mp4art(1) MP4v2 -r

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