extern bool mxf_atmos_files_same (boost::filesystem::path ref, boost::filesystem::path check, bool verbose = false);
extern void check_xml(boost::filesystem::path, boost::filesystem::path, std::list<Glib::ustring>);
extern void check_ffmpeg (boost::filesystem::path, boost::filesystem::path, int audio_tolerance);
-extern void check_image (boost::filesystem::path, boost::filesystem::path, double threshold = 4);
+extern void check_image(boost::filesystem::path ref, boost::filesystem::path check, double threshold = 4);
extern boost::filesystem::path test_film_dir (std::string);
extern void write_image (std::shared_ptr<const Image> image, boost::filesystem::path file);
boost::filesystem::path dcp_file (std::shared_ptr<const Film> film, std::string prefix);