[mythtv-users] Sports events, LiveTV or Watch Recording?

[Chris Ribe]

With regards to the football game situation, there IS a right answer.
(please forgive the use of caps for emphasis) If a tuner wants to record two
different things that are on the  SAME CHANNEL at the SAME TIME,  myth
should record the overlapping portion once and graft it onto both .nuvs.  I
understand that this is not a trivial thing to implement, but it is the
kick-me-in-the-head obvious solution to the problem.

I'd like to think that mythtv is smart, but a program that sits there and
says "I can't record this because I'm busy recording this" is just dumb.

On 1/27/06, Bruce Markey <bjm at lvcm.com> wrote:
>
> Greg Woods wrote:
> > On Fri, 2006-01-27 at 14:54 -0500, Michael T. Dean wrote:
> >> if you have one capture card and want to record a show on
> >> channel 3 from 7:00 to 9:00 with a recording-rule specified extra 15
> >> minutes on the end and a show on the same channel from 9:00 to 10:00,
> >> one will conflict with the other--you've said the 7:00 to 9:00 show is
> >> actually airing between 7:00 and 9:15.  Therefore, you would need a
> >> second capture card to get the 9:00 to 9:15 show.
> >
> > OK, that explains it. I've got a PVR-500, with two tuners, and this type
> > of conflict occurs when I am also recording another game on a different
> > channel. Now for the overlap period I am trying to record three things
> > with two tuners: the first game's extension, the second game on the same
> > channel, and a third game on a different channel. It would be nice if it
> > figured out that the first extension isn't needed because the second
> > recording will be recording that channel anyway, but it isn't quite that
> > smart yet, so I end up having to manually remove the extension for the
> > first game to resolve the conflict.
>
> Understood. No question about what you are asking. However, this
> falls into what I call 'mind reading'. The scheduler faithfully
> acts on the information that you have given. It can't second guess
> that information because there's at least half a chance that second
> guessing will do the wrong thing.
>
> For a poor but real example, back before version, say 0.8, we had
> duplicate matching but Single was not treated as an exception. If
> you chose something to Single record, it might see 'oh, he's recorded
> it before. I know he doesn't really need to record this again. I'll
> help him out with his amnesia 8-)" This has been changed to "Single
> record 'cause I said so, damn it!".
>
> In http://www.mythtv.org/docs/mythtv-HOWTO-12.html I try to convey
> that the scheduler is a tool kit where you are empowered to tell it
> exactly what you want. The problem comes up when someone tells the
> scheduler some things to do, sees that the result isn't exactly
> want they want, then wishes the scheduler would have read their
> mind rather than using the tools to give it more information to
> express exactly what they want.
>
> For any sort of algorithm proposed to second guess a specific
> situation, there is an opposite example where that exceptional
> decision would do exactly the wrong thing.
>
> If you had three cards, it could record all of them but with two,
> you have to decide what to do at the start of the second game. You
> might decide that one of the later games is boring and you don't
> want to sit through it anyway. You might want to start the second
> game on the same channel late so that the conclusion of the first
> game is in the same file. All it has to go on is that football
> games need to record extra time and there is no one right answer
> if they conflict. However, you know what the right answer for you
> is on this day in this situation. You just need to tell it what
> you prefer by adding an override.
>
> The other thing that always comes up is that idea that the extra
> time should be optional so the scheduler doesn't have to warn you
> about a conflict to let you know that you need to look and decide.
> In a case like this, that is a bad idea. You want to require the
> extra time because if the show that followed on another channel is
> recorded and no conflict is reported, The game could be truncated
> during the final dramatic drive with no forewarning. If it tells
> you there is a conflict then you can decide how you feel about the
> game and the show on another channel that follows. The silicon
> gates can't know how you feel, they can only know the numbers that
> were entered into the equation.
>
> --  bjm
>
>
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