Lines Matching refs:sum2
573 float sum1 = 0.0, sum2 = 0.0, gamma, gain;
582 sum2 += in[i] * in[i + 1];
583 if (sum2 < 0.0)
597 for (n = ACB_SIZE, sum2 = 0; n < ACB_SIZE + length; n++)
598 sum2 += e->postfilter_residual[n] * e->postfilter_residual[n - i];
599 if (sum2 > sum1) {
600 sum1 = sum2;
607 for (i = ACB_SIZE, sum2 = 0; i < ACB_SIZE + length; i++)
608 sum2 += e->postfilter_residual[i] * e->postfilter_residual[i - best];
610 if (sum2 * sum1 == 0 || e->bitrate == RATE_QUANT) {
613 gamma = sum2 / sum1;
631 for (i = 0, sum1 = 0, sum2 = 0; i < length; i++) {
633 sum2 += scratch[i] * scratch[i];
635 gain = sum2 ? sqrt(sum1 / sum2) : 1.0;