ref: 0536612b984ce2c8b8a40764dec0e670e5235230
dir: /examples/aubiopitch.c/
/* Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org> This file is part of aubio. aubio is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. aubio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with aubio. If not, see <http://www.gnu.org/licenses/>. */ #include "utils.h" unsigned int pos = 0; /*frames%dspblocksize*/ aubio_pitch_t *o; fvec_t *pitch; static int aubio_process(smpl_t **input, smpl_t **output, int nframes) { unsigned int i; /*channels*/ unsigned int j; /*frames*/ for (j=0;j<(unsigned)nframes;j++) { if(usejack) { for (i=0;i<channels;i++) { /* write input to datanew */ fvec_write_sample(ibuf, input[i][j], i, pos); /* put synthnew in output */ output[i][j] = fvec_read_sample(obuf, i, pos); } } /*time for fft*/ if (pos == overlap_size-1) { /* block loop */ aubio_pitch_do (o, ibuf, pitch); if (fvec_read_sample(pitch, 0, 0)) { for (pos = 0; pos < overlap_size; pos++){ // TODO, play sine at this freq } } else { fvec_zeros (obuf); } /* end of block loop */ pos = -1; /* so it will be zero next j loop */ } pos++; } return 1; } static void process_print (void) { if (!verbose && usejack) return; smpl_t pitch_found = fvec_read_sample(pitch, 0, 0); outmsg("%f %f\n",(frames) *overlap_size/(float)samplerate, pitch_found); } int main(int argc, char **argv) { examples_common_init(argc,argv); o = new_aubio_pitch (onset_mode, buffer_size, overlap_size, channels, samplerate); pitch = new_fvec (1, channels); examples_common_process(aubio_process,process_print); del_aubio_pitch (o); del_fvec (pitch); examples_common_del(); debug("End of program.\n"); fflush(stderr); return 0; }