Objective-C 如何立即在 MPMoviePlayerController 或 AVPlayer 上播放视频，没有延迟？

Question

我曾尝试在 AVPlayer 和 MPMoviePlayerController 上播放 500 KB 的视频，但它们都有一些令人讨厌的延迟。 AVPlayer 和 MPMoviePlayerController 都显示黑屏 2-3 秒，然后开始播放视频。好烦啊，怎么这么长的视频才开始？我该如何解决？

 //Movie Player Code
_moviePlayerVC = [[MPMoviePlayerViewController alloc] initWithContentURL:video];
    _moviePlayerVC.moviePlayer.view.userInteractionEnabled = YES;
    _moviePlayerVC.moviePlayer.view.multipleTouchEnabled = YES;
    _moviePlayerVC.moviePlayer.repeatMode = MPMovieRepeatModeOne;
    _moviePlayerVC.moviePlayer.controlStyle = MPMovieControlStyleNone;
    _moviePlayerVC.moviePlayer.scalingMode = MPMovieScalingModeFill;
    _moviePlayerVC.moviePlayer.view.frame = self.frame;
    [_moviePlayerVC.moviePlayer setShouldAutoplay:YES];
    _moviePlayerVC.view.frame = self.frame;

    [self addSubview:_moviePlayerVC.view];

//AVPlayer Code
AVAsset *asset = [AVAsset assetWithURL:video];
    AVPlayerItem *item = [[AVPlayerItem alloc] initWithAsset:asset];
    _player = [[AVPlayer alloc] initWithPlayerItem:item];
    _player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
    AVPlayerLayer *layer = [AVPlayerLayer playerLayerWithPlayer:_player];
    layer.frame = self.frame;
    layer.backgroundColor = [UIColor clearColor].CGColor;
    [layer setVideoGravity:AVLayerVideoGravityResizeAspectFill];

Answer 1

您可以预加载一个AVPlayer 并观察它的status。一旦它改变了AVPlayerStatusReadyToPlay，您应该能够毫无延迟地开始播放。