std::list<std::pair<boost::shared_ptr<AudioBuffers>, DCPTime> > pull (DCPTime time);
void push (boost::shared_ptr<const AudioBuffers> audio, DCPTime time);
std::list<std::pair<boost::shared_ptr<AudioBuffers>, DCPTime> > pull (DCPTime time);
void push (boost::shared_ptr<const AudioBuffers> audio, DCPTime time);