[FFmpeg-user] MKV to MP4 subtitle issue

[pehache]

Le 16/01/2023 à 11:47, Moritz Barsnick a écrit :
> 
> MP4 cannot carry those HDMV PGS subtitles (or any other bitmap based
> format, if I remember correctly).

MP4 can carry the DVDSUB format, which is bitmap.

The OP can give a try transcoding the PGS subtitles to DVDSUB, using 
"-c:s dvdsub", but in my (limited) experience it often fails for some 
reason or another.