avcodec/ra144: Fix integer overflow in ff_eval_refl()
[ffmpeg.git] / libavcodec / ra144.c
index c077b7b..cf8127c 100644 (file)
@@ -1569,11 +1569,11 @@ int ff_eval_refl(int *refl, const int16_t *coefs, AVCodecContext *avctx)
         b = 0x1000000 / b;
         for (j=0; j <= i; j++) {
 #if CONFIG_FTRAPV
-            int a = bp2[j] - ((refl[i+1] * bp2[i-j]) >> 12);
+            int a = bp2[j] - ((int)(refl[i+1] * (unsigned)bp2[i-j]) >> 12);
             if((int)(a*(unsigned)b) != a*(int64_t)b)
                 return 1;
 #endif
-            bp1[j] = (int)((bp2[j] - ((refl[i+1] * bp2[i-j]) >> 12)) * (unsigned)b) >> 12;
+            bp1[j] = (int)((bp2[j] - ((int)(refl[i+1] * (unsigned)bp2[i-j]) >> 12)) * (unsigned)b) >> 12;
         }
 
         if ((unsigned) bp1[i] + 0x1000 > 0x1fff)