iphone - 使用 MPMoviePlayerController 播放 iTunes 预览视频

Question

我正在尝试从 URL 播放视频，我要播放的视频是 iTunes 预览视频，如下所示: http://a236.v.phobos.apple.com/us/r1000/051/Video/ec/1d/7f/mzm.hwbfvfdq..640x480.h264lc.d2.p.m4v我在 iPhone 上尝试过，打开播放器，我看到缓冲区已加载，但如果我播放它，我看不到任何内容，我该怎么办？...这是代码:

- (void) moviePlayBackDidFinish:(NSNotification*)notification {

MPMoviePlayerController *moviePlayer = [notification object];

[[NSNotificationCenter defaultCenter] removeObserver:self      
                                                name:MPMoviePlayerPlaybackDidFinishNotification
                                              object:moviePlayer];

if ([moviePlayer 
     respondsToSelector:@selector(setFullscreen:animated:)])
{
    [moviePlayer.view removeFromSuperview];
}
[moviePlayer release];
}

- (IBAction)playVideo:(id)sender {

NSURL *url = [NSURL URLWithString:@"http://a236.v.phobos.apple.com/us/r1000/051/Video/ec/1d/7f/mzm.hwbfvfdq..640x480.h264lc.d2.p.m4v"];

MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:url];

[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(moviePlayBackDidFinish:)
                                             name:MPMoviePlayerPlaybackDidFinishNotification
                                           object:moviePlayer];

moviePlayer.controlStyle = MPMovieControlStyleDefault;
moviePlayer.shouldAutoplay = YES;

[self.view addSubview:moviePlayer.view];
[moviePlayer setFullscreen:YES animated:YES];


}

Answer 1

因为您正在尝试从 iTunes 访问 .m4v 文件。 DRM 保护是问题所在。

编辑:您的链接在 Quicktime 中有效，但在浏览器中无效。

Apple 不允许在 MPMoviePlayerConroller 中播放 iTunes 中受 DRM 保护的音乐或视频(包括预览)。

另请参阅 Stackoverflow 上的以下链接