AMVABUFFERINFO structure

The AMVABUFFERINFO structure specifies a buffer for the IAMVideoAccelerator::Execute method.

Syntax

typedef struct _tag_AMVABUFFERINFO {
  DWORD dwTypeIndex;
  DWORD dwBufferIndex;
  DWORD dwDataOffset;
  DWORD dwDataSize;
} AMVABUFFERINFO, *LPAMVABUFFERINFO;

Members

dwTypeIndex

Type of buffer. The following buffer types are defined.

Value Meaning
DXVA_ALPHA_BLEND_COMBINATION_BUFFER
Alpha blend combination buffer.
DXVA_AYUV_BUFFER
AYUV alpha blending sample buffer.
DXVA_BITSTREAM_DATA_BUFFER
Raw bitstream data buffer.
DXVA_DCCMD_SURFACE_BUFFER
Display control command (DCCMD) data buffer.
DXVA_DEBLOCKING_CONTROL_BUFFER
Deblocking Filter control command buffer.
DXVA_DPXD_SURFACE_BUFFER
Decoded PXD (DPXD) alpha blending surface buffer.
DXVA_HIGHLIGHT_BUFFER
Highlight data buffers.
DXVA_IA44_SURFACE_BUFFER
IA44 alpha blending sample buffer.
DXVA_INVERSE_QUANTIZATION_MATRIX_BUFFER
Inverse quantization matrix buffer.
DXVA_MACROBLOCK_CONTROL_BUFFER
Macroblock control command buffer.
DXVA_PICTURE_DECODE_BUFFER
Picture parameters buffer.
DXVA_PICTURE_RESAMPLE_BUFFER
Alpha blend combination buffer.
DXVA_READ_BACK_BUFFER
Read-back command buffers containing commands to read macroblocks of the resulting picture back to the host.
DXVA_RESIDUAL_DIFFERENCE_BUFFER
Residual difference block data buffer.
DXVA_SLICE_CONTROL_BUFFER
Slice control buffer.
 

For complete descriptions of these buffer types, refer to the DirectX Video Acceleration 1.0 specification.

dwBufferIndex

Buffer index.

dwDataOffset

The offset of the relevant data from the beginning of the buffer.

dwDataSize

Size of the relevant data in the buffer, in bytes.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header amva.h (include Videoacc.h)

See also

DirectShow Structures

IAMVideoAccelerator::Execute