D3D12_FEATURE_DATA_VIDEO_DECODE_HISTOGRAM structure (d3d12video.h)

Provides data for calls to ID3D12VideoDevice::CheckFeatureSupport when the feature specified is D3D12_FEATURE_VIDEO_DECODE_HISTOGRAM. Retrieves the histogram capabilities for the specified decoder configuration.

Syntax

typedef struct D3D12_FEATURE_DATA_VIDEO_DECODE_HISTOGRAM {
  UINT                                         NodeIndex;
  GUID                                         DecodeProfile;
  UINT                                         Width;
  UINT                                         Height;
  DXGI_FORMAT                                  DecodeFormat;
  D3D12_VIDEO_DECODE_HISTOGRAM_COMPONENT_FLAGS Components;
  UINT                                         BinCount;
  UINT                                         CounterBitDepth;
} D3D12_FEATURE_DATA_VIDEO_DECODE_HISTOGRAM;

Members

NodeIndex

For single GPU operation, set this to zero. If there are multiple GPU nodes, set a bit to identify the node (the device's physical adapter) to which the command queue applies. Each bit in the mask corresponds to a single node. Only 1 bit may be set.

DecodeProfile

A GUID representing the decode profile for which histogram capabilities will be queried. Get a list of available profile GUIDs by calling ID3D12VideoDevice::CheckFeatureSupport when the feature specified is D3D12_FEATURE_VIDEO_DECODE_PROFILES.

Width

The decode width of the source stream.

Height

The decode height of the source stream.

DecodeFormat

The DXGI_FORMAT representing the decode format.

Components

A bitwise OR combination of values from the D3D12_VIDEO_DECODE_HISTOGRAM_COMPONENT_FLAGS enumeration specifying the components of a DXGI_FORMAT for which histogram support will be queried.

BinCount

The number of per component bins supported. This value must be greater than or equal to 64 and must be a power of 2 (e.g. 64, 128, 256, 512...).

CounterBitDepth

The bit depth of the bin counter. The counter is always stored in a 32-bit value and therefore this value must specify 32 bits or less. The counter is stored in the lower bits of the 32-bit storage. The upper bits are set to zero. If the bin count exceeds this bit depth, the value is set to the maximum counter value. Valid values for CounterBitDepth are 16, 24, and 32.

Requirements

Requirement	Value
Header	d3d12video.h