[FFmpeg-devel] [PATCH] Add SUP (raw BluRay PGS subtitle) muxer

wm4 nfxjfg at googlemail.com
Fri Aug 29 23:51:25 CEST 2014

On Sat, 30 Aug 2014 00:44:21 +0300
Petri Hintukainen <phintuka at gmail.com> wrote:

> On pe, 2014-08-29 at 15:02 +0000, Carl Eugen Hoyos wrote:
> > Petri Hintukainen <phintuka <at> gmail.com> writes:
> > 
> > > From: Petri Hintukainen <phintuka <at> users.sourceforge.net>
> > > 
> > > Fixes ticket #2208
> > 
> > Do I understand correctly that the produced files are 
> > compatible with eac3to?
> Compatible, but not identical. eac3to sets all DTS fields to 0. Other
> than that, files are identical.
> Also tsMuxeR produces .sup files, and those are identical with the files
> this muxer produces (i.e. with proper DTS).
> >  Are there other programs that accept these files?
> mkvmerge. I extracted subtitles and video from BluRay using ffmpeg. Then
> I muxed those (.sup and .h264) files with mkvmerge. Both VLC and xine
> played subtitles from resulting .mkv files.
> I don't know if any player accepts .sup files directly. There's no index
> or any patterns that can be used for synchronizing when seeking. I think
> these files are usually used as an input for other subtitle
> converters/tools (like OCR -> srt).

I think mpc-hc does.

For seeking, the generic avformat seeking code could probably be
used (which also takes care of creating an index). But I'm not sure.

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