std::list<ContentTimePeriod> image_subtitles_during (ContentTimePeriod, bool starting) const;
std::list<ContentTimePeriod> text_subtitles_during (ContentTimePeriod, bool starting) const;
std::list<ContentTimePeriod> image_subtitles_during (ContentTimePeriod, bool starting) const;
std::list<ContentTimePeriod> text_subtitles_during (ContentTimePeriod, bool starting) const;
/** Time of next thing to return from pass relative to the start of _reel */
ContentTime _next;
std::list<boost::shared_ptr<dcp::Reel> > _reels;
/** Time of next thing to return from pass relative to the start of _reel */
ContentTime _next;
std::list<boost::shared_ptr<dcp::Reel> > _reels;