GNU Radio 3.5.3.2 C++ API
noaa_hrpt_decoder.h
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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2009 Free Software Foundation, Inc.
00004  * 
00005  * This file is part of GNU Radio
00006  * 
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 3, or (at your option)
00010  * any later version.
00011  * 
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_NOAA_HRPT_DECODER_H
00024 #define INCLUDED_NOAA_HRPT_DECODER_H
00025 
00026 #include <noaa_api.h>
00027 #include <gr_sync_block.h>
00028 
00029 class noaa_hrpt_decoder;
00030 typedef boost::shared_ptr<noaa_hrpt_decoder> noaa_hrpt_decoder_sptr;
00031 
00032 NOAA_API noaa_hrpt_decoder_sptr
00033 noaa_make_hrpt_decoder(bool verbose, bool output_files);
00034 
00035 class NOAA_API noaa_hrpt_decoder : public gr_sync_block
00036 {
00037   friend NOAA_API noaa_hrpt_decoder_sptr noaa_make_hrpt_decoder(bool verbose, bool output_files);
00038   noaa_hrpt_decoder(bool verbose, bool output_files);
00039 
00040   // Configuration
00041   bool d_verbose;
00042   bool d_output_files;
00043 
00044   // Frame-level state
00045   unsigned short d_current_word;
00046   unsigned int   d_word_num;
00047   int            d_frames_seen;
00048 
00049   // Minor frame number
00050   int d_current_mfnum;
00051   int d_expected_mfnum;
00052   int d_seq_errs;
00053 
00054   // Spacecraft address
00055   int d_address;
00056 
00057   // Minor frame timestamp
00058   int d_day_of_year;
00059   int d_milliseconds;
00060   int d_last_time;
00061 
00062   void process_mfnum();
00063   void process_address();
00064   void process_day_of_year();
00065   void process_milli1();
00066   void process_milli2();
00067   void process_milli3();
00068 
00069 public:
00070   ~noaa_hrpt_decoder();
00071 
00072   int work(int noutput_items,
00073            gr_vector_const_void_star &input_items,
00074            gr_vector_void_star &output_items);
00075 };
00076 
00077 #endif /* INCLUDED_NOAA_HRPT_DECODER_H */