Having Trouble Reading Unsupported Tag

[david-mk-lawrence]

Hello! I am trying to read this tag in particular https://picard-docs.musicbrainz.org/en/appendices/tag_mapping.html#artists but it looks like it isn't supported. So what I'm trying to do is the following:

let artists_tag: &str = match tag.tag_type() {
    TagType::Ape => "Artists",
    TagType::Id3v2 => "TXXX:ARTISTS", // i also tried TXXX:Artists
    TagType::Mp4Ilst => "----:com.apple.iTunes:ARTISTS",
    TagType::VorbisComments => "ARTISTS",
    _ => "artists",
};

let artists = tag.get_string(&ItemKey::from_key(tag.tag_type(), artists_tag)).unwrap_or_default();

but it always comes back as empty. Is there a different way to go about this?

Thanks!

[Serial-ATA]

Hello!

Tag doesn't retain format-specific keys, so the ItemKey created with "----:com.apple.iTunes:ARTISTS" for example will never return anything.

In the case of TagType::{Id3v2, VorbisComments, Ape}, we are able to convert the items to ItemKey::Unknown. So you can do tag.get_string(&ItemKey::Unknown(String::from("ARTISTS"))) for those formats and it will read and write properly.

Really, the best solution is for an ItemKey::Artists to be added, as I want to eventually phase out ItemKey::Unknown. I'll get that in for 0.21.0.

[david-mk-lawrence]

Perfect, thank you!