[mythtv-users] EIT (DVB-S) data problems

Christian CvB at kruemel.org
Sat Dec 19 08:24:04 UTC 2009

Thanks for your response, Nick.

> Some initial suggestions:
> i) turn off the 'useonairguide' flag for those channels you don't want
> data for

I did that. useonairguide is only set for 15 out of the 559 channels in
the database here.

> ii) check the EIT scanning timeouts in mythtv-setup

EIT Transport Timeout is set to 5 mins (was the default setting). "Cross
Source EIT" is enabled, and "Backend idle before EIT Crawl" is set to 60
secs. Signal timeout is set to 7,000 ms, tuning timeout to 10,000 ms. "Use
quick tuning" is set to "Never".

Would you suggest to change any of these, and if so, to which setting?

> iii) run the backend with extra 'eit,siparser,channel' verbose logging
> to highlight any potential problems

Ok, I have enabled this. I am not sure what to make of the log, though.
There is quite some EIT data in there now, lots for channels for which EIT
data shall not be used.

I have, e.g., a lot of these (for various shows, of course):

2009-12-19 09:00:55.887 GM : LIVING GOSPEL - Bibel TV new best match
LIVING GOSPEL - Bibel TV with score 11000

This specific channel is set to not to use EIT guide, but it's clear that
data will be received. So I guess these messages are ok.

I also have a lot of these:

2009-12-19 09:02:05.491 PESPacket: Failed CRC check 0x656d2046 !=
0xab7bb2dd for StreamID = 0x60
2009-12-19 09:02:05.493 Discarding broken PES packet
2009-12-19 09:02:07.091 PESPacket: Failed CRC check 0x89768009 !=
0x173882e9 for StreamID = 0x60
2009-12-19 09:02:07.093 Discarding broken PES packet

Is this normal?

I also have this, by the way:

2009-12-19 08:58:47.801 Program #51 not found in PAT!
Program Association Table
 PSIP tableID(0x0) length(240) extension(0xf00)
      version(14) current(1) section(251) last_section(120)
         tsid: 3840
 programCount: 58
  program number 63488 has PID 0x 100   data  0xf8 0x 0 0x 1 0x 0
  program number 34168 has PID 0x  d9   data  0x85 0x78 0x60 0xd9
  program number 34492 has PID 0x12ff   data  0x86 0xbc 0xf2 0xff
  program number 20465 has PID 0x1b03   data  0x4f 0xf1 0x1b 0x 3
  program number  1781 has PID 0x   1   data  0x 6 0xf5 0x 0 0x 1
  program number     7 has PID 0x  85   data  0x 0 0x 7 0x 0 0x85
  program number   335 has PID 0x177b   data  0x 1 0x4f 0xf7 0x7b
  program number 55184 has PID 0x 730   data  0xd7 0x90 0x 7 0x30
  program number 33024 has PID 0x d1a   data  0x81 0x 0 0x4d 0x1a
  program number 17477 has PID 0x1515   data  0x44 0x45 0x55 0x15
  program number 21608 has PID 0x 520   data  0x54 0x68 0x65 0x20
  program number 22369 has PID 0x1265   data  0x57 0x61 0x72 0x65
  program number 26735 has PID 0x1573   data  0x68 0x6f 0x75 0x73
  program number 25888 has PID 0x1072   data  0x65 0x20 0x50 0x72
  program number 28522 has PID 0x 563   data  0x6f 0x6a 0x65 0x63
  program number 29696 has PID 0x ec6   data  0x74 0x 0 0x4e 0xc6
  also contains 1 + 41 dummy programs

2009-12-19 08:59:06.283 Program #51 not found in PAT!
Program Association Table
 PSIP tableID(0x0) length(0) extension(0x344)
      version(2) current(1) section(85) last_section(68)
         tsid: 836
 programCount: 0

2009-12-19 08:59:06.284 ProcessPAT: Program not found in PAT.
			Rescan your transports.
2009-12-19 08:59:06.286 No program found in PAT. This recording will not
play in MythTV.
2009-12-19 08:59:06.287 Desired program #51 not found in PAT.
			Can Not create single program PAT.

I see "Rescan your transports" - I just wonder where this message comes
from. There is no program (neither chanid nor channum) 51 in my database.
Why is mythtv looking for this?

> iv) check your database health with optimize_mythdb.pl

This is run nightly.

> v) do a full rescan to ensure multiplex/channel tuning information is
> accurate

Which approach would you suggest for rescanning? As I have DVB-S here,
there are a couple of thousand channels to be scanned (and set to
invisible and not to use EIT data, if a new configuration would be
required). I'd like to keep, of course, recording schedules etc. in a
format which will still be current after a rescan.


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