How to disable audio in webrtc mobile app(ios) without changing in framework - ios

Question

I am working with webrtc mobile(ios). I can't disable audio in webrtc(ios). I have got no flag to disable audio.By changing in framwork/library it can done easily. My purpose is that I have to disable audio without changing in framework/library. Can anyone help me?.

Answer 1

Update your question with code snippet, how you are creating mediaStrem or tracks(audio/video).
Generally with default Native WebRTC Framework,
RTCMediaStream localStream = [_factory mediaStreamWithStreamId:kARDMediaStreamId];
if(audioRequired) {
RTCAudioTrack *aTrack = [_lmStream createLocalAudioTrack];
[localStream addAudioTrack:aTrack];
}
RTCVideoTrack *vTrack = [_lmStream createLocalVideoTrack];
[localStream addVideoTrack:vTrack];
[_peerConnection addStream:localStream];
If you want to mute the Audio during the call, use below function.
- (void)enableAudio:(NSString *)id isAudioEnabled:(BOOL) isAudioEnabled {
NSLog(#"Auido enabled: %d streams count:%d ", id, isAudioEnabled, _peerConnection.localStreams.count);
if(_peerConnection.localStreams.count > 0) {
RTCMediaStream *lStream = _peerConnection.localStreams[0];
if(lStream.audioTracks.count > 0) { // Usually we will have only one track. If you have more than one, need to traverse all.
// isAudioEnabled == 1 -> Unmute
// isAudioEnabled == 0 -> Mute
[lStream.audioTracks[0] setIsEnabled:isAudioEnabled];
}
}
}

Answer 2

in my case I didnt use streams and directly add audio track to peerconnection.
private func createMediaSenders() {
let streamId = "stream"
// Audio
let audioTrack = self.createAudioTrack()
self.pc.add(audioTrack, streamIds: [streamId])
// Video
/* let videoTrack = self.createVideoTrack()
self.localVideoTrack = videoTrack
self.peerConnection.add(videoTrack, streamIds: [streamId])
self.remoteVideoTrack = self.peerConnection.transceivers.first { $0.mediaType == .video }?.receiver.track as? RTCVideoTrack
// Data
if let dataChannel = createDataChannel() {
dataChannel.delegate = self
self.localDataChannel = dataChannel
}*/
}
private func createAudioTrack() -> RTCAudioTrack {
let audioConstrains = RTCMediaConstraints(mandatoryConstraints: nil, optionalConstraints: nil)
let audioSource = sessionFactory.audioSource(with: audioConstrains)
let audioTrack = sessionFactory.audioTrack(with: audioSource, trackId: "audio0")
return audioTrack
}
to mute and unmute microphone I use this function
public func muteMicrophone(_ mute:Bool){
for sender in pc.senders{
if (sender.track?.kind == "audio") {
sender.track?.isEnabled = mute
}
}
}