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author | Martin Vignali <martin.vignali@gmail.com> | 2017-12-02 19:46:42 +0100 |
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committer | Martin Vignali <martin.vignali@gmail.com> | 2017-12-09 15:19:03 +0100 |
commit | 630967ef63d0f2a5cc12b06815af0ec6cb5c9d2a (patch) | |
tree | 6c85ea7d96b89876c994e4ded30a42da7149813b /libavcodec/lossless_videodsp.c | |
parent | 4353c3506742c9fecce4cf9f68cc6a7ab7ea05b1 (diff) |
avcodec/utvideodec : add SIMD (SSSE3 and AVX2) for gradient_pred
Diffstat (limited to 'libavcodec/lossless_videodsp.c')
-rw-r--r-- | libavcodec/lossless_videodsp.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libavcodec/lossless_videodsp.c b/libavcodec/lossless_videodsp.c index b5b96e6129..cff94c234d 100644 --- a/libavcodec/lossless_videodsp.c +++ b/libavcodec/lossless_videodsp.c @@ -98,6 +98,16 @@ static int add_left_pred_int16_c(uint16_t *dst, const uint16_t *src, unsigned ma return acc; } +static void add_gradient_pred_c(uint8_t *src, const ptrdiff_t stride, const ptrdiff_t width){ + int A, B, C, i; + + for (i = 0; i < width; i++) { + A = src[i - stride]; + B = src[i - (stride + 1)]; + C = src[i - 1]; + src[i] = (A - B + C + src[i]) & 0xFF; + } +} void ff_llviddsp_init(LLVidDSPContext *c) { @@ -106,6 +116,7 @@ void ff_llviddsp_init(LLVidDSPContext *c) c->add_left_pred = add_left_pred_c; c->add_left_pred_int16 = add_left_pred_int16_c; + c->add_gradient_pred = add_gradient_pred_c; if (ARCH_PPC) ff_llviddsp_init_ppc(c); |