ref: f84cea78af219f4de0fc7baa9eec82073263237e
dir: /examples/aubioonset.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_onset_t *o; fvec_t *onset; static int aubio_process(smpl_t **input, smpl_t **output, int nframes) { unsigned int j; /*frames*/ for (j=0;j<(unsigned)nframes;j++) { if(usejack) { /* write input to datanew */ fvec_write_sample(ibuf, input[0][j], pos); /* put synthnew in output */ output[0][j] = fvec_read_sample(obuf, pos); } /*time for fft*/ if (pos == overlap_size-1) { /* block loop */ aubio_onset_do (o, ibuf, onset); if ( fvec_read_sample(onset, 0) ) { fvec_copy (woodblock, obuf); } 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) { /* output times in seconds, taking back some delay to ensure the label is * _before_ the actual onset */ if (!verbose && usejack) return; smpl_t onset_found = fvec_read_sample (onset, 0); if (onset_found) { outmsg ("%f\n", aubio_onset_get_last_onset_s (o) ); } } int main(int argc, char **argv) { frames_delay = 3; examples_common_init(argc,argv); o = new_aubio_onset (onset_mode, buffer_size, overlap_size, samplerate); if (threshold != 0.) aubio_onset_set_threshold (o, threshold); onset = new_fvec (1); examples_common_process(aubio_process,process_print); del_aubio_onset (o); del_fvec (onset); examples_common_del(); debug("End of program.\n"); fflush(stderr); return 0; }