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/* -*- c++ -*- */
/*
* Copyright 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_BIN_STATISTICS_F_H
#define INCLUDED_GR_BIN_STATISTICS_F_H
#include <gr_core_api.h>
#include <gr_sync_block.h>
#include <gr_feval.h>
#include <gr_message.h>
#include <gr_msg_queue.h>
class gr_bin_statistics_f;
typedef boost::shared_ptr<gr_bin_statistics_f> gr_bin_statistics_f_sptr;
GR_CORE_API gr_bin_statistics_f_sptr
gr_make_bin_statistics_f(unsigned int vlen, // vector length
gr_msg_queue_sptr msgq,
gr_feval_dd *tune, // callback
size_t tune_delay, // samples
size_t dwell_delay); // samples
/*!
* \brief control scanning and record frequency domain statistics
* \ingroup sink_blk
*/
class GR_CORE_API gr_bin_statistics_f : public gr_sync_block
{
friend GR_CORE_API gr_bin_statistics_f_sptr
gr_make_bin_statistics_f(unsigned int vlen, // vector length
gr_msg_queue_sptr msgq,
gr_feval_dd *tune, // callback
size_t tune_delay, // samples
size_t dwell_delay); // samples
enum state_t { ST_INIT, ST_TUNE_DELAY, ST_DWELL_DELAY };
size_t d_vlen;
gr_msg_queue_sptr d_msgq;
gr_feval_dd *d_tune;
size_t d_tune_delay;
size_t d_dwell_delay;
double d_center_freq;
state_t d_state;
size_t d_delay; // nsamples remaining to state transition
gr_bin_statistics_f(unsigned int vlen,
gr_msg_queue_sptr msgq,
gr_feval_dd *tune,
size_t tune_delay,
size_t dwell_delay);
void enter_init();
void enter_tune_delay();
void enter_dwell_delay();
void leave_dwell_delay();
protected:
std::vector<float> d_max; // per bin maxima
size_t vlen() const { return d_vlen; }
double center_freq() const { return d_center_freq; }
gr_msg_queue_sptr msgq() const { return d_msgq; }
virtual void reset_stats();
virtual void accrue_stats(const float *input);
virtual void send_stats();
public:
~gr_bin_statistics_f();
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
#endif
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