3 * Copyright 2005 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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)
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.
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.
22 #ifndef INCLUDED_GR_RMS_FF_H
23 #define INCLUDED_GR_RMS_FF_H
25 #include <gr_sync_block.h>
26 #include <gr_single_pole_iir.h>
29 typedef boost::shared_ptr<gr_rms_ff> gr_rms_ff_sptr;
32 gr_make_rms_ff (double alpha = 0.0001);
35 * \brief RMS average power
38 class gr_rms_ff : public gr_sync_block
40 gr_single_pole_iir<double,double,double> d_iir;
44 gr_make_rms_ff (double alpha);
46 gr_rms_ff (double alpha);
51 int work (int noutput_items,
52 gr_vector_const_void_star &input_items,
53 gr_vector_void_star &output_items);
55 bool unmuted () const { return d_unmuted; }
57 void set_alpha (double alpha);
60 #endif /* INCLUDED_GR_RMS_FF_H */