я использую этот код, который отлично работает в предыдущей версии IOS 9. но в версии IOS 9 он всегда происходит AVAssetExportSessionStatusFailed
AVAsset *avAsset1 = [AVURLAsset URLAssetWithURL:[NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/firstPart.caf",docsDir]] options:nil];
AVAsset *avAsset2 = [AVURLAsset URLAssetWithURL:[NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/New-Recording.caf",docsDir]] options:nil];
AVMutableComposition *composition = [[AVMutableComposition alloc] init];
[composition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid];
AVMutableCompositionTrack *track = [composition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid];
AVAssetTrack *assetTrack1;
AVAssetTrack *assetTrack2;
if ([avAsset1 tracksWithMediaType:AVMediaTypeAudio].count > 0) {
assetTrack1 = [[avAsset1 tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0];
assetTrack2 = [[avAsset2 tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0];
}
CMTime insertionPoint = kCMTimeZero;
[track insertTimeRange:CMTimeRangeMake(kCMTimeZero, avAsset1.duration) ofTrack:assetTrack1 atTime:insertionPoint error:nil];
insertionPoint = CMTimeAdd(insertionPoint, avAsset1.duration);
[track insertTimeRange:CMTimeRangeMake(kCMTimeZero, avAsset2.duration) ofTrack:assetTrack2 atTime:insertionPoint error:nil];
AVAssetExportSession *exportSession = [AVAssetExportSession exportSessionWithAsset:composition presetName:AVAssetExportPresetAppleM4A];
exportSession.outputURL = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/mergedFilePart1.caf",documentsDirectory]];
exportSession.outputFileType = AVFileTypeAppleM4A;
[exportSession exportAsynchronouslyWithCompletionHandler:^{
if (AVAssetExportSessionStatusCompleted == exportSession.status) {
NSLog(@"AVAssetExportSessionStatusCompleted");
[self mergeAudioPart2];
} else if (AVAssetExportSessionStatusFailed == exportSession.status) {
NSLog(@"AVAssetExportSessionStatusFailed");
} else {
NSLog(@"Export Session Status: %ld", (long)exportSession.status);
}
}];
Я искал по всему Интернету, но не нашел решения, любая помощь будет оценена.