int internal_playback_seek (nframes_t distance);
int can_internal_playback_seek (nframes_t distance);
int rename_write_sources ();
+ std::list<boost::shared_ptr<Source> > steal_write_sources();
void reset_write_sources (bool, bool force = false);
void non_realtime_input_change ();
void non_realtime_locate (nframes_t location);