avfilter:audio: fix shadowed AVFrame *out

[ffmpeg] / libavfilter / vf_xbr.c

diff --git a/libavfilter/vf_xbr.c b/libavfilter/vf_xbr.c
index 858660873c2859b52d9b8ae2cad98190a267ec06..c92e9a82309bc4d066cf525f5858c551691df195 100644 (file)
--- a/libavfilter/vf_xbr.c
+++ b/libavfilter/vf_xbr.c
@@ -65,13 +65,14 @@ static uint32_t pixel_diff(uint32_t x, uint32_t y, const uint32_t *r2y)
 #define YMASK 0xff0000
 #define UMASK 0x00ff00
 #define VMASK 0x0000ff
+#define ABSDIFF(a,b) (abs((int)(a)-(int)(b)))
 
     uint32_t yuv1 = r2y[x & 0xffffff];
     uint32_t yuv2 = r2y[y & 0xffffff];
 
-    return (abs((yuv1 & YMASK) - (yuv2 & YMASK)) >> 16) +
-           (abs((yuv1 & UMASK) - (yuv2 & UMASK)) >>  8) +
-           abs((yuv1 & VMASK) - (yuv2 & VMASK));
+    return (ABSDIFF(yuv1 & YMASK, yuv2 & YMASK) >> 16) +
+           (ABSDIFF(yuv1 & UMASK, yuv2 & UMASK) >>  8) +
+            ABSDIFF(yuv1 & VMASK, yuv2 & VMASK);
 }
 
 #define ALPHA_BLEND_128_W(a, b) ((((a) & LB_MASK) >> 1) + (((b) & LB_MASK) >> 1))