WebRTC change Track while streaming

Wowza Streaming Engine
1

Hi everyone,

I’m currently implementing a streaing application with WebRTC and WSE 4.8.5. where you can user your webcam or share your screen into the world.

I have two questios:

  1. While on air, I want for the presenter to change from webcam to screensharing and vice versa. I know I can just call replaceTrack on my PeerConnection to swap them out. But I would like to do it in a clean way, because I read on webrtchacks.com that there could be promlems i.e. when changing the resolution. Now I can’t find I way to use the onnegotiationneeded emitter, because wowza tells my that my stream name is already in use. Is there way to get this working or should I just stay with the replacement?

  2. Can I use more than 3 track per connection?
    I want screensharing with

  • the videotrack
  • the audiotrack from the selected screen
  • an audio track from a microphone.
    The user Remy posted in slack that wowza only allows two tracks per PeerConnection (April 2020). I didn’t get it working till now, the second audio is omitted. Is there a way to send 3 tracks, or do I have to establish another connection?

Kind regards,
Andi

2

Sorry @Andreas_Specker, but that is not possible to do at this time through Wowza. Your only option would be hire a WebRTC consultant or Pro Services to have some custom work done and even then I’m not sure how well that would work within the our current WebRTC model.

3

Thanks for the reply!
At least I am certain now that the problem is not me :slight_smile: and I can work around somehow.