Cloudflare stream will it work with an already existing library

Hello having a hard time getting this question answered. I am thinking about implementing Stream. No one as of yet has answered my question , I am i able to add my existing HLS video library to this stream service and then move forward or would i have to recompress everything from scratch. Hopefully someone might have the answer for this without pointing me just to the streaming page which does not answer any questions about if a company already has a existing library. Thanks

Cloudflare’s Stream service requires you to upload your videos to Cloudflare. You can’t use Stream to stream videos stored elsewhere.