Hi,
I am struggling with my Twinhan VP-3040 to get the CI working. Everything
looks fine up to the point where I actually want to tell the CAM to
decrypt a channel.
I'm no EN50221-master, but I believe that the problem is that in the
ca_pmt, both program_info_length and ES_info_length fields are zero,
meaning that there is no ca_pmt_cmd_id in the message. Hence, there is
nothing telling the CAM to start decripting.
Could someone with a bit more insight in EN50221 look at my logs and tell
me if I'm on the right track and a bit more on how my ca_pmt mesage should
look.
Ok, let's move on to some logs
First, we start out with ca_zap:
[root@evermeet ~]# /usr/src/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 lengt
h=[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]
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]
do_en50221_pmt_object: CA PMT List Management=[03]
set_pmt_command: Setting PMT Command
do_en50221_pmt_object: Object length=[88], Total length=[11]
asn_1_encode: Length=[11]
asn_1_encode: length indicator=[0b]
do_en50221_pmt_object: ASN.1 words=[1], Length Array=[ 11 ]
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]
debug_message: CA MESSAGE=[ 9f 80 32 0b 03 04 06 d1 10 00 05 ef a4 f0 00 ]
decoding the message gives:
9f 80 32 - ca_pmt
0b - length
03 - select 'only'
04 06 - Program # (1030)
d1 - Reserved+Version=8,current_next_ind=1
10 00 - reserved+program_info_length=0
05 - stream_type=5
ef a4 - Reserved+Elementary PID=4004
f0 00 - Reserved+ES_info_length=0
>From what I can tell from ca_zap, the program_info_length is actually
zero, while the ES_info_length is not. However, since the number of
descriptors is zero, ES_info_length is set to zero too. From the dvbsnoop
log (see below) it seems that there ARE ca descriptors in the ES_info.
Could someone please help me understand this. Am I right when I believe
that the problem is that there is no ca_pmt_cmd_id in the message? If so,
why is there not? Is it a problem in en50221_encode.c?
Regards,
Henrik
ps If more logs are needed:
dvbsnoop on the pid:
[root@evermeet src]# dvbsnoop -nohexdumpbuffer -n 1 1030 | less
dvbsnoop V1.4.00 -- http://dvbsnoop.sourceforge.net/
------------------------------------------------------------
SECT-Packet: 00000001 PID: 1030 (0x0406), Length: 118 (0x0076)
Time received: Mon 2005-10-10 15:59:49.695
------------------------------------------------------------
PID: 1030 (0x0406)
Guess table from table id...
PMT-decoding....
Table_ID: 2 (0x02) [= Program Map Table (PMT)]
section_syntax_indicator: 1 (0x01)
(fixed '0'): 0 (0x00)
reserved_1: 3 (0x03)
Section_length: 115 (0x0073)
Program_number: 1030 (0x0406)
reserved_2: 3 (0x03)
Version_number: 4 (0x04)
current_next_indicator: 1 (0x01) [= valid now]
Section_number: 0 (0x00)
Last_Section_number: 0 (0x00)
reserved_3: 7 (0x07)
PCR PID: 1039 (0x040f)
reserved_4: 15 (0x0f)
Program_info_length: 0 (0x0000)
Stream_type loop:
Stream_type: 5 (0x05) [= ITU-T Rec. H.222.0 | ISO/IEC 13818-1 private
sections]
reserved_1: 7 (0x07)
Elementary_PID: 4004 (0x0fa4)
reserved_2: 15 (0x0f)
ES_info_length: 18 (0x0012)
MPEG-DescriptorTag: 15 (0x0f) [=
private_data_indicator_descriptor]
Descriptor_length: 4 (0x04)
Descriptor-data:
0000: 4f 54 56 00
OTV.
DVB-DescriptorTag: 144 (0x90) [= User defined/ATSC reserved]
Descriptor_length: 1 (0x01)
Descriptor-data:
0000: 86 .
DVB-DescriptorTag: 254 (0xfe) [= User defined]
Descriptor_length: 4 (0x04)
Descriptor-data:
0000: 45 50 47 32
EPG2
DVB-DescriptorTag: 253 (0xfd) [= User defined]
Descriptor_length: 1 (0x01)
Descriptor-data:
0000: 20
Stream_type: 2 (0x02) [= ITU-T Rec. H.262 | ISO/IEC 13818-2 Video |
ISO/IEC 11172-2 constr. parameter video stream]
reserved_1: 7 (0x07)
Elementary_PID: 1039 (0x040f)
reserved_2: 15 (0x0f)
ES_info_length: 17 (0x0011)
MPEG-DescriptorTag: 9 (0x09) [= CA_descriptor]
Descriptor_length: 15 (0x0f)
CA_system_ID: 1280 (0x0500) [= France Telecom (Viaccess)]
reserved: 7 (0x07)
CA_PID: 50 (0x0032)
Private Data:
0000: 10 01 01 13 01 20 14 03 02 05 08
..... .....
Stream_type: 3 (0x03) [= ISO/IEC 11172 Audio]
reserved_1: 7 (0x07)
Elementary_PID: 1038 (0x040e)
reserved_2: 15 (0x0f)
ES_info_length: 17 (0x0011)
MPEG-DescriptorTag: 9 (0x09) [= CA_descriptor]
Descriptor_length: 15 (0x0f)
CA_system_ID: 1280 (0x0500) [= France Telecom (Viaccess)]
reserved: 7 (0x07)
CA_PID: 50 (0x0032)
Private Data:
0000: 10 01 01 13 01 20 14 03 02 05 08
..... .....
Stream_type: 6 (0x06) [= ITU-T Rec. H.222.0 | ISO/IEC 13818-1 PES
packets containing private data]
reserved_1: 7 (0x07)
Elementary_PID: 1036 (0x040c)
reserved_2: 15 (0x0f)
ES_info_length: 7 (0x0007)
DVB-DescriptorTag: 86 (0x56) [= teletext_descriptor]
Descriptor_length: 5 (0x05)
ISO639_language_code: swe
Teletext_type: 1 (0x01) [= initial teletext page]
Teletext_magazine_number: 1 (0x01)
Teletext_page_number: 0 (0x00)
Stream_type: 5 (0x05) [= ITU-T Rec. H.222.0 | ISO/IEC 13818-1 private
sections]
reserved_1: 7 (0x07)
Elementary_PID: 1032 (0x0408)
reserved_2: 15 (0x0f)
ES_info_length: 18 (0x0012)
MPEG-DescriptorTag: 15 (0x0f) [=
private_data_indicator_descriptor]
Descriptor_length: 4 (0x04)
Descriptor-data:
0000: 4f 54 56 00
OTV.
DVB-DescriptorTag: 144 (0x90) [= User defined/ATSC reserved]
Descriptor_length: 1 (0x01)
Descriptor-data:
0000: 86 .
DVB-DescriptorTag: 254 (0xfe) [= User defined]
Descriptor_length: 4 (0x04)
Descriptor-data:
0000: 31 30 33 32
1032
DVB-DescriptorTag: 253 (0xfd) [= User defined]
Descriptor_length: 1 (0x01)
Descriptor-data:
0000: 80 .
CRC: 3789544652 (0xe1dfdccc)
==========================================================
dmesg while ca_zap:ing:
Oct 6 08:35:48 evermeet kernel: dst_ca_open: Device opened [c0606f60]
Oct 6 08:35:48 evermeet kernel: dst_ca_ioctl: Sending message
Oct 6 08:35:48 evermeet kernel: ca_send_message:
Oct 6 08:35:48 evermeet kernel: ca_send_message: Command=[0x9f8032]
Oct 6 08:35:48 evermeet kernel:
Oct 6 08:35:48 evermeet kernel: ca_send_message: Command = SEND_CA_PMT
Oct 6 08:35:48 evermeet kernel: asn_1_decode: Length field=[0b]
Oct 6 08:35:48 evermeet kernel: asn_1_decode: Length=[0b]
Oct 6 08:35:48 evermeet kernel:
Oct 6 08:35:48 evermeet kernel: ca_set_pmt: CA Message length=[11]
Oct 6 08:35:48 evermeet kernel: String=[ 03 04 06 d1 10 00 05 ef a4 f0 00 ]
Oct 6 08:35:48 evermeet kernel: put_checksum: =========================
Checksum calculation ===========================
Oct 6 08:35:48 evermeet kernel: put_checksum: String Length=[0x12]
Oct 6 08:35:48 evermeet kernel: put_checksum: String=[
Oct 6 08:35:48 evermeet kernel: 12 40 03 00 03 0b 00 03 04 06 d1 10 00
05 ef a4 f0 00 ]
Oct 6 08:35:48 evermeet kernel: put_checksum: Sum=[d9]
Oct 6 08:35:48 evermeet kernel:
Oct 6 08:35:48 evermeet kernel: put_checksum: Checksum=[27]
Oct 6 08:35:48 evermeet kernel: put_checksum:
==========================================================================
Oct 6 08:35:48 evermeet kernel: String=[ 12 40 03 00 03 0b 00 03 04 06
d1 10 00 05 ef a4 f0 00 27 ]
Oct 6 08:35:48 evermeet kernel: dst_put_ci: Put Command
Oct 6 08:35:48 evermeet kernel: write_to_8820: DST-CI Command succes.
Oct 6 08:35:48 evermeet kernel: ca_send_message: -->CA_PMT Success !
Oct 6 08:35:48 evermeet kernel: dst_ca_release: Device closed.
ds
