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Re: [MMUSIC] BUNDLE: no reason por payload type to be unique within bundled m= lines

Iñaki Baz Castillo <ibc@aliax.net> Tue, 08 March 2016 23:47 UTC

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From: Iñaki Baz Castillo <ibc@aliax.net>
Date: Wed, 09 Mar 2016 00:46:42 +0100
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To: Christer Holmberg <christer.holmberg@ericsson.com>
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Cc: Magnus Westerlund <magnus.westerlund@ericsson.com>, "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] BUNDLE: no reason por payload type to be unique within bundled m= lines
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2016-03-09 0:40 GMT+01:00 Iñaki Baz Castillo <ibc@aliax.net>:
> 2016-03-08 20:11 GMT+01:00 Christer Holmberg <christer.holmberg@ericsson.com>:
>>>If what I say in my previous email is true (maximum of 16 audio+video participants in a WebRTC multi-stream SFU conference) I think there is a big problem in BUNDLE, and hence in MMUSIC.

Let me please insist on my question, because I don't understand yet
how to implement it:

If Alice and Bob send h264 with same exact parameters, and Carol
wishes to receive both video streams over the same transport (so 2
m=audio sections using BUNDLE), how should those m=audio sections look
like? Each one will use specific SSRC values but, can both have the
same PT for h264 or not?

If not, then WebRTC 1.0 just allows SFU conferences of 16 participants
(assuming each participant sends audio and video).

If I'm wrong, please let me know how such a SDP received by Carol should look.

Thanks a lot.


-- 
Iñaki Baz Castillo
<ibc@aliax.net>

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