+ friend struct ffmpeg_pts_offset_test;
+ friend struct best_dcp_frame_rate_test_single;
+ friend struct best_dcp_frame_rate_test_double;
+ friend struct audio_sampling_rate_test;
+ friend struct subtitle_font_id_change_test2;
+ template<class, class> friend class ChangeSignaller;
+
+ void signal_change (ChangeType, int);
+
+ /** Paths of our data files */
+ std::vector<boost::filesystem::path> _paths;
+ std::vector<std::time_t> _last_write_times;
+