QtMultimediaReceiver.h

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#pragma once
 
#include <QtCore/QMetaObject>
#include <QtCore/QString>
#include <QtCore/QTimer>
 
#include "VideoReceiver.h"
 
class QMediaPlayer;
class QVideoSink;
class QMediaCaptureSession;
class QMediaRecorder;
class QRhi;
class QQuickItem;
class QQuickVideoOutput;
 
class QtMultimediaReceiver : public VideoReceiver
{
    Q_OBJECT
 
public:
    explicit QtMultimediaReceiver(QObject *parent = nullptr);
    virtual ~QtMultimediaReceiver();
 
    static void *createVideoSink(QQuickItem *widget, QObject *parent = nullptr);
    static void releaseVideoSink(void *sink);
    static VideoReceiver *createVideoReceiver(QObject *parent);
 
public slots:
    void start(uint32_t timeout) override;
    void stop() override;
    void startDecoding(void *sink) override;
    void stopDecoding() override;
    void startRecording(const QString &videoFile, VideoReceiver::FILE_FORMAT format) override;
    void stopRecording() override;
    void takeScreenshot(const QString &imageFile) override;
 
protected:
    QTimer _frameTimer;
    QMediaPlayer *_mediaPlayer = nullptr;
    QVideoSink *_videoSink = nullptr;
    QMediaCaptureSession *_captureSession = nullptr;
    QMediaRecorder *_mediaRecorder = nullptr;
    QMetaObject::Connection _videoSizeUpdater;
    QMetaObject::Connection _videoFrameUpdater;
    QRhi *_rhi = nullptr;
    const QIODevice *_streamDevice;
    QQuickVideoOutput *_videoOutput = nullptr;
};