- for (i = 0; i < length / 2; i++) {
- int x = (PARA_ABS(*ip) * (64 + pad->amp)) >> 6;
- *op++ = *ip++ > 0? PARA_MIN(x, 32767) : PARA_MAX(-x, -32768);
+
+ if (pad->amp == 0) {
+ memcpy(op, ip, length * 2);
+ goto out;
+ }
+ for (i = 0; i < length; i++) {
+ int x = (ip[i] * factor) >> 6;
+
+ op[i] = x;
+ if (op[i] != x)
+ op[i] = (x >= 32768)? 32767 : -32768;