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class Channel1: public mimodsp::plugin::IBrain
{
public:
    Channel1() = default;
    const char *Name() const override
    {
        return "Channel1";
    }
    bool open(const std::string &setup) override
    {
        handle = quadcamera_open();
        return true;
    }
    bool process(
        const mimodsp::plugin::VideoFrameRack &input,
        mimodsp::plugin::VideoFrameRack &output) override
    {
      if ((input.getChannels() >= 4) && (output.getChannels() >= 1)) {
        /*
         * Check the resolution of the all channels.
         */
        mimodsp::plugin::VideoFormat vf1 =
            input.getChannelVideoFrame(0).getVideoFormat();
        /*
         * Execute the GPU kernel.
         */
        quadcamera_execute_uyvy_to_uyvy(handle,
            vf1.getPictureWidth(),
            vf1.getPictureHeight(),
            input.getChannelVideoFrame(0).getBuffer(),
            input.getChannelVideoFrame(1).getBuffer(),
            input.getChannelVideoFrame(2).getBuffer(),
            input.getChannelVideoFrame(3).getBuffer(),
            output.getChannelVideoFrame(0).getBuffer());
      }
      return true;
    }
    bool close() override
    {
        quadcamera_close(handle);
        return true;
    }
private:
    QUADCAMERA *handle;
};