[XviD-devel] HUGE ME regressions between beta1 and beta2

[Radek Czyz]

Hi again,

Michael, I have a question: the lambda tables for 16x16 search are 
different than for 8x8 search. For 8x8, they are linear:
1, 2, 3, 4, 5, 6, 7, 8, 9...

but for 16x16, there's a kink at low quants:

0.5, 1, 1.5, 2, 2.5, 5, 7, 8, 9 ......

Why's that?
I'm currently getting much better results for linear tables everywhere.

In other news,

The slowdown is caused by all motion searches checking many more vectors 
than before. For some frames, twice as many. Apparenty diamonds like to 
wander far away now.

The filesize difference at fixed quant is caused almost entirely by 
b-frames being much larger than before. P-frames were same size, and are 
smaller now with linear tables.

Regards,
Radek