This document provides information about digital television broadcast standards and protocols. It discusses topics like the PID (packet identifier), PAT (program association table), PMT (program map table), EIT (event information table), and MPEG-2 transport stream specifications. Code snippets and technical details are included about how different data elements like events, descriptors, and text characters are structured and encoded.

1. TV
@youzaka

2. • HDD 4.5TB
•
cron
• ts

5. • 188 1
• 0x47
• 4
•

6. • EventInformationTable
•

7. • 4
• a … transport_error_indicator
b … payload_unit_start_indicator
c … transport_priority
d … transport_scrambling_control
e … adaptation_field_control
f … continuity_counter
sync_byte abc PID d e f
8bit 111 13bit 2 2 4bit
01000111000000010100000000010001

8. PID
•
0x00 PAT PMT PID
PAT PMT PID
0x11 SDT service_id
0x12 EIT
0x14 TDT

9. EIT
• 47 40 12 1f 00 61 f0 48 00 a3 c5 88
f8 40 11 00 04 88 61 03 5a da 1b 03
00 00 02 00 00 00 07 d6 05 11 00 a1
03 5a 03 5b da 1b 05 00 00 00 30 00
00 07 d6 05 11 00 a1 03 5b 03 5c da
1b 05 30 00 00 30 00 00 07 d6 05 11
00 a1 03 5c a1 ff 60 3f ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ..
ff ff ff ff ff ff ff ff ff ff ff ff

10. EIT
PID 0x12=EIT
• 47 40 12 1f
00 section_length service_id 0xa3=163=BS-TBS(3)→ SDT
pointer_field
61 f0 48 00 a3 c5 88 f8 40 11 00 04 88 61
03 5a da 1b 03 00 00 02 00 00 00 07
d6 05 11 00 a1 03 5a
event 03 5b da 1b 05 00 00 00 30 00 00 07
d6 05 11 00 a1 03 5b
03 5c da 1b 05 30 00 00 30 00 00 07
d6 05 11 00 a1 03 5c
a1 ff 60 3f CRC
ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff .. ff ff ff ff ff ff ff ff ff ff ff
ff
( 0xff )

11. event
• start time 0xda1b=2011-10-01 duration 0x020000 = 2:00:00
03 5a da 1b 03 00 00 02 00 00 00 07
d6 05 11 00 a1 03 5a descriptor_loop_length
tag 0xd6= descriptor_length
EventGroupDescriptor
03 5b da 1b 05 00 00 00 30 00 00 07
event
d6 05 11 00 a1 03 5b
03 5c da 1b 05 30 00 00 30 00 00 07
d6 05 11 00 a1 03 5c
event
service_id=0xa3=163(BS-TBS3) event_id=0x35a
service_id=0xa1=161(BS-TBS1) event_id=0x35a

12. tag 0x4d=
start time 0xda15=2011-09-25 duration 0x010000 = 1:00:00 ShortEventDescriptor
• 4e f1 1a 00 98 d1 01 01 40 10 00 04 01 4e
42 a2 da 15 17 00 00 01 00 00 00 ff 4d a9 6a 70 6e
31 42 67 32 7e 42 24 0e 21 21 0f 37 60 45 2a 1b 7c
event_name_ d3 d5 a9 f9 a2 d5 bf f9 21 21 fb 1b 7d aa 49 77 4f
char 24 cb 46 7e eb c8 49 77 3c 59 f2 d2 af 32 48 fc 73
35 5e ca 33 2c 43 4a ce bf e1 0e 89 37 38 8a 0f 3a
50 4a 6c cf 43 6c cb b7 ac df c4 ad 0e 32 0f 33 2c
d8 3e 3a eb fa 36 39 b9 ae c6 46 7e ec ca a4 1b 7c
text_char c8 a4 ec fd 49 77 4f 24 1b 7d ce 38 35 40 72 ac 32
30 33 30 cb a2 ea 45 72 4e 64 e1 b9 eb 36 39 3e 2e
0e 37 0f 44 5a ce 32 48 21 44 b3 ce 32 48 f2 fd 3e
22 cf c9 a6 61 34 e9 bb eb ce ab 0e 3f 50 0c f1 b3
00 6a 70 6e 1b 24 3b 0f 7a 50 54 02 22 ff d6 05 11
00 97 42 a2 c1 01 84 c4 0f f2 03 10 0f ff 5f 6a 70
6e 1b 24 3b 0f 7a 59 c7 25 00 07 40 0d 23 6e 6a 70
6e 01 40 f8 00 0f a0 00 bf 02 00 10 6a 70 6e 0d 0e
42 53 0f 44 2b 46 7c 1b 7c c7 f9 bf
d8 c1 cc 2a ff ff ff ff ff ff ff ff ff ff ff ff ...

13. text
• Arib ISO-2022-JP
→
42 67 32 7e 42 24 0e 21 21 0f 37 60 45 2a 1b 7c d3
! !
d5 a9 f9 a2 d5 bf f9 21 21 fb 1b 7d aa 49 77 4f 24
cb 46 7e eb c8 49 77 3c 59 f2 d2 af 32 48 fc

15. •
• PAT PMT PID
• PMT stream_type 0x06 PID
• PID
SynchronizedPacketizedElementaryStream
data_unit

16. …

17. •
•

18. •
• Windows dll

19. • github: https://github.com/youzaka/pytv