[FFmpeg-devel] [PATCH] Bluray Subtitle Support, v7 (Updated patch to v12)

Carl Eugen Hoyos cehoyos
Wed Aug 26 14:50:32 CEST 2009

Reimar D?ffinger <Reimar.Doeffinger <at> gmx.de> writes:

> > but it works: And the timing
> > is correct, which visibly is not for the original file
> What do you mean?

I believe Stephen Backway explained that Bluray subtitles are always shown too
late - I can reproduce this with sample-dts-not-valid-dca-frame.m2ts, but not
with the re-encoded file (that has correct timing).

> Btw. what really confuses me is that ffplay -sst 5

Thank you - I always used "t".


> > The resulting file can be encoded again successfully to dvdsub - why doesn't
> > this work directly?
> It works directly for me (svn up, I applied the encoded buffer size fix),
> with this command line:
> ffmpeg -i sample-dts-not-valid-dca-frame.m2ts -ac 2 -scodec dvdsub test.mkv

I did not test mkv, but it fails with the original file and mpeg, but succeeds
from avi to mpeg (which makes me think "start only so far in" is not the issue).

> Colours are "interesting" as always though.
> mpeg is a bit of an issue, because the subtitles start only so far in I
> guess, so ffplay doesn't know it is there or something and I don't know
> which -sst to specify (maybe I should just play it with mplayer :-P).

I had not much success with MPlayer with any files (except dvd/dvdnav) when
searching for samples yesterday.

Carl Eugen

More information about the ffmpeg-devel mailing list