Add support for autobpm plugin

[tandy-1000]

I made a plugin that uses Librosa to calculate bpm automatically, it has been mainlined.
These dependencies are needed for it to work.

[sentriz]

thanks👌

[sentriz]

@tandy-1000 unfortunately it seems the librosa dependancy has made the CI build blow up to 6+ hours, which then gets killed from a timeout. meaning i can't do a release

i think it must be really slow to build numbas or skikit-learn or something on armv7. any ideas?

[tandy-1000]

Hmm, is anyone using armv7?

[tandy-1000]

Can we still build arm64 though? I'm using that :D

[sentriz]

hahaha oh dear. sure, let me see if this one manages to build first though https://github.com/sentriz/betanin/actions/runs/6784481312

[tandy-1000]

also, I can't seem to access to containers at ghcr.io/sentriz/betanin is that the right link?

[sentriz]

looks like even building for arm64 is horrendously slow https://github.com/sentriz/betanin/actions/runs/6786467664

[sentriz]

@tandy-1000 approaching the 6 hour limit now. it looks like compiling for any architecture other than amd64 is a no go (at least with qemu on github actions)

any ideas? can we support bpm without numbas or whatever the package is?

[sentriz]

sorry really need to get a release out so i removed librosa for now. can we build it an alternative way that wont take ages? would be happy to accept a PR. there is a new "debug-release" github action so we can see how long a build would take for a PR