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/* -*- c++ -*- */
/*
* Copyright 2004,2010,2012 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.
*/
// @WARNING@
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "@NAME@.h"
#include <gnuradio/io_signature.h>
#include <iostream>
#include <gnuradio/trellis/core_algorithms.h>
namespace gr {
namespace trellis {
static const float INF = 1.0e9;
@BASE_NAME@::sptr
@BASE_NAME@::make(const fsm &FSM1, int ST10, int ST1K,
const fsm &FSM2, int ST20, int ST2K,
const interleaver &INTERLEAVER,
int blocklength,
int repetitions,
siso_type_t SISO_TYPE)
{
return gnuradio::get_initial_sptr
(new @IMPL_NAME@(FSM1, ST10, ST1K,
FSM2, ST20, ST2K,
INTERLEAVER,
blocklength,
repetitions,
SISO_TYPE));
}
@IMPL_NAME@::@IMPL_NAME@(const fsm &FSM1, int ST10, int ST1K,
const fsm &FSM2, int ST20, int ST2K,
const interleaver &INTERLEAVER,
int blocklength,
int repetitions,
siso_type_t SISO_TYPE)
: block("@BASE_NAME@",
io_signature::make(1, 1, sizeof(float)),
io_signature::make(1, 1, sizeof(@O_TYPE@))),
d_FSM1(FSM1), d_ST10(ST10), d_ST1K(ST1K),
d_FSM2(FSM2), d_ST20(ST20), d_ST2K(ST2K),
d_INTERLEAVER(INTERLEAVER),
d_blocklength(blocklength),
d_repetitions(repetitions),
d_SISO_TYPE(SISO_TYPE)
{
set_relative_rate (1.0 / ((double) d_FSM1.O() * d_FSM2.O()));
set_output_multiple (d_blocklength);
}
@IMPL_NAME@::~@IMPL_NAME@()
{
}
void
@IMPL_NAME@::forecast(int noutput_items,
gr_vector_int &ninput_items_required)
{
int input_required = d_FSM1.O() * d_FSM2.O() * noutput_items;
ninput_items_required[0] = input_required;
}
//===========================================================
int
@IMPL_NAME@::general_work(int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
int nblocks = noutput_items / d_blocklength;
float (*p2min)(float, float) = NULL;
if(d_SISO_TYPE == TRELLIS_MIN_SUM)
p2min = &min;
else if(d_SISO_TYPE == TRELLIS_SUM_PRODUCT)
p2min = &min_star;
const float *in = (const float *) input_items[0];
@O_TYPE@ *out = (@O_TYPE@ *) output_items[0];
for(int n=0;n<nblocks;n++) {
pccc_decoder(d_FSM1, d_ST10, d_ST1K,
d_FSM2, d_ST20, d_ST2K,
d_INTERLEAVER, d_blocklength, d_repetitions,
p2min,
&(in[n*d_blocklength*d_FSM1.O()*d_FSM2.O()]),
&(out[n*d_blocklength]));
}
consume_each(d_FSM1.O() * d_FSM2.O() * noutput_items);
return noutput_items;
}
} /* namespace trellis */
} /* namespace gr */
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