GNU Radio 3.6.5 C++ API

squelch_base_ff.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 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_SQUELCH_BASE_FF_H
00024 #define INCLUDED_ANALOG_SQUELCH_BASE_FF_H
00025 
00026 #include <analog/api.h>
00027 #include <gr_block.h>
00028 
00029 namespace gr {
00030   namespace analog {
00031 
00032     /*!
00033      * \brief basic squelch block; to be subclassed for other squelches.
00034      * \ingroup level_blk
00035      */
00036     class ANALOG_API squelch_base_ff : virtual public gr_block
00037     {
00038     protected:
00039       virtual void update_state(const float &sample) = 0;
00040       virtual bool mute() const = 0;
00041 
00042     public:
00043       squelch_base_ff() {};
00044       virtual int ramp() const = 0;
00045       virtual void set_ramp(int ramp) = 0;
00046       virtual bool gate() const = 0;
00047       virtual void set_gate(bool gate) = 0;
00048       virtual bool unmuted() const = 0;
00049 
00050       virtual std::vector<float> squelch_range() const = 0;
00051     };
00052 
00053   } /* namespace analog */
00054 } /* namespace gr */
00055 
00056 #endif /* INCLUDED_ANALOG_SQUELCH_BASE_FF_H */