source: examples/aubioonset.c @ 44e94f3c

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since 44e94f3c was 1b25a70, checked in by Paul Brossier <piem@piem.org>, 6 years ago

examples/: move parse_args to parse_args.h, clean up, remove lash and old frames_delay

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File size: 2.6 KB
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1/*
2  Copyright (C) 2003-2009 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
23#include "parse_args.h"
24
25uint_t pos = 0; /*frames%dspblocksize*/
26
27aubio_onset_t *o;
28aubio_wavetable_t *wavetable;
29fvec_t *onset;
30
31static int aubio_process(smpl_t **input, smpl_t **output, int nframes) {
32  unsigned int j;       /*frames*/
33  for (j=0;j<(unsigned)nframes;j++) {
34    if(usejack) {
35      /* write input to datanew */
36      fvec_write_sample(ibuf, input[0][j], pos);
37      /* put synthnew in output */
38      output[0][j] = fvec_read_sample(obuf, pos);
39    }
40    /*time for fft*/
41    if (pos == overlap_size-1) {
42      /* block loop */
43      fvec_zeros(obuf);
44      aubio_onset_do (o, ibuf, onset);
45      if ( fvec_read_sample(onset, 0) ) {
46        aubio_wavetable_play ( wavetable );
47      } else {
48        aubio_wavetable_stop ( wavetable );
49      }
50      aubio_wavetable_do (wavetable, obuf, obuf);
51      /* end of block loop */
52      pos = -1; /* so it will be zero next j loop */
53    }
54    pos++;
55  }
56  return 1;
57}
58
59static void
60process_print (void)
61{
62  /* output times in seconds, taking back some delay to ensure the label is
63   * _before_ the actual onset */
64  if (!verbose && usejack)
65    return;
66  smpl_t onset_found = fvec_read_sample (onset, 0);
67  if (onset_found) {
68    outmsg ("%f\n", aubio_onset_get_last_s (o) );
69  }
70}
71
72int main(int argc, char **argv) {
73  examples_common_init(argc,argv);
74
75  o = new_aubio_onset (onset_method, buffer_size, overlap_size, samplerate);
76  if (onset_threshold != 0.) aubio_onset_set_threshold (o, onset_threshold);
77  onset = new_fvec (1);
78
79  wavetable = new_aubio_wavetable (samplerate, overlap_size);
80  aubio_wavetable_set_freq ( wavetable, 2450.);
81  //aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
82
83  examples_common_process(aubio_process,process_print);
84
85  del_aubio_onset (o);
86  del_aubio_wavetable (wavetable);
87  del_fvec (onset);
88
89  examples_common_del();
90  debug("End of program.\n");
91  fflush(stderr);
92  return 0;
93}
94
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