Slightly oversized AVIs

[mlmll]

Hi all,

First of all, as this is my 1st post, I take this opportunity to thank Gordian Knot's developpers and also the authors of the great guides I found on doom9.org. They allowed the newbie I am to rip DVD's very easily, even with subtitles !

Now for my question : I scrupulously followed the latest guides about using GKnot .26, along with the divx 5.02 codec. I did the 5% estimation test and all, a 2-pass coding... but the AVI was slightly oversized : 1*475*725*312 bytes (1407.3 Mb), a bit too much to fit on 2 700 Mb CD's, though it was the required target on GKnot's bitrate panel.

Searched this forum about this problem, but found nothing. Any ideas someone ? What did I do wrong ? I'd be glad to bring any additional info for troubleshooting.

(BTW - I ripped the same movie with another DVD ripper + DivX 4 before, and on comparison, I see the one I got with gknot 0.26 + DivX 5 gives an image a little too red. How to correct this ?)

TIA

MLL

[manono]

Hi-

Did you allow for the audio overhead (and the audio, of course) when figuring filesize? It might be up to 13 MB or so. It's in the Interleaving and AV Overhead box (right center) in the Bit Rate Tab.

To save reencoding the whole thing, you might consider just reencoding the End Credits at a lower bit rate (or a higher Quant) and splicing them in.

As for the red problem, I haven't heard of that one before. But the Hue Saturate and Intensity filter for VDub or its AviSynth counterpart called Tweak should be able to fix it. I don't see how it could be GKnot's fault. I don't use DivX 5.02, so I don't know if it's an issue with that codec.

And welcome to the forums.

[mlmll]

Originally posted by manono
Did you allow for the audio overhead (and the audio, of course) when figuring filesize? It might be up to 13 MB or so. It's in the Interleaving and AV Overhead box (right center) in the Bit Rate Tab.

To save reencoding the whole thing, you might consider just reencoding the End Credits at a lower bit rate (or a higher Quant) and splicing them in.

Hi Manolo,

Thanks for the hints, but I thought Gknot would automagically take care of all this stuff (considering the audio overhead, etc...) to reach the final size ?

And welcome to the forums.

Thank you.

[sillKotscha]

Hi mlmll,


Gknot will only automatically take care of all this stuff when you make sure to automate it... so, did you really checked the box 'calculate frame-overhead'?!! as manono said:
It's in the Interleaving and AV Overhead box (right center) in the Bit Rate Tab.

my solution (it is not a good one ;) ...) you don't have to reencoding the End Credits at a lower bit rate (or a higher Quant), just cut off a little bit of it (about 2-3min of the very end). Do you really need these 2 or 3 minutes??

regards Sill

[mlmll]

Originally posted by sillKotscha
Gknot will only automatically take care of all this stuff when you make sure to automate it... so, did you really checked the box 'calculate frame-overhead'?!!

Yes, I checked "calculate frame-overhead" together with "1x vbr-mp3" ass doom9's guide says...

Cheers,

[manono]

Hi-

Gee, I've never gotten an oversized file when using the DivX 3.11 codec. Perhaps DivX5 is harder to figure. Did you change any settings between the first and second passes?

In any event, I make my 2 CD rips to come out to 1370 MB because it's then easier to split at an appropriate place.

[llemor]

@mlmll:

I have this problem before, but when I set the psychovisual enhancement of DivX5 to light or normal, I always got 2~3 MB less than the target size. Maybe you have to try it.

[theReal]

I never got more than +/-1MB on a filesize of 700MB with Divx5, but I also don't use psychovisual settings.

btw. can't you just overburn? 3.5MB oversized is nothing, every 700MB CDR can take that much!

I have never seen or heard of any problems with picture being too red using Divx 5 or Gknot. I think colors are better than in Divx4, if there is any difference at all.