A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Using Simulcast in RTP Sessions
Author(s) : Magnus Westerlund
Bo Burman
Suhas Nandakumar
Filename : draft-westerlund-avtcore-rtp-simulcast-03.txt
Pages : 34
Date : 2013-10-21
Abstract:
In some application scenarios it may be desirable to send multiple
differently encoded versions of the same Media Source in independent
Source Packet Streams. This is called Simulcast. This document
discusses the best way of accomplishing Simulcast in RTP and how to
signal it in SDP. A solution is defined by making three extensions
to SDP, and using RTP/RTCP identification methods to relate RTP
Source Packet Streams. The first SDP extension consists of two new
session level SDP attributes that express capability to send or
receive Simulcast Source Packet Streams, respectively. The second
SDP extension introduces an SDP media level attribute that groups and
identifies a selected set of media level parameters for a specific
direction, called a media configuration. The third SDP extension
describes how to group such media configurations on SDP session or
media level for Simulcast purposes.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-westerlund-avtcore-rtp-simulcast
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-westerlund-avtcore-rtp-simulcast-03
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-westerlund-avtcore-rtp-simulcast-03
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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