Digital Video Forums  

Go Back   Digital Video Forums > Video File Formats > AVI, DivX/Xvid

Reply
 
LinkBack Thread Tools Search this Thread Rate Thread Display Modes
Old 22 Dec 2002, 06:50 PM   #1
Junior Member
Junior Member
 
MrSnail's Avatar
 
Join Date: Jun 2002
Posts: 45
Default Extra MB from nowhere :/

Hi.

I am trying to convert a dvd to divx using GordianKnot and the 3.11a video codec in 2-pass mode.

I encoded a VBR mp3 and it turned out at 99.0MB - I did this separately as previously when GK was guessing the file size of the mp3 the final avi was under- sized.

I then encoded the video and it came to 601MB. Together they came to 700MB - by selecting both files > properties.

I then muxed (is it called muxing? - combined or whatever ) the audio and video in nandub and it totalled 706MB which is about 4MB over CD limit.

At first I thought it might be the interleaving or something so I tried interleaving the audio every 25 frames rather than every 1 frame, but this made no difference.

I just wondered where the extra data (is overheads the technical term ?) is coming from and what causes it. I don't really want to have to chop any credits off, as I like a full movie (they are already compressed separately in GK)

Thanks very much for taking the time to read this
__________________
If at first you don't succeed, give up.
MrSnail is offline   Reply With Quote
Old 22 Dec 2002, 08:57 PM   #2
Super Moderator
 
UncasMS's Avatar
 
Join Date: Nov 2001
Posts: 9,047
Default

muxing audio and video always requires some additional mb for the frame overhead.
__________________
UncasMS is offline   Reply With Quote
Old 22 Dec 2002, 10:00 PM   #3
Junior Member
Junior Member
 
MrSnail's Avatar
 
Join Date: Jun 2002
Posts: 45
Default

Ah right ok - thanks very much
MrSnail is offline   Reply With Quote
Old 23 Dec 2002, 12:32 AM   #4
Super Moderator
 
UncasMS's Avatar
 
Join Date: Nov 2001
Posts: 9,047
Default

gordianknot for example will give you an idea of the size which will roughly be added (or extracted from the videostream to be created).
UncasMS is offline   Reply With Quote
Old 23 Dec 2002, 08:00 AM   #5
Junior Member
Junior Member
 
MrSnail's Avatar
 
Join Date: Jun 2002
Posts: 45
Default

Oh right ok cool - I'll give that a look
MrSnail is offline   Reply With Quote
Old 23 Dec 2002, 08:52 AM   #6
Super Moderator
 
UncasMS's Avatar
 
Join Date: Nov 2001
Posts: 9,047
Default

4b. should be of help:

UncasMS is offline   Reply With Quote
Old 23 Dec 2002, 09:08 AM   #7
Junior Member
Junior Member
 
MrSnail's Avatar
 
Join Date: Jun 2002
Posts: 45
Default

Yeah wow!

Thanks loads for that - it's all clear now

*MrSnail hugs UncasMS and races off to re-encode with estimated overheads

Thanks again - your help has been greatly appriciated
MrSnail is offline   Reply With Quote
Old 23 Dec 2002, 09:38 AM   #8
Super Moderator
 
UncasMS's Avatar
 
Join Date: Nov 2001
Posts: 9,047
Default

btw: you should give gk + divx5 a try.

i prefer divx5 to divx3!


for some more details on that combo, take a look at this guide, if you like:

http://www.atlandide.net/~uncasms/en...p?page=gordian
UncasMS is offline   Reply With Quote
Old 23 Dec 2002, 09:51 AM   #9
Junior Member
Junior Member
 
MrSnail's Avatar
 
Join Date: Jun 2002
Posts: 45
Default

Ok, thanks for the tip - I'll encode the same dvd to divx 5 and compare the outcomes
MrSnail is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off




All times are GMT +10. The time now is 01:10 AM.

Kirsch designed by Andrew & Austin


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright © 1999 - 2018 Digital Digest

Visit DivXLand   Visit dvdloc8.com