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| author | Clément Bœsch <u@pkh.me> | 2014-08-09 20:34:14 +0200 |
|---|---|---|
| committer | Clément Bœsch <u@pkh.me> | 2014-08-09 20:34:14 +0200 |
| commit | d7594beedee38211d82c9d30236e3fc22c4cad65 (patch) | |
| tree | 22a8aa2fcda3a26ff6b2e551f5c16522cb39d964 /libavfilter/vf_dctdnoiz.c | |
| parent | f75786f3bc8819545aa070f62d2ab3b579a8c781 (diff) | |
| download | ffmpeg-d7594beedee38211d82c9d30236e3fc22c4cad65.tar.gz | |
avfilter/dctdnoiz: remove a few indirections in idcts
No change in the generated asm.
Diffstat (limited to 'libavfilter/vf_dctdnoiz.c')
| -rw-r--r-- | libavfilter/vf_dctdnoiz.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/libavfilter/vf_dctdnoiz.c b/libavfilter/vf_dctdnoiz.c index 83a38ed9e3..fe1c5d78bf 100644 --- a/libavfilter/vf_dctdnoiz.c +++ b/libavfilter/vf_dctdnoiz.c @@ -151,10 +151,9 @@ static void av_always_inline idct8_1d(float *dst, const float *src, const float x14 = 0.353553390593274f * (x11 + x12); const float x15 = 0.353553390593274f * (x11 - x12); const float x16 = 0.5f*x13; - const float x08 = -x15; dst[0*dst_stridea] = (add ? dst[ 0*dst_stridea] : 0) + 0.25f * (x09 + x0b) + 0.353553390593274f*x0a; - dst[1*dst_stridea] = (add ? dst[ 1*dst_stridea] : 0) + 0.707106781186547f * (x0f - x08); - dst[2*dst_stridea] = (add ? dst[ 2*dst_stridea] : 0) + 0.707106781186547f * (x0f + x08); + dst[1*dst_stridea] = (add ? dst[ 1*dst_stridea] : 0) + 0.707106781186547f * (x0f + x15); + dst[2*dst_stridea] = (add ? dst[ 2*dst_stridea] : 0) + 0.707106781186547f * (x0f - x15); dst[3*dst_stridea] = (add ? dst[ 3*dst_stridea] : 0) + 0.707106781186547f * (x0e + x16); dst[4*dst_stridea] = (add ? dst[ 4*dst_stridea] : 0) + 0.707106781186547f * (x0e - x16); dst[5*dst_stridea] = (add ? dst[ 5*dst_stridea] : 0) + 0.707106781186547f * (x10 - x14); @@ -324,20 +323,17 @@ static void av_always_inline idct16_1d(float *dst, const float *src, const float x42 = 0.25f * (x3f + x40); const float x43 = 0.25f * (x3f - x40); const float x44 = 0.353553390593274f*x41; - const float x36 = -x43; - const float x10 = -x34; - const float x11 = -x3d; dst[ 0*dst_stridea] = (add ? dst[ 0*dst_stridea] : 0) + 0.176776695296637f * (x1d + x1f) + 0.25f*x1e; - dst[ 1*dst_stridea] = (add ? dst[ 1*dst_stridea] : 0) + 0.707106781186547f * (x29 - x11); - dst[ 2*dst_stridea] = (add ? dst[ 2*dst_stridea] : 0) + 0.707106781186547f * (x29 + x11); - dst[ 3*dst_stridea] = (add ? dst[ 3*dst_stridea] : 0) + 0.707106781186547f * (x23 + x36); - dst[ 4*dst_stridea] = (add ? dst[ 4*dst_stridea] : 0) + 0.707106781186547f * (x23 - x36); + dst[ 1*dst_stridea] = (add ? dst[ 1*dst_stridea] : 0) + 0.707106781186547f * (x29 + x3d); + dst[ 2*dst_stridea] = (add ? dst[ 2*dst_stridea] : 0) + 0.707106781186547f * (x29 - x3d); + dst[ 3*dst_stridea] = (add ? dst[ 3*dst_stridea] : 0) + 0.707106781186547f * (x23 - x43); + dst[ 4*dst_stridea] = (add ? dst[ 4*dst_stridea] : 0) + 0.707106781186547f * (x23 + x43); dst[ 5*dst_stridea] = (add ? dst[ 5*dst_stridea] : 0) + 0.707106781186547f * (x1b - x35); dst[ 6*dst_stridea] = (add ? dst[ 6*dst_stridea] : 0) + 0.707106781186547f * (x1b + x35); dst[ 7*dst_stridea] = (add ? dst[ 7*dst_stridea] : 0) + 0.707106781186547f * (x22 + x44); dst[ 8*dst_stridea] = (add ? dst[ 8*dst_stridea] : 0) + 0.707106781186547f * (x22 - x44); - dst[ 9*dst_stridea] = (add ? dst[ 9*dst_stridea] : 0) + 0.707106781186547f * (x1c - x10); - dst[10*dst_stridea] = (add ? dst[10*dst_stridea] : 0) + 0.707106781186547f * (x1c + x10); + dst[ 9*dst_stridea] = (add ? dst[ 9*dst_stridea] : 0) + 0.707106781186547f * (x1c + x34); + dst[10*dst_stridea] = (add ? dst[10*dst_stridea] : 0) + 0.707106781186547f * (x1c - x34); dst[11*dst_stridea] = (add ? dst[11*dst_stridea] : 0) + 0.707106781186547f * (x24 + x42); dst[12*dst_stridea] = (add ? dst[12*dst_stridea] : 0) + 0.707106781186547f * (x24 - x42); dst[13*dst_stridea] = (add ? dst[13*dst_stridea] : 0) + 0.707106781186547f * (x2b - x3b); |