189 lines
6.7 KiB
C++
189 lines
6.7 KiB
C++
#ifndef VARICODE_H
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#define VARICODE_H
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/**
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* (C) 2018 Jordan Sherer <kn4crd@gmail.com> - All Rights Reserved
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**/
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#include <QBitArray>
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#include <QRegularExpression>
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#include <QRegExp>
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#include <QString>
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#include <QVector>
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#include <QThread>
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class Varicode
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{
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public:
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// frame type transmitted via itype and decoded by the ft8 decoded
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enum TransmissionType {
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JS8Call = 0, // [000] <- any other frame of the message
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JS8CallFirst = 1, // [001] <- the first frame of a message
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JS8CallLast = 2, // [010] <- the last frame of a message
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JS8CallFlag = 4, // [100] <- flagged frame (no frame type header)
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};
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/*
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000 = heartbeat
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001 = compound
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010 = compound directed
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011 = directed
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1XX = data, with the X lsb bits dropped
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*/
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enum FrameType {
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FrameUnknown = 255, // [11111111] <- only used as a sentinel
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FrameHeartbeat = 0, // [000]
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FrameCompound = 1, // [001]
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FrameCompoundDirected = 2, // [010]
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FrameDirected = 3, // [011]
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FrameData = 4, // [10X] // but this only encodes the first 2 msb bits and drops the lsb
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FrameDataCompressed = 6, // [11X] // but this only encodes the first 2 msb bits and drops the lsb
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};
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static const quint8 FrameTypeMax = 6;
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static QString frameTypeString(quint8 type) {
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const char* FrameTypeStrings[] = {
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"FrameHeartbeat",
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"FrameCompound",
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"FrameCompoundDirected",
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"FrameDirected",
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"FrameData",
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"FrameUnknown", // 5
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"FrameDataCompressed",
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};
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if(type > FrameTypeMax){
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return "FrameUnknown";
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}
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return FrameTypeStrings[type];
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}
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//Varicode();
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static QString rstrip(const QString& str);
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static QString lstrip(const QString& str);
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static QMap<QString, QString> defaultHuffTable();
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static QString cqString(int number);
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static QString hbString(int number);
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static bool startsWithCQ(QString text);
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static bool startsWithHB(QString text);
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static QString formatSNR(int snr);
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static QString formatPWR(int dbm);
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static QString checksum16(QString const &input);
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static bool checksum16Valid(QString const &checksum, QString const &input);
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static QString checksum32(QString const &input);
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static bool checksum32Valid(QString const &checksum, QString const &input);
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static QStringList parseCallsigns(QString const &input);
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static QStringList parseGrids(QString const &input);
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static QList<QPair<int, QVector<bool>>> huffEncode(const QMap<QString, QString> &huff, QString const& text);
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static QString huffDecode(const QMap<QString, QString> &huff, QVector<bool> const& bitvec);
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static QSet<QString> huffValidChars(const QMap<QString, QString> &huff);
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static QVector<bool> bytesToBits(char * bitvec, int n);
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static QVector<bool> strToBits(QString const& bitvec);
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static QString bitsToStr(QVector<bool> const& bitvec);
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static QVector<bool> intToBits(quint64 value, int expected=0);
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static quint64 bitsToInt(QVector<bool> const value);
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static quint64 bitsToInt(QVector<bool>::ConstIterator start, int n);
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static QVector<bool> bitsListToBits(QList<QVector<bool>> &list);
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static quint8 unpack5bits(QString const& value);
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static QString pack5bits(quint8 packed);
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static quint8 unpack6bits(QString const& value);
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static QString pack6bits(quint8 packed);
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static quint16 unpack16bits(QString const& value);
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static QString pack16bits(quint16 packed);
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static quint32 unpack32bits(QString const& value);
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static QString pack32bits(quint32 packed);
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static quint64 unpack64bits(QString const& value);
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static QString pack64bits(quint64 packed);
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static quint64 unpack72bits(QString const& value, quint8 *pRem);
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static QString pack72bits(quint64 value, quint8 rem);
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static quint32 packAlphaNumeric22(QString const& value, bool isFlag);
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static QString unpackAlphaNumeric22(quint32 packed, bool *isFlag);
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static quint64 packAlphaNumeric50(QString const& value);
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static QString unpackAlphaNumeric50(quint64 packed);
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static quint32 packCallsign(QString const& value);
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static QString unpackCallsign(quint32 value);
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static QString deg2grid(float dlong, float dlat);
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static QPair<float, float> grid2deg(QString const &grid);
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static quint16 packGrid(QString const& value);
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static QString unpackGrid(quint16 value);
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static quint8 packNum(QString const &num, bool *ok);
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static quint8 packPwr(QString const &pwr, bool *ok);
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static quint8 packCmd(quint8 cmd, quint8 num, bool *pPackedNum);
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static quint8 unpackCmd(quint8 value, quint8 *pNum);
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static bool isSNRCommand(const QString &cmd);
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static bool isCommandAllowed(const QString &cmd);
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static bool isCommandBuffered(const QString &cmd);
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static int isCommandChecksumed(const QString &cmd);
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static bool isCommandAutoreply(const QString &cmd);
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static bool isValidCallsign(const QString &callsign, bool *pIsCompound);
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static bool isCompoundCallsign(const QString &callsign);
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static QString packHeartbeatMessage(QString const &text, QString const&callsign, int *n);
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static QStringList unpackHeartbeatMessage(const QString &text, quint8 *pType, bool *isAlt, quint8 *pBits3);
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static QString packCompoundMessage(QString const &text, int *n);
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static QStringList unpackCompoundMessage(const QString &text, quint8 *pType, quint8 *pBits3);
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static QString packCompoundFrame(const QString &callsign, quint8 type, quint16 num, quint8 bits3);
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static QStringList unpackCompoundFrame(const QString &text, quint8 *pType, quint16 *pNum, quint8 *pBits3);
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static QString packDirectedMessage(QString const& text, QString const& mycall, QString *pTo, bool *pToCompound, QString * pCmd, QString *pNum, int *n);
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static QStringList unpackDirectedMessage(QString const& text, quint8 *pType);
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static QString packDataMessage(QString const& text, int *n);
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static QString unpackDataMessage(QString const& text);
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static QList<QPair<QString, int>> buildMessageFrames(
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QString const& mycall,
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QString const& mygrid,
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QString const& selectedCall,
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QString const& text
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);
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};
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class BuildMessageFramesThread : public QThread
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{
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Q_OBJECT
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public:
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BuildMessageFramesThread(QString const& mycall,
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QString const& mygrid,
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QString const& selectedCall,
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QString const& text,
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QObject *parent=nullptr);
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void run() override;
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signals:
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void resultReady(QString, int);
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private:
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QString m_mycall;
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QString m_mygrid;
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QString m_selectedCall;
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QString m_text;
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};
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#endif // VARICODE_H
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