[FFmpeg-user] How to extract DVD subtitle from this VOB file?

[Moritz Barsnick]

On Thu, Mar 15, 2018 at 14:42:32 +0100, Adi Marvillo wrote:
> > Input #0, mpeg, from 'stream.dump':
> >   Duration: 01:16:44.93, start: 0.040033, bitrate: 5392 kb/s
> >     Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
> > first), 720x480 [SAR 32:27 DAR 16:9], 29.67 fps, 59.94 tbr, 90k tbn,
> > 59.94 tbc
> >     Stream #0:1[0x80]: Audio: ac3, ....
> > It is odd that mediainfo can't report anything about this file, even
> > after changing its suffix to mpeg or vob.
> >
> > When I play it with MPV/SMplayer I can disable or select one from two
> > available subtitles.

> This is your command:
> *ffmpeg -i ./dump.stream -g 25 -keyint_min 3 -vf -aspect "16:9" -map v
> -c:v libx264 -map a -c:a copy ./output.mkv
> *ffprobe doesn't show a subtitle stream, don't know where it is... as
> much as I know subtitles are streams as well. Let us know when you find
> out.CU

AFAIU, MPEG-PS can contain streams which appear later. (Same for
MPEG-TS, I think.) Perhaps the subtitle streams aren't visible at t=0.

The ffmpeg command given by Adi should report appearing streams while
parsing.

Moritz