Some special (HUN, DE) characters cause empty display in Receiver Radio app

[gammaw]

Receiver Radio app fails to display song metadata in case of certain Hungarian (e.g., é) or German characters (e.g., ä). In these cases empty metadata is shown in the player. Note that it works for some Hungarian accents e.g. "á".

First hint I found: https://stackoverflow.com/questions/31044773/liquidsoap-tag-encoding

[gammaw]

Funny fact: it works fine for "Gógyfürdő" and "Kiszáradás"

[gammaw]

Here is an example LS -> Icecast update message which is not displaying in the app:

127.0.0.1 - source [19/Mar/2020:14:00:12 +0000] "GET /admin/metadata?mode=updinfo&mount=/radio.mp3&charset=UTF-8&title=Deforestation&artist=Konkr%C3%A9t%20riport&song=Konkr%C3%A9t%20riport%20%2D%20Deforestation HTTP/1.0" 200 203 "-" "Liquidsoap/1.4.0 (Unix; OCaml 4.08.0)" 0

[gammaw]

Posted an issue for AC: AzuraCast/AzuraCast#2538