write frame grabber crossbar ?

jonathan dumaresq

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Oct 20, 2003, 2:41:49 PM10/20/03

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hi all,

I have to write a crossbar for my frame grabber and i don't know where to
start !. I have all I need to control the frame grabber and I have a wdm
driver for it but i don't have the crossbar. so This is why I want to write
one for make it work. I have 6 inputs and 3 s-video input.

sample or any doc on this. I'm very new to directx programming so if you
have any doc or sample it will very appreciate.

thanx

JOnathan Dumaresq

The March Hare (MVP)

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Oct 20, 2003, 2:58:59 PM10/20/03

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If you are new to DX programming, I recommend the Mark Pesce DirectShow
book. It won't explain exactly what you want to do (which I haven't done
either so can't offer specific advise), but it will get you well ground in
the basics for DS.

jonathan dumaresq

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Oct 20, 2003, 3:10:02 PM10/20/03

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ok thanx

I just see something. under Video capture sources, I see my frame grabber
but i don't see any pins on it. ??? And under file name i see a QCAP.DLL
instead of a .ax file ??

hope somebody can help me !

jonathan
"jonathan dumaresq" <jdum...@hotmail.com> a écrit dans le message de
news:N%Vkb.7995$V11....@charlie.risq.qc.ca...

Peter Feldbaumer

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Oct 21, 2003, 3:28:11 AM10/21/03

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jonathan dumaresq wrote:
> I just see something. under Video capture sources, I see my frame
> grabber but i don't see any pins on it. ??? And under file name i see
> a QCAP.DLL instead of a .ax file ??

to "wrap" a dx-filter in a dll instead of an .ax-file is perfectly "legal"
(since .ax files are nothing else but .dll-files with a different
extension...) - so this won't indicate anything... Besides that qcap.dll is
a part of dx/ds, that wraps wdm-capture drivers (if i'm not completely
wrong).

Somehow I have the feeling that you/your company didn't develop the
capture-device (frame-grabber)?
If not, I'd strongly suggest that there_must_ already be some interface to
configure the input/output-pins of the capture-filter! Just have a look at
the docs of the card (or contact tech-support of the manufacturer).

To develop a crossbar you won't get anywhere without "deep" knowledge about
the hardware of this frame-grabber, besides that crossbars are implemented
as wdm-drivers (so would need to get into driver-development, not into
dshow-development)...

--
Peter Feldbaumer
p dot feldbaumer at utanet dot at

jonathan dumaresq

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Oct 21, 2003, 9:18:22 AM10/21/03

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"Peter Feldbaumer" <nob...@nowhere.in.the.net> a écrit dans le message de
news:ekZNjT6l...@TK2MSFTNGP09.phx.gbl...

> jonathan dumaresq wrote:
> > I just see something. under Video capture sources, I see my frame
> > grabber but i don't see any pins on it. ??? And under file name i see
> > a QCAP.DLL instead of a .ax file ??
>
> to "wrap" a dx-filter in a dll instead of an .ax-file is perfectly "legal"
> (since .ax files are nothing else but .dll-files with a different
> extension...) - so this won't indicate anything... Besides that qcap.dll
is
> a part of dx/ds, that wraps wdm-capture drivers (if i'm not completely
> wrong).
>
> Somehow I have the feeling that you/your company didn't develop the
> capture-device (frame-grabber)?

no we don't

> If not, I'd strongly suggest that there_must_ already be some interface to
> configure the input/output-pins of the capture-filter!

yes I have all the api to configure inputs and outputs, set it in overlay
mode (preview) ,capture mode etc..

Just have a look at
> the docs of the card (or contact tech-support of the manufacturer).
>
> To develop a crossbar you won't get anywhere without "deep" knowledge
about
> the hardware of this frame-grabber, besides that crossbars are implemented
> as wdm-drivers (so would need to get into driver-development, not into
> dshow-development)...

how can I use the frame grabber with ds ? is there a possibility to use it
with ds ?

regards

Jonathan Dumaresq

jonathan dumaresq

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Oct 21, 2003, 10:06:05 AM10/21/03

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here the answer of RTD:

Yes, it works with DirectX. The driver also includes a set of API's to hide
the DirectX API's, and make development a little easier.

http://www.rtd.com/NEW_manuals/software/utilitymodules/CM7326_driver_manual.pdf

Sincerely,
Myron Semack
Manager Software Engineering

RTD Embedded Technologies
103 Innovation Blvd.
State College, PA 16803
Phone: 814-234-8087
Fax: 814-234-5218
E-mail: mse...@rtd.com
Web: www.rtd.com

-----Original Message-----
From: jonathan dumaresq [mailto:jdum...@cetso.com]
Sent: Monday, October 20, 2003 3:15 PM
To: techsupport
Subject: frame grabber and directx driver.

hi i just bought from you a framegrabber CM7326 and I wonder if it is
possible to use it with directx ?

I see in the graph filter for video capture source the RTDUSA frame Grabber
but I don't see the crossbar and the pin on the dive to connect between
filters.

regards

Jonathan Dumaresq

"jonathan dumaresq" <jdum...@hotmail.com> a écrit dans le message de
news:N%Vkb.7995$V11....@charlie.risq.qc.ca...

Peter Feldbaumer

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Oct 21, 2003, 11:16:24 AM10/21/03

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jonathan dumaresq wrote:
> here the answer of RTD:
>
> Yes, it works with DirectX. The driver also includes a set of API's
> to hide the DirectX API's, and make development a little easier.
>
>
http://www.rtd.com/NEW_manuals/software/utilitymodules/CM7326_driver_manual.pdf

... as you can see yourself, they don't mention dx/dshow anywhere in this
document...
You will have to ask them a little more!

jonathan dumaresq

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Oct 23, 2003, 8:34:20 AM10/23/03

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here the new answer from RTD

Honestly, I'm not sure if DirectShow will work. We don't have anything like
that built into the driver.

Basically, the framegrabber just dumps the captured framed to a spot in
memory via DMA.

If DirectShow can grab frames from a memory address, it will work.

merci

Jonathan Dumaresq

"Peter Feldbaumer" <nob...@nowhere.in.the.net> a écrit dans le message de
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