D3DDDIARG_DXVAHD_VIDEOPROCESSBLTHD - NtDoc
Native API online documentation, based on the System Informer
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headers
// d3dumddi.h
typedef struct _D3DDDIARG_DXVAHD_VIDEOPROCESSBLTHD {
[in] HANDLE hVideoProcessor;
[in] DXVAHDDDI_SURFACE OutputSurface;
[in] UINT OutputFrame;
[in] UINT StreamCount;
[in] const DXVAHDDDI_STREAM_DATA *pStreams;
} D3DDDIARG_DXVAHD_VIDEOPROCESSBLTHD;
View the official Windows Driver Kit DDI referenceNo description available.
The D3DDDIARG_DXVAHD_VIDEOPROCESSBLTHD structure describes a Microsoft DirectX Video Acceleration (VA) video processing high definition operation to perform.
hVideoProcessor [in]A handle to the DirectX VA video processing device. The user-mode display driver returns this handle in a call to its CreateVideoProcessor function.
OutputSurface [in]A DXVAHDDDI_SURFACE structure that describes the output surface to which the video processor composes.
OutputFrame [in]A zero-based frame number of the composed output frames.
StreamCount [in]The number of streams to process. This number must be less than the number that the driver set in the MaxStreamStates member of the DXVAHDDDI_VPDEVCAPS structure.
pStreams [in]An array of DXVAHDDDI_STREAM_DATA structures that describe the input streams to process.
The output surface that the OutputSurface member specifies, which must be one of the following surface types:
If the frame that the OutputFrame member specifies remains unchanged at the next process time, the driver determines that the frame is unchanged (for example, paused) in the entire video processing and composition. Therefore, the driver can use cached data to optimize the frame.
The driver also uses the frame that the OutputFrame member specifies for tagging the command, which the driver submits to the graphics processing unit (GPU).
Input streams are indexed from zero to less than the number that the driver sets in the MaxStreamStates member of the DXVAHDDDI_VPDEVCAPS structure. Each stream has its own stream states associated with the stream index number. The driver processes each stream from zero index and blends on the destination surface one after another. For example, if a video stream is at index zero and a graphics stream is at index one, the driver blends the video stream on the background color and then blends the graphics stream over them.