multiple cameras =>pci card=>jt.dx.grab=>HELP!

Sep 30, 2006 at 8:55pm

multiple cameras =>pci card=>jt.dx.grab=>HELP!

i’ve noticed discussion of this topic recently, but have been unable to work through this problem as of yet with the advice already posted.

i have 12 security cameras attached to a windowsxp machine through pci cards (4 channels per card, directx mpeg4). the software bundled with the cards allows me to preview/record all cameras. i assume that all drivers are properly installed because of this. trying to view through jt.dx.grab object example does not work.

error messages include:
could not create class enumerator for requested type
could not add capture filter to graph
could not create video channel -9405
error opening device for grab

and software crashes

as a newbie, are there obvious steps i need to take that i’m overlooking or other possible solutions?

how do i get jitter to recognize the existence of these cameras?

appreciate any thoughts or insights
steve

#27901
Oct 2, 2006 at 9:12am

Hi Steve,

First off you should make sure that windows recognizes each camera input
(thus 4 per card) as a separate device. If that is not the case u might have
trouble connecting a jit.dx.grab to all twelve of them.

What do you get when you try ‘getvdevlist’ on the jit.dx.grab object? You
can try this by checking out the help patch of the jit.dx.grab object.

And what cards are they exactly?

On 9/30/06, steve wrote:
>
>
> i’ve noticed discussion of this topic recently, but have been unable to
> work through this problem as of yet with the advice already posted.
>
> i have 12 security cameras attached to a windowsxp machine through pci
> cards (4 channels per card, directx mpeg4). the software bundled with the
> cards allows me to preview/record all cameras. i assume that all drivers are
> properly installed because of this. trying to view through jt.dx.grabobject example does not work.
>
> error messages include:
> could not create class enumerator for requested type
> could not add capture filter to graph
> could not create video channel -9405
> error opening device for grab
>
> and software crashes
>
> as a newbie, are there obvious steps i need to take that i’m overlooking
> or other possible solutions?
>
> how do i get jitter to recognize the existence of these cameras?
>
> appreciate any thoughts or insights
> steve
>

#84963
Oct 2, 2006 at 1:48pm

yes please, which card is it exactly. i have a project coming and i
would like to know if this is a valid multicapture path.
if all else fails, i had success with using 4 cheapo bt787 cards. if
you have the pci space.

2006/10/2, david vandenbogaerde :
> Hi Steve,
>
> First off you should make sure that windows recognizes each camera input
> (thus 4 per card) as a separate device. If that is not the case u might have
> trouble connecting a jit.dx.grab to all twelve of them.
>
> What do you get when you try ‘getvdevlist’ on the jit.dx.grab object? You
> can try this by checking out the help patch of the jit.dx.grab object.
>
> And what cards are they exactly?
>
>
>
> On 9/30/06, steve wrote:
> >
> > i’ve noticed discussion of this topic recently, but have been unable to
> work through this problem as of yet with the advice already posted.
> >
> > i have 12 security cameras attached to a windowsxp machine through pci
> cards (4 channels per card, directx mpeg4). the software bundled with the
> cards allows me to preview/record all cameras. i assume that all drivers are
> properly installed because of this. trying to view through jt.dx.grab object
> example does not work.
> >
> > error messages include:
> > could not create class enumerator for requested type
> > could not add capture filter to graph
> > could not create video channel -9405
> > error opening device for grab
> >
> > and software crashes
> >
> > as a newbie, are there obvious steps i need to take that i’m overlooking
> or other possible solutions?
> >
> > how do i get jitter to recognize the existence of these cameras?
> >
> > appreciate any thoughts or insights
> > steve
> >
>
>
>
>
>

#84964
Oct 3, 2006 at 4:13am

thank you for taking the time to help me out.

the cards are the 4-channel dvr/pci from q-see (limited, but cheap)

sending the getdevlist within the help patch does not bring up any list of available cameras.

wondering, if this message is specifically looking for hardware on usb/ieee1394 bus? can you point/send this message elsewhere? or is it very general and if it doen’t list it, game over?

also:
>First off you should make sure that windows recognizes each camera >input(thus 4 per card) as a separate device.

not sure how to do this. the software with the card allows me to preview all attached cameras and record these feeds to disk. how it handles this, i’m (obviously) unsure.

reason for me going down this path with jitter is to deal with live feed and process in real time

hope it’s possible.

thanks again
steve

#84965
Oct 3, 2006 at 5:56am

Hi Steve,

> sending the getdevlist within the help patch does not bring up any list of
available cameras.

> wondering, if this message is specifically looking for hardware on
usb/ieee1394 bus? can you point/send this message elsewhere? or is it very
general and if it doen’t list it, game over?

The message actually works for any DirectX compatible device, as long as I
use it. So the problem is very probably that you did not have the driver for
directX be installed properly. Check with your hardware manufactuarer
for it.

William

#84966
Oct 3, 2006 at 10:19am

I would also try contacting the manufacturer of your pci cards and ask them
for a directx wmi driver for your capture cards. As long as you’re not
seeing them listed in your ‘control panel>system>hardware>device manager’ as
capturing devices i’m afraid you might have trouble connecting to them. So
it really is a software issue.
And its not max’s or jitter’s problem, but a driver issue.

You might also try out the jit.qt.grab object, maybe that gives more result;
however, i’m running winxp also and i had less trouble using jit.dx.grabthan
jit.qt.grab, since the quicktime object requires WinVDIG and a full
installation of quicktime. If you’re not sure how to get jit.qt.grab to
work, just search the forum for it and you’ll find more than plenty results.

As a summary i’d like to conclude with the fact that you will definitely
need the devices (capture card inputs) listed in your device list using
getvdevlist, before you can go on.

cheers
d

On 10/3/06, William Wong < williamshome@gmail.com> wrote:
>
> Hi Steve,
>
> > sending the getdevlist within the help patch does not bring up any list
> of available cameras.
>
> > wondering, if this message is specifically looking for hardware on
> usb/ieee1394 bus? can you point/send this message elsewhere? or is it very
> general and if it doen’t list it, game over?
>
> The message actually works for any DirectX compatible device, as long as I
> use it. So the problem is very probably that you did not have the driver for
> directX be installed properly. Check with your hardware manufactuarer
> for it.
>
> William
>
>
>
>

#84967
Oct 21, 2006 at 1:05pm

#84968
Oct 28, 2006 at 6:20pm

#84969

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