A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Audio/Video Transport Working Group of the IETF.
Title : An RTP Payload Format for Generic FEC with Uneven Level Protection
Author(s) : A. Li
Filename : draft-ietf-avt-ulp-08.txt
Pages : 33
Date : 2003-10-28
This document specifies a payload format for generic Forward
Error Correction (FEC) for media data encapsulated in RTP. It is
based on the exclusive-or (parity) operation, and it is a
generalized algorithms that includes Uneven Level Protection
(ULP). The payload format described in this draft allows end
systems to apply protection using arbitrary protection lengths
and levels, in addition to using arbitrary protection group
sizes. It enables complete recovery or partial recovery of the
critical payload and RTP header fields depending on the packet
loss situation. This scheme is completely backward compatible
with non-FEC capable hosts. Those receivers that do not know
about FEC can simply ignore the protection data. This draft will
obsolete RFC 2733 and RFC 3009.
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