source: examples/aubiopitch.c @ 6a2478c

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 6a2478c was 6a2478c, checked in by Paul Brossier <piem@piem.org>, 14 years ago

examples: more header updates to GPLv3

  • Property mode set to 100644
File size: 2.2 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 i;       /*channels*/
30  unsigned int j;       /*frames*/
31  for (j=0;j<(unsigned)nframes;j++) {
32    if(usejack) {
33      for (i=0;i<channels;i++) {
34        /* write input to datanew */
35        fvec_write_sample(ibuf, input[i][j], i, pos);
36        /* put synthnew in output */
37        output[i][j] = fvec_read_sample(obuf, i, pos);
38      }
39    }
40    /*time for fft*/
41    if (pos == overlap_size-1) {         
42      /* block loop */
43      aubio_pitch_do (o, ibuf, pitch);
44      if (fvec_read_sample(pitch, 0, 0)) {
45        for (pos = 0; pos < overlap_size; pos++){
46          // TODO, play sine at this freq
47        }
48      } else {
49        fvec_zeros (obuf);
50      }
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 process_print (void) {
60      if (!verbose && usejack) return;
61      smpl_t pitch_found = fvec_read_sample(pitch, 0, 0);
62      outmsg("%f %f\n",(frames) 
63              *overlap_size/(float)samplerate, pitch_found);
64}
65
66int main(int argc, char **argv) {
67  examples_common_init(argc,argv);
68
69  o = new_aubio_pitch (onset_mode, buffer_size, overlap_size, channels,
70          samplerate);
71  pitch = new_fvec (1, channels);
72
73  examples_common_process(aubio_process,process_print);
74
75  del_aubio_pitch (o);
76  del_fvec (pitch);
77
78  examples_common_del();
79  debug("End of program.\n");
80  fflush(stderr);
81  return 0;
82}
83
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