YiVideoSurfaceView.h

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// © You i Labs Inc. 2000-2020. All rights reserved.
#ifndef _YI_VIDEO_SURFACE_VIEW_H_
#define _YI_VIDEO_SURFACE_VIEW_H_

#include "utility/YiColor.h"
#include "utility/YiTime.h"
#include "view/YiSceneView.h"

class CYIAssetTexture;
class CYIClosedCaptionsSceneNode;
class CYIPerspectiveCameraSceneNode;
class CYISceneNode;
class CYIVideoSurface;
class CYIVideoSurfaceTexture;

class CYIVideoSurfaceView : public CYISceneView, public CYITime::UpdateListener
{
public:
    enum class FitMode
    {
        MaintainAspectRatio 
    };

    CYIVideoSurfaceView();
    ~CYIVideoSurfaceView();

    virtual bool Init() override;

    void SetVideoSurface(CYIVideoSurface *pVideoSurface);

    void ResizePlatformSurface();

protected:
    static bool ApplyVideoToNode(CYISceneNode *pVideoNode, CYIVideoSurfaceTexture *pVideoSurface);

    float GetViewWorldAspectRatio() const;

    float GetVideoAspectRatio() const;

    virtual bool OnFrameTimeUpdated(std::chrono::microseconds frameTime) override;

private:
    void SurfaceSizeChanged(const glm::ivec2 &surfaceSize);

    void LetterboxVideo(float videoAspectRatio, float viewAspectRatio);

    CYIVideoSurface *m_pVideoSurface;
    CYIClosedCaptionsSceneNode *m_pClosedCaptionsNode;
    CYISceneNode *m_pVideoNode;
    bool m_renderingToTexture;

    FitMode m_fitMode;

    YI_TYPE_BASES(CYIVideoSurfaceView, CYISceneView)
};

#endif // _YI_VIDEO_SURFACE_VIEW_H_