I want to use my own stream when I do a renegotiation. The standard way is to pass the media parameter to the createOffer function. In this case, Janus handles the getUserMedia request.
async switchCamera() {
this.videoCall.createOffer({
media: {
replaceVideo: true
},
success: (jsep) => {
this.videoCall.send({message: {request:"set"}, "jsep": jsep});
},
error: (e) => {
alert(e);
}
});
}
In my case, I want to do it by myself. I've created the following function:
async switchCamera() {
cameraHelper.switchCamera(); // Sets facing mode
this.localStream = await cameraHelper.requestMedia(); // Returns media stream
this.videoCall.createOffer({
stream: this.localStream,
success: (jsep) => {
this.videoCall.send({message: {request:"set"}, "jsep": jsep});
},
error: (e) => {
alert(e);
}
});
}
If I call the switchCamera function, Chrome crashes on the receivers side. The last error message before the crash is the following one:
Uncaught DOMException: Failed to execute 'addTrack' on 'RTCPeerConnection': A sender already exists for the track.
Do I have to execute some other functions before I can add a new stream?
