GNU Radio 2.x: gr_probe_avg_mag_sqrd_c.h Source File

Main Page | Modules | Namespace List | Class Hierarchy | Class List | File List | Class Members | File Members

# gr_probe_avg_mag_sqrd_c.h

Go to the documentation of this file.

    00001 /* -*- c++ -*- */
    00002 /*
    00003  * Copyright 2005 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 2, 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., 59 Temple Place - Suite 330,
    00020  * Boston, MA 02111-1307, USA.
    00021  */
    00022 #ifndef INCLUDED_GR_PROBE_AVG_MAG_SQRD_C_H
    00023 #define INCLUDED_GR_PROBE_AVG_MAG_SQRD_C_H
    00024
    00025 #include <gr_sync_block.h>
    00026 #include <gr_single_pole_iir.h>
    00027
    00028 class gr_probe_avg_mag_sqrd_c;
    00029 typedef boost::shared_ptr<gr_probe_avg_mag_sqrd_c> gr_probe_avg_mag_sqrd_c_sptr;
    00030
    00031 gr_probe_avg_mag_sqrd_c_sptr
    00032 gr_make_probe_avg_mag_sqrd_c (double threshold_db, double alpha = 0.0001);
    00033
    00044 class gr_probe_avg_mag_sqrd_c : public gr_sync_block
    00045 {
    00046   double                                        d_threshold;
    00047   gr_single_pole_iir<double,double,double>      d_iir;
    00048   bool                                          d_unmuted;
    00049   double                                        d_level;
    00050
    00051   friend gr_probe_avg_mag_sqrd_c_sptr
    00052   gr_make_probe_avg_mag_sqrd_c (double threshold_db, double alpha);
    00053
    00054   gr_probe_avg_mag_sqrd_c (double threshold_db, double alpha);
    00055
    00056 public:
    00057   ~gr_probe_avg_mag_sqrd_c ();
    00058
    00059   int work (int noutput_items,
    00060             gr_vector_const_void_star &input_items,
    00061             gr_vector_void_star &output_items);
    00062
    00063   bool unmuted () const { return d_unmuted; }
    00064   double level () const { return d_level; }
    00065
    00066   void set_alpha (double alpha);
    00067   void set_threshold (double decibels);
    00068 };
    00069
    00070 #endif /* INCLUDED_GR_PROBE_AVG_MAG_SQRD_C_H */