Re: [webrtc-pc] webrtc-pc does not say to clear RTCRtpCodingParameters.rid when sRD rejects simulcast (#2736)

The more I think about this, the more I think it is a mistake to omit the rid when there is a (single) rid in SDP negotiation. This is because a reoffer could potentially go from this:

a=simulcast:recv 1;2;3

to this

a=simulcast:recv 2

That is, the remote side has decided to switch from simulcast to unicast, but wishes to keep the _second_ encoding. It would be impossible to signal this appropriately to JS without keeping the rid property.

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Received on Thursday, 15 September 2022 17:26:12 UTC