void emit_bitmap (dcpomatic::ContentTimePeriod period, std::shared_ptr<const Image> image, dcpomatic::Rect<double> rect);
void emit_bitmap (dcpomatic::ContentTimePeriod period, std::shared_ptr<const Image> image, dcpomatic::Rect<double> rect);
void emit_plain (dcpomatic::ContentTimePeriod period, sub::Subtitle const & subtitle);
void emit_stop (dcpomatic::ContentTime to);
void emit_plain (dcpomatic::ContentTimePeriod period, sub::Subtitle const & subtitle);
void emit_stop (dcpomatic::ContentTime to);
boost::signals2::signal<void (ContentBitmapText)> BitmapStart;
boost::signals2::signal<void (ContentStringText)> PlainStart;
boost::signals2::signal<void (dcpomatic::ContentTime)> Stop;
boost::signals2::signal<void (ContentBitmapText)> BitmapStart;
boost::signals2::signal<void (ContentStringText)> PlainStart;
boost::signals2::signal<void (dcpomatic::ContentTime)> Stop;