diff options
| author | Ronald S. Bultje <rsbultje@gmail.com> | 2015-07-11 19:55:58 -0400 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-07-13 02:23:30 +0200 |
| commit | a1f48480497bb462c5d1d589ae393335f50b06e0 (patch) | |
| tree | ebfb986172a4e43ec451d3c26415f0fee69d7ad3 /libavfilter/vf_ssim.c | |
| parent | 4496ccc724689c796db6a9936b53349d089db982 (diff) | |
ssim: refactor a weird double loop.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavfilter/vf_ssim.c')
| -rw-r--r-- | libavfilter/vf_ssim.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/libavfilter/vf_ssim.c b/libavfilter/vf_ssim.c index 40c70b8c35..b1c3368bcd 100644 --- a/libavfilter/vf_ssim.c +++ b/libavfilter/vf_ssim.c @@ -132,7 +132,7 @@ static float ssim_end1(int s1, int s2, int ss, int s12) / ((float)(fs1 * fs1 + fs2 * fs2 + ssim_c1) * (float)(vars + ssim_c2)); } -static float ssim_end4(int sum0[5][4], int sum1[5][4], int width) +static float ssim_endn(int (*sum0)[4], int (*sum1)[4], int width) { float ssim = 0.0; int i; @@ -167,8 +167,7 @@ static float ssim_plane(uint8_t *main, int main_stride, &sum0[x]); } - for (x = 0; x < width - 1; x += 4) - ssim += ssim_end4(sum0 + x, sum1 + x, FFMIN(4, width - x - 1)); + ssim += ssim_endn(sum0, sum1, width - 1); } return ssim / ((height - 1) * (width - 1)); |