Windows video capture application software, The epiphan usb device driver – Epiphan VGA2USB Pro User Manual
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11. About Epiphan frame grabbing technology
The video capture workstation
User Guide
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Windows video capture application software
The following software components operate on a video capture
workstation running Windows 2000, XP, or Vista:
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The Epiphan video capture application
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The Epiphan USB device driver
The Windows 2000, XP and Vista Epiphan USB device driver
receives images from an Epiphan Frame Grabber and delivers the
images to the Epiphan capture API and to DirectShow. Before
delivering the images the Epiphan USB device driver also
performs image adjustment to improve the quality of the image.
Image adjustments include setting the sampling phase, PLL
adjustments, and Horizontal shift. See
for more information about image
adjustments.
The USB device driver can also change the color depth of the
captured image before sending the image to the video API. For
example, if the Frame Grabber is capturing the frames at a color
depth that is different than that required by the video capture
application, the USB device driver converts the images to the
required color depth.