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Creating Video Digitizer Components

Video digitizer components are the most convenient mechanism for presenting new sources of video data to QuickTime. For example, if you are developing special-purpose video hardware that digitizes video images from a previously unsupported source device, you should create a video digitizer component so that applications or sequence grabber components can obtain data from your device.

Video digitizer components support a rich functional interface that can accommodate devices with quite varied capabilities. To relieve you from having to support irrelevant functions, Apple has made several video digitizer functions optional. For information about the functions your digitizer component must support, see “Required Functions.” For information about other functions, see “Optional Functions.”

Contents:

Required Functions
Optional Functions
Function Request Codes

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