qavfhelpers_p.h

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// Copyright (C) 2022 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 QAVFHELPERS_P_H
#define QAVFHELPERS_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/private/qsharedhandle_p.h>
#include <QtMultimedia/qvideoframe.h>
#include <QtMultimedia/qvideoframeformat.h>
 
#include <CoreMedia/CoreMedia.h>
#include <CoreVideo/CVBase.h>
#include <CoreVideo/CVPixelBuffer.h>
#include <CoreVideo/CVImageBuffer.h>
 
#include <chrono>
 
QT_BEGIN_NAMESPACE
 
using CvPixelFormat = unsigned;
constexpr CvPixelFormat CvPixelFormatInvalid = 0;
 
namespace QAVFHelpers
{
 
struct QSharedCVPixelBufferHandleTraits
{
    using Type = CVPixelBufferRef;
    static constexpr Type invalidValue() noexcept { return nullptr; }
    static Type ref(Type handle) noexcept
    {
        CVPixelBufferRetain(handle);
        return handle;
    }
    static bool unref(Type handle) noexcept
    {
        CVPixelBufferRelease(handle);
        return true;
    }
};
using QSharedCVPixelBuffer = QtPrivate::QSharedHandle<QSharedCVPixelBufferHandleTraits>;
 
Q_MULTIMEDIA_EXPORT QVideoFrameFormat::ColorRange colorRangeForCVPixelFormat(CvPixelFormat cvPixelFormat);
Q_MULTIMEDIA_EXPORT QVideoFrameFormat::PixelFormat fromCVPixelFormat(CvPixelFormat cvPixelFormat);
Q_MULTIMEDIA_EXPORT CvPixelFormat toCVPixelFormat(QVideoFrameFormat::PixelFormat pixFmt,
                              QVideoFrameFormat::ColorRange colorRange);
 
Q_MULTIMEDIA_EXPORT QVideoFrameFormat videoFormatForImageBuffer(CVImageBufferRef buffer, bool openGL = false);
 
[[nodiscard]] Q_MULTIMEDIA_EXPORT std::chrono::microseconds CMTimeToMicroseconds(const CMTime &);
 
};
 
QT_END_NAMESPACE
 
#endif // QAVFHELPERS_P_H