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저는 정말로이 문제에 집착하고 있습니다. (xcode에 저장된 mp4 종류와 사용자 사진 라이브러리의 mov) 오디오 (xcode에 저장된 mp3 종류)가 병합되었습니다. 시뮬레이터에서는 잘 작동하고 비디오 및 오디오를 보여 주지만 장치에서는 비디오가 사운드 만 재생한다는 것을 보여주지 않습니다. 여기에 병합을위한 코드가 있습니다 :`AVMutableComposition * mixComposition = [AVMutableComposition composition];비디오가 기기에서 재생되지 않지만 ov 시뮬레이터를 재생합니다.
//Audio
//Now first load your audio file using AVURLAsset. Make sure you give the correct path of your videos.
NSURL *audio_url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:_video.musicFileName ofType:@"mp3"]];
AVURLAsset *audioAsset = [[AVURLAsset alloc] initWithURL:audio_url options:nil];
CMTimeRange audio_timeRange = CMTimeRangeMake(kCMTimeZero, audioAsset.duration);
//Now we are creating the first AVMutableCompositionTrack containing our audio and add it to our AVMutableComposition object.
AVMutableCompositionTrack *compositionAudioTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid];
[compositionAudioTrack insertTimeRange:audio_timeRange ofTrack:[[audioAsset tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0] atTime:kCMTimeZero error:nil];
//Video
AVMutableCompositionTrack *compositionVideoTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
NSString *fistPartMovieFilename = @"firstpart";
NSString *lastPartMovieFilename = @"lastpart";
//[_video.selectedVideosFileName insertObject:fistPartMovieFilename atIndex:0];
//[_video.selectedVideosFileName addObject:lastPartMovieFilename];
NSMutableArray *timeRanges = [NSMutableArray arrayWithCapacity:_video.selectedVideosFileName.count];
NSMutableArray *tracks = [NSMutableArray arrayWithCapacity:_video.selectedVideosFileName.count];
NSLog(@"_video.selectedVideosFileName %@",_video.selectedVideosFileName);
for (int i=0; i<[_video.selectedVideosFileName count]; i++)
{
AVURLAsset *assetClip;
NSString *fileName = [_video.selectedVideosFileName objectAtIndex:i];
if ([[_video.selectedVideosFileName objectAtIndex:i] isKindOfClass:[NSURL class]])
{
assetClip = [AVAsset assetWithURL:[_video.selectedVideosFileName objectAtIndex:i]];
}
else
{
assetClip = [AVURLAsset URLAssetWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:[NSString stringWithString:fileName] ofType:@"mp4"]] options:nil];
}
AVAssetTrack *clipVideoTrack = [[assetClip tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
[timeRanges addObject:[NSValue valueWithCMTimeRange:CMTimeRangeMake(kCMTimeZero, assetClip.duration)]];
[tracks addObject:clipVideoTrack];
NSLog(@"timeRanges %@",timeRanges);
NSLog(@"tracks %@",tracks);
NSLog(@"assetClip %@",assetClip);
NSLog(@"clipVideoTrack %@",clipVideoTrack);
}
NSError *error = nil;
BOOL sucsess = [compositionVideoTrack insertTimeRanges:timeRanges
ofTracks:tracks
atTime:kCMTimeZero
error:&error];
if (!sucsess || error) {
NSLog(@"video error %@", error);
}
장치를하려고 할 때 내가 오류는 다음과 같습니다 오류 도메인 = AVFoundationErrorDomain 코드 = -11800는 사용자 정보 = 0x1704707c0이 {NSUnderlyingError = 0x174247050 "작업이 없습니다"작업을 완료 할 수 없습니다 "비디오 오류 완료. (OSStatus 오류 -12780.)는 "NSLocalizedFailureReason는 NSLocalizedDescription이 작업은 내가 문제가, 도움이 될 수 있는지 정말 우둔입니다
NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsDir = [dirPaths objectAtIndex:0];
NSString *outputFilePath = [docsDir stringByAppendingPathComponent:[NSString stringWithFormat:@"Zagoori-%d.mov",arc4random() % 1000]];
NSURL *outputFileUrl = [NSURL fileURLWithPath:outputFilePath];
if ([[NSFileManager defaultManager] fileExistsAtPath:outputFilePath])
[[NSFileManager defaultManager] removeItemAtPath:outputFilePath error:nil];
//Now create an AVAssetExportSession object that will save your final video at specified path.
AVAssetExportSession *_assetExport = [[AVAssetExportSession alloc] initWithAsset:mixComposition
presetName:AVAssetExportPresetLowQuality];
NSLog(@"supportedFileTypes %@", [_assetExport supportedFileTypes]);
_assetExport.outputFileType = @"com.apple.quicktime-movie";
_assetExport.outputURL = outputFileUrl;
[_assetExport exportAsynchronouslyWithCompletionHandler:^
{
dispatch_async(dispatch_get_main_queue(), ^{
switch ([_assetExport status]) {
case AVAssetExportSessionStatusExporting:
NSLog(@"Export in progress ");
case AVAssetExportSessionStatusFailed:
NSLog(@"Export failed (%ld): %@", (long)[[_assetExport error] code], [[_assetExport error] localizedFailureReason]);
[_assetExport cancelExport];
break;
case AVAssetExportSessionStatusCancelled:
NSLog(@"Export canceled");
break;
case AVAssetExportSessionStatusCompleted:
NSLog(@"Export done");
[self exportDidFinish:_assetExport];
// NSLog (@"finished writing %f", [dtStartDate timeIntervalSinceNow]);
break;
case AVAssetExportSessionStatusWaiting:
NSLog (@"AVAssetExportSessionStatusWaiting");
break;
case AVAssetExportSessionStatusUnknown:
NSLog (@"AVAssetExportSessionStatusUnknown");
break;
}
});
}];
-(void)loadMoviePlayer:(NSURL*)moviePath {
_moviePlayerController = [[MPMoviePlayerController alloc]
initWithContentURL:moviePath];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(introMovieFinished:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:_moviePlayerController];
_moviePlayerController.view.hidden = NO;
_moviePlayerController.view.frame = CGRectMake(0, 0, _videoView.frame.size.width,
_videoView.frame.size.height);
_moviePlayerController.view.backgroundColor = [UIColor clearColor];
_moviePlayerController.scalingMode = MPMovieScalingModeAspectFit;
_moviePlayerController.fullscreen = NO;
[_moviePlayerController prepareToPlay];
[_moviePlayerController readyForDisplay];
[_moviePlayerController setControlStyle:MPMovieControlStyleDefault];
_moviePlayerController.shouldAutoplay = YES;
[_videoView addSubview:_moviePlayerController.view];
[_videoView setHidden:NO];
}
을 완료 할 수 없습니다 = 알 수없는 오류가 발생 (-12780)를 = 부디! :)