3 * Copyright 2009 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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)
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.
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.
23 #ifndef INCLUDED_NOAA_HRPT_DEFRAMER_H
24 #define INCLUDED_NOAA_HRPT_DEFRAMER_H
26 #define HRPT_SYNC_WORDS 6
27 #define HRPT_MINOR_FRAME_WORDS 11090
28 #define HRPT_BITS_PER_WORD 10
32 class noaa_hrpt_deframer;
33 typedef boost::shared_ptr<noaa_hrpt_deframer> noaa_hrpt_deframer_sptr;
35 noaa_hrpt_deframer_sptr
36 noaa_make_hrpt_deframer();
38 class noaa_hrpt_deframer : public gr_block
40 friend noaa_hrpt_deframer_sptr noaa_make_hrpt_deframer();
45 unsigned char d_last_bit;
46 unsigned int d_bit_count;
47 unsigned int d_word_count;
48 unsigned long long d_shifter; // 60 bit sync word
49 unsigned short d_word; // 10 bit HRPT word
55 int general_work(int noutput_items,
56 gr_vector_int &ninput_items,
57 gr_vector_const_void_star &input_items,
58 gr_vector_void_star &output_items);
61 #endif /* INCLUDED_NOAA_HRPT_DEFRAMER_H */