Re: [MMUSIC] Unified Plan for SDP Handling - multiple media sources

Martin Thomson <martin.thomson@gmail.com> Tue, 16 July 2013 22:57 UTC

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Date: Tue, 16 Jul 2013 15:57:30 -0700
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From: Martin Thomson <martin.thomson@gmail.com>
To: Jonathan Lennox <jonathan@vidyo.com>
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Subject: Re: [MMUSIC] Unified Plan for SDP Handling - multiple media sources
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On 16 July 2013 15:46, Jonathan Lennox <jonathan@vidyo.com> wrote:
> Have you read http://tools.ietf.org/html/draft-even-mmusic-application-token-00.txt ?  This is a more fleshed-out version of the same idea, as I understand the idea in Unified, written to be agnostic between Plans A / B / No Plan.

I have read that draft.  I don't see any major problems with it.  That
is, aside from some serious ugliness when it comes to no-plan to the
extent that I don't believe it to be practical (if I've understood the
intent).

My current leaning is toward a (small) number if the unified plan is
chosen, simply because so much else depends on the existence of
signaling; a no-plan-style approach would provide greater motivation
for having all the bits present.  That said, I don't have enough
information yet to be able to make the header extension size vs. need
for signaling trade-off.