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