source: examples/aubiotrack.c

Last change on this file was 6b84d81, checked in by Paul Brossier <piem@piem.org>, 15 months ago

[examples] remove unneeded cast

  • Property mode set to 100644
File size: 3.0 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_SILENCE 1
25#define PROG_HAS_OUTPUT 1
26#define PROG_HAS_JACK 1
27#include "parse_args.h"
28
29aubio_tempo_t * tempo;
30aubio_wavetable_t *wavetable;
31fvec_t * tempo_out;
32smpl_t is_beat = 0.;
33uint_t is_silence = 0;
34
35void process_block(fvec_t * ibuf, fvec_t *obuf) {
36  aubio_tempo_do (tempo, ibuf, tempo_out);
37  is_beat = fvec_get_sample (tempo_out, 0);
38  if (silence_threshold != -90.)
39    is_silence = aubio_silence_detection(ibuf, silence_threshold);
40  if ( !usejack && ! sink_uri ) return;
41  fvec_zeros (obuf);
42  if ( is_beat && !is_silence ) {
43    aubio_wavetable_play ( wavetable );
44    /* send a midi tap (default to C0) out to the midi output */
45    if (usejack) send_noteon(miditap_note, miditap_velo);
46  } else {
47    aubio_wavetable_stop ( wavetable );
48  }
49  if (mix_input) {
50    aubio_wavetable_do (wavetable, ibuf, obuf);
51  } else {
52    aubio_wavetable_do (wavetable, obuf, obuf);
53  }
54}
55
56void process_print (void) {
57  if ( is_beat && !is_silence ) {
58    print_time (aubio_tempo_get_last (tempo));
59    outmsg ("\n");
60  }
61}
62
63int main(int argc, char **argv) {
64  int ret = 0;
65  // override general settings from utils.c
66  buffer_size = 1024;
67  hop_size = 512;
68
69  examples_common_init(argc,argv);
70
71  verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
72
73  verbmsg ("tempo method: %s, ", tempo_method);
74  verbmsg ("buffer_size: %d, ", buffer_size);
75  verbmsg ("hop_size: %d, ", hop_size);
76  verbmsg ("threshold: %f\n", onset_threshold);
77
78  tempo_out = new_fvec(2);
79  tempo = new_aubio_tempo(tempo_method, buffer_size, hop_size, samplerate);
80  if (tempo == NULL) { ret = 1; goto beach; }
81  // set silence threshold very low to output beats even during silence
82  // aubio_tempo_set_silence(tempo, -1000.);
83  if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);
84  if (onset_minioi != 0.) errmsg ("warning: minioio not supported yet\n");
85
86  wavetable = new_aubio_wavetable (samplerate, hop_size);
87  aubio_wavetable_set_freq ( wavetable, 2450.);
88  //aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
89
90  examples_common_process(process_block, process_print);
91
92  // send a last note off
93  if (usejack) {
94    send_noteon (miditap_note, 0);
95  }
96
97  del_aubio_tempo(tempo);
98  del_aubio_wavetable (wavetable);
99  del_fvec(tempo_out);
100
101beach:
102  examples_common_del();
103  return ret;
104}
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