ref: 3bf80b9872d63282409dfc876e3dc29140c134ef
dir: /examples/aubioonset.c/
/* Copyright (C) 2003-2013 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" #define PROG_HAS_ONSET 1 #define PROG_HAS_OUTPUT 1 #define PROG_HAS_JACK 1 #include "parse_args.h" aubio_onset_t *o; aubio_wavetable_t *wavetable; fvec_t *onset; smpl_t is_onset; void process_block(fvec_t *ibuf, fvec_t *obuf) { aubio_onset_do (o, ibuf, onset); is_onset = fvec_get_sample(onset, 0); if ( !usejack && ! sink_uri ) return; fvec_zeros(obuf); if ( is_onset ) { aubio_wavetable_play ( wavetable ); } else { aubio_wavetable_stop ( wavetable ); } if (mix_input) aubio_wavetable_do (wavetable, ibuf, obuf); else aubio_wavetable_do (wavetable, obuf, obuf); } void process_print (void) { if ( is_onset ) { print_time(aubio_onset_get_last (o)); outmsg ("\n"); } } int main(int argc, char **argv) { examples_common_init(argc,argv); verbmsg ("using source: %s at %dHz\n", source_uri, samplerate); verbmsg ("onset method: %s, ", onset_method); verbmsg ("buffer_size: %d, ", buffer_size); verbmsg ("hop_size: %d, ", hop_size); verbmsg ("silence: %f, ", silence_threshold); verbmsg ("threshold: %f\n", onset_threshold); o = new_aubio_onset (onset_method, buffer_size, hop_size, samplerate); if (onset_threshold != 0.) aubio_onset_set_threshold (o, onset_threshold); if (silence_threshold != -90.) aubio_onset_set_silence (o, silence_threshold); onset = new_fvec (1); wavetable = new_aubio_wavetable (samplerate, hop_size); aubio_wavetable_set_freq ( wavetable, 2450.); //aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff"); examples_common_process((aubio_process_func_t)process_block, process_print); del_aubio_onset (o); del_aubio_wavetable (wavetable); del_fvec (onset); examples_common_del(); return 0; }