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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QABSTRACTVIDEOSURFACE_H
#define QABSTRACTVIDEOSURFACE_H
#include <QtCore/qobject.h>
#include <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
Q_PROPERTY(QSize nativeResolution READ nativeResolution NOTIFY nativeResolutionChanged)
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;
virtual bool isFormatSupported(const QVideoSurfaceFormat &format) const;
virtual QVideoSurfaceFormat nearestFormat(const QVideoSurfaceFormat &format) const;
QVideoSurfaceFormat surfaceFormat() const;
QSize nativeResolution() const;
virtual bool start(const QVideoSurfaceFormat &format);
virtual void stop();
bool isActive() const;
virtual bool present(const QVideoFrame &frame) = 0;
Error error() const;
Q_SIGNALS:
void activeChanged(bool active);
void surfaceFormatChanged(const QVideoSurfaceFormat &format);
void supportedFormatsChanged();
void nativeResolutionChanged(const QSize &);
protected:
void setError(Error error);
void setNativeResolution(const QSize &resolution);
private:
Q_DECLARE_PRIVATE(QAbstractVideoSurface)
QScopedPointer<QAbstractVideoSurfacePrivate> d_ptr;
};
#ifndef QT_NO_DEBUG_STREAM
Q_MULTIMEDIA_EXPORT QDebug operator<<(QDebug, const QAbstractVideoSurface::Error &);
#endif
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QAbstractVideoSurface*)
Q_DECLARE_METATYPE(QAbstractVideoSurface::Error)
QT_END_HEADER
#endif
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