Is there any LAME C++ wrapper\simplifier (working on Linux Mac and Win from pure code)?

I want to create simple pcm to mp3 C++ project. I want it to use LAME. I love LAME but it's really big. so I need some kind of OpenSource working from pure code with pure lame code workflow simplifier. So to say I give it File with PCM and DEST file. Call something like:

LameSimple.ToMP3(file with PCM, File with MP3 , 44100, 16, MP3, VBR);

ore such thing in 4 - 5 lines (examples of course should exist) and I have vhat I needed It should be light, simple, powerfool, opensource, crossplatform.

Is there any thing like this?