I am working on a scenario where I will ask for the camera and mic permissions before joining the session. so I applied the following constraints in navigator.mediaDevices.getUserMedia
const constraints = {
audio: true,
video: {
width: 1280, height: 720
}
};
Everything works fine till here. But now I want to record the audio tracks only by using MediaRecorder. Other users can see the other peer's video but in the current session, I just want to record the audio content only for all users.
I tried setting up the MimeType but it still records the video content as well. I think MimeType is just for setting up the mime type for each track.
Do I need to do something on the server side where the blob data is uploaded?
You can create a new MediaStream object on which you'll add only the audio tracks from your current MediaStream:
const recording_stream = new MediaStream();
for (const track of gum_stream.getAudioTracks()) {
recording_stream.addTrack(track);
}
const recorder = new MediaRecorder(recording_stream);