保存視頻在IOS 5

Question

我使用到現在這段代碼保存視頻，我從UIImagePickerController得到：

 NSURL *url = [info objectForKey:UIImagePickerControllerMediaURL]; 

     NSData *videoData = [NSData dataWithContentsOfURL:url]; 
     path = [kFilesSaveDirectory stringByAppendingFormat:@"%@/Vid%d.mov",album.albumName,album.lastfile]; 
     path2 = [kFilesSaveDirectory stringByAppendingFormat:@"%@/VidImg%d.png",album.albumName,album.lastfile]; 

     [videoData writeToFile:path atomically:NO]; 

     [[videoPlayer moviePlayer] setContentURL:[NSURL URLWithString:path]]; 
     UIImage *image = [[videoPlayer moviePlayer] thumbnailImageAtTime:1.0 timeOption: MPMovieTimeOptionNearestKeyFrame]; 
     [[videoPlayer moviePlayer] setContentURL:nil]; 
     [UIImagePNGRepresentation(image) writeToFile:path2 atomically:YES]; 

到現在爲止在iOS 4的它的工作沒有任何問題，但是當我嘗試使用它現在在iOS 5中，它有兩個問題：

1. 它給我零爲img。

2.it不告訴我視頻的時候，我想使用此代碼來顯示它：

[[videoPlayer moviePlayer] setContentURL:[NSURL URLWithString:choosen.bigpath]]; 

[self presentModalViewController:videoPlayer animated:YES]; 

[[videoPlayer moviePlayer] play]; 

Answer 1

這是爲我工作 -

NSURL *mediaUrl = [info objectForKey:UIImagePickerControllerMediaURL]; 

     MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:mediaUrl]; 
     moviePlayer.shouldAutoplay = NO; 
     thumbnail = [[moviePlayer thumbnailImageAtTime:0.0 timeOption:MPMovieTimeOptionNearestKeyFrame] retain]; 
     [moviePlayer release]; 
     [layer release]; 

我加入這個代碼，這個代表

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 

希望它也適用於你:)