source: examples/aubiopitch.c @ 61a1e5d

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchsampleryinfft+
Last change on this file since 61a1e5d was 61a1e5d, checked in by Paul Brossier <piem@piem.org>, 3 years ago

examples/: return 1 if object creation failed

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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_PITCH 1
23#define PROG_HAS_OUTPUT 1
24#define PROG_HAS_SILENCE 1
25#define PROG_HAS_JACK 1
26#include "parse_args.h"
27
28aubio_pitch_t *o;
29aubio_wavetable_t *wavetable;
30fvec_t *pitch;
31
32void process_block(fvec_t * ibuf, fvec_t * obuf)
33{
34  smpl_t freq;
35  aubio_pitch_do (o, ibuf, pitch);
36  if ( !usejack && ! sink_uri ) return;
37  fvec_zeros(obuf);
38  freq = fvec_get_sample(pitch, 0);
39  aubio_wavetable_set_amp ( wavetable, aubio_level_lin (ibuf) );
40  aubio_wavetable_set_freq ( wavetable, freq );
41  if (mix_input)
42    aubio_wavetable_do (wavetable, ibuf, obuf);
43  else
44    aubio_wavetable_do (wavetable, obuf, obuf);
45}
46
47void process_print (void)
48{
49  smpl_t pitch_found = fvec_get_sample(pitch, 0);
50  print_time(blocks * hop_size);
51  outmsg(" %f\n", pitch_found);
52}
53
54int main(int argc, char **argv) {
55  int ret = 0;
56
57  buffer_size = 2048;
58
59  examples_common_init(argc,argv);
60
61  verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
62  verbmsg ("pitch method: %s, ", pitch_method);
63  verbmsg ("pitch unit: %s, ", pitch_unit);
64  verbmsg ("buffer_size: %d, ", buffer_size);
65  verbmsg ("hop_size: %d, ", hop_size);
66  verbmsg ("tolerance: %f\n", pitch_tolerance);
67
68  o = new_aubio_pitch (pitch_method, buffer_size, hop_size, samplerate);
69  if (o == NULL) { ret = 1; goto beach; }
70  if (pitch_tolerance != 0.)
71    aubio_pitch_set_tolerance (o, pitch_tolerance);
72  if (silence_threshold != -90.)
73    aubio_pitch_set_silence (o, silence_threshold);
74  if (pitch_unit != NULL)
75    aubio_pitch_set_unit (o, pitch_unit);
76
77  pitch = new_fvec (1);
78
79  wavetable = new_aubio_wavetable (samplerate, hop_size);
80  aubio_wavetable_play ( wavetable );
81
82  examples_common_process((aubio_process_func_t)process_block,process_print);
83
84  del_aubio_pitch (o);
85  del_aubio_wavetable (wavetable);
86  del_fvec (pitch);
87
88beach:
89  examples_common_del();
90  return ret;
91}
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