QmlVlcVideoSurface.h

/*******************************************************************************
* Copyright © 2014-2015, Sergey Radionov <rsatom_gmail.com>
* All rights reserved.
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#pragma once

#include <QQuickItem>
#include <QPointer>

#include "QmlVlcVideoSource.h"

struct QmlVlcI420Frame;//#include "QmlVlcVideoFrame.h"

class QmlVlcVideoSurface
    : public QQuickItem
{
    Q_OBJECT

    Q_PROPERTY( FillMode fillMode READ fillMode WRITE setFillMode NOTIFY fillModeChanged )
    Q_PROPERTY( QmlVlcVideoSource* source READ source WRITE setSource NOTIFY sourceChanged )

public:
    QmlVlcVideoSurface();
    ~QmlVlcVideoSurface();

    enum FillMode {
        Stretch            = Qt::IgnoreAspectRatio,
        PreserveAspectFit  = Qt::KeepAspectRatio,
        PreserveAspectCrop = Qt::KeepAspectRatioByExpanding
    };
    Q_ENUMS( FillMode )

    FillMode fillMode() const
        { return m_fillMode; }
    void setFillMode( FillMode mode );

    QmlVlcVideoSource* source() const;
    void setSource( QmlVlcVideoSource* source );

    virtual QSGNode* updatePaintNode( QSGNode*, UpdatePaintNodeData* );

public Q_SLOTS:
    void presentFrame( const std::shared_ptr<const QmlVlcI420Frame>& frame );

Q_SIGNALS:
    void sourceChanged();
    void fillModeChanged( FillMode mode );

private:
    FillMode m_fillMode;

    QPointer<QmlVlcVideoSource> m_source;

    bool m_frameUpdated;
    std::shared_ptr<const QmlVlcI420Frame> m_frame;
};