Remove, Add, Replace Tracks in case of External Stream

[Murtaz Naqvi]

Hi Meetecho Team,

Thank you for the awesome media server. 

The problem I am facing right now is, when I pass external stream from getUserMedia() to Janus JS SDK. All the media parameter stops working including removeVideo, replaceVideo etc. 

I want to renegotiate, what will be the best practice in case of external stream?

Regards.

Muhammad Murtaz 

[Christian Fynbo]

Hey!

I have the exact same question. Having searched the forum with no results (an older post from 2018 where Lorenzo justed linked to the API docs) I was about to make a post when Muhammad beat me to it.

Is there any way to provide own stream and still use replaceVideo? Any example?

[Nauman Moazzam]

Hey,

Did you find any solution yet? I am having same issue. Need example..

[Christian Fynbo]

No, awaiting help from Lorenzo (hopefully)

[Lorenzo Miniero]

I'm not going to work on that anytime soon. Too busy and other priorities, sorry.

L.

[Nikhil Doosari]

Hi guys, 

I  have a solution for this using  =>   pluginHandle.webrtcStuff.pc.getSenders()[0].replaceTrack(stream.getVideoTracks()[0],stream);

but here I am using only one RTP sender so directly I am taking getSender()[0]

if you're using audio and video you need to check RTP sender kind whether it is audio or video and you need to replace those kinds of tracks only

Thanks,

Nikhil 

[Christian Fynbo]

@Lorenzo - No one expect you to work on it - but a few years ago, someone asked the same question and you simply sent him a link to the JS docs. So maybe there was something we missed.

@Nikhil - Will try your solution - Do one need to do anything else besides your instructions?

[Nikhil Doosari]

@Fynbo there is no steps simply take a new stream and fetch the RTP sender from the previously published plugin handler and replace the track 

you can easily switch from one device to another, screen share stream to camera stream, and vice versa without attaching new plugins 

[Christian Fynbo]

It's working now by using replaceTrack but after a few switches or after muting video-feed, there is a huge delay.

First time it works fine but afterwards the video delay just keeps increasing. Any ideas?

[Yurii Cherniavskyi]

I think the best way to get some valuable help with such task/issue is to provide a minimal code snippet or event demo with which everyone could try to reproduce it.