GNU Radio Manual and C++ API Reference  3.7.8
The Free & Open Software Radio Ecosystem
ldpc_decoder.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2015 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
7  * GNU Radio is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 3, or (at your option)
10  * any later version.
11  *
12  * GNU Radio is distributed in the hope that it will be useful,
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14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with GNU Radio; see the file COPYING. If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street,
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21  */
22 
23 #ifndef INCLUDED_LDPC_DECODER_H
24 #define INCLUDED_LDPC_DECODER_H
25 
26 typedef float INPUT_DATATYPE;
27 typedef unsigned char OUTPUT_DATATYPE;
28 
29 #include <map>
30 #include <string>
31 #include <gnuradio/fec/decoder.h>
32 #include <vector>
33 
34 #include <gnuradio/fec/cldpc.h>
35 #include <gnuradio/fec/alist.h>
36 #include <gnuradio/fec/awgn_bp.h>
37 
38 namespace gr {
39  namespace fec {
40 
41 
42 #define MAXLOG 1e7
43 
45  //private constructor
46  ldpc_decoder (std::string alist_file, float sigma, int max_iterations);
47 
48  //plug into the generic fec api
49  int get_history();
50  float get_shift();
51  const char* get_conversion();
52  void generic_work(void *inBuffer, void *outbuffer);
53  float d_iterations;
54  int inputSize, outputSize;
55 
56  alist d_list;
57  cldpc d_code;
58  awgn_bp d_spa;
59 
60  public:
61  ~ldpc_decoder ();
62 
63  double rate() { return (1.0*get_output_size() / get_input_size()); }
64  bool set_frame_size(unsigned int frame_size) { return false; }
65 
67  make (std::string alist_file, float sigma=0.5, int max_iterations=50);
68  int get_output_size();
69  int get_input_size();
70  int get_input_item_size();
71  int get_output_item_size();
72  float get_iterations(){ return d_iterations; }
73 
74 };
75 
76 }
77 }
78 
79 #endif /* INCLUDED_LDPC_DECODER_H */
float get_iterations()
Definition: ldpc_decoder.h:72
Definition: alist.h:44
Parent class for FECAPI objects.
Definition: generic_decoder.h:60
Definition: ldpc_decoder.h:44
Definition: cldpc.h:35
Include this header to use the message passing features.
Definition: basic_block.h:45
float INPUT_DATATYPE
Definition: ldpc_decoder.h:26
#define FEC_API
Definition: gr-fec/include/gnuradio/fec/api.h:30
unsigned char OUTPUT_DATATYPE
Definition: ldpc_decoder.h:27
double rate()
Definition: ldpc_decoder.h:63
FEC_API int get_history(generic_decoder::sptr my_decoder)
FEC_API float get_shift(generic_decoder::sptr my_decoder)
boost::shared_ptr< generic_decoder > sptr
Definition: generic_decoder.h:75
bool set_frame_size(unsigned int frame_size)
Definition: ldpc_decoder.h:64
Definition: awgn_bp.h:46