KS_AMVPDATAINFO structure (ksmedia.h)
The KS_AMVPDATAINFO structure is used to describe the properties of a video port.
Syntax
typedef struct tagKS_AMVPDATAINFO {
DWORD dwSize;
DWORD dwMicrosecondsPerField;
KS_AMVPDIMINFO amvpDimInfo;
DWORD dwPictAspectRatioX;
DWORD dwPictAspectRatioY;
BOOL bEnableDoubleClock;
BOOL bEnableVACT;
BOOL bDataIsInterlaced;
LONG lHalfLinesOdd;
BOOL bFieldPolarityInverted;
DWORD dwNumLinesInVREF;
LONG lHalfLinesEven;
DWORD dwReserved1;
} KS_AMVPDATAINFO, *PKS_AMVPDATAINFO;
Members
dwSize
Specifies the size of the structure, in bytes.
dwMicrosecondsPerField
Specifies the time taken by each field, in microseconds (millionths of a second).
amvpDimInfo
Describes the dimensional information of the video port, such as field and VBI dimensions.
dwPictAspectRatioX
Indicates the picture aspect ratio in the horizontal dimension. For example, for a 16x9 aspect ratio this member would be 16.
dwPictAspectRatioY
Indicates the picture aspect ratio in the vertical dimension. For example, for a 4x3 aspect ratio this member would be 3.
bEnableDoubleClock
Specifies if the video port should enable double clocking.
bEnableVACT
Specifies if the video port should use an external VACT signal.
bDataIsInterlaced
Indicates that the signal is interlaced.
lHalfLinesOdd
Indicates the number of halflines in the odd field.
bFieldPolarityInverted
Indicates if the device inverts the field polarity by default.
dwNumLinesInVREF
Specifies the number of lines of data in VREF.
lHalfLinesEven
Indicates the number of halflines in the even field.
dwReserved1
Reserved for future use. Do not use.
Remarks
This structure is used by the KSPROPERTY_VPCONFIG_VPDATAINFO property.
Requirements
| Requirement | Value |
|---|---|
| Header | ksmedia.h (include Ksmedia.h) |