source: examples/aubioonset.c @ fe163ad

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since fe163ad was fe163ad, checked in by Paul Brossier <piem@piem.org>, 11 years ago

src/pitch: use a string to set pitch method, add a new function to set pitch unit, keep pitch enums private, update pitch methods where they are used

  • Property mode set to 100644
File size: 2.6 KB
Line 
1/*
2   Copyright (C) 2003 Paul Brossier
3
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 2 of the License, or
7   (at your option) any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program; if not, write to the Free Software
16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17*/
18
19#include "utils.h"
20
21unsigned int pos = 0; /*frames%dspblocksize*/
22uint_t usepitch = 0;
23
24int aubio_process(smpl_t **input, smpl_t **output, int nframes);
25int aubio_process(smpl_t **input, smpl_t **output, int nframes) {
26  unsigned int i;       /*channels*/
27  unsigned int j;       /*frames*/
28  for (j=0;j<(unsigned)nframes;j++) {
29    if(usejack) {
30      for (i=0;i<channels;i++) {
31        /* write input to datanew */
32        fvec_write_sample(ibuf, input[i][j], i, pos);
33        /* put synthnew in output */
34        output[i][j] = fvec_read_sample(obuf, i, pos);
35      }
36    }
37    /*time for fft*/
38    if (pos == overlap_size-1) {         
39      /* block loop */
40      aubio_pvoc_do (pv,ibuf, fftgrain);
41      aubio_onsetdetection_do (o,fftgrain, onset);
42      isonset = aubio_peakpicker_do(parms, onset);
43      if (isonset) {
44        /* test for silence */
45        if (aubio_silence_detection(ibuf, silence)==1)
46          isonset=0.;
47        else
48          for (pos = 0; pos < overlap_size; pos++){
49            obuf->data[0][pos] = woodblock->data[0][pos];
50          }
51      } else {
52        for (pos = 0; pos < overlap_size; pos++)
53          obuf->data[0][pos] = 0.;
54      }
55      /* end of block loop */
56      pos = -1; /* so it will be zero next j loop */
57    }
58    pos++;
59  }
60  return 1;
61}
62
63void process_print (void);
64void process_print (void) {
65      /* output times in seconds, taking back some
66       * delay to ensure the label is _before_ the
67       * actual onset */
68      if (isonset && output_filename == NULL) {
69        if(frames >= 4) {
70          outmsg("%f\n",(frames - frames_delay + isonset)*overlap_size/(float)samplerate);
71        } else if (frames < frames_delay) {
72          outmsg("%f\n",0.);
73        }
74      }
75}
76
77int main(int argc, char **argv) {
78  frames_delay = 3;
79  examples_common_init(argc,argv);
80  examples_common_process(aubio_process,process_print);
81  examples_common_del();
82  debug("End of program.\n");
83  fflush(stderr);
84  return 0;
85}
86
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