GPUImageMovieWriter不记录音频

我看到上一个线程有同样的问题，但我想看看是否有任何想法。我有一个应用程序，在这里我会拍摄一系列照片，然后弹出一个记录消息的选项。我已将自己的曝光锁定，但是当我录制视频时，它会解锁并在完成录制后不会恢复到原始状态。我搬到GPUImageMovieWriter不记录音频

self.stillCamera.audioEncodingTarget = self.movieWriter;

到

viewDidLoad

像以前线程说到做到。这固定了曝光问题，但现在没有音频。我很难过。

下面是一些代码。

(void)viewDidLoad { 
[super viewDidLoad]; 
self.library = [[ALAssetsLibrary alloc] init]; 
takephotocolor.hidden = YES; 
takephotobw.hidden = YES; 
self.stillCamera.audioEncodingTarget = self.movieWriter; 

} 

(IBAction)StartButtonPressed:(id)sender { 
if(!self.transform){ 

self.transform = [[GPUImageTransformFilter alloc] init]; 
CATransform3D perspectiveTransform = CATransform3DScale(CATransform3DMakeRotation(0, 0, 0, 1), 
                 -1, 1, 1); 
[self.transform setTransform3D:perspectiveTransform]; 
} 

[self.filter addTarget:self.transform]; 

self.pathToMovie = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/movie.mov"]; 
unlink([self.pathToMovie UTF8String]); 
NSURL *movieURL = [NSURL fileURLWithPath:self.pathToMovie]; 
self.movieWriter = [[GPUImageMovieWriter alloc] initWithMovieURL:movieURL  size:CGSizeMake(1024.0, 768.0)]; 


[self.transform addTarget:self.movieWriter]; 
[self.movieWriter startRecording]; 

btnStart.hidden = YES; 
btnStop.hidden = NO; 
NSLog(@"START RECORDING"); 
} 

(IBAction)StopButtonPressed:(id)sender { 
self.stillCamera.audioEncodingTarget = nil; 
[self.movieWriter finishRecording]; 

[self.filter removeTarget:self.transform]; 
[self.transform removeAllTargets]; 
UISaveVideoAtPathToSavedPhotosAlbum(self.pathToMovie, self, nil, nil); 

[NSTimer scheduledTimerWithTimeInterval:3.0 target:self selector:@selector(goVideo) userInfo:nil repeats:NO]; 
}

来源

2013-11-23 user2442173

尝试把self.stillCamera.audioEncodingTarget = nil;，来电后[self.movieWriter finishRecording];这就是我有它至少设置。

来源

2013-11-23 05:43:18

GPUImageMovieWriter不记录音频

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