Ylc C++ lib. Software controller for Yamano CCTV lenses

class Ylc : public Lens
{
public:

    /// Get class version.
    static std::string getVersion();

    /// Open serial port.
    bool openLens(std::string initString) override;

    /// Init lens controller.
    bool initLens(LensParams& params) override;

    /// Close serial port and stop communication thread.
    void closeLens() override;

    /// Get controller initialization status.
    bool isLensOpen() override;

    /// Get connection status.
    bool isLensConnected() override;

    /// Set the lens controller parameter.
    bool setParam(LensParam id, float value) override;

    /// Get the lens controller param.
    float getParam(LensParam id) override;
    
    /// Get the lens controller params.
    void getParams(LensParams& params) override;

    /// Execute command.
    bool executeCommand(LensCommand id, float arg = 0) override;

    /// Add video frame for auto focus purposes.
    void addVideoFrame(cr::video::Frame& frame) override;

    /// Decode and execute command.
    bool decodeAndExecuteCommand(uint8_t* data, int size) override;
};

#include <chrono>
#include <iostream>
#include <string>
#include <thread>
#include "Ylc.h"

int main(void)
{
    // Init lens controller.
    cr::lens::Lens* lc = new cr::lens::Ylc();
    if (!lc->openLens("/dev/ttyUSB0"))
        return -1;

    // Get lens Zoom position
    std:: cout<< "Zoom pos: " <<
    lc->getParam(cr::lens::LensParam::ZOOM_POS) << std::endl;

    // Go to zoom position 65535 (Full tele).
    lc->executeCommand(cr::lens::LensCommand::ZOOM_TO_POS, 65535);

    // Show zoom movement (changing position).
    for (int i = 0; i < 50; ++i)
    {   
        std:: cout<< "Zoom pos: " <<
        lc->getParam(cr::lens::LensParam::ZOOM_POS) << std::endl;
        std::this_thread::sleep_for(std::chrono::milliseconds(100)); 
    }
    return 1;
}