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/* -*- c++ -*- */
/*
* Copyright 2004,2010,2012,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "sccc_encoder_impl.h"
#include <gnuradio/io_signature.h>
#include <iostream>
namespace gr {
namespace trellis {
template <class IN_T, class OUT_T>
typename sccc_encoder<IN_T, OUT_T>::sptr
sccc_encoder<IN_T, OUT_T>::make(const fsm& FSMo,
int STo,
const fsm& FSMi,
int STi,
const interleaver& INTERLEAVER,
int blocklength)
{
return gnuradio::get_initial_sptr(new sccc_encoder_impl<IN_T, OUT_T>(
FSMo, STo, FSMi, STi, INTERLEAVER, blocklength));
}
template <class IN_T, class OUT_T>
sccc_encoder_impl<IN_T, OUT_T>::sccc_encoder_impl(const fsm& FSMo,
int STo,
const fsm& FSMi,
int STi,
const interleaver& INTERLEAVER,
int blocklength)
: sync_block("sccc_encoder<IN_T,OUT_T>",
io_signature::make(1, 1, sizeof(IN_T)),
io_signature::make(1, 1, sizeof(OUT_T))),
d_FSMo(FSMo),
d_STo(STo),
d_FSMi(FSMi),
d_STi(STi),
d_INTERLEAVER(INTERLEAVER),
d_blocklength(blocklength)
{
this->set_output_multiple(d_blocklength);
d_buffer.resize(d_blocklength);
}
template <class IN_T, class OUT_T>
sccc_encoder_impl<IN_T, OUT_T>::~sccc_encoder_impl()
{
}
template <class IN_T, class OUT_T>
int sccc_encoder_impl<IN_T, OUT_T>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
for (int b = 0; b < noutput_items / d_blocklength; b++) {
const IN_T* in = (const IN_T*)input_items[0] + b * d_blocklength;
OUT_T* out = (OUT_T*)output_items[0] + b * d_blocklength;
int STo_tmp = d_STo;
for (int i = 0; i < d_blocklength; i++) {
d_buffer[i] = d_FSMo.OS()[STo_tmp * d_FSMo.I() + in[i]];
STo_tmp = (int)d_FSMo.NS()[STo_tmp * d_FSMo.I() + in[i]];
}
int STi_tmp = d_STi;
for (int i = 0; i < d_blocklength; i++) {
int k = d_INTERLEAVER.INTER()[i];
out[i] = (OUT_T)d_FSMi.OS()[STi_tmp * d_FSMi.I() + d_buffer[k]];
STi_tmp = (int)d_FSMi.NS()[STi_tmp * d_FSMi.I() + d_buffer[k]];
}
}
return noutput_items;
}
template class sccc_encoder<std::uint8_t, std::uint8_t>;
template class sccc_encoder<std::uint8_t, std::int16_t>;
template class sccc_encoder<std::uint8_t, std::int32_t>;
template class sccc_encoder<std::int16_t, std::int16_t>;
template class sccc_encoder<std::int16_t, std::int32_t>;
template class sccc_encoder<std::int32_t, std::int32_t>;
} /* namespace trellis */
} /* namespace gr */
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