dcpomatic/src/lib/subtitle_sync_packet_queue.cc, branch main DCP-o-matic DCP tools https://git.carlh.net/cgit/dcpomatic/atom?h=main 2026-04-23T14:49:48Z Fix late subtitles when they are muxed late with respect to the video. 2026-04-23T14:49:48Z Carl Hetherington cth@carlh.net 2026-04-18T11:39:33Z urn:sha1:9f828b327e680c322a70883910233337a37e481e In one example we have the sequence video 3088,377 sub 3087,334 sub 3088,710 video 3088,419 so the 3087,334 sub is very late. Here we insert a queue to bring subtitle packets a little forward for processing. There is already a similar thing in the player (_delay) but adding a longer delay there seems wasteful because a) the video is by that point already decompressed and b) this problem only applies to FFmpeg-decoded files (and then, I think only if we are previewing or burning in subtitles).