/* -*- 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 <gnuradio/digital/api.h> #include <gnuradio/sync_block.h> namespace gr { namespace digital { /*! * \ingroup measurement_tools_blk * * 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 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 */