lavfi/edgedetect: add missing minus in a comment.

12 years ago · 2308c5bb25
parent d771b1d137
commit 2308c5bb25
1 changed files with 1 additions and 1 deletions
--- a/libavfilter/vf_edgedetect.c
+++ b/libavfilter/vf_edgedetect.c
@ -142,7 +142,7 @@ static int get_rounded_direction(int gx, int gy)
     * Gy/Gx is the tangent of the angle (theta), so Gy/Gx is compared against
     * <ref-angle>, or more simply Gy against <ref-angle>*Gx
     *
-     * Gx and Gy bounds = [1020;1020], using 16-bit arithmetic:
+     * Gx and Gy bounds = [-1020;1020], using 16-bit arithmetic:
     *   round((sqrt(2)-1) * (1<<16)) =  27146
     *   round((sqrt(2)+1) * (1<<16)) = 158218
     */