GNU Radio 3.6.5 C++ API

probe_avg_mag_sqrd_cf_impl.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2005,2006,2012 Free Software Foundation, Inc.
00004  *
00005  * This file is part of GNU Radio
00006  *
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 3, or (at your option)
00010  * any later version.
00011  *
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_ANALOG_PROBE_AVG_MAG_SQRD_CF_IMPL_H
00024 #define INCLUDED_ANALOG_PROBE_AVG_MAG_SQRD_CF_IMPL_H
00025 
00026 #include <analog/probe_avg_mag_sqrd_cf.h>
00027 #include <filter/single_pole_iir.h>
00028 
00029 namespace gr {
00030   namespace analog {
00031 
00032     class probe_avg_mag_sqrd_cf_impl : public probe_avg_mag_sqrd_cf
00033     {
00034     private:
00035       double d_threshold;
00036       bool d_unmuted;
00037       double d_level;
00038       filter::single_pole_iir<double,double,double> d_iir;
00039 
00040     public:
00041       probe_avg_mag_sqrd_cf_impl(double threshold_db, double alpha);
00042       ~probe_avg_mag_sqrd_cf_impl();
00043 
00044       bool unmuted() const { return d_unmuted; }
00045       double level() const { return d_level; }
00046 
00047       double threshold() const;
00048 
00049       void set_alpha(double alpha);
00050       void set_threshold(double decibels);
00051 
00052       int work(int noutput_items,
00053                gr_vector_const_void_star &input_items,
00054                gr_vector_void_star &output_items);
00055     };
00056 
00057   } /* namespace analog */
00058 } /* namespace gr */
00059 
00060 #endif /* INCLUDED_ANALOG_PROBE_AVG_MAG_SQRD_CF_IMPL_H */