Encoding videos with CUDA

Is there any way to encode videos while leveraging CUDA using tools like FFmpeg or mencoder?

http://www.pcinlife.com/article/graphics/2009-07-15/1247632564d831.html

CUDA video encoder is useless, you need 2x bitrate to reach x264 in same quality level, that is meant if you need to share your video to Internet, you need 2 more time to upload the video that encoded by CUDA encoder.

Oh, so that’s not helping me.

I’ll stick with CPU encoding for now. Thanks anyway!