GNU Radio 3.6.5 C++ API
noaa_hrpt_decoder.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2009 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,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef INCLUDED_NOAA_HRPT_DECODER_H
24 #define INCLUDED_NOAA_HRPT_DECODER_H
25 
26 #include <noaa_api.h>
27 #include <gr_sync_block.h>
28 
29 class noaa_hrpt_decoder;
30 typedef boost::shared_ptr<noaa_hrpt_decoder> noaa_hrpt_decoder_sptr;
31 
32 NOAA_API noaa_hrpt_decoder_sptr
33 noaa_make_hrpt_decoder(bool verbose, bool output_files);
34 
35 /*!
36  * \brief NOAA HRPT Decoder
37  * \ingroup noaa_blk
38  */
39 class NOAA_API noaa_hrpt_decoder : public gr_sync_block
40 {
41  friend NOAA_API noaa_hrpt_decoder_sptr noaa_make_hrpt_decoder(bool verbose, bool output_files);
42  noaa_hrpt_decoder(bool verbose, bool output_files);
43 
44  // Configuration
45  bool d_verbose;
46  bool d_output_files;
47 
48  // Frame-level state
49  unsigned short d_current_word;
50  unsigned int d_word_num;
51  int d_frames_seen;
52 
53  // Minor frame number
54  int d_current_mfnum;
55  int d_expected_mfnum;
56  int d_seq_errs;
57 
58  // Spacecraft address
59  int d_address;
60 
61  // Minor frame timestamp
62  int d_day_of_year;
63  int d_milliseconds;
64  int d_last_time;
65 
66  void process_mfnum();
67  void process_address();
68  void process_day_of_year();
69  void process_milli1();
70  void process_milli2();
71  void process_milli3();
72 
73 public:
74  ~noaa_hrpt_decoder();
75 
76  int work(int noutput_items,
77  gr_vector_const_void_star &input_items,
78  gr_vector_void_star &output_items);
79 };
80 
81 #endif /* INCLUDED_NOAA_HRPT_DECODER_H */