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/*
Copyright (C) 2012 Collabora Ltd. <info@collabora.com>
@author George Kiagiadakis <george.kiagiadakis@collabora.com>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "graphicsvideosurface_p.h"
#include "../elementfactory.h"
#include "../../QGlib/connect.h"
#ifndef QTGSTREAMER_UI_NO_OPENGL
# include <QtOpenGL/QGLWidget>
#endif
namespace QGst {
namespace Ui {
GraphicsVideoSurface::GraphicsVideoSurface(QGraphicsView *parent)
: QObject(parent), d(new GraphicsVideoSurfacePrivate)
{
d->view = parent;
}
GraphicsVideoSurface::~GraphicsVideoSurface()
{
if (!d->videoSink.isNull()) {
d->videoSink->setState(QGst::StateNull);
}
delete d;
}
ElementPtr GraphicsVideoSurface::videoSink() const
{
if (d->videoSink.isNull()) {
#ifndef QTGSTREAMER_UI_NO_OPENGL
//if the viewport is a QGLWidget, profit from it
QGLWidget *glw = qobject_cast<QGLWidget*>(d->view->viewport());
if (glw) {
d->videoSink = QGst::ElementFactory::make("qtglvideosink");
if (!d->videoSink.isNull()) {
glw->makeCurrent();
d->videoSink->setProperty("glcontext", (void*) QGLContext::currentContext());
glw->doneCurrent();
if (d->videoSink->setState(QGst::StateReady) != QGst::StateChangeSuccess) {
d->videoSink.clear();
}
}
}
#endif
if (d->videoSink.isNull()) {
d->videoSink = QGst::ElementFactory::make("qtvideosink");
if (d->videoSink.isNull()) {
qCritical("Failed to create qtvideosink. Make sure it is installed correctly");
return ElementPtr();
}
}
QGlib::connect(d->videoSink, "update",
const_cast<GraphicsVideoSurface*>(this),
&GraphicsVideoSurface::onUpdate);
}
return d->videoSink;
}
void GraphicsVideoSurface::onUpdate()
{
Q_FOREACH(GraphicsVideoWidget *item, d->items) {
item->update(item->rect());
}
}
} // namespace Ui
} // namespace QGst
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