ios player

autoplay after recycle remove all items from AVPlayer queue recurururururursion use managers in the view add prefetch make sure player items stay in order add controller and item managers start of the view create module, ios
2024-04-17 17:59:34 -07:00
parent 7e16276c04
commit 4cb5f8a005
13 changed files with 385 additions and 0 deletions
@@ -0,0 +1,113 @@
+import AVKit
+
+class PlayerController: AVPlayerViewController, AVPlayerViewControllerDelegate {
+  private var playerLooper: AVPlayerLooper? = nil
+  var source: String? = nil
+  var _superview: ExpoBlueskyVideoPlayerView? = nil
+  
+  var isInUse = false
+  var playerItem:  AVPlayerItem?  {
+    get {
+      return self.player?.currentItem
+    }
+    set {
+      if newValue == nil {
+        if let player = self.player as? AVQueuePlayer {
+          player.removeAllItems()
+        }
+      } else {
+        self.player?.replaceCurrentItem(with: newValue)
+      }
+    }
+  }
+  var itemStatus: AVPlayerItem.Status? {
+    get {
+      return self.playerItem?.status
+    }
+  }
+  
+  required init?(coder: NSCoder) {
+    fatalError("init(coder:) has not been implemented")
+  }
+  
+  override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
+    super.init(nibName: nil, bundle: nil)
+    self.player = AVQueuePlayer()
+    
+    self.delegate = self
+    self.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
+    self.view.backgroundColor = .clear
+    self.showsPlaybackControls = false
+    self.allowsPictureInPicturePlayback = false
+    self.entersFullScreenWhenPlaybackBegins = true
+    self.updatesNowPlayingInfoCenter = false
+    if #available(iOS 16.0, *) {
+      self.allowsVideoFrameAnalysis = false
+    }
+    
+    self.player?.actionAtItemEnd = .pause
+    self.player?.volume = .zero
+  }
+
+  func setFrame(rect: CGRect) {
+    self.view.frame = rect
+  }
+  
+  public override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
+    if keyPath == "status", let playerItem = object as? AVPlayerItem {
+      if playerItem.status == .readyToPlay, let player = self.player as? AVQueuePlayer {
+        // GIFs frequently have some black frames at the end of the video. To account for that, we offset the duration by 100ms,
+        // which should be enough frames to prevent a flicker.
+        player.play()
+        self.setLooper()
+      }
+    }
+  }
+  
+  private func setLooper() {
+    guard let player = self.player as? AVQueuePlayer, let playerItem = self.playerItem else {
+      return
+    }
+    
+    let duration = playerItem.duration
+    self.playerLooper = AVPlayerLooper(
+      player: player,
+      templateItem: playerItem,
+      timeRange: CMTimeRange(
+        start: CMTime(value: 0, timescale: duration.timescale),
+        duration: CMTime(value: duration.value - 100, timescale: 1000)
+      )
+    )
+  }
+  
+  func initForView(_ source: String, view: ExpoBlueskyVideoPlayerView) {
+    if let playerItem = PlayerItemManager.shared.getOrAddItem(source: source) {
+      playerItem.addObserver(self, forKeyPath: "status", options: [.old, .new], context: nil)
+      self.isInUse = true
+      self.source = source
+      self.playerItem = playerItem
+      self._superview = view
+      
+      if view.isPlaying, self.itemStatus == .readyToPlay {
+        self.play()
+        self.setLooper()
+      }
+    }
+  }
+  
+  func release() {
+    self.isInUse = false
+    self.pause()
+    self.source = nil
+    self.playerLooper = nil
+    self.playerItem = nil
+  }
+  
+  func play() {
+    self.player?.play()
+  }
+  
+  func pause() {
+    self.player?.pause()
+  }
+}