A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Audio/Video Transport Payloads Working Group of the IETF.
Title : RTP Payload Format for Non-Interleaved and Interleaved Parity Forward Error Correction (FEC)
Authors : Varun Singh
Ali Begen
Mo Zanaty
Filename : draft-ietf-payload-flexible-fec-scheme-00.txt
Pages : 40
Date : 2015-02-14
Abstract:
This document defines new RTP payload formats for the Forward Error
Correction (FEC) packets that are generated by the non-interleaved
and interleaved parity codes from a source media encapsulated in RTP.
These parity codes are systematic codes, where a number of repair
symbols are generated from a set of source symbols. These repair
symbols are sent in a repair flow separate from the source flow that
carries the source symbols. The non-interleaved and interleaved
parity codes offer a good protection against random and bursty packet
losses, respectively, at a cost of decent complexity. The RTP
payload formats that are defined in this document address the
scalability issues experienced with the earlier specifications
including RFC 2733, RFC 5109 and SMPTE 2022-1, and offer several
improvements. Due to these changes, the new payload formats are not
backward compatible with the earlier specifications, but endpoints
that do not implement the scheme can still work by simply ignoring
the FEC packets.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-payload-flexible-fec-scheme/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-payload-flexible-fec-scheme-00
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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