I'm making a few edits, just to clear up a few things I hit following these directions. Hopefully this will also help others.
On 9/16/05, Jason Beck <
[EMAIL PROTECTED]> wrote:
And this is documented elsewhere, but I it's probably a good place to note: uncheck all the channels you don't intend to receive. In my case, there are only 4 HDTV channels I can receive from my cable system.
You need to stop mythbackend before step 3) above or else the scan can't get ahold of the card to do it's thing.
Maybe it's just me, but I had to be sure to arrow-down and select "Finish". The first time through I just hit the Enter key and the results of the scan didn't show up in the Channels window (so Cancel was probably highlighted.)
mythtv-setup may complain on exit about the start channel not existing, at this point, I chose "I know what I'm doing" (or something like that ;-) and exited.
I'm not positive, but I think mythbackend should be running when you run mythfilldatabase (maybe it doesn't matter, and if that's the case, someone can correct me.) I started mythbackend back up before running mythfilldatabase.
In my go at it, here's what dvbscan -c found for one azap tuned channel:
dumping lists (3 services)
[0001] (0x0001) 00: PCR == V V 0x0010 A 0x0011
[0003] (0x0003) 00: PCR == V V 0x0090 A 0x0091 (eng)
[0002] (0x0002) 00: PCR == V V 0x0050 A 0x0051 (eng)
Hmmm. I got this far, only to find the DVB QAM scan found two frequencies I wasn't expecting and neither of the ones my manual dvbscan found. Go Figure!
select frequency from dtv_multiplex;
+-----------+
| frequency |
+-----------+
| 717000000 |
| 579000000 |
+-----------+
I went back into mythtv-setup, to channel editor, and chose to
import (my already edited) channels.conf file. BTW, I am running the
MythTV CVS version I got earlier today. I don't think 18.1 let you
import a channels.conf though the mythtv-setup app.
This seemed to work. Back in the database:
mysql> select frequency from dtv_multiplex;
+-----------+
| frequency |
+-----------+
| 717000000 |
| 579000000 |
| 561000000 |
| 567000000 |
+-----------+
561 and 567 MHz are the channels I was expecting to find.
mysql> select mplexid from dtv_multiplex where frequency = '561000000';
+---------+
| mplexid |
+---------+
| 3 |
+---------+
mysql> select mplexid from dtv_multiplex where frequency = '567000000';
+---------+
| mplexid |
+---------+
| 4 |
+---------+
Confirmed the mythfilldatabase gave me the channels I wanted:
mysql> select channum from channel;
+---------+
| channum |
+---------+
| 0 |
| 0 |
| 0 |
| 0 |
| 704 |
| 705 |
| 707 |
| 709 |
| 85#0 |
| 85#1 |
+---------+
There are some duds in there, but also the ones I want (in the 700 range). Hopefully I can delete the rest later.
After this step, I went back into mythtv-setup before proceeding and set my start channel to 704, since that should be a valid channel now.
I CAN'T BELIEVE IT!!! IT WORKS!!!!!! :) :) :)
I went back to add the other three channels. Killed mythbackend so I could tune with azap and dvbscan -c. repeated the step 11 sequence for my other 3 QAM channels. My other three channels ended up being:
freq,mplexid,serviceid
561000000,3,3
567000000,4,1
567000000,4,3
I don't know if this is "normal" or unique to my cable system (Adelphia) but the dvbscan -c found a serviceid of 2 inbetween 1 and 3 on both frequencies but it wouldn't tune / Myth reported it was encrypted. Using serviceids 1 and 3 did the trick.
In the end, this is what the relevant stuff looks like in my channel table in MySQL:
mysql> select chanid,channum,freqid,mplexid,serviceid,callsign,xmltvid from channel;
+--------+---------+-----------+---------+-----------+----------+---------+
| chanid | channum | freqid | mplexid | serviceid | callsign | xmltvid |
+--------+---------+-----------+---------+-----------+----------+---------+
| 1704 | 704 | 561000000 | 3 | 1 | WRCDT | 19578 |
| 1707 | 707 | 561000000 | 3 | 3 | WJLADT | 19579 |
| 1709 | 709 | 567000000 | 4 | 1 | WUSADT | 19580 |
| 1705 | 705 | 567000000 | 4 | 3 | WTTGDT | 20367 |
+--------+---------+-----------+---------+-----------+----------+---------+
Hmm, I remember seeing that setting, but in the CVS version I am running (maybe .19.2)... it doesn't appear there in the advanced section. On the other hand, I am not seeing FF or RWD problems in limited use, maybe it has been defaulted to your preferred setting.
Oh, it helped immensely! Thank you so much! I hope my feedback helps you or someone else in a similar situation.
The only problem left (well, I'm sure I will find
more ;-) ... the audio is great in my first two channels
(704 and 705) however, there is no audio in 707 or 709. I can't figure
out what the pattern is there since 704 uses service id 1 and 705 uses
service id 3 and they both use different frequencies; so the audio
problem doesn't seem to be localized to the either the frequency or the
service id.
If your provider is not kind enough to send the PSIP
info you will have to add the channels manually to the
database.
I'll try to explain how using you channels.conf as an
example. The database tables that need to be modified
are channel and dtv_multiplex. dtv_multiplex should
be populated by the channel scan and the channel table
you will need to modify yourself. Below is an example
of how you would setup your NBC (assuming
ch#707)channel in Myth.
1.) go to zap2it and build your listing for your local
HD broadcast channels.
And this is documented elsewhere, but I it's probably a good place to note: uncheck all the channels you don't intend to receive. In my case, there are only 4 HDTV channels I can receive from my cable system.
2.) assign that listing to your dvb 3k in mythtvsetup
3.) go into the channel editor (still in mythtvsetup)
select your new listing and do a scan (select type
"cable")
You need to stop mythbackend before step 3) above or else the scan can't get ahold of the card to do it's thing.
Maybe it's just me, but I had to be sure to arrow-down and select "Finish". The first time through I just hit the Enter key and the results of the scan didn't show up in the Channels window (so Cancel was probably highlighted.)
The scan will take some time. Mostly likely you won't
really get anything useful, but what this will do it
populate the dtv_multiplex table in your db. You will
need this later on.
4.) exit mythtvsetup and run mythfilldatabase. This
will now provide you with your xmltvids to callsign
mappings.
mythtv-setup may complain on exit about the start channel not existing, at this point, I chose "I know what I'm doing" (or something like that ;-) and exited.
I'm not positive, but I think mythbackend should be running when you run mythfilldatabase (maybe it doesn't matter, and if that's the case, someone can correct me.) I started mythbackend back up before running mythfilldatabase.
At this point you still will not be able to tune
anything yet so don't try.
5.) ***Important*** stop mythbackend.
6.) edit your channels.conf and remove your PSIP
values. You don't need them for Myth. So your file
will look like this.
NBC:561000000:QAM_256:0:0
ABC:561000000:QAM_256:0:0
CBS:567000000:QAM_256:0:0
FOX:567000000:QAM_256:0:0
7.) go ahead and fire up azap and tune a channel.
$ azap -r NBC
8.) in a second terminial run dvbscan -c
$ dvbscan -c
What you need is the serviceid. This is the number in
the [000#] at the far left. Your provider will most
likely be using the same frequency for multiple
channels. So you may have more then one service per
freq. In this example your serviceid for NBC would be
2.
Example:
dumping lists (1 services)
[0002] (0x0002) 00: PCR == V V
0x0010 A 0x0011 (eng)
In my go at it, here's what dvbscan -c found for one azap tuned channel:
dumping lists (3 services)
[0001] (0x0001) 00: PCR == V V 0x0010 A 0x0011
[0003] (0x0003) 00: PCR == V V 0x0090 A 0x0091 (eng)
[0002] (0x0002) 00: PCR == V V 0x0050 A 0x0051 (eng)
Now stop your dvbscan and azap tune.
9.) log into your database.
$mysql -u root -p mythconverg
To tune the 3k you will need to find the mplexid for
you known frequency.
10.) finding the mplexid
mysql> select mplexid from dtv_multiplex where
frequency = '561000000';
+---------+
| mplexid |
+---------+
| 25 |
+---------+
1 row in set (0.01 sec)
Write down the mplexid value. For example sake we
will say it was 25.
Hmmm. I got this far, only to find the DVB QAM scan found two frequencies I wasn't expecting and neither of the ones my manual dvbscan found. Go Figure!
select frequency from dtv_multiplex;
+-----------+
| frequency |
+-----------+
| 717000000 |
| 579000000 |
+-----------+
This seemed to work. Back in the database:
mysql> select frequency from dtv_multiplex;
+-----------+
| frequency |
+-----------+
| 717000000 |
| 579000000 |
| 561000000 |
| 567000000 |
+-----------+
561 and 567 MHz are the channels I was expecting to find.
mysql> select mplexid from dtv_multiplex where frequency = '561000000';
+---------+
| mplexid |
+---------+
| 3 |
+---------+
mysql> select mplexid from dtv_multiplex where frequency = '567000000';
+---------+
| mplexid |
+---------+
| 4 |
+---------+
11.) Now you are ready to setup the channel. You have
the freqency (561000000),mplexid(25),and the
serviceid(2). Assuming that you now have a channel
707 from the previous mythfilldatabase above.
Confirmed the mythfilldatabase gave me the channels I wanted:
mysql> select channum from channel;
+---------+
| channum |
+---------+
| 0 |
| 0 |
| 0 |
| 0 |
| 704 |
| 705 |
| 707 |
| 709 |
| 85#0 |
| 85#1 |
+---------+
There are some duds in there, but also the ones I want (in the 700 range). Hopefully I can delete the rest later.
mysql> update channel set freqid="561000000" where
channum=707;
mysql> update channel set mplexid="25" where
channum=707;
mysql> update channel set serviceid="2" where
channum=707;
You may want to do a quick check to make sure all
looks good.
mysql> select * from channel where channum=707;
mysql> quit
12.) Start mythbackend
After this step, I went back into mythtv-setup before proceeding and set my start channel to 704, since that should be a valid channel now.
13.) Start up the frontend and test.
I CAN'T BELIEVE IT!!! IT WORKS!!!!!! :) :) :)
I went back to add the other three channels. Killed mythbackend so I could tune with azap and dvbscan -c. repeated the step 11 sequence for my other 3 QAM channels. My other three channels ended up being:
freq,mplexid,serviceid
561000000,3,3
567000000,4,1
567000000,4,3
I don't know if this is "normal" or unique to my cable system (Adelphia) but the dvbscan -c found a serviceid of 2 inbetween 1 and 3 on both frequencies but it wouldn't tune / Myth reported it was encrypted. Using serviceids 1 and 3 did the trick.
In the end, this is what the relevant stuff looks like in my channel table in MySQL:
mysql> select chanid,channum,freqid,mplexid,serviceid,callsign,xmltvid from channel;
+--------+---------+-----------+---------+-----------+----------+---------+
| chanid | channum | freqid | mplexid | serviceid | callsign | xmltvid |
+--------+---------+-----------+---------+-----------+----------+---------+
| 1704 | 704 | 561000000 | 3 | 1 | WRCDT | 19578 |
| 1707 | 707 | 561000000 | 3 | 3 | WJLADT | 19579 |
| 1709 | 709 | 567000000 | 4 | 1 | WUSADT | 19580 |
| 1705 | 705 | 567000000 | 4 | 3 | WTTGDT | 20367 |
+--------+---------+-----------+---------+-----------+----------+---------+
-- A couple of things I ran across later with the 3k.
By default the 3k will be set to record in PS mode. I
had wierd fastforward and rewind problems. In
mythtvsetup under capture cards-->dvb-->Advanced
settings I selected the "Use TS instead of PS" option
and the ffw and rew problems went away.
Hmm, I remember seeing that setting, but in the CVS version I am running (maybe .19.2)... it doesn't appear there in the advanced section. On the other hand, I am not seeing FF or RWD problems in limited use, maybe it has been defaulted to your preferred setting.
I hope this helps. I just went through this about a
week ago and it was not easy to find all of the info.
Alot for trial and error. Let me know how it works
out for you...
Oh, it helped immensely! Thank you so much! I hope my feedback helps you or someone else in a similar situation.
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