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AM_QueryRate Structure

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Microsoft DirectShow 9.0

AM_QueryRate Structure

The AM_QueryRate structure is used to query the decoder's maximum full-frame rate for forward and reverse playback.

Syntax

typedef struct {
    LONG lMaxForwardFullFrame;
    LONG lMaxReverseFullFrame;
} AM_QueryRate ;

Members

lMaxForwardFullFrame

Specifies the maximum forward full-frame rate, as rate x 10000.

lMaxReverseFullFrame

Specifies the maximum reverse full-frame rate, as rate x 10000.

Remarks

Rate is the inverse of speed. For example, if the playback speed is 2x, the rate is 1/2, so the Rate member is set to 5000. Reverse rates are negative.

Requirements

Include Dvdmedia.h.

See Also