Ways to find ratio of macroblocks using encoder or decoder?

Not really # of macroblocks, but x264 always outputs basic statistical information on the encode: Code:

There is no "different sizes" to take into account. Macroblocks are always 16x16. If it says "P16x16: 50%, P8x8: 50%", then half of the macroblocks (by area or by number, they're the same) are subdivided into 8x8 partitions and the other half are not subdivided.

I thought I'd seen blocks with 8x16 and two 8x8 blocks in elecard, before the trial ran out. I guess not, it might have been referring to something else I wasn't up on. Okay, I reinstalled and here's what confused me: Usually they're all the same type (like 8x8) but sometimes others show up.

In that case, x264's stats are weighted by area. One MB with two SubPart_8x8 and two SubPart_4x4 counts as half of a P8x8 MB and half of a P4x4 MB.

Thanks for your info. I decided to use the JM reference software to encode raw YUV video files to get what I want since I'm more familiar with that software. It's very slow, but it works.