qmultimediautils_p.h

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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QMULTIMEDIAUTILS_P_H
#define QMULTIMEDIAUTILS_P_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <QtMultimedia/qtmultimediaglobal.h>
#include <QtMultimedia/qtvideo.h>
#include <QtMultimedia/private/qmaybe_p.h>
#include <QtCore/qsize.h>
#include <QtCore/qurl.h>
#include <QtGui/rhi/qrhi.h>
 
QT_BEGIN_NAMESPACE
 
class QRhiSwapChain;
class QVideoFrame;
class QVideoFrameFormat;
 
struct Fraction {
    int numerator;
    int denominator;
};
 
Q_MULTIMEDIA_EXPORT Fraction qRealToFraction(qreal value);
 
Q_MULTIMEDIA_EXPORT QSize qCalculateFrameSize(QSize resolution, Fraction pixelAspectRatio);
 
// TODO: after adding pixel aspect ratio to QVideoFrameFormat, the function should
// consider PAR as well as rotation
Q_MULTIMEDIA_EXPORT QSize qRotatedFrameSize(QSize size, int rotation);
 
inline QSize qRotatedFrameSize(QSize size, QtVideo::Rotation rotation)
{
    return qRotatedFrameSize(size, qToUnderlying(rotation));
}
 
Q_MULTIMEDIA_EXPORT QSize qRotatedFrameSize(const QVideoFrame &frame);
 
Q_MULTIMEDIA_EXPORT QUrl qMediaFromUserInput(QUrl fileName);
 
Q_MULTIMEDIA_EXPORT bool qIsAutoHdrEnabled();
 
Q_MULTIMEDIA_EXPORT QRhiSwapChain::Format
qGetRequiredSwapChainFormat(const QVideoFrameFormat &format);
 
Q_MULTIMEDIA_EXPORT bool
qShouldUpdateSwapChainFormat(QRhiSwapChain *swapChain,
                             QRhiSwapChain::Format requiredSwapChainFormat);
 
QT_END_NAMESPACE
 
#endif // QMULTIMEDIAUTILS_P_H