Re: Re: Cheap Four Composite Video Capture

["Jason Lee" <jasonjlee@xxxxxxx>]

Depends really, for triggering warnings you don't really need full
speed.

I agree that full speed 4 cam would be nice, but those cards just
aren't
that cheap yet.

For example, there are certain cameras that I know should not be
triggered
unless I am here. If they trigger, somethings wrong.

I'm working with this card to run security software here, because the
card
is as bare as anything is ever going to get.

It still very much a WIP as every piece of software I have tried so far
is
either buggy or supports switching inputs very badly or just plain
rubbish
recycled from ms example code.

J

----- Original Message -----
From: "Kenneth Watt" <kennwatt@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Monday, July 15, 2002 4:19 PM
Subject: RE: [ukha_d] Re: Cheap Four Composite Video Capture


> I was starting to suss that out! ;)
>
> As usual I go the hard way, but even with another card the software
can
> only, it appears, capture from one source at a time in full frame
rate.
> :(
>
> Bummer!
>
> K.
>
> > -----Original Message-----
> > From: Jason Lee [mailto:jasonjlee@xxxxxxx]
> > Sent: 15 July 2002 16:13
> > To: ukha_d@xxxxxxx
> > Subject: Re: [ukha_d] Re: Cheap Four Composite Video Capture
> >
> > I have that card, and with one bt chip you cannot capture full
frame
> rate
> > from 4 sources...
> >
> > You can capture from a source, switch source and wait till stable
and
> > capture and so on.
> >
> > The settle time is the issue. With no settle time, you would
get
> 25/Num of
> > inputs.
> >
> > I believe some single bt8x8 cards have extra hardware to help
with the
> > input
> > switching settle time.
> >
> > To capture multiple sources simultaneausly you need either
mutiple bt
> > chips
> > or some other hardware..
> >
> > Thats the short version....
> >
> > J
> >
> > ----- Original Message -----
> > From: "Kenneth Watt" <kennwatt@xxxxxxx>
> > To: <ukha_d@xxxxxxx>
> > Sent: Monday, July 15, 2002 3:42 PM
> > Subject: RE: [ukha_d] Re: Cheap Four Composite Video Capture
> >
> >
> > > > Do you know what framerate and image size it supports?
I presume
> you
> > > > can capture all 4 inputs simulaneously?
> > >
> > > That's what I'm trying to find out at the moment, It all
seems to
> work
> > > fine with multiple resolutions, depths and whatnot I just
can't seem
> to
> > > get any more than one feed at a time.
> > >
> > > If anyone knows anything about this gear it's using the
Windows WDM
> > > Video and when that's loaded into Gotcha or whatever I can
switch
> input
> > > no problem but it doesn't see to like the idea of looking
at
> multiple
> > > sources. :(
> > >
> > > K.
> > >
> > >
> > >
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