Searched refs:x_lp (Results 1 – 1 of 1) sorted by relevance
| /third_party/ffmpeg/libavfilter/ |
| D | af_arnndn.c | 755 static void pitch_downsample(float *x[], float *x_lp, in pitch_downsample() argument
765 x_lp[i] = .5f * (.5f * (x[0][(2*i-1)]+x[0][(2*i+1)])+x[0][2*i]); in pitch_downsample()
766 x_lp[0] = .5f * (.5f * (x[0][1])+x[0][0]); in pitch_downsample()
769 x_lp[i] += (.5f * (.5f * (x[1][(2*i-1)]+x[1][(2*i+1)])+x[1][2*i])); in pitch_downsample()
770 x_lp[0] += .5f * (.5f * (x[1][1])+x[1][0]); in pitch_downsample()
773 celt_autocorr(x_lp, ac, NULL, 0, 4, len>>1); in pitch_downsample()
794 celt_fir5(x_lp, lpc2, x_lp, len>>1, mem); in pitch_downsample()
967 static void pitch_search(const float *x_lp, float *y, in pitch_search() argument
982 x_lp4[j] = x_lp[2*j]; in pitch_search()
998 sum = celt_inner_prod(x_lp, y+i, len>>1); in pitch_search()
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