ref: 474f297fb978bf8247e820d51a425fb8d960ff5c
dir: /examples/aubiotrack.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 <aubio.h> #include "utils.h" uint_t pos = 0; /* frames%dspblocksize */ fvec_t * tempo_out = NULL; aubio_tempo_t * bt = NULL; smpl_t istactus = 0; smpl_t isonset = 0; 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_tempo_do (bt,ibuf,tempo_out); istactus = fvec_read_sample (tempo_out, 0); isonset = fvec_read_sample (tempo_out, 1); if (istactus > 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) { if (output_filename == NULL) { if (istactus) { outmsg("%f\n",((smpl_t)(frames*overlap_size)+(istactus-1.)*overlap_size)/(smpl_t)samplerate); } if (isonset && verbose) outmsg(" \t \t%f\n",(frames)*overlap_size/(float)samplerate); } } int main(int argc, char **argv) { buffer_size = 1024; overlap_size = 512; /* override default settings */ examples_common_init(argc,argv); tempo_out = new_fvec(2); bt = new_aubio_tempo(onset_mode,buffer_size,overlap_size, samplerate); if (threshold != 0.) aubio_tempo_set_threshold (bt, threshold); examples_common_process(aubio_process,process_print); del_aubio_tempo(bt); del_fvec(tempo_out); examples_common_del(); debug("End of program.\n"); fflush(stderr); return 0; }