c2c7171682
Task-number: QTBUG-48595 Change-Id: I1370d9229b0606582cbd828de84ee2717dca3daf Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>
132 lines
4.0 KiB
C++
132 lines
4.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGSTREAMERVIDEOOVERLAY_P_H
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#define QGSTREAMERVIDEOOVERLAY_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <private/qgstreamerbushelper_p.h>
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#include <private/qgstreamerbufferprobe_p.h>
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#include <QtGui/qwindowdefs.h>
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#include <QtCore/qsize.h>
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QT_BEGIN_NAMESPACE
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class QGstreamerVideoOverlay
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: public QObject
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, public QGstreamerSyncMessageFilter
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, public QGstreamerBusMessageFilter
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, private QGstreamerBufferProbe
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{
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Q_OBJECT
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Q_INTERFACES(QGstreamerSyncMessageFilter QGstreamerBusMessageFilter)
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public:
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explicit QGstreamerVideoOverlay(QObject *parent = 0, const QByteArray &elementName = QByteArray());
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virtual ~QGstreamerVideoOverlay();
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GstElement *videoSink() const;
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QSize nativeVideoSize() const;
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void setWindowHandle(WId id);
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void expose();
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void setRenderRectangle(const QRect &rect);
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bool isActive() const;
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Qt::AspectRatioMode aspectRatioMode() const;
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void setAspectRatioMode(Qt::AspectRatioMode mode);
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int brightness() const;
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void setBrightness(int brightness);
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int contrast() const;
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void setContrast(int contrast);
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int hue() const;
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void setHue(int hue);
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int saturation() const;
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void setSaturation(int saturation);
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bool processSyncMessage(const QGstreamerMessage &message);
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bool processBusMessage(const QGstreamerMessage &message);
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Q_SIGNALS:
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void nativeVideoSizeChanged();
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void activeChanged();
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void brightnessChanged(int brightness);
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void contrastChanged(int contrast);
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void hueChanged(int hue);
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void saturationChanged(int saturation);
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private:
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GstElement *findBestVideoSink() const;
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void setWindowHandle_helper(WId id);
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void updateIsActive();
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void probeCaps(GstCaps *caps);
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static void showPrerollFrameChanged(GObject *, GParamSpec *, QGstreamerVideoOverlay *);
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GstElement *m_videoSink;
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QSize m_nativeVideoSize;
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bool m_isActive;
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bool m_hasForceAspectRatio;
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bool m_hasBrightness;
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bool m_hasContrast;
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bool m_hasHue;
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bool m_hasSaturation;
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bool m_hasShowPrerollFrame;
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WId m_windowId;
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Qt::AspectRatioMode m_aspectRatioMode;
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int m_brightness;
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int m_contrast;
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int m_hue;
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int m_saturation;
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};
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QT_END_NAMESPACE
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#endif // QGSTREAMERVIDEOOVERLAY_P_H
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