<div class="gmail_quote">On Thu, Dec 4, 2008 at 3:44 PM, R. G. Newbury <span dir="ltr"><<a href="mailto:newbury@mandamus.org">newbury@mandamus.org</a>></span> wrote:<br>
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<div class="Wj3C7c">matt lutz wrote:<br>> All,<br>><br>> I've recently switched from DirecTV/OTA to digital cable. I have a<br>> HDHomeRun that I wanted to tune the ATSC channels with. I've successfully<br>
> set up the new listings, the HDHR, and scanned for the channels. I get the<br>> local networks in HD, and some other odd news channels, but I don't get a<br>> decent amount of the available content. I've been able to map all of the<br>
> channels it does find to the proper channel # and xmltv ID, but the big<br>> problem is the missing channels.<br>><br>> If I use the HDHR windows app, I get all of them. here is my listings page:<br>><br>
> <a href="http://www.silicondust.com/hdhomerun/lineupui?Cmd=LocationProgramsWeb&Country=US&Postcode=22302" target="_blank">http://www.silicondust.com/hdhomerun/lineupui?Cmd=LocationProgramsWeb&Country=US&Postcode=22302</a><br>
><br>> Mythtv doesn't find anything with a 'program' number of over 100 for some<br>> reason. I've searched all over the place on how to add new channels to the<br>> database, and I've done what I think should be correct, but myth can't get a<br>
> good channel lock on the new channel I add to the db.<br>><br>> Like I said, I know the HDHR can tune the channel, because I can get it on<br>> my windows laptop using the HDHR software. Does anyone have any ideas on<br>
> what could be wrong in my myth setup?<br><br></div></div>It's not clear what you are actually adding to the db. What you need to<br>add are: a) the frequency to dtv_multiplex and b) the channel info to<br>the channel table.<br>
The *number* which 'everyone' uses for a channel now means basically<br>nothing. And there actually are NO channel frequencies with a number<br>over 100: those are just for convenience.<br><br>There is page here:<br>
<a href="http://www.mythtv.org/wiki/index.php/Adding_Digital_Cable_Channels_(For_ATSC/QAM_Tuner_Cards_--_USA/Canada)" target="_blank">http://www.mythtv.org/wiki/index.php/Adding_Digital_Cable_Channels_(For_ATSC/QAM_Tuner_Cards_--_USA/Canada)</a><br>
<br>which discusses this in some detail,<br><br>If your hdhr can see it, then it can produce output which you can use to<br> set up your database. You really want to install the dvb-apps package<br>to start with. It's in Fedora 'Everything' but available elsewhere of<br>
course. Among other things it provides files listing frequencies and<br>channel numbers:<br>/usr/share/dvb-apps/atsc/us-ATSC-center-frequencies-8VSB<br>/usr/share/dvb-apps/atsc/us-Cable-Standard-center-frequencies-QAM256<br>
<br>Since these are ATSC OTA channels, you would use the first page and the<br>azap program to scan for channels. Or you could just create entries in<br>dtv_multiplex with numbers and frequencies.<br>THEN you have to find the digital streams, and set up the PID and other<br>
info in the channels table. The wiki page describes this, and how to<br>test using azap and mplayer.<br><br>I suspect that you are trying to push into the database, the number<br>which you would use in casual talk to describe a station, when its<br>
actual channel and PID are quite different due to the digital shift. The<br>3 networks in Buffalo used to be '2,4 and 7' and they still call<br>themselves that, but those are NOT the tuning frequency channels they use.<br>
<br>Finally, if you can tune some unknown channel in mythtv, and recognize<br>it by its content against the guide you can use the on-screen editor to<br>set the Name (WABC-DT) and XMLTVID, to match you Schedules Direct<br>
lineup. (But note: the xlmtvid is the definitive identifier at the<br>SchedulesDirect end, but a tv station (or cable provider) and (and they<br>do) change the frequency and/or PID of the digital stream whenever they<br>damn well please!<br>
<br>Geoff<br><br></blockquote>
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<div>Geoff,</div>
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<div>Thanks for the reply. Sorry - I misspoke when I said 'ATSC', I really meant qam256. I do know the feqid and muliplex ID. referenceing the hdhomerun listings data, I'm trying to tune feqid 91, multiplex 108. These are the fields that I've entered into a new row in the database. via mythtv, I can't get a lock on it. That goes for any channel that has a multiplex id of over 100. I'm not sure if that's just a coincidence or not...</div>
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<div>I should also add that I'm running mythbuntu 8.04 w/ mythtv 0.21, and I'm trying to tune Comcast digital cable.</div>
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<div>thanks,</div>
<div>matt</div>
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