2 Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>
4 This file is part of aubio.
6 aubio is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 aubio is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with aubio. If not, see <http://www.gnu.org/licenses/>.
23 Peak picking utilities function
34 /** function pointer to thresholding function */
35 typedef smpl_t (*aubio_thresholdfn_t)(fvec_t *input, uint_t channel);
36 /** function pointer to peak-picking function */
37 typedef uint_t (*aubio_pickerfn_t)(fvec_t *input, uint_t pos);
38 /** peak-picker structure */
39 typedef struct _aubio_peakpicker_t aubio_peakpicker_t;
41 /** peak-picker creation function */
42 aubio_peakpicker_t * new_aubio_peakpicker(uint_t channels);
43 /** real time peak picking function */
44 void aubio_peakpicker_do(aubio_peakpicker_t * p, fvec_t * in, fvec_t * out);
45 /** get current peak value */
46 smpl_t aubio_peakpicker_get_thresholded_input(aubio_peakpicker_t * p);
47 /** destroy peak picker structure */
48 void del_aubio_peakpicker(aubio_peakpicker_t * p);
50 /** set peak picking threshold */
51 uint_t aubio_peakpicker_set_threshold(aubio_peakpicker_t * p, smpl_t threshold);
52 /** get peak picking threshold */
53 smpl_t aubio_peakpicker_get_threshold(aubio_peakpicker_t * p);
54 /** set peak picker thresholding function */
55 uint_t aubio_peakpicker_set_thresholdfn(aubio_peakpicker_t * p, aubio_thresholdfn_t thresholdfn);
56 /** get peak picker thresholding function */
57 aubio_thresholdfn_t aubio_peakpicker_get_thresholdfn(aubio_peakpicker_t * p);
63 #endif /* PEAKPICK_H */