Lines Matching refs:fir
77 int16_t hpf_fir_mem; ///< highpass filter fir
79 int16_t perf_fir_mem[LPC_ORDER]; ///< perceptual filter fir
1382 * @param fir zero memory
1385 static void highpass_filter(int16_t *buf, int16_t *fir, int *iir)
1389 *iir = (buf[i] << 15) + ((-*fir) << 15) + MULL2(*iir, 0x7f00);
1390 *fir = buf[i];
1873 * @param perf_fir perceptual filter fir memory
1900 int64_t fir = 0, iir = 0;
1902 fir -= perf_lpc[j - 1] * bptr_16[i - j];
1905 dest[i] = av_clipl_int32(((buf[i] + (fir << 3)) << scale) + (iir << 3) +
2407 int16_t zero[LPC_ORDER], fir[LPC_ORDER], iir[LPC_ORDER];
2424 memcpy(fir, p->perf_fir_mem, sizeof(int16_t) * LPC_ORDER);
2428 fir, iir, flt_in, vector + PITCH_MAX, 0);