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 SVC Video
Author(s) : S. Wenger, et al.
Filename : draft-ietf-avt-rtp-svc-14.txt
Pages : 96
Date : 2008-09-26
This memo describes an RTP payload format for Scalable Video Coding
(SVC) as defined in_Annex G of ITU-T Recommendation H.264, which is
technically identical to Amendment 3 of ISO/IEC International
Standard 14496-10. The RTP payload format allows for packetization
of one or more Network Abstraction Layer (NAL) units in each RTP
packet payload, as well as fragmentation of a NAL unit in multiple
RTP packets. Furthermore, it supports transmission of an SVC stream
over a single as well as multiple RTP sessions. For single-session
transmission the packetization modes of RFC 3984 are used. For
multi-session transmission four different modes are defined in this
memo. The modes differ depending on whether the SVC data are
allowed to be interleaved, i.e., to be transmitted in an order
different than the intended decoding order, and they also differ in
the mechanisms provided in order to recover the correct decoding
order of the NAL units across the multiple RTP sessions.
Specifically, decoding order recovery is performed using either
timestamp alignment or Cross-Session Decoding Order Numbers (CS-
DON), although in one of the modes both schemes are used in order to
allow receivers to use their preferred method. The multi-session
transmission modes use the packetization modes defined in RFC 3984
as each individual session still uses a packetization mode defined
in RFC 3984. The packetization modes defined in RFC 3984 are
slightly extended such that the three new NAL unit types defined in
this memo can be included in the RTP packet streams. The payload
format defines a new media subtype name "H264-SVC", but is still
backwards compatible to RFC 3984 since the base layer, when
encapsulated in its own RTP stream, must use the H.264 media subtype
name ("H264") and the packetization method specified in RFC 3984.
The payload format has wide applicability in videoconferencing,
Internet video streaming, and high bit-rate entertainment-quality
video, among others.
Table of Contents
Status of this Memo...............................................1
Copyright Notice..................................................1
Abstract..........................................................2
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-avt-rtp-svc-14.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-ietf-avt-rtp-svc-14.txt>
-
_______________________________________________
I-D-Announce@ietf.org
https://www.ietf.org/mailman/listinfo/i-d-announce
Internet-Draft directories: http://www.ietf.org/shadow.html
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
