text: #ifndef VIEW_MDA_PIXEL_BITRATE_H
  #define VIEW_MDA_PIXEL_BITRATE_H
  
  namespace lmt::vqm
  {
  class FrameHistory;
  
  class PixelBitrate
  {
    public:
      explicit PixelBitrate(const FrameHistory& frameHistory) noexcept;
  
      double getBitratePerPixel() const noexcept;
      double getScaledBitratePerPixel(double spatialScaleFactor, double temporalScaleFactor) const noexcept;
  
    private:
      double bitratePerPixel_{0.0};
      double ps_{0.0};
      double pt_{0.0};
  };
  }  // namespace lmt::vqm
  
  #endif  // VIEW_MDA_PIXEL_BITRATE_H
  