source: examples/aubiotrack.c @ 90a8f2f

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 90a8f2f was 5a66677, checked in by Paul Brossier <piem@piem.org>, 12 years ago

examples/: use aubio_source and aubio_sink

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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 <aubio.h>
22#include "utils.h"
23
24uint_t pos = 0;    /* frames%dspblocksize */
25fvec_t * tempo_out = NULL;
26aubio_tempo_t * bt = NULL;
27smpl_t istactus = 0;
28smpl_t isonset = 0;
29
30static int aubio_process(smpl_t **input, smpl_t **output, int nframes) {
31  unsigned int j;       /*frames*/
32  for (j=0;j<(unsigned)nframes;j++) {
33    if(usejack) {
34      /* write input to datanew */
35      fvec_write_sample(ibuf, input[0][j], pos);
36      /* put synthnew in output */
37      output[0][j] = fvec_read_sample(obuf, pos);
38    }
39    /*time for fft*/
40    if (pos == overlap_size-1) {         
41      /* block loop */
42      aubio_tempo_do (bt,ibuf,tempo_out);
43      istactus = fvec_read_sample (tempo_out, 0);
44      isonset = fvec_read_sample (tempo_out, 1);
45      if (istactus > 0.) {
46        fvec_copy (woodblock, obuf);
47      } else {
48        fvec_zeros (obuf);
49      }
50      /* end of block loop */
51      pos = -1; /* so it will be zero next j loop */
52    }
53    pos++;
54  }
55  return 1;
56}
57
58static void process_print (void) {
59        if (sink_uri == NULL) {
60                if (istactus) {
61                        outmsg("%f\n",((smpl_t)(frames*overlap_size)+(istactus-1.)*overlap_size)/(smpl_t)samplerate); 
62                }
63                if (isonset && verbose)
64                        outmsg(" \t \t%f\n",(frames)*overlap_size/(float)samplerate);
65        }
66}
67
68int main(int argc, char **argv) {
69 
70  buffer_size = 1024;
71  overlap_size = 512;
72  /* override default settings */
73  examples_common_init(argc,argv);
74
75  tempo_out = new_fvec(2);
76  bt = new_aubio_tempo(onset_mode,buffer_size,overlap_size, samplerate);
77  if (threshold != 0.) aubio_tempo_set_threshold (bt, threshold);
78
79  examples_common_process(aubio_process,process_print);
80
81  del_aubio_tempo(bt);
82  del_fvec(tempo_out);
83
84  examples_common_del();
85
86  debug("End of program.\n");
87
88  fflush(stderr);
89
90  return 0;
91}
92
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