Mailing List Archive

How to setup Mythtv when Frequency information is unknown with PVR 350?
Should PVR 350/IVTV tools be able to automatically scan available channels and get the frequencies? If so, what are the commands? Any TV can automatically tune channels.

Here are the research results from studying the lists.
(1) A member of this list in Singapore used #scantv -a -output file, but without result.

(2) xawtv does not work with PVR 350

(3) china-bcast in Mythtv's frequency.c greatly **conflicts** with what's in Video::Frequencies. Only the first frequencies of the first 5 channels match, and Video::Frequencies have channels like A1...,B1 which are not in mythtv's frequency.c. Would this cause problem? Does this mean mythtv is not up to date with IVTV?

(4) china-bcast is among options in mythtv. But I'm going to use local cable. Do I still use china-bcast?

(5) can callsign be safely ignored in channel table(e.g, use fake names)? I have not heard about callsign in china and do not understand their role in tuning/changing channels in mythtv.

(6) even after finding available frequency information from tools, there are still things that are unclear. Do I put the frequency information back into frequency.c and recompile it?

Thanks a lot for your help!

Ying
Re: How to setup Mythtv when Frequency information is unknown with PVR 350? [ In reply to ]
Op zaterdag 8 mei 2004 01:41, schreef Ying Su:
> Should PVR 350/IVTV tools be able to automatically scan available
> channels and get the frequencies? If so, what are the commands? Any TV
> can automatically tune channels.

Hmm, you could study the MythTV sourcecode on how it tunes channels on the
PVRs, and make a little program (possibly with help from the XawTV 'scantv'
program) that scans all frequencies. On the other hand there might be such a
program already available, maybe people on the ivtv mailinglist know more.

You could probably also look them up on your TV set :-)

If you have found the MHz value you need to calculate the the "frequency" with
help from some frequencies.c file found in the MythTV source. There is a
patch for MythTV to accept MHz values, but it never got applied to CVS...

Henk Poley <><
_______________________________________________
mythtv-users mailing list
mythtv-users@mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: How to setup Mythtv when Frequency information is unknown with PVR 350? [ In reply to ]
>
> If you have found the MHz value you need to calculate the the "frequency" with
> help from some frequencies.c file found in the MythTV source. There is a
> patch for MythTV to accept MHz values, but it never got applied to CVS...
>
> Henk Poley <><

that patch actually did get applied but I think you have to manually
change the freqid field in the channel table from varchar(5) to
varchar(6) to make them fit. But it works and I'm using it here.


----------------------------------------------------------------------------
Changes committed by ijr on Sat Mar 27 05:54:20 2004

Modified Files:
in mythtv/libs/libavcodec:
viaslice.c
in mythtv/libs/libmyth:
audiooutputalsa.cpp mythdialogs.cpp
in mythtv/libs/libmythtv:
NuppelVideoPlayer.cpp NuppelVideoPlayer.h
NuppelVideoRecorder.cpp channel.cpp channel.h dvbchannel.cpp
tv_play.cpp tv_play.h tv_rec.h videoout_ivtv.cpp
in mythtv/setup:
main.cpp
Log Message:
Patches:
- John Harvey's fix for the cursor + offsets on Qt/E 3.3.1
- Paul Koster's patch to allow the storage of actual frequency values
in the channel table.
- Drew Whittle's patch to clear the DVB tables as well with the startup
setup questions.
- Gregorio Gervasio's patch to add CC options to the OSD menu.
- 'two small fixes' patches from mian.
- cle266 matrix copying table fix from Kenneth Aafloy.

----------------------------------------------------------------------------