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Changed frame packing so we can use one of the ibits as a turbo flag

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This commit is contained in:
Jordan Sherer 2018-11-08 16:53:42 -05:00
parent 73346240e5
commit 5ba31d6df7
4 changed files with 73 additions and 56 deletions
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9
decodedtext.cpp
View File

@ -221,19 +221,14 @@ bool DecodedText::tryUnpackData(){
return false;
}
if((bits_ & Varicode::JS8CallData) != Varicode::JS8CallData){
return false;
}
quint8 type = Varicode::FrameUnknown;
QString data = Varicode::unpackDataMessage(m, &type);
QString data = Varicode::unpackDataMessage(m);
if(data.isEmpty()){
return false;
}
message_ = data;
frameType_ = type;
frameType_ = Varicode::FrameData;
return true;
}

14
mainwindow.cpp
View File

@ -3887,8 +3887,8 @@ void MainWindow::readFromStdout() //readFromStdout
if(!m_bandActivity.contains(offset)){
QList<int> offsets = {
offset - 60, offset - 61, offset - 62, offset - 63, offset - 64, offset - 65, offset - 66, offset - 67, offset - 68, offset - 69,
offset + 60, offset + 61, offset + 62, offset + 63, offset + 64, offset + 65, offset + 66, offset + 67, offset + 68, offset + 69,
// offset - 60, offset - 61, offset - 62, offset - 63, offset - 64, offset - 65, offset - 66, offset - 67, offset - 68, offset - 69,
// offset + 60, offset + 61, offset + 62, offset + 63, offset + 64, offset + 65, offset + 66, offset + 67, offset + 68, offset + 69,
offset - 1, offset - 2, offset - 3, offset - 4, offset - 5, offset - 6, offset - 7, offset - 8, offset - 9, offset - 10,
offset + 1, offset + 2, offset + 3, offset + 4, offset + 5, offset + 6, offset + 7, offset + 8, offset + 9, offset + 10
};
@ -4200,8 +4200,8 @@ bool MainWindow::hasExistingMessageBuffer(int offset, bool drift, int *pPrevOffs
}
QList<int> offsets = {
offset - 60, offset - 61, offset - 62, offset - 63, offset - 64, offset - 65, offset - 66, offset - 67, offset - 68, offset - 69,
offset + 60, offset + 61, offset + 62, offset + 63, offset + 64, offset + 65, offset + 66, offset + 67, offset + 68, offset + 69,
//offset - 60, offset - 61, offset - 62, offset - 63, offset - 64, offset - 65, offset - 66, offset - 67, offset - 68, offset - 69,
//offset + 60, offset + 61, offset + 62, offset + 63, offset + 64, offset + 65, offset + 66, offset + 67, offset + 68, offset + 69,
offset - 1, offset - 2, offset - 3, offset - 4, offset - 5, offset - 6, offset - 7, offset - 8, offset - 9, offset - 10,
offset + 1, offset + 2, offset + 3, offset + 4, offset + 5, offset + 6, offset + 7, offset + 8, offset + 9, offset + 10
};
@ -4517,12 +4517,12 @@ void MainWindow::guiUpdate()
foxcom_.nfreq=ui->TxFreqSpinBox->value();
if(m_config.split_mode()) foxcom_.nfreq = foxcom_.nfreq - m_XIT; //Fox Tx freq
strncpy(&foxcom_.cmsg[0][0], QString::fromStdString(message).toLatin1(), 12);
foxcom_.i3bit[0] = m_i3bit;
foxcom_.i3bit[0] = m_i3bit | Varicode::JS8CallExtended;
int i = 1;
while(!m_txFrameQueue.isEmpty() && foxcom_.nslots < TEST_FOX_WAVE_GEN_SLOTS){
auto pair = m_txFrameQueue.dequeue();
strncpy(&foxcom_.cmsg[i][0], pair.first.toLatin1(), 12);
foxcom_.i3bit[i] = pair.second;
foxcom_.i3bit[i] = pair.second | Varicode::JS8CallExtended;
foxcom_.nslots += 1;
//m_currentMessage.append(pair.first);
@ -9022,7 +9022,7 @@ void MainWindow::processCompoundActivity() {
bits == Varicode::JS8Call ||
((bits & Varicode::JS8CallFirst) == Varicode::JS8CallFirst) ||
((bits & Varicode::JS8CallLast) == Varicode::JS8CallLast) ||
((bits & Varicode::JS8CallData) == Varicode::JS8CallData)
((bits & Varicode::JS8CallExtended) == Varicode::JS8CallExtended)
);
if (!validBits) {
qDebug() << "-> buffer.cmd bits is invalid...skip";

81
varicode.cpp
View File

@ -1183,7 +1183,9 @@ QString Varicode::packHeartbeatMessage(QString const &text, const QString &calls
cqNumber = cqs.key(type, 0);
}
frame = packCompoundFrame(callsign, FrameHeartbeat, packed_extra, cqNumber);
quint8 cqNumber = cqs.key(type, 0);
frame = packCompoundFrame(callsign, Varicode::FrameHeartbeat, packed_extra, cqNumber);
if(frame.isEmpty()){
if(n) *n = 0;
return frame;
@ -1194,12 +1196,12 @@ QString Varicode::packHeartbeatMessage(QString const &text, const QString &calls
}
QStringList Varicode::unpackHeartbeatMessage(const QString &text, quint8 *pType, bool * isAlt, quint8 * pBits3){
quint8 type = FrameHeartbeat;
quint8 type = Varicode::FrameHeartbeat;
quint16 num = nmaxgrid;
quint8 bits3 = 0;
QStringList unpacked = unpackCompoundFrame(text, &type, &num, &bits3);
if(unpacked.isEmpty() || type != FrameHeartbeat){
if(unpacked.isEmpty() || type != Varicode::FrameHeartbeat){
return QStringList{};
}
@ -1239,7 +1241,7 @@ QString Varicode::packCompoundMessage(QString const &text, int *n){
return frame;
}
quint8 type = FrameCompound;
quint8 type = Varicode::FrameCompound;
quint16 extra = nmaxgrid;
qDebug() << "try pack cmd" << cmd << directed_cmds.contains(cmd) << Varicode::isCommandAllowed(cmd);
@ -1249,7 +1251,7 @@ QString Varicode::packCompoundMessage(QString const &text, int *n){
qint8 inum = Varicode::packNum(num, nullptr);
extra = nusergrid + Varicode::packCmd(directed_cmds[cmd], inum, &packedNum);
type = FrameCompoundDirected;
type = Varicode::FrameCompoundDirected;
} else if(!grid.isEmpty()){
extra = Varicode::packGrid(grid);
}
@ -1261,12 +1263,12 @@ QString Varicode::packCompoundMessage(QString const &text, int *n){
}
QStringList Varicode::unpackCompoundMessage(const QString &text, quint8 *pType, quint8 *pBits3){
quint8 type = FrameCompound;
quint8 type = Varicode::FrameCompound;
quint16 extra = nmaxgrid;
quint8 bits3 = 0;
QStringList unpacked = unpackCompoundFrame(text, &type, &extra, &bits3);
if(unpacked.isEmpty() || (type != FrameCompound && type != FrameCompoundDirected)){
if(unpacked.isEmpty() || (type != Varicode::FrameCompound && type != Varicode::FrameCompoundDirected)){
return QStringList {};
}
@ -1294,7 +1296,7 @@ QString Varicode::packCompoundFrame(const QString &callsign, quint8 type, quint1
QString frame;
// needs to be a compound type...
if(type == FrameDataCompressed || type == FrameDataUncompressed || type == FrameDirected){
if(type == Varicode::FrameData || type == Varicode::FrameDirected){
return frame;
}
@ -1338,7 +1340,7 @@ QStringList Varicode::unpackCompoundFrame(const QString &text, quint8 *pType, qu
quint8 packed_flag = Varicode::bitsToInt(bits.mid(0, 3));
// needs to be a ping type...
if(packed_flag == FrameDataCompressed || packed_flag == FrameDataUncompressed || packed_flag == FrameDirected){
if(packed_flag == Varicode::FrameData || packed_flag == Varicode::FrameDirected){
return unpacked;
}
@ -1439,7 +1441,7 @@ QString Varicode::packDirectedMessage(const QString &text, const QString &mycall
cmdOut = cmd.trimmed();
packed_cmd = directed_cmds[cmdOut];
}
quint8 packed_flag = FrameDirected;
quint8 packed_flag = Varicode::FrameDirected;
quint8 packed_extra = inum;
// [3][28][28][5],[2][6] = 72
@ -1467,7 +1469,7 @@ QStringList Varicode::unpackDirectedMessage(const QString &text, quint8 *pType){
auto bits = Varicode::intToBits(Varicode::unpack72bits(text, &extra), 64);
quint8 packed_flag = Varicode::bitsToInt(bits.mid(0, 3));
if(packed_flag != FrameDirected){
if(packed_flag != Varicode::FrameDirected){
return unpacked;
}
@ -1500,8 +1502,12 @@ QString packHuffMessage(const QString &input, int *n){
QString frame;
// [1][71] = 72
QVector<bool> frameBits = {false};
// [1][1][70] = 72
// The first bit is a flag that indicates this is a data frame, technically encoded as [100]
// but, since none of the other frame types start with a 1, we can drop the two zeros and use
// them for encoding the first two bits of the actuall data sent. boom!
// The second bit is a flag that indicates this is not compressed frame (huffman coding)
QVector<bool> frameBits = {true, false};
int i = 0;
@ -1554,8 +1560,12 @@ QString packCompressedMessage(const QString &input, int *n){
QString frame;
// [1][71] = 72
QVector<bool> frameBits = {true};
// [1][1][70] = 72
// The first bit is a flag that indicates this is a data frame, technically encoded as [100]
// but, since none of the other frame types start with a 1, we can drop the two zeros and use
// them for encoding the first two bits of the actuall data sent. boom!
// The second bit is a flag that indicates this is a compressed frame (dense coding)
QVector<bool> frameBits = {true, true};
int i = 0;
foreach(auto pair, JSC::compress(input)){
@ -1593,24 +1603,25 @@ QString packCompressedMessage(const QString &input, int *n){
}
QString Varicode::packDataMessage(const QString &input, int *n){
QString huffFrame;
int huffChars = 0;
huffFrame = packHuffMessage(input, &huffChars);
QString huffFrame;
int huffChars = 0;
huffFrame = packHuffMessage(input, &huffChars);
QString compressedFrame;
int compressedChars = 0;
compressedFrame = packCompressedMessage(input, &compressedChars);
QString compressedFrame;
int compressedChars = 0;
compressedFrame = packCompressedMessage(input, &compressedChars);
if(huffChars > compressedChars){
if(n) *n = huffChars;
return huffFrame;
} else {
if(n) *n = compressedChars;
return compressedFrame;
}
if(huffChars > compressedChars){
if(n) *n = huffChars;
return huffFrame;
} else {
if(n) *n = compressedChars;
return compressedFrame;
}
}
QString Varicode::unpackDataMessage(const QString &text, quint8 *pType){
QString Varicode::unpackDataMessage(const QString &text){
QString unpacked;
if(text.length() < 12 || text.contains(" ")){
@ -1621,18 +1632,24 @@ QString Varicode::unpackDataMessage(const QString &text, quint8 *pType){
quint64 value = Varicode::unpack72bits(text, &rem);
auto bits = Varicode::intToBits(value, 64) + Varicode::intToBits(rem, 8);
bool isData = bits.at(0);
if(!isData){
return unpacked;
}
bits = bits.mid(1);
bool compressed = bits.at(0);
int n = bits.lastIndexOf(0);
bits = bits.mid(1, n-1);
if(compressed){
// partial word (s,c)-dense coding with code tables
unpacked = JSC::decompress(bits);
if(pType) *pType = Varicode::FrameDataCompressed;
} else {
// huff decode the bits (without escapes)
unpacked = Varicode::huffDecode(Varicode::defaultHuffTable(), bits);
if(pType) *pType = Varicode::FrameDataUncompressed;
}
return unpacked;
@ -1852,7 +1869,7 @@ QList<QPair<QString, int>> Varicode::buildMessageFrames(
}
if(useDat){
frames.append({ frame, Varicode::JS8CallData });
frames.append({ frame, Varicode::JS8Call });
line = line.mid(m);
}
}

25
varicode.h
View File

@ -21,22 +21,28 @@ public:
JS8Call = 0, // [000] <- any other frame of the message
JS8CallFirst = 1, // [001] <- the first frame of a message
JS8CallLast = 2, // [010] <- the last frame of a message
JS8CallData = 4, // [100] <- raw data frame (no frame type header)
JS8CallExtended = 4, // [100] <- raw data frame (no frame type header)
};
/*
000 = heartbeat
001 = compound
010 = compound directed
011 = directed
1XX = data, with X bits dropped
*/
enum FrameType {
FrameUnknown = 255, // [11111111] <- only used as a sentinel
FrameHeartbeat = 0, // [000]
FrameCompound = 1, // [001]
FrameCompoundDirected = 2, // [010]
FrameDirected = 3, // [011]
FrameReservedA = 4, // [100] <- Reserved for future use, likely an extension of one of these formats.
FrameDataUncompressed = 5, // [101]
FrameDataCompressed = 6, // [110]
FrameReservedB = 7, // [111] <- Reserved for future use, likely binary data / other formats.
FrameData = 4, // [1XX] // but this only encodes the msb bit 1 and drops the two zeros
FrameDataCompressed = 6, // [11X] // but this only encodes the first 2 msb bits and drops the lsb
};
static const quint8 FrameTypeMax = 7;
static const quint8 FrameTypeMax = 6;
static QString frameTypeString(quint8 type) {
const char* FrameTypeStrings[] = {
@ -44,10 +50,9 @@ public:
"FrameCompound",
"FrameCompoundDirected",
"FrameDirected",
"FrameReservedA",
"FrameDataUncompressed",
"FrameData",
"FrameUnknown", // 5
"FrameDataCompressed",
"FrameReservedB"
};
if(type > FrameTypeMax){
@ -148,7 +153,7 @@ public:
static QStringList unpackDirectedMessage(QString const& text, quint8 *pType);
static QString packDataMessage(QString const& text, int *n);
static QString unpackDataMessage(QString const& text, quint8 *pType);
static QString unpackDataMessage(QString const& text);
static QList<QPair<QString, int>> buildMessageFrames(
QString const& mycall,