Is it possible to get API private videos from Youtube or Vimeo?

I have a few questions:

1) Can I load in Youtube the channel is a private video(not public) and then using the API to display for authorized users ?
2) Can I use the player from Vimeo or Youtube to upload videos that are on your server ?

As you know, I need to keep my video from being viewed in free access.
Third-party player this is a variant of the latter. (Not advised!!!))

Thank you!