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Background Info
Marc edited this page Nov 9, 2022
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TS Header: Bytes |00 |01 02|03 | +-------+-------+------------+ | Sync | PID | Continuity | | 0x47 | 1) | counter 2) | +-------+-------+------------+ 1) Bit 7 - Transport error indicator 6 - Payload unit start indicator 5 - Transport priority 4 - PID (msb) 3 - PID 2 - PID 1 - PID 0 - PID 7 - PID : 0 - PID (lsb) 2) Bit 7 - Transport scrambling control 6 - Transport scrambling control 5 - Adaptation field control 4 - Adaptation field control 3 - Continuity counter 2 - Continuity counter 1 - Continuity counter 0 - Continuity counter Transport scrambling control: 00 - Not scrambled 01 - User-defined 10 - User-defined 10 - User-defined Transport scrambling control: 00 - Reserved 01 - No adaptation field | Payload 10 - Adaptation field | No payload 10 - Adaptation field | Payload PAT/PMT: Table Id: 0x00 - PAT 0x02 - PMT PAT: Bytes |00 03|04 |05 |06 07|08 09|10 |11 |12 |13 | 4 bytes | +--+--+--+--+---+-------+--------+-----------+-----+---------+--------+------+---------+ | Header | P | Table | Length | Transport | Ver | section | last | N | CRC | | | 1)| Id | 2) | stream ID | 3) | number | sec nr | loop | | +-----------+---+-------+--------+-----------+-----+---------+--------+------+---------+ / / /----------------------------------------------------------/ / / /---------------------/ / / |13 14|15 16|17 18|19 20| +---------+---------+---------+------------+---... | prg nr: | Network | prg nr: | program map| | 0000 | PID | i | PID of i | +---------+---------+---------+------------+---... 1) P = Pointer field According to the ITU H.222.0 (05/06) section 2.4.4.2: When at least one section begins in a given Transport Stream packet, then the payload_unit_start_indicator (refer to 2.4.3.2) shall be set to '1' and the first byte of the payload of that Transport Stream packet shall contain the pointer. When no section begins in a given Transport Stream packet, then the payload_unit_start_indicator shall be set to '0' and no pointer shall be sent in the payload of that packet. 2) Bit 7 - Section syntax ind. 6 - '0' 5 - don't care 4 - don't care 3 - section length (msb) 2 - section length 1 - section length 0 - section length 7 - section length : 0 - section length (lsb) 3) Bit 7 - don't care 6 - don't care 5 - version number (msb) 4 - version number 3 - version number 2 - version number 1 - version number (lsb) 0 - Current Next Indicator PMT: Bytes |00 03|04 |05 |06 07|08 09|10 |11 |12 |13 14|15 16|17 | | 4 bytes | +--+--+--+--+---+-------+---------+---------+-----+---------+--------+------+-----------+------+------+---------+ | Header | P | Table | Section | Program | Ver | section | last | PCR | Prog Info | Info | | CRC | | | 1)| Id | Length | Number | | number | sec nr | PID | Length | | | | +-----------+---+-------+---------+---------+-----+---------+--------+------+-----------+------+------+---------+ / / /-----------------------------------------------------------------------------------/ / / /---------------------------------------------/ / / |00 |01 02|03 04|05 20| +--------+------------+---------+------------+---... | Stream | Elementary | ES info | | | Type | PID | Length | | +--------+------------+---------+------------+---... 05 = Table ID 06-07 = Section Syntax Indicator | '0' | res | res | Section Length 12Bits 08-09 = program_number 10 = res | res | Version Number 5Bits | Current Next Indicator 11 = Section Number (0x00) 12 = Last Section Number (0x00) 13-14 = res | res | res | PCR_PID 13Bits 15-16 = res | res | res | res | Program Info Length 12Bits 17-.. = Program Info 00 = stream type 01-02 = res | res | res | Elementary PID 13Bits 03-04 = res | res | res | res | ES-Info Length 12Bits
SatPI an SAT>IP server for linux (c) 2014 - 2024 Marc Postema