1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/* -*- c++ -*- */
/*
* Copyright 2004,2010 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
//
// This is a (partial) rewrite of the GNU radio code, for use
// within the DAB/DAB+ sdr-j receiver software
// all rights are acknowledged.
//
#ifndef FIRECODE_CHECKER
#define FIRECODE_CHECKER
#include <stdint.h>
class firecode_checker {
public:
firecode_checker(void);
~firecode_checker(void);
// error detection. x[0-1] contains parity, x[2-10] contains data
bool check(const uint8_t *x); // return true if firecode check is passed
private:
uint16_t tab[256];
uint16_t run8(unsigned char regs[]);
static const uint8_t g[16];
};
#endif
|
