Where do I get ffavisynth.dll?

[Chengbin]

Where do I get that dll? I got that dll from a friend, and it doesn't work well. I'm trying to use the deband filter in ffdshow. It works perfectly with MPC (best result BY FAR compared to other filters I've used). But when I use it to encode a video, with the setting ffdshow("default"), it doesn't really work (it is debanding the person's face instead of the ringing).

Does the version matter? Because that's the only thing I can think of.

[GrofLuigi]

ffdshow tryouts (http://sourceforge.net/project/showfiles.php?group_id=173941). Use the installer, select "Avisynth..." and versions will be matched.

Regarding the usage, I don't know. :(

GL

[Chengbin]

Using the latest ffdshow (r2857 or something), it is telling me that it isn't a avisynth 2.5 plugin????

[buzzqw]

latest should be 2913 ...

BHH

[Leak]

Using the latest ffdshow (r2857 or something), it is telling me that it isn't a avisynth 2.5 plugin????
It doesn't use the regular C++ AviSynth interface, but the C interface.

That's why a ffavisynth.avsi gets installed alongside with it:

Load_Stdcall_Plugin("ffavisynth.dll")

That's how you load it, and that's probably what already gets automatically done in AviSynth unless you deleted the AVSI file.

[Comatose]

AFAIK, ffdshow tryout's debanding is just gradfun2db. I recall reading that somewhere, probably in the gradfun2db thread.

[Leak]

AFAIK, ffdshow tryout's debanding is just gradfun2db. I recall reading that somewhere, probably in the gradfun2db thread.
Yeah, Milan at one point integrated gradfun2b into ffdshow as the "Debanding" filter...

np: Can - Aspectacle (Anthology (Disc 2))

[SPiKA]

Maybe it's your x264 settings (or not enough bitrate?) not keeping the dithering created by gradfun...

[Chengbin]

Here are 2 pictures. Both 1000Kbps.

BTW, ffavisynth.dll still doesn't work even with ffavisynth.avsi.

Gradfun2db (1.7)

http://i39.tinypic.com/e98dpd.png

ffdshow (deband) (1.58)

http://i41.tinypic.com/2e5lkc8.png

[SPiKA]

Post your x264 settings...

[Chengbin]

Same for both videos

cabac=1 / ref=10 / deblock=1:-1:-1 / analyse=0x3:0x113 / me=umh / subme=9 / psy_rd=0.0:0.0 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=0 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=6 / b_pyramid=1 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / keyint=1000 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=-392 / ratetol=1.0 / qcomp=0.70 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=25000 / vbv_bufsize=14000 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00

Bitrate is messed up in HDC (negative bitrate???). The actual bitrate is about 1000Kbps.

[Chengbin]

Can anyone tell me why it won't work? Why did my friend's ffavisynth.dll work? Why does it not work properly? Can anyone send their ffavisynth.dll? Thanks a lot.

[SPiKA]

Try GradFun2DBmod, raising psy_rd to somewhere between 0.6 ~ 1.0 and me tesa maybe...

[JohannesL]

And if you're hardcore: zones QP0 for the debanded areas.
edit: I mean..

1) Use the best possible pre-processing
2) Encode at CRF18
3) Look at the encode, and see where the encoder ruined the gradients
4) Re-encode with zones QP0 for these parts