private:
dcpomatic::ContentTimePeriod content_time_period (std::shared_ptr<const dcp::Subtitle> s) const;
+ void update_position();
std::vector<std::shared_ptr<const dcp::Subtitle>> _subtitles;
std::vector<std::shared_ptr<const dcp::Subtitle>>::const_iterator _next;
+
+ dcp::Standard _standard;
};