avfvideobuffer_p.h

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// Copyright (C) 2016 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 AVFVIDEOBUFFER_H
#define AVFVIDEOBUFFER_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/qvideoframe.h>
#include <private/qabstractvideobuffer_p.h>
#include <private/qcore_mac_p.h>
 
#include <QtCore/qobject.h>
#include <QtCore/qmutex.h>
#include <avfvideosink_p.h>
 
#include <CoreVideo/CVImageBuffer.h>
 
#import "Metal/Metal.h"
#import "MetalKit/MetalKit.h"
 
QT_BEGIN_NAMESPACE
 
struct AVFMetalTexture;
class AVFVideoBuffer : public QAbstractVideoBuffer
{
public:
    AVFVideoBuffer(AVFVideoSinkInterface *sink, CVImageBufferRef buffer);
    ~AVFVideoBuffer();
 
    QVideoFrame::MapMode mapMode() const { return m_mode; }
    MapData map(QVideoFrame::MapMode mode);
    void unmap();
 
    virtual quint64 textureHandle(QRhi *, int plane) const;
 
    QVideoFrameFormat videoFormat() const { return m_format; }
 
private:
    AVFVideoSinkInterface *sink = nullptr;
 
    mutable CVMetalTextureRef cvMetalTexture[3] = {};
    mutable QCFType<CVMetalTextureCacheRef> metalCache;
#if defined(Q_OS_MACOS)
    mutable CVOpenGLTextureRef cvOpenGLTexture = nullptr;
#elif defined(Q_OS_IOS)
    mutable CVOpenGLESTextureRef cvOpenGLESTexture = nullptr;
#endif
 
    CVImageBufferRef m_buffer = nullptr;
    QVideoFrame::MapMode m_mode = QVideoFrame::NotMapped;
    QVideoFrameFormat m_format;
};
 
QT_END_NAMESPACE
 
#endif