Question

我遇到了让MPMoviePlayerViewController工作的问题。我有一个新项目，在viewDidLoad之后我尝试在moviePlayerViewController中播放电影，如下所示。我得到了电影，我得到了很多很多错误信息，如下所示。有人可以解释我做错了什么来获得这些错误

- (void)viewDidLoad
{
    [super viewDidLoad];
    [ self play ];
}

- (void) play {
    NSURL *filmURL = [ NSURL URLWithString:@"http://www.ud-ltd.com/ipmt/Film16.mp4" ];
    self.mvc = [[MPMoviePlayerViewController alloc] initWithContentURL:filmURL ];
    [ self presentMoviePlayerViewControllerAnimated:self.mvc ];
    [ self.view addSubview:self.mvc.view ];
    [ self.mvc.moviePlayer play];
}

错误消息

Jan  8 21:19:28 rezas-macbook.home MoviePlayer[30320] <Error>: CGContextSaveGState: invalid context 0x0
Jan  8 21:19:28 rezas-macbook.home MoviePlayer[30320] <Error>: CGContextClipToRect: invalid context 0x0
Jan  8 21:19:28 rezas-macbook.home MoviePlayer[30320] <Error>: CGContextTranslateCTM: invalid context 0x0
Jan  8 21:19:28 rezas-macbook.home MoviePlayer[30320] <Error>: CGContextDrawShading: invalid context 0x0
Jan  8 21:19:28 rezas-macbook.home MoviePlayer[30320] <Error>: CGContextRestoreGState: invalid context 0x0
2013-01-08 21:19:28.526 MoviePlayer[30320:c07] [MPAVController] Autoplay: Disabling autoplay for pause
2013-01-08 21:19:28.527 MoviePlayer[30320:c07] [MPAVController] Autoplay: Disabling autoplay
2013-01-08 21:19:28.528 MoviePlayer[30320:c07] Warning: Attempt to present <MPMoviePlayerViewController: 0x916ec10> on <ViewController: 0x916c9c0> whose view is not in the window hierarchy!
2013-01-08 21:19:28.536 MoviePlayer[30320:c07] [MPAVController] Autoplay: Skipping autoplay, disabled (for current item: 1, on player: 0)
2013-01-08 21:19:29.864 MoviePlayer[30320:c07] [MPAVController] Autoplay: Enabling autoplay
2013-01-08 21:19:29.868 MoviePlayer[30320:c07] [MPAVController] Autoplay: Likely to keep up or full buffer: 0
2013-01-08 21:19:29.868 MoviePlayer[30320:c07] [MPAVController] Autoplay: Skipping autoplay, not enough buffered to keep up.
2013-01-08 21:19:29.870 MoviePlayer[30320:c07] [MPAVController] Autoplay: Enabling autoplay
2013-01-08 21:19:29.871 MoviePlayer[30320:c07] [MPCloudAssetDownloadController] Prioritization requested for media item ID: 0
2013-01-08 21:19:30.964 MoviePlayer[30320:c07] [MPAVController] Autoplay: Likely to keep up or full buffer: 0
2013-01-08 21:19:30.964 MoviePlayer[30320:c07] [MPAVController] Autoplay: Skipping autoplay, not enough buffered to keep up.
2013-01-08 21:19:31.494 MoviePlayer[30320:c07] [MPAVController] Autoplay: _streamLikelyToKeepUp: 0 -> 1
2013-01-08 21:19:31.495 MoviePlayer[30320:c07] [MPAVController] Autoplay: Likely to keep up or full buffer: 1
2013-01-08 21:19:31.495 MoviePlayer[30320:c07] [MPAVController] Autoplay: Enabling autoplay

Answer 1

我也在使用MPMoviePlayerViewController在我的App＆amp; amp;我也

得到这些错误但除了这些错误之外，我的视频在这个播放器上播放得很好。

我认为没有解决方案。如果您的视频工作正常，请忽略这些警告

或错误。

Answer 2

（1）要解决CGContextSaveGState，请在假图形上下文中包装你的alloc-init，我在这里解释一下：

iphone MPMoviePlayerViewController CGContext Errors

（2）其他消息无害，现在已在iOS 6.1上解决。它们不再出现了。

Answer 3

我还使用MPMoviePlayerViewController在我的应用程序上生活视频并获得相同的上面列表错误。我发现MPMoviePlayer不支持更大的数据来显示视频但是如果你使用较小的视频数据工作正常它不会给出任何错误。实际上不是准备播放和播放电影播放器的属性的问题。

如果您需要显示更大的数据，请在您的应用上使用webview。

MPMoviePlayerViewController生成大量错误

3 个答案: