Various tidbits on XviD settings + wishlist

[Hanty]

Ok, I've gone through Koepi's XviD options explained, the XviD Q&A, had the opportunity to talk to Doom9 and Koepi at irc directly about XviD.

...and I still need to know more more more. ;)

Honestly, my tryouts of XviD so far has ended up in shitty looking encodes (only clips), I keep hearing people saying the get good stuff though with it. So somewhere it must be me doing something wrong. (I don't consider my own experiences to be empirical evidence that something rocks/sucks)

1. Quantization tuning
Can this be compared to the DRF levels in nandub? to me it sounds as if they appear to be similar if not in content then in usage. So far I've left the defaults on this (min 2 / max 31). What would be a "typical" range? for a 1 CD rip and a 2 CD rip respectively?

2. Debug / 2-pass
This is also a something I can't help to compare as possible DRF levels (I'm nandub damaged, agreed) I've had no reference point and played around with these treating them like DRF levels and held min 2 /max 9 for my clips.

Wishlist
(some of these suggestions are completely wild and I have no idea if they work in practise)

*Mentioned before, and adding my vote to the fray, something like
the anti-shit MinQ which recompresses the frame at a lower
compression level (I assume a drop in quantizizer would be
appropriate for Xvid) if the XX value is above the compared value
for the frame.

*A stats reader similar to Koepi's for Nandub ( I don't like
GKnots :b )

*Making a setting that detects even-colored fields. If a field is
largely even colored then the codec should compare it to earlier
frames to determine if it is a "stable" non-motion field and thus
supress shading changes. (The thought behind this is to steem walls
and background appearing "alive", something troublesome when encoding
animations which has lots of these fields)

*A XviD post-processing options Explained.

*XDub!!!! :D

Many thanks to the Xvid team for giving up large parts of your freetime in order to get this stuff for us. I sincerely hope that we are seeing the birth of something pace-setting here and I would have been proud to have been there from its conception...now get back to coding you and don't come back until we have the next build, I want to see you sweat blood and cry by the compiler! ;b

[Koepi]

The nandub stats reader works the same way on XviD stats as they have the same structure (!).

Btw., I don't recall being on IRC, chatting with doom9 and you about XviD... you definatly must have mixed something up...

DS filter explained? No way. There are just a few options and they are self explanatory (well, ok, maybe Y and C should be more verbose - Nic?)


Please, to all of you:
do me the favor and STOP drawing conclusions from nandub to XviD! They are _unrealted_ and will stay that way.
Nandub was useful for adding workarounds for shitty DivX3 codec.
XviD is a totally different core and doesn't need the same settings or anything.
Still, if your output looks bad, you may need to tweak your sources. It's the same thing as with other codecs: they _can't_ do miracles. A first pass ending up at 3GB can't look good when the desired size is 100 MB.


Regards,
Koepi

P.S.: stop bugging for all that strange stuff. Let's get the stuff clean and working first. We can think of other stuff later on, but we have to do it _right_ first.

[Hanty]

Well, then someone was using your name in the Doom9 channel. If you want to make a a big deal out if there were others there as well. 'twas about 2-3 weeks ago. Who knows, who cares, it's not like I feel special because of it.

Like I pointed out, it's a wishlist, if you feel bugged about a wish list whom I even point out that it might not be concievable in practise then you might just put up a definitve request for people not to come with comments.

[Koepi]

I just wanted to point out that there is something like a priority list, and some things simply have to wait.

AND that I dislike that one half of the crowd says "gimme nandub-xvid" and the other is more like "phew, don't the divx3 controls suffice?"

So I hope you understand the situation a little bit better now.

Btw., where did I write that I make something big out of anything?
Why are you offended by a simple, straight reply? Maybe you should read replies 2 or 3 times before replying again :) There was nothing offending in it.

Regards,
Koepi

[Hanty]

I didn't feel offense, but I took it as if you were chewing me
out. Why did I interpret it as such? Cultural differences, different usages of the english language, different views on the matter at hand, the fact that writing messages doesn't well communicate the tone the author uses? All this and more, but I'll take your word that it wasn't your intent.

And Of course you have a priority, I'm not demanding anything (I'm not in a position to do so) I admire and appreciate all the hard work the XviD team is putting into the codec, and my appreciation is the only thing I can contribute to your effort. Hoping that it will make the long hours of testing/coding/re-testing/coding easier.

[Teegedeck]

Just wanted to say, it's nice to read that you have such a positive attitude! Welcome and please feel at home around here! :)

[OUTPinged_]

heh, good try haunty, your ritorical skills are way better than mine.

a couple more of threads like that and anime rippers will be able to come up with usefull suggestions.

(took a look at haunty's sig and now i know where i did knew that nick from)

take a look at earlyer thread by me, it was discussed there :/

[sumpm1]

my wish list, that the xvid team completes all of their current objectives and then we can talk about a wish list. Right now I think that they have enough things to implement.