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Viewing changes to src/QGst/Ui/graphicsvideosurface.cpp

  • Committer: Package Import Robot
  • Author(s): Felix Geyer
  • Date: 2012-06-15 15:03:26 UTC
  • mfrom: (1.1.5 sid)
  • Revision ID: package-import@ubuntu.com-20120615150326-pkmdog620pkytcgt
Tags: 0.10.2-2ubuntu1
* Merge from Debian unstable, remaining changes:
  - Enable unit tests.
    + Build-depend on gstreamer0.10-plugins-base.

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src/QGst/Ui/graphicsvideosurface.cpp
 
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/*
 
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    Copyright (C) 2012 Collabora Ltd. <info@collabora.com>
 
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      @author George Kiagiadakis <george.kiagiadakis@collabora.com>
 
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    This library is free software; you can redistribute it and/or modify
 
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    it under the terms of the GNU Lesser General Public License as published
 
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    by the Free Software Foundation; either version 2.1 of the License, or
 
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    (at your option) any later version.
 
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    This program is distributed in the hope that it will be useful,
 
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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    GNU Lesser General Public License for more details.
 
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    You should have received a copy of the GNU Lesser General Public License
 
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    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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*/
 
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#include "graphicsvideosurface_p.h"
 
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#include "../elementfactory.h"
 
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#include "../../QGlib/connect.h"
 
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#ifndef QTGSTREAMER_UI_NO_OPENGL
 
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# include <QtOpenGL/QGLWidget>
 
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#endif
 
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namespace QGst {
 
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namespace Ui {
 
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GraphicsVideoSurface::GraphicsVideoSurface(QGraphicsView *parent)
 
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    : QObject(parent), d(new GraphicsVideoSurfacePrivate)
 
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{
 
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    d->view = parent;
 
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}
 
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GraphicsVideoSurface::~GraphicsVideoSurface()
 
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{
 
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    if (!d->videoSink.isNull()) {
 
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        d->videoSink->setState(QGst::StateNull);
 
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    }
 
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    delete d;
 
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}
 
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ElementPtr GraphicsVideoSurface::videoSink() const
 
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{
 
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    if (d->videoSink.isNull()) {
 
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#ifndef QTGSTREAMER_UI_NO_OPENGL
 
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        //if the viewport is a QGLWidget, profit from it
 
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        QGLWidget *glw = qobject_cast<QGLWidget*>(d->view->viewport());
 
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        if (glw) {
 
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            d->videoSink = QGst::ElementFactory::make("qtglvideosink");
 
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            if (!d->videoSink.isNull()) {
 
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                glw->makeCurrent();
 
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                d->videoSink->setProperty("glcontext", (void*) QGLContext::currentContext());
 
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                glw->doneCurrent();
 
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                if (d->videoSink->setState(QGst::StateReady) != QGst::StateChangeSuccess) {
 
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                    d->videoSink.clear();
 
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                }
 
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            }
 
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        }
 
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#endif
 
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        if (d->videoSink.isNull()) {
 
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            d->videoSink = QGst::ElementFactory::make("qtvideosink");
 
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            if (d->videoSink.isNull()) {
 
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                qCritical("Failed to create qtvideosink. Make sure it is installed correctly");
 
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                return ElementPtr();
 
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            }
 
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        }
 
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        QGlib::connect(d->videoSink, "update",
 
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                       const_cast<GraphicsVideoSurface*>(this),
 
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                       &GraphicsVideoSurface::onUpdate);
 
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    }
 
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    return d->videoSink;
 
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}
 
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void GraphicsVideoSurface::onUpdate()
 
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{
 
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    Q_FOREACH(GraphicsVideoWidget *item, d->items) {
 
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        item->update(item->rect());
 
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    }
 
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}
 
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} // namespace Ui
 
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} // namespace QGst