DXVA_DeinterlaceBltEx32 structure

The DXVA_DeinterlaceBltEx structure describes parameters for deinterlace or frame-rate conversion, for combining the deinterlaced or frame-rate converted video with any supplied video substreams, and for writing the combined output to a destination surface. It is used for forwarding 32-bit DXVA_DeinterlaceBltEx calls on 64-bit drivers.

Syntax


typedef struct _DXVA_DeinterlaceBltEx32 {
  DWORD              Size;
  DXVA_AYUVsample2   BackgroundColor;
  RECT               rcTarget;
  REFERENCE_TIME     rtTarget;
  DWORD              NumSourceSurfaces;
  FLOAT              Alpha;
  DXVA_VideoSample32 Source[MAX_DEINTERLACE_SURFACES];
  DWORD              DestinationFormat;
  DWORD              DestinationFlags;
} DXVA_DeinterlaceBltEx32;

Members

Size

Specifies the size of the structure, in bytes.

BackgroundColor

Specifies a DXVA_AYUVsample2 structure that identifies background color and opacity level. For Windows Server 2003 with SP1 and Windows XP with SP2, the opacity level is not used and should be ignored by the driver.

rcTarget

Specifies a pointer to a RECT structure that describes the location within the destination surface to which the output image is written. Note that the output image is restricted to the pixels within the rcTarget rectangle--that is, every pixel within this rectangle must be written to; pixels outside this rectangle must not be modified.

rtTarget

Identifies the location of the output frame within the sequence of input frames. If only deinterlacing is performed, the target time should coincide with either the starting display time of a sample, as defined in the DXVA_VideoSample32 structure, or the midpoint between the starting display time and the ending display time. For more information, see Remarks.

If a frame-rate conversion is requested, the rtTarget time can be different from any of the rtStart times of the samples.

NumSourceSurfaces

Specifies the number of valid surfaces passed in the Source array.

Alpha

Specifies the planar-transparency value of the output image as it is written to the destination surface. For Windows Server 2003 with SP1 and Windows XP with SP2, this value is always 1.0F, which indicates that the overall image is opaque and that no alpha blending on the overall image is required.

Source

Specifies an array of DXVA_VideoSample32 structures that describe the input samples that are required for the deinterlacing, frame-rate conversion, and substream-compositing operations. For information about how input samples are arranged in this array, see Input Buffer Order.

DestinationFormat

Specifies format information for the destination surface. For Windows Server 2003 with SP1 and Windows XP with SP2, this member is set to 0.

DestinationFlags

Specifies a collection of flags that indicate changes in the current destination surface from the previous destination surface. This member is a bitwise-OR of one or more of the flags in the DXVA_DestinationFlags enumeration type.

Requirements

Version

This structure applies only to Windows Server 2003 with SP1 and later, and Windows XP with SP2 and later.Only compiles for a 64-bit version of the operating system.

Header

Dxva.h (include Dxva.h)

See also

DeinterlaceBltEx
DXVA_DeinterlaceCaps
DXVA_DestinationFlags
DXVA_VideoSample32

 

 

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