the do / gr-peach-opencv-project

Opencv 3.1 project on GR-PEACH board

Fork of gr-peach-opencv-project by the do

Embed: (wiki syntax)

« Back to documentation index

Intel VA-API/OpenCL (CL-VA) interoperability
Functions

Intel VA-API/OpenCL (CL-VA) interoperability
[Core functionality]

This section describes Intel VA-API/OpenCL (CL-VA) interoperability. More...

Functions

void convertToVASurface (VADisplay display, InputArray src, VASurfaceID surface, Size size)
 Converts InputArray to VASurfaceID object.
void convertFromVASurface (VADisplay display, VASurfaceID surface, Size size, OutputArray dst)
 Converts VASurfaceID object to OutputArray.

Detailed Description

This section describes Intel VA-API/OpenCL (CL-VA) interoperability.

To enable CL-VA interoperability support, configure OpenCV using CMake with WITH_VA_INTEL=ON . Currently VA-API is supported on Linux only. You should also install Intel Media Server Studio (MSS) to use this feature. You may have to specify the path(s) to MSS components for cmake in environment variables: VA_INTEL_MSDK_ROOT for Media SDK (default is "/opt/intel/mediasdk"), and VA_INTEL_IOCL_ROOT for Intel OpenCL (default is "/opt/intel/opencl").

To use CL-VA interoperability you should first create VADisplay (libva), and then call initializeContextFromVA() function to create OpenCL context and set up interoperability.

Function Documentation

CV_EXPORTS void convertFromVASurface ( VADisplay  display,
VASurfaceID  surface,
Size  size,
OutputArray  dst 
)

Converts VASurfaceID object to OutputArray.

Parameters:
display- VADisplay object.
surface- source VASurfaceID object.
size- size of image represented by VASurfaceID object.
dst- destination OutputArray.

Definition at line 430 of file va_intel.cpp.

CV_EXPORTS void convertToVASurface ( VADisplay  display,
InputArray  src,
VASurfaceID  surface,
Size  size 
)

Converts InputArray to VASurfaceID object.

Parameters:
display- VADisplay object.
src- source InputArray.
surface- destination VASurfaceID object.
size- size of image represented by VASurfaceID object.

Definition at line 329 of file va_intel.cpp.

Generated on Tue Jul 12 2022 15:17:34 by  doxygen 1.7.2