- shared_ptr<const Film> film = _film.lock ();
- DCPOMATIC_ASSERT (film);
- FrameRateChange const frc (active_video_frame_rate(), film->video_frame_rate());
- return DCPTime::from_frames (llrint (video->length_after_3d_combine() * frc.factor ()), film->video_frame_rate ());
+ FrameRateChange const frc (film, shared_from_this());
+ return DCPTime::from_frames (llrint(video->length_after_3d_combine() * frc.factor()), film->video_frame_rate());