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[rtcweb] Drop RFC 4588 RTX session multiplexing support requirement from RTP USAGE

Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com> Tue, 21 October 2014 18:58 UTC

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Date: Tue, 21 Oct 2014 20:58:32 +0200
From: Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
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Subject: [rtcweb] Drop RFC 4588 RTX session multiplexing support requirement from RTP USAGE
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Hi all,

Not sure if it is done on pourpose, but according to the RTP usage 
draft, it may seem that full RFC 4588 is mandated at the recevier side:

     Receivers are REQUIRED to implement support for RTP retransmission
     packets [RFC4588  <https://tools.ietf.org/html/rfc4588>].


That would include both modes, session and ssrc multiplexing. Given the 
extensive usage of bundle and current implementations, session 
multiplexing support doesn't make much sense.

Should we drop it, and state that only ssrc-multiplexing shall be 
supported at the receiving end?

Best regards
Sergio

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