实现可拖动边转边播

SwiftProject/SwiftProject/Project/Controller/RecordingVideo/CCSpatialVideoDisplayController.swift

@@ -29,7 +29,7 @@ enum SpatialType : Int {
     case fsbs
 }
 
-class CCSpatialVideoDisplayController: BaseController {
+class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDelegate {
     
     var isAirPlayActive:Bool = false {
         didSet{
@@ -50,12 +50,15 @@ class CCSpatialVideoDisplayController: BaseController {
             //更新串流UI
             setttinisScreenMirroring(isScreenMirroring: isAirPlayActive)
         }
+        
+
     }
     
     var assetReader:AVAssetReader?
     
     var assetOutput:AVAssetReaderTrackOutput?
     
+    var assetTrack:AVAssetTrack?
     
     
     var link = false//是否已连接设备
@@ -68,6 +71,8 @@ class CCSpatialVideoDisplayController: BaseController {
         }
     }
     
+    
+    
     let videoTranserConvertor = PlayByTransferConvertor()
     
     lazy var videoOriginalAsset:AVAsset = {
@@ -201,14 +206,35 @@ class CCSpatialVideoDisplayController: BaseController {
     }()
     
     
+    //监听播放完毕
+    @objc func notification_PlayerEndTime(notification:Notification){
+        print("PlayerEndTime....")
+    }
+    
+    //监听拖动播放的进度事件
+    @objc func notification_PlayerTimeJump(notification:Notification){
+
+//        self.player?.play()
+//        Task {
+//            await self.loadVideoAssetReader()
+//            DispatchQueue.main.async {
+//                self.player?.play()
+//            }
+//        }
+        print("time jump....")
+        
+        
+    }
     
 
     override func viewDidLoad() {
         super.viewDidLoad()
         Task {
+            print("ccs viewdid load   ---------")
             await self.loadVideoAssetReader()
         }
         
+        
         let playerItem = self.getPlayerItem()
         player = AVPlayer(playerItem: playerItem)
         
@@ -233,6 +259,7 @@ class CCSpatialVideoDisplayController: BaseController {
         
         playerController = AVPlayerViewController()
         playerController?.player = player
+        playerController?.delegate = self
         playerController!.view.backgroundColor = .clear
         playerController?.view.frame = CGRect.init(x: 0, y: 170, width: self.view.frame.size.width, height: 400)
         self.addChild(playerController!)
@@ -244,6 +271,9 @@ class CCSpatialVideoDisplayController: BaseController {
         // 监听 AirPlay 设备的连接状态
         NotificationCenter.default.addObserver(self, selector: #selector(airPlayStatusDidChange(_:)), name: AVAudioSession.routeChangeNotification, object: nil)
         self.player!.play()
+        
+        NotificationCenter.default.addObserver(self, selector: #selector(notification_PlayerEndTime(notification:)), name: AVPlayerItem.didPlayToEndTimeNotification, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(notification_PlayerTimeJump(notification:)), name: AVPlayerItem.timeJumpedNotification, object: nil)
     }
     
     func getPlayerItem() -> AVPlayerItem {
@@ -251,6 +281,9 @@ class CCSpatialVideoDisplayController: BaseController {
         //实时播放回调可以做滤镜操作
         temItem.videoComposition = AVVideoComposition(asset: temItem.asset) { [self] request in
             let compositionTime = request.compositionTime
+            let end:CMTime = CMTimeMake(value: Int64(compositionTime.value+1), timescale: compositionTime.timescale)
+            let tr = CMTimeRange(start: compositionTime, end: end)
+            self.quickLoadAReader(timeRange: tr)
             var ciImg:CIImage? = nil
             switch self.selectedIndex {
                 case .crossedEyes://交叉眼
@@ -273,9 +306,11 @@ class CCSpatialVideoDisplayController: BaseController {
                     break
                 
             }
+            
             if let ciImg {
                 request.finish(with: ciImg, context: nil)
             }
+            
         }
         return temItem
     }
@@ -283,26 +318,42 @@ class CCSpatialVideoDisplayController: BaseController {
     //加载assetReader和output
     func loadVideoAssetReader() async {
         do {
-            if(assetReader != nil && assetReader!.status == .reading){
-                assetReader?.cancelReading()
+            if  self.assetTrack == nil {
+                assetTrack = try await self.videoOriginalAsset.loadTracks(withMediaType: .video).first!
             }
-            assetReader = try AVAssetReader(asset: self.videoOriginalAsset)
-            assetOutput = try await AVAssetReaderTrackOutput(
-                track: self.videoOriginalAsset.loadTracks(withMediaType: .video).first!,
-                outputSettings: [
-                    AVVideoDecompressionPropertiesKey: [
-                        kVTDecompressionPropertyKey_RequestedMVHEVCVideoLayerIDs: [0, 1] as CFArray,
-                    ],
-                ]
-            )
-            assetReader!.timeRange = CMTimeRange(start: .zero, duration: .positiveInfinity)
-            assetReader!.add(assetOutput!)
-            assetReader!.startReading()
+            let timeRange = CMTimeRange(start: .zero, duration: .positiveInfinity)
+            self.quickLoadAReader(timeRange: timeRange)
+            
         } catch {
             print("Error loading video: \(error)")
         }
     }
     
+    func quickLoadAReader(timeRange:CMTimeRange) {
+        if(assetOutput != nil){
+            assetOutput?.markConfigurationAsFinal()
+        }
+        if(assetReader != nil){
+            assetReader?.cancelReading()
+        }
+        assetReader = try! AVAssetReader(asset: self.videoOriginalAsset)
+        
+        assetOutput = AVAssetReaderTrackOutput(
+            track: self.assetTrack!,
+            outputSettings: [
+                AVVideoDecompressionPropertiesKey: [
+                    kVTDecompressionPropertyKey_RequestedMVHEVCVideoLayerIDs: [0, 1] as CFArray,
+                ],
+            ]
+        )
+        assetOutput?.supportsRandomAccess = true
+        assetReader!.timeRange = timeRange
+        assetReader!.add(assetOutput!)
+        assetReader!.startReading()
+        
+        
+    }
+    
     override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
         // 检查当前是否已连接到 AirPlay 设备
@@ -388,6 +439,8 @@ class CCSpatialVideoDisplayController: BaseController {
     }
     
     deinit {
+        print("patialvideodisplaycontroler deinit......")
+        assetReader?.cancelReading()
         NotificationCenter.default.removeObserver(self)
     }
     
@@ -530,5 +583,10 @@ class CCSpatialVideoDisplayController: BaseController {
             }
             return isSpatialVideo
     }
+    
+    
+    
+    //AVPlayerViewControllerDelegate
+    
 
 }