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avcodec/hevcdsp: optimize pixel comparison in sao_edge_filter

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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>
This commit is contained in:
James Almer
2015-02-16 16:53:31 -03:00
parent 4bf3fab281
commit 22596383f3
1 changed files with 1 additions and 1 deletions
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2
libavcodec/hevcdsp_template.c
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@@ -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, 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) { int eo, int width, int height) {