source: examples/aubiopitch.c @ bab24a0

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since bab24a0 was 4621cd6, checked in by Paul Brossier <piem@piem.org>, 15 years ago

examples: switch to mono

  • Property mode set to 100644
File size: 2.1 KB
Line 
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
23unsigned int pos = 0; /*frames%dspblocksize*/
24
25aubio_pitch_t *o;
26fvec_t *pitch;
27
28static int aubio_process(smpl_t **input, smpl_t **output, int nframes) {
29  unsigned int j;       /*frames*/
30  for (j=0;j<(unsigned)nframes;j++) {
31    if(usejack) {
32      /* write input to datanew */
33      fvec_write_sample(ibuf, input[0][j], pos);
34      /* put synthnew in output */
35      output[0][j] = fvec_read_sample(obuf, pos);
36    }
37    /*time for fft*/
38    if (pos == overlap_size-1) {         
39      /* block loop */
40      aubio_pitch_do (o, ibuf, pitch);
41      if (fvec_read_sample(pitch, 0)) {
42        for (pos = 0; pos < overlap_size; pos++){
43          // TODO, play sine at this freq
44        }
45      } else {
46        fvec_zeros (obuf);
47      }
48      /* end of block loop */
49      pos = -1; /* so it will be zero next j loop */
50    }
51    pos++;
52  }
53  return 1;
54}
55
56static void process_print (void) {
57      if (!verbose && usejack) return;
58      smpl_t pitch_found = fvec_read_sample(pitch, 0);
59      outmsg("%f %f\n",(frames) 
60              *overlap_size/(float)samplerate, pitch_found);
61}
62
63int main(int argc, char **argv) {
64  examples_common_init(argc,argv);
65
66  o = new_aubio_pitch (onset_mode, buffer_size, overlap_size, samplerate);
67  pitch = new_fvec (1);
68
69  examples_common_process(aubio_process,process_print);
70
71  del_aubio_pitch (o);
72  del_fvec (pitch);
73
74  examples_common_del();
75  debug("End of program.\n");
76  fflush(stderr);
77  return 0;
78}
79
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