AVIStreamGetFrameOpen function (vfw.h)

The AVIStreamGetFrameOpen function prepares to decompress video frames from the specified video stream.

Syntax

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 value

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

See also

AVIFile Functions

AVIFile Functions and Macros