+ void set_trim_start (Time);
+
+ Time trim_start () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _trim_start;
+ }
+
+ void set_trim_end (Time);
+
+ Time trim_end () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _trim_end;
+ }
+