Using Codec Control Messages in the RTP Audio-Visual Profile with Feedback with Layered Codecs
RFC 8082, “Using Codec Control Messages in the RTP Audio-Visual Profile with Feedback with Layered Codecs”, is a Proposed Standard document published in March 2017 by S. Wenger, J. Lennox, B. Burman, M. Westerlund. It updates RFC 5104. The canonical text is published by the RFC Editor.
Abstract
This document updates RFC 5104 by fixing a shortcoming in the specification language of the Codec Control Message Full Intra Request (FIR) description when using it 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 of 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 (which was updated by RFC 5506) have also been analyzed, and no corresponding shortcomings have been found.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8082 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 8081 The "font" Top-Level Media Type
- RFC 8083 Multimedia Congestion Control: Circuit Breakers for Unicast RTP Sessions
- RFC 8080 Edwards-Curve Digital Security Algorithm for DNSSEC
- RFC 8084 Network Transport Circuit Breakers
- RFC 8079 Guidelines for End-to-End Support of the RTP Control Protocol in Back-to-Back User Agents
- RFC 8085 UDP Usage Guidelines
- RFC 8078 Managing DS Records from the Parent via CDS/CDNSKEY
- RFC 8086 GRE-in-UDP Encapsulation