Export downloaded files

[totchi-lagawi]

Checklist

• I've checked that there is no other issue about this feature request.
• This issue contains only one feature request.
• The title of this issue accurately describes the feature request.

Feature description

This was asked for both the original InnerTube and its fork by Malopieds, and since this fork seems to be much more powerful than those, I ask it here too.

As the title supposed, I'd like to be able to export the downloaded songs, in for example /storage/emulated/UID/Music, and of course in the MPEG-3 or FLAC format. As of the local storage support of OuterTune, it could even be possible to play these songs from within the app. It could even be considered to replace the current download system with this one.

Whatever you choose to do, thanks for this app. InnerTune is the best music playing app I found so far, and the lack of some functionalities was the only problem I could find about it. I have some, well, troubles with Java and Gradle/Maven/Android Studio, and so I am thankful to you for having brought these in this app. Thanks.

Why do you want this feature?

I have a MP3 player, which can as of its nature only read audio files. Manually downloading files from YouTube works, but it is a pain, as well as moving the files from my computer to my SD card. Be that as it may, having songs stored externally has numerous advantages, like keeping songs even after an app reinstall or just a phone reset.

Additional information

Thanks again!