From: Paul Jakma (paul at domain clubi.ie)
Date: Wed 24 Oct 2001 - 01:05:33 IST
On Tue, 23 Oct 2001, Darragh Rogan wrote:
> That IS a clever idea
the boss suggested it a good while ago, though i suspect it was
perhaps originally an idea of mr. lyda's.
> - will you have a video capture card for each camera or what?
2 cards per machine, for 4 feeds in total. i dont think a PC could
reliably handle more than 2 cards.
we have more than 4 cameras though, i think around 9 or 10. however
the cameras go through a video multiplexer which allows you to do
things like display input of multiple cameras tiled onto 1 one
picture in various ways.
so we'll probably capture the 3 most important camera feeds as
'dedicated' (1 camera per video input), and tile the remaining 6 or 7
feeds onto the last remaining video input in some way, eg 4 of the
least important tiled into one quarter of the screen, the remaining 3
tiled into each of the remaining 3 quarters of the screen. ie:
| | |
| | |
| | | |
we'll see how that goes, and if we want we can always add another
cheap PC with another 2 capture cards + 3 big but cheap IDE disk,
capture another camera full screen, tile the remaining 5 or 6. and if
we want we can always, etc.. etc..
but it's kind of frightening that 2 normal looking desktop PCs can
have nearly 0.5TB of storage for so little money.
i remember seeing half a terabyte of storage in the Compaq server
room a few years ago: nearly half a rack full of drive cages stuffed
with expensive SCSI drives and lots of blinking lights.
now you can have the same with a few IDE drives for 1/10th the cost.
SCSI is dead. (sadly).
-- Paul Jakma paul at domain clubi.ie paul at domain jakma.org Key ID: 64A2FF6A Fortune: Space is to place as eternity is to time. -- Joseph Joubert
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