recommened settings

[assa69]

hello

i am trying to encode clips into xvid can you recommend any settings for me so that i wont get blocks and any filters to make the picture better

thanks

[Koepi]

Read the xvid-1.0 guide from http://www.doom9.org/ - after understanding what each setting does you'll manage to do that yourself.

Koepi

[sysKin]

Actually finding this guide is so difficult that let me paste the link: http://www.doom9.org/xvid-vdub-final.htm

[assa69]

thanks

[Audionut]

Originally posted by sysKin
Actually finding this guide is so difficult that let me paste the link: http://www.doom9.org/xvid-vdub-final.htm

I agree that that guide is hard to find when you don't know how to find it.:(

Perhaps doom9 could reorganize his site.:confused:

edit: whenever I directly look for guides about xvid I always end up with guides related to old versions of xvid.

[Koepi]

Well, this gets a more or less philosophical problem: in our region we call that "media competence" - you have to learn that. It's about the "how to find information" and "how to deal with them" in respects to reliability of the source.

Bottom line: this site is so huge that you can reorganize like you want it - there are always plenty of people not media competent enough to find the information they need and will always complain about it. (i.e. if Doom9 would make a hard link above the news directing to the xvid-1.0 guide, dvd2svcd users would complain and so on.)

This isn't meant offensive, I only want to encourage people to be aware of their "citizen's duty" to learn (new world order, life long learning[direct translation of a german expression, dunno if it suites in the english language]). :)

Regards
Koepi

[Audionut]

I understand, But alot of us newbies have come from divx, I don't want to be offensive either, but let's face it, I used divx.:D
:confused: LOL
Um anyway.

emphisis on the word perhaps. It ain't my site and only a suggestion.
Perhaps doom9 could update the xvid link in the drop down box on the front page to the guide for the new beta xvid.


Let's face it, it's the best most user friendly xvid there is. IMO.

^^^

That was the one thing that keeped me away from xvid for so long, there was so many options, and I didn't know about doom9 at the time that I was like WTF.

This isn't meant offensive, I only want to encourage people to be aware of their "citizen's duty" to learn (new world order, life long learning[direct translation of a german expression, dunno if it suites in the english language]).

Best damn thing I heard all day.
I lead an exciting life.:D

[sysKin]

Originally posted by Koepi
Well, this gets a more or less philosophical problem: in our region we call that "media competence" - you have to learn that. It's about the "how to find information" and "how to deal with them" in respects to reliability of the source.As much as I agree - just check what clicks you have to perform to find this guide.

guides(good) -> divx/xvid(good) -> xvid(good) -> gordian knot + vdub (wha?) -> xvid1.0 (good) in step3 of gknot procedure (wha??).

This is not where I'd be looking for it.

The link is not even in FAQ - but does appear in 'newbie settings'.

What I'd recommend is not reorganization, but rather an index. It is even more difficult to find codec comparison now...

Radek

[Koepi]

Guides -> Document Overview -> XviD Guide (there's sure a link above to a "guides collection" for xvid, but there you end up in that gknot/vdub thingy).

I think you're right, it could be a little more straight-forward... but then take a look at the huge guide collection - every single program has to be explained, which makes this a little complicated.

Regards
Koepi

[assa69]

since i dont know how to use the parmeters i put the bit rate in the maximam position (10 mb)

i wanted to ask at this bit rate did anyone notice diffrnce in vhq mode 4 or 1 i keep chaging these factors or qpel or the other factors but i dont see any diffrnce

[Sharktooth]

10mbit is an OVERKILL!

[assa69]

ok

but other than that i leave all the parameters unchecked but I chose VHQ on 4 and motion search percision on 6

i wanted to ask can you geta quality better than this without chnage the bit rate but playing only with those unchecked paramters..?

thanks

[assa69]

sysKin i went to the address you said and read it but it doesnt tell much about the parameters just tells you to that and this

i have few questions

1. what is the diffrence between fast recopress and full processing mode is there any diffrnce in quality

2 what are the p i b frames

3.what are the 3 parameters in bvop

thanks for anyone who answer this or paste an link where i can find answers to this

[sysKin]

Originally posted by assa69
1. what is the diffrence between fast recopress and full processing mode is there any diffrnce in quality http://forum.doom9.org/showthread.php?s=&threadid=20181
http://forum.doom9.org/showthread.php?s=&threadid=68906
2 what are the p i b frameshttp://forum.doom9.org/showthread.php?s=&threadid=19436
http://www.cs.cf.ac.uk/Dave/Multimedia/node258.html
3.what are the 3 parameters in bvophttp://www.doom9.org/xvid-vdub-final.htm
http://forum.doom9.org/showthread.php?s=&threadid=48443
thanks for anyone who answer this or paste an link where i can find answers to thishttp://forum.doom9.org/search.php?s=
http://www.google.com

Radek

[GolovachLena]

Originally posted by Koepi
there are always plenty of people not media competent enough to find the information they need and will always complain about it.

Those people STILL find the information they need, via kind sysKin or other kind or less anxious 'bout new world order memeber of community :D And that's wonderful! Don't you think that constant annoying the enlightened ones is the way of learning too ;)

[sysKin]

I don't really tell people to search (too much) because I'm aware that 95% of information on this forum is absolete. There are some people who are searching and recieve incorrect answer - this is bad.

It would be nice to re-visit our FAQ again, it points to some misleading info and doesn't really answer many questions. My signature can't cover all recent issues - and it's not "searchable".

Also, a guide similar to Doom9's one should be distributed with the builds. Online information is not always available for everyone.

Just my wishlist... lol

[m0rtal]

Originally posted by sysKin
Also, a guide similar to Doom9's one should be distributed with the builds. Online information is not always available for everyone.

GREAT idea! These html pages are quite small and highly informative... remember AVISynth guide that always comes with distributive...

[cweb]

Perhaps this thread should become a sticky?

[mikeX]

sysKin made some very good points

the faq really needs a makeover
imo distributing a guide like doom9's one along with the builds is a great idea too, it may be a bit too dvdripping-specific but it's a good start!
i found the distribution of custom quant matrices a great bonus! imagine the pleasant suprise of a guide accompanying the next distro :cool:
(not to mention the headaches and the "Read this guide..." answers it would save most of you guys here...

[crusty]

If I might give you some quick tips Assa69:

-Don't use the weight zones. Instead use avisynth's clip() function to encode the end credits as a separate clip. That way you can alter many more settings than you could with weight zones. You could add a more powerful noise filter than for the actual content, and you could use Quarterpel. Qpel doesn't make that much difference in the actual movie but especially scrolling end credits benefit tremendously.
And O yes, a clip with and a clip without Qpel can be fitted together.

-Like the guide says, VHQ greater dan 1 just decreases speed.It might increase compressibility, but it's a tradeoff.

-I tend to lower the Maximum I-frame interval to something like 200 or 250. It usually keeps the I-frame pumping effect away.
I-frame pumping is best spotted when during a long scene the visual quality degrades very slowly but unnoticeable, and then a new I-frame suddenly looks like a 'boost'in visual quality.

-Leave the Quantization tab alone. It's really for people who really know what they're doing.

-Also best to keep away from the 'I-frame tuning' and 'Curve Compression' features.

-Fiddling with the settings has it's benefits, but there are far greaters benefits in both quality and compressability when using avisynth or virtualdub filters. Avisynth filters are preferred.
Stick to the recommended xvid settings and go to the avisynth forum and learn about it's use and the available filters.

-Don't expect miracles. A 2 hour movie at 720x560 will fit on 1 CD but will look like psychedelic tetris unless you do some serious tweaking. Avoiding blocks is a bigger concern than keeping the resolution high or the picture as sharp as possible. Filters will go a long way to achieve the quality you desire.

[Rash]

Originally on sysKin signature
- first pass is faster than second. it no longer produces maximum quality, resulting AVI is valid but I don't recommend to keep it
Sorry, but why shouldn't we keep the AVI? And sorry asking the most annoying question you guys can hear, but how could I do the compressibility test now? ;)
Thanks a lot.

[BoNz1]

Originally posted by Rash
Sorry, but why shouldn't we keep the AVI? And sorry asking the most annoying question you guys can hear, but how could I do the compressibility test now? ;)
Thanks a lot.

Ok, I can answer number 1. You should not keep the avi because fast 1st pass is on by default and while it gives a nice speedup for the first pass it does so by disabling some things completely or enabling faster less accurate things. Although, I think if you make the whole video a zone and set it to quant 2 in the first pass this will turn off fast 1st pass. But I am not totally sure, but sysKin said there was some trick to turn it off, I think this is it. Anyway, as for your second question I think arcalculator can do a comp. check but I have never used it much so I don't totally know.

[m0rtal]

Originally posted by mikeX
i found the distribution of custom quant matrices a great bonus!
maybe supplying guides (or explanation) for them will be good practice too :)

[Koepi]

m0rtal:

by repeating that everywhere you think it would fit you just make me feeling dumb. And if I feel dumb I refuse to do the things in question :P

(Repeating simply wastes resources on every side.)

Regards
Koepi

[m0rtal]

Koepi, wait a second! I was not repeating - in first post, I wrote about docs for xvid, and in second - about docs for matrices...
sorry for misunderstanding :(
now _you_ make _me_ feel dumb ;)

[Rash]

Originally posted by BoNz1
Ok, I can answer number 1. You should not keep the avi because fast 1st pass is on by default and while it gives a nice speedup for the first pass it does so by disabling some things completely or enabling faster less accurate things. Although, I think if you make the whole video a zone and set it to quant 2 in the first pass this will turn off fast 1st pass. But I am not totally sure, but sysKin said there was some trick to turn it off, I think this is it. Anyway, as for your second question I think arcalculator can do a comp. check but I have never used it much so I don't totally know.
Thanks Bonzi. I would probably try doing the manual comp. check described on DivX forum. ;)

[BoNz1]

Ok, in the lastest XviD builds from the cvs there is a warning that the 1st pass may not be mpeg4 compliant so definitely don't keep it :).

[Rash]

Humm, cool. I'll just use it for comp check then. Thanks again. :)