4

绝望了。大家好！我遇到了 MPMoviePlayerController 的一些问题。我已经使它与来自 NSBundle 的视频一起工作。但这不是我需要的。我需要从 Documents 目录播放它，因为那是我存储录制视频的地方，而 URL 存储在 CoreData 中。但是让我们把它放在一边，并将代码简化到所需的最低限度。如果使用 contentURL，此代码实际上可以工作，这会导致 NSBundle。之后，我要做什么才能到达文档位置。我所做的：

    NSURL *contentURL = [[NSBundle mainBundle] URLForResource:@"Oct_08_2012_10_00_51" withExtension:@"mp4"]; // this works
NSString* docPath = [NSSearchPathForDirectoriesInDomains
                     (NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString * docaPathFull = [NSString stringWithFormat:@"%@%@", docPath, @"/Oct_08_2012_10_00_51.mp4"];
NSURL * docUrl= [NSURL URLWithString: docaPathFull];
BOOL ex = [[NSFileManager defaultManager] fileExistsAtPath:docaPathFull];
NSLog(@"file exists: %d, path using docPath: %@",ex, docaPathFull);
MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL:docUrl];
player.shouldAutoplay = YES;
player.controlStyle = MPMovieControlStyleEmbedded;
[player.view setFrame: self.thumbButton.bounds];
[player prepareToPlay];
[self.view addSubview: player.view];
[player play];

我们有什么：

2012-10-08 13:14:43.532 Voto[11968:907] file exists: 1, path using docPath: /var/mobile/Applications/07B8574A-A3BA-4B23-BB3F-995B33A01B95/Documents/Oct_08_2012_10_00_51.mp4
2012-10-08 13:14:43.907 Voto[11968:907] content URL: file://localhost/var/mobile/Applications/07B8574A-A3BA-4B23-BB3F-995B33A01B95/Voto.app/Oct_08_2012_10_00_51.mp4
2012-10-08 13:14:44.265 Voto[11968:907] doc URL: /var/mobile/Applications/07B8574A-A3BA-4B23-BB3F-995B33A01B95/Documents/Oct_08_2012_10_00_51.mp4
2012-10-08 13:14:45.343 Voto[11968:907] [MPAVController] Autoplay: Disabling autoplay for pause
2012-10-08 13:14:45.344 Voto[11968:907] [MPAVController] Autoplay: Disabling autoplay
2012-10-08 13:14:46.518 Voto[11968:907] [MPAVController] Autoplay: Skipping autoplay, disabled (for current item: 1, on player: 0)
2012-10-08 13:14:46.540 Voto[11968:907] [MPAVController] Autoplay: Enabling autoplay
2012-10-08 13:14:46.554 Voto[11968:907] [MPAVController] Autoplay: Likely to keep up or full buffer: 0
2012-10-08 13:14:46.555 Voto[11968:907] [MPAVController] Autoplay: Skipping autoplay, not enough buffered to keep up.
2012-10-08 13:14:46.557 Voto[11968:907] [MPAVController] Autoplay: Enabling autoplay
2012-10-08 13:14:46.567 Voto[11968:907] [MPCloudAssetDownloadController] Prioritization requested for media item ID: 0
2012-10-08 13:14:46.871 Voto[11968:907] [MPAVController] Autoplay: Enabling autoplay

所以，该文件存在......我看过的问题：

MPMoviePlayer 加载和播放保存在应用文档中的电影

MPMoviePlayerController 不适用于文档文件夹中的电影

MPMoviePlayerViewController 从 Documents 目录播放电影-objective-c

我还检查了类参考，没有关于从 Documents 播放的具体内容。我的项目设置：使用最新的 iOS 6，部署目标 5.0 在 iOS6 iPhone 模拟器和带有 iOS 6 的 iPad 上测试。如果我忘记添加一些东西，请提醒我，我会立即做。

请帮忙！:)

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3 回答 3

20

好吧，您没有以正确的方式构建文件 URL，您应该这样做：

NSString *docPath = [NSSearchPathForDirectoriesInDomains
                     (NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *docaPathFull = [docPath stringByAppendingPathComponent:@"/Oct_08_2012_10_00_51.mp4"];
NSURL *docUrl= [NSURL fileURLWithPath:docaPathFull];

stringByAppendingPathComponent您应该使用以下方法将目录和文件添加到路径NSString；同样在创建文件 URL 时使用fileURLWithPath:on NSURL，这将为给定路径创建一个正确的 NSURL。

于 2012-10-08T10:28:03.717 回答
10

每个人最常犯的错误就是都使用

NSURL *fileURL = [NSURL URLWithString:mVidPath];
                        ^^^^^^^^^^^^^

代替

NSURL *fileURL = [NSURL fileURLWithPath:mVidPath];
                        ^^^^^^^^^^^^^^^
于 2014-03-26T12:52:26.710 回答
0 
-(IBAction)playVideo
{
NSURL *vedioURL;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSArray *filePathsArray = [[NSFileManager defaultManager] subpathsOfDirectoryAtPath:documentsDirectory  error:nil];
NSLog(@"files array %@", filePathsArray);        
NSString *fullpath;
for ( NSString *apath in filePathsArray )
{
    fullpath = [documentsDirectory stringByAppendingPathComponent:apath];       
    vedioURL =[NSURL fileURLWithPath:fullpath];
}
NSLog(@"vurl %@",vedioURL);
MPMoviePlayerViewController *player = [[MPMoviePlayerViewController alloc] initWithContentURL:vedioURL];
[player.view setFrame: self.view.bounds];
[player.moviePlayer prepareToPlay];
[self.view addSubview:player.view];
player.moviePlayer.controlStyle = MPMovieControlStyleDefault;
player.moviePlayer.shouldAutoplay = YES;
[player.moviePlayer setFullscreen:YES animated:YES];
[player.moviePlayer play];
[self presentMoviePlayerViewControllerAnimated: player];
}

不要忘记在各自的代码中添加 MediaPlayer.framework 和 #import < MediaPlayer/MediaPlayer.h>。祝你好运！！！

于 2013-10-29T11:11:46.700 回答