Re: [MMUSIC] Fwd: New Version Notification for draft-ietf-mmusic-msid-01.txt

I have a fundamental question about this draft:

With Unified Plan we have a unique m-line for every MediaStreamTrack.
Given that, why do we need the msid attribute? Isn't it sufficient to 
define a new semantic ("mediastream"?) for the grouping framework? 
(RFC3388).

There would still be need for a way to convey the application data, but 
that can be done via another attribute ("mediastream-data"?) associated 
with the m-line.

	Thanks,
	Paul

On 8/13/13 2:24 PM, Harald Alvestrand wrote:
> The auto-poster doesn't seem to want to tell mmusic about this....
>
> this is updated according to Unified-plan. Since it was only 1 day
> before the old version had expired, the proofreading might be a little
> light - please point out places where I had missed changing "SSRC" to
> "m-line"!
>
> I retained some description of the old mechanism (using a=ssrc) in an
> appendix. Please state opinions on whether this should be retained as
> informative, promoted to normative, or removed entirely in the next version.
>
> Hope this informs!
>
>         Harald
>
>
> -------- Original Message --------
> Subject: 	New Version Notification for draft-ietf-mmusic-msid-01.txt
> Date: 	Tue, 13 Aug 2013 05:13:42 -0700
> From: 	internet-drafts@ietf.org
> To: 	Harald T. Alvestrand <harald@alvestrand.no>, Harald Alvestrand
> <harald@alvestrand.no>
>
>
>
> A new version of I-D, draft-ietf-mmusic-msid-01.txt
> has been successfully submitted by Harald Alvestrand and posted to the
> IETF repository.
>
> Filename:	 draft-ietf-mmusic-msid
> Revision:	 01
> Title:		 Cross Session Stream Identification in the Session Description Protocol
> Creation date:	 2013-08-13
> Group:		 mmusic
> Number of pages: 14
> URL:http://www.ietf.org/internet-drafts/draft-ietf-mmusic-msid-01.txt
> Status:http://datatracker.ietf.org/doc/draft-ietf-mmusic-msid
> Htmlized:http://tools.ietf.org/html/draft-ietf-mmusic-msid-01
> Diff:http://www.ietf.org/rfcdiff?url2=draft-ietf-mmusic-msid-01
>
> Abstract:
>     This document specifies a grouping mechanism for RTP media streams
>     that can be used to specify relations between media streams.
>
>     This mechanism is used to signal the association between the SDP
>     concept of "m-line" and the WebRTC concept of "MediaStream" /
>     "MediaStreamTrack" using SDP signaling.
>
>     This document is a work item of the MMUSIC WG, whose discussion list
>     ismmusic@ietf.org.
>
>
>
>
>
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
>
> The IETF Secretariat
>
>
>
>
>
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