[mythtv-users] Channel changing question with HD-PVR

[Michael T. Dean]

On 01/20/2010 11:29 PM, Michael T. Dean wrote:
> On 01/20/2010 11:22 PM, Fred Hamilton wrote:
>   
>> I have an HD-PVR-based system.  It works really well - picture quality is
>> much better (almost perfect) and filesizes are smaller than I expected.
>>
>> However when I'm recording two shows back-to-back on the same channel, Myth
>> sends a channel change command, even though it's staying on the same
>> channel. This wouldn't be a huge problem except it takes AGES for my cable
>> box to respond, so I lose 20 seconds or so.
>>
>> Is there a way to tell Myth not to change channels if it's already on the
>> channel it needs to be on?  I understand that changing the channel before
>> every program starts is the conservative way to do it, but I want to live
>> dangerously!
>>
>> Cheers...
>>   
>>     
> No.  Myth always resets everything as if it was starting from scratch
> just in case something bad happened during the previous recording.
>   

That said, the right approach if you want to only change channels if you
need to is to have your channel change scripts take care of that.  They
would need to store information about what channel is currently tuned,
read that in, and decide whether to actually tune the channel or not. 
Could be written in anything from bash to Perl to C--wouldn't be too
terribly difficult in any language.  The script itself is left as an
exercise for the reader.

Mike