[RFC] sd_lavc: strictly letter-box DVD subtitles by default #14847
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Currently, using
--stretch-dvd-subs=yes
, and--stretch-dvd-subs=no
doesn't seem to make a difference.This PR changes the default behaviour (
--stretch-dvd-subs=no
) to using strict letter-boxing for DVD subtitles instead of stretching them.Strict letter-boxing is already the default for PGS subtitles since bcc3d72, so it seems to make sense for it to be the default for DVD subtitles as well.
The current behaviour can still be kept with
--stretch-dvd-subs=yes
.Fixes #14276.