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Re: [MMUSIC] DECISION (BERLIN-Q1/Q2/Q7): Usage of specific PT value for single codec configuration

Christer Holmberg <christer.holmberg@ericsson.com> Tue, 10 September 2013 09:56 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: mmusic <mmusic@ietf.org>
Thread-Topic: [MMUSIC] DECISION (BERLIN-Q1/Q2/Q7): Usage of specific PT value for single codec configuration
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Date: Tue, 10 Sep 2013 09:56:22 +0000
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Cc: "Jonathan Lennox (jonathan@vidyo.com)" <jonathan@vidyo.com>
Subject: Re: [MMUSIC] DECISION (BERLIN-Q1/Q2/Q7): Usage of specific PT value for single codec configuration
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Hi,

Below is the "official" (from the minutes) outcome of questions Q1,Q2 and Q7 in Berlin.

Questions:

Q1: "Can we agree that, within a BUNDLE group (including all m- lines associated with the group), any given PT value can only be used for a single codec configuration?"
Q2: "If Q1, do we agree that we need EXPLICIT text somewhere*, as there are opinions that simply referencing RFC 3550 might not be clear enough?"
Q7: "Within a BUNDLE group, do we allow the usage of the same PT value in multiple RTP m- lines, for the SAME codec configuration?"

Outcome:

Q1: Yes
Q2: Yes, Lennox will send suggested text to clarify the term "codec configuration".
Q7: Yes.

So, again, we need definition text for "codec configuration". Jonathan promised to submit something, but anyone is of course welcome to do that.

The other alternative is to not say anything about PT value usages within the scope of BUNDLE, but that is not what the meeting wanted.

Regards,

Christer


From: mmusic-bounces@ietf.org [mailto:mmusic-bounces@ietf.org] On Behalf Of Christer Holmberg
Sent: 23. elokuuta 2013 13:53
To: mmusic
Subject: [MMUSIC] DECISION (BERLIN-Q1/Q2/Q7): Usage of specific PT value for single codec configuration

Hi,

One of the open issues related to BUNDLE presented in Berlin (Q1, Q2 and Q7 in my slides) was regarding the usage of any given PT value.

My take of the outcome was that:


-          We agreed that any given PT value can only be used for a single codec configuration (Q1)

-          We agreed that we need some definition text for "codec configuration" (Q2)

-          We agreed that, within a BUNDLE group, any given PT value can be used in multiple m- lines, as long as it is used for a single codec configuration (Q7).

Jonathan Lennox promised to suggest some definition text for "codec configuration", so let's wait for that until we go into those discussions.

But, if you have any issues with the agreements in general, please bring them up :)

Regards,

Christer

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