[Feature] Support for separate album and track artwork

[mikeysas]

To track discussion from https://forums.lyrion.org/forum/user-forums/logitech-media-server/1784846-feature-request-ignore-embedded-album-art?p=1784919#post1784919

If both exist, display embedded artwork with track listings and on the now playing screen and use cover.jpg/folder.jpg for Album listings or any of the screens where there is a single picture representing the an entire album or release. If only one artwork source exists then it should be used in all views.

Note that for this view in Material, to support the use case for separate artwork by disc in a box set, I think you would want to include the embedded artwork if it is a multi disc set. For single disc albums it should display cover.jpg/folder.jpg

To avoid user confusion / surprises, a preference could be added with the following options:

• Always prefer embedded artwork
• Always prefer cover.jpg or folder.jpg
• Prefer cover.jpg or folder.jpg for Album/Release views and embedded artwork for track listings and Now Playing

It would always fall back to the other option when the preferred is not available. This preference can be defaulted to behave as LMS does currently so no users will be suprised by proposed change.

[michaelherger]

Can't promise anything. But I'll try to look into this to at least have better understanding of the situation.

[Blackfiction]

You can tag the cover art of the first track to the boxset art, and use separate art for all other tracks. At least everything is tagged in files. In this solution you also need to have album art that is not in tags. Maybe possible to have 2 pictures in the tags, one for boxset and one for tracks?