+ /* Work out a FrameRateChange for the best overlap video for this content, in case we need it below */
+ DCPTime best_overlap_t;
+ shared_ptr<VideoContent> best_overlap;
+ for (ContentList::iterator j = content.begin(); j != content.end(); ++j) {
+ shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*j);
+ if (!vc) {
+ continue;
+ }
+
+ DCPTime const overlap = max (vc->position(), (*i)->position()) - min (vc->end(), (*i)->end());
+ if (overlap > best_overlap_t) {
+ best_overlap = vc;
+ best_overlap_t = overlap;
+ }
+ }
+
+ optional<FrameRateChange> best_overlap_frc;
+ if (best_overlap) {
+ best_overlap_frc = FrameRateChange (best_overlap->video_frame_rate(), _film->video_frame_rate ());
+ } else {
+ /* No video overlap; e.g. if the DCP is just audio */
+ best_overlap_frc = FrameRateChange (_film->video_frame_rate(), _film->video_frame_rate ());
+ }
+
+ /* FFmpeg */