通过URL链接播放视频

Question

我正在尝试通过我的应用播放YouTube视频来测试稍后需要链接的视频（还没有视频链接）。我正在尝试使用MPMoviePlayer从UIImageView到UIWebView的所有内容。它启动播放器，然后在几秒钟后停止，日志中包含以下内容：

_itemFailedToPlayToEnd:
{
    kind = 1;
    new = 2;
    old = 0;
}

_itemFailedToPlayToEnd:(null)

我不确定会出现什么问题，因为我没有那么多将视频流式传输到我的应用中的经验。谢谢你的帮助。

-(void)playMovie:(id)sender
{
    UIWebView *video1 = [UIWebView new];
    video1.frame = CGRectMake(100, 100, 60, 60);
    NSURL *url = [NSURL URLWithString:@"https://www.youtube.com/watch?v=w9bBQRWkV8M"];
    MPMoviePlayerViewController *mp = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(movieFinished:) name:MPMoviePlayerPlaybackDidFinishNotification object:self.player];
    mp.moviePlayer.movieSourceType = MPMovieSourceTypeStreaming;
    [self presentMoviePlayerViewControllerAnimated:mp];
    [self.view addSubview:self.player.view];
    [self.player setFullscreen:YES];
    self.player.shouldAutoplay = YES;
    [self.player prepareToPlay];

}