Audioformat no appropriate default constructor available

[jrlanglois]

To be fully transparent, I didn’t dive into the MP3 side of things because I couldn’t find obvious information or outlines of where the metadata can be. I did manage with most formats though… but that’s not helpful to the MP3 users around here.

Also, I haven’t brushed the branch up in a long time… feel free to have a hack at it though!

[daniel]

Thanks for the addition. Stil sad to see this work lying around gathering dust…
but that’s a different topic