source: examples/aubiotrack.c @ 740f06b

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since 740f06b was d4c5de7, checked in by Paul Brossier <piem@piem.org>, 11 years ago

examples/: make use of aubio_onset in aubioonset and aubionotes, simplify, keep only general stuff in utils

  • Property mode set to 100644
File size: 2.9 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 <aubio.h>
20#include "utils.h"
21
22uint_t pos = 0;    /* frames%dspblocksize */
23fvec_t * tempo_out = NULL;
24aubio_tempo_t * bt = NULL;
25smpl_t istactus = 0;
26smpl_t isonset = 0;
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_tempo_do (bt,ibuf,tempo_out);
44      if (tempo_out->data[0][0]>0) 
45        istactus = tempo_out->data[0][0];
46      else 
47        istactus = 0;
48      if (tempo_out->data[0][1]>0) 
49        isonset = tempo_out->data[0][0];
50      else 
51        isonset = 0;
52      if (istactus) {
53              for (pos = 0; pos < overlap_size; pos++)
54                      obuf->data[0][pos] = woodblock->data[0][pos];
55      } else {
56              for (pos = 0; pos < overlap_size; pos++)
57                      obuf->data[0][pos] = 0.;
58      }
59      /* end of block loop */
60      pos = -1; /* so it will be zero next j loop */
61    }
62    pos++;
63  }
64  return 1;
65}
66
67static void process_print (void) {
68        if (output_filename == NULL) {
69                if (istactus) {
70                        outmsg("%f\n",((smpl_t)(frames*overlap_size)+(istactus-1.)*overlap_size)/(smpl_t)samplerate); 
71                }
72                if (isonset && verbose)
73                        outmsg(" \t \t%f\n",(frames)*overlap_size/(float)samplerate);
74        }
75}
76
77int main(int argc, char **argv) {
78 
79  buffer_size = 1024;
80  overlap_size = 512;
81  /* override default settings */
82  examples_common_init(argc,argv);
83
84  tempo_out = new_fvec(2,channels);
85  bt = new_aubio_tempo(onset_mode,buffer_size,overlap_size,channels, samplerate);
86
87  examples_common_process(aubio_process,process_print);
88
89  del_aubio_tempo(bt);
90  del_fvec(tempo_out);
91
92  examples_common_del();
93
94  debug("End of program.\n");
95
96  fflush(stderr);
97
98  return 0;
99}
100
Note: See TracBrowser for help on using the repository browser.