avfcamerarenderer_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 AVFCAMERARENDERER_H

#define AVFCAMERARENDERER_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 <QtMultimedia/private/qvideooutputorientationhandler_p.h>

#include <QtCore/qmutex.h>

#include <QtCore/qobject.h>

#include <avfvideosink_p.h>

#include <CoreVideo/CVBase.h>

#include <CoreVideo/CVPixelBuffer.h>

#include <CoreVideo/CVImageBuffer.h>

#ifdef Q_OS_IOS

#include <CoreVideo/CVOpenGLESTexture.h>

#include <CoreVideo/CVOpenGLESTextureCache.h>

#endif

#import <dispatch/dispatch.h>

#import <AVFoundation/AVFoundation.h>

@class AVFCaptureFramesDelegate;

QT_BEGIN_NAMESPACE

class AVFCameraSession;

class AVFCameraService;

class AVFCameraRenderer;

class AVFVideoSink;

class AVFCameraRenderer : public QObject, public AVFVideoSinkInterface

Q_OBJECT

public:

    AVFCameraRenderer(QObject *parent = nullptr);

    ~AVFCameraRenderer() override;

    void reconfigure() override;

    void setOutputSettings() override;

    void configureAVCaptureSession(AVFCameraSession *cameraSession);

    void syncHandleViewfinderFrame(const QVideoFrame &frame);

    AVCaptureVideoDataOutput *videoDataOutput() const;

    AVFCaptureFramesDelegate *captureDelegate() const;

    void resetCaptureDelegate() const;

    void setPixelFormat(QVideoFrameFormat::PixelFormat pixelFormat,

                        QVideoFrameFormat::ColorRange colorRange);

Q_SIGNALS:

    void newViewfinderFrame(const QVideoFrame &frame);

private Q_SLOTS:

    void handleViewfinderFrame();

    void updateCaptureConnection();

public Q_SLOTS:

    void deviceOrientationChanged(int angle = -1);

private:

    AVFCaptureFramesDelegate *m_viewfinderFramesDelegate = nullptr;

    AVFCameraSession *m_cameraSession = nullptr;

    AVCaptureVideoDataOutput *m_videoDataOutput = nullptr;

    bool m_needsHorizontalMirroring = false;

    QVideoFrame m_lastViewfinderFrame;

    QMutex m_vfMutex;

    dispatch_queue_t m_delegateQueue;

    QVideoOutputOrientationHandler m_orientationHandler;

    friend class CVImageVideoBuffer;

};

QT_END_NAMESPACE

#endif