DXVA_DeinterlaceCaps structure (dxva.h)

The DXVA_DeinterlaceCaps structure describes the driver capabilities for a deinterlace mode.

Syntax

typedef struct _DXVA_DeinterlaceCaps {
  DWORD                 Size;
  DWORD                 NumPreviousOutputFrames;
  DWORD                 InputPool;
  DWORD                 NumForwardRefSamples;
  DWORD                 NumBackwardRefSamples;
  D3DFORMAT             d3dOutputFormat;
  DXVA_VideoProcessCaps VideoProcessingCaps;
  DXVA_DeinterlaceTech  DeinterlaceTechnology;
} DXVA_DeinterlaceCaps, *LPDXVA_DeinterlaceCaps;

Members

Size

Indicates the size of this structure.

NumPreviousOutputFrames

Indicates the number of required frames previously output by the deinterlace algorithm. This member is used by recursive deinterlace algorithms.

InputPool

Indicates the memory pool from which the interlaced source surfaces should be allocated. For more information, see the D3DPOOL enumeration type in the Microsoft Window SDK documentation.

NumForwardRefSamples

Indicates the required number of forward reference samples for the defined deinterlace mode. These samples will be in future fields. This value is zero for bob and line blending, and can be several values for adaptive deinterlacing and frame-rate conversion.

NumBackwardRefSamples

Indicates the required backward reference samples for the defined deinterlace mode. The samples are in past fields. This value is zero for bob, 1 for line blending, and can be several values for adaptive deinterlacing and frame-rate conversion.

d3dOutputFormat

Indicates the Direct3D surface format of the output frames. Usually a deinterlace algorithm outputs frames in a surface format that matches the input sample format. This member ensures that the VMR or other video renderer will be able to supply the correct output frame surfaces to the deinterlace hardware.

Note that if the DXVA_Deinterlace_YUV2RGB enumerator is returned in the DXVA_VideoProcessCaps enumeration, the VMR will assume that valid output formats are specified by this member, in addition to a D3DFMT_X8R8G8B8 format.

VideoProcessingCaps

Specifies a DXVA_VideoProcessCaps enumeration indicating the operation that can be performed concurrently with the requested deinterlace.

DeinterlaceTechnology

Specifies a DXVA_DeinterlaceTech enumeration indicating the deinterlacing technology used by this deinterlacing device.

Remarks

The driver receives the DXVA_DeinterlaceCaps structure with the Size member assigned, assigns values to the remaining members, and returns DXVA_DeinterlaceCaps to the renderer.

Requirements

Requirement	Value
Header	dxva.h (include Dxva.h)

See also

DXVA_DeinterlaceTech

DXVA_VideoProcessCaps