A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : RTP Multiple Stream Sessions and Simulcast
Author(s) : Magnus Westerlund
Bo Burman
Filename : draft-westerlund-avtcore-multistream-and-simulcast-00.txt
Pages : 60
Date : 2011-07-04
RTP has always been a protocol that supports multiple participants
each sending their own media streams in an RTP session.
Unfortunately many implementations aimed only at point to point voice
over IP with a single source in each end-point. Even client
implementations aimed at video conferences have often been built with
the assumption around central mixers that only deliver a single media
stream per media type. Thus any application that wants to allow for
more advance usage where multiple media streams are sent and received
by an end-point has a problem with legacy. This issue is analyzed,
and RTP clarifications and signalling extensions are proposed to
handle this issue. A related issue is how to perform simulcast, in
the meaning of sending multiple encodings or representations of the
same media source, when using RTP for media transport. This is
further analyzed and possible solutions discussed and we arrive at a
conclusion for session multiplexing of simulcast versions. We also
found a number of related issues when having multiple streams and
simulcast.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-westerlund-avtcore-multistream-and-simulcast-00.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-westerlund-avtcore-multistream-and-simulcast-00.txt
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