NAME

       mp4subtitle - manual page for mp4subtitle - MP4v2 2.0.0

SYNOPSIS

       mp4subtitle [OPTION]... ACTION file...

DESCRIPTION

       For  each  mp4  file specified, perform the specified ACTION. An action must be specified.
       Some options are not applicable to some actions.

       ACTIONS

       --list list available subtitles

       --export TXT
              export subtitles to TXT

       --import TXT
              import subtitles from TXT

       --remove
              remove all subtitles

       OPTIONS

       -z, --optimize
              optimize mp4 file after modification

       -y, --dryrun
              do not actually create or modify any files

       -k, --keepgoing
              continue batch processing even after errors

       -o, --overwrite
              overwrite existing files when creating

       -f, --force
              force overwrite even if file is read-only

       -q, --quiet
              equivalent to --verbose 0

       -d, --debug NUM
              increase debug or long-option to set NUM

       -v, --verbose NUM
              increase verbosity or long-option to set NUM

       -h, --help
              print brief help or long-option for extended help

       --version
              print version information and exit

       DEBUG LEVELS (for raw mp4 file I/O)

       0      supressed

       1      add warnings and errors (default)

       2      add table details

       3      add implicits

       4      everything

       VERBOSE LEVELS

       0      warnings and errors

       1      normal informative messages (default)

       2      more informative messages

       3      everything