Nadav: Setting up a USB Camera for CM-T3x moved to WinCE: Setting up a USB Camera

2011-08-30T14:02:46Z

Setting up a USB Camera for CM-T3x moved to WinCE: Setting up a USB Camera

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== Overview ==
This document explains how to set up a USB camera for the CM-T3x. This solution is based on a USB camera driver provided by Microsoft.
The driver was tested using the JDEPC-OV03-B web camera, but it should work for any other USB web camera as well.

== Adding the USB camera driver to the image ==
# Download the driver from: [http://www.microsoft.com/downloads/en/details.aspx?FamilyID=2ef087c0-a4ae-42cc-abd0-c466787c11f2 USB cam driver]
# Install the downloaded driver.
# Edit the file WINCE600\PUBLIC\ThirdParty\Catalog\USBCam\Driver\usbcam.reg .
# Replace <pre>[$(PCI_BUS_ROOT)\Template\ehci]</pre> with <pre>[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\PCI\Template\ehci]</pre>
# In platform builder, go to Catalog Items View, select the following components and run "clean sysgen":
<blockquote>
 
<li/> SYSGEN_USB 
<li/>SYSGEN_DSHOW_CAPTURE 
<li/>SYSGEN_DSHOW_DMO 
<li/> SYSGEN_DSHOW_VIDREND 
<li/>SYSGEN_DCOM_STG 
<li/>SYSGEN_IMAGING 
<li/>SYSGEN_IMAGING_BMP_DECODE 
<li/>SYSGEN_IMAGING_BMP_ENCCODE 
<li/>SYSGEN_IMAGING_JPG_ENCCODE 
<li/>SYSGEN_IMAGING_JPG_DECODE 
<li/>SYSGEN_DCOM
</blockquote>


== Compiling the camera application ==
The test application source code is located in WINCE600\PRIVATE\TEST\MULTIMEDIA\DIRECTX\DSHOW\CAMERA\CAMERAAPP. This section explains how to build it.
<blockquote> 
<li/> Select “Open release Directory in Build Window” from the workspace Build Menu. 
<li/> Change your directory to 
WINCE600\PRIVATE\TEST\MULTIMEDIA\DIRECTX\DSHOW\COMMON\LIBS 
<li/> Type the command ‘build -c’ and wait for the build to finish. 
<li/> Change the directory to 
WINCE600\PRIVATE\TEST\MULTIMEDIA\DIRECTX\DSHOW\CAMERA
 <li/> Type the command ‘build -c’. It will build those directories, but finish of with the ‘kato.lib’ non availability error. 
<li/> Now Change the directory to 
WINCE600\PRIVATE\TEST\MULTIMEDIA\DIRECTX\DSHOW\CAMERA\CAMERAAPP\ 
<li/> Type the command ‘build -c’ 
<li/> The “CameraDshowApp.exe” application binary is generated in the Release directory of the OSDesign. 
 
</blockquote>

== Running the Camera test app ==
# Copy the previously compiled CameraDshowApp.exe to the target.
# Make sure the USB cam is plugged into the P17 connector of the SB_T3x.
# Run CameraDshowApp.exe.
# "CAM1:" should be selected as the driver.
## For still pictures only, select the following:
##: [[Image:CM_T35_Cam_APP_Still_Only_Settings.jpg]]
## For still pictures and video capture select every item except AudioCapture and Audio encoder.
##: [[Image:CM_T35_Cam_APP_Video_Capture_Settings.jpg]]
# Create a folder in which you want your files to be saved, set the filename in the application accordingly, and press "OK". 
#: (The default is in /release where your files will be named test0.jpg .. testN.jpg and test0.asf .. testN.asf as you can see marked in a red square and /release still needs to be created by the user) 
#: [[Image:CM_T35_Cam_APP_Files_Location_Settings.jpg]] 
# To take a still picture snapshot, press "Still".
# For video capture, press "Start Cap" (to stop or pause it press "Stop Cap" or "Pause Cap" for the latter).
#: (Notice that once you press "Stop Cap" it will take some time to finish processing the data and produce your filename.asf)
#: [[Image:CM_T35_Cam_APP_Menu.jpg]]

== Modifying the camera resolution ==
# To modify the resolution, go to WINCE600\PUBLIC\ThirdParty\Catalog\USBCam\Driver\ and edit usbcam.reg. 
# Modify the following registry values
<pre>
[HKEY_LOCAL_MACHINE\Drivers\USB\ClientDrivers\Video_Class]
"PreferredWidth"=dword:B0;176
"PreferredHeight"=dword:90;144
</pre>
[[Category:Windows CE|Camera Setup]]
[[Category:CM-T3530|WinCE: Camera Setup]]

WinCE: Setting up a USB Camera - Revision history

Nadav: Setting up a USB Camera for CM-T3x moved to WinCE: Setting up a USB Camera