[mythtv] [mythtv-commits] Ticket #4328: support movable antennas with HD Home Run

[Raymond Wagner]

On 3/4/2012 15:22, Stuart Morgan wrote:
> On Sunday 04 Mar 2012 14:33:54 Raymond Wagner wrote:
>> On 3/3/2012 16:36, MythTV wrote:
>>>    Hmph, I was just thinking about posting a comment to this ticket to
>>>    close it as it's now pretty easy to control a rotor through via
>>>    script attached to the RecStarted event.
>>>
>>>    It's better than code too, a while ago I switched my rotor input
>>>    from an HDHR to an HVR-1600 and only had to touch the script's
>>>    cardID test. System events has to be one of the all-time great
>>>    changes!
>> I'm not sure if that's really a viable solution.  Simultaneous
>> recordings using different tuners at different directions would conflict
>> with each other, and there is no way for the scheduler to intelligently
>> handle that situation and avoid it.  It would work, and the RecPending
>> event would probably be a better choice, but it seems very prone to error.
> Can't input groups be used in some way to handle that?

Input groups prevent two inputs from ever being used at the same time.  
The issue here is that you've got some channels that are only accessible 
with the rotor turned in one direction, other channels that are only 
accessible if the rotor is turned opposite, but they're all in the same 
video source.  There is no way to tell the scheduler that if tuner A is 
using channel 1, tuner B can't access channel 2.  A single tuner 
attached to the rotor would work fine, but multiples would require some 
adaptation of the DiSEqC code for the scheduler to keep it all straight.