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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgstreamervideorenderer_p.h"
#include <private/qvideosurfacegstsink_p.h>
#include <private/qgstutils_p.h>
#include <qabstractvideosurface.h>
#include <QtCore/qdebug.h>
#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);
qt_gst_object_ref_sink(GST_OBJECT(m_videoSink)); //Take ownership
}
return reinterpret_cast<GstElement*>(m_videoSink);
}
void QGstreamerVideoRenderer::stopRenderer()
{
if (m_surface)
m_surface->stop();
}
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.data(), SIGNAL(supportedFormatsChanged()),
this, SLOT(handleFormatChange()));
}
bool wasReady = isReady();
m_surface = surface;
if (m_surface) {
connect(m_surface.data(), 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();
}
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