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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2018-11-12 17:40:32 +0300 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2018-11-12 18:26:51 +0300 |
| commit | 4b0683a615a353757ad75c4eb4ee67e12a0aa8ce (patch) | |
| tree | 506da2c53e03ae057ec4a62f5553475387956817 /src/looprestoration_tmpl.c | |
| parent | a977ede2e4890e9a24486dbd8aba37a23f56b04d (diff) | |
Re-add imax(v, 0) in SGR calculation
Apparently this can happen for bitdepth > 8. I haven't seen it
happen for bitdepth==8. Fixes #161.
Diffstat (limited to 'src/looprestoration_tmpl.c')
| -rw-r--r-- | src/looprestoration_tmpl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/looprestoration_tmpl.c b/src/looprestoration_tmpl.c index 8370a7d..c88e425 100644 --- a/src/looprestoration_tmpl.c +++ b/src/looprestoration_tmpl.c @@ -441,7 +441,7 @@ static void selfguided_filter(int16_t *dst, const pixel *src, const int b = (BB[i] + (1 << (BITDEPTH - 8) >> 1)) >> (BITDEPTH - 8); - const unsigned p = a * n - b * b; + const unsigned p = imax(a * n - b * b, 0); const unsigned z = (p * s + (1 << 19)) >> 20; const int x = dav1d_sgr_x_by_xplus1[imin(z, 255)]; |