source: src/notes/notes.c @ 4da806c

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since 4da806c was 4da806c, checked in by Paul Brossier <piem@piem.org>, 6 years ago

src/notes/notes.c: add notes object basics

  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2  Copyright (C) 2014 Paul Brossier <piem@aubio.org>
3
4  This file is part of aubio.
5
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.
10
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/>.
18
19*/
20
21#include "aubio_priv.h"
22#include "fvec.h"
23#include "pitch/pitch.h"
24#include "onset/onset.h"
25#include "notes/notes.h"
26
27struct _aubio_notes_t {
28
29  uint_t onset_buf_size;
30  uint_t pitch_buf_size;
31  uint_t hop_size;
32
33  uint_t samplerate;
34
35  uint_t median;
36  fvec_t *note_buffer;
37  fvec_t *note_buffer2;
38
39  aubio_pitch_t *pitch;
40  aubio_onset_t *onset;
41  fvec_t *onset_output;
42  fvec_t *pitch_output;
43
44  smpl_t curnote;
45  smpl_t newnote;
46};
47
48aubio_notes_t * new_aubio_notes (char_t * notes_method,
49    uint_t buf_size, uint_t hop_size, uint_t samplerate) {
50  aubio_notes_t *o = AUBIO_NEW(aubio_notes_t);
51
52  o->onset_buf_size = buf_size;
53  o->pitch_buf_size = buf_size * 4;
54  o->hop_size = hop_size;
55
56  o->samplerate = samplerate;
57
58  o->median = 9;
59
60  if (strcmp(notes_method, "default") != 0) {
61    AUBIO_ERR("unknown notes detection method %s, using default.\n",
62       notes_method);
63    goto fail;
64  }
65  o->note_buffer = new_fvec(o->median);
66  o->note_buffer2 = new_fvec(o->median);
67
68  o->curnote = -1.;
69  o->newnote = -1.;
70
71  return o;
72
73fail:
74  del_aubio_notes(o);
75  return NULL;
76}
77
78void del_aubio_notes (aubio_notes_t *o) {
79  if (o->note_buffer) del_fvec(o->note_buffer);
80  if (o->note_buffer2) del_fvec(o->note_buffer2);
81  AUBIO_FREE(o);
82}
Note: See TracBrowser for help on using the repository browser.