Renegotiating streams?

[Erik Goldman]

Hello! I'm building an application that receives a WebRTC connection from a browser client and then may need to add or remove streams after the connection has been established. In particular, it's a chat room where people can join/leave, so I want to create a stream per user and have it show up on everyone's browser.

Initially, the browser sends an offer (its camera + microphone feed) and medooze sends an answer (receiving that data but not sending anything). As more participants join, however, they'll perform the same handshake and I'd like medooze to add additional tracks to the original connection for these new participants.

Is the best way to do this to have medooze send an offer to an existing connection when a new participant joins? If so, how do I do that? I'm not sure how to create the proper SDP for that renegotiation.

Thank you!

[Sergio Garcia Murillo]

Hi!

You can use the SDPManager to handle the renegotiation server side:

https://medooze.github.io/media-server-node/#sdpmanager

You can find an example of usage on the demo sfu:

https://github.com/medooze/sfu/blob/master/lib/Participant.js

You can also use the peerconnection client lib to do it on client side:

https://github.com/medooze/media-server-client-js

Best regards

Sergio

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[Erik Goldman]

Oh great, this helped a lot. Thank you so much!

On Thursday, July 16, 2020 at 5:06:30 AM UTC-7, Sergio Garcia Murillo wrote:

Hi!

You can use the SDPManager to handle the renegotiation server side:

https://medooze.github.io/media-server-node/#sdpmanager

You can find an example of usage on the demo sfu:

https://github.com/medooze/sfu/blob/master/lib/Participant.js

You can also use the peerconnection client lib to do it on client side:

https://github.com/medooze/media-server-client-js

Best regards

Sergio

On 16/07/2020 6:06, Erik Goldman wrote:

Hello! I'm building an application that receives a WebRTC connection from a browser client and then may need to add or remove streams after the connection has been established. In particular, it's a chat room where people can join/leave, so I want to create a stream per user and have it show up on everyone's browser.

Initially, the browser sends an offer (its camera + microphone feed) and medooze sends an answer (receiving that data but not sending anything). As more participants join, however, they'll perform the same handshake and I'd like medooze to add additional tracks to the original connection for these new participants.

Is the best way to do this to have medooze send an offer to an existing connection when a new participant joins? If so, how do I do that? I'm not sure how to create the proper SDP for that renegotiation.

Thank you!

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