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

Christer Holmberg <christer.holmberg@ericsson.com> Wed, 13 July 2016 09:27 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Iñaki Baz Castillo <ibc@aliax.net>, Jonathan Lennox <jonathan@vidyo.com>
Thread-Topic: [AVTCORE] [MMUSIC] BUNDLE: a single stream with multiple MIDs?
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Date: Wed, 13 Jul 2016 09:27:35 +0000
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Cc: IETF AVTCore WG <avt@ietf.org>, mmusic <mmusic@ietf.org>
Subject: Re: [AVTCORE] [MMUSIC] BUNDLE: a single stream with multiple MIDs?
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Hi,

CLUE and BUNDLE are two separate things, and CLUE doesn¹t require usage of
BUNDLE.

Regards,

Christer


On 13/07/16 11:53, "avt on behalf of Iñaki Baz Castillo"
<avt-bounces@ietf.org on behalf of ibc@aliax.net> wrote:

>2016-07-08 0:36 GMT+02:00 Jonathan Lennox <jonathan@vidyo.com>:
>> The use case is where one m-line has a semantic of ³always view this
>>person² (my boss, say, or my customer); and another m-line has a
>>semantic of ³the current loudest speaker².
>
>Why is another m-line required for the "current loudest speaker" at all?
>
>Who the current speaker is can be known by means of RTP header
>extensions in client side. It can be also signaled by the server in
>any custom way (out of the scope of SDP). Any of those mechanisms is
>better than having yet another artificial m-line for that purpose.
>
>I don't know CLUE, but assuming it pursuits similar aim than BUNDLE, I
>think we should keep to a more declarative SDP syntax in which each
>m-line represents a specific "media stream track" from a single
>participant in the session, identified by a fixed MID (plus RID if the
>sender switches to another media encoding).
>
>If we can not even guarantee that, then SDP becomes extremely hard to
>understand.
>
>
>-- 
>Iñaki Baz Castillo
><ibc@aliax.net>
>
>_______________________________________________
>Audio/Video Transport Core Maintenance
>avt@ietf.org
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