Encoding "Outer Space"

[agressiv]

So I'm trying to encode some of my TNG disks, but I'm experiencing a lot of blocking with any encoder I'm using.

This stuff is all interlaced, and that gets de-interlaced well, but the blocking effect (usually a solid color background or outer space) just looks atrocious, even on HQ-Insane mode.

here is the avisynth script:
global MeGUI_darx = 0
global MeGUI_dary = 0
DGDecode_mpeg2source("E:\Movies\TNGTest\VIDEO_TS\VTS_02_1.d2v",info=3)
ColorMatrix(hints=true)
edeintted = AssumeTFF().SeparateFields().SelectEven().EEDI2(field=-1)
tdeintted = TDeint(edeint=edeintted,order=1)
tfm(clip2=tdeintted).tdecimate(hybrid=1)


Yes, they are JPEGs, but the original PNG's were too big to be attachments, and these are close enough. Just look a the "outer space" in the x264 image. (XviD is even worse). I'm guessing the star field is complicating things. While this is a shot just from HQ-Slow, HQ-Insane isn't much better, even on a 3 pass 2000kbit encode. Its not making a difference how good of quality I make it.

Anyone have any ideas? I've messed around with x264 deblocking (no difference) but can't seem to find anything magical that I can use. Maybe I'm just being picky, but on a 1080p 57" screen, its very noticable. If there is any other information anyone needs, let me know!

Thanks!

agressiv

[agressiv]

Did some searching and found the Tweak function, which seems to be the right way to go.

If anyone has something better, let me know :)

agressiv

[bkman]

Methods to fight blocking in dark flat areas within x264 are:

* enable "no fast p-skip"
* use Sharktooth's eqm_avc_hr quantisation matrix
* experiment with adaptive quantisation settings

Each topic has been covered before, so do a search ;)