mp4subtitle(1) on Linux
The text 6e7149c0c7fd, as Debian 9 (Stretch) shipped it.
manual page for mp4subtitle - MP4v2 -r
Flags it lists
-
--debug -
--dryrun -
--export -
--force -
--help -
--import -
--keepgoing -
--list -
--optimize -
--overwrite -
--quiet -
--remove -
--verbose -
--version -
-d -
-f -
-h -
-k -
-o -
-q -
-v -
-y -
-z