getting best quality / compression posible

[3dfan]

i've seen some movies with a really good quality when they are 3 hours lenght or even little more, all them are xvid enconded, so i guess xvid is the right tool for get the best of quality and compression, i would like to learn how to get things like that, i guess those movies are multipass enconded or something like that but i am not experienced on this, so, i would like to get help or good tutorials or links to learn how to get best compression with best quality posible for some personal files i want to encode. anyone can helpme learning?? thanks!

[communist]

http://www.doom9.org/index.html?/xvid-vdub-final.htm
http://www.doom9.org/index.html?/autogk.htm

[jpodtbc]

hey. i was hoping to find similar information and i had been to the first link but i found that it wasn't very accurate. for instance, they describe opening menus but the menu screenshots don't match nor do the options. from vdubmod, i can't seem to find xvid's profile @ level menu.

[nightrhyme]

What version of XviD are you using ?
The profile@Level has been in the same place for some time.

This is screenshot of XviD 1.02 beta 2
http://img139.imageshack.us/img139/5091/xvidenc4cl.jpg

Could you provide a screenshot of your XviD configurations window ?

[3dfan]

oh, i forgot to mention i meant 3 hours movies "WITH 700MB" size, maybe it'll change the sense of the topic a little, im checking now those links provided, thank you...

[CWR03]

You're not likely to get a 3-hour movie in a 700MB file with any semblance of quality, especially with AutoGK. I use the full Gordian Knot which is pretty easy to use once you've learned it (which isn't so easy), and the best I could possibly hope for would be getting 3 hours into 1,500MB, and that's with a reduced resolution.

[nightrhyme]

3 hours on 700mb isn't going to be very pretty. But for that purpose you should definitely use Jawos 1CD Matrix, get it here: http://www-users.mat.uni.torun.pl/~jawor/matrix/Jawor_1CD_Matrix.xcm

Use low, very low resolution and just follow the guide linked above

[Guest]

getting best quality / compression possible Please read and follow forum rules, specifically rule 12: do not ask what's best. Thank you.
:readrule:

[chilledoutuk]

I dont like gordian knot and its overcomplicated GUI.

I much prefer to just use avisynth and vdub on there own.

[ChronoCross]

Overcomplicated lol. I onnly use it to do cropping and calculate filesizes nowadays. Then using MeGUI to do the actual encode.

[Kostarum Rex Persia]

For you, 3dfan, is x264 codec. With x264,you will got a much better quality then Xvid,but on much smaller bitrate.

Here is my example,my video (2 hours and 25 minutes) is 703 MB file with bitrate 740 kbps.And that video looks fantastic,of course,on 2 pass encoding.

[jpodtbc]

update: i had installed a newer version of xvid but still wasn't getting the proper settings ui. i checked my .dll versions and i had an old xvid.dll. i deleted and re-installed. then xvid was gone altogether. then i took xvidvfw.dll and renamed to xvid.dll. now it works fine.

strange.

[3dfan]

i understand a cannot expect perfect quality from a 3 hours file in a just 700 mb, the file i meant has a 406lbps bitrate and mp3 126 kbps 48000hz when does not look perfect, still looks great,

ostarum Rex Persia, i tried that x264 codec from the http://www.free-codecs.com/ site and when i could enconde ...,, i couldn't watch the file, the players just complain about missing codec and won't play it, i tried enconding with the fourcc as divx and xvid, and the players open the video an resise de window but only display blank screen but the divx player displays just green artifacts.

nightrhyme, what should i suppose to do with that xcm file? put it in a codec folder or what?? can you explain me please

almost forgot: i'am using virtualdub for all this


sorry for the rule thing, weirdest rule ever read btw

[nightrhyme]

First to playback X264 content you need Decoder for instance FFDShow. Get it here: FFDShow (http://mirror01.x264.nl/x264/ffdshow-20051006.exe)
X264 will probably be a better choice since you want that much compression.

Second to load a custom matrix (the xcm file) in XviD Encoder. Do like shown in this little clip I made for you:XviD Help (http://www.designstudent.dk/nightrhyme/XviD.rar)

[Caroliano]

And also don't use such high bitrate audio, use either Vorbis or He-aac at the half of the bitrate. I bet you can't perceive diference in quality. And if you want to use vorbis, use Matroska as container.

[3dfan]

thank you all, i finally used xvid 2pass @ 620kbps fo my file, i got really better quality than single pass, really close to the original file with half the size :cool:

just another question, i tested with an extracted sample of the original file which is 9 seconds lenght and 2.73 mb, i never was able to improve the quality of that sample from a single pass enconding, tried multipass but quality was always the same as single pass, i would like to know if there is a way to improve quality with multipass for smaller files, as with large files, i tried with those things you provide, that matrix file, etc but always got identical quality for both passes.

[aeternitas]

i would like to know if there is a way to improve quality with multipass for smaller files, as with large files, i tried with those things you provide, that matrix file, etc but always got identical quality for both passes.

Yes, use x264.

[Teegedeck]

If you mean 'better' at those low bitrates you wanted to use for the movie, then x264 would really be better

No, small files don't come out better using two-pass. Encode at a constant quantizer or CBR with capped quantizers instead.