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-rw-r--r--libmpcodecs/vf_eq2.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/libmpcodecs/vf_eq2.c b/libmpcodecs/vf_eq2.c
index 8f35f1ea45..57d13023f0 100644
--- a/libmpcodecs/vf_eq2.c
+++ b/libmpcodecs/vf_eq2.c
@@ -70,7 +70,9 @@ void create_lut (vf_eq2_t *eq2)
eq2->lut[i] = 255;
}
else {
- eq2->lut[i] = (unsigned char) (256.0 * v);
+ /* we divided by 255.0 so now we also multiply by 255.0, not
+ by 256.0. "+ 0.5" ensures proper rounding */
+ eq2->lut[i] = (unsigned char) (255.0 * v + 0.5);
}
}
}
@@ -85,11 +87,10 @@ void process (unsigned char *dst, int dstride, unsigned char *src, int sstride,
for (j = 0; j < h; j++) {
for (i = 0; i < w; i++) {
- *(dst++) = lut[*(src++)];
+ dst[i] = lut[src[i]];
}
-
- src += sstride - w;
- dst += dstride - w;
+ src += sstride;
+ dst += dstride;
}
}