gr_agc_ff.h

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/* -*- c++ -*- */
/*
 * Copyright 2005,2006 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_GR_AGC_FF_H
#define INCLUDED_GR_AGC_FF_H

#include <gr_sync_block.h>
#include <gri_agc_ff.h>
class gr_agc_ff;
typedef boost::shared_ptr<gr_agc_ff> gr_agc_ff_sptr;

gr_agc_ff_sptr
gr_make_agc_ff (float rate = 1e-4, float reference = 1.0, 
                float gain = 1.0, float max_gain = 0.0);

/*!
 * \brief high performance Automatic Gain Control class
 * \ingroup level_blk
 *
 * Power is approximated by absolute value
 */

class gr_agc_ff : public gr_sync_block, public gri_agc_ff
{
  friend gr_agc_ff_sptr gr_make_agc_ff (float rate, float reference, 
                                        float gain, float max_gain);
  gr_agc_ff (float rate, float reference, float gain, float max_gain);

 public:
  virtual int work (int noutput_items,
                    gr_vector_const_void_star &input_items,
                    gr_vector_void_star &output_items);
};

#endif /* INCLUDED_GR_FLOAT_AGC_FF_H */