[linux-dvb] CI problems with Twinhan VP-3040 (DTT-CI)

Henrik Sjoberg henke at epact.se
Mon Oct 10 23:19:29 CEST 2005


Great!

Just a question, is anyone currently working on libdvbsi (or any other
part of dvb-apps)? I would be glad to be able to contribute some by fixing
the streams code and any other part that may need some polishing.

Regards,
Henrik


> Henrik Sjoberg wrote:
>
>>Thanks for clarifying for me.
>>
>>I looked a bit more into the specs and the code in dvb-apps. I have found
>>some problems in the dvbsi lib (mainly descriptor.c) which cause the
>>stream not to be parsed correctly. After some corrections, my ca_zap
>> looks
>>like this:
>>
>>[root at evermeet dvb-apps]# util/ca_zap/ca_zap -c ~/.tzap/channels.conf -n
>>TV3 -t ter
>>Using Adpater=[/dev/dvb/adapter0]
>> Frontend=[/dev/dvb/adapter0/frontend0]
>> Demux=[/dev/dvb/adapter0/demux0]
>> Slot=[/dev/dvb/adapter0/ca0]
>>Parsing /root/.tzap/channels.conf
>>Terrestrial frontend
>>Channel TV3
>>parse_ter_channel_list: Channel=[TV3], Frequency=[786000000],
>>Video=[1039], Audio=[1038], Service=[1030]
>>Service ID=[1030]
>>parse_pat: ----------------->parse PAT section
>>parse_pat: PAT => Section Length=[73], TS ID=[1110]
>>parse_si: PMT PID = [1030]
>>parse_si: PAT: Close Demux /dev/dvb/adapter0/demux0
>>parse_pmt: PMT Words=[ 02 b0 73 04 06 c9 00 00 e4 0f f0 00 05 ef a4 f0 12
>>0f 04 4f 54 56 00 90 01 86 fe 04 45 50 47 32 fd 01 20 02 e4 0f f0 11 09
>> 0f
>>05 00 e0 32 10 01 01 13 01 20 14 03 02 05 08 03 e4 0e f0 11 09 0f 05 00
>> e0
>>32 10 01 01 13 01 20 14 03 02 05 08 06 e4 0c f0 07 56 05 73 77 65 09 00
>> 05
>>e4 08 f0 12 0f 04 4f 54 56 00 90 01 86 fe 04 31 30 33 32 fd 01 80 e1 df
>> dc
>>cc ]
>>
>>parse_pmt: ----------->parse PMT section, PMT PID=[1030], bytes=[118]
>>parse_pmt_header: Table ID=[2], Section Length=[115], Program
>>Number=[1030], Section Number=[0], PCR PID=[1039], Program info
>> length=[0]
>>parse_pmt: Program info length=[0]
>>
>>        parse_streams: Elements=[ 05 ef a4 f0 12 0f 04 4f 54 56 00 90 01
>>86 fe 04 45 50 47 32 fd 01 20]
>>        parse_streams: Stream=[0], Stream Type=[5], Elementary
>> PID=[4004],
>>ES info length=[18]
>>
>>        parse_streams: Elements=[ 02 e4 0f f0 11 09 0f 05 00 e0 32 10 01
>>01 13 01 20 14 03 02 05 08]
>>        parse_streams: Stream=[1], Stream Type=[2], Elementary
>> PID=[1039],
>>ES info length=[17]
>>INFO:: Parsing descriptor: parse_ca_descriptor, Tag=[09], Length=[15]
>>parse_ca_descriptor: Tag=[09], Length=[0f], CA System=[500], CA PID=[32]
>>parse_ca_descriptor: CA Private Data=[ 10 01 01 13 01 20 14 03 02 05 08 ]
>>parse_ca_descriptor: Pos=[57]
>>
>>        parse_streams: Elements=[ 03 e4 0e f0 11 09 0f 05 00 e0 32 10 01
>>01 13 01 20 14 03 02 05 08]
>>        parse_streams: Stream=[2], Stream Type=[3], Elementary
>> PID=[1038],
>>ES info length=[17]
>>INFO:: Parsing descriptor: parse_ca_descriptor, Tag=[09], Length=[15]
>>parse_ca_descriptor: Tag=[09], Length=[0f], CA System=[500], CA PID=[32]
>>parse_ca_descriptor: CA Private Data=[ 10 01 01 13 01 20 14 03 02 05 08 ]
>>parse_ca_descriptor: Pos=[79]
>>
>>        parse_streams: Elements=[ 06 e4 0c f0 07 56 05 73 77 65 09 00]
>>        parse_streams: Stream=[3], Stream Type=[6], Elementary
>> PID=[1036],
>>ES info length=[7]
>>
>>        parse_streams: Elements=[ 05 e4 08 f0 12 0f 04 4f 54 56 00 90 01
>>86 fe 04 31 30 33 32 fd 01 80]
>>        parse_streams: Stream=[4], Stream Type=[5], Elementary
>> PID=[1032],
>>ES info length=[18]
>>
>>copy_en50221_pmt_object: Copying EN50221 Header
>>copy_en50221_pmt_object: Program Number=[1030], Program info length=[0]
>>copy_en50221_pmt_object: Program level descriptor count=[0]
>>copy_en50221_stream_object: Stream Type=[5], Elementary PID=[4004], ES
>>length=[18], Number of descriptors=[0]
>>copy_en50221_stream_object: Stream Type=[2], Elementary PID=[1039], ES
>>length=[17], Number of descriptors=[0]
>>copy_en50221_stream_object: Stream Type=[3], Elementary PID=[1038], ES
>>length=[17], Number of descriptors=[0]
>>copy_en50221_stream_object: Stream Type=[6], Elementary PID=[1036], ES
>>length=[7], Number of descriptors=[0]
>>copy_en50221_stream_object: Stream Type=[5], Elementary PID=[1032], ES
>>length=[18], Number of descriptors=[0]
>>do_en50221_pmt_object: CA PMT List Management=[03]
>>set_pmt_command: Setting PMT Command
>>do_en50221_pmt_object: Object length=[248], Total length=[31]
>>asn_1_encode: Length=[31]
>>asn_1_encode: length indicator=[1f]
>>do_en50221_pmt_object: ASN.1 words=[1], Length Array=[  31 ]
>>en50221_encode_header: CA PMT List Mgmt=[3], Program Number=[1030],
>>Program info length=[0]
>>write_en50221_pmt_object: EN50221 header encoded
>>en50221_encode_streams: Stream type=[05], ES PID=[fa4], ES Info
>> length=[12]
>>en50221_encode_streams: Stream type=[02], ES PID=[40f], ES Info
>> length=[11]
>>en50221_encode_streams: Stream type=[03], ES PID=[40e], ES Info
>> length=[11]
>>en50221_encode_streams: Stream type=[06], ES PID=[40c], ES Info
>> length=[07]
>>en50221_encode_streams: Stream type=[05], ES PID=[408], ES Info
>> length=[12]
>>debug_message: CA MESSAGE=[ 9f 80 32 1f 03 04 06 d1 10 00 05 ef a4 f0 00
>>02 e4 0f f0 00 03 e4 0e f0 00 06 e4 0c f0 00 05 e4 08 f0 00  ]
>>
>>this looks much better. However, the CA descriptors (that are actually
>>found now) still can't be seen in the ca_pmt so there is probably still
>>some problems left.
>>Have to keep digging...
>>
>>
> Yep, it looks better.. Only the CA descriptors should be used to compose
> the CA_PMT message, the rest of the descriptors should be filtered out.
> and once you have it composed, you should copy the descriptors from
> stream level to program level.
>
>
> Manu
>
>
>
>





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