Re: [rtcweb] Separating stream manipulation from the SDP loudness (Re: Proposed Plan for Usage of SDP and RTP)

worley@ariadne.com (Dale R. Worley) Mon, 11 March 2013 16:01 UTC

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Date: Mon, 11 Mar 2013 12:00:00 -0400 (EDT)
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From: worley@ariadne.com (Dale R. Worley)
Sender: worley@ariadne.com (Dale R. Worley)
To: Harald Alvestrand <harald@alvestrand.no>
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Cc: rtcweb@ietf.org
Subject: Re: [rtcweb] Separating stream manipulation from the SDP loudness (Re: Proposed Plan for Usage of SDP and RTP)
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> From: Harald Alvestrand <harald@alvestrand.no>
> 
> One that I've heard mention is if the remote gateway requires stuff in 
> the SDP that the browser knows nothing about. (I've never encountered 
> this in practice, but it wouldn't surprise me if it happens).

I would be surprised if this happens much.  In the offer/answer arena,
backward compatibility considerations mean that the recipient of SDP
is always prepared to receive *less* information about the media than
it would prefer to receive, and to process such SDP successfully.

Dale