Lines Matching defs:ppf
376 * @param ppf pitch postfilter parameters
382 static void comp_ppf_gains(int lag, PPFParam *ppf, enum Rate cur_rate,
388 ppf->index = lag;
395 ppf->opt_gain = ppf_gain_weight[cur_rate];
397 ppf->opt_gain = (ccr << 15) / res_eng *
401 temp1 = (tgt_eng << 15) + (ccr * ppf->opt_gain << 1);
402 temp2 = (ppf->opt_gain * ppf->opt_gain >> 15) * res_eng;
412 ppf->sc_gain = square_root(temp1 << 16);
414 ppf->opt_gain = 0;
415 ppf->sc_gain = 0x7fff;
418 ppf->opt_gain = av_clip_int16(ppf->opt_gain * ppf->sc_gain >> 15);
427 * @param ppf pitch postfilter parameters
431 PPFParam *ppf, enum Rate cur_rate)
452 ppf->index = 0;
453 ppf->opt_gain = 0;
454 ppf->sc_gain = 0x7fff;
483 comp_ppf_gains(fwd_lag, ppf, cur_rate, energy[0], energy[1],
486 comp_ppf_gains(-back_lag, ppf, cur_rate, energy[0], energy[3],
497 comp_ppf_gains(fwd_lag, ppf, cur_rate, energy[0], energy[1],
500 comp_ppf_gains(-back_lag, ppf, cur_rate, energy[0], energy[3],
937 PPFParam ppf[SUBFRAMES];
1018 ppf + j, p->cur_rate);
1023 vector_ptr + i + ppf[j].index,
1024 ppf[j].sc_gain,
1025 ppf[j].opt_gain,