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/* -*- c++ -*- */
/*
* Copyright 2013-2014 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.
*/
#ifndef INCLUDED_FEC_CCSDS_DECODER_IMPL_H
#define INCLUDED_FEC_CCSDS_DECODER_IMPL_H
#include <map>
#include <string>
#include <gnuradio/fec/ccsds_decoder.h>
extern "C" {
#include <gnuradio/fec/viterbi.h>
}
namespace gr {
namespace fec {
namespace code {
class FEC_API ccsds_decoder_impl : public ccsds_decoder
{
private:
//plug into the generic FECAPI
void generic_work(void *inbuffer, void *outbuffer);
int get_output_size();
int get_input_size();
int get_history();
float get_shift();
int get_input_item_size();
const char* get_input_conversion();
const char* get_output_conversion();
// Viterbi state
int d_mettab[2][256];
struct viterbi_state d_state0[64];
struct viterbi_state d_state1[64];
unsigned char d_viterbi_in[16];
int d_count;
unsigned int d_max_frame_size;
unsigned int d_frame_size;
cc_mode_t d_mode;
int *d_start_state;
int d_start_state_chaining;
int d_start_state_nonchaining;
int *d_end_state;
int d_end_state_chaining;
int d_end_state_nonchaining;
public:
ccsds_decoder_impl(int frame_size,
int start_state=0, int end_state=-1,
cc_mode_t mode=CC_STREAMING);
~ccsds_decoder_impl();
bool set_frame_size(unsigned int frame_size);
double rate();
};
} /* namespace code */
} /* namespace fec */
} /* namespace gr */
#endif /* INCLUDED_FEC_CCSDS_DECODER_IMPL_H */
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