videoplayer.h - mozsearch

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// Copyright (C) 2018 Klaralvdalens Datakonsult AB (KDAB).

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#include <QtGui/QOpenGLFunctions>

#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)

#include <QtOpenGLWidgets/QOpenGLWidget>

#else

#include <QtWidgets/QOpenGLWidget>

#endif

#include <QOpenGLVertexArrayObject>

#include <QOpenGLBuffer>

#include <QOpenGLTexture>

#include <QOpenGLShaderProgram>

#include <QtMultimedia/QAbstractVideoSurface>

#include <QtMultimedia/QMediaPlayer>

#include <memory>

class TextureWidget : public QOpenGLWidget, private QOpenGLFunctions

    Q_OBJECT

    Q_PROPERTY(int textureId READ textureId NOTIFY textureIdChanged)

public:

    TextureWidget(QWidget *parent = nullptr);

    int textureId() { return m_texture.textureId(); }

private:

    // MainThread

    void initializeGL() override;

    // Main thread

    void paintGL() override;

public Q_SLOTS:

    // Called from Video player thread

    void setVideoFrame(const QVideoFrame &frame);

Q_SIGNALS:

    void textureIdChanged(int textureId);

private:

    QOpenGLVertexArrayObject m_vao;

    QOpenGLShaderProgram m_shader;

    QOpenGLTexture m_texture;

};

class GLVideoSurface : public QAbstractVideoSurface

    Q_OBJECT

public:

    QList<QVideoFrame::PixelFormat> supportedPixelFormats(QAbstractVideoBuffer::HandleType type) const override;

    // Call in VideaPlayerThread context

    bool present(const QVideoFrame &frame) override;

Q_SIGNALS:

    void onNewFrame(const QVideoFrame &frame);

};

class VideoPlayer : public QObject

    Q_OBJECT

public:

    VideoPlayer(TextureWidget *textureWidget);

    ~VideoPlayer();

private:

    TextureWidget *m_textureWidget;

    std::unique_ptr<QMediaPlayer> m_player;

    std::unique_ptr<GLVideoSurface> m_surface;

};