Merge commit 'ea8ae27a5e112d06fd5625f640e40849e6313f0c'

[ffmpeg] / libavfilter / af_aiir.c

diff --git a/libavfilter/af_aiir.c b/libavfilter/af_aiir.c
index 65c8201137471e5ced30a759ddc919acefa430a1..9a4769c25f83155c8999da981494561998cc2075 100644 (file)
--- a/libavfilter/af_aiir.c
+++ b/libavfilter/af_aiir.c
@@ -686,7 +686,7 @@ static void drawtext(AVFrame *pic, int x, int y, const char *txt, uint32_t color
 
 static void draw_line(AVFrame *out, int x0, int y0, int x1, int y1, uint32_t color)
 {
-    int dx = FFABS(x1-x0), sx = x0 < x1 ? 1 : -1;
+    int dx = FFABS(x1-x0);
     int dy = FFABS(y1-y0), sy = y0 < y1 ? 1 : -1;
     int err = (dx>dy ? dx : -dy) / 2, e2;
 
@@ -700,7 +700,7 @@ static void draw_line(AVFrame *out, int x0, int y0, int x1, int y1, uint32_t col
 
         if (e2 >-dx) {
             err -= dy;
-            x0 += sx;
+            x0--;
         }
 
         if (e2 < dy) {