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fmviewer3/project/fm_viewer/fav/VideoOutput.h
2026-02-21 17:11:31 +09:00

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/******************************************************************************
QtAV: Multimedia framework based on Qt and FFmpeg
Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
* This file is part of QtAV (from 2014)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#ifndef QTAV_VIDEOOUTPUT_H
#define QTAV_VIDEOOUTPUT_H
#include <QtCore/QObject>
#include "VideoRenderer.h"
namespace FAV {
class VideoOutputPrivate;
/*!
* \brief The VideoOutput class
* A VideoRenderer wrapper with QObject features. If create VideoOutput without a given renderer id, QtAV will try to create a widget based renderer, and dynamically load QtAVWidgets module if it's not loaded.
*/
class Q_AV_EXPORT VideoOutput : public QObject, public VideoRenderer
{
DPTR_DECLARE_PRIVATE(VideoOutput)
Q_OBJECT
Q_PROPERTY(qreal brightness READ brightness WRITE setBrightness NOTIFY brightnessChanged)
Q_PROPERTY(qreal contrast READ contrast WRITE setContrast NOTIFY contrastChanged)
Q_PROPERTY(qreal hue READ hue WRITE setHue NOTIFY hueChanged)
Q_PROPERTY(qreal saturation READ saturation WRITE setSaturation NOTIFY saturationChanged)
Q_PROPERTY(QColor backgroundColor READ backgroundColor WRITE setBackgroundColor NOTIFY backgroundColorChanged)
Q_PROPERTY(QRectF regionOfInterest READ regionOfInterest WRITE setRegionOfInterest NOTIFY regionOfInterestChanged)
Q_PROPERTY(qreal sourceAspectRatio READ sourceAspectRatio NOTIFY sourceAspectRatioChanged)
Q_PROPERTY(qreal outAspectRatio READ outAspectRatio WRITE setOutAspectRatio NOTIFY outAspectRatioChanged)
//fillMode
// TODO: how to use enums in base class as property or Q_ENUM
Q_PROPERTY(OutAspectRatioMode outAspectRatioMode READ outAspectRatioMode WRITE setOutAspectRatioMode NOTIFY outAspectRatioModeChanged)
Q_ENUMS(OutAspectRatioMode)
Q_PROPERTY(int orientation READ orientation WRITE setOrientation NOTIFY orientationChanged)
Q_PROPERTY(QRect videoRect READ videoRect NOTIFY videoRectChanged)
Q_PROPERTY(QSize videoFrameSize READ videoFrameSize NOTIFY videoFrameSizeChanged)
Q_ENUMS(Quality)
public:
/*!
* \brief VideoOutput
* Create a QWidget based renderer. Result can be a QOpenGLWidget or QGLWidget based renderer if possible. Otherwise fallback to a software renderer
*/
VideoOutput(QObject *parent = 0);
/*!
* \brief VideoOutput
* Create a renderer with given rendererId. MUST check VideoOutput::isAvailable() later!
*/
VideoOutput(VideoRendererId rendererId, QObject *parent = 0);
~VideoOutput();
VideoRendererId id() const Q_DECL_OVERRIDE;
VideoFormat::PixelFormat preferredPixelFormat() const Q_DECL_OVERRIDE;
bool isSupported(VideoFormat::PixelFormat pixfmt) const Q_DECL_OVERRIDE;
QWindow* qwindow() Q_DECL_OVERRIDE Q_DECL_FINAL;
QWidget* widget() Q_DECL_OVERRIDE Q_DECL_FINAL;
QGraphicsItem* graphicsItem() Q_DECL_OVERRIDE Q_DECL_FINAL;
OpenGLVideo* opengl() const Q_DECL_OVERRIDE;
Q_SIGNALS:
void sourceAspectRatioChanged(qreal value) Q_DECL_OVERRIDE Q_DECL_FINAL;
void regionOfInterestChanged() Q_DECL_OVERRIDE;
void outAspectRatioChanged() Q_DECL_OVERRIDE;
void outAspectRatioModeChanged() Q_DECL_OVERRIDE;
void brightnessChanged(qreal value) Q_DECL_OVERRIDE;
void contrastChanged(qreal) Q_DECL_OVERRIDE;
void hueChanged(qreal) Q_DECL_OVERRIDE;
void saturationChanged(qreal) Q_DECL_OVERRIDE;
void backgroundColorChanged() Q_DECL_OVERRIDE;
void orientationChanged() Q_DECL_OVERRIDE;
void videoRectChanged() Q_DECL_OVERRIDE;
void videoFrameSizeChanged() Q_DECL_OVERRIDE;
protected:
bool eventFilter(QObject *obj, QEvent *event) Q_DECL_OVERRIDE;
bool receiveFrame(const VideoFrame& frame) Q_DECL_OVERRIDE;
void drawBackground() Q_DECL_OVERRIDE;
void drawFrame() Q_DECL_OVERRIDE;
void handlePaintEvent() Q_DECL_OVERRIDE;
private:
virtual bool onSetPreferredPixelFormat(VideoFormat::PixelFormat pixfmt) Q_DECL_OVERRIDE;
virtual bool onForcePreferredPixelFormat(bool force = true) Q_DECL_OVERRIDE;
virtual void onSetOutAspectRatioMode(OutAspectRatioMode mode) Q_DECL_OVERRIDE;
virtual void onSetOutAspectRatio(qreal ratio) Q_DECL_OVERRIDE;
virtual bool onSetQuality(Quality q) Q_DECL_OVERRIDE;
virtual bool onSetOrientation(int value) Q_DECL_OVERRIDE;
virtual void onResizeRenderer(int width, int height) Q_DECL_OVERRIDE;
virtual bool onSetRegionOfInterest(const QRectF& roi) Q_DECL_OVERRIDE;
virtual QPointF onMapToFrame(const QPointF& p) const Q_DECL_OVERRIDE;
virtual QPointF onMapFromFrame(const QPointF& p) const Q_DECL_OVERRIDE;
virtual bool onSetBrightness(qreal brightness) Q_DECL_OVERRIDE;
virtual bool onSetContrast(qreal contrast) Q_DECL_OVERRIDE;
virtual bool onSetHue(qreal hue) Q_DECL_OVERRIDE;
virtual bool onSetSaturation(qreal saturation) Q_DECL_OVERRIDE;
virtual void onSetBackgroundColor(const QColor& color) Q_DECL_OVERRIDE;
// from AVOutput
virtual void setStatistics(Statistics* statistics) Q_DECL_OVERRIDE; //called by friend AVPlayer
virtual bool onInstallFilter(Filter *filter, int index) Q_DECL_OVERRIDE;
virtual bool onUninstallFilter(Filter *filter) Q_DECL_OVERRIDE;
virtual bool onHanlePendingTasks() Q_DECL_OVERRIDE;
};
} //namespace FAV
#endif // QTAV_VIDEOOUTPUT_H