Ios: Remove audio from video - ios

Question

I have requirement some times mute video send enduser so I required remove audio file form the video.
Passing video for single process for mute.

Answer 1

// Remove audio from video
- (void) RemoveAudioFromVideo:(NSString *)VideoLocalPath {
NSString * initPath1 = VideoLocalPath;
AVMutableComposition *composition = [AVMutableComposition composition];
NSString *inputVideoPath = initPath1;
AVURLAsset * sourceAsset = [[AVURLAsset alloc] initWithURL:[NSURL fileURLWithPath:inputVideoPath] options:nil];
AVMutableCompositionTrack *compositionVideoTrack = [composition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
BOOL ok = NO;
AVAssetTrack * sourceVideoTrack = [[sourceAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
CMTimeRange x = CMTimeRangeMake(kCMTimeZero, [sourceAsset duration]);
ok = [compositionVideoTrack insertTimeRange:x ofTrack:sourceVideoTrack atTime:kCMTimeZero error:nil];
if([[NSFileManager defaultManager] fileExistsAtPath:initPath1]) {
[[NSFileManager defaultManager] removeItemAtPath:initPath1 error:nil];
}
NSURL *url = [[NSURL alloc] initFileURLWithPath: initPath1];
AVAssetExportSession *exporter = [[AVAssetExportSession alloc] initWithAsset:composition presetName:AVAssetExportPresetHighestQuality];
exporter.outputURL=url;
NSLog(#";%#", [exporter supportedFileTypes]);
exporter.outputFileType = #"com.apple.quicktime-movie";
[exporter exportAsynchronouslyWithCompletionHandler:^{
[self savefinalVideoFileToDocuments:exporter.outputURL];
}];
}
// Write final Video
-(void)savefinalVideoFileToDocuments:(NSURL *)url {
NSString *storePath = [[self applicationCacheDirectory] stringByAppendingPathComponent:#"Videos"];
NSData * movieData = [NSData dataWithContentsOfURL:url];
[movieData writeToFile:storePath atomically:YES];
}
// Directory Path
- (NSString *)applicationCacheDirectory {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;
return documentsDirectory;
}

Answer 2

In Swift 3,
func removeAudioFromVideo(_ videoPath: String) {
let initPath1: String = videoPath
let composition = AVMutableComposition()
let inputVideoPath: String = initPath1
let sourceAsset = AVURLAsset(url: URL(fileURLWithPath: inputVideoPath), options: nil)
let compositionVideoTrack: AVMutableCompositionTrack? = composition.addMutableTrack(withMediaType: AVMediaTypeVideo, preferredTrackID: kCMPersistentTrackID_Invalid)
let sourceVideoTrack: AVAssetTrack? = sourceAsset.tracks(withMediaType: AVMediaTypeVideo)[0]
let x: CMTimeRange = CMTimeRangeMake(kCMTimeZero, sourceAsset.duration)
_ = try? compositionVideoTrack!.insertTimeRange(x, of: sourceVideoTrack!, at: kCMTimeZero)
if FileManager.default.fileExists(atPath: initPath1) {
try? FileManager.default.removeItem(atPath: initPath1)
}
let url = URL(fileURLWithPath: initPath1)
let exporter = AVAssetExportSession(asset: composition, presetName: AVAssetExportPresetHighestQuality)
exporter?.outputURL = url
exporter?.outputFileType = "com.apple.quicktime-movie"
exporter?.exportAsynchronously(completionHandler: {() -> Void in
self.saveFinalVideoFile(toDocuments: exporter!.outputURL!)
})
}
func saveFinalVideoFile(toDocuments url: URL) {
let fileURL = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false).appendingPathComponent("Videos")
let movieData = try? Data(contentsOf: url)
try? movieData?.write(to: fileURL, options: .atomic)
}