+ void set_video_frame_rate (int r) {
+ boost::mutex::scoped_lock lm (_mutex);
+ _video_frame_rate = r;
+ }
+
+ void set_length (dcpomatic::DCPTime len) {
+ boost::mutex::scoped_lock lm (_mutex);
+ _length = len;
+ }
+
+ void set_eyes (Eyes eyes) {
+ boost::mutex::scoped_lock lm (_mutex);
+ _eyes = eyes;
+ }
+
+ void set_three_d (bool t) {