Mailing List Archive: MythTV: Users

Manual, or less frequent, EIT crawl?

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tylernt at gmail

Jun 16, 2010, 10:17 PM

Post #1 of 21 (1919 views)
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Manual, or less frequent, EIT crawl?

I'm setting up 0.23 with a HDHomeRun for ATSC OTA. I want to use EIT
for program listings (as I have been on my old 0.21 install), but the
constant EIT crawl is annoying for several* reasons. I'd like to
either:

1. disable the EIT crawl, but use cron to run an hourly EIT scan
or,
2. make the EIT crawler sleep for 60 minutes after each scan

Any ideas on how to accomplish one of these?

Thanks,
___
/yler

* increases power consumption**, makes the activity lights on my
network switch useless, makes the 'tuned' light on the HDHR useless.

** this is a low-power system using a SheevaPlug w/ laptop HD for the
MBE with an eye to eventually going solar/wind power
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krt at krt

Jun 17, 2010, 1:33 AM

Post #2 of 21 (1875 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 17/06/10 15:17, Tyler T wrote:
> I'm setting up 0.23 with a HDHomeRun for ATSC OTA. I want to use EIT
> for program listings (as I have been on my old 0.21 install), but the
> constant EIT crawl is annoying for several* reasons. I'd like to
> either:
>
> 1. disable the EIT crawl, but use cron to run an hourly EIT scan
> or,
> 2. make the EIT crawler sleep for 60 minutes after each scan
>
> Any ideas on how to accomplish one of these?
>

Yeah, all I can add is "me too!"

I think my mythbox spends most of it's time constantly re-scanning EIT
data, when it should be sleeping.

I couldn't find anything to tell it to do this less.

any help much appreciated.

cheers,
-kt

mythtv at theseekerr

Jun 17, 2010, 7:00 AM

Post #3 of 21 (1872 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On Thu, Jun 17, 2010 at 6:33 PM, Kingsley Turner <krt [at] krt> wrote:
> On 17/06/10 15:17, Tyler T wrote:
>
> I'm setting up 0.23 with a HDHomeRun for ATSC OTA. I want to use EIT
> for program listings (as I have been on my old 0.21 install), but the
> constant EIT crawl is annoying for several* reasons. I'd like to
> either:
>
> 1. disable the EIT crawl, but use cron to run an hourly EIT scan
> or,
> 2. make the EIT crawler sleep for 60 minutes after each scan
>
> Any ideas on how to accomplish one of these?
>
> Yeah, all I can add is "me too!"
>
> I think my mythbox spends most of it's time constantly re-scanning EIT data,
> when it should be sleeping.
>
> I couldn't find anything to tell it to do this less.
>
> any help much appreciated.

Isn't there a per tuner setting "use tuner for active EIT scan" or
something of the like? My understanding was that with that turned off,
EIT data is only collected during recordings.

- Chris
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knowledgejunkie at gmail

Jun 17, 2010, 7:11 AM

Post #4 of 21 (1864 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 17 June 2010 15:00, Christopher Kerr <mythtv [at] theseekerr> wrote:
>
> Isn't there a per tuner setting "use tuner for active EIT scan" or
> something of the like? My understanding was that with that turned off,
> EIT data is only collected during recordings.

Capture Card Setup -> Recording Options for the card(s) in question in
mythtv-setup.

Nick

--
Nick Morrott

MythTV Official wiki: http://mythtv.org/wiki/
MythTV users list archive: http://www.gossamer-threads.com/lists/mythtv/users

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tylernt at gmail

Jun 17, 2010, 7:25 AM

Post #5 of 21 (1867 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

>> Isn't there a per tuner setting "use tuner for active EIT scan" or
>> something of the like? My understanding was that with that turned off,
>> EIT data is only collected during recordings.
>
> Capture Card Setup -> Recording Options for the card(s) in question in
> mythtv-setup.

Yes, this is true, but then you run into the situation where EIT data
is only published X hours in advance, but your next recording on
channel Y is X+1 hours from now, so you'll never get the EIT data for
that show and it will never record. Passive scan is great, as long as
there's a way to manually force a full scan periodically to fill in
these gaps.
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mtdean at thirdcontact

Jun 17, 2010, 7:26 AM

Post #6 of 21 (1866 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 06/17/2010 01:17 AM, Tyler T wrote:
> I'm setting up 0.23 with a HDHomeRun for ATSC OTA. I want to use EIT
> for program listings (as I have been on my old 0.21 install), but the
> constant EIT crawl is annoying for several* reasons. I'd like to
> either:
>
> 1. disable the EIT crawl, but use cron to run an hourly EIT scan
> or,
> 2. make the EIT crawler sleep for 60 minutes after each scan
>
> Any ideas on how to accomplish one of these?
>
> Thanks,
> ___
> /yler
>
> * increases power consumption**, makes the activity lights on my
> network switch useless, makes the 'tuned' light on the HDHR useless.
>
> ** this is a low-power system using a SheevaPlug w/ laptop HD for the
> MBE with an eye to eventually going solar/wind power
>

Isn't there some program that reads EIT data and creates an XMLTV file?

Mike
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knowledgejunkie at gmail

Jun 17, 2010, 7:45 AM

Post #7 of 21 (1865 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 17 June 2010 15:26, Michael T. Dean <mtdean [at] thirdcontact> wrote:

> Isn't there some program that reads EIT data and creates an XMLTV file?

epgsnoop is one that does this -> https://launchpad.net/epgsnoop

Nick

--
Nick Morrott

MythTV Official wiki: http://mythtv.org/wiki/
MythTV users list archive: http://www.gossamer-threads.com/lists/mythtv/users

"An investment in knowledge always pays the best interest." - Benjamin Franklin
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tylernt at gmail

Jun 17, 2010, 8:56 AM

Post #8 of 21 (1858 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

>> Isn't there some program that reads EIT data and creates an XMLTV file?
>
> epgsnoop is one that does this -> https://launchpad.net/epgsnoop

Ah, that is an excellent idea. A little hacking to get it to use the
HDHR tools instead of dvbtune should be trivial, but unfortunately the
'dvbsnoop' binary used by epgsnoop does not support ATSC ("currently
no plans --> I cannot test these streams").

I'm looking at eitscanner.cpp in Myth's source code, and I see there's
already a "activeScanNextTrig = QDateTime::currentDateTime();" so
turning the EIT "marathon" into more of an actual "crawl" might be as
simple as adding a "+ 3600" to that line?
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mtdean at thirdcontact

Jun 17, 2010, 10:23 AM

Post #9 of 21 (1849 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 06/17/2010 11:56 AM, Tyler T wrote:
>>> Isn't there some program that reads EIT data and creates an XMLTV file?
>>>
>> epgsnoop is one that does this -> https://launchpad.net/epgsnoop
>>
> Ah, that is an excellent idea. A little hacking to get it to use the
> HDHR tools instead of dvbtune should be trivial, but unfortunately the
> 'dvbsnoop' binary used by epgsnoop does not support ATSC ("currently
> no plans --> I cannot test these streams").
>
> I'm looking at eitscanner.cpp in Myth's source code, and I see there's
> already a "activeScanNextTrig = QDateTime::currentDateTime();" so
> turning the EIT "marathon" into more of an actual "crawl" might be as
> simple as adding a "+ 3600" to that line?
>

Well, if you're using ATSC, then you have a much better option:
http://www.schedulesdirect.org/ . $20 per year and you stop wasting
time, save all the power required for EIT scanning ever, and get much
better quality data that's worth far more than the $20/yr.

Mike
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tylernt at gmail

Jun 17, 2010, 10:51 AM

Post #10 of 21 (1848 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

> Well, if you're using ATSC, then you have a much better option:
> �http://www.schedulesdirect.org/ . �$20 per year and you stop wasting time,
> save all the power required for EIT scanning ever, and get much better
> quality data that's worth far more than the $20/yr.

I appreciate the suggestion, but respectfully, I'd rather put that $20
up as a bounty for a Myth dev to write a patchfile that adds a 1hr
delay after each EIT crawl. To avoid starting a debate on the relative
merits of SchedulesDirect, I'll content myself with saying I prefer a
one-time investment to a recurring expense. :)
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mikep at randomtraveller

Jun 17, 2010, 12:53 PM

Post #11 of 21 (1836 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

Tyler T wrote:
>> Well, if you're using ATSC, then you have a much better option:
>> http://www.schedulesdirect.org/ . $20 per year and you stop wasting time,
>> save all the power required for EIT scanning ever, and get much better
>> quality data that's worth far more than the $20/yr.
>
> I appreciate the suggestion, but respectfully, I'd rather put that $20
> up as a bounty for a Myth dev to write a patchfile that adds a 1hr
> delay after each EIT crawl. To avoid starting a debate on the relative
> merits of SchedulesDirect, I'll content myself with saying I prefer a
> one-time investment to a recurring expense. :)
>
Besides, the SchedulesDirect option doesn't help those of us in other countries
where the proposed patch could also be of use.

--

Mike Perkins

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raymond at wagnerrp

Jun 17, 2010, 1:23 PM

Post #12 of 21 (1837 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 06/17/10 01:17, Tyler T wrote:
> I'm setting up 0.23 with a HDHomeRun for ATSC OTA. I want to use EIT
> for program listings (as I have been on my old 0.21 install)
>

Out of curiosity, just how much data do you get over EIT? Last I checked
around here, I only got a couple hours of data from most of my local
providers.
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krt at krt

Jun 17, 2010, 4:44 PM

Post #13 of 21 (1826 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 18/06/10 06:23, Raymond Wagner wrote:
> Out of curiosity, just how much data do you get over EIT? Last I checked
> around here, I only got a couple hours of data from most of my local
> providers.
>

7 days (NSW, Australia)
But I also used to get at least that much in Switzerland (Basel) too ...
maybe 14 days(?)

So you can see why running EIT scan constantly is a bit of a waste of power.

cheers,
-kt

raymond at wagnerrp

Jun 17, 2010, 6:16 PM

Post #14 of 21 (1825 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 6/17/2010 19:44, Kingsley Turner wrote:
> On 18/06/10 06:23, Raymond Wagner wrote:
>> Out of curiosity, just how much data do you get over EIT? Last I checked
>> around here, I only got a couple hours of data from most of my local
>> providers.
> 7 days (NSW, Australia)
> But I also used to get at least that much in Switzerland (Basel) too
> ... maybe 14 days(?)

I was referring specifically to the original poster who is from North
America. ATSC EIT is notoriously bad.

tylernt at gmail

Jun 17, 2010, 6:55 PM

Post #15 of 21 (1816 views)
Permalink

Re: Manual, or less frequent, EIT crawl? [In reply to]

>> I'm setting up 0.23 with a HDHomeRun for ATSC OTA. I want to use EIT
>> for program listings (as I have been on my old 0.21 install)
>>
>
> Out of curiosity, just how much data do you get over EIT? Last I checked
> around here, I only got a couple hours of data from most of my local
> providers.

It varies by channel: 10 hours is typical, with 6 hours being the
minimum and one channel sending 5 days. Adequate for me; I've been
using EIT for a little over a year now with no problems.
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lists at firecloud

Jun 18, 2010, 10:08 AM

Post #16 of 21 (1776 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

From: Raymond Wagner <raymond [at] wagnerrp>

>Out of curiosity, just how much data do you get over >EIT? Last I checked
>around here, I only got a couple hours of data from >most of my local
>providers.

On UK freeview (DVB-T) it's about eight days.

--
Simon Waldman
swaldman [at] firecloud
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francesco at fampeeters

Jun 18, 2010, 2:53 PM

Post #17 of 21 (1762 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 6/18/10 01:44 , Kingsley Turner wrote:
> On 18/06/10 06:23, Raymond Wagner wrote:
>> Out of curiosity, just how much data do you get over EIT? Last I checked
>> around here, I only got a couple hours of data from most of my local
>> providers.
>>
>
> 7 days (NSW, Australia)
> But I also used to get at least that much in Switzerland (Basel) too
> ... maybe 14 days(?)
>
> So you can see why running EIT scan constantly is a bit of a waste of
> power.
>
> cheers,
> -kt
But others in Europe, like myself, only get Current and Next, so once an
hour would not be helpful... Configurable intervals would be more
useful, I guess. But because of that behavior, I just use XMLTV
instead... That gets me a week and runs once at 1am every day...
--
FP

mtdean at thirdcontact

Jun 18, 2010, 3:56 PM

Post #18 of 21 (1762 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 06/18/2010 05:53 PM, Francesco Peeters wrote:
> On 6/18/10 01:44 , Kingsley Turner wrote:
>> On 18/06/10 06:23, Raymond Wagner wrote:
>>> Out of curiosity, just how much data do you get over EIT? Last I checked
>>> around here, I only got a couple hours of data from most of my local
>>> providers.
>>>
>> 7 days (NSW, Australia)
>> But I also used to get at least that much in Switzerland (Basel) too
>> ... maybe 14 days(?)
>>
>> So you can see why running EIT scan constantly is a bit of a waste of
>> power.
> But others in Europe, like myself, only get Current and Next, so once
> an hour would not be helpful... Configurable intervals would be more
> useful, I guess. But because of that behavior, I just use XMLTV
> instead... That gets me a week and runs once at 1am every day...

http://svn.mythtv.org/trac/ticket/5754

But I still maintain that the OP is doing himself a disservice by not
paying $20 for a Schedules Direct membership so he can get free,
extremely-high-quality, detailed, long-term listings that MythTV can use
to schedule input usage most effectively. But if all he wants is a
glorified VCR with a list of what plays in the next 8 hours or so, I
suppose using EIT in the US will work.

Mike
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anaerin at gmail

Jun 18, 2010, 4:08 PM

Post #19 of 21 (1759 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 18/06/2010 4:56 PM, Michael T. Dean wrote:
> http://svn.mythtv.org/trac/ticket/5754
>
> But I still maintain that the OP is doing himself a disservice by not
> paying $20 for a Schedules Direct membership so he can get free,
> extremely-high-quality, detailed, long-term listings that MythTV can use
> to schedule input usage most effectively. But if all he wants is a
> glorified VCR with a list of what plays in the next 8 hours or so, I
> suppose using EIT in the US will work.

I realise that Schedules Direct is the best way to go, but if he doesn't
have/can't afford/doesn't want to pay for a SD membership, he can always
take advantage of the "Microsoft Media Center" listings services with
mc2xml (http://mc2xml.110mb.com/). I'm personally using it on my
backend, and it works fantastically (I wrote the tv_split addendum on
that site to overcome a major shortcoming in mythfilldatabase).

HTH
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raymond at wagnerrp

Jun 18, 2010, 4:29 PM

Post #20 of 21 (1752 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

On 6/18/2010 19:08, Robert Johnston wrote:
> I realise that Schedules Direct is the best way to go, but if he
> doesn't have/can't afford/doesn't want to pay for a SD membership, he
> can always take advantage of the "Microsoft Media Center" listings
> services with mc2xml (http://mc2xml.110mb.com/). I'm personally using
> it on my backend, and it works fantastically (I wrote the tv_split
> addendum on that site to overcome a major shortcoming in
> mythfilldatabase).

It is the opinion of this project that Microsoft's guide listings are
licensed for the sole use of Windows Media Center users, and only for
use with the Windows Media Center software. Use of such guide data
outside WMC would be deemed a violation of the terms of use for that
software. Without some form of consent from Microsoft indicating that
such use of their guide data is allowed, we would request that you keep
all discussion of such software off any official MythTV channels.
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tylernt at gmail

Jun 18, 2010, 7:31 PM

Post #21 of 21 (1754 views)
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Re: Manual, or less frequent, EIT crawl? [In reply to]

> http://svn.mythtv.org/trac/ticket/5754

Whoa! Wish I'd known about this before I spent 2 hours this evening
coding my own patch. :-P Ah well, it looks like the above patch had
some issues, so perhaps this is for the best anyway. I was gratified
to see that power consumption was reduced considerably, though.

I'll keep playing with my patched eitscanner.cpp. I've done coding but
never before in C++, so that could be a good thing (KISS) or a bad
thing. Since it sounds like there may be others interested, I'll
probably publish my patch here, if that is appropriate (and I can
manage to make it stable for a few days of course!).

> But if all he wants is a glorified
> VCR with a list of what plays in the next 8 hours or so, I suppose using EIT
> in the US will work.

Indeed this is exactly what I want. Before the FCC mandated digital
and I started using EIT because it was there, my analog Myth
recordings were all completely Manual. Before that, I really did use a
VCR. :)

Just to clarify, even with only 8 hours of EIT, Myth still records my
weekly shows -- they just don't show up in Upcoming Recordings etc
until a few hours beforehand. So I'm not missing any of my shows, I
just have to schedule them a few hours before air time (or more
frequently, from past EPG data by scrolling left a ways in the grid)
and I never have to touch it again.
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