+ PBD::Signal2<void, ARDOUR::framecnt_t, ARDOUR::framecnt_t> AuditionProgress;
+
+ /* Track */
+ int roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& need_butler);
+ DataType data_type () const;
+
+ int roll_audio (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& need_butler);
+ int roll_midi (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& need_butler);
+
+ boost::shared_ptr<Diskstream> create_diskstream ();
+ void set_diskstream (boost::shared_ptr<Diskstream> ds);
+
+ /* fake track */
+ void set_state_part_two () {}
+ int set_state (const XMLNode&, int) { return 0; }
+ bool bounceable (boost::shared_ptr<Processor>, bool) const { return false; }
+ void freeze_me (InterThreadInfo&) {}
+ void unfreeze () {}
+
+ boost::shared_ptr<Region> bounce (InterThreadInfo&)
+ { return boost::shared_ptr<Region> (); }
+
+ boost::shared_ptr<Region> bounce_range (framepos_t, framepos_t, InterThreadInfo&, boost::shared_ptr<Processor>, bool)
+ { return boost::shared_ptr<Region> (); }
+
+ int export_stuff (BufferSet&, framepos_t, framecnt_t, boost::shared_ptr<Processor>, bool, bool)
+ { return -1; }
+
+ boost::shared_ptr<Diskstream> diskstream_factory (XMLNode const &)
+ { return boost::shared_ptr<Diskstream> (); }
+
+ boost::shared_ptr<AudioDiskstream> audio_diskstream() const
+ { return boost::dynamic_pointer_cast<AudioDiskstream> (_diskstream); }
+
+ boost::shared_ptr<MidiDiskstream> midi_diskstream() const
+ { return boost::dynamic_pointer_cast<MidiDiskstream> (_diskstream); }
+