- list<DCPTimePeriod> p;
- scoped_ptr<DCPDecoder> decoder;
- try {
- decoder.reset (new DCPDecoder (shared_from_this(), film()->log()));
- } catch (...) {
- /* Could not load the DCP; guess reels */
- list<DCPTimePeriod> p;
- p.push_back (DCPTimePeriod (position(), end()));
- return p;
+ list<int64_t> reel_lengths = _reel_lengths;
+ if (reel_lengths.empty ()) {
+ /* Old metadata with no reel lengths; get them here instead */
+ try {
+ scoped_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this()));
+ reel_lengths = examiner->reel_lengths ();
+ } catch (...) {
+ /* Could not examine the DCP; guess reels */
+ reel_lengths.push_back (length_after_trim().frames_round (film()->video_frame_rate ()));
+ }