Putting a rectangle or square image inside a circle without cropping?

[_EST_Sickness]

Hello!

I'm fairly new to Photoshop, I know some basics, but I'm still learning the ropes, and I ran into something I wanted to make.

Namely, I want to put a square or a rectangle image inside a circle, without cropping. So what I mean by this, is lets take a scenario:

I have a rectangle picture of someone's face, it's like a portrait. The picture has a brown frame around it, so it's basically a framed picture. Now, I want to turn it into a circle instead of a rectangle, while still keeping all the same details about the picture - no cropping (so the picture still has a frame around it), same quality if possible, same distance etc..

I tried messing around with the 'Spherize' option, but it kept making the picture all zoomed in and weird, also losing the frame.

Is there any way I can basically do this?

To bring out a example in pictures :

[fenjas29325284]

You can't put the content of a rectangle in a circle without cropping. What do you think Photoshop will do with the outside content? Squeeze? Like this (left: Polarcoordinates, right: Liquify)?

Crop the image and create a new frame.

Fenja