视频转码修改，但是还存在一个必现的bug

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

@@ -515,8 +515,8 @@
             filePath = "SwiftProject/Project/Controller/RecordingVideo/CCSpatialVideoDisplayController/CCSpatialVideoDisplayForVideoTask.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "83"
+            startingLineNumber = "63"
-            endingLineNumber = "83"
+            endingLineNumber = "63"
             landmarkName = "convertFrame(request:)"
             landmarkType = "7">
             <Locations>
@@ -563,8 +563,8 @@
             filePath = "SwiftProject/Project/Controller/RecordingVideo/CCSpatialVideoDisplayController/CCSpatialVideoDisplayForVideoTask.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "87"
+            startingLineNumber = "67"
-            endingLineNumber = "87"
+            endingLineNumber = "67"
             landmarkName = "convertFrame(request:)"
             landmarkType = "7">
             <Locations>
@@ -611,8 +611,8 @@
             filePath = "SwiftProject/Project/Controller/RecordingVideo/CCSpatialVideoDisplayController/CCSpatialVideoDisplayController.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "437"
+            startingLineNumber = "440"
-            endingLineNumber = "437"
+            endingLineNumber = "440"
             landmarkName = "navgationButtonClick2(sender:)"
             landmarkType = "7">
          </BreakpointContent>

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

@@ -21,16 +21,16 @@ enum SpatialType : Int {
      
      */
     
-    case monocular2D
+    case monocular2D = 1
-    case parallelEyes
+    case parallelEyes = 0
-    case redBlueSolid
+    case redBlueSolid = 2
-    case crossedEyes
+    case crossedEyes = 3
     //以下两种标记：外部串流时使用
-    case hsbs
+    case hsbs = 4
-    case fsbs
+    case fsbs = 5
 }
 
-class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDelegate {
+class CCSpatialVideoDisplayController: BaseController {
     
     var isAirPlayActive:Bool = false {
         didSet{
@@ -43,11 +43,14 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
             }
             else{
                 selectedIndex = .parallelEyes//在非串流模式下，默认选项为monocular2D
-                typeData = [(icon:"type_check",title:"平行眼",isHiden:false),
+                typeData = [
-                                 (icon:"type_check",title:"单眼2D",isHiden:false),
+                    (icon:"type_check",title:NSLocalizedString("平行眼", comment: ""),isHiden:false),
+                    (icon:"type_check",title:NSLocalizedString("单眼2D", comment: ""),isHiden:false),
                             
-                                 (icon:"type_check",title:"红蓝立体",isHiden:false),
+                                 
-                                 (icon:"type_check",title:"交叉眼",isHiden:false)]
+                                 
+                                 (icon:"type_check",title:NSLocalizedString("红蓝立体", comment: ""),isHiden:false),
+                                 (icon:"type_check",title:NSLocalizedString("交叉眼", comment: ""),isHiden:false)]
             }
             //更新串流UI
             setttinisScreenMirroring(isScreenMirroring: isAirPlayActive)
@@ -86,15 +89,10 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
     
     //图片源数据
     var sourceVideoURL:URL?
-    let outputVideoURL:URL = URL.documentsDirectory.appending(path:"output1111.mp4")
-    
-    
     var imgData:Data?
 
     var player:AVPlayer?
-    
+//    var needRestReaderTimeRange = false//标识是否需呀重置时间读取范围
-//    var playerLay:AVPlayerLayer?
-    
     var playerController:AVPlayerViewController?
     
     lazy var mTopImgView:UIImageView = {
@@ -139,7 +137,7 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
         button.layer.cornerRadius = 18
         button.layer.borderWidth = 1
         button.layer.borderColor = UIColor.white.cgColor
-        button.setTitle("平行眼", for: UIControl.State.normal)
+        button.setTitle(NSLocalizedString("平行眼", comment: ""), for: UIControl.State.normal)
         button.setImage(UIImage.init(named: "type_button_arrow_down"), for: .normal)
         button.updateBtnEdgeInsets(style: .Right, space: 10)
         button.setTitleColor(UIColor.white, for: UIControl.State.normal)
@@ -149,11 +147,11 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
     
     
     
-    var typeData:[(icon:String,title:String,isHiden:Bool)] = [(icon:"type_check",title:"平行眼",isHiden:false),
+    var typeData:[(icon:String,title:String,isHiden:Bool)] = [(icon:"type_check",title:NSLocalizedString("平行眼", comment: ""),isHiden:false),
-                                                              (icon:"type_check",title:"单眼2D",isHiden:false),
+                                                              (icon:"type_check",title:NSLocalizedString("单眼2D", comment: ""),isHiden:false),
                                                               
-                                                              (icon:"type_check",title:"红蓝立体",isHiden:false),
+                                                              (icon:"type_check",title:NSLocalizedString("红蓝立体", comment: ""),isHiden:false),
-                                                              (icon:"type_check",title:"交叉眼",isHiden:false)]
+                                                              (icon:"type_check",title:NSLocalizedString("交叉眼", comment: ""),isHiden:false)]
     {
         didSet {
             menuView.setData(datas: self.typeData)
@@ -209,14 +207,15 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
     
     //监听播放完毕
     @objc func notification_PlayerEndTime(notification:Notification){
-//        print("PlayerEndTime....")
+        print("PlayerEndTime....")
+//        needRestReaderTimeRange = true
     }
     
     //监听拖动播放的进度事件
     @objc func notification_PlayerTimeJump(notification:Notification){
+//        needRestReaderTimeRange = true
 
-
+        print("time jump....")
-//        print("time jump....")
         
         
     }
@@ -230,8 +229,16 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
         Task {
             print("ccs viewdid load   ---------")
             await self.loadVideoAssetReader()
+            DispatchQueue.main.async {
+                self.configureInfo()
                 print("ccs viewdid load   +++++++")
+                // 检查当前是否已连接到 AirPlay 设备
+                self.checkAirPlayStatus()
             }
+        }
+    }
+    
+    func configureInfo(){
         
         print("getPlayerItem  ========")
         let playerItem = self.getPlayerItem()
@@ -253,11 +260,12 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
 
         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!)
         self.view.addSubview(playerController!.view)
+        
+        
         self.view.addSubview(tipsButton)
         
         
@@ -265,163 +273,38 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
         
         // 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)
+        NotificationCenter.default.addObserver(self, selector: #selector(notificatin_failedToPlayToEndTimeNotification(notifiation: )), name: AVPlayerItem.failedToPlayToEndTimeNotification, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(notificatin_failedToPlayToEndTimeNotification(notifiation: )), name: AVPlayerItem.newErrorLogEntryNotification, object: nil)
     }
     
-    func getPlayerItem() -> AVPlayerItem {
+    @objc func notificatin_failedToPlayToEndTimeNotification(notifiation:Notification) {
-        let temItem = AVPlayerItem(asset: self.videoOriginalAsset)
+        print("notificatin_failedToPlayToEndTimeNotification....")
-        //实时播放回调可以做滤镜操作
-        temItem.videoComposition = AVVideoComposition(asset: temItem.asset) { [weak self] request in
-            guard let weakSelf = self else {
-                print("self 被销毁了.....")
-                return
-            }
-            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 weakSelf.selectedIndex {
-                case .crossedEyes://交叉眼
-                    guard let ao = weakSelf.assetOutput else {
-                        print("assetOutput 应该是没有被创建成功.....")
-                        return
-                    }
-                    while let nextSampleBuffer = ao.copyNextSampleBuffer() {
-                    }
-                    ao.reset(forReadingTimeRanges:[NSValue(timeRange: tr)])
-                    
-                    
-                    ciImg = weakSelf.videoTranserConvertor.convertVideo(asset: weakSelf.videoOriginalAsset, assetOutput: ao, type: weakSelf.selectedIndex, time: compositionTime)
-                    break
-                
-                
-                case .fsbs://3d全宽
-                    guard let ao = weakSelf.assetOutput else {
-                        return
-                    }
-                    while let nextSampleBuffer = ao.copyNextSampleBuffer() {
-                    }
-                    ao.reset(forReadingTimeRanges:[NSValue(timeRange: tr)])
-                    
-                    ciImg = weakSelf.videoTranserConvertor.convertVideo(asset: weakSelf.videoOriginalAsset, assetOutput: ao, type: weakSelf.selectedIndex, time: compositionTime)
-                    break
-                
-                
-                case .hsbs://3d半宽
-                    guard let ao = weakSelf.assetOutput else {
-                        return
-                    }
-                    while let nextSampleBuffer = ao.copyNextSampleBuffer() {
-                    }
-                    ao.reset(forReadingTimeRanges:[NSValue(timeRange: tr)])
-                    
-                    
-                    ciImg = weakSelf.videoTranserConvertor.convertVideo(asset: weakSelf.videoOriginalAsset, assetOutput: ao, type: weakSelf.selectedIndex, time: compositionTime)
-                    break
-                
-                
-                case .parallelEyes://平行眼
-                    guard let ao = weakSelf.assetOutput else {
-                        return
-                    }
-                    while let nextSampleBuffer = ao.copyNextSampleBuffer() {
-
-                    }
-                    ao.reset(forReadingTimeRanges:[NSValue(timeRange: tr)])
-                    
-                    
-                    ciImg = weakSelf.videoTranserConvertor.convertVideo(asset: weakSelf.videoOriginalAsset, assetOutput: ao, type: weakSelf.selectedIndex, time: compositionTime)
-                    break
-                
-                
-                case .monocular2D://双眼2d
-                    ciImg = request.sourceImage
-                    break
-                
-                
-                case .redBlueSolid://红蓝立体
-                    guard let ao = weakSelf.assetOutput else {
-                        return
-                    }
-                    while let nextSampleBuffer = ao.copyNextSampleBuffer() {
-                    }
-                    ao.reset(forReadingTimeRanges:[NSValue(timeRange: tr)])
-                    
-                    ciImg = weakSelf.videoTranserConvertor.convertVideo(asset: weakSelf.videoOriginalAsset, assetOutput: ao, type: weakSelf.selectedIndex, time: compositionTime)
-                    break
-                
     }
     
-            if let ciImg {
+    @objc func notificatin_newErrorLogEntryNotification(notifiation:Notification) {
-                request.finish(with: ciImg, context: nil)
+        print("notificatin_newErrorLogEntryNotification....")
-            }
-            
-        }
-        return temItem
-    }
-    
-    //加载assetReader和output
-    func loadVideoAssetReader() async {
-        do {
-            if  self.assetTrack == nil {
-                assetTrack = try await self.videoOriginalAsset.loadTracks(withMediaType: .video).first!
-            }
-//            let timeRange = CMTimeRange(start: .zero, duration: .positiveInfinity)
-            let timeRange = CMTimeRange(start: .zero, duration: CMTime(value: 1, timescale: 1))
-            self.quickLoadAReader(timeRange: timeRange)
-            
-        } catch {
-            print("Error loading video: \(error)")
-        }
-    }
-    
-    func quickLoadAReader(timeRange:CMTimeRange) {
-        if(assetOutput != nil){
-            assetOutput?.markConfigurationAsFinal()
-            assetOutput = nil
-        }
-        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 viewDidDisappear(_ animated: Bool) {
         super.viewDidDisappear(animated)
-        
+        player?.pause()
         let sec:TimeInterval = ZZHHelper.getSecFromUserDefaultByKey(kNowTimeToUserDefaultKey_VideoDisplayController)
         Analytics.logEvent("preview_pv", parameters: ["refer_page":"视频预览页面","duration":sec])
-        player?.pause()
+        
     }
     
+    override func viewWillDisappear(_ animated: Bool) {
+        super.viewWillDisappear(animated)
+        
+    }
     
     override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
-        // 检查当前是否已连接到 AirPlay 设备
+        
-        checkAirPlayStatus()
     }
     
     //MARK: - 监听设备投流
@@ -469,12 +352,12 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
             //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: "结束串流")
+                menuView.showFooterView(isShow: true, showText: NSLocalizedString("结束串流", comment: ""))
-                mTopCenterTypeButton.setTitle("外部串流中", for: UIControl.State.normal)
+                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: "开始串流")
+                menuView.showFooterView(isShow: true, showText: NSLocalizedString("开始串流", comment: ""))
-                mTopCenterTypeButton.setTitle("已连接外部设备", for: UIControl.State.normal)
+                mTopCenterTypeButton.setTitle(NSLocalizedString("已连接外部设备", comment: ""), for: UIControl.State.normal)
             }
             
             
@@ -488,14 +371,14 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
             playerController!.player!.allowsExternalPlayback = false
             
             if self.selectedIndex == .monocular2D {
-                mTopCenterTypeButton.setTitle("单眼2D", for: UIControl.State.normal)
+                mTopCenterTypeButton.setTitle(NSLocalizedString("单眼2D", comment: ""), for: UIControl.State.normal)
             }else if self.selectedIndex == .redBlueSolid {
-                mTopCenterTypeButton.setTitle("红蓝立体", for: UIControl.State.normal)
+                mTopCenterTypeButton.setTitle(NSLocalizedString("红蓝立体", comment: ""), for: UIControl.State.normal)
             }else if self.selectedIndex == .crossedEyes {
-                mTopCenterTypeButton.setTitle("交叉眼", for: UIControl.State.normal)
+                mTopCenterTypeButton.setTitle(NSLocalizedString("交叉眼", comment: ""), for: UIControl.State.normal)
             }
             else if self.selectedIndex == .parallelEyes {
-                mTopCenterTypeButton.setTitle("平行眼", for: UIControl.State.normal)
+                mTopCenterTypeButton.setTitle(NSLocalizedString("平行眼", comment: ""), for: UIControl.State.normal)
             }
             
             mTopCenterTypeButton.setImage(UIImage.init(named: "type_button_arrow_down"), for: .normal)
@@ -537,12 +420,12 @@ class CCSpatialVideoDisplayController: BaseController, AVPlayerViewControllerDel
                 //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: "结束串流")
+                    menuView.showFooterView(isShow: true, showText: NSLocalizedString("结束串流", comment: ""))
-                    mTopCenterTypeButton.setTitle("外部串流中", for: UIControl.State.normal)
+                    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: "开始串流")
+                    menuView.showFooterView(isShow: true, showText: NSLocalizedString("开始串流", comment: ""))
-                    mTopCenterTypeButton.setTitle("已连接外部设备", for: UIControl.State.normal)
+                    mTopCenterTypeButton.setTitle(NSLocalizedString("已连接外部设备", comment: ""), for: UIControl.State.normal)
                 }
             }else{
                 mTopCenterTypeButton.setImage(UIImage.init(named: "type_button_arrow_up"), for: .normal)

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

@@ -0,0 +1,184 @@
+//
+//  CCSpatialVideoDisplayForVideoTask.swift
+//  SwiftProject
+//
+//  Created by aaa on 2024/3/28.
+//
+
+import Foundation
+import AVFoundation
+import Photos
+import AVKit
+import VideoToolbox
+
+extension CCSpatialVideoDisplayController {
+    func getPlayerItem() -> AVPlayerItem {
+        let temItem = AVPlayerItem(asset: self.videoOriginalAsset)
+       AVVideoComposition.videoComposition(with: temItem.asset) { [weak self] request in
+           print("正在请求解码图片frame....")
+           guard let weakSelf = self else {
+               print("self 被销毁了.....")
+               return
+           }
+           weakSelf.convertFrame(request:request)
+        } completionHandler: { ac, err in
+            if err != nil {
+                print("初始化coposition报错：\(err)")
+            }
+            else{
+                print("composition 生成ok....")
+                temItem.videoComposition = ac
+            }
+        }
+        
+        
+        
+//        let filter = CIFilter(name: "CIGaussianBlur")!
+        
+//        let composition = AVVideoComposition(asset: temItem.asset, applyingCIFiltersWithHandler: {[weak self] request in
+//            print("正在请求解码图片frame....")
+//           guard let weakSelf = self else {
+//               print("self 被销毁了.....")
+//               return
+//           }
+//           weakSelf.convertFrame(request:request)
+//            
+//            
+//        })
+//        temItem.videoComposition = composition
+        
+        return temItem
+    }
+    
+    func convertFrame(request:AVAsynchronousCIImageFilteringRequest){
+        let compositionTime = request.compositionTime
+        let end:CMTime = CMTimeMake(value: Int64(compositionTime.value+1), timescale: compositionTime.timescale)
+        let tr = CMTimeRange(start: compositionTime, end: end)
+        let tr_All = CMTimeRange(start: compositionTime, duration: .positiveInfinity)
+
+
+        var ciImg:CIImage? = nil
+        switch self.selectedIndex {
+            case .monocular2D://双眼2d
+            ciImg = request.sourceImage
+            break
+            
+        default :
+            ciImg = self.otherModeImgWithMode(mode: self.selectedIndex,tr:tr,compositionTime: compositionTime,allTime: tr_All)
+            break
+        }
+        if let ciImg {
+            print("已返回图片frame....")
+            request.finish(with: ciImg, context: nil)
+        }
+        else {
+            print("没有合成可用视频帧图片....准备用request.sourceImage替换")
+            request.finish(with: request.sourceImage, context: nil)
+        }
+    }
+    
+    func otherModeImgWithMode(mode:SpatialType,tr:CMTimeRange,compositionTime:CMTime,allTime:CMTimeRange)->CIImage? {
+        guard let ao = self.assetOutput else {
+            print("assetOutput 应该是没有被创建成功.....")
+            return nil
+        }
+//        if needRestReaderTimeRange {
+            while ao.copyNextSampleBuffer() != nil {
+                print("正在遍历。。。。1")
+            }
+            guard self.assetReader?.status == .reading else {
+                print("assetReader status:\(self.assetReader?.status) err:\(self.assetReader?.error)")
+                return nil
+            }
+            ao.reset(forReadingTimeRanges:[NSValue(timeRange: tr)])
+//        }
+        
+        
+        
+        var ciImg:CIImage? = nil
+        switch mode {
+        case .crossedEyes://交叉眼
+            ciImg = self.videoTranserConvertor.convertVideo(asset: self.videoOriginalAsset, assetOutput: ao, type: self.selectedIndex, time: compositionTime)
+            break
+        
+        
+        case .fsbs://3d全宽
+            ciImg = self.videoTranserConvertor.convertVideo(asset: self.videoOriginalAsset, assetOutput: ao, type: self.selectedIndex, time: compositionTime)
+            break
+        
+        
+        case .hsbs://3d半宽
+            ciImg = self.videoTranserConvertor.convertVideo(asset: self.videoOriginalAsset, assetOutput: ao, type: self.selectedIndex, time: compositionTime)
+            break
+        
+        
+        case .parallelEyes://平行眼
+            ciImg = self.videoTranserConvertor.convertVideo(asset: self.videoOriginalAsset, assetOutput: ao, type: self.selectedIndex, time: compositionTime)
+            break
+        
+        case .redBlueSolid://红蓝立体
+            ciImg = self.videoTranserConvertor.convertVideo(asset: self.videoOriginalAsset, assetOutput: ao, type: self.selectedIndex, time: compositionTime)
+            break
+        default:
+            break
+        }
+        return ciImg
+            
+    }
+    
+    //加载assetReader和output
+    func loadVideoAssetReader() async {
+        do {
+            if  self.assetTrack == nil {
+                assetTrack = try await self.videoOriginalAsset.loadTracks(withMediaType: .video).first!
+                print("等待loading tracks。。。。。")
+            }
+//            let timeRange = CMTimeRange(start: .zero, duration: .positiveInfinity)
+            print("加载完毕loading tracks。。。。。")
+            let timeRange = CMTimeRange(start: .zero, duration: CMTime(value: 1, timescale: 1))
+            DispatchQueue.main.async {
+                print("进入主线程loading tracks。。。。。")
+                self.quickLoadAReader(timeRange: timeRange)
+            }
+            
+            
+        } catch {
+            print("Error loading video: \(error)")
+        }
+        
+    }
+    
+    func quickLoadAReader(timeRange:CMTimeRange) {
+        if(assetOutput != nil){
+            assetOutput?.markConfigurationAsFinal()
+            assetOutput = nil
+        }
+        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()
+        //加载完毕之后再进行play
+        DispatchQueue.main.async {
+            
+            self.player!.play()
+            
+            print("资产加载完毕。。。。开始播放player\n err:\(self.player?.error)")
+        }
+        
+        
+        
+    }
+}