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Code Issues Releases Wiki Activity

add comments to clarify screen sharing changes

This commit is contained in:
Khush Jammu 2020-06-06 18:55:22 +08:00
parent e5c92fe436
commit 315491aa75
1 changed files with 14 additions and 2 deletions
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16
public/js/chat.js
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@ -73,7 +73,14 @@ var VideoChat = {
onMediaStream: function (stream) {
logIt("onMediaStream");
VideoChat.localStream = stream;
VideoChat.localAudio = stream.getAudioTracks()[0];
// We need to store the local audio track, because
// the screen sharing MediaStream doesn't have audio
// by default, which is problematic for peer C who joins
// while another peer A/B is screen sharing (C won't receive
// A/Bs audio).
VideoChat.localAudio = stream.getAudioTracks()[0];
// Add the stream as video's srcObject.
// Now that we have webcam video sorted, prompt user to share URL
Snackbar.show({
@ -611,6 +618,10 @@ function swap() {
swapIcon.classList.remove("fa-desktop");
swapIcon.classList.add("fa-camera");
swapText.innerText = "Share Webcam";
// Add audio track to screen sharing MediaStream,
// in case another peer joins while screen is being
// shared.
stream.addTrack(VideoChat.localAudio);
console.log(stream);
switchStreamHelper(stream);
@ -622,7 +633,8 @@ function swap() {
});
// If mode is screenshare then switch to webcam
} else {
// Stop the screen share track
// Stop the screen share video track. (We don't want to
// stop the audio track obviously.)
VideoChat.localVideo.srcObject.getVideoTracks().forEach((track) => track.stop());
// Get webcam input
navigator.mediaDevices