video暂停时，AVPlayer Fairplay HLS不会停止audio播放

尽pipe我试图只select与在线Fairplay Streaming相关的部分，而不是持久性/离线播放，但我正在使用Apple的Fairplay Streaming示例代码在https://developer.apple.com/streaming/fps/上使用Fairplay实现。 在下面的代码中，没有Fairplay的video播放/暂停/寻找正常，但是当我播放Fairplay保护的video时，只有video轨道的行为正确。

暂停播放不会停止audio播放，更改音轨不会停止以前的音轨，所以两个播放，也许寻找也不起作用。

除了这个帮助类以外，我还从Apple的FairPlay Streaming Server SDK的客户端示例代码中获得了AssetLoaderDelegate和AssetPlaybackManager ，我已经更新了代码来处理我们的DRM密钥的SPC / CKC供应商。

我是否想要实现代码的一些重要部分来处理FPSstream媒体的audio？ 你能指点我正确的方向吗？ 非常感谢。

 class PlayHelper { static let shared = PlayHelper() fileprivate var playerViewController: PlayerViewController? init() { AssetPlaybackManager.sharedManager.delegate = self } // Play video without DRM func playVideo(from urlString: String, at context: UIViewController) { guard let videoURL = URL(string: urlString) else { Log.error("Video URL can't be created from string: \(urlString)") return } let player = AVPlayer(url: videoURL) let playerViewController = PlayerViewController() playerViewController.player = player context.present(playerViewController, animated: true) { playerViewController.player?.play() } } // Play FPS video func playFpsVideo(with asset: AVURLAsset, at context: UIViewController) { // Cleanup, should be done when playerViewController is actually dismissed if self.playerViewController != nil { // The view reappeared as a results of dismissing an AVPlayerViewController. // Perform cleanup. AssetPlaybackManager.sharedManager.setAssetForPlayback(nil) self.playerViewController?.player = nil self.playerViewController = nil } let item = AVPlayerItem(asset: asset) let player = AVPlayer(playerItem: item) // Customize player player.appliesMediaSelectionCriteriaAutomatically = true let playerViewController = PlayerViewController() playerViewController.player = player self.playerViewController = playerViewController context.present(playerViewController, animated: true) { playerViewController.player?.play() } } // Stop video func stop() { // Cleanup, should be done when playerViewController is dismissed if self.playerViewController != nil { // Results of dismissing an AVPlayerViewController, perform cleanup AssetPlaybackManager.sharedManager.setAssetForPlayback(nil) self.playerViewController?.player = nil self.playerViewController = nil } } } // MARK: - Extend `PlayHelper` to conform to the `AssetPlaybackDelegate` protocol extension PlayHelper: AssetPlaybackDelegate { func streamPlaybackManager(_ streamPlaybackManager: AssetPlaybackManager, playerReadyToPlay player: AVPlayer) { player.play() } func streamPlaybackManager(_ streamPlaybackManager: AssetPlaybackManager, playerCurrentItemDidChange player: AVPlayer) { guard let playerViewController = playerViewController, player.currentItem != nil else { return } playerViewController.player = player } } 

如果需要，我也可以在AssetLoaderDelegate和AssetPlaybackManager提供代码。

Answer 1

我的错。 我在上面的代码中调用了play()两次… Grrr ..一次PlayerViewController完成，第二次在由AssetPlaybackDelegate中的KVO触发的AssetPlaybackDelegate的callback中。 这样玩家控制停止播放video，但很可能是第二个（audio）stream仍然在那里播放。 我删除了playerReadyToPlaycallback中的play() ，现在播放器中的所有控件都按预期工作。 我可以暂停，恢复，寻找，改变音轨。