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

Iñaki Baz Castillo <ibc@aliax.net> Thu, 14 July 2016 09:16 UTC

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From: Iñaki Baz Castillo <ibc@aliax.net>
Date: Thu, 14 Jul 2016 11:13:45 +0200
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To: Christer Holmberg <christer.holmberg@ericsson.com>
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Cc: Jonathan Lennox <jonathan@vidyo.com>, mmusic <mmusic@ietf.org>, Peter Thatcher <pthatcher@google.com>, IETF AVTCore WG <avt@ietf.org>
Subject: Re: [AVTCORE] [MMUSIC] BUNDLE: a single stream with multiple MIDs?
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2016-07-14 11:03 GMT+02:00 Christer Holmberg <christer.holmberg@ericsson.com>:
> Second, IF we want to do something like this, should it instead be done on a
> higher application/CLUE layer?  Why start mixing up the lower-layer MID
> semantics etc?

Some ugly stuff regarding SDP is the fact that m-lines are indexed by
their position, which means that they cannot be removed within the
same session.

Then a=mid comes to the rescue and provides a per m-line unique
identifier, leaving the door open for a future spec change allowing
m-lines removal (have you ever seen how an SDP from a SFU with
participants entering and leaving the room grows?).

The current proposal breaks that. Please let's MID to be a single,
unique and mandatory attribute per m-line.


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

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