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 : RTP Payload Format for Generic Forward Error Correction
Author(s) : A. Li
Filename : draft-ietf-avt-ulp-18.txt
Pages : 42
Date : 2006-6-28
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. The payload format
described in this draft allows end systems to apply protection
using various protection lengths and levels, in addition to
using various protection group sizes to adapt to different media
and channel characteristic. It enables complete recovery of the
protected packets or partial recovery of the critical parts of
the payload depending on the packet loss situation. This scheme
is completely compatible with non-FEC capable hosts, so the
receivers in a multicast group that do not implement FEC can
still work by simply ignoring the protection data. This
specification obsoletes RFC 2733 and RFC 3009. The FEC specified
in this document is not backward compatible with RFC 2733 and
RFC 3009.
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