AMVPDATAINFO structure (vptype.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 AMVPDATAINFO structure specifies the data-specific characteristics of the VP input stream.

Syntax

typedef struct _AMVPDATAINFO {
  DWORD       dwSize;
  DWORD       dwMicrosecondsPerField;
  AMVPDIMINFO amvpDimInfo;
  DWORD       dwPictAspectRatioX;
  DWORD       dwPictAspectRatioY;
  BOOL        bEnableDoubleClock;
  BOOL        bEnableVACT;
  BOOL        bDataIsInterlaced;
  LONG        lHalfLinesOdd;
  BOOL        bFieldPolarityInverted;
  DWORD       dwNumLinesInVREF;
  LONG        lHalfLinesEven;
  DWORD       dwReserved1;
} AMVPDATAINFO, *LPAMVPDATAINFO;

Members

dwSize

Size of the structure, in bytes.

dwMicrosecondsPerField

Time taken by each field.

amvpDimInfo

Dimensional information.

dwPictAspectRatioX

The X dimension of picture aspect ratio.

dwPictAspectRatioY

The Y dimension of picture aspect ratio.

bEnableDoubleClock

Video port should enable double clocking.

bEnableVACT

Video port should use an external VACT signal.

bDataIsInterlaced

Indicates that the signal is interlaced.

lHalfLinesOdd

Number of half lines in the odd field.

bFieldPolarityInverted

Video port should invert the field polarity.

dwNumLinesInVREF

Number of lines of data in VREF.

lHalfLinesEven

Number of half lines in the even field.

dwReserved1

Reserved for future use.

Requirements

See also

DirectShow Structures