GNU Radio 3.6.3 C++ API
gr_rms_cf.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2005 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 #ifndef INCLUDED_GR_RMS_CF_H
23 #define INCLUDED_GR_RMS_CF_H
24 
25 #include <gr_core_api.h>
26 #include <gr_sync_block.h>
27 #include <gr_single_pole_iir.h>
28 
29 class gr_rms_cf;
31 
33 gr_make_rms_cf (double alpha = 0.0001);
34 
35 /*!
36  * \brief RMS average power
37  * \ingroup math_blk
38  */
40 {
42  bool d_unmuted;
43 
45  gr_make_rms_cf (double alpha);
46 
47  gr_rms_cf (double alpha);
48 
49 public:
50  ~gr_rms_cf ();
51 
52  int work (int noutput_items,
53  gr_vector_const_void_star &input_items,
54  gr_vector_void_star &output_items);
55 
56  bool unmuted () const { return d_unmuted; }
57 
58  void set_alpha (double alpha);
59 };
60 
61 #endif /* INCLUDED_GR_RMS_CF_H */