/****************************************************************************

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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** This file is part of the QtMultimedia module of the Qt Toolkit.

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****************************************************************************/

#ifndef QABSTRACTVIDEOSURFACE_H

#define QABSTRACTVIDEOSURFACE_H

#include <QtCore/qobject.h>

#include <QtMultimedia/qvideoframe.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Multimedia)

class QRectF;

class QVideoSurfaceFormat;

class QAbstractVideoSurfacePrivate;

class Q_MULTIMEDIA_EXPORT QAbstractVideoSurface : public QObject

{

    Q_OBJECT

public:

    enum Error

    {

        NoError,

        UnsupportedFormatError,

        IncorrectFormatError,

        StoppedError,

        ResourceError

    };

    explicit QAbstractVideoSurface(QObject *parent = 0);

    ~QAbstractVideoSurface();

    virtual QList<QVideoFrame::PixelFormat> supportedPixelFormats(

            QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const = 0;

    QVideoSurfaceFormat surfaceFormat() const;

    virtual bool start(const QVideoSurfaceFormat &format);

    virtual void stop();

    virtual bool present(const QVideoFrame &frame) = 0;

    Error error() const;

Q_SIGNALS:

    void surfaceFormatChanged(const QVideoSurfaceFormat &format);

    void supportedFormatsChanged();

protected:

    QAbstractVideoSurface(QAbstractVideoSurfacePrivate &dd, QObject *parent);

    void setError(Error error);

private:

    Q_DECLARE_PRIVATE(QAbstractVideoSurface)

};

QT_END_NAMESPACE

QT_END_HEADER

#endif