iphone - MPMoviePlayerController不播放从UIImagePickerController拾取的电影

我有奇怪的MPMoviePlayerController行为。它不想播放仅从UIImagePickerController的“相机胶卷”中选择的电影。但是，当我使用UIImagePickerController捕获电影时，有时可以在MPMoviePlayerController中正常播放。

这是UIImagePickerController的初始化:

mediaPickerController = [[[UIImagePickerController alloc] init] autorelease];
NSArray *types = [UIImagePickerController availableMediaTypesForSourceType:sourceType];
mediaPickerController.sourceType = sourceType;
mediaPickerController.mediaTypes = types;
mediaPickerController.videoQuality = qualityType;
mediaPickerController.delegate = self;
[self presentModalViewController:mediaPickerController animated:YES];

这是-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 委托方法:

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    NSURL *fileURL = [info objectForKey:UIImagePickerControllerMediaURL];
    playerView = [[MPMoviePlayerController alloc] initWithContentURL:fileURL];
    [playerView.view setFrame:mediaPreview.bounds];
    [playerView setScalingMode:MPMovieScalingModeAspectFit];
    [playerView setControlStyle:MPMovieControlStyleEmbedded];
    [playerView setShouldAutoplay:NO];
    [playerView prepareToPlay];
    [mediaPreview addSubview:playerView.view];
}

另一个奇怪的问题-当我使用UIImagePickerController的sourceType = Camera时，委托返回下一个路径并正常播放:

UIImagePickerControllerMediaURL = "file://localhost/private/var/mobile/Applications/XXXXX-XXXXX/tmp/capture-T0x127bb0.tmp.5gFkOo/capturedvideo.MOV"

但是，当sourceType = Library时，路径看起来不正确，电影会在半秒钟后出现并消失:

UIImagePickerControllerMediaURL = "file://localhost/private/var/mobile/Applications/XXXXX-XXXXX/tmp//trim.ZPeyTU.MOV"

有什么想法吗？

最佳答案

我有同样的事情，只发生在iPad 2上，而相同的确切代码在iPhone 4上却可以正常工作。

原来，返回视频后，图像选择器没有被正确释放。

尝试在didFinishPickingMediaWithInfo回调中添加[picker版本]。

关于iphone - MPMoviePlayerController不播放从UIImagePickerController拾取的电影，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/6455299/