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-rw-r--r--src/gsttools/qgstreamervideorenderer.cpp117
1 files changed, 117 insertions, 0 deletions
diff --git a/src/gsttools/qgstreamervideorenderer.cpp b/src/gsttools/qgstreamervideorenderer.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgstreamervideorenderer_p.h"
+#include <private/qvideosurfacegstsink_p.h>
+#include <qabstractvideosurface.h>
+
+#include <QDebug>
+
+#include <gst/gst.h>
+
+QGstreamerVideoRenderer::QGstreamerVideoRenderer(QObject *parent)
+ :QVideoRendererControl(parent),m_videoSink(0), m_surface(0)
+{
+}
+
+QGstreamerVideoRenderer::~QGstreamerVideoRenderer()
+{
+ if (m_videoSink)
+ gst_object_unref(GST_OBJECT(m_videoSink));
+}
+
+GstElement *QGstreamerVideoRenderer::videoSink()
+{
+ if (!m_videoSink && m_surface) {
+ m_videoSink = QVideoSurfaceGstSink::createSink(m_surface);
+ gst_object_ref(GST_OBJECT(m_videoSink)); //Take ownership
+ gst_object_sink(GST_OBJECT(m_videoSink));
+ }
+
+ return reinterpret_cast<GstElement*>(m_videoSink);
+}
+
+
+QAbstractVideoSurface *QGstreamerVideoRenderer::surface() const
+{
+ return m_surface;
+}
+
+void QGstreamerVideoRenderer::setSurface(QAbstractVideoSurface *surface)
+{
+ if (m_surface != surface) {
+ //qDebug() << Q_FUNC_INFO << surface;
+ if (m_videoSink)
+ gst_object_unref(GST_OBJECT(m_videoSink));
+
+ m_videoSink = 0;
+
+ if (m_surface) {
+ disconnect(m_surface, SIGNAL(supportedFormatsChanged()),
+ this, SLOT(handleFormatChange()));
+ }
+
+ bool wasReady = isReady();
+
+ m_surface = surface;
+
+ if (m_surface) {
+ connect(m_surface, SIGNAL(supportedFormatsChanged()),
+ this, SLOT(handleFormatChange()));
+ }
+
+ if (wasReady != isReady())
+ emit readyChanged(isReady());
+
+ emit sinkChanged();
+ }
+}
+
+void QGstreamerVideoRenderer::handleFormatChange()
+{
+ //qDebug() << "Supported formats list has changed, reload video output";
+
+ if (m_videoSink)
+ gst_object_unref(GST_OBJECT(m_videoSink));
+
+ m_videoSink = 0;
+ emit sinkChanged();
+}