// d3d10umddi.h

PFND3D11_1DDI_VIDEODECODEREXTENSION Pfnd3d111DdiVideodecoderextension;

HRESULT Pfnd3d111DdiVideodecoderextension(
  D3D10DDI_HDEVICE unnamedParam1,
  D3D11_1DDI_HDECODE unnamedParam2,
  const D3D11_1DDIARG_VIDEODECODEREXTENSION *unnamedParam3
)
{...}
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Windows Driver Kit DDI reference (nc-d3d10umddi-pfnd3d11_1ddi_videodecoderextension)

PFND3D11_1DDI_VIDEODECODEREXTENSION callback function

Description

Performs an extended function for DirectX Video Acceleration (DXVA) decoding. This method enables extensions to the basic DXVA decoder functionality.

Parameters

`unnamedParam1`

hDevice [in]

A handle to the display device (graphics context).

`unnamedParam2`

hDecoder [in]

A handle to the video decoder object that was created through a call to the CreateVideoDecoder function.

`unnamedParam3`

pExtension [in]

A pointer to a D3D11_1DDIARG_VIDEODECODEREXTENSION structure that contains data for the extended function.

Return value

VideoDecoderExtension returns one of the following values:

Return code	Description
S_OK	The extension was performed successfully.
D3DDDIERR_DEVICEREMOVED	The graphics adapter was removed.
E_INVALIDARG	Parameters were validated and determined to be incorrect.
E_OUTOFMEMORY	Memory was not available to complete the operation.

PFND3D11_1DDI_VIDEODECODEREXTENSION - NtDoc