[mythtv] Some DVB remarks

Rudy Zijlstra mythtv at edsons.demon.nl
Sat Sep 24 16:50:34 UTC 2005

Daniel Kristjansson wrote:

>On Sat, 2005-09-24 at 14:03 +0200, Rudy Zijlstra wrote:
>>I've last night upgraded my test DVB-C system to svn current.
>>I am in the Netherlands, which is DVB country. No ATSC to be found for 
>>thousends of miles around...
>>2005-09-25 10:29:22.851 desired_program(20701) pid(0xdd0)
>>2005-09-25 10:29:22.852 pmt_pid(0xdd0)
>>2005-09-25 10:29:22.854 PAT for output stream
>>2005-09-25 10:29:22.855 Program Association Table
>> PSIP prefix(0x0) tableID(0x0) length(13) extension(0xcf)
>>      version(25) current(1) section(0) last_section(0)
>>         tsid: 207
>> programCount: 1
>>  program number 1 has PID 0x dd0   data  0x0 0x1 0x237 0x208
>>2005-09-25 10:29:22.856 DVBSM(0)::AddPIDFilter(0xdd0):
>>2005-09-25 10:29:22.915 PSIP packet has Adaptation Field Control, not 
>>ATSC compiant
>>2005-09-25 10:29:23.088 DummyRec: Restart! Frames seen 220
>>2005-09-25 10:29:23.117 PSIP packet has Adaptation Field Control, not 
>>ATSC compiant
>>2005-09-25 10:29:23.320 PSIP packet has Adaptation Field Control, not 
>>ATSC compiant
>>When it starts complaining about "not ATSC compliant" i can wait for 
>>minutes (i've let it go on in this for over 10 minutes) without getting 
>>video displayed.
>The "PSIP packet has..." is not related to the problem, it looks
>like the signal monitor finds what it is looking for. But it also
>looks like it is kept running too long, it has to be shut down
>before DVB recording is started.
>Can you try the latest tuning patch here:
>   http://svn.mythtv.org/trac/ticket/339
>Those Scanning problems are best left to someone in DVB land, this
>is the scanning logic that works in England and Germany. But if the
>frequency was messed up, then it may be your drivers, there was a
>post a couple days ago about a fix for one of the DVB cards that
>was returning the wrong frequency.
>-- Daniel
England has DVB-C, DVB-S and DVB-T (most known for)
Germany has DVB-C, DVB-S and some DVB-T. Germany most known for DVB-S.
Netherlands has DVB-C, DVB-S and some DVB-T (being extended)
France is starting (big) with DVB-T, has some DVB-C and receives DVB-S
Nordic has all three
Belgium has all three (limited on DVB-T)
Italy does not have DVB-C, but does have extensive DVB-T and DVB-S.

USA has pretty extensive DVB-S, and ATSC for terrestrial. Some DVB-C can 
be found as well.

patch 6 improved tuning time rather impressively. Still trouble tuning 
on any of the channels in that TS though.
What type of info can i provide to help?

I also checked the FE info using dvbsnoop -s feinfo, and the frequency 
is correctly reported. Also, this would not account for the presence of 
a series of TS with no valid symbolrate.

Thanks for your effort,


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