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/* -*- c++ -*- */
/*
* Copyright 2004,2007 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_DAB_MEASURE_BER_B_H
#define INCLUDED_DAB_MEASURE_BER_B_H
#include <gr_sync_block.h>
class dab_measure_ber_b;
typedef boost::shared_ptr<dab_measure_ber_b> dab_measure_ber_b_sptr;
dab_measure_ber_b_sptr dab_make_measure_ber_b();
/*!
* \brief Measure bit error rate of a byte stream
*
* input: port 0: actual byte stream
* input: port 1: expected byte stream
*
* \ingroup sink
*/
class dab_measure_ber_b : public gr_sync_block
{
friend dab_measure_ber_b_sptr dab_make_measure_ber_b();
private:
unsigned long d_bytes;
unsigned long d_errors;
protected:
unsigned int bits_set(char byte);
dab_measure_ber_b();
public:
/*! clear error and byte count */
void clear() { d_errors=0; d_bytes=0; }
/*! \return bit error rate */
float ber() { return (float)d_errors/(float)(d_bytes*8); }
/*! \return number of received bytes */
unsigned long bytecount() { return d_bytes; }
/*! \return number of received bits */
unsigned long bitcount() { return 8*d_bytes; }
/*! \return number of received bits with errors */
unsigned long errorcount() { return d_errors; }
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
#endif /* INCLUDED_DAB_MEASURE_BER_B_H */
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