RE: Issue 131: Section 9.14 RTP Header extensions

Sorry, should be RFC 5450 below. 
________________________________________
From: Bernard Aboba [Bernard.Aboba@microsoft.com]
Sent: Tuesday, July 15, 2014 1:32 PM
To: public-ortc@w3.org
Subject: Re: Issue 131: Section 9.14 RTP Header extensions

RFC 5045 is included in the list of RTP header extensions in Section 9.14, even though  it isn't mentioned in RTP usage.   Was this a mistake?

Also RFC 6051 is not included in the list of header extensions, although it is mentioned in RTP-Usage Section 5.2.1:

5.2.1. Rapid Synchronisation

Many RTP sessions require synchronisation between audio, video, and
other content. This synchronisation is performed by receivers, using
information contained in RTCP SR packets, as described in the RTP
specification [RFC3550]. This basic mechanism can be slow, however,
so it is RECOMMENDED that the rapid RTP synchronisation extensions
described in [RFC6051] be implemented in addition to RTCP SR-based
synchronisation. The rapid synchronisation extensions use the
general RTP header extension mechanism [RFC5285], which requires
signalling, but are otherwise backwards compatible.


Proposed change is to add RFC 6051 to the list of header extensions and remove RFC 5045.

Received on Tuesday, 15 July 2014 21:22:27 UTC