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E-Mediavision X-View XV-RGB-E1 User Manual page 41

Video capture cards
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Application Overview
The application displays the video source in a window; it has the following features:
Scales the video data to fit in the window
Save a single frame to a file in one of the following formats:
BMP, JPEG, GIF, TIFF, PNG
Print a single frame
Record and playback captured data using DirectShow
Maintain the aspect ratio of the displayed video data
Cropping
Display text over the video data (on-screen display)
Command line interface
Help file documenting all features
Note:
The supplied drivers and software require that you are using:
Windows® XP PRO/Server 2003/Server 2008, Windows®Vista or Windows® 7
CD / DVD ROM Drive
Using the card with other X-View products
The XV-SD8 captures video data and stores it in an on-board video buffer. This data is then copied using
bus master DMA to the host system for display, storage or streaming.
When a X-View graphics card is used, the XV-SD8 transfers the data directly to the graphics card
thereby increasing performance. The XV-SD8 sends the relevant portions of each captured image to
each display channel and instructs each channel to use its graphics engine to render the data. This fully
utilises the hardware and dramatically increases performance.
When a Direct3D compatible graphics card is used the data can be transferred direct to the graphics card
in a similar manner to the X-View graphics card with the same benefit of non-tearing captures.
When the video data is displayed on a non X-View graphics card, the XV-SD8 sends the data to
system memory or direct to the graphics card, dependant on the software used for display.
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