source: examples/aubioquiet.c @ c17a0ee

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since c17a0ee was 6a2478c, checked in by Paul Brossier <piem@piem.org>, 10 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*/
24sint_t wassilence = 1, issilence;
25
26int aubio_process(smpl_t **input, smpl_t **output, int nframes);
27int aubio_process(smpl_t **input, smpl_t **output, int nframes) {
28  unsigned int i;       /*channels*/
29  unsigned int j;       /*frames*/
30  for (j=0;j<(unsigned)nframes;j++) {
31    if(usejack) {
32      for (i=0;i<channels;i++) {
33        /* write input to datanew */
34        fvec_write_sample(ibuf, input[i][j], i, pos);
35        /* put synthnew in output */
36        output[i][j] = fvec_read_sample(obuf, i, pos);
37      }
38    }
39    /*time for fft*/
40    if (pos == overlap_size-1) {         
41      /* test for silence */
42      if (aubio_silence_detection(ibuf, silence)==1) {
43        if (wassilence==1) issilence = 1;
44        else issilence = 2;
45        wassilence=1;
46      } else { 
47        if (wassilence<=0) issilence = 0;
48        else issilence = -1;
49        wassilence=0;
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      int curframes = (frames - 4) > 0 ? frames -4 : 0;
61      if (issilence == -1) {
62          outmsg("NOISY: %f\n",curframes*overlap_size/(float)samplerate);
63      } else if (issilence == 2) { 
64          outmsg("QUIET: %f\n",curframes*overlap_size/(float)samplerate);
65      }
66}
67
68int main(int argc, char **argv) {
69  examples_common_init(argc,argv);
70  examples_common_process(aubio_process,process_print);
71  examples_common_del();
72  debug("End of program.\n");
73  fflush(stderr);
74  return 0;
75}
76
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