Video Freezing on Firefox

[Juliusz Mandrosz]

Hi,

I am using a video room plugin. After disabling camera on Firefox, there is a 3 seconds latency until video track is removed completely and also onRemoteStream is called. Because of this latency, when I am shutting off my camera, other participants sees my video frozen for 3 seconds. I've noticed that firefox doesn't seem to notify onmute/onunmute events, so i am implemented different way to remove video tracks, so in my function which is responsible for toggle mute/unmute video, i am creating an offer with removing video, without that there was a infinite freeze. Unfortunately there is still latency between renegotiations, is there any solution to solve this kind of problem?

[Lorenzo Miniero]

Probably related to this: https://github.com/meetecho/janus-gateway/pull/2147

L.

[Juliusz Mandrosz]

Thank you for quick response, i've seen that post before and I have already updated Janus to this version, but now i found that this delay was caused by stopping track in prepareWebRTC function: 

if(media.removeVideo || media.replaceVideo) {

if(config.myStream && config.myStream.getVideoTracks() && config.myStream.getVideoTracks().length) {

var vt = config.myStream.getVideoTracks()[0];

Janus.log("Removing video track:", vt);

config.myStream.removeTrack(vt);

try {

//vt.stop();

} catch(e) {}

}, 

I've commented out line responsible for stopping a track and there isn't any delay now, but it caused another problem, because camera LED is still on, even after turning it off.

[Juliusz Mandrosz]

i found some workaround for the problem. So instead of stopping a track, I am doing something like this: vt.enabled = false; And it seems to work as expected, no delay after renegotiation and camera LED is turning off. What do you think about this solution?