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PR 290: Remove maxMbps, maxSmbps, maxFs, maxCpb, maxDpb and maxBR from the list of H.264 Sender Settings

From: Bernard Aboba <Bernard.Aboba@microsoft.com>
Date: Tue, 1 Dec 2015 22:18:19 +0000
To: "public-ortc@w3.org" <public-ortc@w3.org>
Message-ID: <BLUPR03MB1497298D69607D2369FA081EC0F0@BLUPR03MB149.namprd03.prod.outlook.com>
Section 9.7.2.3 of the November ORTC API editor's draft (see http://ortc.org/wp-content/uploads/2015/11/ortc.html) included maxMbps, maxSmbps, maxFs, maxCpb, maxDpb and maxBR as sender settings of the H.264 codec.

During the ORTC CG meeting, there was a question about whether those were indeed sender settings - or whether RFC 6184 states they are only to be used as receiver capabilities.

RFC 6184 Section  8.2.2 says:

The parameters identifying a media format configuration for H.264 are profile-level-id and packetization-mode.

This is consistent with Table 6 in RFC 6184 Section 8.2.2 where only profile-level-id and packetization-mode are listed as properties of the stream to be sent (the other parameters are only associated with the receiver).

So it does appear that there is an error in Section 9.7.2.3.

I have submitted Pull Request 290 to remove maxMbps, maxSmbps, maxFs, maxCpb, maxDpb and maxBR from the list of H.264 sender codec settings:
https://github.com/openpeer/ortc/pull/290
Received on Tuesday, 1 December 2015 22:18:52 UTC

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