[mythtv-users] Re: DVB-S channel scan problem with 18.1, Astra 19.2, skystar2

Bob Honzik bobiko at gmail.com
Mon Sep 19 22:00:43 UTC 2005


Hi Jochen,

thank you very much for your response.

On 9/19/05, Jochen Kühner <jochen.kuehner at gmx.de> wrote:
> Hello,  i've 3 skystar cards in my pc and the scan worked, but i don't know
> wich version i used because it's 3 or 4 month away.
> 
> When you search for the channels, you have to give a starting frequency and
> and symbol rate:
> 
> Example: ARD 27500 28106, but you have to enter in myth: 27500000 28106000)
> 
I know how to start the scan process, but the problem is that it
doesn't work rigt, I guess. Transponders and particular channels are
found, but (probably) not inserted into the database correctly. Here
is an example of my mythconverg data:

channel table:

INSERT INTO channel (chanid, channum, freqid, sourceid, callsign,
name, icon, finetune, videofilters, xmltvid, recpriority, contrast,
brightness, colour, hue, tvformat, commfree, visible, outputfilters,
useonairguide, mplexid, serviceid, atscsrcid) VALUES
(1110,'28106',NULL,1,'Das Erste','Das
Erste','none',NULL,'','',0,32768,32768,32768,32768,'Default',0,1,'',1,50,28106,0);
INSERT INTO channel (chanid, channum, freqid, sourceid, callsign,
name, icon, finetune, videofilters, xmltvid, recpriority, contrast,
brightness, colour, hue, tvformat, commfree, visible, outputfilters,
useonairguide, mplexid, serviceid, atscsrcid) VALUES
(1111,'28107',NULL,1,'Bayerisches FS','Bayerisches
FS','none',NULL,'','',0,32768,32768,32768,32768,'Default',0,1,'',1,50,28107,0);
INSERT INTO channel (chanid, channum, freqid, sourceid, callsign,
name, icon, finetune, videofilters, xmltvid, recpriority, contrast,
brightness, colour, hue, tvformat, commfree, visible, outputfilters,
useonairguide, mplexid, serviceid, atscsrcid) VALUES
(1112,'28108',NULL,1,'hr-fernsehen','hr-fernsehen','none',NULL,'','',0,32768,32768,32768,32768,'Default',0,1,'',1,50,28108,0);
INSERT INTO channel (chanid, channum, freqid, sourceid, callsign,
name, icon, finetune, videofilters, xmltvid, recpriority, contrast,
brightness, colour, hue, tvformat, commfree, visible, outputfilters,
useonairguide, mplexid, serviceid, atscsrcid) VALUES
(1113,'28109',NULL,1,'arte','arte','none',NULL,'','',0,32768,32768,32768,32768,'Default',0,1,'',1,50,28109,0);

dtv_multiplex table (this multiplex corresponds to the channels listed above):

INSERT INTO dtv_multiplex (mplexid, sourceid, transportid, networkid,
frequency, inversion, symbolrate, fec, polarity, modulation,
bandwidth, lp_code_rate, transmission_mode, guard_interval, visible,
constellation, hierarchy, hp_code_rate, sistandard, serviceversion,
updatetimestamp) VALUES
(50,1,1101,1,11836500,'a',27500000,'3/4','h','qpsk','a','auto','a','auto',0,'auto','a','auto','dvb',17,20050917221523);

So far it looks OK. But, the dvb_pids table is empty! And this is a
problem, I think.
Could you please send me some sample of your tables? I mean channel,
dtv_multiplex and dvb_pids (and any other relevant table, if there is
any).

> The Dvb_channels table is no longer used!! The channels are in the normal
> channels table!!!

Well, this is a new information to me. It looks like the database
table formats are changing quite often... I found an mythconverg dump
in this mailing list, which used the dvb_channel. I was quite confused
by that.

When I run mythtv, I see only black screen and this on the command line:

bob at godzilla ~ $ mythtv
2005-09-19 23:51:11.618 New DB connection, total: 1
Total desktop width=1024, height=768, numscreens=1
2005-09-19 23:51:11.632 Using screen 0, 1024x768 at 0,0
2005-09-19 23:51:11.730 Switching to square mode (G.A.N.T.)
2005-09-19 23:51:13.336 New DB connection, total: 2
2005-09-19 23:51:13.429 Connecting to backend server: 127.0.0.1:6543
(try 1 of 5)
2005-09-19 23:51:13.470 Using protocol version 15
2005-09-19 23:51:13.588 Using protocol version 15
2005-09-19 23:51:18.959 taking too long to be allowed to read..
2005-09-19 23:51:23.961 taking too long to be allowed to read..
2005-09-19 23:51:28.962 taking too long to be allowed to read..
2005-09-19 23:51:28.962 Took more than 10 seconds to be allowed to
read, aborting.
Couldn't read file: rbuf://127.0.0.1:6543/tmp//ringbuf1.nuv
2005-09-19 23:51:28.997 Changing from None to WatchingLiveTV
2005-09-19 23:51:28.998 Decoder not alive, and trying to play..
2005-09-19 23:51:29.973 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-09-19 23:51:30.182 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-09-19 23:51:30.391 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-09-19 23:51:30.600 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-09-19 23:51:30.809 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-09-19 23:51:30.834 Changing from None to None
2005-09-19 23:51:31.018 RemoteFile::Read() failed in RingBuffer::safe_read().


Anyway I am glad to hear that the scanning was working with skystar
card (btw. do you have skystar2 or skystar1 cards?). I was afraid that
it is the driver issue (it looks like everybody in the mailing list is
using these PVR-XXX cards...).
I will probably try some older versions of mythtv, maybe the 18.1 and
the SVN snapshot has really broken DVB-S scan functionality.

Thank you.
Bob

> 
> Any further questions, ask (you can also do in german)
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org] Im Auftrag von Bob Honzik
> Gesendet: Sonntag, 18. September 2005 00:46
> An: mythtv-users at mythtv.org
> Betreff: [mythtv-users] DVB-S channel scan problem with 18.1, Astra
> 19.2,skystar2
> 
> Hi,
> 
> I just installed MythTV on my Gentoo desktop with skystar2 DVB-S card
> pointed to Astra 19.2E. The broadcast reception works fine with
> mplayer. But I have problems with channel scanning in mythtv. During
> the scan the channels and dtv_multiplex tables in mythconverg are
> filled, but dvb_channel and dvb_pids are empty. Following error
> message is shown on the command line:
> QMYSQLResult::data: column 3 out of range
> 
> I also tried the SVN snapshot with similar result (here the
> dvb_channel and dvb_pids tables are not present at all).
> I tried to use the import feature and the channels.conf file prepared
> with dvbscan, but it didn't work either - probably because of the
> incompatible format.
> 
> I have several questions now:
> 1) Does anybody have mythtv 0.18.1 + DVB-S card (skystar2?) with a
> working scan feature?
> 2) Does anybody know how to import channels.conf into mythtv?
> Apparently there are some switches that affect the file format...
> 3) Could somebody provide me with the current mythconverg database
> dump of the Astra 19.2E?
> 4) Is there any older version of mythtv able to scan channels with the
> skystar2 DVB-S card?
> 
> Thanks!
> Bob
> _______________________________________________
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> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 
>


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