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avfilter/unsharp: OpenCL unsharpen filter optimization: substitute N^2 filter computation with 2N+C

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i7-4770K luma 21% faster, chroma 18% faster A10-7850K luma 42% faster, chroma 37% faster on 1920x1080 res

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Alexey Titov
2015-02-10 12:21:05 -08:00
committed by Michael Niedermayer
parent ac494e5a66
commit a05a737316
3 changed files with 149 additions and 56 deletions
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4
libavfilter/unsharp.h
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@@ -41,6 +41,10 @@ typedef struct {
cl_kernel kernel_chroma;
cl_mem cl_luma_mask;
cl_mem cl_chroma_mask;
cl_mem cl_luma_mask_x;
cl_mem cl_chroma_mask_x;
cl_mem cl_luma_mask_y;
cl_mem cl_chroma_mask_y;
int in_plane_size[8];
int out_plane_size[8];
int plane_num;