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/* -*- c++ -*- */
/*
* Copyright 2008,2012 Free Software Foundation, Inc.
*
* 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_PROBE_DENSITY_B_H
#define INCLUDED_GR_PROBE_DENSITY_B_H
#include <digital/api.h>
#include <gr_sync_block.h>
namespace gr {
namespace digital {
/*!
* This block maintains a running average of the input stream and
* makes it available as an accessor function. The input stream
* is type unsigned char.
*
* If you send this block a stream of unpacked bytes, it will tell
* you what the bit density is.
*/
class DIGITAL_API probe_density_b : virtual public gr_sync_block
{
public:
// gr::digital::probe_density_b::sptr
typedef boost::shared_ptr<probe_density_b> sptr;
/*!
* Make a density probe block.
*
* \param alpha Average filter constant
*
*/
static sptr make(double alpha);
/*!
* \brief Returns the current density value
*/
virtual double density() const = 0;
/*!
* \brief Set the average filter constant
*/
virtual void set_alpha(double alpha) = 0;
};
} /* namespace digital */
} /* namespace gr */
#endif /* INCLUDED_GR_PROBE_DENSITY_B_H */
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