[Solved] where is RDO for B-Frames option ?

Megui version 0.3.0.3005
In the video configuration dialog, at RC and ME tab, I set the Subpixel Refinement to 7, but the advanced tab, I can’t seem to find RDO for B-Frames option, where is it ?
Thanks
Answer #1
Solved it =)
http://git.videolan.org/?p=x264.git;a=commitdiff;h=c89bc900a3bf0d4c4c728ad378703970b4f14e18