Yes, Ember can only save all movie set images in a common folder. It's nearly impossible to create a proper solution to save movie set images in a parent folder of a movie that "should" be the folder that contains all movies of a movie set. There is no way to proof if the parent folder is really a movie set folder. So our solution is that we save all movie set images in one common folder. That works even if someone don't use parent movie set folders.
There are two ways to add the movie set images to Kodi's database: you can enable the file names for the Kodi addon Movie Set Artwork Automator (MSAA) or you use Embers Kodi Interface (KI) to send the paths via JSON. MSAA does not support movie set DiscArts, but works if anyone has installed the addon in Kodi. For the KI it's not important what you use as file name, but the KI default file names are more proper named and also supports DiscArts.
You have to set the movie set artwork folder also the the KI host settings. Please note that you set the path as samba path in KI host settings, e.g.
smb://SERVER/ARTWORK, if you don't save the images on the same PC like Kodi.
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You can use this patter for your movie folders:
Code:
$B\{$N\}$T {($Y)} $V
$B = Base / source folder (it's important to use $B if you set any sub-folder (e.g. $N) in folder pattern)
{$N\} = Movie Set folder if the movie is inside a movie set
$N does not check if only one movie has been added to a set.