A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : RTP Payload Format for MPEG2-TS Preamble
Author(s) : A. Begen
Filename : draft-begen-avt-rtp-mpeg2ts-preamble-00.txt
Pages : 22
Date : 2009-03-04
Demultiplexing and decoding an MPEG2 Transport Stream (MPEG2-TS)
requires the knowledge of specific information about the transport
stream, which we refer to as the MPEG2-TS Preamble. While this
information is spread over different locations throughout the
transport stream and can be eventually assembled after some time a
receiver started receiving the MPEG2-TS, the time it takes to
retrieve all this information (especially in multicast environments)
may be long. Instead, having this information readily available as a
Preamble and sending the Preamble to a receiver that will shortly
start receiving the transport stream will virtually eliminate the
waiting time and let the receiver start processing/decoding the
MPEG2-TS sooner. In this document, we give an overview of the
MPEG2-TS and the delay components in video systems, and motivate the
need for constructing and using the MPEG2-TS Preamble for rapidly
synchronizing with the source stream in RTP multicast sessions. We
also define and register the RTP payload format for the MPEG2-TS
Preamble.
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http://www.ietf.org/internet-drafts/draft-begen-avt-rtp-mpeg2ts-preamble-00.txt
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