source: examples/aubiopitch.c @ 44e94f3c

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 44e94f3c was 1b25a70, checked in by Paul Brossier <piem@piem.org>, 10 years ago

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

  • Property mode set to 100644
File size: 2.5 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#define PROG_HAS_PITCH 1
23#include "parse_args.h"
24
25unsigned int pos = 0; /*frames%dspblocksize*/
26
27aubio_pitch_t *o;
28aubio_wavetable_t *wavetable;
29fvec_t *pitch;
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      aubio_pitch_do (o, ibuf, pitch);
44      smpl_t freq = fvec_read_sample(pitch, 0);
45      aubio_wavetable_set_amp ( wavetable, aubio_level_lin (ibuf) );
46      if (freq != 0.0) {
47        aubio_wavetable_set_freq ( wavetable, freq );
48      } else {
49        aubio_wavetable_set_freq ( wavetable, 0.0 );
50      }
51      aubio_wavetable_do (wavetable, obuf, obuf);
52      /* end of block loop */
53      pos = -1; /* so it will be zero next j loop */
54    }
55    pos++;
56  }
57  return 1;
58}
59
60static void process_print (void) {
61      if (!verbose && usejack) return;
62      smpl_t pitch_found = fvec_read_sample(pitch, 0);
63      outmsg("%f %f\n",(frames) 
64              *overlap_size/(float)samplerate, pitch_found);
65}
66
67int main(int argc, char **argv) {
68  examples_common_init(argc,argv);
69
70  o = new_aubio_pitch (pitch_method, buffer_size, overlap_size, samplerate);
71  pitch = new_fvec (1);
72
73  wavetable = new_aubio_wavetable (samplerate, overlap_size);
74  aubio_wavetable_play ( wavetable );
75
76  examples_common_process(aubio_process,process_print);
77
78  del_aubio_pitch (o);
79  del_aubio_wavetable (wavetable);
80  del_fvec (pitch);
81
82  examples_common_del();
83  debug("End of program.\n");
84  fflush(stderr);
85  return 0;
86}
87
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