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Re: [MMUSIC] Proposal for what bundle should say about demux

Kevin Dempsey <kevindempsey70@gmail.com> Fri, 24 May 2013 08:40 UTC

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Date: Fri, 24 May 2013 09:40:16 +0100
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From: Kevin Dempsey <kevindempsey70@gmail.com>
To: Emil Ivov <emcho@jitsi.org>
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Cc: mmusic <mmusic@ietf.org>, Paul Kyzivat <pkyzivat@alum.mit.edu>
Subject: Re: [MMUSIC] Proposal for what bundle should say about demux
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Isn't the onus on the answerer to ensure the demux is possible, since it is
accepting the bundle. Therefore if it doesn't support signalling SSRCs or
an offerred 'fancy-RFC m-line matching' method, it must only send PTs that
are tied to a single m-line.


On 24 May 2013 08:17, Emil Ivov <emcho@jitsi.org> wrote:

> On 24.05.13, 00:59, Paul Kyzivat wrote:
> > IMO the "before the O/A completes" issues are separate from the "after
> > the O/A completes" issues. I'm still not convinced that the "before the
> > O/A completes" issues are important. (We have reliable 183 responses to
> > deal with it.) But I'm ok with Cullen using PT to solve that problem if
> > he thinks he needs to.
>
> I wasn't referring to "before the O/A completes" situations. If your
> peer does not support fancy-RFC m-line matching nor does it provide
> SSRCs, you have to be able to fall back to PT demuxing.
>
> Therefore, all your offers have to accommodate for that possibility
> unless you know that the offer is going to someone who also supports
> other mechanisms.
>
> Emil
>
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