main.cpp Example File
multimedia/video/qmlvideo/main.cpp
#include <QtCore/QStandardPaths>
#include <QtCore/QString>
#include <QtCore/QStringList>
#include <QtQml/QQmlContext>
#include <QtQml/QQmlEngine>
#include <QtGui/QGuiApplication>
#include <QtQuick/QQuickItem>
#include <QtQuick/QQuickView>
#include "trace.h"
#ifdef PERFORMANCEMONITOR_SUPPORT
#include "performancemonitordeclarative.h"
#endif
static const QString DefaultFileName1 = "";
static const QString DefaultFileName2 = "";
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
#ifdef PERFORMANCEMONITOR_SUPPORT
PerformanceMonitor::qmlRegisterTypes();
#endif
QString source1, source2;
qreal volume = 0.5;
QStringList args = app.arguments();
#ifdef PERFORMANCEMONITOR_SUPPORT
PerformanceMonitor::State performanceMonitorState;
#endif
bool sourceIsUrl = false;
for (int i = 1; i < args.size(); ++i) {
const QByteArray arg = args.at(i).toUtf8();
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 (performanceMonitorState.parseArgument(arg)) {
}
#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);
}
QQuickView viewer;
viewer.setSource(QUrl("qrc:///qml/qmlvideo/main.qml"));
QObject::connect(viewer.engine(), &QQmlEngine::quit, &viewer, &QQuickView::close);
QQuickItem *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);
}
QObject::connect(&viewer, SIGNAL(afterRendering()),
rootObject, SLOT(qmlFramePainted()));
#endif
const QStringList moviesLocation = QStandardPaths::standardLocations(QStandardPaths::MoviesLocation);
const QUrl videoPath =
QUrl::fromLocalFile(moviesLocation.isEmpty() ?
app.applicationDirPath() :
moviesLocation.front());
viewer.rootContext()->setContextProperty("videoPath", videoPath);
QMetaObject::invokeMethod(rootObject, "init");
viewer.setMinimumSize(QSize(640, 360));
viewer.show();
return app.exec();
}