This is fantastic news! Thx for that patch, Dark Shikari. Now, there’s no chance you might get super-bored and port CRF to Xvid?
I did some tests with wizboy11’s binary and short clips (10000 frames) from five PAL DVDs.
Quote:
Originally Posted by Xvid_Encraw
-cq 2 -qmatrix "Heini MR.xcm" -bquant_ratio 100 -bquant_offset 100 -qpel -bvhq -zones 0,w,1,O
-lumimasking added for VAQ encodings.
|
File sizes (in Matroska container)
Code:
| size (KByte) | Diff. | Diff. by frame type (%)
sample | VAQ off | VAQ on | % | I | P | B
-----------+---------+--------+-------+-------+-------+--------
1 dialogue | 100958 | 87338 | -13.4 | -11.3 | -23.0 | +7.5
-----------+---------+--------+-------+-------+-------+--------
2 night | 186572 | 169400 | -9.2 | -8.6 | -14.2 | +2.7
-----------+---------+--------+-------+-------+-------+--------
3 CG | 180319 | 156962 | -13.0 | -9.5 | -19.9 | +5.1
-----------+---------+--------+-------+-------+-------+--------
4 action | 246899 | 218558 | -11.5 | -8.1 | -16.3 | +2.0
-----------+---------+--------+-------+-------+-------+--------
5 noisy | 460090 | 403804 | -12.2 | -10.9 | -18.6 | +2.9
Not much to say about visual quality. There’s hardly ever any significant difference between VAQ clips non-VAQ ones. And then only when comparing still frames. So ~10% smaller files without quality or speed drop. I think I might like that.