[mythtv-users] Channel Script Timeout

[scott at tbwifi.ca]

> 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.
>

I know that this is the issue with what I've done.

Can someone share with me how to pass these arguments on to the other
script and handle them properly in both?  I am not much of a programmer at
this point I'm afraid.

Thx
Scott