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Diffstat (limited to 'docs/howto/video-motion-estimation-howto.mdwn')
| -rw-r--r-- | docs/howto/video-motion-estimation-howto.mdwn | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/docs/howto/video-motion-estimation-howto.mdwn b/docs/howto/video-motion-estimation-howto.mdwn index d9edc9b9..8deaa61a 100644 --- a/docs/howto/video-motion-estimation-howto.mdwn +++ b/docs/howto/video-motion-estimation-howto.mdwn @@ -1,21 +1,15 @@ Video Motion Vector HowTo ========================== -Beignet now supports cl_intel_accelerator and part of cl_intel_motion_estimation, which -are Khronos official extensions. It provides a hardware acceleration of video motion +Beignet now supports cl_intel_accelerator and cl_intel_motion_estimation, which are +Khronos official extensions. It provides a hardware acceleration of video motion vector to users. -Supported hardware platform and limitation ------------------------------------------- +Supported hardware platform +--------------------------- -Only 3rd Generation Intel Core Processors is supported for vme now. And now we just -implement this part of cl_intel_motion_estimation for motion vector computation(residuals -can not be returned yet) on 3rd Generation Intel Core Processors: - mb_block_type = CL_ME_MB_TYPE_16x16_INTEL - subpixel_mode = CL_ME_SUBPIXEL_MODE_INTEGER_INTEL - search_path_type = CL_ME_SEARCH_PATH_RADIUS_2_2_INTEL / CL_ME_SEARCH_PATH_RADIUS_4_4_INTEL - / CL_ME_SEARCH_PATH_RADIUS_16_12_INTEL -We will fully support cl_intel_motion_estimation in the future. +Only 3rd Generation Intel Core Processors is supported for vme now. We will consider +to support more platforms if necessary. Steps ----- @@ -23,15 +17,13 @@ Steps In order to use video motion estimation provided by Beignet in your program, please follow the steps as below: -- Create a cl_accelerator_intel object using extension API clCreateAcceleratorINTEL, with - the following parameters: +- Create a cl_accelerator_intel object using extension API clCreateAcceleratorINTEL, like + this: _accelerator_type_intel accelerator_type = CL_ACCELERATOR_TYPE_MOTION_ESTIMATION_INTEL; cl_motion_estimation_desc_intel vmedesc = {CL_ME_MB_TYPE_16x16_INTEL, CL_ME_SUBPIXEL_MODE_INTEGER_INTEL, CL_ME_SAD_ADJUST_MODE_NONE_INTEL, - CL_ME_SEARCH_PATH_RADIUS_16_12_INTEL( - or CL_ME_SEARCH_PATH_RADIUS_2_2_INTEL - or CL_ME_SEARCH_PATH_RADIUS_4_4_INTEL) + CL_ME_SEARCH_PATH_RADIUS_16_12_INTEL }; - Invoke clCreateProgramWithBuiltInKernels to create a program object with built-in kernels |