Packetized elementary stream
- Packetized elementary stream
Packetized Elementary Stream (PES) is a specification defined by the MPEG communication protocol (see the MPEG-2 standard) that allows an Elementary stream to be divided into packets [http://neuron2.net/library/mpeg2/iso13818-1.pdf] . The elementary stream is packetized by encapsulating sequential data bytes from the elementary stream inside PES packet headers.
A typical method of transmitting elementary stream data from a video or audio encoder is to first create PES packets from the elementary stream data and then to encapsulate these PES packets inside transport stream (TS) packets or program stream. The TS packets can then be multiplexed and transmitted using broadcasting techniques, such as those used in an ATSC and DVB.
PES packet header
Optional PES header
References
External links
* http://www.bretl.com/mpeghtml/pespckt.HTM
* http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
* ISO/IEC standard 13818-1 [http://neuron2.net/library/mpeg2/iso13818-1.pdf] )
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