main.cpp Example File

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 #include <QtCore/QString>
 #include <QtCore/QStringList>
 #include <QtDeclarative/QDeclarativeContext>
 #include <QtGui/QApplication>
 #include <QtGui/QDesktopServices>
 #include <QtGui/QGraphicsObject>
 #include "qmlapplicationviewer.h"
 #include "trace.h"

 #ifdef PERFORMANCEMONITOR_SUPPORT
 #include "painteventmonitor.h"
 #include "performancemonitordeclarative.h"
 #endif

 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);

 #ifdef PERFORMANCEMONITOR_SUPPORT
     PerformanceMonitor::qmlRegisterTypes();
 #endif

     QString source1, source2;
     qreal volume = 0.5;
     QStringList args = app.arguments();
     PerformanceMonitor::State performanceMonitorState;
     bool sourceIsUrl = false;
     for (int i=1; i<args.count(); ++i) {
         const QString &arg = args.at(i);
         if (arg.startsWith('-')) {
             if ("-volume" == arg) {
                 if (i+1 < args.count())
                     volume = 0.01 * args.at(++i).toInt();
                 else
                     qtTrace() << "Option \"-volume\" takes a value";
             }
 #ifdef PERFORMANCEMONITOR_SUPPORT
             else if (PerformanceMonitor::parseArgument(arg, performanceMonitorState)) {
                 // Do nothing
             }
 #endif
             else if ("-url" == arg) {
                 sourceIsUrl = true;
             } else {
                 qtTrace() << "Option" << arg << "ignored";
             }
         } else {
             if (source1.isEmpty())
                 source1 = arg;
             else if (source2.isEmpty())
                 source2 = arg;
             else
                 qtTrace() << "Argument" << arg << "ignored";
         }
     }

     QUrl url1, url2;
     if (sourceIsUrl) {
         url1 = source1;
         url2 = source2;
     } else {
         if (!source1.isEmpty())
             url1 = QUrl::fromLocalFile(source1);
         if (!source2.isEmpty())
             url2 = QUrl::fromLocalFile(source2);
     }

     QmlApplicationViewer viewer;

     viewer.setOrientation(QmlApplicationViewer::ScreenOrientationLockLandscape);
     viewer.setMainQmlFile(QLatin1String("qml/qmlvideo/main.qml"));
     QGraphicsObject *rootObject = viewer.rootObject();
     rootObject->setProperty("source1", url1);
     rootObject->setProperty("source2", url2);
     rootObject->setProperty("volume", volume);

 #ifdef PERFORMANCEMONITOR_SUPPORT
     if (performanceMonitorState.valid) {
         rootObject->setProperty("perfMonitorsLogging", performanceMonitorState.logging);
         rootObject->setProperty("perfMonitorsVisible", performanceMonitorState.visible);
     }
     PaintEventMonitor paintEventMonitor;
     paintEventMonitor.setTarget(viewer.viewport());
     QObject::connect(&paintEventMonitor, SIGNAL(targetPainted()),
                      rootObject, SLOT(qmlFramePainted()));
 #endif

     QString videoPath;
     const QString moviesLocation = QDesktopServices::storageLocation(QDesktopServices::MoviesLocation);
     if (!moviesLocation.isEmpty())
         videoPath = moviesLocation;
     viewer.rootContext()->setContextProperty("videoPath", videoPath);

     QMetaObject::invokeMethod(rootObject, "init");

     viewer.showExpanded();

     return app.exec();
 }