Packetized Elementary Stream
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Defined by MPEG communication protocol. An Elementary stream is packetized by adding a packet header. An elementary stream contains only one kind of data, for example audio or video. The output of a video encoder is an elementary stream which is then packetized. Packet protocol allows:
- Multiplexing of the data and to minimize the size of buffers (reduce cost) in receivers.
- Error detection and control.
| Name | Size | Description
|
|---|---|---|
| Packet start code prefix | 3 bytes | 0x000001
|
| Stream id | 1 byte | Examples: Audio streams 0xB8, Video streams 0xB9
|
| PES Packet length | 2 bytes | Can be zero as in not specified.
|
| Optional PES header | variable length |
|
| Data |
| |
| Padding bytes |
|
See also
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