Thank you too, Florian, for this nice feature.
Sorry, I expected trouble. I loaded the whole library (25 thousands files) into Mp3tag. In a newly created columns %_cover_width% and %_cover_height% the table shows only partially the value. If I select the erronous lines, it immediately shows those values.
Moreover: Mp3tag at some records does not show any cover image info (23rd line on an uplodead image).
The more regrettable: Mp3tag does not use the missing dimension values at filtering and other functions. I did a filter:
%_extension% IS mp3 AND "$ifgreater(%_cover_height%,850,1,)" IS 1
Mp3 tag shows only records, where it already read the dimensions data.
Error with the other function, by calculations: look at the line No. 23! Missing all cover image values. And the column "Fölös" (mean "unnecessary") shows incorrect value "98", because this value is based on image size (bytes) value, too. The correct value must be "2".
The column is:
$fmtNum($div($sub(%_tag_size%,$add($len(%albumartist%$meta_sep(composer, ________ )$meta_sep(arranger, ________ )$meta_sep(lyricist, ________ )$meta_sep(artist, ________ )$meta_sep(conductor, ________ )%album%%title%$meta_sep(genre, _____ )%subtitle%%contentgroup%$meta_sep(publisher, ________ )%comment%%unsyncedlyrics%%encodersettings%%cuesheet%%tagtechinfo%),%_cover_size%)),1024))
I tried: reopen the app; refresh the list.
Now I try to test with less loaded files.