Test a var for overflow just after it is set

Originally committed as revision 15223 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago · 4fdb41a84b
parent a90fbeec2a
commit 4fdb41a84b
1 changed files with 2 additions and 2 deletions
--- a/libavcodec/ra144.c
+++ b/libavcodec/ra144.c
@ -251,11 +251,11 @@ static int eval_refl(int *refl, const int16_t *coefs, RA144Context *ractx)
        for (j=0; j <= i; j++)
            bp1[j] = ((bp2[j] - ((refl[i+1] * bp2[i-j]) >> 12)) * (0x1000000 / b)) >> 12;

-        refl[i] = bp1[i];
-
        if ((unsigned) bp1[i] + 0x1000 > 0x1fff)
            return 1;

+        refl[i] = bp1[i];
+
        FFSWAP(int *, bp1, bp2);
    }
    return 0;