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How to Tune ATSC...
Posted: 11 Oct 2009 00:11
by byron.formwalt
I have a file called channels.conf with the following line in it:
From a terminal in the same directory as this file, I am able to
successfully tune the channel by executing:
Can someone please illustrate for this example, how to use vlc from
the command line explicitly without specifying the channels.conf file?
For additional information, ref:
http://mailman.videolan.org/pipermail/v ... hread.html
Re: How to Tune ATSC... (SOLUTION)
Posted: 12 Oct 2009 08:12
by byron.formwalt
It took many hours of looking at and stepping through the source code to discover this solution.
Please, let me know if anyone finds this example helpful.
The following is an actual line from
channels.conf in ATSC
zap format:
We shall describe the line using the following generic format:
Code: Select all
MY_CHANNEL_NAME:nnnnnnnnn:8VSB:xx:yy:p
Using this convention, the proper command to use to launch VLC from the command line is as follows:
Code: Select all
% vlc dvb://frequency=nnnnnnnnn :dvb-adapter=0 :dvb-srate=0 :dvb-modulation=8VSB --program=p
For our specific example (channel KOAT-DT), the command to use for launching VLC is as follows:
Code: Select all
vlc dvb://frequency=177028615 :dvb-adapter=0 :dvb-srate=0 :dvb-modulation=8VSB --program=3
Hopefully, this example for programatically (command-line) tuning ATCS US digital broadcast will be useful to others.
Cheers,
Byron Formwalt
Re: How to Tune ATSC...
Posted: 08 Dec 2009 17:20
by wiwheelman
Thanks Byron! Definitely works for me. Have you uncovered the secret on how to record ATSC yet?
Re: How to Tune ATSC...
Posted: 09 Dec 2009 18:04
by westley52
Hi Bryon,
This is very helpful - THANKs! But, I am still left with the question on how to obtain a list of frequencies in a particular area - such as Charlotte. Any help along these lines would be much appreciated.
Thanks
Re: How to Tune ATSC...
Posted: 10 Dec 2009 19:33
by wiwheelman
Just use the scan utility. This is what I used to get the Milwaukee station list for my card.
mkdir ~/.azap
scan -vvv -a 0 /usr/share/dvb/atsc/us-ATSC-center-frequencies-8VSB -o zap -x -1 -A 1 > ~/.azap/channels.conf
After file was created did some manual editing for clean up.
Re: How to Tune ATSC...
Posted: 11 Dec 2009 21:34
by westley52
Yours is a very helpful post - if only I could use Linux for the scan. I made a rash decision and purchased a Pinnacle 80e, which does not seem to be supported in Linux. Therefore, I am stuck with Windows to use this device, and would love to know how I might be able to do such a scan in Windows.
Re: How to Tune ATSC...
Posted: 30 Dec 2009 23:59
by autopilot
I would also like to know how to scan channels in Windows. I'm able to find one channel manually.
Re: How to Tune ATSC...
Posted: 28 Apr 2010 03:25
by tgutwin
Thanks, I also was looking all over for the channels.conf to commandline conversion...
The source never lies!
Works like a charm in Vancouver
CBC Hockey Night In Canada in HD!
vlc atsc:// :dvb-frequency=737000000 :dvb-modulation=8VSB --program=8
My channels.conf is
CBC-HD:737000000:8VSB:129:132:8
GlobalBC:521000000:8VSB:49:52:1
CTV-DT:587000000:8VSB:33:36:2
Citytv:671000000:8VSB:33:36:2
KVOS-DT:599000000:8VSB:1937:1940:121
OMNI-DT:509000000:8VSB:481:482:1