[Feature Request] Add multi-threading to transcoder

[mlapaglia]

I have an 8 core server, sitting waiting for each file to transcode one at a time takes 8 times longer than it could if all cores were being used.

[desultory-zz]

I think you can just start the celery script with more concurrency and it will accomplish this

[Mechazawa]

Yes, the celery script already supports this.

[mlapaglia]

Right, but the issue comes in with racing other users to complete a transcode. If you are transcoding 1 single album it's only going to transcode one file at a time. With concurrency you can certainly transcode 8 albums at a time though.

I tried implementing it, but python was keeping me from running more python code as a child.