I suppose that begs the question how we define out of sync. I consider "in sync" to be each segment's (.m2ts) raw audio stream, concatenated together with duplicated frames at the tips overlapping, regardless of the video signal. This only holds if we assume that .m2ts files are in sync and that there aren't any duplicated video frames (I'm not sure how to verify the latter). In that case the total length is 1:47:12.635. DGDemux's TrueHD stream duration is 1:47:12.6367. Both are perfectly in sync up until the end of segment #1. By the third segment, DGDemux's output (top track) is 80 samples late - this is 8 seconds before the film ends:
By that definition, I'd say this is out of sync.
Sidenote: If I count the video frames of the movie, I get a total length of 1:47:12.6345: 154,229 * (24000 / 1001):
Code: Select all
$ ffmpeg -i "Moana.mkv" -map 0:v:0 -c copy -f null - 154,229
Oh and since I forgot to mention it before, I used DGDemux 184.108.40.206.