NAME

       mp4art - manual page for mp4art - MP4v2 2.0.0

SYNOPSIS

       mp4art [OPTION]... ACTION file...

DESCRIPTION

       For  each  mp4  (m4a)  file  specified,  perform  the  specified ACTION. An action must be
       specified. Some options are not applicable for some actions.

       ACTIONS

       --list list all covr-boxes

       --add IMG
              add covr-box from IMG file

       --replace IMG
              replace covr-box with IMG file

       --remove
              remove covr-box

       --extract
              extract covr-box

       ACTION PARAMETERS

       --art-any
              act on all covr-boxes (default)

       --art-index IDX
              act on covr-box index IDX

       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