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/* -*- c++ -*- */
/*
* Copyright 2014 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "repetition_encoder_impl.h"
#include <gnuradio/fec/generic_encoder.h>
#include <volk/volk.h>
#include <sstream>
namespace gr {
namespace fec {
namespace code {
generic_encoder::sptr
repetition_encoder::make(int frame_size, int rep)
{
return generic_encoder::sptr
(new repetition_encoder_impl(frame_size, rep));
}
repetition_encoder_impl::repetition_encoder_impl(int frame_size, int rep)
: generic_encoder("repetition_encoder")
{
d_max_frame_size = frame_size;
set_frame_size(frame_size);
if(rep < 0)
throw std::runtime_error("repetition_encoder: repetition rate must be >= 0");
d_rep = rep;
}
repetition_encoder_impl::~repetition_encoder_impl()
{
}
int
repetition_encoder_impl::get_output_size()
{
return d_frame_size*d_rep;
}
int
repetition_encoder_impl::get_input_size()
{
return d_frame_size;
}
bool
repetition_encoder_impl::set_frame_size(unsigned int frame_size)
{
bool ret = true;
if(frame_size > d_max_frame_size) {
GR_LOG_INFO(d_logger, boost::format("tried to set frame to %1%; max possible is %2%") \
% frame_size % d_max_frame_size);
frame_size = d_max_frame_size;
ret = false;
}
d_frame_size = frame_size;
return ret;
}
double
repetition_encoder_impl::rate()
{
return static_cast<double>(d_rep);
}
void
repetition_encoder_impl::generic_work(void *inbuffer, void *outbuffer)
{
const unsigned char *in = (const unsigned char*)inbuffer;
unsigned char *out = (unsigned char*)outbuffer;
for(unsigned int i = 0; i < d_frame_size; i++) {
for(unsigned int r = 0; r < d_rep; r++) {
out[d_rep*i + r] = in[i];
}
}
}
} /* namespace code */
} /* namespace fec */
} /* namespace gr */
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