This great antique frame has been brought in to have the rebate made a little larger. It has some nice details, like the offset corners, crisply carved flutes, and some nice compo ornament, not to mention the huge corner ornaments.
I don't really know how you would describe this style of frame, it has elements of Neoclassical, Régence, Palladian, Empire, and Louis XVI frame styles. So your guess is as good as mine, let's just call it French.