ref: fb615ebd7e57253d9f19a29b22147e822bdd8d5b
dir: /examples/aubionotes.c/
/* Copyright (C) 2003 Paul Brossier This program 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 2 of the License, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "utils.h" unsigned int pos = 0; /*frames%dspblocksize*/ uint_t usepitch = 1; int aubio_process(float **input, float **output, int nframes); int aubio_process(float **input, float **output, int nframes) { unsigned int i; /*channels*/ unsigned int j; /*frames*/ for (j=0;j<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_pvoc_do (pv,ibuf, fftgrain); aubio_onsetdetection(o,fftgrain, onset); if (usedoubled) { aubio_onsetdetection(o2,fftgrain, onset2); onset->data[0][0] *= onset2->data[0][0]; } isonset = aubio_peakpick_pimrt(onset,parms); pitch = aubio_pitchdetection(pitchdet,ibuf); if(median){ note_append(note_buffer, pitch); } /* curlevel is negatif or 1 if silence */ curlevel = aubio_level_detection(ibuf, threshold2); if (isonset) { /* test for silence */ if (curlevel == 1.) { isonset=0; if (median) isready = 0; /* send note off */ send_noteon(curnote,0); } else { if (median) { isready = 1; } else { /* kill old note */ send_noteon(curnote,0); /* get and send new one */ send_noteon(pitch,127+(int)FLOOR(curlevel)); curnote = pitch; } for (pos = 0; pos < overlap_size; pos++){ obuf->data[0][pos] = woodblock->data[0][pos]; } } } else { if (median) { if (isready > 0) isready++; if (isready == median) { /* kill old note */ send_noteon(curnote,0); newnote = get_note(note_buffer, note_buffer2); curnote = newnote; /* get and send new one */ if (curnote>45){ send_noteon(curnote,127+(int)FLOOR(curlevel)); } } } // if median for (pos = 0; pos < overlap_size; pos++) obuf->data[0][pos] = 0.; } /* end of block loop */ pos = -1; /* so it will be zero next j loop */ } pos++; } return 1; } void process_print (void); void process_print (void) { if (verbose) outmsg("%f\n",pitch); } int main(int argc, char **argv) { examples_common_init(argc,argv); examples_common_process(aubio_process, process_print); examples_common_del(); debug("End of program.\n"); fflush(stderr); return 0; }