+ boost::optional<float> sample_aspect_ratio () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _sample_aspect_ratio;
+ }
+
+ Frame fade_in () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _fade_in;
+ }
+
+ Frame fade_out () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _fade_out;
+ }
+
+ dcp::Size video_size_after_3d_split () const;
+ dcp::Size video_size_after_crop () const;