DIBSIZE macro (amvideo.h)

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The DIBSIZE macro calculates the number of bytes required by a device-independent bitmap (DIB).

Syntax

void DIBSIZE(
   bi
);

Parameters

bi

Specifies a BITMAPINFOHEADER structure.

Return value

None

Remarks

The size of a DIB is calculated as stride * height, where stride is width * bits per pixel/8, rounded up to the nearest DWORD alignment; and height is the absolute value of biHeight.

Requirements

See also

Video and Image Functions