QT 利用slite3和mediainfodll类获取多媒体标签

源文件目录下//PRO文件#利用sqlite3数据库操作，将gbk码转换成unicode码#KAKASI2014-6-29QT+=\widgets\testlibHEADERS+=\QMediaInfo.h\QUnitTest.hSOURCES+=\test.cpp\QMediaInfo.cpp\QUnitTest.cppLIBS+=D:\QTPractice\mediainfo\sqlite3.lib//QMEDIAINFO。h/*功能：封装MediaInfodll功能KAKASI 2014-6-29*/#define _UNICODE#ifndef QMEDIAINFO_H#define QMEDIAINFO_H#include "MediaInfoDLL.h"#include <QString>class QMediaInfo{public:    QMediaInfo(QString &fileName);    ~QMediaInfo();    QString getInfo(QString str,bool willConvert = false) const;    template<typename T>    static void d(T t, bool b=false);private:    MediaInfoDLL::MediaInfo *MI;};#endif // QMEDIAINFO_H//.CPP文件#include "QMediaInfo.h"#include <QDebug>#include <QFileInfo>#include "sqlite3.h"#include "getGBK.h"#include <QMessageBox>bool isExist(QString fileName){    QFileInfo info(fileName);    return info.exists();}template<typename T>void QMediaInfo::d(T t, bool b){    //return;    if (b)        qDebug() << hex << t;    else        qDebug() << t;}QMediaInfo::QMediaInfo(QString &fileName){    using namespace MediaInfoDLL;    MI = new MediaInfo;    if(MI->IsReady())        d("MI is READY");    if(isExist("MediaInfo.dll"))        d("mediainfo.dll is exist");    if(isExist(fileName))        d(fileName + " is exist");    //can not use (LPCWSTR)"shui2.mp3"    const String name = fileName.toStdWString();    size_t b = MI->Open(name);    if(b == 0)        d(fileName + " is not opened");    if(b == 1)    {        d(fileName + " is opened");    }}//功能，接受一个QString，将其转换下GBK->UNICODEQString convert(QString str){    //gbk -> unicode    //std::string unicode[6] = {"4e2d","6587","4eca","751f","4eca","4e16"};    //getString(unicode,6,false);//CDC0,BAE9,B8D5    //gbk 中文从81e0开始    QString temp = str;    QString res="";    QString uniRes="";    for (int i = 0; i < temp.length(); ++i)    {        QChar ch = temp.at(i);  //cd        QString strs="";        strs.setNum(ch.unicode(),16);//205        res.append(strs);    }    //QMediaInfo::d(res);    //每次读取1个，如果大于81，从读取2个，查找替换    QString perStr=res.mid(0,2);    int l = res.length();    bool b;    std::string s[1];    std::string r;    for(int pos = 0; pos < l;)    {        //QMediaInfo::d("next 2 "+perStr);        if (perStr.toInt(&b,16) >= 0x81)        {            perStr=res.mid(pos,4);            //QMediaInfo::d(" 4 "+perStr);            pos += 4;            //转换            s[0]= perStr.toStdString();            r = getString("code.db",s,1,false);            //QMediaInfo::d(QString::fromStdString(r));            QString temp = "0x"+ QString::fromStdString(r);            QChar tmp = temp.toInt(&b,16);            //QMediaInfo::d(tmp);            uniRes.append(tmp);            res.replace(perStr,QString::fromStdString(r));        }        else        {            QChar tmp = perStr.toInt(&b,16);            uniRes.append(tmp);            pos += 2;        }        //读取下一个        if (pos + 2 <= l)        {            perStr=res.mid(pos,2);        }    }    //QMediaInfo::d(res);    //QMediaInfo::d(uniRes);    //QChar ss = 0x5c60;    //QMediaInfo::d(ss);    return uniRes;}QString QMediaInfo::getInfo(QString str, bool willConvert) const{    using namespace MediaInfoDLL;    QString temp;    QString tmp(str);    String all = MI->Get(Stream_General,0,tmp.toStdWString());    if (str.toUpper() == "ALL")        all = MI->Inform();    temp = QString::fromStdWString(all);    if (willConvert)temp = convert(temp);    return temp;}QMediaInfo::~QMediaInfo(){    MI->Close();    delete MI;    MI = 0;}//测试文件#include <QtWidgets/QApplication>#include "QMediaInfo.h"int main(int argc, char *argv[]){    QApplication app(argc, argv);    QString fileName = "bw.mp3";    QMediaInfo info(fileName);    //info.getAll();    QMediaInfo::d(info.getInfo("Performer",true));    QMediaInfo::d(info.getInfo("Title",true));    QMediaInfo::d(info.getInfo("BitRate"));    QMediaInfo::d(info.getInfo("Duration"));    //QMediaInfo::d(info.getInfo("All"));    return app.exec();}//单元测试文件.h#ifndef QUNITTEST_H#define QUNITTEST_H#include <QObject>#include "QMediaInfo.h"class QUnitTest : public QObject{    Q_OBJECTpublic:    QUnitTest();private Q_SLOTS:    void initTestCase();    void cleanupTestCase();    void testCase1();    void testCase1_data();};#endif // QUNITTEST_H//单元测试文件.cpp#include <QString>#include <QtTest>#include <QObject>#include <QDebug>#include "QUnitTest.h"QUnitTest::QUnitTest(){}void QUnitTest::initTestCase(){}void QUnitTest::cleanupTestCase(){}void QUnitTest::testCase1(){    //TestClass p;    //QVERIFY(p.Sun() == 0);    //above two lines is right without _data function    //QString& getInfo("Performer",true)    QString fileName = "bw.mp3";//D:/音乐/霸王别姬.mp3";    QMediaInfo info(fileName);    QFETCH(QString, a);    QFETCH(bool ,   b);    QFETCH(QString, result);    QCOMPARE(info.getInfo(a,b), result);}void QUnitTest::testCase1_data(){    QTest::addColumn<QString>("a");    QTest::addColumn<bool>("b");    QTest::addColumn<QString>("result");    QTest::newRow("0") <<"BitRate"<<false<<"56000";    QTest::newRow("1") <<"Performer"<<true<<"屠洪刚";    QTest::newRow("2") <<"Title"<<true<<"霸王别姬";}//QTEST_MAIN(QUnitTest)