Re: [webrtc-pc] Missing CNAME in RID based simulcast offer (#2114)

https://tools.ietf.org/html/draft-ietf-rtcweb-rtp-usage-26#section-4.9

> Each RTP endpoint MUST have at least one RTCP CNAME, and that RTCP
   CNAME MUST be unique within the RTCPeerConnection.  RTCP CNAMEs
   identify a particular synchronisation context, i.e., all SSRCs
   associated with a single RTCP CNAME share a common reference clock.
   If an endpoint has SSRCs that are associated with several
   unsynchronised reference clocks, and hence different synchronisation
   contexts, it will need to use multiple RTCP CNAMEs, one for each
   synchronisation context.

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Received on Tuesday, 5 March 2019 19:20:34 UTC