+ boost::optional<ContentTime> _pending_subtitle_from;
+ boost::shared_ptr<Image> _pending_subtitle_image;
+ boost::optional<dcpomatic::Rect<double> > _pending_subtitle_rect;
+
+ std::list<ContentTimePeriod> image_subtitles_during (ContentTimePeriod, bool starting) const;
+ std::list<ContentTimePeriod> text_subtitles_during (ContentTimePeriod, bool starting) const;