1 /* -*- c++ -*- */
2 /*
3  * Copyright 2007,2013,2018 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
7  * GNU Radio is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 3, or (at your option)
10  * any later version.
11  *
12  * GNU Radio is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with GNU Radio; see the file COPYING.  If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef PEAK_DETECTOR_IMPL_H
24 #define PEAK_DETECTOR_IMPL_H
25 
26 #include <gnuradio/blocks/peak_detector.h>
27 
28 namespace gr {
29 namespace blocks {
30 
31 template <class T>
32 class peak_detector_impl : public peak_detector<T>
33 {
34 private:
35     float d_threshold_factor_rise;
36     float d_threshold_factor_fall;
37     int d_look_ahead;
38     float d_avg_alpha;
39     float d_avg;
40 
41 public:
42     peak_detector_impl(float threshold_factor_rise,
43                        float threshold_factor_fall,
44                        int look_ahead,
45                        float alpha);
46     ~peak_detector_impl();
47 
set_threshold_factor_rise(float thr)48     void set_threshold_factor_rise(float thr) { d_threshold_factor_rise = thr; }
set_threshold_factor_fall(float thr)49     void set_threshold_factor_fall(float thr) { d_threshold_factor_fall = thr; }
set_look_ahead(int look)50     void set_look_ahead(int look) { d_look_ahead = look; }
set_alpha(float alpha)51     void set_alpha(float alpha) { d_avg_alpha = alpha; }
threshold_factor_rise()52     float threshold_factor_rise() { return d_threshold_factor_rise; }
threshold_factor_fall()53     float threshold_factor_fall() { return d_threshold_factor_fall; }
look_ahead()54     int look_ahead() { return d_look_ahead; }
alpha()55     float alpha() { return d_avg_alpha; }
56 
57     int work(int noutput_items,
58              gr_vector_const_void_star& input_items,
59              gr_vector_void_star& output_items);
60 };
61 
62 } /* namespace blocks */
63 } /* namespace gr */
64 
65 #endif /* PEAK_DETECTOR_IMPL_H */
66