avcodec/jpeg2000dwt: Fix integer overflows in sr_1d53()

[ffmpeg] / libavcodec / dirac_dwt.h

diff --git a/libavcodec/dirac_dwt.h b/libavcodec/dirac_dwt.h
index 1af41e07025fe3b5e17d1f0ad20c654e6a487aac..68ebd195603a1bb414e0eaad7b28bcfcb17b6f91 100644 (file)
--- a/libavcodec/dirac_dwt.h
+++ b/libavcodec/dirac_dwt.h
@@ -93,10 +93,10 @@ void ff_spatial_idwt_slice2(DWTContext *d, int y);
 
 // shared stuff for simd optimizations
 #define COMPOSE_53iL0(b0, b1, b2)\
-    (b1 - ((int)(b0 + (unsigned)(b2) + 2) >> 2))
+    (b1 - (unsigned)((int)(b0 + (unsigned)(b2) + 2) >> 2))
 
 #define COMPOSE_DIRAC53iH0(b0, b1, b2)\
-    (b1 + ((int)(b0 + (unsigned)(b2) + 1) >> 1))
+    (b1 + (unsigned)((int)(b0 + (unsigned)(b2) + 1) >> 1))
 
 #define COMPOSE_DD97iH0(b0, b1, b2, b3, b4)\
     (int)(((unsigned)(b2) + ((int)(-b0 + 9U*b1 + 9U*b3 - b4 + 8) >> 4)))