当视频暂停时,AVPlayer Fairplay HLS不会停止音频播放
问题描述:
虽然我试图仅选择与Online Fairplay Streaming相关的部分,但不是持久性/离线播放。在下面的代码中,没有Fairplay的视频播放/暂停/寻找正常,但是当我播放Fairplay保护的视频时,只有视频轨道的行为正确。当视频暂停时,AVPlayer Fairplay HLS不会停止音频播放
暂停播放不会停止音频播放,更改音轨不会停止以前的音轨,因此两个播放在一起,也许寻找也不起作用。
而且低于此辅助类,我有AssetLoaderDelegate
和AssetPlaybackManager
从FairPlay的流媒体服务器SDK https://developer.apple.com/streaming/fps/的苹果客户端示例代码,我已经更新了代码来处理SPC/CKC我们的DRM密钥提供者。
我是否想要实现一些重要部分的代码来处理FPS Streaming的音频?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,我还可以在AssetLoaderDelegate
和AssetPlaybackManager
中提供代码。
答
我的不好。我在上面的代码中调用了play()
两次... Grrr ..一次当PlayerViewController
的表示完成时,第二次从AssetPlaybackDelegate
回调,由KVO在AssetPlaybackManager
触发。这样玩家控制停止播放视频,但很可能第二个(音频)流仍然在那里播放。我删除了playerReadyToPlay
回调中的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,更改音轨。
我想让代码在iOS应用中播放FairPlay内容。你能帮我解决这个问题吗? – Saty
作为Fairplay Streaming Server SDK的一部分,Apple提供了一个很好的客户端应用示例代码:https://developer.apple.com/streaming/fps/这应该是您的出发点。 –
@MartinKoles:我无法从developer.apple.com/streaming/fps下载示例代码,因为它显示禁止的错误。我们试图实现一个应该在浏览器上工作的播放器,并且它应该播放加密的内容。我想知道当我们得到'WebKitNeedKey'事件时我们需要做的细节,我们可以忽略第二个WebKitNeedKey事件。如果您有,请提供示例代码吗? – kadina