/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QGSTREAMERVIDEOOUTPUTCONTROL_H
#define QGSTREAMERVIDEOOUTPUTCONTROL_H

#include <gst/gst.h>

#include <QtCore/qobject.h>

QT_BEGIN_NAMESPACE

class QGstreamerVideoRendererInterface
{
public:
    virtual ~QGstreamerVideoRendererInterface();
    virtual GstElement *videoSink() = 0;

    //stopRenderer() is called when the renderer element is stopped.
    //it can be reimplemented when video renderer can't detect
    //changes to NULL state but has to free video resources.
    virtual void stopRenderer() {}

    //the video output is configured, usually after the first paint event
    //(winId is known,
    virtual bool isReady() const { return true; }

    //signals:
    //void sinkChanged();
    //void readyChanged(bool);
};

#define QGstreamerVideoRendererInterface_iid "com.nokia.Qt.QGstreamerVideoRendererInterface/1.0"
Q_DECLARE_INTERFACE(QGstreamerVideoRendererInterface, QGstreamerVideoRendererInterface_iid)
QT_END_NAMESPACE

#endif