Hello!
The question is the following: can I add id3v2 fields to a file using built-in LAME library functions? As far as I go, there are only functions to add title, artist, year, genre, album, comment and track number, which is all common between v1 and v2. Well, there is also id3tag_set_albumart, and id3tag_set_fieldvalue, the latter being the candidate for what I need, but I don't see how I can use it, and there is apparently neither documentation nor any example code.
So, any advice is appreciated.