owntone-server/docs/artwork.md

Artwork

OwnTone has support for PNG and JPEG artwork which is either:

• embedded in the media files
• placed as separate image files in the library
• made available online by the radio station

For media in your library, OwnTone will try to locate album and artist artwork (group artwork) by the following procedure:

• if a file {artwork,cover,Folder}.{png,jpg} is found in one of the directories containing files that are part of the group, it is used as the artwork. The first file found is used, ordering is not guaranteed;
• failing that, if [directory name].{png,jpg} is found in one of the directories containing files that are part of the group, it is used as the artwork. The first file found is used, ordering is not guaranteed;
• failing that, individual files are examined and the first file found with an embedded artwork is used. Here again, ordering is not guaranteed.

{artwork,cover,Folder} are the default, you can add other base names in the configuration file. Here you can also enable/disable support for individual file artwork (instead of using the same artwork for all tracks in an entire album).

For playlists in your library, say /foo/bar.m3u, then for any http streams in the list, OwnTone will look for /foo/bar.{jpg,png}.

You can use symlinks for the artwork files.

OwnTone caches artwork in a separate cache file. The default path is /var/cache/owntone/cache.db and can be configured in the configuration file. The cache.db file can be deleted without losing the library and pairing informations.