Xvid/Divx to KDVD Results in Different Size?

empag · #1 03-30-2004, 05:51 PM

hi,

i´ve been doing some conversion with some animes one of them is a xvid source one of my others is divx (v5). both of them have a resolution of 640x480.
now i have been able to convert the xvid-files to a kdvd format having only about 250mb files (not including the sound),
but when converting the divx files i get files that are about 600mb large.
for conversion i only used tmpgenc and the kdvd template (full d1) leaving the settings like they are when loaded into tmpgenc (except the resolution which i changed to 4:3 720x576)

why are there such big differences and how can make my divx-files smaller?
the only other difference, except the file-type, is that the xvid-files have smaller bitrate, is that the cause?

hope someobody can help and give some info on this

incredible · #2 03-30-2004, 06:11 PM

Let me assume:
You did just encode the source using TmpgEnc via CQ mode without doing a prediction before????

Prodater64 · #3 03-30-2004, 06:39 PM

Quote:

Originally Posted by incredible

Let me assume:
You did just encode the source using TmpgEnc via CQ mode without doing a prediction before????

@ Inc: Analyze the question, take a look at the posted's number. Do you think that our partner has an idea what prediction is?

@ empag: Give a try to DIKO program. If you have not all software needed, convert it as usualy do, but first use CQMatiq program (search in forum) to obtain filesizes acording to your needs.

empag · #4 03-30-2004, 07:32 PM

well i do know a little bit about that predicion stuff, been doing a bit of reading in this forum. but yeah, i´m still pretty lost with this encoding stuff.
i just thought that it would turn out about the same size, since i´m using the same template, and the sources are almost the same (except xvid divx).
well anyway, i´m gonna have a look at that cqmatic thing, since i´ve already tried diko, which also just gave me a 600mb file. (tmpegenc gave me the 250mb)
also diko didn´t quite work for me, cce crashes a lot and soundfiles sometimes ended up at about 300mb instead of the usual 25

well thanx for ur help u two.
i´ve gotta do some reading on cqmatic

empag · #5 03-31-2004, 06:03 AM

well, just looked at the result of cqmatic, but its over 500mb instead of the 300 i set calcumatic to.
i used the small guide from kyuss i´ve found

http://www.kvcd.net/forum/viewtopic....hlight=cqmatic

i´ve set target to custom and the size to 300.

where did i go wrong here?

Dialhot · #6 03-31-2004, 06:29 AM

Probably nothing wrong. You are just "unlucky". There is no tool 100% accurate when is time to predict the CQ and it's possible that four your source, CQMatic actually fails.

Can you post the log file of CQmatic to see if everything went ok ?

empag · #7 03-31-2004, 12:36 PM

here´s the logfile

Code:

http://www.kvcd.net
CQMatic Version 1.2.06
Copyright Softronex Corporation, 2003.
All rights reserved.
Time: 13:38:13 Date: 03/31/2004
Ready!
Project: C:\Dokumente und Einstellungen\Dro\Eigene Dateien\Video Capture\Naruto - 76.tpr

Creating: CQMatic.tpr


Project resolution: 720x576
Execute.
Movie Time: 24
Average Bitrate: 1635.0
Full Encode mode
Executing Prediction Phase...
Process started at 13:39:48
On 03/31/2004
CQ set for prediction
Setting up initial sampling.
Using CQ of 60.00
Prediction cycle #1
Encoder started...
Process time: 28.27 minutes.
Encoder end.
File size difference  = -75340800.000000
Low fence: 60.000000
High fence: 90.000000
Last CQ = 60.00
Current CQ = 75.00
CQ difference = 15.000000
Using CQ of 75.00
Prediction cycle #2
Encoder started...
Process time: 27.72 minutes.
Encoder end.
File size difference  = -75340800.000000
Low fence: 75.000000
High fence: 90.000000
Last CQ = 75.00
Current CQ = 82.50
CQ difference = 7.500000
Using CQ of 82.50
Prediction cycle #3
Encoder started...
Process time: 28.53 minutes.
Encoder end.
File size difference  = -75340800.000000
Low fence: 82.500000
High fence: 90.000000
Last CQ = 82.50
Current CQ = 86.25
CQ difference = 3.750000
Using CQ of 86.25
Prediction cycle #4
Encoder started...
Process time: 27.17 minutes.
Encoder end.
File size difference  = -75340800.000000
Low fence: 86.250000
High fence: 90.000000
Last CQ = 86.25
Current CQ = 88.13
CQ difference = 1.875000
Using CQ of 88.13
Prediction cycle #5
Encoder started...
Process time: 26.70 minutes.
Encoder end.
File size difference  = -75340800.000000
Low fence: 88.125000
High fence: 90.000000
Last CQ = 88.13
Current CQ = 89.06
CQ difference = 0.937500
Using CQ of 89.06
Prediction cycle #6
Encoder started...
Process time: 26.50 minutes.
Encoder end.
File size difference  = -75340800.000000
Low fence: 89.062500
High fence: 90.000000
Last CQ = 89.06
Current CQ = 89.53
CQ difference = 0.468750
Using CQ of 89.53
Prediction cycle #7
Encoder started...
Process time: 26.87 minutes.
Encoder end.
File size difference  = -75340800.000000
Low fence: 89.531250
High fence: 90.000000
Last CQ = 89.53
Current CQ = 89.77
CQ difference = 0.234375
Using CQ of 89.77
Prediction cycle #8
Encoder started...
Process time: 26.65 minutes.
Encoder end.
File size difference  = -75340800.000000
Low fence: 89.765625
High fence: 90.000000
Last CQ = 89.77
Current CQ = 89.88
CQ difference = 0.117188
Final CQ value is 89.77
Encoding set to Full encode.
Full encode start...
CQMatic complete!
Total minutes of process: 218.42
Process ended at 17:18:13
On 03/31/2004

Dialhot · #8 03-31-2004, 12:48 PM

All your "file size" are negatives so the prediction failed !
(see all hints in the CQMatic downloading thread)

-> use short pathname ! C:\kvcd for instance