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Packet Identifier of a [[ |
Packet Identifier of a [[MPEG-2 Transport Stream]] packet. |
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The PID is a 13-bit number that is used by the [[ |
The PID is a 13-bit number that is used by the [[MPEG-2 Multiplexer]] or [[MPEG-2 Demultiplexer]] to identify the Elementary Stream to which this TS Packet belongs. A [[MPEG-2 Transport Stream]] can thus contain up to 2^13 = 8192 multiplexed [[Elementary Stream|Elementary Streams]]. |
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Some PIDs are defined by the [[ |
Some PIDs are defined by the [[MPEG-2 Standard]] and the [[DVB Standards]] to be used for reserved purposes: |
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{| border="1" cellpadding="5" cellspacing="0" align="center" |
{| border="1" cellpadding="5" cellspacing="0" align="center" |
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! style="background:#efefef;" | 0x00 |
! style="background:#efefef;" | 0x00 |
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! [[PAT]] - [[Program Association Table]] |
! [[Program Association Table|PAT]] - [[Program Association Table]] |
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|- |
|- |
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! style="background:#efefef;" | 0x01 |
! style="background:#efefef;" | 0x01 |
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! [[CAT]] - [[Conditional Access Table]] |
! [[Conditional Access Table|CAT]] - [[Conditional Access Table]] |
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|- |
|- |
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! style="background:#efefef;" | 0x10 |
! style="background:#efefef;" | 0x10 |
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! [[NIT]] - [[Network Information Table]] |
! [[Network Information Table|NIT]] - [[Network Information Table]] |
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|- |
|- |
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! style="background:#efefef;" | 0x11 |
! style="background:#efefef;" | 0x11 |
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! [[SDT]] - [[Service Description Table]] |
! [[Service Description Table|SDT]] - [[Service Description Table]] |
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|- |
|- |
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! style="background:#efefef;" | 0x12 |
! style="background:#efefef;" | 0x12 |
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! [[EIT]] - [[Event Information Table]] |
! [[Event Information Table|EIT]] - [[Event Information Table]] |
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|- |
|- |
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! style="background:#efefef;" | 0x13 |
! style="background:#efefef;" | 0x13 |
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! [[RST]] - [[Running Status Table]] |
! [[Running Status Table|RST]] - [[Running Status Table]] |
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|- |
|- |
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! style="background:#efefef;" | 0x14 |
! style="background:#efefef;" | 0x14 |
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! [[TDT]] - [[Time and Date Table]] |
! [[Time and Date Table|TDT]] - [[Time and Date Table]] |
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== Links == |
== External Links == |
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* http://erg.abdn.ac.uk/research/future-net/digital-video/mpeg2-trans.html |
* http://erg.abdn.ac.uk/research/future-net/digital-video/mpeg2-trans.html |
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[[Category:Technology]] |
[[Category:Technology]] |
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[[Category:Shorthand]] |
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Latest revision as of 03:46, 16 January 2008
Packet Identifier of a MPEG-2 Transport Stream packet.
The PID is a 13-bit number that is used by the MPEG-2 Multiplexer or MPEG-2 Demultiplexer to identify the Elementary Stream to which this TS Packet belongs. A MPEG-2 Transport Stream can thus contain up to 2^13 = 8192 multiplexed Elementary Streams.
Some PIDs are defined by the MPEG-2 Standard and the DVB Standards to be used for reserved purposes:
| PID (hex) | Purpose |
|---|---|
| 0x00 | PAT - Program Association Table |
| 0x01 | CAT - Conditional Access Table |
| 0x10 | NIT - Network Information Table |
| 0x11 | SDT - Service Description Table |
| 0x12 | EIT - Event Information Table |
| 0x13 | RST - Running Status Table |
| 0x14 | TDT - Time and Date Table |