Re: [MMUSIC] Feedback requested on requirements
worley@ariadne.com (Dale R. Worley) Thu, 25 April 2013 19:34 UTC
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Date: Thu, 25 Apr 2013 15:33:02 -0400
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From: worley@ariadne.com
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To: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Cc: mmusic@ietf.org
Subject: Re: [MMUSIC] Feedback requested on requirements
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> From: Paul Kyzivat <pkyzivat@alum.mit.edu> > >>> DES C4 Any additional m= lines prescribed by the bundle mechanism > >>> should be ordered after the constituent m= lines. > > If a "bundle" media description is to be added, it ought to be added > > *after* the m= lines for the constituent media streams, so that the > > "bundle" media description doesn't change which media description is > > identified as "the first audio media description", "the second audio > > media description", "the first video media description", etc. > > So, suppose A makes an offer to B with 4 m-lines to be bundled, with a > 5th "bundle" m-line after those. > > But then suppose B needs those split into two bundles with different > addresses. > > B could accept the initial offer but reject m-lines 2 & 4. So then there > is a bundle consisting of m-lines 1,3,5. > > Then it might send another offer back toward A, reactivating m-lines 2 & > 4, and adding m-line 6 as the bundle m-line for the second bundle. > Assuming A accepts that, then there will be two bundles, 1,3,5 and 2,4,6. > > Is that consistent with what you are proposing here? Yes, that seems consistent with this desideratum. The "bundle" m= lines are 5 (containing 1 and 3) and 6 (containing 2 and 4), and each of them follows all of the constituent m= lines. That makes it less likely that a simple-minded UA considers m= lines 5 and 6 to be usable media. In this particular case, B might want to accept 2 and 4, but disconnect them from the bundle (now containing 1 and 3 only). Then B could send a new offer bundling 2 and 4 separately. That prevents an interval during which 2 and 4 are inactive, which might not be the semantics B wants to present to A. Dale
- Re: [MMUSIC] Feedback requested on requirements Harald Alvestrand
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- [MMUSIC] "splitting" a bundle Paul Kyzivat
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] "splitting" a bundle Dale R. Worley
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Magnus Westerlund
- Re: [MMUSIC] Feedback requested on requirements Magnus Westerlund
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements -… Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Justin Uberti
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Martin Thomson
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] Feedback requested on requirements Paul Kyzivat
- Re: [MMUSIC] Feedback requested on requirements Paul Kyzivat
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] "splitting" a bundle Dale R. Worley
- Re: [MMUSIC] "splitting" a bundle Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] Feedback requested on requirements Paul Kyzivat
- Re: [MMUSIC] "splitting" a bundle Paul Kyzivat
- Re: [MMUSIC] "splitting" a bundle Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] "splitting" a bundle Paul Kyzivat
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg
- Re: [MMUSIC] Feedback requested on requirements Dale R. Worley
- Re: [MMUSIC] Feedback requested on requirements Christer Holmberg