int i,n;
for (n = 0; n < buffer_length; n++) {
- int sum = -rounder, sum1;
+ int sum = rounder, sum1;
for (i = 1; i <= filter_length; i++)
- sum += (unsigned)(filter_coeffs[i-1] * out[n-i]);
+ sum -= (unsigned)(filter_coeffs[i-1] * out[n-i]);
- sum1 = ((-sum >> 12) + in[n]) >> shift;
+ sum1 = ((sum >> 12) + in[n]) >> shift;
sum = av_clip_int16(sum1);
if (stop_on_overflow && sum != sum1)