void hint (std::string h);
void audio (std::shared_ptr<AudioBuffers> audio, dcpomatic::DCPTime time);
void text (PlayerText text, TextType type, boost::optional<DCPTextTrack> track, dcpomatic::DCPTimePeriod period);
void closed_caption (PlayerText text, dcpomatic::DCPTimePeriod period);
void open_subtitle (PlayerText text, dcpomatic::DCPTimePeriod period);
void hint (std::string h);
void audio (std::shared_ptr<AudioBuffers> audio, dcpomatic::DCPTime time);
void text (PlayerText text, TextType type, boost::optional<DCPTextTrack> track, dcpomatic::DCPTimePeriod period);
void closed_caption (PlayerText text, dcpomatic::DCPTimePeriod period);
void open_subtitle (PlayerText text, dcpomatic::DCPTimePeriod period);