GNU Radio Manual and C++ API Reference 3.8.5.0
The Free & Open Software Radio Ecosystem
 
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scrambler_bb.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2008,2012 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_GR_SCRAMBLER_BB_H
24#define INCLUDED_GR_SCRAMBLER_BB_H
25
27#include <gnuradio/sync_block.h>
28
29namespace gr {
30namespace digital {
31
32/*!
33 * \brief Scramble an input stream using an LFSR.
34 * \ingroup coding_blk
35 *
36 * \details
37 * This block works on the LSB only of the input data stream,
38 * i.e., on an "unpacked binary" stream, and produces the same
39 * format on its output.
40 */
41class DIGITAL_API scrambler_bb : virtual public sync_block
42{
43public:
44 // gr::digital::scrambler_bb::sptr
45 typedef boost::shared_ptr<scrambler_bb> sptr;
46
47 /*!
48 * Make a scramber block.
49 *
50 * \param mask Polynomial mask for LFSR
51 * \param seed Initial shift register contents
52 * \param len Shift register length
53 */
54 static sptr make(int mask, int seed, int len);
55};
56
57} /* namespace digital */
58} /* namespace gr */
59
60#endif /* INCLUDED_GR_SCRAMBLER_BB_H */
Scramble an input stream using an LFSR.
Definition scrambler_bb.h:42
static sptr make(int mask, int seed, int len)
boost::shared_ptr< scrambler_bb > sptr
Definition scrambler_bb.h:45
synchronous 1:1 input to output with history
Definition sync_block.h:38
#define DIGITAL_API
Definition gr-digital/include/gnuradio/digital/api.h:30
GNU Radio logging wrapper for log4cpp library (C++ port of log4j)
Definition basic_block.h:46