GNU Radio 3.5.3.2 C++ API
noaa_hrpt_deframer.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_DEFRAMER_H
00024 #define INCLUDED_NOAA_HRPT_DEFRAMER_H
00025 
00026 #include <noaa_api.h>
00027 #include <gr_block.h>
00028 
00029 class noaa_hrpt_deframer;
00030 typedef boost::shared_ptr<noaa_hrpt_deframer> noaa_hrpt_deframer_sptr;
00031 
00032 NOAA_API noaa_hrpt_deframer_sptr
00033 noaa_make_hrpt_deframer();
00034 
00035 class NOAA_API noaa_hrpt_deframer : public gr_block
00036 {
00037   friend NOAA_API noaa_hrpt_deframer_sptr noaa_make_hrpt_deframer();
00038   noaa_hrpt_deframer();
00039 
00040   unsigned int       d_state;
00041   bool               d_mid_bit;
00042   unsigned char      d_last_bit;
00043   unsigned int       d_bit_count;
00044   unsigned int       d_word_count;
00045   unsigned long long d_shifter;     // 60 bit sync word
00046   unsigned short     d_word;        // 10 bit HRPT word
00047 
00048   void enter_idle();
00049   void enter_synced();
00050  
00051 public:
00052   int general_work(int noutput_items,
00053                    gr_vector_int &ninput_items,
00054                    gr_vector_const_void_star &input_items,
00055                    gr_vector_void_star &output_items);
00056 };
00057 
00058 #endif /* INCLUDED_NOAA_HRPT_DEFRAMER_H */