boost::shared_ptr<Image> convert_pixel_format (dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool aligned, bool fast) const;
boost::shared_ptr<Image> scale (dcp::Size out_size, dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool aligned, bool fast) const;
boost::shared_ptr<Image> crop_scale_window (
boost::shared_ptr<Image> convert_pixel_format (dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool aligned, bool fast) const;
boost::shared_ptr<Image> scale (dcp::Size out_size, dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool aligned, bool fast) const;
boost::shared_ptr<Image> crop_scale_window (