[mythtv-users] Loss of Service Recognition -- Nifty!

[Sasha Z]

On 3/17/06, Brian Wood <beww at beww.org> wrote:
>
> On Mar 17, 2006, at 3:12 PM, Sasha Z wrote:
>
> > In that case, a motion detection algorithm could work. The commflag
> > could go through and go, "hmm, the image has changed less than 0.05%
> > for an hour. that sounds like a really boring tv show. Maybe the
> > signal dropped out."
> >
> I ran into something like that playing with QAM signals. The buffer
> took forever to fill. Turned out to be digital music channels with a
> picture that changed only when the song did.
>
> Even a MD system still would not tell you if you had the "wrong" show
> due to lineup changes etc. I don't think there's a substitute for a
> sentient being checking the recording, or at least a Linux user.

Of course there are ways that the autodetect would fail. I'm not
trying to propose an infallible system. That can't happen. The motion
detection algorithm would, however, be useful in detecting those cases
where weather notifications or service interruptions prevented a
proper recording.