ref: 1700a2d886b0ecf4b7b6008877fbeadd38cab0dc
dir: /examples/aubiopitch.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_PITCH 1 #define PROG_HAS_OUTPUT 1 #define PROG_HAS_JACK 1 #include "parse_args.h" aubio_pitch_t *o; aubio_wavetable_t *wavetable; fvec_t *pitch; void process_block(fvec_t * ibuf, fvec_t * obuf) { smpl_t freq; aubio_pitch_do (o, ibuf, pitch); if ( !usejack && ! sink_uri ) return; fvec_zeros(obuf); freq = fvec_get_sample(pitch, 0); aubio_wavetable_set_amp ( wavetable, aubio_level_lin (ibuf) ); aubio_wavetable_set_freq ( wavetable, freq ); if (mix_input) aubio_wavetable_do (wavetable, ibuf, obuf); else aubio_wavetable_do (wavetable, obuf, obuf); } void process_print (void) { smpl_t pitch_found = fvec_get_sample(pitch, 0); print_time(blocks * hop_size); outmsg(" %f\n", pitch_found); } int main(int argc, char **argv) { buffer_size = 2048; examples_common_init(argc,argv); verbmsg ("using source: %s at %dHz\n", source_uri, samplerate); verbmsg ("pitch method: %s, ", pitch_method); verbmsg ("pitch unit: %s, ", pitch_unit); verbmsg ("buffer_size: %d, ", buffer_size); verbmsg ("hop_size: %d, ", hop_size); verbmsg ("tolerance: %f\n", pitch_tolerance); o = new_aubio_pitch (pitch_method, buffer_size, hop_size, samplerate); if (pitch_tolerance != 0.) aubio_pitch_set_tolerance (o, pitch_tolerance); if (silence_threshold != -90.) aubio_pitch_set_silence (o, silence_threshold); if (pitch_unit != NULL) aubio_pitch_set_unit (o, pitch_unit); pitch = new_fvec (1); wavetable = new_aubio_wavetable (samplerate, hop_size); aubio_wavetable_play ( wavetable ); examples_common_process((aubio_process_func_t)process_block,process_print); del_aubio_pitch (o); del_aubio_wavetable (wavetable); del_fvec (pitch); examples_common_del(); return 0; }