PFND3DWDDM2_1DDI_VIDEOPROCESSORSETSTREAMHDRMETADATA callback function (d3d10umddi.h)

Article
02/22/2024

Implemented by the client driver to set stream HDR metadata to optimize video for display. This callback sets the maximum number of nits for which the content was authored.

Syntax

PFND3DWDDM2_1DDI_VIDEOPROCESSORSETSTREAMHDRMETADATA Pfnd3dwddm21DdiVideoprocessorsetstreamhdrmetadata;

void Pfnd3dwddm21DdiVideoprocessorsetstreamhdrmetadata(
  D3D10DDI_HDEVICE hDevice,
  D3D11_1DDI_HVIDEOPROCESSOR hVideoProcessor,
  UINT StreamIndex,
  D3DDDI_HDR_METADATA_TYPE Type,
  UINT Size,
  const VOID *pMetaData
)
{...}

Parameters

hDevice

A handle to the display device (graphics context).

hVideoProcessor

A handle to the video processor object.

StreamIndex

Indicates the input stream.

Type

Indicates the type of the HDR metadata provided.

Size

Indicates the type of the HDR metadata provided.

For D3DDDI_HDR_METADATA_TYPE_NONE, the size should be 0.
For D3DDDI_HDR_METADATA_TYPE_HDR10, the size is sizeof(D3DDDI_HDR_METADATA_HDR10).

pMetaData

Points to a structure containing the HDR metadata.

For D3DDDI_HDR_METADATA_TYPE_NONE, this should be NULL.
For D3DDDI_HDR_METADATA_TYPE_HDR10, this is a pointer to a DD3DDDI_HDR_METADATA_HDR10 structure.

Return value

None

Remarks

When processing an HDR stream, the driver may use this brightness information to tone map the video content to optimize it for the output display.

Requirements

Requirement	Value
Header	d3d10umddi.h