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Re: [MMUSIC] Feedback requested on requirements

Christer Holmberg <christer.holmberg@ericsson.com> Tue, 07 May 2013 07:39 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: "Dale R. Worley" <worley@ariadne.com>
Thread-Topic: [MMUSIC] Feedback requested on requirements
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Date: Tue, 07 May 2013 07:38:51 +0000
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Cc: "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] Feedback requested on requirements
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Hi,

>>> But if the SBC does not reprocess media, but only *edits* what media 
>>> descriptions it permits in the SDP that it passes through, then 
>>> bundling can succeed as long as the bundling specification does not 
>>> require any element that the SBC removes.
>> 
>> I still don't get it :)
>> 
>> If an SBC needs to reprocess media, it obviously need to support the 
>> codecs used. But, that is true no matter whether BUNDLE is used or 
>> not.
>
> Yes, if you only consider the case of an SBC that needs to reprocess media, then there is nothing that can be done.
>
> But *the case I'm considering* is when the intermediate element (it might not be a proper SBC) edits the SDP but does not need to reprocess media.

Well, in that case it doesn't need to support the codec either, does it?

Regards,

Christer

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