avfilter/vf_colorbalance: fix off by one overflow

Signed-off-by: Paul B Mahol <onemda@gmail.com>
7 years ago · 2017b4b1c2
parent d1e1872418
commit 2017b4b1c2
1 changed files with 1 additions and 1 deletions
--- a/libavfilter/vf_colorbalance.c
+++ b/libavfilter/vf_colorbalance.c
@ -291,7 +291,7 @@ static int config_output(AVFilterLink *outlink)

        shadows[i] = low;
        midtones[i] = mid;
-        highlights[max - i] = low;
+        highlights[max - i - 1] = low;
    }

    for (i = 0; i < max; i++) {