PCIE之sth_util.cpp

#include "sth_util.h"#include <qtcore>#include <qtgui>#include <QFile>#include <QString>#define  _TIME_ qPrintable (QTime::currentTime().toString( "hh:mm:ss:zzz"))int KTable[256];   //KTable 表示从后往前第一次出现处的游标//{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};    //默认初始化为0int shiftTable[256];void BuildTable( const unsigned char* head, int length ){static bool k = true;   //保证此函数之执行一次if(k){for ( int i = 0; i < 256; i ++ )    //总体初始化为-1KTable[i] = -1;for ( int i = 0; i < length; i ++ )    //保存帧头字节的游标KTable[ head[i] ] = i;k = false;}}bool Str_To_Int(const QString& str , int& num){bool ok = false;int val = str.toInt(&ok );if(ok) num = val;return ok;}typedef unsigned char UCHAR;void five2eight(void* pI,void* pO,unsigned int size){UCHAR* pS =(UCHAR*)pI;UCHAR* pD =(UCHAR*)pO;for (int i=0,j=0;i<size;i+=5,j+=8){pD[j]   = pS[i]>>6;pD[j+1] = (pS[i] <<2) + (pS[i+1]>>6);pD[j+2] = ((pS[i+1] & 0x30) >>4); //+ (pS[i+2]>>4);pD[j+3] = (pS[i+1]<<4) + (pS[i+2] >>4);pD[j+4] = ( (pS[i+2] & 0x0c)>>2) ;//pS[i+3];pD[j+5] = (pS[i+2]<<6) + (pS[i+3]>>2);pD[j+6] = pS[i+3]& 0x03;pD[j+7] = pS[i+4];}//颠倒字节顺序unsigned char temp;for (unsigned int i = 0; i<size/5*8; i +=2){temp = pD[i+1];pD[i+1] = pD[i];pD[i] = temp;}}void three2four(void* pI,void* pO,unsigned int size){UCHAR* pS =(UCHAR*)pI;UCHAR* pD =(UCHAR*)pO;for (int i=0,j=0;i<size;i+=3,j+=4){pD[j] = pS[i] >> 4;pD[j+1] = pS[i] << 4 + pS[i+1] >> 4;pD[j+2] = pS[i+1] & 0x0F;pD[j+3] = pS[i+2];}//颠倒字节顺序unsigned char temp;for (unsigned int i = 0; i<size/3*4; i +=2){temp = pD[i+1];pD[i+1] = pD[i];pD[i] = temp;}}void ScanCameToRaw( QString &inFileName ,  QString &outFileName ){int i,j;QFile scanCamFile,scanRawFile;int block = 4070;unsigned char *buff1 = new unsigned char[block];memset( buff1, 0, block );unsigned char *buff11 = new unsigned char[block/5*8];memset( buff11, 0, block/5*8 );int pos = 0;scanCamFile.setFileName( inFileName );scanCamFile.open( QIODevice::ReadOnly );scanRawFile.setFileName( outFileName );scanRawFile.open(QIODevice::WriteOnly );pos += 400;for ( j = 0; j < 11635; ++j ){pos += 40;scanCamFile.seek(pos);scanCamFile.read( (char*)buff1, block );five2eight( buff1, buff11, block);scanRawFile.write( (char*)buff11, block/5*8 );pos += (block + 10);}delete []buff1;delete []buff11;}void GazeCamToRaw( QString &inFileName, QString &outFileName ){QFile gazeCamFile, gazeRawFile;int block =512 *2 /8*5;unsigned char *buff1 = new unsigned char[block];memset( buff1, 0, block );unsigned char *buff11 = new unsigned char[block/5*8];memset( buff11, 0, block/5*8 );int i,j;int pos = 0;gazeCamFile.setFileName( inFileName );gazeCamFile.open( QIODevice::ReadOnly );gazeRawFile.setFileName( outFileName );gazeRawFile.open(QIODevice::WriteOnly );pos += 80;gazeCamFile.seek(pos);for ( j = 0; j < 512; ++j ){gazeCamFile.read( (char*)buff1, block );five2eight( buff1, buff11, block);gazeRawFile.write( (char*)buff11, block/5*8 );}delete []buff1;delete []buff11;}int SearchHead2R(unsigned char* pData,int size,const unsigned char* fileHead,int headLength){int i = 0;//初始化游标int j = 0;int m = i + headLength;//int k = headLength -1;//计时LARGE_INTEGER tempTime;double fre;__int64 startTime,stoptime,totalTime;   //开始结束时间QueryPerformanceFrequency(&tempTime);fre = tempTime.QuadPart;QueryPerformanceCounter(&tempTime);startTime = tempTime.QuadPart;while( i < size && j < headLength ){if( pData[i] == fileHead[j] )   //开始逐个比较{++i;++j;}else{//以下是新的匹配错误时查找正确匹配时的位置// while( k >= 0 && pData[m] != fileHead[k] )// --k;//用查找表做//k = KTable[ pData[m] ] - 1;   //KTable中的是以1开头的位置，而k代表的是以0开始的游标j = 0;i = m - KTable[ pData[m] ];m = i + headLength;}}QueryPerformanceCounter(&tempTime);stoptime = tempTime.QuadPart;totalTime = (stoptime - startTime) * 1000000 / fre;//qDebug() << QString("searchHead2R coast time : %1").arg(totalTime);if( i < size )return i - headLength;return -1;}bool SaveTextToFile(const QString& fileName , const QString& textContent){if(fileName.isEmpty()){MsgBox( QObject::tr("文件名为空!") ); return false;}if(textContent.isEmpty()){MsgBox(QObject::tr("内容为空!")); return false;}QFile file(fileName);if( !file.open(QFile::WriteOnly | QIODevice::Text ) ){QMessageBox::about(0,"Tips" , "save failured!!!");return false;}QTextStream ots(&file);ots << textContent;return true;}QString GetTextFromFile(const QString& filePath){QFile file(filePath);file.open(QFile::ReadOnly| QIODevice::Text );return file.readAll();}////void QStringtoCharBuf(const QString& src , char* buf)//{////static QTextCodec *coder = QTextCodec::codecForName("gb18030");////strcpy(buf, (const char*) coder->fromUnicode(src).data() );////strcpy(buf, QFile::encodeName(src).constData() );//}bool SaveBinDataToFile(const QString& fileName , void* data , int dataLen){if(fileName.isEmpty()){MsgBox( QObject::tr("文件名为空!") ); return false;}if( data == 0 || dataLen == 0){MsgBox(QObject::tr("内容为空!")); return false;}QFile file(fileName);if( !file.open(QFile::WriteOnly) ){QMessageBox::about(0,"Tips" , "save failured!!!");return false;}QDataStream ots(&file);ots.writeRawData( (const char*)data , dataLen);return true;}bool SaveBoardParameterToFile(QFile* file, void* data, int dataLen){if( data == 0 || dataLen == 0){MsgBox(QObject::tr("内容为空!")); return false;}QDataStream ots(file);ots.writeRawData( (const char*)data , dataLen);return true;}QByteArray GetBinDataFromFile(const QString& fileName){QFile file(fileName);if( file.open(QFile::ReadOnly) )return file.readAll();else return QByteArray();}void qstring_to_charbuf(const QString& src , char* buf){//static QTextCodec *coder = QTextCodec::codecForName("gb18030");//strcpy(buf, (const char*) coder->fromUnicode(src).data() );strcpy(buf, QFile::encodeName(src).constData() );}QString GetFileNameFromDialog(const QString& strFilter /*= ""*/){static QString dirName;QString str = QFileDialog::getOpenFileName( 0 , QObject::tr("get file name") , dirName , strFilter);if(!str.isEmpty()) dirName = str;return str;}#include <qfileinfo>QStringList GetFileListFromDialog(){QStringList retList;//QString ret;QFileDialog* fileDialog = new QFileDialog;fileDialog->setFileMode(QFileDialog::ExistingFiles);if(fileDialog->exec() == QFileDialog::Accepted)retList = fileDialog->selectedFiles();//ret = retList[0];return retList;}QStringList GetFileNamesFromDialog(const QString& strFilter /*= ""*/){static QString dirName ;QStringList str = QFileDialog::getOpenFileNames( 0 , QObject::tr("get file names") ,  dirName , strFilter );if(str.size() > 0 ) {dirName = QFileInfo(str[0]).absolutePath();//MsgBox(dirName);}return str;}QString GetDirectoryFromDialog(){static QString dirName;QString str = QFileDialog::getExistingDirectory( 0 , QObject::tr("get directory name") , dirName );if(!str.isEmpty()) dirName = str;return str;}QString GetSaveNameFromDialog(const QString& nameFilter /*= ""*/){static QString dirName;QString str = QFileDialog::getSaveFileName( 0 , QObject::tr("get save name") , dirName ,nameFilter );if(!str.isEmpty()) dirName = str;return str;}//验证路径是否合法bool PathIsValid(QString path){if(path.isEmpty() || path == "点击设置"||path == "选择网络分发日志存储目录")return false;return true;}//验证是否压缩码流bool IsCompressData(QString dataType){if (dataType == "Scan-Medium-CompressData" || dataType == "Scan-Short-CompressData" || dataType == "Gaze-CompressData")return true;return false;}//验证是否直传数据bool IsZCData(QString dataType){if (dataType == "Scan-Medium-ImageLeft" || dataType == "Scan-Medium-ImageRight" || dataType == "Scan-Short-ImageLeft" || dataType == "Scan-Short-ImageRight" || dataType == "Gaze-ImageLeft" || dataType == "Gaze-ImageRight"){return true;}elsereturn false;}//验证是否直通数据bool IsThroughData(QString dataType){if ("Scan-Medium-ThroughData" == dataType || "Scan-Short-ThroughData" == dataType || "Gaze-ThroughData" == dataType){return true;}elsereturn false;}void MsgBox(const QString& str){QMessageBox::about (0 , QObject::tr("Tips") , str );}class MainWidgetMoveHelper : public QObject{private:bool eventFilter(QObject *obj, QEvent *event){switch(event->type()){case QEvent::MouseButtonPress :{QMouseEvent *ev = static_cast<QMouseEvent*>(event);if (ev->button() == Qt::LeftButton){QWidget* widget = qobject_cast<QWidget*>(obj);m_dragPos = ev->globalPos() - widget->frameGeometry().topLeft();//event->accept();}}case QEvent::MouseMove :{QMouseEvent *ev = static_cast<QMouseEvent*>(event);if (ev->buttons() & Qt::LeftButton){QWidget* widget = qobject_cast<QWidget*>(obj);//if ( (m_dragPos.y() < 50 && m_dragPos.x() < widget->size().width())///*||(m_dragPos.y() > 50 && m_dragPos.x() < widget->size().width()-200)*/ )if ( m_dragPos.y() < 50 || (m_dragPos.y() > widget->size().height()-100) ){QWidget* widget = qobject_cast<QWidget*>(obj);widget->move(ev->globalPos() - m_dragPos);}}}default:return QObject::eventFilter(obj ,event);}}QPoint  m_dragPos;};//帮助定义窗口移动void InstallMainWidgetMoveHelper(QWidget* w){w->installEventFilter(new MainWidgetMoveHelper);}//从QString获取数字bool GetNumberFromQString(const QString& str , int& num , int base /*= 10*/){bool ok;int res = str.toInt(&ok,base);if(ok){num = res;}return ok;}#include <sstream>#include <iomanip>#include <bitset>std::string DataHex2string(void* data , int ByteLength , int showOffset /*= 10*/){using namespace std;std::stringstream ss;unsigned char* pData = (unsigned char*) data;for(int i = 0 ; i< ByteLength ; ++i){//if( (i+1)%showOffset == 0  )//{//ss << setw(3) << i<< ":";//}ss << setw(2) <<  setfill('0') << hex << (int)pData[i] << " " <<( (i+1)%showOffset == 0 ?"\n" : "")  ;}return ss.str();}std::string int2string(int data){using namespace std;std::stringstream ss;ss << data ;return ss.str();}#include <utility>#include <algorithm>void  swap_short(unsigned short &data) //交换高字节、低字节顺序{std::swap( *(unsigned char*)&data , *( (unsigned char*)&data+1) );}void  swap_short(short &data) //交换高字节、低字节顺序{std::swap( *(unsigned char*)&data , *( (unsigned char*)&data+1) );}void swap_int( int& intVar ){char* pVar = (char*)&intVar;std::reverse( pVar , pVar+4 );}void swap_int(unsigned int& intVar ){char* pVar = (char*)&intVar;std::reverse( pVar , pVar+4 );}// void swap_short(unsigned short& shortVar)// {// char* pVar = (char*)&shortVar;// std::reverse(pVar,pVar+1);// }void swap_int_low2(unsigned int& intVar)//仅仅交换最后两个字节顺序{char* pVar = (char*)&intVar;std::swap( pVar[0] , pVar[1] );}#include <QImage>void GetImageFromData(QImage& img ,unsigned char* data , int width , int height)//获取图片{static bool isInitialied = false ;QVector<QRgb> colorTable ;//初始化一个 调色板，保证只初始化一次if(isInitialied == false){colorTable.reserve(256); for(int i = 0 ; i< 256 ; ++i ){colorTable.push_back(qRgb (i,i,i));}isInitialied = true;}QImage image(data ,width , height ,QImage::Format_Indexed8);image.setColorTable (colorTable);img = image.convertToFormat(QImage::Format_RGB32,Qt::AutoColor);// int b= 0,g= 0,r=0;// QImage image(width , height ,QImage::Format_RGB32);// for ( int i = 0;i< height; i++)// {// for ( int j = 0;j< width; j++)// {// b = (int) *(data + i*width + j);// g = b;// r = g;// image.setPixel(j,i,qRgb(r,g,b));// // }// }// img = image.copy(0,0,width,height); }//获取输入压缩数据类型QString GetInputCompressDataType(){QString res;QStringList items;/*items << QObject::tr("Scan-Medium-CompressData") << QObject::tr("Scan-Short-CompressData") << QObject::tr("Gaze-CompressData")<<QObject::tr("Scan-Medium-ImageLeft") << QObject::tr("Scan-Medium-ImageRight") << QObject::tr("Scan-Short-ImageLeft") << QObject::tr("Scan-Short-ImageRight")<< QObject::tr("Gaze-ImageLeft") << QObject::tr("Gaze-ImageRight");*/items << QObject::tr("压缩中波扫描数据") << QObject::tr("压缩短波扫描数据") << QObject::tr("压缩凝视相机数据")<<QObject::tr("扫描前半场中波红外数据") << QObject::tr("扫描后半场中波红外数据") << QObject::tr("扫描前半场短波红外数据") << QObject::tr("扫描后半场短波红外数据")<< QObject::tr("凝视相机短波红外数据")<< QObject::tr("凝视相机中波红外及可见光数据")<< QObject::tr("压缩直通中波扫描数据")<< QObject::tr("压缩直通短波扫描数据")<< QObject::tr("压缩直通凝视相机数据");bool ok;QString item = QInputDialog::getItem( 0, QObject::tr("获取压缩数据类型"),QObject::tr("输入压缩数据类型:"), items, 0, false, &ok);if (ok && !item.isEmpty())res = item;return res;}//由中文数据类型，转化为英文数据类型    2015-0707QString GetDataTypeName(QString dataType){QString res;if ("压缩中波扫描数据" == dataType){res = "Scan-Medium-CompressData";}else if ("压缩短波扫描数据" == dataType){res = "Scan-Short-CompressData";}else if ("压缩凝视相机数据" == dataType){res = "Gaze-CompressData";}else if ("扫描前半场中波红外数据" == dataType){res = "Scan-Medium-ImageLeft";}else if ("扫描后半场中波红外数据" == dataType){res = "Scan-Medium-ImageRight";}else if ("扫描前半场短波红外数据" == dataType){res = "Scan-Short-ImageLeft";}else if ("扫描后半场短波红外数据" == dataType){res = "Scan-Short-ImageRight";}else if ("凝视相机短波红外数据" == dataType){res = "Gaze-ImageLeft";}else if ("凝视相机中波红外及可见光数据" == dataType){res = "Gaze-ImageRight";}else if ("压缩直通中波扫描数据" == dataType){res = "Scan-Medium-ThroughData";}else if ("压缩直通短波扫描数据" == dataType){res = "Scan-Short-ThroughData";}else if ("压缩直通凝视相机数据" == dataType){res = "Gaze-ThroughData";}elseres = "";return res;}QString GetDataTypeCName(QString dataType){QString res;if ("Scan-Medium-CompressData" == dataType){res = "压缩中波扫描数据";}else if ("Scan-Short-CompressData" == dataType){res = "压缩短波扫描数据";}else if ("Gaze-CompressData" == dataType){res = "压缩凝视相机数据";}else if ("Scan-Medium-ImageLeft" == dataType){res = "扫描前半场中波红外数据";}else if ("Scan-Medium-ImageRight" == dataType){res = "扫描后半场中波红外数据";}else if ("Scan-Short-ImageLeft" == dataType){res = "扫描前半场短波红外数据";}else if ("Scan-Short-ImageRight" == dataType){res = "扫描后半场短波红外数据";}else if ("Gaze-ImageLeft" == dataType){res = "凝视相机短波红外数据";}else if ("Gaze-ImageRight" == dataType){res = "凝视相机中波红外及可见光数据";}else if ("Scan-Medium-ThroughData" == dataType){res = "压缩直通中波扫描数据";}else if ("Scan-Short-ThroughData" == dataType){res = "压缩直通短波扫描数据";}else if ("Gaze-ThroughtData" == dataType){res = "压缩直通凝视相机数据";}elseres = "";return res;}QString GetInputIs12Bit(){QString res;QStringList items;items << QObject::tr("12bit") << QObject::tr("10bit");bool ok;QString item = QInputDialog::getItem(0,QObject::tr("获取图像位数"),QObject::tr("输入图像位数"),items,0,false,&ok);if (ok && !item.isEmpty())res = item;return res;}QString GetInputIsMissRate(){QString res;QStringList items;items << QObject::tr("不进行误码率对比") << QObject::tr("与直传数据误码率对比") << QObject::tr("与标准源数据误码率对比");bool ok;QString item = QInputDialog::getItem(0,QObject::tr("误码率对比"),QObject::tr("选择是否误码率对比"),items,0,false,&ok);if (ok&& !item.isEmpty()){res = item;}return res;}//获取离线和回放模式下网络分发速率QString getNetworkSpeed(){QString res;QStringList items;items << QObject::tr("600") << QObject::tr("100")<< QObject::tr("20") << QObject::tr("2");bool ok;QString item = QInputDialog::getItem(0,QObject::tr("获取分发速率"),QObject::tr("输入分发速率"),items,0,false,&ok);if (ok && !item.isEmpty())res = item;return res;}//获取输出压缩数据类型QString GetOutputDecompressLeftDataType(){QString res;QStringList items;items << QObject::tr("Scan-Medium-Left")<< QObject::tr("Scan-Short-CompressData-Left") << QObject::tr("Gaze-CompressData-Short");bool ok;QString item = QInputDialog::getItem( 0, QObject::tr("获取输出数据类型"),QObject::tr("输入输出数据类型:"), items, 0, false, &ok);if (ok && !item.isEmpty())res = item;return res;}QString GetOutputDecompressRightDataType(){QString res;QStringList items;items << QObject::tr("Scan-Medium-Right")<< QObject::tr("Scan-Short-CompressData-Right") << QObject::tr("Gaze-CompressData-Visual-Medium");bool ok;QString item = QInputDialog::getItem( 0, QObject::tr("获取输出数据类型"),QObject::tr("输入输出数据类型:"), items, 0, false, &ok);if (ok && !item.isEmpty())res = item;return res;}void MakeRawPic4Test(const QString& fileName , int width , int height ){int size = width*height;unsigned short * pData  = new unsigned short[size];for(int i = 0 ;i<size;++i)pData[i] = qrand()%256;SaveBinDataToFile(fileName , pData , size*sizeof(unsigned short));delete [] pData;}#include <algorithm>//int method_cvt ;////0 高八位//1 低八位//2 最大最小值量化//3 固定值量化//void LoadRawPic4Test(const QString& fileName , int width , int height ,QImage& img , int method_cvt /*= 0*/)void LoadRawPic4Test(unsigned char* data, unsigned char* CharData, int width, int height, QImage& img, bool is12bit, QString dataType,int method_cvt /*=0*/  )    //新改写一下函数，第一个参数为内存{//QByteArray rawData = GetBinDataFromFile(fileName);//unsigned short* pData = (unsigned short*)rawData.constData();unsigned short* pData = (unsigned short*)data;unsigned char* pCharData = CharData;    // 从参数传进来的指针，比在函数里面用New申请堆空间要好。不然容易造成很多碎片int shortsize = sizeof(short);int temp;unsigned int SamplingRate =1;switch(method_cvt){case 1:{for(int h = 0 ; h< height ; ++h)for(int w = 0; w<width ; ++w)pCharData[h*width+w] = pData[h*width+w]&255;}break;case 2:{unsigned shortMin = 50 , shortMax = 1000;shortMin = *(std::min_element(pData , pData+width*height ));shortMax = *(std::max_element(pData , pData+width*height ));for(int h = 0 ; h< height ; ++h)for(int w = 0; w<width ; ++w)pCharData[h*width+w] = float(pData[h*width+w] - shortMin)*255/(shortMax-shortMin);}break;case 3:{for(int h = 0 ; h< height ; ++h)for(int w = 0; w<width ; ++w)pCharData[h*width+w] = float(pData[h*width+w])*255/1024;}break;default:if(dataType == "Gaze-CompressData" ){SamplingRate = 1;}else{SamplingRate = 2;}//当图像类型为扫描图像时，由于图像过大，在这里进行采样。for(int h = 0 ; h < height /SamplingRate; h++)for(int w = 0; w < width/SamplingRate; w++)if (is12bit){pCharData[h*width/SamplingRate+w] = (pData[h*SamplingRate*width+w*SamplingRate]&4080)>>4;}else{pCharData[h*width/SamplingRate+w] = (pData[h*SamplingRate*width+w*SamplingRate]&1020)>>2;}width = width/SamplingRate;height = height/SamplingRate;break;}GetImageFromData(img , pCharData ,  width , height);//delete [] pCharData;}QStringList GetUnderDirFiles(const QString& dirName , const QString& strFilter /*= "*.*"*/){QStringList finalstrlis;finalstrlis += GetDirFiles(dirName ,strFilter);QDir dir(dirName);QStringList dirList = dir.entryList( QDir::Dirs | QDir::NoDotAndDotDot );for(int i = 0 ; i< dirList.size(); ++i){finalstrlis += GetDirFiles( dir.absoluteFilePath(dirList[i]) , strFilter);}return finalstrlis;}QStringList GetDirFiles(const QString& dirName , const QString& strFilter /*= "*.*"*/){QStringList strlis;QDir dir(dirName);strlis = dir.entryList( QStringList() << strFilter , QDir::Files|QDir::NoSymLinks );for(int i = 0 ; i< strlis.size(); ++i)strlis[i] = dir.absoluteFilePath(strlis[i]);//qDebug() << __FUNCTION__ ;//qDebug()<< strlis;return strlis;}void startShiftImpl(unsigned char*outBuf,unsigned char* dataBuf,const int& dataLength ){unsigned char low4bit;unsigned char high4bit;for (int i=0;i< dataLength -1;++i){high4bit = ( dataBuf[i]& 0x0f) << 4;low4bit = ( dataBuf[i+1]& 0xf0) >> 4;outBuf[i]=low4bit|high4bit;}}void startShiftImpl(unsigned char*outBuf,unsigned char* dataBuf,int& dataLength,int& index ){unsigned char low4bit;unsigned char high4bit;for (int i=0;i< dataLength -index;++i){high4bit = ( dataBuf[index-1+i]& 0x0f) << 4;low4bit =  ( dataBuf[index+i]& 0xf0) >> 4;outBuf[i]=low4bit|high4bit;}}quint64 getDiskFreeSpace(QString driver){LPCTSTR lpcwstrDriver = (LPCWSTR)driver.utf16();ULARGE_INTEGER liFreeBytesAvailable,liTotalBytes,liTotalFreeBytes;if (!GetDiskFreeSpaceEx(lpcwstrDriver,&liFreeBytesAvailable,&liTotalBytes,&liTotalFreeBytes)){qDebug()<<"ERROR:Call to GetDiskFreeSpaceEx() failed.";return 0;}return (quint64) liTotalFreeBytes.QuadPart/1024/1024/1024;}quint64 getDiskSpace(QString driver){LPCTSTR lpcwstrDriver = (LPCWSTR)driver.utf16();ULARGE_INTEGER liFreeBytesAvailable,liTotalBytes,liTotalFreeBytes;if (!GetDiskFreeSpaceEx(lpcwstrDriver,&liFreeBytesAvailable,&liTotalBytes,&liTotalFreeBytes)){qDebug()<<"ERROR:Call to GetDiskFreeSpaceEx() failed.";return 0;}return (quint64) liTotalBytes.QuadPart/1024/1024/1024;}void ComplementDataToFixedSize(QByteArray & data, int size){if (data.size() < size){QByteArray temp;temp.fill(0x00,size - data.size());data.append(temp);}}