初步修复视频不能投屏的问题

SwiftProject/SwiftProject.xcworkspace/xcuserdata/aaa.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist

@@ -563,42 +563,10 @@
             filePath = "SwiftProject/Project/Controller/RecordingVideo/CCSpatialVideoDisplayController/CCSpatialVideoDisplayController.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "440"
+            startingLineNumber = "567"
-            endingLineNumber = "440"
+            endingLineNumber = "567"
             landmarkName = "navgationButtonClick2(sender:)"
             landmarkType = "7">
-            <Locations>
-               <Location
-                  uuid = "AC3AF843-C4D6-4749-834A-B1DCA686B7CC - 151cde592e5f7ae5"
-                  shouldBeEnabled = "Yes"
-                  ignoreCount = "0"
-                  continueAfterRunningActions = "No"
-                  symbolName = "closure #1 (Swift.Int) -&gt; () in SwiftProject.CCSpatialVideoDisplayController.navgationButtonClick2(sender: __C.UIButton) -&gt; ()"
-                  moduleName = "SwiftProject"
-                  usesParentBreakpointCondition = "Yes"
-                  urlString = "file:///Users/aaa/Documents/IOS%20Dev/VR/SwiftProject/SwiftProject/Project/Controller/RecordingVideo/CCSpatialVideoDisplayController/CCSpatialVideoDisplayController.swift"
-                  startingColumnNumber = "9223372036854775807"
-                  endingColumnNumber = "9223372036854775807"
-                  startingLineNumber = "437"
-                  endingLineNumber = "437"
-                  offsetFromSymbolStart = "608">
-               </Location>
-               <Location
-                  uuid = "AC3AF843-C4D6-4749-834A-B1DCA686B7CC - 151cde592e5f7b80"
-                  shouldBeEnabled = "Yes"
-                  ignoreCount = "0"
-                  continueAfterRunningActions = "No"
-                  symbolName = "closure #1 (Swift.Int) -&gt; () in SwiftProject.CCSpatialVideoDisplayController.navgationButtonClick2(sender: __C.UIButton) -&gt; ()"
-                  moduleName = "SwiftProject"
-                  usesParentBreakpointCondition = "Yes"
-                  urlString = "file:///Users/aaa/Documents/IOS%20Dev/VR/SwiftProject/SwiftProject/Project/Controller/RecordingVideo/CCSpatialVideoDisplayController/CCSpatialVideoDisplayController.swift"
-                  startingColumnNumber = "9223372036854775807"
-                  endingColumnNumber = "9223372036854775807"
-                  startingLineNumber = "442"
-                  endingLineNumber = "442"
-                  offsetFromSymbolStart = "608">
-               </Location>
-            </Locations>
          </BreakpointContent>
       </BreakpointProxy>
       <BreakpointProxy

SwiftProject/SwiftProject/AppDelegate.swift

@@ -18,7 +18,7 @@ import UIKit
 import SVProgressHUD
 import Firebase
 import FirebaseCore
-
+import AVFoundation
 @main
 
 
@@ -28,9 +28,17 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 //    var root:RootManager?
     var newWindow:UIWindow?
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
-//        Task {
+        
-            FirebaseApp.configure()
+        FirebaseApp.configure()
-//        }
+
+        do {
+            try AVAudioSession.sharedInstance().setActive(true)
+            try AVAudioSession.sharedInstance().setCategory(.playback,options: .allowAirPlay)
+        }
+        catch {
+            print("err: set audiosession:\(error)")
+        }
+        
         
         SVProgressHUD.setDefaultStyle(.dark)
         

SwiftProject/SwiftProject/ExternalScreen/ExternalSceneDelegate.swift

@@ -6,6 +6,8 @@
 //
 
 import UIKit
+import AVKit
+import AVFoundation
 
 class ExternalSceneDelegate: UIResponder, UIWindowSceneDelegate {
 
@@ -14,13 +16,19 @@ class ExternalSceneDelegate: UIResponder, UIWindowSceneDelegate {
 
     func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
         print("ExternalSceneDelegate scene.......")
-        
+//        let ac  = UISceneActivationConditions()
+//        ac.canActivateForTargetContentIdentifierPredicate = NSPredicate(value: true)
+//        ac.prefersToActivateForTargetContentIdentifierPredicate = NSPredicate(value: true)
+//        scene.activationConditions = ac
 //        self.window?.rootViewController =  ZZHExternalViewController()
 //        guard let _ = (scene as? UIWindowScene) else { return }
 //        guard let rootViewController = window?.rootViewController else {
 //            return
 //        }
         
+        
+        
+        
     }
 
     func sceneDidDisconnect(_ scene: UIScene) {
@@ -36,6 +44,7 @@ class ExternalSceneDelegate: UIResponder, UIWindowSceneDelegate {
         // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
         print("ExternalSceneDelegate sceneDidBecomeActive")
     }
+    
 
     func sceneWillResignActive(_ scene: UIScene) {
         // Called when the scene will move from an active state to an inactive state.

SwiftProject/SwiftProject/ExternalScreen/ZZHExternalViewController.swift

@@ -7,10 +7,14 @@
 
 import Foundation
 import UIKit
+import AVKit
+
 class ZZHExternalViewController: UIViewController {
     
     var imageView: UIImageView?
-    
+//    var avplayerController:AVPlayerViewController?
+//    var player:AVPlayer?
+    var playerLayer:AVPlayerLayer?
     override func viewDidLoad() {
         super.viewDidLoad()
         print("ZZHExternalViewController viewDidLoad..")
@@ -22,5 +26,17 @@ class ZZHExternalViewController: UIViewController {
             make.left.top.right.bottom.equalTo(0)
         })
         
+        
+//        player = AVPlayer()
+        playerLayer = AVPlayerLayer()
+        playerLayer!.frame = self.view.bounds
+        self.view.layer.addSublayer(playerLayer!)
+////        player?.allowsExternalPlayback = true
+////        player?.usesExternalPlaybackWhileExternalScreenIsActive = true
+//        avplayerController = AVPlayerViewController()
+//        avplayerController?.player = player
+//        self.addChild(avplayerController!)
+//        self.view.addSubview(avplayerController!.view)
+//        avplayerController!.view.frame = self.view.bounds
     }
 }

SwiftProject/SwiftProject/Info.plist

@@ -39,5 +39,9 @@
 			</array>
 		</dict>
 	</dict>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>audio</string>
+	</array>
 </dict>
 </plist>

SwiftProject/SwiftProject/Project/Controller/RecordingVideo/CCSpatialPhotoDisplayController/CCSpatialPhotoDisplayController.swift

@@ -278,85 +278,22 @@ class CCSpatialPhotoDisplayController: BaseController {
                     externalVC = ws.windows.first?.rootViewController as? ZZHExternalViewController
                     externalDispalylink = ws.windows.first?.screen.displayLink(withTarget: self, selector: #selector(displayUpdate(caDisplayLink:)))
                     externalDispalylink?.add(to: RunLoop.main, forMode: RunLoop.Mode.common)
-    
+                    externalVC?.imageView?.isHidden = false
+                    externalVC?.playerLayer?.isHidden = true
                 }
             }
-            // 获取所有打开的会话
-//            let sessions:Set<UISceneSession> = UIApplication.shared.openSessions
-//            sessions.forEach { ss in
-//                print("role:\(ss.role.rawValue)")
-//            }
-//            // 过滤会话以找到来自其他屏幕的场景
-//            let otherScreenSessions:Set<UISceneSession> = sessions.filter {
-//                $0.role.rawValue.contains("External")
-//            }
-//            
-//            otherScreenSessions.forEach { ssn in
-//                print("ssn role:\(ssn.role.rawValue)  first:\(otherScreenSessions.first)")
-//            }
-//            
-//            UIApplication.shared.connectedScenes.forEach { us in
-//                print("conn sc:\(us)")
-//            }
-            
-            
-            
-//            if let session = otherScreenSessions.first{
-//                let ssar = UISceneSessionActivationRequest.init(session: session)
-//                UIApplication.shared.activateSceneSession(for: ssar) { err in
-//                    print("error:\(err)")
-//                }
-//                guard let scene = session.scene else {
-//                    return
-//                }
-//                self.externalWindow.windowScene = scene as! UIWindowScene
-//                let nvc = UIViewController()
-//                self.externalWindow.rootViewController = nvc
-//                var imageView = UIImageView(frame: CGRectMake(0, 0, KScreenHeight*2, KScreenHeight*2))
-//                imageView.contentMode = .scaleAspectFit
-//                externalImageView = imageView
-//                nvc.view.addSubview(imageView)
-//                self.externalWindow.isHidden = false
-//                var dispalylink:CADisplayLink? = self.externalWindow.windowScene?.windows.first?.screen.displayLink(withTarget: self, selector: #selector(displayUpdate(caDisplayLink:)))
-//                dispalylink?.add(to: RunLoop.main, forMode: RunLoop.Mode.common)
-//            }
-//            else {
-//                print("未发现外接屏....")
-//            }
         }
         else{
             print("变化为 断开。。。。")
             externalVC = nil
             externalDispalylink?.invalidate()
             externalDispalylink = nil
-//            if let imv = externalImageView{
-//                imv .removeFromSuperview()
-//            }
-//            externalImageView = nil
-//            self.externalWindow.isHidden = true
-//            self.externalWindow.rootViewController = nil
-            
-            
         }
     }
     
-//    @objc func hasNewWindowExternal(notification:Notification){
+
-//        print("hasNewWindowExternal notifi...")
-//        let window = notification.userInfo?["newwindow"] as! UIWindow
-//        let imageView = UIImageView(frame: CGRectMake(0, 0, KScreenHeight*2, KScreenHeight*2))
-//        imageView.contentMode = .scaleAspectFit
-//        externalImageView = imageView
-//        window.rootViewController?.view.addSubview(imageView)
-//        let dispalylink:CADisplayLink? = window.screen.displayLink(withTarget: self, selector: #selector(displayUpdate(caDisplayLink:)))
-//        dispalylink?.add(to: RunLoop.main, forMode: RunLoop.Mode.common)
-//        
-//    }
     
     @objc func displayUpdate(caDisplayLink:CADisplayLink) {
-//        if externalImageView?.image != mImgView.image {
-//            externalImageView?.image = mImgView.image
-//        }
-        
         if let has_exvc = externalVC {
             has_exvc.imageView?.image = mImgView.image
         }

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

@@ -31,7 +31,8 @@ enum SpatialType : Int {
 }
 
 class CCSpatialVideoDisplayController: BaseController {
-    
+    var externalDispalylink:CADisplayLink?
+    var externalVC:ZZHExternalViewController?
     var isAirPlayActive:Bool = false {
         didSet{
             //跟新selectedIndex、typeData的值
@@ -53,7 +54,10 @@ class CCSpatialVideoDisplayController: BaseController {
                                  (icon:"type_check",title:NSLocalizedString("交叉眼", comment: ""),isHiden:false)]
             }
             //更新串流UI
-            setttinisScreenMirroring(isScreenMirroring: isAirPlayActive)
+//            DispatchQueue.main.asyncAfter(deadline: .now() + 5, execute: {
+                self.setttinisScreenMirroring(isScreenMirroring: self.isAirPlayActive)
+//            })
+            
         }
         
 
@@ -231,7 +235,7 @@ class CCSpatialVideoDisplayController: BaseController {
             await self.loadVideoAssetReader()
             DispatchQueue.main.async {
                 self.configureInfo()
-                print("ccs viewdid load   +++++++")
+//                print("ccs viewdid load   +++++++")
                 // 检查当前是否已连接到 AirPlay 设备
                 self.checkAirPlayStatus()
             }
@@ -241,9 +245,14 @@ class CCSpatialVideoDisplayController: BaseController {
     func configureInfo(){
         
         print("getPlayerItem  ========")
-        let playerItem = self.getPlayerItem()
+//        let playerItem = self.getPlayerItem()
+        
+//        player = AVPlayer(playerItem: playerItem)
+        player = AVPlayer()
+        player?.allowsExternalPlayback = true
+        player?.usesExternalPlaybackWhileExternalScreenIsActive = true
+        
         
-        player = AVPlayer(playerItem: playerItem)
         print("getPlayerItem  >>>>>>>")
         self.view.backgroundColor = UIColor(hexString: "#060507")
         
@@ -264,15 +273,17 @@ class CCSpatialVideoDisplayController: BaseController {
         playerController?.view.frame = CGRect.init(x: 0, y: 170, width: self.view.frame.size.width, height: 400)
         self.addChild(playerController!)
         self.view.addSubview(playerController!.view)
-        
-        
         self.view.addSubview(tipsButton)
         
         
         
         
         // 监听 AirPlay 设备的连接状态
-        NotificationCenter.default.addObserver(self, selector: #selector(airPlayStatusDidChange(_:)), name: AVAudioSession.routeChangeNotification, object: nil)
+        //添加外接屏幕链接通知
+        NotificationCenter.default.addObserver(self, selector: #selector(exScreenWillConnectNotification(notification:)), name: UIScene.willConnectNotification, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(exScreenDisConnectNotification(notification:)), name: UIScene.didDisconnectNotification, object: nil)
+        
+        
         
        
         NotificationCenter.default.addObserver(self, selector: #selector(notification_PlayerEndTime(notification:)), name: AVPlayerItem.didPlayToEndTimeNotification, object: nil)
@@ -291,10 +302,16 @@ class CCSpatialVideoDisplayController: BaseController {
     
     override func viewDidDisappear(_ animated: Bool) {
         super.viewDidDisappear(animated)
+        if externalVC != nil {
+            externalVC?.playerLayer?.player = nil
+        }
         player?.pause()
+        releaseVideoComposition()
+        
         let sec:TimeInterval = ZZHHelper.getSecFromUserDefaultByKey(kNowTimeToUserDefaultKey_VideoDisplayController)
         Analytics.logEvent("preview_pv", parameters: ["refer_page":"视频预览页面","duration":sec])
         
+        
     }
     
     override func viewWillDisappear(_ animated: Bool) {
@@ -304,7 +321,31 @@ class CCSpatialVideoDisplayController: BaseController {
     
     override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
+       
+        if self.player?.currentItem == nil {//此处需要判断是否为空:1,在didload的时候会设置一次,在viewDidDisappear的时候会被置空
+            let playerItem = self.getPlayerItem()
+            self.player?.replaceCurrentItem(with: playerItem)
+        }
         
+        if self.externalVC != nil {//恢复外接屏幕的视频播放
+            if  self.externalVC?.playerLayer?.player == nil {
+                self.activeSession()
+                self.externalVC?.playerLayer?.player = self.player
+            }
+        }
+        self.player?.play()
+//        else if self.playerController?.player {
+//            let playerItem = self.getPlayerItem()
+//            Task {
+//                print("ccs viewdid load   ---------")
+//                await self.loadVideoAssetReader()
+//                DispatchQueue.main.async {[weak self] in
+//                    self?.player?.replaceCurrentItem(with: playerItem)
+//                    self?.player?.play()
+//                }
+//            }
+//        }
+         
     }
     
     //MARK: - 监听设备投流
@@ -320,6 +361,17 @@ class CCSpatialVideoDisplayController: BaseController {
         }
     }
     
+    @objc func exScreenWillConnectNotification(notification:Notification){
+        print("exScreenWillConnectNotification>>>>>")
+        airPlayStatusDidChange( notification)
+    }
+    
+    @objc func exScreenDisConnectNotification(notification:Notification){
+        print("exScreenDisConnectNotification>>>>>")
+        airPlayStatusDidChange( notification)
+    }
+    
+    
     private func checkAirPlayStatus() {
         print("设备连接变化")
         
@@ -331,74 +383,149 @@ class CCSpatialVideoDisplayController: BaseController {
     }
     
     func setttinisScreenMirroring(isScreenMirroring:Bool){
-        //已连接
+        releaseVideoComposition()
-        if(isScreenMirroring){
+        
-            print("已连接")
+                //已连接
-            link = true
+                if(isScreenMirroring){
-            isPlaying = true
+                    self.dealTaskWhenExternalScreenConnect()
-            playerController!.player!.usesExternalPlaybackWhileExternalScreenIsActive = true
+                    
-            playerController!.player!.allowsExternalPlayback = true
+                    
-            
+                }else{
-            //串流播放中
+                    //未连接
-            mTopCenterTypeButton.setImage(UIImage.init(named: "linked_button"), for: .normal)
+                    self.dealTaskWhenExternalScreenDisConnect()
-            mTopCenterTypeButton.setTitleColor(UIColor(hexString: "#D0C0FF"), for: .normal)
+                }
-            mTopCenterTypeButton.layer.borderColor = UIColor(hexString: "#D0C0FF").cgColor
+        
-            mTopCenterTypeButton.backgroundColor = UIColor(hexString: "#5326D6")
+        
-            mTopCenterTypeButton.updateBtnEdgeInsets(style: .Left, space: 5)
+    }
-            
+    
-
+    //激活一下session
-            //展示弹出列表尾部
+    func activeSession(){
-            if isPlaying {
+        do {
-                //正在串流中 --- 按钮显示为【结束串流】
+            try AVAudioSession.sharedInstance().setActive(true)
-                menuView.showFooterView(isShow: true, showText: NSLocalizedString("结束串流", comment: ""))
+            try AVAudioSession.sharedInstance().setCategory(.playback,options: .allowAirPlay)
-                mTopCenterTypeButton.setTitle(NSLocalizedString("外部串流中", comment: ""), for: UIControl.State.normal)
+        }
-            }else{
+        catch {
-                //未串流 --- 按钮显示为【开始串流】
+            print("err: set audiosession:\(error)")
-                menuView.showFooterView(isShow: true, showText: NSLocalizedString("开始串流", comment: ""))
-                mTopCenterTypeButton.setTitle(NSLocalizedString("已连接外部设备", comment: ""), for: UIControl.State.normal)
-            }
-            
-            
-        }else{
-            //未连接
-            print("未连接")
-            link = false
-            isPlaying = false
-            // 当前未连接到 AirPlay 设备
-            playerController!.player!.usesExternalPlaybackWhileExternalScreenIsActive = false
-            playerController!.player!.allowsExternalPlayback = false
-            
-            if self.selectedIndex == .monocular2D {
-                mTopCenterTypeButton.setTitle(NSLocalizedString("单眼2D", comment: ""), for: UIControl.State.normal)
-            }else if self.selectedIndex == .redBlueSolid {
-                mTopCenterTypeButton.setTitle(NSLocalizedString("红蓝立体", comment: ""), for: UIControl.State.normal)
-            }else if self.selectedIndex == .crossedEyes {
-                mTopCenterTypeButton.setTitle(NSLocalizedString("交叉眼", comment: ""), for: UIControl.State.normal)
-            }
-            else if self.selectedIndex == .parallelEyes {
-                mTopCenterTypeButton.setTitle(NSLocalizedString("平行眼", comment: ""), for: UIControl.State.normal)
-            }
-            
-            mTopCenterTypeButton.setImage(UIImage.init(named: "type_button_arrow_down"), for: .normal)
-            mTopCenterTypeButton.setTitleColor(UIColor.white, for: UIControl.State.normal)
-            mTopCenterTypeButton.layer.borderColor = UIColor.white.cgColor
-            mTopCenterTypeButton.backgroundColor = UIColor(hexString: "#1F1E20")
-            mTopCenterTypeButton.updateBtnEdgeInsets(style: .Right, space: 10)
-            
-            //隐藏弹出列表尾部
-            menuView.showFooterView(isShow: false, showText: "")
-            
         }
     }
     
+    //当外接屏幕连接时
+    func dealTaskWhenExternalScreenConnect(){
+        if link == true {
+            return
+        }
+        
+        link = true
+        isPlaying = true
+        let playerItem = self.getPlayerItem()
+        player?.replaceCurrentItem(with: playerItem)
+        print("外接屏幕已连接.....")
+        activeSession()
+        
+        UIApplication.shared.connectedScenes.forEach { us in
+            print("uisence:\(us)\n")
+            let ws = us as! UIWindowScene
+            if ws.session.role.rawValue == "UIWindowSceneSessionRoleExternalDisplayNonInteractive"{
+                externalVC = ws.windows.first?.rootViewController as? ZZHExternalViewController
+                if let evc = externalVC {
+                    if let ed = externalDispalylink {
+                        externalDispalylink?.invalidate()
+                        externalDispalylink = nil
+                    }
+                    externalDispalylink = ws.windows.first?.screen.displayLink(withTarget: self, selector: #selector(displayUpdate(caDisplayLink:)))
+                    externalDispalylink?.add(to: RunLoop.main, forMode: RunLoop.Mode.common)
+                    
+                }
+                
+            }
+        }
+        
+        
+        //串流播放中
+        mTopCenterTypeButton.setImage(UIImage.init(named: "linked_button"), for: .normal)
+        mTopCenterTypeButton.setTitleColor(UIColor(hexString: "#D0C0FF"), for: .normal)
+        mTopCenterTypeButton.layer.borderColor = UIColor(hexString: "#D0C0FF").cgColor
+        mTopCenterTypeButton.backgroundColor = UIColor(hexString: "#5326D6")
+        mTopCenterTypeButton.updateBtnEdgeInsets(style: .Left, space: 5)
+        
+
+        //展示弹出列表尾部
+        if isPlaying {
+            //正在串流中 --- 按钮显示为【结束串流】
+            menuView.showFooterView(isShow: true, showText: NSLocalizedString("结束串流", comment: ""))
+            mTopCenterTypeButton.setTitle(NSLocalizedString("外部串流中", comment: ""), for: UIControl.State.normal)
+        }else{
+            //未串流 --- 按钮显示为【开始串流】
+            menuView.showFooterView(isShow: true, showText: NSLocalizedString("开始串流", comment: ""))
+            mTopCenterTypeButton.setTitle(NSLocalizedString("已连接外部设备", comment: ""), for: UIControl.State.normal)
+        }
+    }
+    
+    //当外接屏幕断开时
+    func dealTaskWhenExternalScreenDisConnect(){
+        print("外接屏幕已断开.....")
+        let playerItem = self.getPlayerItem()
+        player?.replaceCurrentItem(with: playerItem)
+        
+        link = false
+        isPlaying = false
+        // 当前未连接到 AirPlay 设备
+        if self.selectedIndex == .monocular2D {
+            mTopCenterTypeButton.setTitle(NSLocalizedString("单眼2D", comment: ""), for: UIControl.State.normal)
+        }else if self.selectedIndex == .redBlueSolid {
+            mTopCenterTypeButton.setTitle(NSLocalizedString("红蓝立体", comment: ""), for: UIControl.State.normal)
+        }else if self.selectedIndex == .crossedEyes {
+            mTopCenterTypeButton.setTitle(NSLocalizedString("交叉眼", comment: ""), for: UIControl.State.normal)
+        }
+        else if self.selectedIndex == .parallelEyes {
+            mTopCenterTypeButton.setTitle(NSLocalizedString("平行眼", comment: ""), for: UIControl.State.normal)
+        }
+        
+        mTopCenterTypeButton.setImage(UIImage.init(named: "type_button_arrow_down"), for: .normal)
+        mTopCenterTypeButton.setTitleColor(UIColor.white, for: UIControl.State.normal)
+        mTopCenterTypeButton.layer.borderColor = UIColor.white.cgColor
+        mTopCenterTypeButton.backgroundColor = UIColor(hexString: "#1F1E20")
+        mTopCenterTypeButton.updateBtnEdgeInsets(style: .Right, space: 10)
+        
+        //隐藏弹出列表尾部
+        menuView.showFooterView(isShow: false, showText: "")
+        externalVC?.playerLayer?.player = nil
+        self.playerController?.player = player
+        player?.play()
+    }
+    
+    @objc func displayUpdate(caDisplayLink:CADisplayLink) {
+        if let has_exvc = externalVC {
+            if has_exvc.playerLayer?.player == nil {
+                has_exvc.imageView?.isHidden = true
+                has_exvc.playerLayer?.isHidden = false
+                self.playerController?.player = nil
+                has_exvc.playerLayer?.player = player
+                player?.play()
+//                externalDispalylink?.invalidate()
+//                externalDispalylink = nil
+            }
+        }
+        
+    }
+    
+    
     deinit {
         print("patialvideodisplaycontroler deinit......")
-        self.player?.currentItem?.videoComposition = nil
+        releaseVideoComposition()
-        
         assetReader?.cancelReading()
         NotificationCenter.default.removeObserver(self)
     }
     
+    func releaseVideoComposition()  {
+        if let ed = externalDispalylink {
+            externalDispalylink?.invalidate()
+            externalDispalylink = nil
+        }
+        self.player?.currentItem?.videoComposition = nil
+        self.player?.replaceCurrentItem(with: nil)
+    }
+    
     
     //MARK: - action
     @objc public func navgationButtonClick2(sender:UIButton){

SwiftProject/SwiftProject/Project/Controller/RecordingVideo/VRVideoTransformController.swift

@@ -113,6 +113,11 @@ class VRVideoTransformController: BaseController {
         Analytics.logEvent("transcode_video_pv", parameters: ["refer_page":"视频转码页面","duration":sec])
     }
     
+    override func viewWillDisappear(_ animated: Bool) {
+        super.viewWillDisappear(animated)
+        self.mAvPlayer?.player?.pause()
+    }
+    
     deinit {
         print("deinit--class:\(String(describing: object_getClass(self))) objc:\(self)")
     }