[FFmpeg-user] dvdsub-in-mp4 mystery solved

[Mark Filipak]

There is a documentation error -- https://trac.ffmpeg.org/ticket/11678
has been submitted.

dvdsubs can be muxed into mp4, and even 5 year-old players can play the
mp4 and show the subtitles. I suspected this was true because mp4 is
MPEG, but I'd read that the bit-mapped subs have to be burned in. That's
not true.

Invoke the dvd_subtitle codec via this (corrected) option:
-c:s dvd_subtitle

--Mark.