -0.192271, 1.12486}};
+    half3 lms = ipt2lms*ipt;
+    lms = shaderLinearize(lms);
+    half3 rgb = lms2rgb*lms;
+    rgb = shaderDeLinearize(rgb);
+    return half4(rgb, 1);
+}

KSPlayer-main/Sources/KSPlayer/Metal/Transforms.swift

@@ -0,0 +1,110 @@
+//
+//  Transforms.swift
+//  MetalSpectrograph
+//
+//  Created by David Conner on 9/9/15.
+//  Copyright © 2015 Voxxel. All rights reserved.
+//
+
+import simd
+
+// swiftlint:disable identifier_name
+extension simd_float4x4 {
+    static let identity = matrix_identity_float4x4
+    // sx  0   0   0
+    // 0   sy  0   0
+    // 0   0   sz  0
+    // 0   0   0   1
+
+    init(scale x: Float, y: Float, z: Float) {
+        self.init(diagonal: [x, y, z, 1.0])
+    }
+
+    // 1   0   0   tx
+    // 0   1   0   ty
+    // 0   0   1   tz
+    // 0   0   0   1
+    init(translate: SIMD3<Float>) {
+        self.init([1, 0.0, 0.0, translate.x],
+                  [0.0, 1, 0.0, translate.y],
+                  [0.0, 0.0, 1, translate.z],
+                  [0.0, 0.0, 0, 1])
+    }
+
+    init(rotationX radians: Float) {
+        let cos = cosf(radians)
+        let sin = sinf(radians)
+        self.init([1, 0.0, 0.0, 0],
+                  [0.0, cos, sin, 0],
+                  [0.0, -sin, cos, 0],
+                  [0.0, 0.0, 0, 1])
+    }
+
+    init(rotationY radians: Float) {
+        let cos = cosf(radians)
+        let sin = sinf(radians)
+        self.init([cos, 0.0, -sin, 0],
+                  [0.0, 1, 0, 0],
+                  [sin, 0, cos, 0],
+                  [0.0, 0.0, 0, 1])
+    }
+
+    init(rotationZ radians: Float) {
+        let cos = cosf(radians)
+        let sin = sinf(radians)
+        self.init([cos, sin, 0.0, 0],
+                  [-sin, cos, 0, 0],
+                  [0.0, 0, 1, 0],
+                  [0.0, 0.0, 0, 1])
+    }
+
+    public init(lookAt eye: SIMD3<Float>, center: SIMD3<Float>, up: SIMD3<Float>) {
+        let N = normalize(eye - center)
+        let U = normalize(cross(up, N))
+        let V = cross(N, U)
+        self.init(rows: [[U.x, V.x, N.x, 0.0],
+                         [U.y, V.y, N.y, 0.0],
+                         [U.z, V.z, N.z, 0.0],
+                         [dot(-U, eye), dot(-V, eye), dot(-N, eye), 1.0]])
+    }
+
+    public init(perspective fovyRadians: Float, aspect: Float, nearZ: Float, farZ: Float) {
+        let cotan = 1.0 / tanf(fovyRadians / 2.0)
+        self.init([cotan / aspect, 0.0, 0.0, 0.0],
+                  [0.0, cotan, 0.0, 0.0],
+                  [0.0, 0.0, (farZ + nearZ) / (nearZ - farZ), -1],
+                  [0.0, 0.0, (2.0 * farZ * nearZ) / (nearZ - farZ), 0])
+    }
+
+    public init(euler x: Float, y: Float, z: Float) {
+        let x = x * .pi / 180
+        let y = y * .pi / 180
+        let z = z * .pi / 180
+        let cx = cos(x)
+        let sx = sin(x)
+        let cy = cos(y)
+        let sy = sin(y)
+        let cz = cos(z)
+        let sz = sin(z)
+        let cxsy = cx * sy
+        let sxsy = sx * sy
+        self.init([cy * cz, -cy * sz, sy, 0.0],
+                  [cxsy * cz + cx * sz, -cxsy * sz + cx * cz, -sx * cy, 0.0],
+                  [-sxsy * cz + sx * sz, sxsy * sz + sx * cz, cx * cy, 0],
+                  [0.0, 0.0, 0, 1])
+    }
+
+    func rotateX(radians: Float) -> simd_float4x4 {
+        self * simd_float4x4(rotationX: radians)
+    }
+
+    func rotateY(radians: Float) -> simd_float4x4 {
+        self * simd_float4x4(rotationY: radians)
+    }
+
+    func rotateZ(radians: Float) -> simd_float4x4 {
+        self * simd_float4x4(rotationZ: radians)
+    }
+}
+
+// swiftlint:enable identifier_name

KSPlayer-main/Sources/KSPlayer/Subtitle/AudioRecognize.swift

@@ -0,0 +1,12 @@
+//
+//  AudioRecognize.swift
+//  KSPlayer
+//
+//  Created by kintan on 2023/9/23.
+//
+
+import Foundation
+
+public protocol AudioRecognize: SubtitleInfo {
+    func append(frame: AudioFrame)
+}

KSPlayer-main/Sources/KSPlayer/Subtitle/KSParseProtocol.swift

@@ -0,0 +1,422 @@
+//
+//  KSParseProtocol.swift
+//  KSPlayer-7de52535
+//
+//  Created by kintan on 2018/8/7.
+//
+import Foundation
+import SwiftUI
+#if !canImport(UIKit)
+import AppKit
+#else
+import UIKit
+#endif
+public protocol KSParseProtocol {
+    func canParse(scanner: Scanner) -> Bool
+    func parsePart(scanner: Scanner) -> SubtitlePart?
+}
+
+public extension KSOptions {
+    static var subtitleParses: [KSParseProtocol] = [AssParse(), VTTParse(), SrtParse()]
+}
+
+public extension String {}
+
+public extension KSParseProtocol {
+    func parse(scanner: Scanner) -> [SubtitlePart] {
+        var groups = [SubtitlePart]()
+
+        while !scanner.isAtEnd {
+            if let group = parsePart(scanner: scanner) {
+                groups.append(group)
+            }
+        }
+        groups = groups.mergeSortBottomUp { $0 < $1 }
+        return groups
+    }
+}
+
+public class AssParse: KSParseProtocol {
+    private var styleMap = [String: ASSStyle]()
+    private var eventKeys = ["Layer", "Start", "End", "Style", "Name", "MarginL", "MarginR", "MarginV", "Effect", "Text"]
+    private var playResX = Float(0.0)
+    private var playResY = Float(0.0)
+    public func canParse(scanner: Scanner) -> Bool {
+        guard scanner.scanString("[Script Info]") != nil else {
+            return false
+        }
+        while scanner.scanString("Format:") == nil {
+            if scanner.scanString("PlayResX:") != nil {
+                playResX = scanner.scanFloat() ?? 0
+            } else if scanner.scanString("PlayResY:") != nil {
+                playResY = scanner.scanFloat() ?? 0
+            } else {
+                _ = scanner.scanUpToCharacters(from: .newlines)
+            }
+        }
+        guard var keys = scanner.scanUpToCharacters(from: .newlines)?.components(separatedBy: ",") else {
+            return false
+        }
+        keys = keys.map { $0.trimmingCharacters(in: .whitespaces) }
+        while scanner.scanString("Style:") != nil {
+            _ = scanner.scanString("Format: ")
+            guard let values = scanner.scanUpToCharacters(from: .newlines)?.components(separatedBy: ",") else {
+                continue
+            }
+            var dic = [String: String]()
+            for i in 1 ..< keys.count {
+                dic[keys[i]] = values[i]
+            }
+            styleMap[values[0]] = dic.parseASSStyle()
+        }
+        _ = scanner.scanString("[Events]")
+        if scanner.scanString("Format: ") != nil {
+            guard let keys = scanner.scanUpToCharacters(from: .newlines)?.components(separatedBy: ",") else {
+                return false
+            }
+            eventKeys = keys.map { $0.trimmingCharacters(in: .whitespaces) }
+        }
+        return true
+    }
+
+    // Dialogue: 0,0:12:37.73,0:12:38.83,Aki Default,,0,0,0,,{\be8}原来如此
+    // ffmpeg 软解的字幕
+    // 875,,Default,NTP,0000,0000,0000,!Effect,- 你们两个别冲这么快\\N- 我会取消所有行程尽快赶过去
+    public func parsePart(scanner: Scanner) -> SubtitlePart? {
+        let isDialogue = scanner.scanString("Dialogue") != nil
+        var dic = [String: String]()
+        for i in 0 ..< eventKeys.count {
+            if !isDialogue, i == 1 {
+                continue
+            }
+            if i == eventKeys.count - 1 {
+                dic[eventKeys[i]] = scanner.scanUpToCharacters(from: .newlines)
+            } else {
+                dic[eventKeys[i]] = scanner.scanUpToString(",")
+                _ = scanner.scanString(",")
+            }
+        }
+        let start: TimeInterval
+        let end: TimeInterval
+        if let startString = dic["Start"], let endString = dic["End"] {
+            start = startString.parseDuration()
+            end = endString.parseDuration()
+        } else {
+            if isDialogue {
+                return nil
+            } else {
+                start = 0
+                end = 0
+            }
+        }
+        var attributes: [NSAttributedString.Key: Any]?
+        var textPosition: TextPosition
+        if let style = dic["Style"], let assStyle = styleMap[style] {
+            attributes = assStyle.attrs
+            textPosition = assStyle.textPosition
+            if let marginL = dic["MarginL"].flatMap(Double.init), marginL != 0 {
+                textPosition.leftMargin = CGFloat(marginL)
+            }
+            if let marginR = dic["MarginR"].flatMap(Double.init), marginR != 0 {
+                textPosition.rightMargin = CGFloat(marginR)
+            }
+            if let marginV = dic["MarginV"].flatMap(Double.init), marginV != 0 {
+                textPosition.verticalMargin = CGFloat(marginV)
+            }
+        } else {
+            textPosition = TextPosition()
+        }
+        guard var text = dic["Text"] else {
+            return nil
+        }
+        text = text.replacingOccurrences(of: "\\N", with: "\n")
+        text = text.replacingOccurrences(of: "\\n", with: "\n")
+        let part = SubtitlePart(start, end, attributedString: text.build(textPosition: &textPosition, attributed: attributes))
+        part.textPosition = textPosition
+        return part
+    }
+}
+
+public struct ASSStyle {
+    let attrs: [NSAttributedString.Key: Any]
+    let textPosition: TextPosition
+}
+
+// swiftlint:disable cyclomatic_complexity
+extension String {
+    func build(textPosition: inout TextPosition, attributed: [NSAttributedString.Key: Any]? = nil) -> NSAttributedString {
+        let lineCodes = splitStyle()
+        let attributedStr = NSMutableAttributedString()
+        var attributed = attributed ?? [:]
+        for lineCode in lineCodes {
+            attributedStr.append(lineCode.0.parseStyle(attributes: &attributed, style: lineCode.1, textPosition: &textPosition))
+        }
+        return attributedStr
+    }
+
+    func splitStyle() -> [(String, String?)] {
+        let scanner = Scanner(string: self)
+        scanner.charactersToBeSkipped = nil
+        var result = [(String, String?)]()
+        var sytle: String?
+        while !scanner.isAtEnd {
+            if scanner.scanString("{") != nil {
+                sytle = scanner.scanUpToString("}")
+                _ = scanner.scanString("}")
+            } else if let text = scanner.scanUpToString("{") {
+                result.append((text, sytle))
+            } else if let text = scanner.scanUpToCharacters(from: .newlines) {
+                result.append((text, sytle))
+            }
+        }
+        return result
+    }
+
+    func parseStyle(attributes: inout [NSAttributedString.Key: Any], style: String?, textPosition: inout TextPosition) -> NSAttributedString {
+        guard let style else {
+            return NSAttributedString(string: self, attributes: attributes)
+        }
+        var fontName: String?
+        var fontSize: Float?
+        let subStyleArr = style.components(separatedBy: "\\")
+        var shadow = attributes[.shadow] as? NSShadow
+        for item in subStyleArr {
+            let itemStr = item.replacingOccurrences(of: " ", with: "")
+            let scanner = Scanner(string: itemStr)
+            let char = scanner.scanCharacter()
+            switch char {
+            case "a":
+                let char = scanner.scanCharacter()
+                if char == "n" {
+                    textPosition.ass(alignment: scanner.scanUpToCharacters(from: .newlines))
+                }
+            case "b":
+                attributes[.expansion] = scanner.scanFloat()
+            case "c":
+                attributes[.foregroundColor] = scanner.scanUpToCharacters(from: .newlines).flatMap(UIColor.init(assColor:))
+            case "f":
+                let char = scanner.scanCharacter()
+                if char == "n" {
+                    fontName = scanner.scanUpToCharacters(from: .newlines)
+                } else if char == "s" {
+                    fontSize = scanner.scanFloat()
+                }
+            case "i":
+                attributes[.obliqueness] = scanner.scanFloat()
+            case "s":
+                if scanner.scanString("had") != nil {
+                    if let size = scanner.scanFloat() {
+                        shadow = shadow ?? NSShadow()
+                        shadow?.shadowOffset = CGSize(width: CGFloat(size), height: CGFloat(size))
+                        shadow?.shadowBlurRadius = CGFloat(size)
+                    }
+                    attributes[.shadow] = shadow
+                } else {
+                    attributes[.strikethroughStyle] = scanner.scanInt()
+                }
+            case "u":
+                attributes[.underlineStyle] = scanner.scanInt()
+            case "1", "2", "3", "4":
+                let twoChar = scanner.scanCharacter()
+                if twoChar == "c" {
+                    let color = scanner.scanUpToCharacters(from: .newlines).flatMap(UIColor.init(assColor:))
+                    if char == "1" {
+                        attributes[.foregroundColor] = color
+                    } else if char == "2" {
+                        // 还不知道这个要设置到什么颜色上
+//                        attributes[.backgroundColor] = color
+                    } else if char == "3" {
+                        attributes[.strokeColor] = color
+                    } else if char == "4" {
+                        shadow = shadow ?? NSShadow()
+                        shadow?.shadowColor = color
+                        attributes[.shadow] = shadow
+                    }
+                }
+            default:
+                break
+            }
+        }
+        // Apply font attributes if available
+        if let fontName, let fontSize {
+            let font = UIFont(name: fontName, size: CGFloat(fontSize)) ?? UIFont.systemFont(ofSize: CGFloat(fontSize))
+            attributes[.font] = font
+        }
+        return NSAttributedString(string: self, attributes: attributes)
+    }
+}
+
+public extension [String: String] {
+    func parseASSStyle() -> ASSStyle {
+        var attributes: [NSAttributedString.Key: Any] = [:]
+        if let fontName = self["Fontname"], let fontSize = self["Fontsize"].flatMap(Double.init) {
+            var font = UIFont(name: fontName, size: fontSize) ?? UIFont.systemFont(ofSize: fontSize)
+            if let degrees = self["Angle"].flatMap(Double.init), degrees != 0 {
+                let radians = CGFloat(degrees * .pi / 180.0)
+                #if !canImport(UIKit)
+                let matrix = AffineTransform(rotationByRadians: radians)
+                #else
+                let matrix = CGAffineTransform(rotationAngle: radians)
+                #endif
+                let fontDescriptor = UIFontDescriptor(name: fontName, matrix: matrix)
+                font = UIFont(descriptor: fontDescriptor, size: fontSize) ?? font
+            }
+            attributes[.font] = font
+        }
+        // 创建字体样式
+        if let assColor = self["PrimaryColour"] {
+            attributes[.foregroundColor] = UIColor(assColor: assColor)
+        }
+        // 还不知道这个要设置到什么颜色上
+        if let assColor = self["SecondaryColour"] {
+//            attributes[.backgroundColor] = UIColor(assColor: assColor)
+        }
+        if self["Bold"] == "1" {
+            attributes[.expansion] = 1
+        }
+        if self["Italic"] == "1" {
+            attributes[.obliqueness] = 1
+        }
+        if self["Underline"] == "1" {
+            attributes[.underlineStyle] = NSUnderlineStyle.single.rawValue
+        }
+        if self["StrikeOut"] == "1" {
+            attributes[.strikethroughStyle] = NSUnderlineStyle.single.rawValue
+        }
+
+//        if let scaleX = self["ScaleX"].flatMap(Double.init), scaleX != 100 {
+//            attributes[.expansion] = scaleX / 100.0
+//        }
+//        if let scaleY = self["ScaleY"].flatMap(Double.init), scaleY != 100 {
+//            attributes[.baselineOffset] = scaleY - 100.0
+//        }
+
+//        if let spacing = self["Spacing"].flatMap(Double.init) {
+//            attributes[.kern] = CGFloat(spacing)
+//        }
+
+        if self["BorderStyle"] == "1" {
+            if let strokeWidth = self["Outline"].flatMap(Double.init), strokeWidth > 0 {
+                attributes[.strokeWidth] = -strokeWidth
+                if let assColor = self["OutlineColour"] {
+                    attributes[.strokeColor] = UIColor(assColor: assColor)
+                }
+            }
+            if let assColor = self["BackColour"],
+               let shadowOffset = self["Shadow"].flatMap(Double.init),
+               shadowOffset > 0
+            {
+                let shadow = NSShadow()
+                shadow.shadowOffset = CGSize(width: CGFloat(shadowOffset), height: CGFloat(shadowOffset))
+                shadow.shadowBlurRadius = shadowOffset
+                shadow.shadowColor = UIColor(assColor: assColor)
+                attributes[.shadow] = shadow
+            }
+        }
+        var textPosition = TextPosition()
+        textPosition.ass(alignment: self["Alignment"])
+        if let marginL = self["MarginL"].flatMap(Double.init) {
+            textPosition.leftMargin = CGFloat(marginL)
+        }
+        if let marginR = self["MarginR"].flatMap(Double.init) {
+            textPosition.rightMargin = CGFloat(marginR)
+        }
+        if let marginV = self["MarginV"].flatMap(Double.init) {
+            textPosition.verticalMargin = CGFloat(marginV)
+        }
+        return ASSStyle(attrs: attributes, textPosition: textPosition)
+    }
+    // swiftlint:enable cyclomatic_complexity
+}
+
+public class VTTParse: KSParseProtocol {
+    public func canParse(scanner: Scanner) -> Bool {
+        let result = scanner.scanString("WEBVTT")
+        if result != nil {
+            scanner.charactersToBeSkipped = nil
+            return true
+        } else {
+            return false
+        }
+    }
+
+    /**
+     00:00.430 --> 00:03.380
+     简中封装 by Q66
+     */
+    public func parsePart(scanner: Scanner) -> SubtitlePart? {
+        var timeStrs: String?
+        repeat {
+            timeStrs = scanner.scanUpToCharacters(from: .newlines)
+            _ = scanner.scanCharacters(from: .newlines)
+        } while !(timeStrs?.contains("-->") ?? false) && !scanner.isAtEnd
+        guard let timeStrs else {
+            return nil
+        }
+        let timeArray: [String] = timeStrs.components(separatedBy: "-->")
+        if timeArray.count == 2 {
+            let startString = timeArray[0]
+            let endString = timeArray[1]
+            _ = scanner.scanCharacters(from: .newlines)
+            var text = ""
+            var newLine: String? = nil
+            repeat {
+                if let str = scanner.scanUpToCharacters(from: .newlines) {
+                    text += str
+                }
+                newLine = scanner.scanCharacters(from: .newlines)
+                if newLine == "\n" || newLine == "\r\n" {
+                    text += "\n"
+                }
+            } while newLine == "\n" || newLine == "\r\n"
+            var textPosition = TextPosition()
+            return SubtitlePart(startString.parseDuration(), endString.parseDuration(), attributedString: text.build(textPosition: &textPosition))
+        }
+        return nil
+    }
+}
+
+public class SrtParse: KSParseProtocol {
+    public func canParse(scanner: Scanner) -> Bool {
+        let result = scanner.string.contains(" --> ")
+        if result {
+            scanner.charactersToBeSkipped = nil
+        }
+        return result
+    }
+
+    /**
+     45
+     00:02:52,184 --> 00:02:53,617
+     {\an4}慢慢来
+     */
+    public func parsePart(scanner: Scanner) -> SubtitlePart? {
+        var decimal: String?
+        repeat {
+            decimal = scanner.scanUpToCharacters(from: .newlines)
+            _ = scanner.scanCharacters(from: .newlines)
+        } while decimal.flatMap(Int.init) == nil
+        let startString = scanner.scanUpToString("-->")
+        // skip spaces and newlines by default.
+        _ = scanner.scanString("-->")
+        if let startString,
+           let endString = scanner.scanUpToCharacters(from: .newlines)
+        {
+            _ = scanner.scanCharacters(from: .newlines)
+            var text = ""
+            var newLine: String? = nil
+            repeat {
+                if let str = scanner.scanUpToCharacters(from: .newlines) {
+                    text += str
+                }
+                newLine = scanner.scanCharacters(from: .newlines)
+                if newLine == "\n" || newLine == "\r\n" {
+                    text += "\n"
+                }
+            } while newLine == "\n" || newLine == "\r\n"
+            var textPosition = TextPosition()
+            return SubtitlePart(startString.parseDuration(), endString.parseDuration(), attributedString: text.build(textPosition: &textPosition))
+        }
+        return nil
+    }
+}

KSPlayer-main/Sources/KSPlayer/Subtitle/KSSubtitle.swift

@@ -0,0 +1,386 @@
+//
+//  KSSubtitle.swift
+//  Pods
+//
+//  Created by kintan on 2017/4/2.
+//
+//
+
+import CoreFoundation
+import CoreGraphics
+import Foundation
+import SwiftUI
+
+public class SubtitlePart: CustomStringConvertible, Identifiable {
+    public var start: TimeInterval
+    public var end: TimeInterval
+    public var origin: CGPoint = .zero
+    public let text: NSAttributedString?
+    public var image: UIImage?
+    public var textPosition: TextPosition?
+    public var description: String {
+        "Subtile Group ==========\nstart: \(start)\nend:\(end)\ntext:\(String(describing: text))"
+    }
+
+    public convenience init(_ start: TimeInterval, _ end: TimeInterval, _ string: String) {
+        var text = string
+        text = text.trimmingCharacters(in: .whitespaces)
+        text = text.replacingOccurrences(of: "\r", with: "")
+        self.init(start, end, attributedString: NSAttributedString(string: text))
+    }
+
+    public init(_ start: TimeInterval, _ end: TimeInterval, attributedString: NSAttributedString?) {
+        self.start = start
+        self.end = end
+        text = attributedString
+    }
+}
+
+public struct TextPosition {
+    public var verticalAlign: VerticalAlignment = .bottom
+    public var horizontalAlign: HorizontalAlignment = .center
+    public var leftMargin: CGFloat = 0
+    public var rightMargin: CGFloat = 0
+    public var verticalMargin: CGFloat = 10
+    public var edgeInsets: EdgeInsets {
+        var edgeInsets = EdgeInsets()
+        if verticalAlign == .bottom {
+            edgeInsets.bottom = verticalMargin
+        } else if verticalAlign == .top {
+            edgeInsets.top = verticalMargin
+        }
+        if horizontalAlign == .leading {
+            edgeInsets.leading = leftMargin
+        }
+        if horizontalAlign == .trailing {
+            edgeInsets.trailing = rightMargin
+        }
+        return edgeInsets
+    }
+
+    public mutating func ass(alignment: String?) {
+        switch alignment {
+        case "1":
+            verticalAlign = .bottom
+            horizontalAlign = .leading
+        case "2":
+            verticalAlign = .bottom
+            horizontalAlign = .center
+        case "3":
+            verticalAlign = .bottom
+            horizontalAlign = .trailing
+        case "4":
+            verticalAlign = .center
+            horizontalAlign = .leading
+        case "5":
+            verticalAlign = .center
+            horizontalAlign = .center
+        case "6":
+            verticalAlign = .center
+            horizontalAlign = .trailing
+        case "7":
+            verticalAlign = .top
+            horizontalAlign = .leading
+        case "8":
+            verticalAlign = .top
+            horizontalAlign = .center
+        case "9":
+            verticalAlign = .top
+            horizontalAlign = .trailing
+        default:
+            break
+        }
+    }
+}
+
+extension SubtitlePart: Comparable {
+    public static func == (left: SubtitlePart, right: SubtitlePart) -> Bool {
+        if left.start == right.start, left.end == right.end {
+            return true
+        } else {
+            return false
+        }
+    }
+
+    public static func < (left: SubtitlePart, right: SubtitlePart) -> Bool {
+        if left.start < right.start {
+            return true
+        } else {
+            return false
+        }
+    }
+}
+
+extension SubtitlePart: NumericComparable {
+    public typealias Compare = TimeInterval
+    public static func == (left: SubtitlePart, right: TimeInterval) -> Bool {
+        left.start <= right && left.end >= right
+    }
+
+    public static func < (left: SubtitlePart, right: TimeInterval) -> Bool {
+        left.end < right
+    }
+}
+
+public protocol KSSubtitleProtocol {
+    func search(for time: TimeInterval) -> [SubtitlePart]
+}
+
+public protocol SubtitleInfo: KSSubtitleProtocol, AnyObject, Hashable, Identifiable {
+    var subtitleID: String { get }
+    var name: String { get }
+    var delay: TimeInterval { get set }
+    //    var userInfo: NSMutableDictionary? { get set }
+    //    var subtitleDataSouce: SubtitleDataSouce? { get set }
+//    var comment: String? { get }
+    var isEnabled: Bool { get set }
+}
+
+public extension SubtitleInfo {
+    var id: String { subtitleID }
+    func hash(into hasher: inout Hasher) {
+        hasher.combine(subtitleID)
+    }
+
+    static func == (lhs: Self, rhs: Self) -> Bool {
+        lhs.subtitleID == rhs.subtitleID
+    }
+}
+
+public class KSSubtitle {
+    public var parts: [SubtitlePart] = []
+    public init() {}
+}
+
+extension KSSubtitle: KSSubtitleProtocol {
+    /// Search for target group for time
+    public func search(for time: TimeInterval) -> [SubtitlePart] {
+        var result = [SubtitlePart]()
+        for part in parts {
+            if part == time {
+                result.append(part)
+            } else if part.start > time {
+                break
+            }
+        }
+        return result
+    }
+}
+
+public extension KSSubtitle {
+    func parse(url: URL, userAgent: String? = nil, encoding: String.Encoding? = nil) async throws {
+        let data = try await url.data(userAgent: userAgent)
+        try parse(data: data, encoding: encoding)
+    }
+
+    func parse(data: Data, encoding: String.Encoding? = nil) throws {
+        var string: String?
+        let encodes = [encoding ?? String.Encoding.utf8,
+                       String.Encoding(rawValue: CFStringConvertEncodingToNSStringEncoding(CFStringEncoding(CFStringEncodings.big5.rawValue))),
+                       String.Encoding(rawValue: CFStringConvertEncodingToNSStringEncoding(CFStringEncoding(CFStringEncodings.GB_18030_2000.rawValue))),
+                       String.Encoding.unicode]
+        for encode in encodes {
+            string = String(data: data, encoding: encode)
+            if string != nil {
+                break
+            }
+        }
+        guard let subtitle = string else {
+            throw NSError(errorCode: .subtitleUnEncoding)
+        }
+        let scanner = Scanner(string: subtitle)
+        _ = scanner.scanCharacters(from: .controlCharacters)
+        let parse = KSOptions.subtitleParses.first { $0.canParse(scanner: scanner) }
+        if let parse {
+            parts = parse.parse(scanner: scanner)
+            if parts.count == 0 {
+                throw NSError(errorCode: .subtitleUnParse)
+            }
+        } else {
+            throw NSError(errorCode: .subtitleFormatUnSupport)
+        }
+    }
+
+//    public static func == (lhs: KSURLSubtitle, rhs: KSURLSubtitle) -> Bool {
+//        lhs.url == rhs.url
+//    }
+}
+
+public protocol NumericComparable {
+    associatedtype Compare
+    static func < (lhs: Self, rhs: Compare) -> Bool
+    static func == (lhs: Self, rhs: Compare) -> Bool
+}
+
+extension Collection where Element: NumericComparable {
+    func binarySearch(key: Element.Compare) -> Self.Index? {
+        var lowerBound = startIndex
+        var upperBound = endIndex
+        while lowerBound < upperBound {
+            let midIndex = index(lowerBound, offsetBy: distance(from: lowerBound, to: upperBound) / 2)
+            if self[midIndex] == key {
+                return midIndex
+            } else if self[midIndex] < key {
+                lowerBound = index(lowerBound, offsetBy: 1)
+            } else {
+                upperBound = midIndex
+            }
+        }
+        return nil
+    }
+}
+
+open class SubtitleModel: ObservableObject {
+    public enum Size {
+        case smaller
+        case standard
+        case large
+        public var rawValue: CGFloat {
+            switch self {
+            case .smaller:
+                #if os(tvOS) || os(xrOS)
+                return 48
+                #elseif os(macOS) || os(xrOS)
+                return 20
+                #else
+                if UI_USER_INTERFACE_IDIOM() == .phone {
+                    return 12
+                } else {
+                    return 20
+                }
+                #endif
+            case .standard:
+                #if os(tvOS) || os(xrOS)
+                return 58
+                #elseif os(macOS) || os(xrOS)
+                return 26
+                #else
+                if UI_USER_INTERFACE_IDIOM() == .phone {
+                    return 16
+                } else {
+                    return 26
+                }
+                #endif
+            case .large:
+                #if os(tvOS) || os(xrOS)
+                return 68
+                #elseif os(macOS) || os(xrOS)
+                return 32
+                #else
+                if UI_USER_INTERFACE_IDIOM() == .phone {
+                    return 20
+                } else {
+                    return 32
+                }
+                #endif
+            }
+        }
+    }
+
+    public static var textColor: Color = .white
+    public static var textBackgroundColor: Color = .clear
+    public static var textFont: UIFont {
+        textBold ? .boldSystemFont(ofSize: textFontSize) : .systemFont(ofSize: textFontSize)
+    }
+
+    public static var textFontSize = SubtitleModel.Size.standard.rawValue
+    public static var textBold = false
+    public static var textItalic = false
+    public static var textPosition = TextPosition()
+    public static var audioRecognizes = [any AudioRecognize]()
+    private var subtitleDataSouces: [SubtitleDataSouce] = KSOptions.subtitleDataSouces
+    @Published
+    public private(set) var subtitleInfos = [any SubtitleInfo]()
+    @Published
+    public private(set) var parts = [SubtitlePart]()
+    public var subtitleDelay = 0.0 // s
+    public var url: URL? {
+        didSet {
+            subtitleInfos.removeAll()
+            searchSubtitle(query: nil, languages: [])
+            if url != nil {
+                subtitleInfos.append(contentsOf: SubtitleModel.audioRecognizes)
+            }
+            for datasouce in subtitleDataSouces {
+                addSubtitle(dataSouce: datasouce)
+            }
+            // 要用async，不能在更新UI的时候，修改Publishe变量
+            DispatchQueue.main.async { [weak self] in
+                self?.parts = []
+                self?.selectedSubtitleInfo = nil
+            }
+        }
+    }
+
+    @Published
+    public var selectedSubtitleInfo: (any SubtitleInfo)? {
+        didSet {
+            oldValue?.isEnabled = false
+            selectedSubtitleInfo?.isEnabled = true
+            if let url, let info = selectedSubtitleInfo as? URLSubtitleInfo, !info.downloadURL.isFileURL, let cache = subtitleDataSouces.first(where: { $0 is CacheSubtitleDataSouce }) as? CacheSubtitleDataSouce {
+                cache.addCache(fileURL: url, downloadURL: info.downloadURL)
+            }
+        }
+    }
+
+    public init() {}
+
+    public func addSubtitle(info: any SubtitleInfo) {
+        if subtitleInfos.first(where: { $0.subtitleID == info.subtitleID }) == nil {
+            subtitleInfos.append(info)
+        }
+    }
+
+    public func subtitle(currentTime: TimeInterval) -> Bool {
+        var newParts = [SubtitlePart]()
+        if let subtile = selectedSubtitleInfo {
+            let currentTime = currentTime - subtile.delay - subtitleDelay
+            newParts = subtile.search(for: currentTime)
+            if newParts.isEmpty {
+                newParts = parts.filter { part in
+                    part == currentTime
+                }
+            }
+        }
+        // swiftUI不会判断是否相等。所以需要这边判断下。
+        if newParts != parts {
+            for part in newParts {
+                if let text = part.text as? NSMutableAttributedString {
+                    text.addAttributes([.font: SubtitleModel.textFont],
+                                       range: NSRange(location: 0, length: text.length))
+                }
+            }
+            parts = newParts
+            return true
+        } else {
+            return false
+        }
+    }
+
+    public func searchSubtitle(query: String?, languages: [String]) {
+        for dataSouce in subtitleDataSouces {
+            if let dataSouce = dataSouce as? SearchSubtitleDataSouce {
+                subtitleInfos.removeAll { info in
+                    dataSouce.infos.contains {
+                        $0 === info
+                    }
+                }
+                Task { @MainActor in
+                    try? await dataSouce.searchSubtitle(query: query, languages: languages)
+                    subtitleInfos.append(contentsOf: dataSouce.infos)
+                }
+            }
+        }
+    }
+
+    public func addSubtitle(dataSouce: SubtitleDataSouce) {
+        if let dataSouce = dataSouce as? FileURLSubtitleDataSouce {
+            Task { @MainActor in
+                try? await dataSouce.searchSubtitle(fileURL: url)
+                subtitleInfos.append(contentsOf: dataSouce.infos)
+            }
+        } else {
+            subtitleInfos.append(contentsOf: dataSouce.infos)
+        }
+    }
+}

KSPlayer-main/Sources/KSPlayer/Subtitle/SubtitleDataSouce.swift

@@ -0,0 +1,404 @@
+//
+//  SubtitleDataSouce.swift
+//  KSPlayer-7de52535
+//
+//  Created by kintan on 2018/8/7.
+//
+import Foundation
+
+public class EmptySubtitleInfo: SubtitleInfo {
+    public var isEnabled: Bool = true
+    public let subtitleID: String = ""
+    public var delay: TimeInterval = 0
+    public let name = NSLocalizedString("no show subtitle", comment: "")
+    public func search(for _: TimeInterval) -> [SubtitlePart] {
+        []
+    }
+}
+
+public class URLSubtitleInfo: KSSubtitle, SubtitleInfo {
+    public var isEnabled: Bool = false {
+        didSet {
+            if isEnabled, parts.isEmpty {
+                Task {
+                    try? await parse(url: downloadURL, userAgent: userAgent)
+                }
+            }
+        }
+    }
+
+    public private(set) var downloadURL: URL
+    public var delay: TimeInterval = 0
+    public private(set) var name: String
+    public let subtitleID: String
+    public var comment: String?
+    public var userInfo: NSMutableDictionary?
+    private let userAgent: String?
+    public convenience init(url: URL) {
+        self.init(subtitleID: url.absoluteString, name: url.lastPathComponent, url: url)
+    }
+
+    public init(subtitleID: String, name: String, url: URL, userAgent: String? = nil) {
+        self.subtitleID = subtitleID
+        self.name = name
+        self.userAgent = userAgent
+        downloadURL = url
+        super.init()
+        if !url.isFileURL, name.isEmpty {
+            url.download(userAgent: userAgent) { [weak self] filename, tmpUrl in
+                guard let self else {
+                    return
+                }
+                self.name = filename
+                self.downloadURL = tmpUrl
+                var fileURL = URL(fileURLWithPath: NSTemporaryDirectory())
+                fileURL.appendPathComponent(filename)
+                try? FileManager.default.moveItem(at: tmpUrl, to: fileURL)
+                self.downloadURL = fileURL
+            }
+        }
+    }
+}
+
+public protocol SubtitleDataSouce: AnyObject {
+    var infos: [any SubtitleInfo] { get }
+}
+
+public protocol FileURLSubtitleDataSouce: SubtitleDataSouce {
+    func searchSubtitle(fileURL: URL?) async throws
+}
+
+public protocol CacheSubtitleDataSouce: FileURLSubtitleDataSouce {
+    func addCache(fileURL: URL, downloadURL: URL)
+}
+
+public protocol SearchSubtitleDataSouce: SubtitleDataSouce {
+    func searchSubtitle(query: String?, languages: [String]) async throws
+}
+
+public extension KSOptions {
+    static var subtitleDataSouces: [SubtitleDataSouce] = [DirectorySubtitleDataSouce()]
+}
+
+public class PlistCacheSubtitleDataSouce: CacheSubtitleDataSouce {
+    public static let singleton = PlistCacheSubtitleDataSouce()
+    public var infos = [any SubtitleInfo]()
+    private let srtCacheInfoPath: String
+    // 因为plist不能保存URL
+    private var srtInfoCaches: [String: [String]]
+    private init() {
+        let cacheFolder = (NSTemporaryDirectory() as NSString).appendingPathComponent("KSSubtitleCache")
+        if !FileManager.default.fileExists(atPath: cacheFolder) {
+            try? FileManager.default.createDirectory(atPath: cacheFolder, withIntermediateDirectories: true, attributes: nil)
+        }
+        srtCacheInfoPath = (cacheFolder as NSString).appendingPathComponent("KSSrtInfo.plist")
+        srtInfoCaches = [String: [String]]()
+        DispatchQueue.global().async { [weak self] in
+            guard let self else {
+                return
+            }
+            self.srtInfoCaches = (NSMutableDictionary(contentsOfFile: self.srtCacheInfoPath) as? [String: [String]]) ?? [String: [String]]()
+        }
+    }
+
+    public func searchSubtitle(fileURL: URL?) async throws {
+        infos = [any SubtitleInfo]()
+        guard let fileURL else {
+            return
+        }
+        infos = srtInfoCaches[fileURL.absoluteString]?.compactMap { downloadURL -> (any SubtitleInfo)? in
+            guard let url = URL(string: downloadURL) else {
+                return nil
+            }
+            let info = URLSubtitleInfo(url: url)
+            info.comment = "local"
+            return info
+        } ?? [any SubtitleInfo]()
+    }
+
+    public func addCache(fileURL: URL, downloadURL: URL) {
+        let file = fileURL.absoluteString
+        let path = downloadURL.absoluteString
+        var array = srtInfoCaches[file] ?? [String]()
+        if !array.contains(where: { $0 == path }) {
+            array.append(path)
+            srtInfoCaches[file] = array
+            DispatchQueue.global().async { [weak self] in
+                guard let self else {
+                    return
+                }
+                (self.srtInfoCaches as NSDictionary).write(toFile: self.srtCacheInfoPath, atomically: false)
+            }
+        }
+    }
+}
+
+public class URLSubtitleDataSouce: SubtitleDataSouce {
+    public var infos: [any SubtitleInfo]
+    public init(urls: [URL]) {
+        infos = urls.map { URLSubtitleInfo(url: $0) }
+    }
+}
+
+public class DirectorySubtitleDataSouce: FileURLSubtitleDataSouce {
+    public var infos = [any SubtitleInfo]()
+    public init() {}
+
+    public func searchSubtitle(fileURL: URL?) async throws {
+        infos = [any SubtitleInfo]()
+        guard let fileURL else {
+            return
+        }
+        if fileURL.isFileURL {
+            let subtitleURLs: [URL] = (try? FileManager.default.contentsOfDirectory(at: fileURL.deletingLastPathComponent(), includingPropertiesForKeys: nil).filter(\.isSubtitle)) ?? []
+            infos = subtitleURLs.map { URLSubtitleInfo(url: $0) }.sorted { left, right in
+                left.name < right.name
+            }
+        }
+    }
+}
+
+public class ShooterSubtitleDataSouce: FileURLSubtitleDataSouce {
+    public var infos = [any SubtitleInfo]()
+    public init() {}
+    public func searchSubtitle(fileURL: URL?) async throws {
+        infos = [any SubtitleInfo]()
+        guard let fileURL else {
+            return
+        }
+        guard fileURL.isFileURL, let searchApi = URL(string: "https://www.shooter.cn/api/subapi.php")?
+            .add(queryItems: ["format": "json", "pathinfo": fileURL.path, "filehash": fileURL.shooterFilehash])
+        else {
+            return
+        }
+        var request = URLRequest(url: searchApi)
+        request.httpMethod = "POST"
+        let (data, _) = try await URLSession.shared.data(for: request)
+        guard let json = try JSONSerialization.jsonObject(with: data) as? [[String: Any]] else {
+            return
+        }
+        infos = json.flatMap { sub in
+            let filesDic = sub["Files"] as? [[String: String]]
+//                let desc = sub["Desc"] as? String ?? ""
+            let delay = TimeInterval(sub["Delay"] as? Int ?? 0) / 1000.0
+            return filesDic?.compactMap { dic in
+                if let string = dic["Link"], let url = URL(string: string) {
+                    let info = URLSubtitleInfo(subtitleID: string, name: "", url: url)
+                    info.delay = delay
+                    return info
+                }
+                return nil
+            } ?? [URLSubtitleInfo]()
+        }
+    }
+}
+
+public class AssrtSubtitleDataSouce: SearchSubtitleDataSouce {
+    private let token: String
+    public var infos = [any SubtitleInfo]()
+    public init(token: String) {
+        self.token = token
+    }
+
+    public func searchSubtitle(query: String?, languages _: [String] = ["zh-cn"]) async throws {
+        infos = [any SubtitleInfo]()
+        guard let query else {
+            return
+        }
+        guard let searchApi = URL(string: "https://api.assrt.net/v1/sub/search")?.add(queryItems: ["q": query]) else {
+            return
+        }
+        var request = URLRequest(url: searchApi)
+        request.httpMethod = "POST"
+        request.addValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+        let (data, _) = try await URLSession.shared.data(for: request)
+        guard let json = try JSONSerialization.jsonObject(with: data) as? [String: Any] else {
+            return
+        }
+        guard let status = json["status"] as? Int, status == 0 else {
+            return
+        }
+        guard let subDict = json["sub"] as? [String: Any], let subArray = subDict["subs"] as? [[String: Any]] else {
+            return
+        }
+        var result = [URLSubtitleInfo]()
+        for sub in subArray {
+            if let assrtSubID = sub["id"] as? Int {
+                try await result.append(contentsOf: loadDetails(assrtSubID: String(assrtSubID)))
+            }
+        }
+        infos = result
+    }
+
+    func loadDetails(assrtSubID: String) async throws -> [URLSubtitleInfo] {
+        var infos = [URLSubtitleInfo]()
+        guard let detailApi = URL(string: "https://api.assrt.net/v1/sub/detail")?.add(queryItems: ["id": assrtSubID]) else {
+            return infos
+        }
+        var request = URLRequest(url: detailApi)
+        request.httpMethod = "POST"
+        request.addValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+        let (data, _) = try await URLSession.shared.data(for: request)
+        guard let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
+            return infos
+        }
+        guard let status = json["status"] as? Int, status == 0 else {
+            return infos
+        }
+        guard let subDict = json["sub"] as? [String: Any], let subArray = subDict["subs"] as? [[String: Any]], let sub = subArray.first else {
+            return infos
+        }
+        if let fileList = sub["filelist"] as? [[String: String]] {
+            for dic in fileList {
+                if let urlString = dic["url"], let filename = dic["f"], let url = URL(string: urlString) {
+                    let info = URLSubtitleInfo(subtitleID: urlString, name: filename, url: url)
+                    infos.append(info)
+                }
+            }
+        } else if let urlString = sub["url"] as? String, let filename = sub["filename"] as? String, let url = URL(string: urlString) {
+            let info = URLSubtitleInfo(subtitleID: urlString, name: filename, url: url)
+            infos.append(info)
+        }
+        return infos
+    }
+}
+
+public class OpenSubtitleDataSouce: SearchSubtitleDataSouce {
+    private var token: String? = nil
+    private let username: String?
+    private let password: String?
+    private let apiKey: String
+    public var infos = [any SubtitleInfo]()
+    public init(apiKey: String, username: String? = nil, password: String? = nil) {
+        self.apiKey = apiKey
+        self.username = username
+        self.password = password
+    }
+
+    public func searchSubtitle(query: String?, languages: [String] = ["zh-cn"]) async throws {
+        try await searchSubtitle(query: query, imdbID: 0, tmdbID: 0, languages: languages)
+    }
+
+    public func searchSubtitle(query: String?, imdbID: Int, tmdbID: Int, languages: [String] = ["zh-cn"]) async throws {
+        infos = [any SubtitleInfo]()
+        var queryItems = [String: String]()
+        if let query {
+            queryItems["query"] = query
+        }
+        if imdbID != 0 {
+            queryItems["imbd_id"] = String(imdbID)
+        }
+        if tmdbID != 0 {
+            queryItems["tmdb_id"] = String(tmdbID)
+        }
+        if queryItems.isEmpty {
+            return
+        }
+        queryItems["languages"] = languages.joined(separator: ",")
+        try await searchSubtitle(queryItems: queryItems)
+    }
+
+    // https://opensubtitles.stoplight.io/docs/opensubtitles-api/a172317bd5ccc-search-for-subtitles
+    public func searchSubtitle(queryItems: [String: String]) async throws {
+        infos = [any SubtitleInfo]()
+        if queryItems.isEmpty {
+            return
+        }
+        guard let searchApi = URL(string: "https://api.opensubtitles.com/api/v1/subtitles")?.add(queryItems: queryItems) else {
+            return
+        }
+        var request = URLRequest(url: searchApi)
+        request.addValue(apiKey, forHTTPHeaderField: "Api-Key")
+        if let token {
+            request.addValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+        }
+        let (data, _) = try await URLSession.shared.data(for: request)
+        guard let json = try JSONSerialization.jsonObject(with: data) as? [String: Any] else {
+            return
+        }
+        guard let dataArray = json["data"] as? [[String: Any]] else {
+            return
+        }
+        var result = [URLSubtitleInfo]()
+        for sub in dataArray {
+            if let attributes = sub["attributes"] as? [String: Any], let files = attributes["files"] as? [[String: Any]] {
+                for file in files {
+                    if let fileID = file["file_id"] as? Int, let info = try await loadDetails(fileID: fileID) {
+                        result.append(info)
+                    }
+                }
+            }
+        }
+        infos = result
+    }
+
+    func loadDetails(fileID: Int) async throws -> URLSubtitleInfo? {
+        guard let detailApi = URL(string: "https://api.opensubtitles.com/api/v1/download")?.add(queryItems: ["file_id": String(fileID)]) else {
+            return nil
+        }
+        var request = URLRequest(url: detailApi)
+        request.httpMethod = "POST"
+        request.addValue(apiKey, forHTTPHeaderField: "Api-Key")
+        if let token {
+            request.addValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+        }
+        let (data, _) = try await URLSession.shared.data(for: request)
+        guard let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
+            return nil
+        }
+        guard let link = json["link"] as? String, let fileName = json["file_name"] as?
+            String, let url = URL(string: link)
+        else {
+            return nil
+        }
+        return URLSubtitleInfo(subtitleID: String(fileID), name: fileName, url: url)
+    }
+}
+
+extension URL {
+    public var components: URLComponents? {
+        URLComponents(url: self, resolvingAgainstBaseURL: true)
+    }
+
+    func add(queryItems: [String: String]) -> URL? {
+        guard var urlComponents = components else {
+            return nil
+        }
+        var reserved = CharacterSet.urlQueryAllowed
+        reserved.remove(charactersIn: ": #[]@!$&'()*+, ;=")
+        urlComponents.percentEncodedQueryItems = queryItems.compactMap { key, value in
+            URLQueryItem(name: key.addingPercentEncoding(withAllowedCharacters: reserved) ?? key, value: value.addingPercentEncoding(withAllowedCharacters: reserved))
+        }
+        return urlComponents.url
+    }
+
+    var shooterFilehash: String {
+        let file: FileHandle
+        do {
+            file = try FileHandle(forReadingFrom: self)
+        } catch {
+            return ""
+        }
+        defer { file.closeFile() }
+
+        file.seekToEndOfFile()
+        let fileSize: UInt64 = file.offsetInFile
+
+        guard fileSize >= 12288 else {
+            return ""
+        }
+
+        let offsets: [UInt64] = [
+            4096,
+            fileSize / 3 * 2,
+            fileSize / 3,
+            fileSize - 8192,
+        ]
+
+        let hash = offsets.map { offset -> String in
+            file.seek(toFileOffset: offset)
+            return file.readData(ofLength: 4096).md5()
+        }.joined(separator: ";")
+        return hash
+    }
+}

KSPlayer-main/Sources/KSPlayer/SwiftUI/AirPlayView.swift

@@ -0,0 +1,77 @@
+//
+//  AirPlayView.swift
+//  KSPlayer
+//
+//  Created by kintan on 2023/5/4.
+//
+
+import AVKit
+import SwiftUI
+
+#if !os(xrOS)
+public struct AirPlayView: UIViewRepresentable {
+    public init() {}
+
+    #if canImport(UIKit)
+    public typealias UIViewType = AVRoutePickerView
+    public func makeUIView(context _: Context) -> UIViewType {
+        let routePickerView = AVRoutePickerView()
+        routePickerView.tintColor = .white
+        return routePickerView
+    }
+
+    public func updateUIView(_: UIViewType, context _: Context) {}
+    #else
+    public typealias NSViewType = AVRoutePickerView
+    public func makeNSView(context _: Context) -> NSViewType {
+        let routePickerView = AVRoutePickerView()
+        routePickerView.isRoutePickerButtonBordered = false
+        return routePickerView
+    }
+
+    public func updateNSView(_: NSViewType, context _: Context) {}
+    #endif
+}
+#endif
+public extension View {
+    /// Applies the given transform if the given condition evaluates to `true`.
+    /// - Parameters:
+    ///   - condition: The condition to evaluate.
+    ///   - transform: The transform to apply to the source `View`.
+    /// - Returns: Either the original `View` or the modified `View` if the condition is `true`.
+    @ViewBuilder
+    func `if`(_ condition: @autoclosure () -> Bool, transform: (Self) -> some View) -> some View {
+        if condition() {
+            transform(self)
+        } else {
+            self
+        }
+    }
+
+    @ViewBuilder
+    func `if`(_ condition: @autoclosure () -> Bool, if ifTransform: (Self) -> some View, else elseTransform: (Self) -> some View) -> some View {
+        if condition() {
+            ifTransform(self)
+        } else {
+            elseTransform(self)
+        }
+    }
+
+    @ViewBuilder
+    func ifLet<T: Any>(_ optionalValue: T?, transform: (Self, T) -> some View) -> some View {
+        if let value = optionalValue {
+            transform(self, value)
+        } else {
+            self
+        }
+    }
+}
+
+extension Bool {
+    static var iOS16: Bool {
+        guard #available(iOS 16, *) else {
+            return true
+        }
+        return false
+    }
+}

KSPlayer-main/Sources/KSPlayer/SwiftUI/KSVideoPlayerView.swift

@@ -0,0 +1,783 @@
+//
+//  File.swift
+//  KSPlayer
+//
+//  Created by kintan on 2022/1/29.
+//
+import AVFoundation
+import MediaPlayer
+import SwiftUI
+
+@available(iOS 16.0, macOS 13.0, tvOS 16.0, *)
+@MainActor
+public struct KSVideoPlayerView: View {
+    private let subtitleDataSouce: SubtitleDataSouce?
+    @State
+    private var title: String
+    @StateObject
+    private var playerCoordinator: KSVideoPlayer.Coordinator
+    @Environment(\.dismiss)
+    private var dismiss
+    @FocusState
+    private var focusableField: FocusableField? {
+        willSet {
+            isDropdownShow = newValue == .info
+        }
+    }
+
+    public let options: KSOptions
+    @State
+    private var isDropdownShow = false
+    @State
+    private var showVideoSetting = false
+    @State
+    public var url: URL {
+        didSet {
+            #if os(macOS)
+            NSDocumentController.shared.noteNewRecentDocumentURL(url)
+            #endif
+        }
+    }
+
+    public init(url: URL, options: KSOptions, title: String? = nil) {
+        self.init(coordinator: KSVideoPlayer.Coordinator(), url: url, options: options, title: title, subtitleDataSouce: nil)
+    }
+
+    public init(coordinator: KSVideoPlayer.Coordinator, url: URL, options: KSOptions, title: String? = nil, subtitleDataSouce: SubtitleDataSouce? = nil) {
+        self.init(coordinator: coordinator, url: .init(wrappedValue: url), options: options, title: .init(wrappedValue: title ?? url.lastPathComponent), subtitleDataSouce: subtitleDataSouce)
+    }
+
+    public init(coordinator: KSVideoPlayer.Coordinator, url: State<URL>, options: KSOptions, title: State<String>, subtitleDataSouce: SubtitleDataSouce?) {
+        _url = url
+        _playerCoordinator = .init(wrappedValue: coordinator)
+        _title = title
+        #if os(macOS)
+        NSDocumentController.shared.noteNewRecentDocumentURL(url.wrappedValue)
+        #endif
+        self.options = options
+        self.subtitleDataSouce = subtitleDataSouce
+    }
+
+    public var body: some View {
+        ZStack {
+            GeometryReader { proxy in
+                playView
+                HStack {
+                    Spacer()
+                    VideoSubtitleView(model: playerCoordinator.subtitleModel)
+                        .allowsHitTesting(false) // 禁止字幕视图交互，以免抢占视图的点击事件或其它手势事件
+                    Spacer()
+                }
+                .padding()
+                controllerView(playerWidth: proxy.size.width)
+                #if os(tvOS)
+                    .ignoresSafeArea()
+                #endif
+                #if os(tvOS)
+                if isDropdownShow {
+                    VideoSettingView(config: playerCoordinator, subtitleModel: playerCoordinator.subtitleModel, subtitleTitle: title)
+                        .focused($focusableField, equals: .info)
+                }
+                #endif
+            }
+        }
+        .preferredColorScheme(.dark)
+        .tint(.white)
+        .persistentSystemOverlays(.hidden)
+        .toolbar(.hidden, for: .automatic)
+        #if os(tvOS)
+            .onPlayPauseCommand {
+                if playerCoordinator.state.isPlaying {
+                    playerCoordinator.playerLayer?.pause()
+                } else {
+                    playerCoordinator.playerLayer?.play()
+                }
+            }
+            .onExitCommand {
+                if playerCoordinator.isMaskShow {
+                    playerCoordinator.isMaskShow = false
+                } else {
+                    switch focusableField {
+                    case .play:
+                        dismiss()
+                    default:
+                        focusableField = .play
+                    }
+                }
+            }
+        #endif
+    }
+
+    private var playView: some View {
+        KSVideoPlayer(coordinator: playerCoordinator, url: url, options: options)
+            .onStateChanged { playerLayer, state in
+                if state == .readyToPlay {
+                    if let movieTitle = playerLayer.player.dynamicInfo?.metadata["title"] {
+                        title = movieTitle
+                    }
+                }
+            }
+            .onBufferChanged { bufferedCount, consumeTime in
+                print("bufferedCount \(bufferedCount), consumeTime \(consumeTime)")
+            }
+        #if canImport(UIKit)
+            .onSwipe { _ in
+                playerCoordinator.isMaskShow = true
+            }
+        #endif
+            .ignoresSafeArea()
+            .onAppear {
+                focusableField = .play
+                if let subtitleDataSouce {
+                    playerCoordinator.subtitleModel.addSubtitle(dataSouce: subtitleDataSouce)
+                }
+                // 不要加这个，不然playerCoordinator无法释放，也可以在onDisappear调用removeMonitor释放
+                //                    #if os(macOS)
+                //                    NSEvent.addLocalMonitorForEvents(matching: [.mouseMoved]) {
+                //                        isMaskShow = overView
+                //                        return $0
+                //                    }
+                //                    #endif
+            }
+
+        #if os(iOS) || os(xrOS)
+            .navigationBarTitleDisplayMode(.inline)
+        #endif
+        #if !os(iOS)
+            .focusable(!playerCoordinator.isMaskShow)
+        .focused($focusableField, equals: .play)
+        #endif
+        #if !os(xrOS)
+            .onKeyPressLeftArrow {
+            playerCoordinator.skip(interval: -15)
+        }
+        .onKeyPressRightArrow {
+            playerCoordinator.skip(interval: 15)
+        }
+        .onKeyPressSapce {
+            if playerCoordinator.state.isPlaying {
+                playerCoordinator.playerLayer?.pause()
+            } else {
+                playerCoordinator.playerLayer?.play()
+            }
+        }
+        #endif
+        #if os(macOS)
+            .onTapGesture(count: 2) {
+                guard let view = playerCoordinator.playerLayer?.player.view else {
+                    return
+                }
+                view.window?.toggleFullScreen(nil)
+                view.needsLayout = true
+                view.layoutSubtreeIfNeeded()
+        }
+        .onExitCommand {
+            playerCoordinator.playerLayer?.player.view?.exitFullScreenMode()
+        }
+        .onMoveCommand { direction in
+            switch direction {
+            case .left:
+                playerCoordinator.skip(interval: -15)
+            case .right:
+                playerCoordinator.skip(interval: 15)
+            case .up:
+                playerCoordinator.playerLayer?.player.playbackVolume += 0.2
+            case .down:
+                playerCoordinator.playerLayer?.player.playbackVolume -= 0.2
+            @unknown default:
+                break
+            }
+        }
+        #else
+        .onTapGesture {
+                playerCoordinator.isMaskShow.toggle()
+            }
+        #endif
+        #if os(tvOS)
+            .onMoveCommand { direction in
+            switch direction {
+            case .left:
+                playerCoordinator.skip(interval: -15)
+            case .right:
+                playerCoordinator.skip(interval: 15)
+            case .up:
+                playerCoordinator.mask(show: true, autoHide: false)
+            case .down:
+                focusableField = .info
+            @unknown default:
+                break
+            }
+        }
+        #else
+        .onHover { _ in
+                playerCoordinator.isMaskShow = true
+            }
+            .onDrop(of: ["public.file-url"], isTargeted: nil) { providers -> Bool in
+                providers.first?.loadDataRepresentation(forTypeIdentifier: "public.file-url") { data, _ in
+                    if let data, let path = NSString(data: data, encoding: 4), let url = URL(string: path as String) {
+                        openURL(url)
+                    }
+                }
+                return true
+            }
+        #endif
+    }
+
+    private func controllerView(playerWidth: Double) -> some View {
+        VStack {
+            VideoControllerView(config: playerCoordinator, subtitleModel: playerCoordinator.subtitleModel, title: $title, volumeSliderSize: playerWidth / 4)
+            #if !os(xrOS)
+            // 设置opacity为0，还是会去更新View。所以只能这样了
+            if playerCoordinator.isMaskShow {
+                VideoTimeShowView(config: playerCoordinator, model: playerCoordinator.timemodel)
+                    .onAppear {
+                        focusableField = .controller
+                    }
+                    .onDisappear {
+                        focusableField = .play
+                    }
+            }
+            #endif
+        }
+        #if os(xrOS)
+        .ornament(visibility: playerCoordinator.isMaskShow ? .visible : .hidden, attachmentAnchor: .scene(.bottom)) {
+            ornamentView(playerWidth: playerWidth)
+        }
+        .sheet(isPresented: $showVideoSetting) {
+            NavigationStack {
+                VideoSettingView(config: playerCoordinator, subtitleModel: playerCoordinator.subtitleModel, subtitleTitle: title)
+            }
+            .buttonStyle(.plain)
+        }
+        #elseif os(tvOS)
+        .padding(.horizontal, 80)
+        .padding(.bottom, 80)
+        .background(overlayGradient)
+        #endif
+        .focused($focusableField, equals: .controller)
+        .opacity(playerCoordinator.isMaskShow ? 1 : 0)
+        .padding()
+    }
+
+    private let overlayGradient = LinearGradient(
+        stops: [
+            Gradient.Stop(color: .black.opacity(0), location: 0.22),
+            Gradient.Stop(color: .black.opacity(0.7), location: 1),
+        ],
+        startPoint: .top,
+        endPoint: .bottom
+    )
+    private func ornamentView(playerWidth: Double) -> some View {
+        VStack(alignment: .leading) {
+            KSVideoPlayerViewBuilder.titleView(title: title, config: playerCoordinator)
+            ornamentControlsView(playerWidth: playerWidth)
+        }
+        .frame(width: playerWidth / 1.5)
+        .buttonStyle(.plain)
+        .padding(.vertical, 24)
+        .padding(.horizontal, 36)
+        #if os(xrOS)
+            .glassBackgroundEffect()
+        #endif
+    }
+
+    private func ornamentControlsView(playerWidth _: Double) -> some View {
+        HStack {
+            KSVideoPlayerViewBuilder.playbackControlView(config: playerCoordinator, spacing: 16)
+            Spacer()
+            VideoTimeShowView(config: playerCoordinator, model: playerCoordinator.timemodel, timeFont: .title3.monospacedDigit())
+            Spacer()
+            Group {
+                KSVideoPlayerViewBuilder.contentModeButton(config: playerCoordinator)
+                KSVideoPlayerViewBuilder.subtitleButton(config: playerCoordinator)
+                KSVideoPlayerViewBuilder.playbackRateButton(playbackRate: $playerCoordinator.playbackRate)
+                KSVideoPlayerViewBuilder.infoButton(showVideoSetting: $showVideoSetting)
+            }
+            .font(.largeTitle)
+        }
+    }
+
+    fileprivate enum FocusableField {
+        case play, controller, info
+    }
+
+    public func openURL(_ url: URL) {
+        runOnMainThread {
+            if url.isSubtitle {
+                let info = URLSubtitleInfo(url: url)
+                playerCoordinator.subtitleModel.selectedSubtitleInfo = info
+            } else if url.isAudio || url.isMovie {
+                self.url = url
+                title = url.lastPathComponent
+            }
+        }
+    }
+}
+
+extension View {
+    func onKeyPressLeftArrow(action: @escaping () -> Void) -> some View {
+        if #available(iOS 17.0, macOS 14.0, tvOS 17.0, *) {
+            return onKeyPress(.leftArrow) {
+                action()
+                return .handled
+            }
+        } else {
+            return self
+        }
+    }
+
+    func onKeyPressRightArrow(action: @escaping () -> Void) -> some View {
+        if #available(iOS 17.0, macOS 14.0, tvOS 17.0, *) {
+            return onKeyPress(.rightArrow) {
+                action()
+                return .handled
+            }
+        } else {
+            return self
+        }
+    }
+
+    func onKeyPressSapce(action: @escaping () -> Void) -> some View {
+        if #available(iOS 17.0, macOS 14.0, tvOS 17.0, *) {
+            return onKeyPress(.space) {
+                action()
+                return .handled
+            }
+        } else {
+            return self
+        }
+    }
+}
+
+@available(iOS 16, tvOS 16, macOS 13, *)
+struct VideoControllerView: View {
+    @ObservedObject
+    fileprivate var config: KSVideoPlayer.Coordinator
+    @ObservedObject
+    fileprivate var subtitleModel: SubtitleModel
+    @Binding
+    fileprivate var title: String
+    fileprivate var volumeSliderSize: Double?
+    @State
+    private var showVideoSetting = false
+    @Environment(\.dismiss)
+    private var dismiss
+    public var body: some View {
+        VStack {
+            #if os(tvOS)
+            Spacer()
+            HStack {
+                Text(title)
+                    .lineLimit(2)
+                    .layoutPriority(3)
+                ProgressView()
+                    .opacity(config.state == .buffering ? 1 : 0)
+                Spacer()
+                    .layoutPriority(2)
+                HStack {
+                    Button {
+                        if config.state.isPlaying {
+                            config.playerLayer?.pause()
+                        } else {
+                            config.playerLayer?.play()
+                        }
+                    } label: {
+                        Image(systemName: config.state == .error ? "play.slash.fill" : (config.state.isPlaying ? "pause.circle.fill" : "play.circle.fill"))
+                    }
+                    .frame(width: 56)
+                    if let audioTracks = config.playerLayer?.player.tracks(mediaType: .audio), !audioTracks.isEmpty {
+                        audioButton(audioTracks: audioTracks)
+                    }
+                    muteButton
+                        .frame(width: 56)
+                    contentModeButton
+                        .frame(width: 56)
+                    subtitleButton
+                    playbackRateButton
+                    pipButton
+                        .frame(width: 56)
+                    infoButton
+                        .frame(width: 56)
+                }
+                .font(.caption)
+            }
+            #else
+            HStack {
+                #if !os(xrOS)
+                Button {
+                    dismiss()
+                } label: {
+                    Image(systemName: "x.circle.fill")
+                }
+                #if !os(tvOS)
+                if config.playerLayer?.player.allowsExternalPlayback == true {
+                    AirPlayView().fixedSize()
+                }
+                #endif
+                #endif
+                Spacer()
+                if let audioTracks = config.playerLayer?.player.tracks(mediaType: .audio), !audioTracks.isEmpty {
+                    audioButton(audioTracks: audioTracks)
+                    #if os(xrOS)
+                        .aspectRatio(1, contentMode: .fit)
+                        .glassBackgroundEffect()
+                    #endif
+                }
+                muteButton
+                #if !os(xrOS)
+                contentModeButton
+                subtitleButton
+                #endif
+            }
+            Spacer()
+            #if !os(xrOS)
+            KSVideoPlayerViewBuilder.playbackControlView(config: config)
+            Spacer()
+            HStack {
+                KSVideoPlayerViewBuilder.titleView(title: title, config: config)
+                Spacer()
+                playbackRateButton
+                pipButton
+                infoButton
+            }
+            #endif
+            #endif
+        }
+        #if !os(tvOS)
+        .font(.title)
+        .buttonStyle(.borderless)
+        #endif
+        .sheet(isPresented: $showVideoSetting) {
+            VideoSettingView(config: config, subtitleModel: config.subtitleModel, subtitleTitle: title)
+        }
+    }
+
+    private var muteButton: some View {
+        #if os(xrOS)
+        HStack {
+            Slider(value: $config.playbackVolume, in: 0 ... 1)
+                .onChange(of: config.playbackVolume) { _, newValue in
+                    config.isMuted = newValue == 0
+                }
+                .frame(width: volumeSliderSize ?? 100)
+                .tint(.white.opacity(0.8))
+                .padding(.leading, 16)
+            KSVideoPlayerViewBuilder.muteButton(config: config)
+        }
+        .padding(16)
+        .glassBackgroundEffect()
+        #else
+        KSVideoPlayerViewBuilder.muteButton(config: config)
+        #endif
+    }
+
+    private var contentModeButton: some View {
+        KSVideoPlayerViewBuilder.contentModeButton(config: config)
+    }
+
+    private func audioButton(audioTracks: [MediaPlayerTrack]) -> some View {
+        MenuView(selection: Binding {
+            audioTracks.first { $0.isEnabled }?.trackID
+        } set: { value in
+            if let track = audioTracks.first(where: { $0.trackID == value }) {
+                config.playerLayer?.player.select(track: track)
+            }
+        }) {
+            ForEach(audioTracks, id: \.trackID) { track in
+                Text(track.description).tag(track.trackID as Int32?)
+            }
+        } label: {
+            Image(systemName: "waveform.circle.fill")
+            #if os(xrOS)
+                .padding()
+                .clipShape(Circle())
+            #endif
+        }
+    }
+
+    private var subtitleButton: some View {
+        KSVideoPlayerViewBuilder.subtitleButton(config: config)
+    }
+
+    private var playbackRateButton: some View {
+        KSVideoPlayerViewBuilder.playbackRateButton(playbackRate: $config.playbackRate)
+    }
+
+    private var pipButton: some View {
+        Button {
+            config.playerLayer?.isPipActive.toggle()
+        } label: {
+            Image(systemName: "rectangle.on.rectangle.circle.fill")
+        }
+    }
+
+    private var infoButton: some View {
+        KSVideoPlayerViewBuilder.infoButton(showVideoSetting: $showVideoSetting)
+    }
+}
+
+@available(iOS 15, tvOS 16, macOS 12, *)
+public struct MenuView<Label, SelectionValue, Content>: View where Label: View, SelectionValue: Hashable, Content: View {
+    public let selection: Binding<SelectionValue>
+    @ViewBuilder
+    public let content: () -> Content
+    @ViewBuilder
+    public let label: () -> Label
+    @State
+    private var showMenu = false
+    public var body: some View {
+        if #available(tvOS 17, *) {
+            Menu {
+                Picker(selection: selection) {
+                    content()
+                } label: {
+                    EmptyView()
+                }
+                .pickerStyle(.inline)
+            } label: {
+                label()
+            }
+            .menuIndicator(.hidden)
+        } else {
+            Picker(selection: selection, content: content, label: label)
+            #if !os(macOS)
+                .pickerStyle(.navigationLink)
+            #endif
+                .frame(height: 50)
+            #if os(tvOS)
+                .frame(width: 110)
+            #endif
+        }
+    }
+}
+
+@available(iOS 15, tvOS 15, macOS 12, *)
+struct VideoTimeShowView: View {
+    @ObservedObject
+    fileprivate var config: KSVideoPlayer.Coordinator
+    @ObservedObject
+    fileprivate var model: ControllerTimeModel
+    fileprivate var timeFont: Font?
+    public var body: some View {
+        if config.playerLayer?.player.seekable ?? false {
+            HStack {
+                Text(model.currentTime.toString(for: .minOrHour)).font(timeFont ?? .caption2.monospacedDigit())
+                Slider(value: Binding {
+                    Float(model.currentTime)
+                } set: { newValue, _ in
+                    model.currentTime = Int(newValue)
+                }, in: 0 ... Float(model.totalTime)) { onEditingChanged in
+                    if onEditingChanged {
+                        config.playerLayer?.pause()
+                    } else {
+                        config.seek(time: TimeInterval(model.currentTime))
+                    }
+                }
+                .frame(maxHeight: 20)
+                #if os(xrOS)
+                    .tint(.white.opacity(0.8))
+                #endif
+                Text((model.totalTime).toString(for: .minOrHour)).font(timeFont ?? .caption2.monospacedDigit())
+            }
+            .font(.system(.title2))
+        } else {
+            Text("Live Streaming")
+        }
+    }
+}
+
+extension EventModifiers {
+    static let none = Self()
+}
+
+@available(iOS 16, tvOS 16, macOS 13, *)
+struct VideoSubtitleView: View {
+    @ObservedObject
+    fileprivate var model: SubtitleModel
+    var body: some View {
+        ZStack {
+            ForEach(model.parts) { part in
+                part.subtitleView
+            }
+        }
+    }
+
+    fileprivate static func imageView(_ image: UIImage) -> some View {
+        #if enableFeatureLiveText && canImport(VisionKit) && !targetEnvironment(simulator)
+        if #available(macCatalyst 17.0, *) {
+            return LiveTextImage(uiImage: image)
+        } else {
+            return Image(uiImage: image)
+                .resizable()
+        }
+        #else
+        return Image(uiImage: image)
+            .resizable()
+        #endif
+    }
+}
+
+private extension SubtitlePart {
+    @available(iOS 16, tvOS 16, macOS 13, *)
+    @MainActor
+    var subtitleView: some View {
+        VStack {
+            if let image {
+                Spacer()
+                GeometryReader { geometry in
+                    let fitRect = image.fitRect(geometry.size)
+                    VideoSubtitleView.imageView(image)
+                        .offset(CGSize(width: fitRect.origin.x, height: fitRect.origin.y))
+                        .frame(width: fitRect.size.width, height: fitRect.size.height)
+                }
+                // 不能加scaledToFit。不然的话图片的缩放比率会有问题。
+//                .scaledToFit()
+                .padding()
+            } else if let text {
+                let textPosition = textPosition ?? SubtitleModel.textPosition
+                if textPosition.verticalAlign == .bottom || textPosition.verticalAlign == .center {
+                    Spacer()
+                }
+                Text(AttributedString(text))
+                    .font(Font(SubtitleModel.textFont))
+                    .shadow(color: .black.opacity(0.9), radius: 1, x: 1, y: 1)
+                    .foregroundColor(SubtitleModel.textColor)
+                    .italic(SubtitleModel.textItalic)
+                    .background(SubtitleModel.textBackgroundColor)
+                    .multilineTextAlignment(.center)
+                    .alignmentGuide(textPosition.horizontalAlign) {
+                        $0[.leading]
+                    }
+                    .padding(textPosition.edgeInsets)
+                #if !os(tvOS)
+                    .textSelection(.enabled)
+                #endif
+                if textPosition.verticalAlign == .top || textPosition.verticalAlign == .center {
+                    Spacer()
+                }
+            } else {
+                // 需要加这个，不然图片无法清空。感觉是 swiftUI的bug。
+                Text("")
+            }
+        }
+    }
+}
+
+@available(iOS 16, tvOS 16, macOS 13, *)
+struct VideoSettingView: View {
+    @ObservedObject
+    fileprivate var config: KSVideoPlayer.Coordinator
+    @ObservedObject
+    fileprivate var subtitleModel: SubtitleModel
+    @State
+    fileprivate var subtitleTitle: String
+    @Environment(\.dismiss)
+    private var dismiss
+
+    var body: some View {
+        PlatformView {
+            let videoTracks = config.playerLayer?.player.tracks(mediaType: .video)
+            if let videoTracks, !videoTracks.isEmpty {
+                Picker(selection: Binding {
+                    videoTracks.first { $0.isEnabled }?.trackID
+                } set: { value in
+                    if let track = videoTracks.first(where: { $0.trackID == value }) {
+                        config.playerLayer?.player.select(track: track)
+                    }
+                }) {
+                    ForEach(videoTracks, id: \.trackID) { track in
+                        Text(track.description).tag(track.trackID as Int32?)
+                    }
+                } label: {
+                    Label("Video Track", systemImage: "video.fill")
+                }
+                LabeledContent("Video Type", value: (videoTracks.first { $0.isEnabled }?.dynamicRange ?? .sdr).description)
+            }
+            TextField("Sutitle delay", value: $subtitleModel.subtitleDelay, format: .number)
+            TextField("Title", text: $subtitleTitle)
+            Button("Search Sutitle") {
+                subtitleModel.searchSubtitle(query: subtitleTitle, languages: ["zh-cn"])
+            }
+            LabeledContent("Stream Type", value: (videoTracks?.first { $0.isEnabled }?.fieldOrder ?? .progressive).description)
+            if let dynamicInfo = config.playerLayer?.player.dynamicInfo {
+                DynamicInfoView(dynamicInfo: dynamicInfo)
+            }
+            if let fileSize = config.playerLayer?.player.fileSize, fileSize > 0 {
+                LabeledContent("File Size", value: fileSize.kmFormatted + "B")
+            }
+        }
+        #if os(macOS) || targetEnvironment(macCatalyst) || os(xrOS)
+        .toolbar {
+            Button("Done") {
+                dismiss()
+            }
+            .keyboardShortcut(.defaultAction)
+        }
+        #endif
+    }
+}
+
+@available(iOS 16, tvOS 16, macOS 13, *)
+public struct DynamicInfoView: View {
+    @ObservedObject
+    fileprivate var dynamicInfo: DynamicInfo
+    public var body: some View {
+        LabeledContent("Display FPS", value: dynamicInfo.displayFPS, format: .number)
+        LabeledContent("Audio Video sync", value: dynamicInfo.audioVideoSyncDiff, format: .number)
+        LabeledContent("Dropped Frames", value: dynamicInfo.droppedVideoFrameCount + dynamicInfo.droppedVideoPacketCount, format: .number)
+        LabeledContent("Bytes Read", value: dynamicInfo.bytesRead.kmFormatted + "B")
+        LabeledContent("Audio bitrate", value: dynamicInfo.audioBitrate.kmFormatted + "bps")
+        LabeledContent("Video bitrate", value: dynamicInfo.videoBitrate.kmFormatted + "bps")
+    }
+}
+
+@available(iOS 15, tvOS 16, macOS 12, *)
+public struct PlatformView<Content: View>: View {
+    private let content: () -> Content
+    public var body: some View {
+        #if os(tvOS)
+        ScrollView {
+            content()
+                .padding()
+        }
+        .pickerStyle(.navigationLink)
+        #else
+        Form {
+            content()
+        }
+        #if os(macOS)
+        .padding()
+        #endif
+        #endif
+    }
+
+    public init(@ViewBuilder content: @escaping () -> Content) {
+        self.content = content
+    }
+}
+
+@available(iOS 16.0, macOS 13.0, tvOS 16.0, watchOS 9.0, *)
+struct KSVideoPlayerView_Previews: PreviewProvider {
+    static var previews: some View {
+        let url = URL(string: "http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4")!
+        KSVideoPlayerView(coordinator: KSVideoPlayer.Coordinator(), url: url, options: KSOptions())
+    }
+}
+
+// struct AVContentView: View {
+//    var body: some View {
+//        StructAVPlayerView().frame(width: UIScene.main.bounds.width, height: 400, alignment: .center)
+//    }
+// }
+//
+// struct StructAVPlayerView: UIViewRepresentable {
+//    let playerVC = AVPlayerViewController()
+//    typealias UIViewType = UIView
+//    func makeUIView(context _: Context) -> UIView {
+//        playerVC.view
+//    }
+//
+//    func updateUIView(_: UIView, context _: Context) {
+//        playerVC.player = AVPlayer(url: URL(string: "https://bitmovin-a.akamaihd.net/content/dataset/multi-codec/hevc/stream_fmp4.m3u8")!)
+//    }
+// }

KSPlayer-main/Sources/KSPlayer/SwiftUI/KSVideoPlayerViewBuilder.swift

@@ -0,0 +1,193 @@
+//
+//  KSVideoPlayerViewBuilder.swift
+//
+//
+//  Created by Ian Magallan Bosch on 17.03.24.
+//
+
+import SwiftUI
+
+@available(iOS 16.0, macOS 13.0, tvOS 16.0, *)
+enum KSVideoPlayerViewBuilder {
+    @MainActor
+    static func playbackControlView(config: KSVideoPlayer.Coordinator, spacing: CGFloat? = nil) -> some View {
+        HStack(spacing: spacing) {
+            // Playback controls don't need spacers for visionOS, since the controls are laid out in a HStack.
+            #if os(xrOS)
+            backwardButton(config: config)
+            playButton(config: config)
+            forwardButton(config: config)
+            #else
+            Spacer()
+            backwardButton(config: config)
+            Spacer()
+            playButton(config: config)
+            Spacer()
+            forwardButton(config: config)
+            Spacer()
+            #endif
+        }
+    }
+
+    @MainActor
+    static func contentModeButton(config: KSVideoPlayer.Coordinator) -> some View {
+        Button {
+            config.isScaleAspectFill.toggle()
+        } label: {
+            Image(systemName: config.isScaleAspectFill ? "rectangle.arrowtriangle.2.inward" : "rectangle.arrowtriangle.2.outward")
+        }
+    }
+
+    @MainActor
+    static func subtitleButton(config: KSVideoPlayer.Coordinator) -> some View {
+        MenuView(selection: Binding {
+            config.subtitleModel.selectedSubtitleInfo?.subtitleID
+        } set: { value in
+            let info = config.subtitleModel.subtitleInfos.first { $0.subtitleID == value }
+            config.subtitleModel.selectedSubtitleInfo = info
+            if let info = info as? MediaPlayerTrack {
+                // 因为图片字幕想要实时的显示，那就需要seek。所以需要走select track
+                config.playerLayer?.player.select(track: info)
+            }
+        }) {
+            Text("Off").tag(nil as String?)
+            ForEach(config.subtitleModel.subtitleInfos, id: \.subtitleID) { track in
+                Text(track.name).tag(track.subtitleID as String?)
+            }
+        } label: {
+            Image(systemName: "text.bubble.fill")
+        }
+    }
+
+    @MainActor
+    static func playbackRateButton(playbackRate: Binding<Float>) -> some View {
+        MenuView(selection: playbackRate) {
+            ForEach([0.5, 1.0, 1.25, 1.5, 2.0] as [Float]) { value in
+                // 需要有一个变量text。不然会自动帮忙加很多0
+                let text = "\(value) x"
+                Text(text).tag(value)
+            }
+        } label: {
+            Image(systemName: "gauge.with.dots.needle.67percent")
+        }
+    }
+
+    @MainActor
+    static func titleView(title: String, config: KSVideoPlayer.Coordinator) -> some View {
+        HStack {
+            Text(title)
+                .font(.title3)
+            ProgressView()
+                .opacity(config.state == .buffering ? 1 : 0)
+        }
+    }
+
+    @MainActor
+    static func muteButton(config: KSVideoPlayer.Coordinator) -> some View {
+        Button {
+            config.isMuted.toggle()
+        } label: {
+            Image(systemName: config.isMuted ? speakerDisabledSystemName : speakerSystemName)
+        }
+        .shadow(color: .black, radius: 1)
+    }
+
+    static func infoButton(showVideoSetting: Binding<Bool>) -> some View {
+        Button {
+            showVideoSetting.wrappedValue.toggle()
+        } label: {
+            Image(systemName: "info.circle.fill")
+        }
+        // iOS 模拟器加keyboardShortcut会导致KSVideoPlayer.Coordinator无法释放。真机不会有这个问题
+        #if !os(tvOS)
+        .keyboardShortcut("i", modifiers: [.command])
+        #endif
+    }
+}
+
+@available(iOS 16.0, macOS 13.0, tvOS 16.0, *)
+private extension KSVideoPlayerViewBuilder {
+    static var playSystemName: String {
+        #if os(xrOS)
+        "play.fill"
+        #else
+        "play.circle.fill"
+        #endif
+    }
+
+    static var pauseSystemName: String {
+        #if os(xrOS)
+        "pause.fill"
+        #else
+        "pause.circle.fill"
+        #endif
+    }
+
+    static var speakerSystemName: String {
+        #if os(xrOS)
+        "speaker.fill"
+        #else
+        "speaker.wave.2.circle.fill"
+        #endif
+    }
+
+    static var speakerDisabledSystemName: String {
+        #if os(xrOS)
+        "speaker.slash.fill"
+        #else
+        "speaker.slash.circle.fill"
+        #endif
+    }
+
+    @MainActor
+    @ViewBuilder
+    static func backwardButton(config: KSVideoPlayer.Coordinator) -> some View {
+        if config.playerLayer?.player.seekable ?? false {
+            Button {
+                config.skip(interval: -15)
+            } label: {
+                Image(systemName: "gobackward.15")
+                    .font(.largeTitle)
+            }
+            #if !os(tvOS)
+            .keyboardShortcut(.leftArrow, modifiers: .none)
+            #endif
+        }
+    }
+
+    @MainActor
+    @ViewBuilder
+    static func forwardButton(config: KSVideoPlayer.Coordinator) -> some View {
+        if config.playerLayer?.player.seekable ?? false {
+            Button {
+                config.skip(interval: 15)
+            } label: {
+                Image(systemName: "goforward.15")
+                    .font(.largeTitle)
+            }
+            #if !os(tvOS)
+            .keyboardShortcut(.rightArrow, modifiers: .none)
+            #endif
+        }
+    }
+
+    @MainActor
+    static func playButton(config: KSVideoPlayer.Coordinator) -> some View {
+        Button {
+            if config.state.isPlaying {
+                config.playerLayer?.pause()
+            } else {
+                config.playerLayer?.play()
+            }
+        } label: {
+            Image(systemName: config.state == .error ? "play.slash.fill" : (config.state.isPlaying ? pauseSystemName : playSystemName))
+                .font(.largeTitle)
+        }
+        #if os(xrOS)
+        .contentTransition(.symbolEffect(.replace))
+        #endif
+        #if !os(tvOS)
+        .keyboardShortcut(.space, modifiers: .none)
+        #endif
+    }
+}

KSPlayer-main/Sources/KSPlayer/SwiftUI/LiveTextImage.swift

@@ -0,0 +1,91 @@
+//
+//  LiveTextImage.swift
+//  KSPlayer
+//
+//  Created by kintan on 2023/5/4.
+//
+
+import SwiftUI
+#if canImport(VisionKit)
+import VisionKit
+
+@available(iOS 16.0, macOS 13.0, macCatalyst 17.0, *)
+@MainActor
+public struct LiveTextImage: UIViewRepresentable {
+    public let uiImage: UIImage
+    private let analyzer = ImageAnalyzer()
+    #if canImport(UIKit)
+    public typealias UIViewType = UIImageView
+    private let interaction = ImageAnalysisInteraction()
+    public init(uiImage: UIImage) {
+        self.uiImage = uiImage
+    }
+
+    public func makeUIView(context _: Context) -> UIViewType {
+        let imageView = LiveTextImageView()
+        imageView.addInteraction(interaction)
+        return imageView
+    }
+
+    public func updateUIView(_ view: UIViewType, context _: Context) {
+        updateView(view)
+    }
+    #else
+    public typealias NSViewType = UIImageView
+    @MainActor
+    private let interaction = ImageAnalysisOverlayView()
+    public func makeNSView(context _: Context) -> NSViewType {
+        let imageView = LiveTextImageView()
+        interaction.autoresizingMask = [.width, .height]
+        interaction.frame = imageView.bounds
+        interaction.trackingImageView = imageView
+        imageView.addSubview(interaction)
+        return imageView
+    }
+
+    public func updateNSView(_ view: NSViewType, context _: Context) {
+        updateView(view)
+    }
+    #endif
+    @MainActor
+    private func updateView(_ view: UIImageView) {
+        view.image = uiImage
+        view.sizeToFit()
+        let image = uiImage
+        Task { @MainActor in
+            do {
+                let configuration = ImageAnalyzer.Configuration([.text])
+                let analysis = try await analyzer.analyze(image, orientation: .up, configuration: configuration)
+                interaction.preferredInteractionTypes = .textSelection
+                interaction.analysis = analysis
+            } catch {
+                print(error.localizedDescription)
+            }
+        }
+    }
+}
+#endif
+
+#if os(macOS)
+public extension Image {
+    init(uiImage: UIImage) {
+        self.init(nsImage: uiImage)
+    }
+}
+#endif
+
+public extension UIImage {
+    func fitRect(_ fitSize: CGSize) -> CGRect {
+        let hZoom = fitSize.width / size.width
+        let vZoom = fitSize.height / size.height
+        let zoom = min(min(hZoom, vZoom), 1)
+        let newSize = size * zoom
+        return CGRect(origin: CGPoint(x: (fitSize.width - newSize.width) / 2, y: fitSize.height - newSize.height), size: newSize)
+    }
+}
+
+class LiveTextImageView: UIImageView {
+    override var intrinsicContentSize: CGSize {
+        .zero
+    }
+}

KSPlayer-main/Sources/KSPlayer/SwiftUI/Slider.swift

@@ -0,0 +1,171 @@
+//
+//  Slider.swift
+//  KSPlayer
+//
+//  Created by kintan on 2023/5/4.
+//
+
+import SwiftUI
+
+#if os(tvOS)
+import Combine
+
+@available(tvOS 15.0, *)
+public struct Slider: View {
+    private let value: Binding<Float>
+    private let bounds: ClosedRange<Float>
+    private let onEditingChanged: (Bool) -> Void
+    @FocusState
+    private var isFocused: Bool
+    public init(value: Binding<Float>, in bounds: ClosedRange<Float> = 0 ... 1, onEditingChanged: @escaping (Bool) -> Void = { _ in }) {
+        self.value = value
+        self.bounds = bounds
+        self.onEditingChanged = onEditingChanged
+    }
+
+    public var body: some View {
+        TVOSSlide(value: value, bounds: bounds, isFocused: _isFocused, onEditingChanged: onEditingChanged)
+            .focused($isFocused)
+    }
+}
+
+@available(tvOS 15.0, *)
+public struct TVOSSlide: UIViewRepresentable {
+    fileprivate let value: Binding<Float>
+    fileprivate let bounds: ClosedRange<Float>
+    @FocusState
+    public var isFocused: Bool
+    public let onEditingChanged: (Bool) -> Void
+    public typealias UIViewType = TVSlide
+    public func makeUIView(context _: Context) -> UIViewType {
+        TVSlide(value: value, bounds: bounds, onEditingChanged: onEditingChanged)
+    }
+
+    public func updateUIView(_ view: UIViewType, context _: Context) {
+        if isFocused {
+            if view.processView.tintColor == .white {
+                view.processView.tintColor = .red
+            }
+        } else {
+            view.processView.tintColor = .white
+        }
+        // 要加这个才会触发进度条更新
+        let process = (value.wrappedValue - bounds.lowerBound) / (bounds.upperBound - bounds.lowerBound)
+        if process != view.processView.progress {
+            view.processView.progress = process
+        }
+    }
+}
+
+public class TVSlide: UIControl {
+    fileprivate let processView = UIProgressView()
+    private var beganValue = Float(0.0)
+    private let onEditingChanged: (Bool) -> Void
+    fileprivate var value: Binding<Float>
+    fileprivate let ranges: ClosedRange<Float>
+    private var moveDirection: UISwipeGestureRecognizer.Direction?
+    private var pressTime = CACurrentMediaTime()
+    private var delayItem: DispatchWorkItem?
+
+    private lazy var timer: Timer = .scheduledTimer(withTimeInterval: 0.15, repeats: true) { [weak self] _ in
+        guard let self, let moveDirection = self.moveDirection else {
+            return
+        }
+        let rate = min(10, Int((CACurrentMediaTime() - self.pressTime) / 2) + 1)
+        let wrappedValue = self.value.wrappedValue + Float((moveDirection == .right ? 10 : -10) * rate)
+        if wrappedValue >= self.ranges.lowerBound, wrappedValue <= self.ranges.upperBound {
+            self.value.wrappedValue = wrappedValue
+        }
+        self.onEditingChanged(true)
+    }
+
+    public init(value: Binding<Float>, bounds: ClosedRange<Float>, onEditingChanged: @escaping (Bool) -> Void) {
+        self.value = value
+        ranges = bounds
+        self.onEditingChanged = onEditingChanged
+        super.init(frame: .zero)
+        processView.translatesAutoresizingMaskIntoConstraints = false
+        processView.tintColor = .white
+        addSubview(processView)
+        NSLayoutConstraint.activate([
+            processView.topAnchor.constraint(equalTo: topAnchor),
+            processView.leadingAnchor.constraint(equalTo: leadingAnchor),
+            processView.trailingAnchor.constraint(equalTo: trailingAnchor),
+            processView.bottomAnchor.constraint(equalTo: bottomAnchor),
+        ])
+        let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(actionPanGesture(sender:)))
+        addGestureRecognizer(panGestureRecognizer)
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override open func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        guard let presse = presses.first else {
+            return
+        }
+        delayItem?.cancel()
+        delayItem = nil
+        switch presse.type {
+        case .leftArrow:
+            moveDirection = .left
+            pressTime = CACurrentMediaTime()
+            timer.fireDate = Date.distantPast
+        case .rightArrow:
+            moveDirection = .right
+            pressTime = CACurrentMediaTime()
+            timer.fireDate = Date.distantPast
+        case .select:
+            timer.fireDate = Date.distantFuture
+            onEditingChanged(false)
+        default: super.pressesBegan(presses, with: event)
+        }
+    }
+
+    override open func pressesEnded(_ presses: Set<UIPress>, with _: UIPressesEvent?) {
+        timer.fireDate = Date.distantFuture
+        guard let presse = presses.first, presse.type == .leftArrow || presse.type == .rightArrow else {
+            return
+        }
+        delayItem = DispatchWorkItem { [weak self] in
+            guard let self else { return }
+            self.onEditingChanged(false)
+        }
+        DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 1.5,
+                                      execute: delayItem!)
+    }
+
+    @objc private func actionPanGesture(sender: UIPanGestureRecognizer) {
+        let translation = sender.translation(in: self)
+        if abs(translation.y) > abs(translation.x) {
+            return
+        }
+        switch sender.state {
+        case .began, .possible:
+            delayItem?.cancel()
+            delayItem = nil
+            beganValue = value.wrappedValue
+        case .changed:
+            let wrappedValue = beganValue + Float(translation.x) / Float(frame.size.width) * (ranges.upperBound - ranges.lowerBound) / 5
+            if wrappedValue <= ranges.upperBound, wrappedValue >= ranges.lowerBound {
+                value.wrappedValue = wrappedValue
+                onEditingChanged(true)
+            }
+        case .ended:
+            delayItem = DispatchWorkItem { [weak self] in
+                guard let self else { return }
+                self.onEditingChanged(false)
+            }
+            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 1.5,
+                                          execute: delayItem!)
+        case .cancelled, .failed:
+//            value.wrappedValue = beganValue
+            break
+        @unknown default:
+            break
+        }
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Video/BrightnessVolume.swift

@@ -0,0 +1,225 @@
+//
+//  BrightnessVolume.swift
+//  KSPlayer
+//
+//  Created by kintan on 2017/11/3.
+//
+#if canImport(UIKit)
+import UIKit
+
+@MainActor
+open class BrightnessVolume {
+    private var brightnessObservation: NSKeyValueObservation?
+    public static let shared = BrightnessVolume()
+    public var progressView: BrightnessVolumeViewProtocol & UIView = ProgressView()
+    init() {
+        #if !os(tvOS) && !os(xrOS)
+        brightnessObservation = UIScreen.main.observe(\.brightness, options: .new) { [weak self] _, change in
+            guard KSOptions.enableBrightnessGestures else { return }
+            if let self, let value = change.newValue {
+                self.appearView()
+                self.progressView.setProgress(Float(value), type: 0)
+            }
+        }
+        #endif
+        let name = NSNotification.Name(rawValue: "AVSystemController_SystemVolumeDidChangeNotification")
+        NotificationCenter.default.addObserver(self, selector: #selector(volumeIsChanged(notification:)), name: name, object: nil)
+        progressView.alpha = 0.0
+    }
+
+    public func move(to view: UIView) {
+        progressView.move(to: view)
+    }
+
+    @objc private func volumeIsChanged(notification: NSNotification) {
+        guard KSOptions.enableVolumeGestures else { return }
+        if let changeReason = notification.userInfo?["AVSystemController_AudioVolumeChangeReasonNotificationParameter"] as? String, changeReason == "ExplicitVolumeChange" {
+            if let volume = notification.userInfo?["AVSystemController_AudioVolumeNotificationParameter"] as? CGFloat {
+                appearView()
+                progressView.setProgress(Float(volume), type: 1)
+            }
+        }
+    }
+
+    private func appearView() {
+        if progressView.alpha == 0.0 {
+            progressView.alpha = 1.0
+            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 3) { [weak self] () in
+                self?.disAppearView()
+            }
+        }
+    }
+
+    private func disAppearView() {
+        if progressView.alpha == 1.0 {
+            UIView.animate(withDuration: 0.8) { [weak self] () in
+                self?.progressView.alpha = 0.0
+            }
+        }
+    }
+
+    deinit {
+        brightnessObservation?.invalidate()
+    }
+}
+
+public protocol BrightnessVolumeViewProtocol {
+    // type: 0 brightness type: 1 volume
+    func setProgress(_ progress: Float, type: UInt)
+    func move(to view: UIView)
+}
+
+private final class SystemView: UIVisualEffectView {
+    private let stackView = UIStackView()
+    private let imageView = UIImageView()
+    private let titleLabel = UILabel()
+    private lazy var brightnessImage = UIImage(systemName: "sun.max")
+    private lazy var volumeImage = UIImage(systemName: "speaker.wave.3.fill")
+    private convenience init() {
+        self.init(effect: UIBlurEffect(style: .extraLight))
+        clipsToBounds = true
+        cornerRadius = 10
+        imageView.image = brightnessImage
+        contentView.addSubview(imageView)
+        titleLabel.font = .systemFont(ofSize: 16)
+        titleLabel.textColor = UIColor(red: 0.25, green: 0.22, blue: 0.21, alpha: 1)
+        titleLabel.textAlignment = .center
+        titleLabel.text = "亮度"
+        contentView.addSubview(titleLabel)
+        let longView = UIView()
+        longView.backgroundColor = titleLabel.textColor
+        contentView.addSubview(longView)
+        stackView.alignment = .center
+        stackView.distribution = .fillEqually
+        stackView.axis = .horizontal
+        stackView.spacing = 1
+        longView.addSubview(stackView)
+        for _ in 0 ..< 16 {
+            let tipView = UIView()
+            tipView.backgroundColor = .white
+            stackView.addArrangedSubview(tipView)
+            tipView.translatesAutoresizingMaskIntoConstraints = false
+            NSLayoutConstraint.activate([
+                tipView.heightAnchor.constraint(equalTo: stackView.heightAnchor),
+            ])
+        }
+        translatesAutoresizingMaskIntoConstraints = false
+        imageView.translatesAutoresizingMaskIntoConstraints = false
+        titleLabel.translatesAutoresizingMaskIntoConstraints = false
+        longView.translatesAutoresizingMaskIntoConstraints = false
+        stackView.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            imageView.widthAnchor.constraint(equalToConstant: 79),
+            imageView.heightAnchor.constraint(equalToConstant: 76),
+            imageView.centerYAnchor.constraint(equalTo: centerYAnchor),
+            imageView.centerXAnchor.constraint(equalTo: centerXAnchor),
+            titleLabel.topAnchor.constraint(equalTo: topAnchor, constant: 5),
+            titleLabel.widthAnchor.constraint(equalTo: widthAnchor),
+            titleLabel.centerXAnchor.constraint(equalTo: centerXAnchor),
+            titleLabel.heightAnchor.constraint(equalToConstant: 30),
+            longView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: 13),
+            longView.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -13),
+            longView.heightAnchor.constraint(equalToConstant: 7),
+            longView.bottomAnchor.constraint(equalTo: bottomAnchor, constant: -16),
+            stackView.leadingAnchor.constraint(equalTo: longView.leadingAnchor, constant: 1),
+            stackView.trailingAnchor.constraint(equalTo: longView.trailingAnchor, constant: -1),
+            stackView.topAnchor.constraint(equalTo: longView.topAnchor, constant: 1),
+            stackView.bottomAnchor.constraint(equalTo: longView.bottomAnchor, constant: -1),
+        ])
+    }
+}
+
+extension SystemView: BrightnessVolumeViewProtocol {
+    public func setProgress(_ progress: Float, type: UInt) {
+        if type == 0 {
+            imageView.image = brightnessImage
+            titleLabel.text = NSLocalizedString("brightness", comment: "")
+        } else {
+            imageView.image = volumeImage
+            titleLabel.text = NSLocalizedString("volume", comment: "")
+        }
+        let level = Int(progress * Float(stackView.arrangedSubviews.count))
+        for i in 0 ..< stackView.arrangedSubviews.count {
+            let view = stackView.arrangedSubviews[i]
+            if i <= level, level > 0 {
+                view.alpha = 1
+            } else {
+                view.alpha = 0
+            }
+        }
+    }
+
+    public func move(to view: UIView) {
+        if superview != view {
+            removeFromSuperview()
+            view.addSubview(self)
+            translatesAutoresizingMaskIntoConstraints = false
+            NSLayoutConstraint.activate([
+                centerXAnchor.constraint(equalTo: view.centerXAnchor),
+                centerYAnchor.constraint(equalTo: view.centerYAnchor),
+                heightAnchor.constraint(equalToConstant: 155),
+                widthAnchor.constraint(equalToConstant: 155),
+            ])
+        }
+    }
+}
+
+private final class ProgressView: UIView {
+    private lazy var brightnessImage = UIImage(systemName: "sun.max")
+    private lazy var volumeImage = UIImage(systemName: "speaker.fill")
+    private lazy var brightnessOffImage = UIImage(systemName: "sun.min")
+    private lazy var volumeOffImage = UIImage(systemName: "speaker.slash.fill")
+    private let progressView = UIProgressView()
+    private let imageView = UIImageView()
+
+    override init(frame _: CGRect) {
+        super.init(frame: .zero)
+        addSubview(progressView)
+        addSubview(imageView)
+        progressView.progressTintColor = UIColor.white
+        progressView.trackTintColor = UIColor.white.withAlphaComponent(0.5)
+        progressView.translatesAutoresizingMaskIntoConstraints = false
+        progressView.centerRotate(byDegrees: -90)
+        imageView.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            progressView.widthAnchor.constraint(equalToConstant: 115),
+            progressView.heightAnchor.constraint(equalToConstant: 2),
+            progressView.centerXAnchor.constraint(equalTo: centerXAnchor),
+            progressView.topAnchor.constraint(equalTo: topAnchor, constant: 57),
+            imageView.leadingAnchor.constraint(equalTo: leadingAnchor),
+            imageView.trailingAnchor.constraint(equalTo: trailingAnchor),
+            imageView.bottomAnchor.constraint(equalTo: bottomAnchor),
+        ])
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+}
+
+extension ProgressView: BrightnessVolumeViewProtocol {
+    func setProgress(_ progress: Float, type: UInt) {
+        progressView.setProgress(progress, animated: false)
+        if progress == 0 {
+            imageView.image = type == 0 ? brightnessOffImage : volumeOffImage
+        } else {
+            imageView.image = type == 0 ? brightnessImage : volumeImage
+        }
+    }
+
+    func move(to view: UIView) {
+        if superview != view {
+            removeFromSuperview()
+            view.addSubview(self)
+            translatesAutoresizingMaskIntoConstraints = false
+            NSLayoutConstraint.activate([
+                trailingAnchor.constraint(equalTo: view.safeTrailingAnchor, constant: -10),
+                centerYAnchor.constraint(equalTo: view.centerYAnchor),
+                heightAnchor.constraint(equalToConstant: 150),
+                widthAnchor.constraint(equalToConstant: 24),
+            ])
+        }
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Video/IOSVideoPlayerView.swift

@@ -0,0 +1,474 @@
+//
+//  IOSVideoPlayerView.swift
+//  Pods
+//
+//  Created by kintan on 2018/10/31.
+//
+#if canImport(UIKit) && canImport(CallKit)
+import AVKit
+import Combine
+import CoreServices
+import MediaPlayer
+import UIKit
+
+open class IOSVideoPlayerView: VideoPlayerView {
+    private weak var originalSuperView: UIView?
+    private var originalframeConstraints: [NSLayoutConstraint]?
+    private var originalFrame = CGRect.zero
+    private var originalOrientations: UIInterfaceOrientationMask?
+    private weak var fullScreenDelegate: PlayerViewFullScreenDelegate?
+    private var isVolume = false
+    private let volumeView = BrightnessVolume()
+    public var volumeViewSlider = UXSlider()
+    public var backButton = UIButton()
+    public var airplayStatusView: UIView = AirplayStatusView()
+    #if !os(xrOS)
+    public var routeButton = AVRoutePickerView()
+    #endif
+    private let routeDetector = AVRouteDetector()
+    /// Image view to show video cover
+    public var maskImageView = UIImageView()
+    public var landscapeButton: UIControl = UIButton()
+    override open var isMaskShow: Bool {
+        didSet {
+            fullScreenDelegate?.player(isMaskShow: isMaskShow, isFullScreen: landscapeButton.isSelected)
+        }
+    }
+
+    #if !os(xrOS)
+    private var brightness: CGFloat = UIScreen.main.brightness {
+        didSet {
+            UIScreen.main.brightness = brightness
+        }
+    }
+    #endif
+
+    override open func customizeUIComponents() {
+        super.customizeUIComponents()
+        if UIDevice.current.userInterfaceIdiom == .phone {
+            subtitleLabel.font = .systemFont(ofSize: 14)
+        }
+        insertSubview(maskImageView, at: 0)
+        maskImageView.contentMode = .scaleAspectFit
+        toolBar.addArrangedSubview(landscapeButton)
+        landscapeButton.tag = PlayerButtonType.landscape.rawValue
+        landscapeButton.addTarget(self, action: #selector(onButtonPressed(_:)), for: .touchUpInside)
+        landscapeButton.tintColor = .white
+        if let landscapeButton = landscapeButton as? UIButton {
+            landscapeButton.setImage(UIImage(systemName: "arrow.up.left.and.arrow.down.right"), for: .normal)
+            landscapeButton.setImage(UIImage(systemName: "arrow.down.right.and.arrow.up.left"), for: .selected)
+        }
+        backButton.tag = PlayerButtonType.back.rawValue
+        backButton.setImage(UIImage(systemName: "chevron.left"), for: .normal)
+        backButton.addTarget(self, action: #selector(onButtonPressed(_:)), for: .touchUpInside)
+        backButton.tintColor = .white
+        navigationBar.insertArrangedSubview(backButton, at: 0)
+
+        addSubview(airplayStatusView)
+        volumeView.move(to: self)
+        #if !targetEnvironment(macCatalyst)
+        let tmp = MPVolumeView(frame: CGRect(x: -100, y: -100, width: 0, height: 0))
+        if let first = (tmp.subviews.first { $0 is UISlider }) as? UISlider {
+            volumeViewSlider = first
+        }
+        #endif
+        backButton.translatesAutoresizingMaskIntoConstraints = false
+        landscapeButton.translatesAutoresizingMaskIntoConstraints = false
+        maskImageView.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            maskImageView.topAnchor.constraint(equalTo: topAnchor),
+            maskImageView.leadingAnchor.constraint(equalTo: leadingAnchor),
+            maskImageView.bottomAnchor.constraint(equalTo: bottomAnchor),
+            maskImageView.trailingAnchor.constraint(equalTo: trailingAnchor),
+            backButton.widthAnchor.constraint(equalToConstant: 25),
+            landscapeButton.widthAnchor.constraint(equalToConstant: 30),
+            airplayStatusView.centerXAnchor.constraint(equalTo: centerXAnchor),
+            airplayStatusView.centerYAnchor.constraint(equalTo: centerYAnchor),
+        ])
+        #if !os(xrOS)
+        routeButton.isHidden = true
+        navigationBar.addArrangedSubview(routeButton)
+        routeButton.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            routeButton.widthAnchor.constraint(equalToConstant: 25),
+        ])
+        #endif
+        addNotification()
+    }
+
+    override open func resetPlayer() {
+        super.resetPlayer()
+        maskImageView.alpha = 1
+        maskImageView.image = nil
+        panGesture.isEnabled = false
+        #if !os(xrOS)
+        routeButton.isHidden = !routeDetector.multipleRoutesDetected
+        #endif
+    }
+
+    override open func onButtonPressed(type: PlayerButtonType, button: UIButton) {
+        if type == .back, viewController is PlayerFullScreenViewController {
+            updateUI(isFullScreen: false)
+            return
+        }
+        super.onButtonPressed(type: type, button: button)
+        if type == .lock {
+            button.isSelected.toggle()
+            isMaskShow = !button.isSelected
+            button.alpha = 1.0
+        } else if type == .landscape {
+            updateUI(isFullScreen: !landscapeButton.isSelected)
+        }
+    }
+
+    open func isHorizonal() -> Bool {
+        playerLayer?.player.naturalSize.isHorizonal ?? true
+    }
+
+    open func updateUI(isFullScreen: Bool) {
+        guard let viewController else {
+            return
+        }
+        landscapeButton.isSelected = isFullScreen
+        let isHorizonal = isHorizonal()
+        viewController.navigationController?.interactivePopGestureRecognizer?.isEnabled = !isFullScreen
+        if isFullScreen {
+            if viewController is PlayerFullScreenViewController {
+                return
+            }
+            originalSuperView = superview
+            originalframeConstraints = frameConstraints
+            if let originalframeConstraints {
+                NSLayoutConstraint.deactivate(originalframeConstraints)
+            }
+            originalFrame = frame
+            originalOrientations = viewController.supportedInterfaceOrientations
+            let fullVC = PlayerFullScreenViewController(isHorizonal: isHorizonal)
+            fullScreenDelegate = fullVC
+            fullVC.view.addSubview(self)
+            translatesAutoresizingMaskIntoConstraints = false
+            NSLayoutConstraint.activate([
+                topAnchor.constraint(equalTo: fullVC.view.readableTopAnchor),
+                leadingAnchor.constraint(equalTo: fullVC.view.leadingAnchor),
+                trailingAnchor.constraint(equalTo: fullVC.view.trailingAnchor),
+                bottomAnchor.constraint(equalTo: fullVC.view.bottomAnchor),
+            ])
+            fullVC.modalPresentationStyle = .fullScreen
+            fullVC.modalPresentationCapturesStatusBarAppearance = true
+            fullVC.transitioningDelegate = self
+            viewController.present(fullVC, animated: true) {
+                KSOptions.supportedInterfaceOrientations = fullVC.supportedInterfaceOrientations
+            }
+        } else {
+            guard viewController is PlayerFullScreenViewController else {
+                return
+            }
+            let presentingVC = viewController.presentingViewController ?? viewController
+            if let originalOrientations {
+                KSOptions.supportedInterfaceOrientations = originalOrientations
+            }
+            presentingVC.dismiss(animated: true) {
+                self.originalSuperView?.addSubview(self)
+                if let constraints = self.originalframeConstraints, !constraints.isEmpty {
+                    NSLayoutConstraint.activate(constraints)
+                } else {
+                    self.translatesAutoresizingMaskIntoConstraints = true
+                    self.frame = self.originalFrame
+                }
+            }
+        }
+        let isLandscape = isFullScreen && isHorizonal
+        updateUI(isLandscape: isLandscape)
+    }
+
+    open func updateUI(isLandscape: Bool) {
+        if isLandscape {
+            topMaskView.isHidden = KSOptions.topBarShowInCase == .none
+        } else {
+            topMaskView.isHidden = KSOptions.topBarShowInCase != .always
+        }
+        toolBar.playbackRateButton.isHidden = false
+        toolBar.srtButton.isHidden = srtControl.subtitleInfos.isEmpty
+        if UIDevice.current.userInterfaceIdiom == .phone {
+            if isLandscape {
+                landscapeButton.isHidden = true
+                toolBar.srtButton.isHidden = srtControl.subtitleInfos.isEmpty
+            } else {
+                toolBar.srtButton.isHidden = true
+                if let image = maskImageView.image {
+                    landscapeButton.isHidden = image.size.width < image.size.height
+                } else {
+                    landscapeButton.isHidden = false
+                }
+            }
+            toolBar.playbackRateButton.isHidden = !isLandscape
+        } else {
+            landscapeButton.isHidden = true
+        }
+        lockButton.isHidden = !isLandscape
+        judgePanGesture()
+    }
+
+    override open func player(layer: KSPlayerLayer, state: KSPlayerState) {
+        super.player(layer: layer, state: state)
+        if state == .readyToPlay {
+            UIView.animate(withDuration: 0.3) {
+                self.maskImageView.alpha = 0.0
+            }
+        }
+        judgePanGesture()
+    }
+
+    override open func player(layer: KSPlayerLayer, currentTime: TimeInterval, totalTime: TimeInterval) {
+        airplayStatusView.isHidden = !layer.player.isExternalPlaybackActive
+        super.player(layer: layer, currentTime: currentTime, totalTime: totalTime)
+    }
+
+    override open func set(resource: KSPlayerResource, definitionIndex: Int = 0, isSetUrl: Bool = true) {
+        super.set(resource: resource, definitionIndex: definitionIndex, isSetUrl: isSetUrl)
+        maskImageView.image(url: resource.cover)
+    }
+
+    override open func change(definitionIndex: Int) {
+        Task {
+            let image = await playerLayer?.player.thumbnailImageAtCurrentTime()
+            if let image {
+                self.maskImageView.image = UIImage(cgImage: image)
+                self.maskImageView.alpha = 1
+            }
+            super.change(definitionIndex: definitionIndex)
+        }
+    }
+
+    override open func panGestureBegan(location point: CGPoint, direction: KSPanDirection) {
+        if direction == .vertical {
+            if point.x > bounds.size.width / 2 {
+                isVolume = true
+                tmpPanValue = volumeViewSlider.value
+            } else {
+                isVolume = false
+            }
+        } else {
+            super.panGestureBegan(location: point, direction: direction)
+        }
+    }
+
+    override open func panGestureChanged(velocity point: CGPoint, direction: KSPanDirection) {
+        if direction == .vertical {
+            if isVolume {
+                if KSOptions.enableVolumeGestures {
+                    tmpPanValue += panValue(velocity: point, direction: direction, currentTime: Float(toolBar.currentTime), totalTime: Float(totalTime))
+                    tmpPanValue = max(min(tmpPanValue, 1), 0)
+                    volumeViewSlider.value = tmpPanValue
+                }
+            } else if KSOptions.enableBrightnessGestures {
+                #if !os(xrOS)
+                brightness += CGFloat(panValue(velocity: point, direction: direction, currentTime: Float(toolBar.currentTime), totalTime: Float(totalTime)))
+                #endif
+            }
+        } else {
+            super.panGestureChanged(velocity: point, direction: direction)
+        }
+    }
+
+    open func judgePanGesture() {
+        if landscapeButton.isSelected || UIDevice.current.userInterfaceIdiom == .pad {
+            panGesture.isEnabled = isPlayed && !replayButton.isSelected
+        } else {
+            panGesture.isEnabled = toolBar.playButton.isSelected
+        }
+    }
+}
+
+extension IOSVideoPlayerView: UIViewControllerTransitioningDelegate {
+    public func animationController(forPresented _: UIViewController, presenting _: UIViewController, source _: UIViewController) -> UIViewControllerAnimatedTransitioning? {
+        if let originalSuperView, let animationView = playerLayer?.player.view {
+            return PlayerTransitionAnimator(containerView: originalSuperView, animationView: animationView)
+        }
+        return nil
+    }
+
+    public func animationController(forDismissed _: UIViewController) -> UIViewControllerAnimatedTransitioning? {
+        if let originalSuperView, let animationView = playerLayer?.player.view {
+            return PlayerTransitionAnimator(containerView: originalSuperView, animationView: animationView, isDismiss: true)
+        } else {
+            return nil
+        }
+    }
+}
+
+// MARK: - private functions
+
+extension IOSVideoPlayerView {
+    private func addNotification() {
+//        NotificationCenter.default.addObserver(self, selector: #selector(orientationChanged), name: UIApplication.didChangeStatusBarOrientationNotification, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(routesAvailableDidChange), name: .AVRouteDetectorMultipleRoutesDetectedDidChange, object: nil)
+    }
+
+    @objc private func routesAvailableDidChange(notification _: Notification) {
+        #if !os(xrOS)
+        routeButton.isHidden = !routeDetector.multipleRoutesDetected
+        #endif
+    }
+
+    @objc private func orientationChanged(notification _: Notification) {
+        guard isHorizonal() else {
+            return
+        }
+        updateUI(isFullScreen: UIApplication.isLandscape)
+    }
+}
+
+public class AirplayStatusView: UIView {
+    override public init(frame: CGRect) {
+        super.init(frame: frame)
+        let airplayicon = UIImageView(image: UIImage(systemName: "airplayvideo"))
+        addSubview(airplayicon)
+        let airplaymessage = UILabel()
+        airplaymessage.backgroundColor = .clear
+        airplaymessage.textColor = .white
+        airplaymessage.font = .systemFont(ofSize: 14)
+        airplaymessage.text = NSLocalizedString("AirPlay 投放中", comment: "")
+        airplaymessage.textAlignment = .center
+        addSubview(airplaymessage)
+        translatesAutoresizingMaskIntoConstraints = false
+        airplayicon.translatesAutoresizingMaskIntoConstraints = false
+        airplaymessage.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            widthAnchor.constraint(equalToConstant: 100),
+            heightAnchor.constraint(equalToConstant: 115),
+            airplayicon.topAnchor.constraint(equalTo: topAnchor),
+            airplayicon.centerXAnchor.constraint(equalTo: centerXAnchor),
+            airplayicon.widthAnchor.constraint(equalToConstant: 100),
+            airplayicon.heightAnchor.constraint(equalToConstant: 100),
+            airplaymessage.bottomAnchor.constraint(equalTo: bottomAnchor),
+            airplaymessage.leadingAnchor.constraint(equalTo: leadingAnchor),
+            airplaymessage.trailingAnchor.constraint(equalTo: trailingAnchor),
+            airplaymessage.heightAnchor.constraint(equalToConstant: 15),
+        ])
+        isHidden = true
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+}
+
+public extension KSOptions {
+    /// func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask
+    static var supportedInterfaceOrientations = UIInterfaceOrientationMask.portrait
+}
+
+extension UIApplication {
+    static var isLandscape: Bool {
+        UIApplication.shared.windows.first?.windowScene?.interfaceOrientation.isLandscape ?? false
+    }
+}
+
+// MARK: - menu
+
+extension IOSVideoPlayerView {
+    override open var canBecomeFirstResponder: Bool {
+        true
+    }
+
+    override open func canPerformAction(_ action: Selector, withSender _: Any?) -> Bool {
+        if action == #selector(IOSVideoPlayerView.openFileAction) {
+            return true
+        }
+        return true
+    }
+
+    @objc fileprivate func openFileAction(_: AnyObject) {
+        let documentPicker = UIDocumentPickerViewController(documentTypes: [kUTTypeAudio, kUTTypeMovie, kUTTypePlainText] as [String], in: .open)
+        documentPicker.delegate = self
+        viewController?.present(documentPicker, animated: true, completion: nil)
+    }
+}
+
+extension IOSVideoPlayerView: UIDocumentPickerDelegate {
+    public func documentPicker(_: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
+        if let url = urls.first {
+            if url.isMovie || url.isAudio {
+                set(url: url, options: KSOptions())
+            } else {
+                srtControl.selectedSubtitleInfo = URLSubtitleInfo(url: url)
+            }
+        }
+    }
+}
+
+#endif
+
+#if os(iOS)
+@MainActor
+public class MenuController {
+    public init(with builder: UIMenuBuilder) {
+        builder.remove(menu: .format)
+        builder.insertChild(MenuController.openFileMenu(), atStartOfMenu: .file)
+//        builder.insertChild(MenuController.openURLMenu(), atStartOfMenu: .file)
+//        builder.insertChild(MenuController.navigationMenu(), atStartOfMenu: .file)
+    }
+
+    class func openFileMenu() -> UIMenu {
+        let openCommand = UIKeyCommand(input: "O", modifierFlags: .command, action: #selector(IOSVideoPlayerView.openFileAction(_:)))
+        openCommand.title = NSLocalizedString("Open File", comment: "")
+        let openMenu = UIMenu(title: "",
+                              image: nil,
+                              identifier: UIMenu.Identifier("com.example.apple-samplecode.menus.openFileMenu"),
+                              options: .displayInline,
+                              children: [openCommand])
+        return openMenu
+    }
+
+//    class func openURLMenu() -> UIMenu {
+//        let openCommand = UIKeyCommand(input: "O", modifierFlags: [.command, .shift], action: #selector(IOSVideoPlayerView.openURLAction(_:)))
+//        openCommand.title = NSLocalizedString("Open URL", comment: "")
+//        let openMenu = UIMenu(title: "",
+//                              image: nil,
+//                              identifier: UIMenu.Identifier("com.example.apple-samplecode.menus.openURLMenu"),
+//                              options: .displayInline,
+//                              children: [openCommand])
+//        return openMenu
+//    }
+//    class func navigationMenu() -> UIMenu {
+//        let arrowKeyChildrenCommands = Arrows.allCases.map { arrow in
+//            UIKeyCommand(title: arrow.localizedString(),
+//                         image: nil,
+//                         action: #selector(IOSVideoPlayerView.navigationMenuAction(_:)),
+//                         input: arrow.command,
+//                         modifierFlags: .command)
+//        }
+//        return UIMenu(title: NSLocalizedString("NavigationTitle", comment: ""),
+//                      image: nil,
+//                      identifier: UIMenu.Identifier("com.example.apple-samplecode.menus.navigationMenu"),
+//                      options: [],
+//                      children: arrowKeyChildrenCommands)
+//    }
+
+    enum Arrows: String, CaseIterable {
+        case rightArrow
+        case leftArrow
+        case upArrow
+        case downArrow
+        func localizedString() -> String {
+            NSLocalizedString("\(rawValue)", comment: "")
+        }
+
+        @MainActor
+        var command: String {
+            switch self {
+            case .rightArrow:
+                return UIKeyCommand.inputRightArrow
+            case .leftArrow:
+                return UIKeyCommand.inputLeftArrow
+            case .upArrow:
+                return UIKeyCommand.inputUpArrow
+            case .downArrow:
+                return UIKeyCommand.inputDownArrow
+            }
+        }
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Video/KSMenu.swift

@@ -0,0 +1,99 @@
+//
+//  KSMenu.swift
+//  KSPlayer
+//
+//  Created by Alanko5 on 15/12/2022.
+//
+
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+
+extension UIMenu {
+    func updateActionState(actionTitle: String? = nil) -> UIMenu {
+        for action in children {
+            guard let action = action as? UIAction else {
+                continue
+            }
+            action.state = action.title == actionTitle ? .on : .off
+        }
+        return self
+    }
+
+    @available(tvOS 15.0, *)
+    convenience init?<U>(title: String, current: U?, list: [U], addDisabled: Bool = false, titleFunc: (U) -> String, completition: @escaping (String, U?) -> Void) {
+        if list.count < (addDisabled ? 1 : 2) {
+            return nil
+        }
+        var actions = list.map { value in
+            let item = UIAction(title: titleFunc(value)) { item in
+                completition(item.title, value)
+            }
+
+            if let current, titleFunc(value) == titleFunc(current) {
+                item.state = .on
+            }
+            return item
+        }
+        if addDisabled {
+            actions.insert(UIAction(title: "Disabled") { item in
+                completition(item.title, nil)
+            }, at: 0)
+        }
+
+        self.init(title: title, children: actions)
+    }
+}
+
+#if !os(tvOS)
+extension UIButton {
+    @available(iOS 14.0, *)
+    func setMenu<U>(title: String, current: U?, list: [U], addDisabled: Bool = false, titleFunc: (U) -> String, completition handler: @escaping (U?) -> Void) {
+        menu = UIMenu(title: title, current: current, list: list, addDisabled: addDisabled, titleFunc: titleFunc) { [weak self] title, value in
+            guard let self else { return }
+            handler(value)
+            self.menu = self.menu?.updateActionState(actionTitle: title)
+        }
+    }
+}
+#endif
+
+#if canImport(UIKit)
+
+#else
+public typealias UIMenu = NSMenu
+
+public final class UIAction: NSMenuItem {
+    private let handler: (UIAction) -> Void
+    init(title: String, handler: @escaping (UIAction) -> Void) {
+        self.handler = handler
+        super.init(title: title, action: #selector(menuPressed), keyEquivalent: "")
+        state = .off
+        target = self
+    }
+
+    @objc private func menuPressed() {
+        handler(self)
+    }
+
+    @available(*, unavailable)
+    required init(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+}
+
+extension UIMenu {
+    var children: [NSMenuItem] {
+        items
+    }
+
+    convenience init(title: String, children: [UIAction]) {
+        self.init(title: title)
+        for item in children {
+            addItem(item)
+        }
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Video/KSPlayerItem.swift

@@ -0,0 +1,147 @@
+//
+//  KSPlayerItem.swift
+//  Pods
+//
+//  Created by kintan on 16/5/21.
+//
+//
+
+import AVFoundation
+import Foundation
+import MediaPlayer
+
+public class KSPlayerResource: Equatable, Hashable {
+    public static func == (lhs: KSPlayerResource, rhs: KSPlayerResource) -> Bool {
+        lhs.definitions == rhs.definitions
+    }
+
+    public let name: String
+    public let definitions: [KSPlayerResourceDefinition]
+    public let cover: URL?
+    public let subtitleDataSouce: SubtitleDataSouce?
+    public var nowPlayingInfo: KSNowPlayableMetadata?
+    public let extinf: [String: String]?
+    /**
+     Player recource item with url, used to play single difinition video
+
+     - parameter name:      video name
+     - parameter url:       video url
+     - parameter cover:     video cover, will show before playing, and hide when play
+     - parameter subtitleURLs: video subtitles
+     */
+    public convenience init(url: URL, options: KSOptions = KSOptions(), name: String = "", cover: URL? = nil, subtitleURLs: [URL]? = nil, extinf: [String: String]? = nil) {
+        let definition = KSPlayerResourceDefinition(url: url, definition: "", options: options)
+        let subtitleDataSouce: URLSubtitleDataSouce?
+        if let subtitleURLs {
+            subtitleDataSouce = URLSubtitleDataSouce(urls: subtitleURLs)
+        } else {
+            subtitleDataSouce = nil
+        }
+
+        self.init(name: name, definitions: [definition], cover: cover, subtitleDataSouce: subtitleDataSouce, extinf: extinf)
+    }
+
+    /**
+     Play resouce with multi definitions
+
+     - parameter name:        video name
+     - parameter definitions: video definitions
+     - parameter cover:       video cover
+     - parameter subtitle:   video subtitle
+     */
+    public init(name: String, definitions: [KSPlayerResourceDefinition], cover: URL? = nil, subtitleDataSouce: SubtitleDataSouce? = nil, extinf: [String: String]? = nil) {
+        self.name = name
+        self.cover = cover
+        self.subtitleDataSouce = subtitleDataSouce
+        self.definitions = definitions
+        self.extinf = extinf
+        nowPlayingInfo = KSNowPlayableMetadata(title: name)
+    }
+
+    public func hash(into hasher: inout Hasher) {
+        hasher.combine(definitions)
+    }
+}
+
+extension KSPlayerResource: Identifiable {
+    public var id: KSPlayerResource { self }
+}
+
+public struct KSPlayerResourceDefinition: Hashable {
+    public static func == (lhs: KSPlayerResourceDefinition, rhs: KSPlayerResourceDefinition) -> Bool {
+        lhs.url == rhs.url
+    }
+
+    public let url: URL
+    public let definition: String
+    public let options: KSOptions
+    public init(url: URL) {
+        self.init(url: url, definition: url.lastPathComponent)
+    }
+
+    /**
+     Video recource item with defination name and specifying options
+
+     - parameter url:        video url
+     - parameter definition: url deifination
+     - parameter options:    specifying options for the initialization of the AVURLAsset
+     */
+    public init(url: URL, definition: String, options: KSOptions = KSOptions()) {
+        self.url = url
+        self.definition = definition
+        self.options = options
+    }
+
+    public func hash(into hasher: inout Hasher) {
+        hasher.combine(url)
+    }
+}
+
+extension KSPlayerResourceDefinition: Identifiable {
+    public var id: Self { self }
+}
+
+public struct KSNowPlayableMetadata {
+    private let mediaType: MPNowPlayingInfoMediaType?
+    private let isLiveStream: Bool?
+    private let title: String
+    private let artist: String?
+    private let artwork: MPMediaItemArtwork?
+    private let albumArtist: String?
+    private let albumTitle: String?
+    var nowPlayingInfo: [String: Any] {
+        var nowPlayingInfo = [String: Any]()
+        nowPlayingInfo[MPNowPlayingInfoPropertyMediaType] = mediaType?.rawValue
+        nowPlayingInfo[MPNowPlayingInfoPropertyIsLiveStream] = isLiveStream
+        nowPlayingInfo[MPMediaItemPropertyTitle] = title
+        nowPlayingInfo[MPMediaItemPropertyArtist] = artist
+        if #available(OSX 10.13.2, *) {
+            nowPlayingInfo[MPMediaItemPropertyArtwork] = artwork
+        }
+        nowPlayingInfo[MPMediaItemPropertyAlbumArtist] = albumArtist
+        nowPlayingInfo[MPMediaItemPropertyAlbumTitle] = albumTitle
+        return nowPlayingInfo
+    }
+
+    public init(mediaType: MPNowPlayingInfoMediaType? = nil, isLiveStream: Bool? = nil, title: String, artist: String? = nil,
+                artwork: MPMediaItemArtwork? = nil, albumArtist: String? = nil, albumTitle: String? = nil)
+    {
+        self.mediaType = mediaType
+        self.isLiveStream = isLiveStream
+        self.title = title
+        self.artist = artist
+        self.artwork = artwork
+        self.albumArtist = albumArtist
+        self.albumTitle = albumTitle
+    }
+
+    public init(mediaType: MPNowPlayingInfoMediaType? = nil, isLiveStream: Bool? = nil, title: String, artist: String? = nil, image: UIImage, albumArtist: String? = nil, albumTitle: String? = nil) {
+        self.mediaType = mediaType
+        self.isLiveStream = isLiveStream
+        self.title = title
+        self.artist = artist
+        self.albumArtist = albumArtist
+        self.albumTitle = albumTitle
+        artwork = MPMediaItemArtwork(boundsSize: image.size) { _ in image }
+    }
+}

KSPlayer-main/Sources/KSPlayer/Video/MacVideoPlayerView.swift

@@ -0,0 +1,209 @@
+//
+//  MacVideoPlayerView.swift
+//  Pods
+//
+//  Created by kintan on 2018/10/31.
+//
+#if !canImport(UIKit)
+
+import AppKit
+import AVFoundation
+
+public extension NSPasteboard.PasteboardType {
+    static let nsURL = NSPasteboard.PasteboardType("NSURL")
+    static let nsFilenames = NSPasteboard.PasteboardType("NSFilenamesPboardType")
+}
+
+public extension NSDraggingInfo {
+    @MainActor
+    func getUrl() -> URL? {
+        guard let types = draggingPasteboard.types else { return nil }
+
+        if types.contains(.nsFilenames) {
+            guard let paths = draggingPasteboard.propertyList(forType: .nsFilenames) as? [String] else { return nil }
+            let urls = paths.map { URL(fileURLWithPath: $0) }
+            return urls.first
+        }
+        return nil
+    }
+}
+
+open class MacVideoPlayerView: VideoPlayerView {
+    override open func customizeUIComponents() {
+        super.customizeUIComponents()
+        registerForDraggedTypes([.nsFilenames, .nsURL, .string])
+    }
+
+    override open func player(layer: KSPlayerLayer, state: KSPlayerState) {
+        super.player(layer: layer, state: state)
+        if state == .readyToPlay {
+            let naturalSize = layer.player.naturalSize
+            window?.aspectRatio = naturalSize
+        }
+    }
+}
+
+extension MacVideoPlayerView {
+    override open func updateTrackingAreas() {
+        for trackingArea in trackingAreas {
+            removeTrackingArea(trackingArea)
+        }
+        let trackingArea = NSTrackingArea(rect: bounds, options: [.mouseEnteredAndExited, .mouseMoved, .activeInKeyWindow], owner: self, userInfo: nil)
+        addTrackingArea(trackingArea)
+    }
+
+    override open func mouseEntered(with _: NSEvent) {
+        isMaskShow = true
+    }
+
+    override open func mouseMoved(with _: NSEvent) {
+        isMaskShow = true
+    }
+
+    override open func mouseExited(with _: NSEvent) {
+        isMaskShow = false
+    }
+
+    override open func scrollWheel(with event: NSEvent) {
+        if event.phase.contains(.began) {
+            if event.scrollingDeltaX != 0 {
+                scrollDirection = .horizontal
+                tmpPanValue = toolBar.timeSlider.value
+            } else if event.scrollingDeltaY != 0 {
+                scrollDirection = .vertical
+                tmpPanValue = 1
+            }
+        } else if event.phase.contains(.changed) {
+            let delta = scrollDirection == .horizontal ? event.scrollingDeltaX : event.scrollingDeltaY
+            if scrollDirection == .horizontal {
+                tmpPanValue += Float(delta / 10000) * Float(totalTime)
+                showSeekToView(second: Double(tmpPanValue), isAdd: delta > 0)
+            } else {
+                if KSOptions.enableVolumeGestures {
+                    tmpPanValue -= Float(delta / 1000)
+                    tmpPanValue = max(min(tmpPanValue, 1), 0)
+                }
+            }
+        } else if event.phase.contains(.ended) {
+            if scrollDirection == .horizontal {
+                slider(value: Double(tmpPanValue), event: .touchUpInside)
+                hideSeekToView()
+            } else {
+                if KSOptions.enableVolumeGestures {
+                    playerLayer?.player.playbackVolume = tmpPanValue
+                }
+            }
+        }
+    }
+
+    override open var acceptsFirstResponder: Bool {
+        true
+    }
+
+    override open func keyDown(with event: NSEvent) {
+        if let specialKey = event.specialKey {
+            if specialKey == .rightArrow {
+                slider(value: Double(toolBar.timeSlider.value) + 0.01 * totalTime, event: .touchUpInside)
+            } else if specialKey == .leftArrow {
+                slider(value: Double(toolBar.timeSlider.value) - 0.01 * totalTime, event: .touchUpInside)
+            }
+        } else if let character = event.characters?.first {
+            if character == " " {
+                onButtonPressed(toolBar.playButton)
+            }
+        }
+    }
+
+    override open func draggingEntered(_: NSDraggingInfo) -> NSDragOperation {
+        .copy
+    }
+
+    override open func performDragOperation(_ sender: NSDraggingInfo) -> Bool {
+        if let url = sender.getUrl() {
+            if url.isMovie || url.isAudio {
+                set(resource: KSPlayerResource(url: url, options: KSOptions()))
+                return true
+            } else {
+                srtControl.selectedSubtitleInfo = URLSubtitleInfo(url: url)
+                return true
+            }
+        }
+        return false
+    }
+}
+
+class UIActivityIndicatorView: UIView {
+    private let loadingView = NSView()
+    private let progressLabel = UILabel()
+    public var progress: Double = 0 {
+        didSet {
+            print("new progress: \(progress)")
+            progressLabel.stringValue = "\(Int(progress * 100))%"
+        }
+    }
+
+    override init(frame frameRect: CGRect) {
+        super.init(frame: frameRect)
+        wantsLayer = true
+        backingLayer?.backgroundColor = UIColor(white: 0, alpha: 0.2).cgColor
+        setupLoadingView()
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    private func setupLoadingView() {
+        loadingView.wantsLayer = true
+        addSubview(loadingView)
+        let imageView = NSImageView()
+        imageView.image = KSOptions.image(named: "loading")
+        loadingView.addSubview(imageView)
+        imageView.imageScaling = .scaleAxesIndependently
+        imageView.translatesAutoresizingMaskIntoConstraints = false
+        loadingView.translatesAutoresizingMaskIntoConstraints = false
+        translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            widthAnchor.constraint(equalToConstant: 110),
+            heightAnchor.constraint(equalToConstant: 110),
+            loadingView.centerXAnchor.constraint(equalTo: centerXAnchor),
+            loadingView.centerYAnchor.constraint(equalTo: centerYAnchor),
+            loadingView.widthAnchor.constraint(equalTo: widthAnchor),
+            loadingView.heightAnchor.constraint(equalTo: heightAnchor),
+            imageView.bottomAnchor.constraint(equalTo: loadingView.bottomAnchor),
+            imageView.leadingAnchor.constraint(equalTo: loadingView.leadingAnchor),
+            imageView.heightAnchor.constraint(equalTo: widthAnchor),
+            imageView.widthAnchor.constraint(equalTo: heightAnchor),
+        ])
+        progressLabel.alignment = .center
+        progressLabel.font = NSFont.systemFont(ofSize: 18, weight: .medium)
+        addSubview(progressLabel)
+        progressLabel.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            progressLabel.centerXAnchor.constraint(equalTo: centerXAnchor),
+            progressLabel.topAnchor.constraint(equalTo: loadingView.bottomAnchor, constant: 20),
+            progressLabel.widthAnchor.constraint(equalToConstant: 100),
+            progressLabel.heightAnchor.constraint(equalToConstant: 22),
+        ])
+        startAnimating()
+    }
+}
+
+extension UIActivityIndicatorView: LoadingIndector {
+    func startAnimating() {
+        loadingView.backingLayer?.position = CGPoint(x: loadingView.layer!.frame.midX, y: loadingView.layer!.frame.midY)
+        loadingView.backingLayer?.anchorPoint = CGPoint(x: 0.5, y: 0.5)
+        let rotationAnimation = CABasicAnimation(keyPath: "transform.rotation.z")
+        rotationAnimation.duration = 1.0
+        rotationAnimation.repeatCount = MAXFLOAT
+        rotationAnimation.fromValue = 0.0
+        rotationAnimation.toValue = Float.pi * -2
+        loadingView.backingLayer?.add(rotationAnimation, forKey: "loading")
+    }
+
+    func stopAnimating() {
+        loadingView.backingLayer?.removeAnimation(forKey: "loading")
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Video/PlayerFullScreenViewController.swift

@@ -0,0 +1,69 @@
+//
+//  PlayerFullScreenViewController.swift
+//  KSPlayer
+//
+//  Created by kintan on 2021/8/20.
+//
+#if canImport(UIKit) && !os(tvOS)
+
+import UIKit
+
+protocol PlayerViewFullScreenDelegate: AnyObject {
+    func player(isMaskShow: Bool, isFullScreen: Bool)
+}
+
+class PlayerFullScreenViewController: UIViewController {
+    private let isHorizonal: Bool
+    private var statusHiden = false
+    init(isHorizonal: Bool) {
+        self.isHorizonal = isHorizonal
+        super.init(nibName: nil, bundle: nil)
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        KSOptions.supportedInterfaceOrientations = isHorizonal ? .landscapeRight : .portrait
+    }
+
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        navigationController?.navigationBar.isHidden = true
+        UIApplication.shared.isIdleTimerDisabled = true
+    }
+
+    override var shouldAutorotate: Bool {
+        KSOptions.supportedInterfaceOrientations == .all
+    }
+
+    override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
+        .all
+    }
+
+    override var prefersHomeIndicatorAutoHidden: Bool {
+        true
+    }
+
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        .lightContent
+    }
+
+    override var prefersStatusBarHidden: Bool {
+        statusHiden
+    }
+}
+
+extension PlayerFullScreenViewController: PlayerViewFullScreenDelegate {
+    func player(isMaskShow: Bool, isFullScreen: Bool) {
+        if isFullScreen {
+            statusHiden = !isMaskShow
+            setNeedsFocusUpdate()
+        }
+    }
+}
+
+#endif

KSPlayer-main/Sources/KSPlayer/Video/PlayerTransitionAnimator.swift

@@ -0,0 +1,71 @@
+//
+//  PlayerTransitionAnimator.swift
+//  KSPlayer
+//
+//  Created by kintan on 2021/8/20.
+//
+
+#if canImport(UIKit)
+import UIKit
+
+class PlayerTransitionAnimator: NSObject, UIViewControllerAnimatedTransitioning {
+    private let isDismiss: Bool
+    private let containerView: UIView
+    private let animationView: UIView
+    private let fromCenter: CGPoint
+    init(containerView: UIView, animationView: UIView, isDismiss: Bool = false) {
+        self.containerView = containerView
+        self.animationView = animationView
+        self.isDismiss = isDismiss
+        fromCenter = containerView.superview?.convert(containerView.center, to: nil) ?? .zero
+        super.init()
+    }
+
+    func transitionDuration(using _: UIViewControllerContextTransitioning?) -> TimeInterval {
+        0.3
+    }
+
+    func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
+        let animationSuperView = animationView.superview
+        let animationViewIndex = animationSuperView?.subviews.firstIndex(of: animationView) ?? 0
+        let initSize = animationView.frame.size
+        let animationFrameConstraints = animationView.frameConstraints
+        guard let presentedView = transitionContext.view(forKey: isDismiss ? .from : .to) else {
+            return
+        }
+        if isDismiss {
+            containerView.layoutIfNeeded()
+            presentedView.bounds = containerView.bounds
+            presentedView.removeFromSuperview()
+        } else {
+            if let viewController = transitionContext.viewController(forKey: .to) {
+                presentedView.frame = transitionContext.finalFrame(for: viewController)
+            }
+        }
+        presentedView.layoutIfNeeded()
+        transitionContext.containerView.addSubview(animationView)
+        animationView.translatesAutoresizingMaskIntoConstraints = true
+        guard let transform = transitionContext.viewController(forKey: .from)?.view.transform else {
+            return
+        }
+        animationView.transform = CGAffineTransform(scaleX: initSize.width / animationView.frame.size.width, y: initSize.height / animationView.frame.size.height).concatenating(transform)
+        let toCenter = transitionContext.containerView.center
+        let fromCenter = transform == .identity ? fromCenter : fromCenter.reverse
+        animationView.center = isDismiss ? toCenter : fromCenter
+        UIView.animate(withDuration: transitionDuration(using: transitionContext), delay: 0, options: .curveEaseInOut) {
+            self.animationView.transform = .identity
+            self.animationView.center = self.isDismiss ? fromCenter : toCenter
+        } completion: { _ in
+            animationSuperView?.insertSubview(self.animationView, at: animationViewIndex)
+            if !animationFrameConstraints.isEmpty {
+                self.animationView.translatesAutoresizingMaskIntoConstraints = false
+                NSLayoutConstraint.activate(animationFrameConstraints)
+            }
+            if !self.isDismiss {
+                transitionContext.containerView.addSubview(presentedView)
+            }
+            transitionContext.completeTransition(true)
+        }
+    }
+}
+#endif

KSPlayer-main/Sources/KSPlayer/Video/SeekView.swift

@@ -0,0 +1,75 @@
+//
+//  SeekView.swift
+//  KSPlayer-iOS
+//
+//  Created by kintan on 2018/11/14.
+//
+#if canImport(UIKit)
+import UIKit
+#else
+import AppKit
+#endif
+public protocol SeekViewProtocol {
+    func set(text: String, isAdd: Bool)
+}
+
+class SeekView: UIView {
+    private let seekToViewImage = UIImageView()
+    private let seekToLabel = UILabel()
+    override public init(frame: CGRect) {
+        super.init(frame: frame)
+        addSubview(seekToViewImage)
+        addSubview(seekToLabel)
+        seekToLabel.font = .systemFont(ofSize: 13)
+        seekToLabel.textColor = UIColor(red: 0.9098, green: 0.9098, blue: 0.9098, alpha: 1.0)
+        backgroundColor = UIColor(red: 0.0, green: 0.0, blue: 0.0, alpha: 0.7)
+        cornerRadius = 4
+        clipsToBounds = true
+        isHidden = true
+        if #available(macOS 11.0, *) {
+            seekToViewImage.image = UIImage(systemName: "forward.fill")
+        }
+        translatesAutoresizingMaskIntoConstraints = false
+        seekToViewImage.translatesAutoresizingMaskIntoConstraints = false
+        seekToLabel.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            seekToViewImage.leadingAnchor.constraint(equalTo: leadingAnchor, constant: 15),
+            seekToViewImage.centerYAnchor.constraint(equalTo: centerYAnchor),
+            seekToViewImage.widthAnchor.constraint(equalToConstant: 25),
+            seekToViewImage.heightAnchor.constraint(equalToConstant: 15),
+            seekToLabel.leadingAnchor.constraint(equalTo: seekToViewImage.trailingAnchor, constant: 10),
+            seekToLabel.centerYAnchor.constraint(equalTo: centerYAnchor),
+        ])
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    #if canImport(AppKit)
+    var backgroundColor: UIColor? {
+        get {
+            if let layer, let cgColor = layer.backgroundColor {
+                return UIColor(cgColor: cgColor)
+            } else {
+                return nil
+            }
+        }
+        set {
+            backingLayer?.backgroundColor = newValue?.cgColor
+        }
+    }
+    #endif
+}
+
+extension SeekView: SeekViewProtocol {
+    public func set(text: String, isAdd: Bool) {
+        seekToLabel.text = text
+        if !isAdd {
+            seekToViewImage.backingLayer?.position = CGPoint(x: seekToViewImage.backingLayer!.frame.midX, y: seekToViewImage.backingLayer!.frame.midY)
+            seekToViewImage.backingLayer?.anchorPoint = CGPoint(x: 0.5, y: 0.5)
+        }
+        seekToViewImage.centerRotate(byDegrees: isAdd ? 0.0 : 180)
+    }
+}