Unable to Use an Analog Video Camera in NetMeeting (309271)
The information in this article applies to:
- Microsoft NetMeeting 3.0 for Windows 98 Second Edition
- Microsoft NetMeeting 3.01 for Windows 98 Second Edition
- Microsoft NetMeeting 3.01 for Windows Millennium Edition
- Microsoft NetMeeting 3.01 for Windows 2000
This article was previously published under Q309271 SYMPTOMS
When you start NetMeeting and you want to use video conferencing, your analog video camera may not be available. However, you can still use a digital video camera or a Universal Serial Bus (USB) camera as a capture device, and these camera types remain available in NetMeeting.
CAUSE
This issue can occur if the driver for your video capture adapter does not support KS_ANALOGVIDEO_NONE. NetMeeting 2.x used Windows Driver Model (WDM) Video for Windows mapping features for video capture. In newer versions of NetMeeting, the mapping functionality was removed in favor of WDM and Video for Windows capture support. In the WDM driver case, the hardware needs to support KS_ANALOGVIDEO_NONE on the device's capture pin to be able to use video in NetMeeting.
MORE INFORMATION
NetMeeting 3.0 is designed to communicate directly to WDM, a video hardware interface. Devices are a collection of "pins". Pins can pass data from the device to whatever is on the other end of the pin. Because there are many types of WDM devices (video, audio, disk drive, MIDI, and so on), and each one passes different data through their pins, the WDM pins have types that are associated with them.
Video (TV, VCR, DVD, and so on) is in different formats in Europe and the United States. The United States use NTSC_M, and Europe uses PAL. An NTSC WDM pin should have "AnalogVideo_NTSC" as it's type, and a PAL WDM pin should have "AnalogVideo_PAL" as its type. Instead of looking for pins of these types, NetMeeting 3.X was looking for a pin of type KS_ANALOGVIDEO_NONE.
| Modification Type: | Major | Last Reviewed: | 12/5/2003 |
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| Keywords: | kbenv kbprb KB309271 |
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