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VMRFrequency Structure

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Microsoft DirectShow 9.0

VMRFrequency Structure

This topic applies to Windows XP Service Pack 1 or later.

The VMRFrequency structure describes the frequency of a video stream. Frequencies are described as ratios. For example, the NTSC frame rate of 29.97 fps is expressed as 30,000:1001.

Syntax

typedef struct _VMRFrequency {
    DWORD dwNumerator;
    DWORD dwDenominator;
} VMRFrequency;

Members

dwNumerator

Numerator of the frequency ratio.

dwDenominator

Denominator of the frequency ratio.

Requirements

Header: Dshow.h Requires Microsoft® Windows® XP Service Pack 1.

See Also