gstreamer/subprojects/gst-examples/playback/player/qt/main.cpp

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/* GStreamer
*
* Copyright (C) 2015 Alexandre Moreno <alexmorenocano@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <QApplication>
#include <QQmlApplicationEngine>
#include <QQmlProperty>
#include <QQuickItem>
#include <QCommandLineParser>
#include <QStringList>
#include <QUrl>
#include <gst/gst.h>
int main(int argc, char *argv[])
{
/* Use QApplication instead of QGuiApplication since the latter is needed
* for widgets like the QFileDialog to work */
QApplication app(argc, argv);
int result;
QCommandLineParser parser;
parser.setApplicationDescription("GstPlayer");
parser.addHelpOption();
parser.addPositionalArgument("urls",
QCoreApplication::translate("main", "URLs to play, optionally."), "[urls...]");
parser.process(app);
QList<QUrl> media_files;
const QStringList args = parser.positionalArguments();
foreach (const QString file, args) {
media_files << QUrl::fromUserInput(file);
}
/* the plugin must be loaded before loading the qml file to register the
* GstGLVideoItem qml item
* FIXME Add a QQmlExtensionPlugin into qmlglsink to register GstGLVideoItem
* with the QML engine, then remove this */
gst_init(NULL,NULL);
GstElement *sink = gst_element_factory_make ("qmlglsink", NULL);
gst_object_unref(sink);
QQmlApplicationEngine engine;
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
QObject *rootObject = engine.rootObjects().first();
QObject *player = rootObject->findChild<QObject*>("player");
QObject *videoItem = rootObject->findChild<QObject*>("videoItem");
QVariant v;
v.setValue<QObject*>(videoItem);
QQmlProperty(player, "videoOutput").write(v);
if (!media_files.isEmpty()) {
QVariant v;
v.setValue<QList<QUrl>>(media_files);
QQmlProperty(player, "playlist").write(QVariant (v));
}
result = app.exec();
gst_deinit ();
return result;
}