Directx problems

[md]

Directx /amcap /graphedit problems



md0072 06-16



ETC 2





Hi all,
I have a basic xpe setup with minlogon and I've successfully installed
dx9.0b runtime. I have a logitech quickcam pro 4000 webcam and I've
created a component for it that works.

In graphedit and amcap, it is very slow to enumerate devices and
AddFilter. (minutes, not seconds)
Once the camera has been inserted, the capture works at 30fps no
problems.

has anyone seen this problem/ have a basic setup for video capture
that works properly without the delays? Maybe I'm missing some
components that are vital to this process? Are there some hardware
components that assist in this?

thanks
Mark
<also posted http://www.wecomasia.com/XP_Forum/view.asp?id=5043&vgoto=1>

 

[Bing.Chen]

Dear md,

Do you use the lastest version of amcap?

I met the same problem before, and the cause was too old version of
amcap.

 

[Roy Hodgkinson]

Mark,

I have not seen the slow response you mention with our implementation
of the Logitech 4000 on XP embedded with amcap. I needed component
"USB Digital Camera" along with the Logitech components created by
importing three files into CD -- lvcam.inf, lvcom.inf, lvsound.inf.
These files had "INCLUDE" dependencies that I'm sure you also resolved
on ks.inf, ksinfo.inf, kscaptur.inf, USB.inf, WDMA_USB.INF,
WDMAUDIO.INF. I found one error in KSCAPTUR.INF (8/29/2002) as it
existed in the XPE SP1 Toolkit repository and corrected that by adding
a comma as shown below:

[TopologyNodes]
.. . .
.. . .
;++++ XPE COMPONENT PATCH start ++++
;HKLM,%MediaCategories%\%GUID.Encoder%,Name,%Node.Encoder%
HKLM,%MediaCategories%\%GUID.Encoder%,Name,,%Node.Encoder%
;++++ XPE COMPONENT PATCH end ++++
HKLM,%MediaCategories%\%GUID.Multiplexer%,Display,1,00,00,00,00

I have also seen issues with DirectX performance that have been
resolved by lowering the Control Panel | Display | Settings | Advanced
| Troubleshoot | Hardware Acceleration setting.

HTH and good luck, Roy