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RFC 5109
Title: RTP Payload Format for Generic
Forward Error Correction
Author: A. Li, Ed.
Status: Standards Track
Date: December 2007
Mailbox: adamli@hyervision.com
Pages: 44
Characters: 100538
Obsoletes: RFC2733, RFC3009
See-Also:
I-D Tag: draft-ietf-avt-ulp-23.txt
URL: http://www.rfc-editor.org/rfc/rfc5109.txt
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 document 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 characteristics.
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. [STANDARDS TRACK]
This document is a product of the Audio/Video Transport
Working Group of the IETF.
This is now a Proposed Standard Protocol.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements.Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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