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Additional Information: |
NOTE: This driver will now automatically extract to your hard drive. It will only extract under Windows 95, Windows 98, and Windows NT. The extraction process will NOT work with any other operating system.
Released Version
Version 1.00 First Release
Summary of Changes
1.00
-(New) Initial release.
Installation instructions
When you install the Windows NT 4.0 Video Capture Diskette, you must also install the following device drivers/utility program:
- Windows NT 4.0 Display Driver V1.04 or later
- Windows NT ThinkPad Feature Program V3.50 or later
Note:
To support the suspend/resume feature using capture driver, ThinkPad Feature program must be installed as the pre-requisite software.
- If you use the earlier version of video display driver other than V1.04 or earlier, desktop screen will not be updated timely when the video capture application shows the captured image on the screen. It is recommended that you will update the Windows NT 4.0 display driver to version 1.04 or later.
Installing Video Capture Driver
Before installation, ensure that all applications which use the IBM MPEG-2 device are are closed. If you run Media Player, close this application.
Following are the steps to be carried out to install the driver from the installation package.
1. Extract the drivers to the hard disk.
2. Click on Start -> Settings -> Control Panel.
3. Double click on Multimedia.
4. Multimedia Properties window shows up. Click on Devices.
5. Click on Add. A window titled Add shows up. It shows a list of drivers. Select Unlisted or Updated Driver by double-clicking the mouse on the entry.
6. Click the mouse on OK button or hit the Enter key.
7. Install Driver window shows up. Type C:\DRIVERS\WNT\CAPTURE in the dialog box. to the Floppy Drive containing our installation diskette, in the window. Dialog box titled Add Unlisted or Updated Driver shows up the following device on the window:
9385/2 Video Capture
8. Click the mouse on OK button or hit the Enter key.
9. System does some processing to install the driver. It takes a few seconds and then the dialog box titled About Video Capture Driver shows up.
10. Click the mouse on OK button or hit the Enter key.
11. The window disappears and you are back in the Multimedia Properties window again.
12. Click the mouse on OK button and you are back in the Control Panel window.
13. The installation procedure is over.
How to verify the installation
Please carry out the following steps for verifying that installation has taken place correctly.
1. Click on Start -> Settings -> Control Panel.
2. Double click on Devices. A window titled Devices shows up.
3. Look for an entry by name Cyber under the device column in this window.
4. This entry corresponding to Cyber should show the Status as Started and Startup as System.
5. Click the mouse on Close button or hit the Enter key.
6. Click on Start -> Settings -> Control Panel.
7. Double click the mouse on Multimedia icon in the Control Panel window.
8. Multimedia Properties window shows up. Click on Devices.
9. Select the + next to Video Capture Devices.
10. Look for an entry by the name 9385/2 Video Capture.
11. Click the mouse on OK button and you are back in the Control Panel window.
User instructions
The 9385/2 Video Capture driver can be used with any Video Capture application, for example, VIDCAP32.EXE which is supplied with the Win32 SDK.
Known Issues and Helpful Hints
1. Windows NT color depth changes will affect the captured data (preview, overlay). The user should close the video capture application before changing color depth, and then restart the application.
2. The driver has power management support, by being a client of Thinkpad Power Management Port Driver. This requires the user to have installed Thinkpad Features. In its absence, the driver will not function properly if the hardware changes power states. If the captured image does not appear proper, then the user has to restart the capture application.
3. Before running a capture application that uses this driver, the user should close any application (for eg. Media Player) which uses the IBM MPEG-2 driver.
Also if a capture application is running, the user should not attempt to start an application which uses the IBM MPEG-2 driver, or any other application which uses the capture driver.
4. For preview mode, the user is given a choice of image dimensions based on the available space in video memory. For overlay mode, the user can choose from all sizes (40x30 to 640x480).
5. Following are known problems when using Vidcap32.exe as the capture application:
a) The user sizes the capture display window and sets capture format such that the scroll bars are visible. Then the user sets the scroll bar(s) to any position other than top on vertical scroll bar and left on horizontal, and then resizes the display window or changes the capture format such that scroll bars are no longer visible. The captured image now appears split either vertically or horizontally. This is because Vidcap32.exe continues to inform the driver about the scroll bar(s) settings though they are no longer visible. To fix this, the user has to resize display window or change capture format such that scroll bar(s) are visible again, and then reset the scroll bar(s).
b) The user selects a size for overlay which is greater than the maximum supported for preview. The driver displays a dialog box informing the user that the size selected should not be used for preview. If the user changes to preview mode with the same size, the image displayed could be distorted, and the cursor may be corrupted. To fix this, the user has to select a valid size using the Video Format dialog box. To restore the cursor, the user has to drag to the bottom of the screen. Vidcap32.exe assumes that preview & overlay are both supported for the same sizes. So if the application is in overlay mode, and the user selects preview mode without selecting a valid size, the driver is informed that it should preview to the same size. But since an image of this size cannot be captured in the frame buffer, the captured image looks distorted and the cursor image is also affected. This problem is also present when using Digital Video Producer.
6. This driver does not provide the YUV422 video codec for preview/capture mode application. If application needs to use YUV video compression CODE, install the YUV code which is available in Windows NT 4.0 CD-ROM. YUV422 codec is available in \Drvlib\Capture\I386 directory. Install this codec on Multimedia Properties/ Control Panel.
7. Overlay mode is not supported for the following resolution, color depth & refresh rate combinations.
- 1024 X 768 X 256 colors, 75/87Hz
- 1024 X 768 X 64K colors, 87Hz
- 1280 X 1024 X 256 colors , 60/87Hz
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