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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
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**
**
****************************************************************************/
#ifndef QGSTREAMERVIDEOOVERLAY_P_H
#define QGSTREAMERVIDEOOVERLAY_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <private/qgstreamerbushelper_p.h>
#include <private/qgstreamerbufferprobe_p.h>
#include <QtGui/qwindowdefs.h>
#include <QtCore/qsize.h>
QT_BEGIN_NAMESPACE
class QGstreamerSinkProperties;
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;
void setVideoSink(GstElement *);
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) override;
bool processBusMessage(const QGstreamerMessage &message) override;
Q_SIGNALS:
void nativeVideoSizeChanged();
void activeChanged();
void brightnessChanged(int brightness);
void contrastChanged(int contrast);
void hueChanged(int hue);
void saturationChanged(int saturation);
private:
void setWindowHandle_helper(WId id);
void updateIsActive();
void probeCaps(GstCaps *caps) override;
static void showPrerollFrameChanged(GObject *, GParamSpec *, QGstreamerVideoOverlay *);
GstElement *m_videoSink = nullptr;
QSize m_nativeVideoSize;
bool m_isActive = false;
QGstreamerSinkProperties *m_sinkProperties = nullptr;
WId m_windowId = 0;
};
QT_END_NAMESPACE
#endif // QGSTREAMERVIDEOOVERLAY_P_H
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