- virtual int time_base_numerator () const = 0;
- virtual int time_base_denominator () const = 0;
- virtual int sample_aspect_ratio_numerator () const = 0;
- virtual int sample_aspect_ratio_denominator () const = 0;
-
- void set_progress (Job *) const;
-
- int video_frame () const {
- return _video_frame;
- }
-
- double last_content_time () const {
- return _last_content_time;