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The AVIStreamGetFrameOpen function prepares to decompress video frames from the specified video stream.
STDAPI_(PGETFRAME) AVIStreamGetFrameOpen(
PAVISTREAM pavi,
LPBITMAPINFOHEADER lpbiWanted
);
Parameters
pavi
Pointer to the video stream used as the video source.
lpbiWanted
Pointer to a structure that defines the desired video format. Specify NULL to use a default format. You can also specify AVIGETFRAMEF_BESTDISPLAYFMT to decode the frames to the best format for your display.
Return Values
Returns a GetFrame object that can be used with the AVIStreamGetFrame function. If the system cannot find a decompressor that can decompress the stream to the given format, or to any RGB format, the function returns NULL.
The argument pavi is a pointer to an IAVIStream interface.
Requirements
** Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
** Windows 95/98/Me:** Included in Windows 95 and later.
** Header:** Declared in Vfw.h.
** Library:** Use Vfw32.lib.
See Also
AVIFile Functions and Macros, AVIFile Functions, AVIStreamGetFrame