Audio Stream Language Metadata - List

[daigo99]

I've been labelling the audio streams on some MP4s using ffmpeg

ffmpeg -i File.mp4 -map 0 -c copy -metadata:s:a:0 language=eng -metadata:s:a:1 language=rus NewFile.mp4

Does anyone know where I can find a list, assuming one exists, of all the languages supported with the abbreviations used.

Many thanks

[ProWo]

https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes
(Alpha 3 codes)

[daigo99]

Exactly what I was looking for.
Many thanks.