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Re: [AVT] Open issue on hdrext draft




On Oct 4, 2007, at 8:48 AM, Dave Singer wrote:

At 13:43 +0200 4/10/07, Magnus Westerlund wrote:
Imed.Bouazizi at nokia.com skrev:
 Hi,

An RTP gateway (translator/mixer) that for some reason does not
receive/parse the SDP and is then not aware of the mapping between the
RTP header extension and the ID will not be able to process the RTP
packet appropriately. This speaks for IETF agreed registration (option
c).

I think this is an irrelevant comment as any mixer or translator that
needs to understand the packet content anyway will require to be part of
the signalling context. Thus, I don't think there is a any benefit at
all with static mappings.

I agree; the general question "should RTP packets be comprehensible without their signaling context" is outside the scope of this discussion (though my sense is that the consensus direction is "no", as shown, for example, by the fact that we no longer approve of static payload type mappings).

Agree we should keep that questions as a sperate one (and I think we will easily get to an answer on it)


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