void write (boost::filesystem::path path) const;
void resolve_fonts (std::list<boost::shared_ptr<Asset> > assets);
void add_font_assets (std::list<boost::shared_ptr<Asset> >& assets);
+ void set_font_file (std::string load_id, boost::filesystem::path file);
/** Set the reel number or sub-element identifier
* of these subtitles.