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authorJonas Rabbe <jonas.rabbe@nokia.com>2012-03-22 11:04:03 +1000
committerQt by Nokia <qt-info@nokia.com>2012-04-27 09:22:09 +0200
commita3b6eabd45b452b98c5b7c45df8a332ad018b8f1 (patch)
tree9f3a3fd7bfd6c514a472ad0103037476da4c6e0f /src/gsttools/qgstreamervideorenderer.cpp
parente44bcf0a384c15e7df593ec3f3cee30775f3f1ef (diff)
Split gstreamer plugin into smaller plugins providing fewer services
The gstreamer blob has been split into four plugins: audiodecoder, camerabin, mediacapture, and mediaplayer. Note: camerabin is still disabled because it is untested camerabin2 implementation. A new qmake configuration use_gstreamer_camera has been introduced and is needed for the mediacapture plugin to expose the camera service. This configuration has been disabled by default. Shared functionality has been moved to the internal gsttools library. Change-Id: Ifb2604f440cfa97513d39f5d7978766c88eaec45 Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
Diffstat (limited to 'src/gsttools/qgstreamervideorenderer.cpp')
-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
new file mode 100644
index 00000000..bd2a0b12
--- /dev/null
+++ b/src/gsttools/qgstreamervideorenderer.cpp
@@ -0,0 +1,117 @@
+/****************************************************************************
+**
+** 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();
+}