Re: [AVTCORE] [MMUSIC] BUNDLE: a single stream with multiple MIDs?

[Magnus Westerlund <[e-mail]>]

Den 2016-07-08 kl. 00:36, skrev Jonathan Lennox:

> (My initial design proposal was to allow multiple SDES values of the
> same type, and multiple SDES header extensions items of the same
> type, to be sent simultaneously in RTP — protocol-syntactically this
> is trivial, you’d just need to negotiate that you support it.  But
> I’m not wedded to this solution.)
>

So, if one is going to enable multiple concurrent values for SDES items 
that clearly needs an RTP extension which defines how one does. It also 
needs to discuss which SDES items of the existing that can be used in 
this way and what it means. There also needs to be clear procedures for 
how one deals with updates of the current set. Clearly this needs to be 
a signalled extension as you say.

I think this is clearly work belonging to the AVTCORE WG.

> What do people think — is this worth working on?  Is there interest
> in discussing it in Berlin, and if so, in what venue?

I think this is worth some more thinking. My review of the RID drafts 
mad it clear to me that we might not have sufficiently thought through 
how the scoping and interactions are between the different new 
labellings we have for RTP stream. And this also points at another 
aspect, the expectations of what is produced from a media description. 
For media source that are what I call conceptual, like the "current 
speaker" or role based like "meeting chair", there clearly need to be 
understanding how this interacts in the signalling solutions.

I am sorry to say that I have lost track of where CLUE has ended up and 
the interaction between SDP and the CLUE layer.

I don't want to commit to anything, but I am happy to continue 
discussing this.

Cheers

Magnus Westerlund

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