1 /* -*- c++ -*- */
2 /*
3  * Copyright 2006,2013 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 INCLUDED_GR_BIN_STATISTICS_F_IMPL_H
24 #define INCLUDED_GR_BIN_STATISTICS_F_IMPL_H
25 
26 #include <gnuradio/blocks/bin_statistics_f.h>
27 #include <gnuradio/feval.h>
28 #include <gnuradio/message.h>
29 #include <gnuradio/msg_queue.h>
30 
31 namespace gr {
32 namespace blocks {
33 
34 class bin_statistics_f_impl : public bin_statistics_f
35 {
36 private:
37     enum state_t { ST_INIT, ST_TUNE_DELAY, ST_DWELL_DELAY };
38 
39     size_t d_vlen;
40     msg_queue::sptr d_msgq;
41     feval_dd* d_tune;
42     size_t d_tune_delay;
43     size_t d_dwell_delay;
44     double d_center_freq;
45 
46     state_t d_state;
47     size_t d_delay; // nsamples remaining to state transition
48 
49     void enter_init();
50     void enter_tune_delay();
51     void enter_dwell_delay();
52     void leave_dwell_delay();
53 
54 protected:
55     std::vector<float> d_max; // per bin maxima
56 
vlen()57     size_t vlen() const { return d_vlen; }
center_freq()58     double center_freq() const { return d_center_freq; }
msgq()59     msg_queue::sptr msgq() const { return d_msgq; }
60 
61     virtual void reset_stats();
62     virtual void accrue_stats(const float* input);
63     virtual void send_stats();
64 
65 public:
66     bin_statistics_f_impl(unsigned int vlen,
67                           msg_queue::sptr msgq,
68                           feval_dd* tune,
69                           size_t tune_delay,
70                           size_t dwell_delay);
71     ~bin_statistics_f_impl();
72 
73     int work(int noutput_items,
74              gr_vector_const_void_star& input_items,
75              gr_vector_void_star& output_items);
76 };
77 
78 } /* namespace blocks */
79 } /* namespace gr */
80 
81 #endif /* INCLUDED_GR_BIN_STATISTICS_F_IMPL_H */
82