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GetBitCount function

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetBitCount function returns the number of bits per pixel used by a specified video subtype. This function is valid for uncompressed RGB subtypes only.

Syntax

WORD GetBitCount(
   const GUID *pSubtype
);

Parameters

pSubtype

Pointer to a video subtype GUID.

Return value

Returns the number of bits per pixel for this subtype, or the value USHRT_MAX if the subtype is not recognized.

Requirements

Requirement Value
Header
Wxutil.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

Video and Image Functions