Lines Matching refs:iir
123 * @param iir pole memory
125 static void highpass_filter(int16_t *buf, int16_t *fir, int *iir)
129 *iir = (buf[i] << 15) + ((-*fir) << 15) + MULL2(*iir, 0x7f00);
131 buf[i] = av_clipl_int32((int64_t)*iir + (1 << 15)) >> 16;
638 * @param perf_iir perceptual filter iir memory
664 int64_t fir = 0, iir = 0;
667 iir += perf_lpc[j + LPC_ORDER - 1] * dest[i - j];
669 dest[i] = av_clipl_int32(((buf[i] + (fir << 3)) << scale) + (iir << 3) +
1167 int16_t zero[LPC_ORDER], fir[LPC_ORDER], iir[LPC_ORDER];
1185 memcpy(iir, p->perf_iir_mem, sizeof(int16_t) * LPC_ORDER);
1188 fir, iir, flt_in, vector + PITCH_MAX, 0);