* @param duration the duration the new item should be placed upon the timeline
* @param src the identity of the object that initiated the change
*/
- MarkerView* add_marker_view(ImageFrameView* ifv, std::string mark_type, std::string mark_id, jack_nframes_t start, jack_nframes_t dur, void* src) ;
+ MarkerView* add_marker_view(ImageFrameView* ifv, std::string mark_type, std::string mark_id, nframes_t start, nframes_t dur, void* src) ;
/**
* Returns the named MarkerView or 0 if the named marker does not exist