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.
27 #include <noaa_hrpt_bit_sync.h>
28 #include <gr_io_signature.h>
31 noaa_hrpt_bit_sync_sptr
32 noaa_make_hrpt_bit_sync()
34 return gnuradio::get_initial_sptr(new noaa_hrpt_bit_sync());
37 noaa_hrpt_bit_sync::noaa_hrpt_bit_sync()
38 : gr_block("noaa_hrpt_bit_sync",
39 gr_make_io_signature(1, 1, sizeof(char)),
40 gr_make_io_signature(1, 1, sizeof(char))),
47 noaa_hrpt_bit_sync::general_work(int noutput_items,
48 gr_vector_int &ninput_items,
49 gr_vector_const_void_star &input_items,
50 gr_vector_void_star &output_items)
52 int ninputs = ninput_items[0];
53 const char *in = (const char *)input_items[0];
54 char *out = (char *)output_items[0];
57 while (i < ninputs && j < noutput_items) {
59 char diff = bit^d_last_bit;
62 if (d_mid_bit && diff) {