source: examples/aubiopitch.c @ 466dff3

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since 466dff3 was 466dff3, checked in by Paul Brossier <piem@piem.org>, 6 years ago

examples/: large refactoring, improve option management, remove old stuff, move blocking logic to jackio

  • Property mode set to 100644
File size: 2.1 KB
RevLine 
[b14107f]1/*
[466dff3]2  Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
[b14107f]3
[6a2478c]4  This file is part of aubio.
[b14107f]5
[6a2478c]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/>.
[b14107f]18
19*/
20
21#include "utils.h"
[1b25a70]22#define PROG_HAS_PITCH 1
23#include "parse_args.h"
[b14107f]24
25aubio_pitch_t *o;
[f3617e7]26aubio_wavetable_t *wavetable;
[b14107f]27fvec_t *pitch;
28
[466dff3]29void
30process_block(fvec_t * ibuf, fvec_t * obuf) {
31  fvec_zeros(obuf);
32  aubio_pitch_do (o, ibuf, pitch);
33  smpl_t freq = fvec_read_sample(pitch, 0);
34  aubio_wavetable_set_amp ( wavetable, aubio_level_lin (ibuf) );
35  if (freq != 0.0) {
36    aubio_wavetable_set_freq ( wavetable, freq );
37  } else {
38    aubio_wavetable_set_freq ( wavetable, 0.0 );
[b14107f]39  }
[466dff3]40  aubio_wavetable_do (wavetable, obuf, obuf);
[b14107f]41}
42
[466dff3]43void
44process_print (void) {
45  smpl_t pitch_found = fvec_read_sample(pitch, 0);
46  outmsg("%f %f\n",(blocks)
47      *hop_size/(float)samplerate, pitch_found);
[b14107f]48}
49
50int main(int argc, char **argv) {
51  examples_common_init(argc,argv);
52
[466dff3]53  verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
54  verbmsg ("pitch method: %s, ", pitch_method);
55  verbmsg ("buffer_size: %d, ", buffer_size);
56  verbmsg ("hop_size: %d, ", hop_size);
57  verbmsg ("tolerance: %f\n", pitch_tolerance);
58
59  o = new_aubio_pitch (pitch_method, buffer_size, hop_size, samplerate);
60  if (pitch_tolerance != 0.) aubio_pitch_set_tolerance (o, pitch_tolerance);
[4621cd6]61  pitch = new_fvec (1);
[b14107f]62
[466dff3]63  wavetable = new_aubio_wavetable (samplerate, hop_size);
[f3617e7]64  aubio_wavetable_play ( wavetable );
65
[466dff3]66  examples_common_process((aubio_process_func_t)process_block,process_print);
[b14107f]67
68  del_aubio_pitch (o);
[f3617e7]69  del_aubio_wavetable (wavetable);
[b14107f]70  del_fvec (pitch);
71
72  examples_common_del();
73  return 0;
74}
75
Note: See TracBrowser for help on using the repository browser.