source: examples/aubiotrack.c @ 2719c54

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 2719c54 was f280ebd, checked in by Paul Brossier <piem@piem.org>, 8 years ago

examples/aubiotrack.c: fix is_beat / is_silence types

  • Property mode set to 100644
File size: 2.9 KB
Line 
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_TEMPO 1
23#define PROG_HAS_ONSET 1
24#define PROG_HAS_OUTPUT 1
25#define PROG_HAS_JACK 1
26#include "parse_args.h"
27
28aubio_tempo_t * tempo;
29aubio_wavetable_t *wavetable;
30fvec_t * tempo_out;
31smpl_t is_beat = 0.;
32uint_t is_silence = 0;
33
34void process_block(fvec_t * ibuf, fvec_t *obuf) {
35  aubio_tempo_do (tempo, ibuf, tempo_out);
36  is_beat = fvec_get_sample (tempo_out, 0);
37  if (silence_threshold != -90.)
38    is_silence = aubio_silence_detection(ibuf, silence_threshold);
39  if ( !usejack && ! sink_uri ) return;
40  fvec_zeros (obuf);
41  if ( is_beat && !is_silence ) {
42    aubio_wavetable_play ( wavetable );
43    /* send a midi tap (default to C0) out to the midi output */
44    if (usejack) send_noteon(miditap_note, miditap_velo);
45  } else {
46    aubio_wavetable_stop ( wavetable );
47  }
48  if (mix_input)
49    aubio_wavetable_do (wavetable, ibuf, obuf);
50  else
51    aubio_wavetable_do (wavetable, obuf, obuf);
52}
53
54void process_print (void) {
55  if ( is_beat && !is_silence ) {
56    print_time (aubio_tempo_get_last (tempo));
57    outmsg ("\n");
58  }
59}
60
61int main(int argc, char **argv) {
62  // override general settings from utils.c
63  buffer_size = 1024;
64  hop_size = 512;
65
66  examples_common_init(argc,argv);
67
68  verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
69
70  verbmsg ("tempo method: %s, ", tempo_method);
71  verbmsg ("buffer_size: %d, ", buffer_size);
72  verbmsg ("hop_size: %d, ", hop_size);
73  verbmsg ("threshold: %f\n", onset_threshold);
74
75  tempo_out = new_fvec(2);
76  tempo = new_aubio_tempo(tempo_method, buffer_size, hop_size, samplerate);
77  // set silence threshold very low to output beats even during silence
78  // aubio_tempo_set_silence(tempo, -1000.);
79  if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);
80
81  wavetable = new_aubio_wavetable (samplerate, hop_size);
82  aubio_wavetable_set_freq ( wavetable, 2450.);
83  //aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
84
85  examples_common_process((aubio_process_func_t)process_block,process_print);
86
87  // send a last note off
88  send_noteon (miditap_note, 0);
89
90  del_aubio_tempo(tempo);
91  del_aubio_wavetable (wavetable);
92  del_fvec(tempo_out);
93
94  examples_common_del();
95  return 0;
96}
97
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