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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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGSTREAMERVIDEOOVERLAY_P_H
#define QGSTREAMERVIDEOOVERLAY_P_H
#include <private/qgstreamerbushelper_p.h>
#include <private/qgstreamerbufferprobe_p.h>
#include <QtGui/qwindowdefs.h>
#include <QtCore/qsize.h>
QT_BEGIN_NAMESPACE
class QGstreamerVideoOverlay
: public QObject
, public QGstreamerSyncMessageFilter
, public QGstreamerBusMessageFilter
, private QGstreamerBufferProbe
{
Q_OBJECT
Q_INTERFACES(QGstreamerSyncMessageFilter QGstreamerBusMessageFilter)
public:
explicit QGstreamerVideoOverlay(QObject *parent = 0, const QByteArray &elementName = QByteArray());
virtual ~QGstreamerVideoOverlay();
GstElement *videoSink() const;
QSize nativeVideoSize() const;
void setWindowHandle(WId id);
void expose();
void setRenderRectangle(const QRect &rect);
bool isActive() const;
Qt::AspectRatioMode aspectRatioMode() const;
void setAspectRatioMode(Qt::AspectRatioMode mode);
int brightness() const;
void setBrightness(int brightness);
int contrast() const;
void setContrast(int contrast);
int hue() const;
void setHue(int hue);
int saturation() const;
void setSaturation(int saturation);
bool processSyncMessage(const QGstreamerMessage &message);
bool processBusMessage(const QGstreamerMessage &message);
Q_SIGNALS:
void nativeVideoSizeChanged();
void activeChanged();
void brightnessChanged(int brightness);
void contrastChanged(int contrast);
void hueChanged(int hue);
void saturationChanged(int saturation);
private:
GstElement *findBestVideoSink() const;
void setWindowHandle_helper(WId id);
void updateIsActive();
void probeCaps(GstCaps *caps);
static void showPrerollFrameChanged(GObject *, GParamSpec *, QGstreamerVideoOverlay *);
GstElement *m_videoSink;
QSize m_nativeVideoSize;
bool m_isActive;
bool m_hasForceAspectRatio;
bool m_hasBrightness;
bool m_hasContrast;
bool m_hasHue;
bool m_hasSaturation;
bool m_hasShowPrerollFrame;
WId m_windowId;
Qt::AspectRatioMode m_aspectRatioMode;
int m_brightness;
int m_contrast;
int m_hue;
int m_saturation;
};
QT_END_NAMESPACE
#endif // QGSTREAMERVIDEOOVERLAY_P_H
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