Ios 如何将GPUImage过滤视频与音频一起保存?
我已经在视频上应用了过滤器。但问题在于将其保存在带有音频输出的摄像机滚动中。但不幸的是,我没能挽救它 请参阅下面的代码Ios 如何将GPUImage过滤视频与音频一起保存?,ios,objective-c,iphone,ios9,gpuimage,Ios,Objective C,Iphone,Ios9,Gpuimage,我已经在视频上应用了过滤器。但问题在于将其保存在带有音频输出的摄像机滚动中。但不幸的是,我没能挽救它 请参阅下面的代码 -(IBAction)saveVideo:(id)sender{ NSString *pathToMovie = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/Movie.mov"]; unlink([pathToMovie UTF8String]); // If a file al
-(IBAction)saveVideo:(id)sender{
NSString *pathToMovie = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/Movie.mov"];
unlink([pathToMovie UTF8String]); // If a file already exists, AVAssetWriter won't let you record new frames, so delete the old movie
NSURL *movieURL = [NSURL fileURLWithPath:pathToMovie];
_movieWriter = [[GPUImageMovieWriter alloc] initWithMovieURL:movieURL size:CGSizeMake(720.0, 1280.0)];
_movieWriter.shouldPassthroughAudio = YES;
//_movieWriter.assetWriter.movieFragmentInterval = kCMTimeInvalid;
_movieWriter.hasAudioTrack = YES;
_movieFile.audioEncodingTarget = self.movieWriter;
[_filter addTarget:_movieWriter];
[_movieFile enableSynchronizedEncodingUsingMovieWriter:_movieWriter];
[_movieWriter startRecording];
__block GPUImageOutput<GPUImageInput> *weekfilter = _filter;
__block GPUImageMovieWriter *weekMovieWriter = _movieWriter;
ViewControllerFilters* __weak weakSelf = self;
[_movieWriter setCompletionBlock:^{
[weekfilter removeTarget:weekMovieWriter];
[weekMovieWriter finishRecording];
dispatch_async(dispatch_get_main_queue(), ^{
// [timer invalidate];
//self.progressLabel.text = @"100%";
// [[SoundManager sharedManager] stopAnimating];
// [weakSelf performSegueWithIdentifier:export sender:movieURL];
[weakSelf saveToCameraRoll:movieURL];
});
}];
}
-(iAction)保存视频:(id)发件人{
NSString*pathToMovie=[NSHomeDirectory()stringByAppendingPathComponent:@“Documents/Movie.mov”];
取消链接([pathToMovie UTF8String]);//如果文件已经存在,AVAssetWriter将不允许您录制新帧,因此请删除旧电影
NSURL*movieURL=[NSURL fileURLWithPath:pathToMovie];
_movieWriter=[[GPUImageMovieWriter alloc]initWithMovieURL:movieURL大小:CGSizeMake(720.01280.0)];
_movieWriter.shouldPassthroughAudio=是;
//_movieWriter.assetWriter.movieFragmentInterval=KCMTIMEIVALID;
_movieWriter.hasaAudioTrack=是;
_movieFile.audioEncodingTarget=self.movieWriter;
[_filteraddtarget:_movieWriter];
[_MovieFileEnableSynchronizedEncodingingingMovieWriter:_movieWriter];
[电影编剧startRecording];
__块GPUImageOutput*weekfilter=\u filter;
__块GPUImageMovieWriter*周movieWriter=\u movieWriter;
ViewControllerFilters*\uuu弱弱弱自我=自我;
[\u movieWriter setCompletionBlock:^{
[weekfilter removeTarget:weekMovieWriter];
[weekMovieWriter finishRecording];
dispatch\u async(dispatch\u get\u main\u queue()^{
//[计时器失效];
//self.progressLabel.text=@“100%”;
//[[SoundManager sharedManager]停止设置动画];
//[weakSelf performsguewithidentifier:export sender:movieURL];
[weakSelf saveToCameraRoll:movieURL];
});
}];
}
我得到的日志无法写入帧。并接收内存警告和应用程序崩溃。确保
电影文件
声明为strong
-(void)saveVideo{
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
AVURLAsset *asset = [AVURLAsset URLAssetWithURL:self.url options:nil];
AVAssetTrack *videoAssetTrack = [[asset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
//CGAffineTransform videoTransform = CGAffineTransformMakeRotation(self.ValueOrientation);
self.movieFile1 = [[GPUImageMovie alloc] initWithURL:self.url];
self.movieFile1.runBenchmark = YES;
self.filterExport = self.filterobject;
[self.movieFile1 addTarget:self.filterExport];
[self.filterExport removeAllTargets];
NSString* filteredFile= [documentsDirectory stringByAppendingPathComponent:@"MovieFiltered.m4v"];
unlink([filteredFile UTF8String]);
NSURL *movieURL = [NSURL fileURLWithPath:filteredFile];
self.movieWriter = [[GPUImageMovieWriter alloc] initWithMovieURL:movieURL size:CGSizeMake(videoAssetTrack.naturalSize.width, videoAssetTrack.naturalSize.height)];
[self.filterExport addTarget:self.movieWriter];
self.movieWriter.shouldPassthroughAudio = YES;
self.movieFile1.audioEncodingTarget = self.movieWriter;
[self.movieFile1 enableSynchronizedEncodingUsingMovieWriter:self.movieWriter];
[self.movieWriter startRecording];
[self.movieFile1 startProcessing];
__weak typeof(self) weakSelf = self;
[self.movieWriter setCompletionBlock:^{
NSLog(@"Recording done");
[weakSelf.movieWriter finishRecording];
// [weakSelf writeToAlbum:movieURL];
}];
}