source: src/temporal/biquad.c @ d6b1a85

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since d6b1a85 was d6b1a85, checked in by Paul Brossier <piem@piem.org>, 6 years ago

src/temporal/biquad.c: add missing include

  • Property mode set to 100644
File size: 1.5 KB
RevLine 
[96fb8ad]1/*
[e6a78ea]2  Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>
[96fb8ad]3
[e6a78ea]4  This file is part of aubio.
[96fb8ad]5
[e6a78ea]6  aubio is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
[96fb8ad]10
[e6a78ea]11  aubio is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15
16  You should have received a copy of the GNU General Public License
17  along with aubio.  If not, see <http://www.gnu.org/licenses/>.
[96fb8ad]18
19*/
20
21#include "aubio_priv.h"
[6c7d49b]22#include "fvec.h"
[b01bd4a]23#include "lvec.h"
24#include "temporal/filter.h"
[d6b1a85]25#include "temporal/biquad.h"
[b01bd4a]26
27uint_t
28aubio_filter_set_biquad (aubio_filter_t * f, lsmp_t b0, lsmp_t b1, lsmp_t b2,
[bafe71d]29    lsmp_t a1, lsmp_t a2)
30{
[b01bd4a]31  uint_t order = aubio_filter_get_order (f);
32  lvec_t *bs = aubio_filter_get_feedforward (f);
33  lvec_t *as = aubio_filter_get_feedback (f);
34
35  if (order != 3) {
36    AUBIO_ERROR ("order of biquad filter must be 3, not %d\n", order);
37    return AUBIO_FAIL;
[96fb8ad]38  }
[741bdda]39  bs->data[0] = b0;
40  bs->data[1] = b1;
41  bs->data[2] = b2;
42  as->data[0] = 1.;
43  as->data[1] = a1;
44  as->data[1] = a2;
[b01bd4a]45  return AUBIO_OK;
[96fb8ad]46}
47
[b01bd4a]48aubio_filter_t *
[741bdda]49new_aubio_filter_biquad (lsmp_t b0, lsmp_t b1, lsmp_t b2, lsmp_t a1, lsmp_t a2)
[b01bd4a]50{
[741bdda]51  aubio_filter_t *f = new_aubio_filter (3);
[b01bd4a]52  aubio_filter_set_biquad (f, b0, b1, b2, a1, a2);
53  return f;
[ec4ccaf]54}
Note: See TracBrowser for help on using the repository browser.