Lines Matching refs:sum2
580 float sum1 = 0.0, sum2 = 0.0, gamma, gain;
589 sum2 += in[i] * in[i + 1];
590 if (sum2 < 0.0)
604 for (n = ACB_SIZE, sum2 = 0; n < ACB_SIZE + length; n++)
605 sum2 += e->postfilter_residual[n] * e->postfilter_residual[n - i];
606 if (sum2 > sum1) {
607 sum1 = sum2;
614 for (i = ACB_SIZE, sum2 = 0; i < ACB_SIZE + length; i++)
615 sum2 += e->postfilter_residual[i] * e->postfilter_residual[i - best];
617 if (sum2 * sum1 == 0 || e->bitrate == RATE_QUANT) {
620 gamma = sum2 / sum1;
638 for (i = 0, sum1 = 0, sum2 = 0; i < length; i++) {
640 sum2 += scratch[i] * scratch[i];
642 gain = sum2 ? sqrt(sum1 / sum2) : 1.0;