void fill_audio (DCPTimePeriod period);
void audio_flush (boost::shared_ptr<Piece>, AudioStreamPtr stream);
void audio_transform (boost::shared_ptr<AudioContent> content, AudioStreamPtr stream, ContentAudio content_audio, DCPTime time);
+ std::pair<boost::shared_ptr<AudioBuffers>, DCPTime> discard_audio (boost::shared_ptr<const AudioBuffers> audio, DCPTime time, DCPTime discard_to) const;
boost::shared_ptr<const Film> _film;
boost::shared_ptr<const Playlist> _playlist;