[mythtv] schema for manually adding channels
Matt Zagrabelny
mzagrabe at d.umn.edu
Thu Jan 14 15:38:18 UTC 2016
On Thu, Jan 14, 2016 at 8:04 AM, Michael T. Dean
<mtdean at thirdcontact.com> wrote:
> On 01/14/2016 08:12 AM, Matt Zagrabelny wrote:
>>
>> Hi Mike,
>>
>> Thanks for the reply!
>>
>> On Thu, Jan 14, 2016 at 6:39 AM, Michael T. Dean
>> <mtdean at thirdcontact.com> wrote:
>>>
>>> On 01/13/2016 05:37 PM, Matt Zagrabelny wrote:
>>>>
>>>> Greetings,
>>>>
>>>> I've grepped the -dev archives and didn't find an answer to the question
>>>> of:
>>>>
>>>> What tables do I need to add records to in order to manually add an
>>>> ATSC DTV channel?
>>>>
>>>> It looks like: channel and dtv_multiplex. Any other tables?
>>>>
>>>> I have a channels.conf file that works with mplayer:
>>>>
>>>> 3.1:587000000:8VSB:49:52:1
>>>> 3.2:587000000:8VSB:65:68:2
>>>> 6.1:503000000:8VSB:49:52:1
>>>> 6.2:503000000:8VSB:65:68:2
>>>> 8.1:183000000:8VSB:49:52:1
>>>> 8.2:183000000:8VSB:65:68:2
>>>> 8.3:183000000:8VSB:81:84:3
>>>> 8.4:183000000:8VSB:97:100:4
>>>> 10.1:195000000:8VSB:49:52:3
>>>> 10.2:195000000:8VSB:81:84:5
>>>> 21.1:491000000:8VSB:49:52:3
>>>>
>>>> Any hints about manually adding channels will be much appreciated.
>>>>
>>>> Thanks!
>>>
>>>
>>> Digital channels, especially, really need to be scanned using
>>> mythtv-setup's
>>> channel scanner. We don't support importing channels.conf anymore
>>> because
>>> there are many formats used by different channels.conf files and--more
>>> importantly--channels.conf doesn't contain all the information MythTV
>>> needs
>>> for its channels.
>>>
>>> So, why not just scan with MythTV's channel scanner?
>>
>> Using the scan for channels feature of mythtv-setup doesn't find the
>> channels. Originally after installing Myth, the scan didn't find *any*
>> channels - that was a few weeks/months ago. I just reran the scan
>> about a week ago and it found *one* channel - with four subchannels:
>> 8.1 - 8.4.
>>
>> The issue doesn't seem to be unique to myth either. I have run a
>> separate scan utility:
>>
>> w_scan -A1 -X -c US -fa -t3
>>
>> and it doesn't find all the channels, but it did find more than the
>> myth scan did.
>>
>> I have a friend who lives on the other side of town and his w_scan
>> found all the channels. I've used that channels.conf file with mplayer
>> and verified that all of the channels in it "work".
>>
>> Any ideas of where to proceed from here?
>>
>> Thanks for the help!
>
>
> Sounds like poor signal issues coupled with too-short tuning and/or signal
> timeouts. Try increasing (possibly significantly--like to the maximum
> allowed) the "Signal timeout (ms)" and "Tuning timeout (ms)" in Capture Card
> setup, then "Delete all Video Sources", then reconfigure your video sources
> and redo your channel scan.
Thanks for the advice, Mike. I upped the timeouts to 15 seconds, I
could have kept increasing it, but I didn't want the scan to take all
day.
The scan got almost all the channels - there is one channel left. So
either I need to rescan with a timeout longer than 15 seconds or
manually insert that last channel.
What do you think?
-m
More information about the mythtv-dev
mailing list