William Chops Westfield wrote:
> I'd like to find software (and hardware, but I assume that part
> is relatively easy) for a basically stand-alone, unattended box
> that could connect to the TV studio "output", sense when there
> is active/good video, and record that to a time-stamped file that
> would be accessible on the school computer network (I assume the
> "network accessible" part is reasonably easy as well.)  Momentary
> glitches should probably not cause a new file to be created, but
> perhaps there should be a maximum length allowed?  The automatic
> sensing of good signal and automatic recording to timestamped file
> is the important part.

If the broadcast is every morning, isn't it likely to be at the same time
every day? In which case a chron job to start and stop recording
should be sufficient.

What is on the channel when they are not broadcasting?
It's relatively easy to sense the presence of video. It is not as simple
to decide it's 'good' although the usual motion sensing security
software would probably be sufficient, and it WOULD automatically
create files for 'alarm' conditions resulting from detected motion.

Robert

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