- virtual void set_timeline_position (int64_t pos);
- virtual void set_header_timeline_position () = 0;
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- bool find (Glib::ustring& path, bool must_exist, bool& is_new, uint16_t& chan);
- bool removable() const;
- bool writable() const { return _flags & Writable; }
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- static Sample* get_interleave_buffer (nframes_t size);
-