* all: Patch by Loren Merritt.
" This patch makes scene-cut detection based on the relative cost of I-frame vs P-frame, rather than just on the number of I-blocks used. It also makes the scene-cut threshold configurable. This doesn't have a very large effect: Most scene cuts are obvious to either algorithm. But I think this way is better in some less clear cut cases, and sometimes finds a better spot for an I-frame than just waiting for the max I-frame interval." git-svn-id: svn://svn.videolan.org/x264/trunk@49 df754926-b1dd-0310-bc7b-ec298dee348c