[linux-dvb] Problems with ca_zap

Allan Stirling Dibblahdvb0042 at pendor.org
Thu Jun 23 23:29:40 CEST 2005


Allan Stirling wrote:

> dvbsnoop gives me the following:
> ------------------------------------------------------------
> SECT-Packet: 00000001   PID: 0 (0x0000), Length: 44 (0x002c)
> Time received: Thu 2005-06-23  22:20:09.035
> ------------------------------------------------------------
>  0000:  00 b0 29 07 ee e3 00 00  00 00 e0 10 11 39 e1 01   
> ..)..........9..
>  0010:  11 fa e1 07 11 fb e1 09  12 5f e1 04 12 c2 e1 0c   
> ........._......
>  0020:  12 c9 e1 0b 13 2a e1 0a  24 a9 24 84               .....*..$.$.
>
> PID:  0 (0x0000)  [= assigned for: ISO 13818-1 Program Association 
> Table (PAT)]
> Guess table from table id...
> PAT-decoding....
> Table_ID: 0 (0x00)  [= Program Association Table (PAT)]
> section_syntax_indicator: 1 (0x01)
> (fixed): 0 (0x00)
> reserved_1: 3 (0x03)
> Section_length: 41 (0x0029)
> Transport_Stream_ID: 2030 (0x07ee)
> reserved_2: 3 (0x03)
> Version_number: 17 (0x11)
> current_next_indicator: 1 (0x01)  [= valid now]
> Section_number: 0 (0x00)
> Last_Section_number: 0 (0x00)
>
>    Program_number: 0 (0x0000)
>    reserved: 7 (0x07)
>    Network_PID: 16 (0x0010)
>
>    Program_number: 4409 (0x1139)
>    reserved: 7 (0x07)
>    Program_map_PID: 257 (0x0101)
>
>    Program_number: 4602 (0x11fa)
>    reserved: 7 (0x07)
>    Program_map_PID: 263 (0x0107)
>
>    Program_number: 4603 (0x11fb)
>    reserved: 7 (0x07)
>    Program_map_PID: 265 (0x0109)
>
>    Program_number: 4703 (0x125f)
>    reserved: 7 (0x07)
>    Program_map_PID: 260 (0x0104)
>
>    Program_number: 4802 (0x12c2)
>    reserved: 7 (0x07)
>    Program_map_PID: 268 (0x010c)
>
>    Program_number: 4809 (0x12c9)
>    reserved: 7 (0x07)
>    Program_map_PID: 267 (0x010b)
>
>    Program_number: 4906 (0x132a)
>    reserved: 7 (0x07)
>    Program_map_PID: 266 (0x010a)
>
> Where you can clearly see that 4703 is listed, with a PID of 260. I 
> think there must be something wrong in the PAT parsing, since I get 
> the following with a slightly modified ca_zap:
>
> parse_pat: PAT => Section Length=[41], TS ID=[12270]
> service_id: 4703
> program_number: 176    PID: 2311
> program_number: 61155  PID: 0
> program_number: 12288  PID: 16
> program_number: 65337  PID: 7937
> program_number: 65530  PID: 7943
> program_number: 4603   PID: 265
> program_number: 15967  PID: 260
> program_number: 65474  PID: 7948
> program_number: 4809   PID: 267
> program_number: 4906   PID: 266
>
> As you can see, some of the program_numbers as well as some of the 
> PIDs are correct, but some are not. This is repeatable between runs.
>
> The TS ID is also different. I'm just about to try hardcoding the PID 
> as Manu originally suggested.
>
Okay. That gets me more output, but I don't think it's good.

parse_sat_channel_list: Channel=[Sky One], Frequency=[12285], 
Satellite=[0], Symbol Rate=[27500], Video=[513], Audio=[641], Service=[4703]
Service ID=[4703]
parse_pat: ----------------->parse PAT section
parse_pat: PAT => Section Length=[41], TS ID=[12270]
service_id: 4703
program_number: 176    PID: 2311
program_number: 61155  PID: 0
program_number: 12288  PID: 16
program_number: 65337  PID: 7937
program_number: 65530  PID: 7943
program_number: 4603   PID: 265
program_number: 15967  PID: 260
parse_si: PMT PID = [260]
program_number: 65474  PID: 7948
program_number: 4809   PID: 267
program_number: 4906   PID: 266
parse_si: PAT: Close Demux /dev/dvb/adapter3/demux0
parse_pmt: PMT Words=[ 02 b2 f5 12 5f c9 00 00 ff fe f0 13 0c 04 80 b4 
81 68 0e 03 c5 df bb 10 06 c5 df bb c0 08 00 02 e2 01 f0 1c 02 03 1a 48 
5f 09 04 09 60 e5 00 09 04 09 61 e5 00 52 01 01 0e 03 c0 4f f0 06 01 02 
04 e2 81 f0 1d 03 01 67 09 04 09 60 e5 00 09 04 09 61 e5 00 0a 04 65 6e 
67 00 52 01 81 0e 03 c0 02 0a 04 e2 95 f0 1d 03 01 67 09 04 09 60 e5 00 
09 04 09 61 e5 00 0a 04 4e 41 52 00 52 01 95 0e 03 c0 02 0a 06 e2 40 f0 
0f 56 05 65 6e 67 09 00 52 01 40 0e 03 c0 01 78 06 e2 41 f0 0f 56 05 65 
6e 67 10 88 52 01 41 0e 03 c0 00 bc 05 e9 80 f0 17 0e 03 c0 46 d8 0f 04 
4f 54 56 00 90 01 90 fe 04 45 54 30 31 52 01 5a 05 e9 81 f0 17 0e 03 c0 
46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 45 54 30 32 52 01 5b 05 e9 82 f0 
17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 45 54 30 33 52 01 5c 
05 e9 83 f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 57 54 53 
33 52 01 0f 05 e9 84 f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 
04 45 54 30 34 52 01 5d 05 e9 85 f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 
90 01 90 fe 04 45 54 30 35 52 01 5e 05 e9 86 f0 17 0e 03 c0 46 d8 0f 04 
4f 54 56 00 90 01 90 fe 04 45 54 30 36 52 01 5f 05 e9 87 f0 17 0e 03 c0 
46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 45 54 30 37 52 01 60 05 e9 88 f0 
17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 45 54 30 38 52 01 61 
05 e9 89 f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 45 54 30 
39 52 01 62 05 e9 8a f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 
04 57 49 41 31 52 01 7e 05 e9 8b f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 
90 01 90 fe 04 57 49 41 32 52 01 7f 05 e9 8c f0 17 0e 03 c0 46 d8 0f 04 
4f 54 56 00 90 01 90 fe 04 57 49 41 33 52 01 80 05 e9 8d f0 17 0e 03 c0 
46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 57 54 56 43 52 01 c9 05 e9 8e f0 
17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 57 54 56 30 52 01 ca 
05 ec 01 f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 54 58 54 
00 52 01 3a 05 ec 02 f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 90 01 90 fe 
04 54 58 54 01 52 01 3b 05 ec 03 f0 17 0e 03 c0 46 d8 0f 04 4f 54 56 00 
90 01 90 fe 04 54 58 54 02 52 01 3c 05 ec 04 f0 17 0e 03 c0 46 d8 0f 04 
4f 54 56 00 90 01 90 fe 04 54 58 54 03 52 01 3d 05 e9 93 f0 17 0e 03 c0 
46 d8 0f 04 4f 54 56 00 90 01 90 fe 04 49 53 4d 00 52 01 f7 05 e4 06 f0 
13 5f 04 4f 54 56 00 90 01 9d fe 04 54 47 54 00 66 02 01 07 5c fc 4f 1d ]

parse_pmt: ----------->parse PMT section, PMT PID=[260], bytes=[760]
parse_pmt_header: Table ID=[2], Section Length=[757], Program 
Number=[4703], Section Number=[0], PCR PID=[8190], Program info length=[19]
parse_pmt: Program info length=[19]
parse_pmt: Count=[16], Position=[16], Program descriptor count=[19]
parse_pmt: Count=[137], Position=[120], Program descriptor count=[19]

        parse_streams: Elements=[ 4e 41 52 00 52 01 95 0e 03 c0 02 0a 06 
e2 40 f0 0f 56 05 65 6e 67 09 00 52 01 40 0e 03 c0 01 78 06 e2 41 f0 0f 
56 05 65 6e 67 10 88 52 01 41 0e 03 c0 00 bc 05 e9 80 f0 17 0e 03 c0 46 
d8 0f 04 4f 54 56 00 90 01 90 fe 04 45 54 30 31 52 01 5a 05 e9 81 f0 17 
0e 03]
        parse_streams: Stream=[0], Stream Type=[78], Elementary 
PID=[338], ES info length=[82]

Cheers,

Allan.




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