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sdrangel/sdrbase/util/baudot.h
2023-09-01 17:10:26 +01:00

110 lines
3.5 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2023 Jon Beniston, M7RCE //
// //
// This program 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 as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_UTIL_BAUDOT_H
#define INCLUDE_UTIL_BAUDOT_H
#include <QString>
#include <QDateTime>
#include <QMap>
#include "export.h"
class SDRBASE_API Baudot {
public:
enum CharacterSet {
ITA2,
UK,
EUROPEAN,
US,
RUSSIAN, // MTK-2
MURRAY
};
// QString used for fractions in figure set
static const QStringList m_ita2Letter;
static const QStringList m_ita2Figure;
static const QStringList m_ukLetter;
static const QStringList m_ukFigure;
static const QStringList m_europeanLetter;
static const QStringList m_europeanFigure;
static const QStringList m_usLetter;
static const QStringList m_usFigure;
static const QStringList m_russianLetter;
static const QStringList m_russianFigure;
static const QStringList m_murrayLetter;
static const QStringList m_murrayFigure;
};
class SDRBASE_API BaudotDecoder {
public:
BaudotDecoder();
void setCharacterSet(Baudot::CharacterSet characterSet = Baudot::ITA2);
void setUnshiftOnSpace(bool unshiftOnSpace);
void init();
QString decode(char bits);
private:
Baudot::CharacterSet m_characterSet;
bool m_unshiftOnSpace;
QStringList m_letters;
QStringList m_figures;
bool m_figure;
};
class SDRBASE_API BaudotEncoder {
public:
BaudotEncoder();
void setCharacterSet(Baudot::CharacterSet characterSet = Baudot::ITA2);
void setUnshiftOnSpace(bool unshiftOnSpace);
void setMsbFirst(bool msbFirst);
void setStartBits(int startBits);
void setStopBits(int stopBits);
void init();
bool encode(QChar c, unsigned& bits, unsigned int &bitCount);
private:
void addStartBits(unsigned int& bits, unsigned int& bitCount) const;
void addStopBits(unsigned int& bits, unsigned int& bitCount) const;
void addBits(unsigned int& bits, unsigned int& bitCount, int data, int count) const;
unsigned reverseBits(unsigned int bits, unsigned int count) const;
static unsigned reverse(unsigned int bits);
Baudot::CharacterSet m_characterSet;
bool m_unshiftOnSpace;
QStringList m_letters;
QStringList m_figures;
bool m_figure;
bool m_msbFirst;
int m_startBits;
int m_stopBits;
};
#endif // INCLUDE_UTIL_BAUDOT_H