AVPlayer内容显示不正确

Question

玩家正在播放内容，但不能完全显示

我需要明智地更改代码

代码库

 NSLog(@"playerURL %@",self->playerURL);

 if ((([self->playerURL rangeOfString:@".ts"].location == NSNotFound && [self->playerURL rangeOfString:@".mpd"].location == NSNotFound))) {

            self->isFailed=false;

            self->isCustomViewShowing=false;


            NSMutableDictionary * headers = [NSMutableDictionary dictionary];

            [headers setObject:@"EvueNowMobilePadApplication" forKey:@"User-Agent"];


            AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:[NSURL URLWithString:self->playerURL] options:@{@"AVURLAssetHTTPHeaderFieldsKey" : headers}];

            AVAssetResourceLoader *loader = [asset resourceLoader];
            [loader setDelegate:self queue:dispatch_get_main_queue()];

            self->playerItem =[AVPlayerItem playerItemWithAsset:asset];
            AVPlayer* videoPlayer=[[AVPlayer alloc]initWithPlayerItem:self->playerItem];

            self.player=videoPlayer;
            self.showsPlaybackControls=NO;

            self.player.appliesMediaSelectionCriteriaAutomatically=FALSE;

            BOOL ccEnable= [[NSUserDefaults standardUserDefaults] boolForKey:@"closedCaptionStatus"];

            [self.player setClosedCaptionDisplayEnabled:ccEnable];

            [self.player replaceCurrentItemWithPlayerItem:self->playerItem];
//            [self.player seekToTime:CMTimeMake(self->seekValue, 1)];
            [self.player play];

            [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(playerItemDidReachEnd:)name:AVPlayerItemDidPlayToEndTimeNotification object:[self.player currentItem]];

            [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(playerItemDidFail:)name:AVPlayerItemFailedToPlayToEndTimeNotification object:[self.player currentItem]];

           [self.player.currentItem addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionInitial | NSKeyValueObservingOptionPrior context:nil];
//
//            [self.player addObserver:self forKeyPath:@"rate" options:0 context:nil];
//
            [self.player.currentItem addObserver:self forKeyPath:@"playbackBufferEmpty" options:NSKeyValueObservingOptionNew context:nil];
            CMTime duration = self.player.currentItem.asset.duration;
            float seconds = CMTimeGetSeconds(duration);
            NSLog(@"duration: %f", seconds);

//            [self.player.currentItem addObserver:self forKeyPath:@"playbackLikelyToKeepUp" options:NSKeyValueObservingOptionNew context:nil];
            UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(menuBtnSelectedInEASPlayer:)];
            tapGesture.allowedPressTypes = @[@(UIPressTypeMenu)];
            [self.view addGestureRecognizer:tapGesture];

        }
        else{

            self->isFailed=true;

        }
    });

    isCustomViewShowing=true;

  }