gr-noaa: Switched to 'double rate BPSK' HRPT synchronization
[debian/gnuradio] / gr-noaa / lib / noaa_hrpt_bit_sync.h
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_BIT_SYNC_H
24 #define INCLUDED_NOAA_HRPT_BIT_SYNC_H
25
26 #include <gr_block.h>
27
28 class noaa_hrpt_bit_sync;
29 typedef boost::shared_ptr<noaa_hrpt_bit_sync> noaa_hrpt_bit_sync_sptr;
30
31 noaa_hrpt_bit_sync_sptr
32 noaa_make_hrpt_bit_sync();
33
34 class noaa_hrpt_bit_sync : public gr_block
35 {
36   friend noaa_hrpt_bit_sync_sptr noaa_make_hrpt_bit_sync();
37   noaa_hrpt_bit_sync();
38
39   bool          d_mid_bit;
40   unsigned char d_last_bit;
41
42  public:
43   int general_work(int noutput_items,
44                    gr_vector_int &ninput_items,
45                    gr_vector_const_void_star &input_items,
46                    gr_vector_void_star &output_items);
47 };
48
49 #endif /* INCLUDED_NOAA_HRPT_BIT_SYNC_H */