// macros for manipulating median values
#define GET_MED(n) ((c->median[n] >> 4) + 1)
-#define DEC_MED(n) c->median[n] -= ((c->median[n] + (128 >> (n)) - 2) / (128 >> (n))) * 2
-#define INC_MED(n) c->median[n] += ((c->median[n] + (128 >> (n)) ) / (128 >> (n))) * 5
+#define DEC_MED(n) c->median[n] -= ((c->median[n] + (128 >> (n)) - 2) / (128 >> (n))) * 2U
+#define INC_MED(n) c->median[n] += ((c->median[n] + (128 >> (n)) ) / (128 >> (n))) * 5U
// macros for applying weight
#define UPDATE_WEIGHT_CLIP(weight, delta, samples, in) \
res = wp_exp2_table[val & 0xFF] | 0x100;
val >>= 8;
+ if (val > 31U)
+ return INT_MIN;
res = (val > 9) ? (res << (val - 9)) : (res >> (9 - val));
return neg ? -res : res;
}