AVPlayer volume control while playing Video

Question

I am working on custom video Player using AVPlayer class now in that i want to implement volume control using with UISlidercontrol.

I have done this:

NSMutableArray *allAudioParams = [NSMutableArray array];
AVMutableAudioMixInputParameters *audioInputParams =[AVMutableAudioMixInputParameters audioMixInputParameters];
[audioInputParams setVolume:volumeSlider.value atTime:kCMTimeZero];
[allAudioParams addObject:audioInputParams];
AVMutableAudioMix *audioZeroMix = [AVMutableAudioMix audioMix];
[audioZeroMix setInputParameters:allAudioParams];
[self.playerItem setAudioMix:audioZeroMix];

But its not working for me so can anyone please suggest me any other solution for this i have done so much r&d but not able to find proper solution.

Thanks.

Answer 1

You can use below code to change volume :

NSArray *audioTracks = [asset tracksWithMediaType:AVMediaTypeAudio];

NSMutableArray *allAudioParams = [NSMutableArray array];
for (AVAssetTrack *track in audioTracks) {
  AVMutableAudioMixInputParameters *audioInputParams = 
    [AVMutableAudioMixInputParameters audioMixInputParameters];
  [audioInputParams setVolume:volume atTime:kCMTimeZero];
  [audioInputParams setTrackID:[track trackID]];
  [allAudioParams addObject:audioInputParams];
}

AVMutableAudioMix *audioMix = [AVMutableAudioMix audioMix];
[audioMix setInputParameters:allAudioParams];

[playerItem setAudioMix:audioMix];