Re: [rtcweb] Agenda time request for draft-marjou-rtcweb-audio-codecs-for-interop-01

Andrew Allen <> Wed, 13 March 2013 18:11 UTC

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From: Andrew Allen <>
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Thread-Topic: [rtcweb] Agenda time request for draft-marjou-rtcweb-audio-codecs-for-interop-01
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Date: Wed, 13 Mar 2013 18:11:37 +0000
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Subject: Re: [rtcweb] Agenda time request for draft-marjou-rtcweb-audio-codecs-for-interop-01
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It seems clear to me that other codecs will be included by most if not all RTCweb compliant browsers but which ones should be left up to implementers based on commercial decisions and which ones they include may change over time as codecs become obsoleted by new codecs. The MTIs are the ones that will always be supported to ensure interoperability other codecs will be supported when it makes sense.


----- Original Message -----
From: Adam Roach []
Sent: Wednesday, March 13, 2013 12:49 PM Central Standard Time
To: <>
Subject: Re: [rtcweb] Agenda time request for	draft-marjou-rtcweb-audio-codecs-for-interop-01

On 3/13/13 11:42, Olle E. Johansson wrote:
> I don't think everyone gets the that selecting a small subset as mandatory for WebRTC does NOT exclude all other codecs. Feel free to add everything you got. Have fun. Let the best mutual codec with the best mutual properties win the session.

Olle hit the nail squarely on the head. This is exactly the purpose of 
offer/answer negotiation: to find the best intersection of endpoint 
capabilities for the desired communication session. I'm bewildered by 
the fairly consistent misinterpretation that having an MTI codec somehow 
implies that every other codec becomes "MNTI".

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