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D3D12DDI_VIDEO_ENCODER_AV1_SEGMENTATION_CONFIG_0095 structure (d3d12umddi.h)

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The D3D12DDI_VIDEO_ENCODER_AV1_SEGMENTATION_CONFIG_0095 structure contains configuration information for segmentation for an AV1 frame.

Syntax

typedef struct D3D12DDI_VIDEO_ENCODER_AV1_SEGMENTATION_CONFIG_0095 {
  UINT64                                       UpdateMap;
  UINT64                                       TemporalUpdate;
  UINT64                                       UpdateData;
  UINT64                                       NumSegments;
  D3D12DDI_VIDEO_ENCODER_AV1_SEGMENT_DATA_0095 SegmentsData[8];
} D3D12DDI_VIDEO_ENCODER_AV1_SEGMENTATION_CONFIG_0095;

Members

UpdateMap

A flag indicating whether the segmentation map should be updated for the current frame. If set, the encoder will use the new segmentation map provided in the D3D12DDI_VIDEO_ENCODER_AV1_SEGMENTATION_MAP_0095 structure.

TemporalUpdate

A flag indicating whether the segmentation map is updated based on temporal information. If set, segments may be predicted from previous frames.

UpdateData

A flag indicating whether the data for the segments should be updated. If set, the encoder will use the new data provided in the SegmentsData array.

NumSegments

When using D3D12DDI_VIDEO_ENCODER_AV1_PICTURE_CONTROL_0095_FLAG_ENABLE_FRAME_SEGMENTATION_AUTO and the driver writes it back on post encode values, a value of NumSegments = 0 indicated that segmentation_enabled must be 0 in the frame header. Otherwise, the API client codes segmentation_params() in the frame header accordingly with the other parameters in this structure.

When using D3D12DDI_VIDEO_ENCODER_AV1_PICTURE_CONTROL_0095_FLAG_ENABLE_FRAME_SEGMENTATION_CUSTOM, indicates the input number of segments.

SegmentsData[8]

Array of D3D12DDI_VIDEO_ENCODER_AV1_SEGMENT_DATA_0095 structures that contain the data for each segment. The number of elements in the array is specified by NumSegments.

Remarks

See D3D12 AV1 video encoding for more information.

Requirements

Requirement Value
Minimum supported client Windows 11, version 24H2 (WDDM 3.2)
Header d3d12umddi.h

See also

D3D12DDI_VIDEO_ENCODER_AV1_PICTURE_CONTROL_CODEC_DATA_0095

D3D12DDI_VIDEO_ENCODER_AV1_POST_ENCODE_VALUES_0095