Using Codec Control Messages in the RTP Audio-Visual Profile with Feedback with Layered Codecs

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Last updated 2015-12-09
Replaced by draft-ietf-avtext-avpf-ccm-layered
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document fixes a shortcoming in the specification language of the Codec Control Message Full Intra Request (FIR) as defined in RFC5104 when using with layered codecs. In particular, a Decoder Refresh Point needs to be sent by a media sender when a FIR is received on any layer of the layered bitstream, regardless on whether those layers are being sent in a single or in multiple RTP flows. The other payload-specific feedback messages defined in RFC 5104 and RFC 4585 as updated by RFC 5506 have also been analyzed, and no corresponding shortcomings have been found.


Stephan Wenger (
Jonathan Lennox (
Bo Burman (
Magnus Westerlund (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)