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/* -*- c++ -*- */
/*
* Copyright 2006,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_ANALOG_SQUELCH_BASE_CC_H
#define INCLUDED_ANALOG_SQUELCH_BASE_CC_H
#include <analog/api.h>
#include <gr_block.h>
namespace gr {
namespace analog {
/*!
* \brief basic squelch block; to be subclassed for other squelches.
* \ingroup level_blk
*/
class ANALOG_API squelch_base_cc : virtual public gr_block
{
protected:
virtual void update_state(const float &sample) = 0;
virtual bool mute() const = 0;
public:
squelch_base_cc() {};
virtual int ramp() const = 0;
virtual void set_ramp(int ramp) = 0;
virtual bool gate() const = 0;
virtual void set_gate(bool gate) = 0;
virtual bool unmuted() const = 0;
virtual std::vector<float> squelch_range() const = 0;
};
} /* namespace analog */
} /* namespace gr */
#endif /* INCLUDED_ANALOG_SQUELCH_BASE_CC_H */
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