[mythtv] [mythtv-commits] Ticket #1772: Allow Multiple Channels rom 1 Transponder...

[Bruce Markey]

Martin Long wrote:
> Ok. I think the main concern with this is going to be complications added
> to the scheduler.

This issue has come up time and time again and each time
people come to this wrong conclusion. The scheduler already
knows how to assign shows to multiple inputs on multiple
cards with multiple video sources in any combination and
deal with overlaps, choosing the preferred input, "L"atering
shows to make them fit, etc.

> Think about it - it aint easy. It's not just a case of
> sharing a tuner with another show. What if it overlaps another show,
> compound overlappings, could an optimiser be used, when would it be
> appropriate to stop optimising, and just record a later showing.

This is all a done deal.

> The actual task of grabbing several channels is academic,

But there is no way to configure this. That is the missing
piece. There would need to be a mechanism to tell the system
that the same device can be used as two independent inputs
that are not mutually exclusive. The other side of the coin
is that there in no way to tell the system that two inputs
on different cards share a resource and need to be mutually
exclusive.

Currently the premise is that all cards are independent and
can record one show at a time each. If there are two inputs
on the same card, it can only record from one or the other.

Here is an old discussion of these issues:

http://www.gossamer-threads.com/lists/mythtv/dev/182867

--  bjm