Ogg Flac support

I'd like to see support for OGG files containing FLAC, i.e. Ogg Flac .ogg/.oga files.

I believe some support for OGGs containing OPUS was added, so possibly support for FLAC within OGGs would be relatively simple to add too.

I'm using:

ffmpeg -i INPUT.flac -codec:a copy OUTPUT.oga

to create Ogg Flacs.

copy can be substituted for flac but I don't think it's necessary for a valid Ogg Flac.

Trying to edit such a file in Mp3tag currently results in:



Mp3tag v3.19