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| author | James Almer <jamrial@gmail.com> | 2015-02-16 16:53:31 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2015-02-16 17:47:47 -0300 |
| commit | 22596383f3b8c7cd8a06570957face3875a73d3b (patch) | |
| tree | d67cc94ce0cd0fbf3ec831d54513220efce6bf11 | |
| parent | 4bf3fab2811509a4f9ca932191e9bfa801ceeae2 (diff) | |
| download | ffmpeg-22596383f3b8c7cd8a06570957face3875a73d3b.tar.gz | |
avcodec/hevcdsp: optimize pixel comparison in sao_edge_filter
GCC 4.9.2 on a Core i5-4200U @ 1.60GHz, Linux x86_64
Before
715487 decicycles in sao_edge_filter_8, 262144 runs, 0 skips
After
672104 decicycles in sao_edge_filter_8, 262144 runs, 0 skips
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
| -rw-r--r-- | libavcodec/hevcdsp_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/hevcdsp_template.c b/libavcodec/hevcdsp_template.c index 9ce7bf2630..aeb142ca29 100644 --- a/libavcodec/hevcdsp_template.c +++ b/libavcodec/hevcdsp_template.c @@ -325,7 +325,7 @@ static void FUNC(sao_band_filter_0)(uint8_t *_dst, uint8_t *_src, } } -#define CMP(a, b) ((a) > (b) ? 1 : ((a) == (b) ? 0 : -1)) +#define CMP(a, b) ((a > b) - (a < b)) static void FUNC(sao_edge_filter)(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride_dst, int16_t *sao_offset_val, int eo, int width, int height) { |