[mythtv-users] Channel Script Timeout

[Mike Perkins]

scott at tbwifi.ca wrote:
>> On 24/03/2009, Scott Souter <scott at tbwifi.ca> wrote:
>>> Hi,
>>>
>>>  I am trying to find a way to leave my delays in my channel change
>>> script
>>> longer, but Live TV times out on me if I set them where I want.
>>>
>>>  I have a Dish/Expressvu 4100 Sat box and I use extra commands to ensure
>>> that I don't get stuck in menus.
>>>
>>>  At the top I call a "cancel" to get out of any guide left on the screen
>>>  Then I call "guide" to get out of any non-subscribed channels entered
>>> by
>>> accident
>>>  Next is the standard channel change script
>>>  After entering the channels, I press "select" twice to get out of the
>>> guide
>>>
>>>  The delay that seems to work best in between each command and between
>>> digits is 0.7.  With this delay I don't have enough time before Myth
>>> times
>>> out on the channel script.  I was considering using a background script
>>> to
>>> overcome this, but I don't think the channel entry part can exist in the
>>> background script.
>>>
>>>  Can anybody offer some advice?
>> Have MythTV call a wrapper script. Add a call to your actual channel
>> changing script in the wrapper, and run that call in the background.
>>
>> Return true from the wrapper script immediately so that MythTV is
>> always happy that the channel change took place, and let your channel
>> changer take as much time as necessary to actually change the channel.
>> (Note that this simple approach will not report occasions if the
>> actual channel change failed.)
>>
> 
> I am a little lean on the knowledge to do this effectively.  I followed an
> example where someone else had done something similar.
> 
> In the script that MythTV calls, I only included:
> /usr/lib/bin/changesub.sh &
> where changesub.sh is the real change script.  The previous example noted
> that the '&' is used to run the script in the background and allows the
> primary script to finish.  I could however have understood this completely
> wrong.
> 
> In changesub.sh, I entered things that would normally be present in the
> script as if it were called directly.
> 
> Are there some other script / subroutine commands necessary to make things
> work properly?
> 
Make sure you pass through the arguments (ie channel #) from the original caller.

-- 

Mike Perkins