source: examples/aubioonset.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

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File size: 2.1 KB
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1/*
2  Copyright (C) 2003-2013 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 "utils.h"
22#define PROG_HAS_ONSET 1
23#include "parse_args.h"
24
25aubio_onset_t *o;
26aubio_wavetable_t *wavetable;
27fvec_t *onset;
28
29void
30process_block(fvec_t *ibuf, fvec_t *obuf) {
31  fvec_zeros(obuf);
32  aubio_onset_do (o, ibuf, onset);
33  if ( fvec_read_sample(onset, 0) ) {
34    aubio_wavetable_play ( wavetable );
35  } else {
36    aubio_wavetable_stop ( wavetable );
37  }
38  aubio_wavetable_do (wavetable, obuf, obuf);
39}
40
41void
42process_print (void)
43{
44  smpl_t onset_found = fvec_read_sample (onset, 0);
45  if (onset_found) {
46    outmsg ("%f\n", aubio_onset_get_last_s (o) );
47  }
48}
49
50int main(int argc, char **argv) {
51  examples_common_init(argc,argv);
52
53  verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
54  verbmsg ("onset method: %s, ", onset_method);
55  verbmsg ("buffer_size: %d, ", buffer_size);
56  verbmsg ("hop_size: %d, ", hop_size);
57  verbmsg ("threshold: %f\n", onset_threshold);
58
59  o = new_aubio_onset (onset_method, buffer_size, hop_size, samplerate);
60  if (onset_threshold != 0.) aubio_onset_set_threshold (o, onset_threshold);
61  onset = new_fvec (1);
62
63  wavetable = new_aubio_wavetable (samplerate, hop_size);
64  aubio_wavetable_set_freq ( wavetable, 2450.);
65  //aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
66
67  examples_common_process((aubio_process_func_t)process_block, process_print);
68
69  del_aubio_onset (o);
70  del_aubio_wavetable (wavetable);
71  del_fvec (onset);
72
73  examples_common_del();
74  return 0;
75}
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