This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

webrtc SDP re-negotiation(reoffer/answer) fails in mozilla

  • 2 replies
  • 3 have this problem
  • 2 views
  • Last reply by prasad.dp5

prasad.dp5
prasad.dp5
more options

I have written a webrtc client in which re-negotiation(re-offer/answer) is required after call gets established. Scenarios such as 1) upgrade calls from audio to video 2)Downgrade call from video to audio 3)Hold the established call 4) Retrieve the held call

I see mozilla/firefox has issues with re-negotiation of SDP( it fails in setting remote description). Any idea why is this a constraint in Mozilla and has no issues with Chrome.

I have written a webrtc client in which re-negotiation(re-offer/answer) is required after call gets established. Scenarios such as 1) upgrade calls from audio to video 2)Downgrade call from video to audio 3)Hold the established call 4) Retrieve the held call I see mozilla/firefox has issues with re-negotiation of SDP( it fails in setting remote description). Any idea why is this a constraint in Mozilla and has no issues with Chrome.

All Replies (2)

guigs
guigs
more options

https://developer.mozilla.org/en-US/d.../WebRTC_basics

Are you taking about the state change?: https://developer.mozilla.org/en-US/d.../RTCPeerConnection.onsignalingstatechange

Are you establishing a new connection then tearing down the old one as renegotiating, or are you reusing the existing stream? [Bug 834038 - SDP renegotiation should re-use existing streams when possible]

prasad.dp5
prasad.dp5 Question owner
more options

Yes, I was referring to statechange. I am re-using the same stream on same peerconnection object.

Problem still persists.