splitting and rejoining

[tripex]

Hi

How can i split a movie with ability to watch the parts and rejoining them together so "fc /b original.avi rejoined.avi" says no differences???

Is there a way to do this without pure file splitting?

Ciao
Andreas

[Swede]

Well, not if you're thinking of joining them by ex. copy /b part1.avi+part2.avi full.avi.
You have to choose between either just split the file and join them *before* you can look at them or split the .avi into two 'standalone' .avi's, which you then can watch separately but if you want to join them you must you some tool (ex. vDub).
The reason for this is that the .avi has got some headers up front and an index at the end.

Of course when you've rejoined them in vDub the rejoined.avi will be just like, or at least *very* like :) the original.avi

[movmasty]

seems that vdub doesnt strips the index of the first chunk when joining,
so you have to do manually, by deleting at least the last frame of it

[Swede]

I don't know where you got that stupid idea from, but it sure wasn't testing. When vDub appends two, or more, avi's it doesn't just copy the files and therefore also the parts index-chunks.
If your statement where true then just about *every* rip using 2 parts, one main and one credit, would have a couple Mb's of vasted junk-space.

Can you test this before you say something or tell me that I'm wrong and *how* you managed to get this erraneous behavior.

[tripex]

Is there any other splitter/joiner which can do this exactly or is this a technically impossible problem? At this time i use a normal file splitter but of course i can't watch the parts.

Ciao
Andreas

[movmasty]

the "join bug" of vdub is very note,its present at least until vers 145,i also just emailed Lee for this.
there was web sites and guides dedicated to it,saying to cut at least 10 frames,ime 1 is enough.

Index is smaller than 2mb,and could be that vdub leaves just a small part of it.

a word on how the bug works,
i use often the join in direct copy,since i never do a movies in one step,but always in 3/4 parts,
not always but almost in half cases the joined part get messed up sometime after the join point,
maybe credits are too short for the bug to manifest.

and remember, ideas are never stupid, persons are.

[Swede]

I've done a *lot* of joins and never had this problem. Perhaps then it's because the joins have mainly been movie/credits but I've tried today to do a couple of tests, at about 50/50, and they've all worked fine. (They're all in Direct copy)

> there was web sites and guides dedicated to it
Could you direct me to one? I would like to see what they say.

> Index is smaller than 2mb
For about half a CD, yes. A complete movie's got around 4 (depending on how you interleave the audio)

> and remember, ideas are never stupid, persons are.
Right...

[movmasty]

well,dunno about you,but my directory system is like a jungle,
now ill try to do a search
in bookmarks and documents
what a hard work are you proposing to me...

i last noticed the bug in 1.4d, dunno about 1.45 and further
but i didnt read about it in whats new.

this in the vdub faqs..........

Can I join two video files with VirtualDub?
...can also be used to join two separate clips... and all but the last are cleanly SLICED...so you will have to TRIM the end of the first clip clean

[movmasty]

found something

http://nickyguides.digital-digest.com/join-split-avi.htm

[Swede]

I've read through Nickys guide three times and I can't see any reference to this 'bug'.. Is it just me being blind?

Oh, and about the vDub FAQ you mentioned, it's about audio/video out of sync, it has *nothing* to do with vDub not removing the idx-chunk as you claimed.

Got any more?

[movmasty]

i didnt say vDub not removing the idx, but peraphs
since joined movies didnt work

in that page of Nickys guide is said about cut 15 frames,
there too for audio sync, but seems to be something more

the fact that i dont find a link of more than 1 years ago doesnt mean that prob didnt exist
if you never encontered it good for you.

[Swede]

This has become a too long thread but:

i didnt say vDub not removing the idx, but peraphs
When reading your first post:
seems that vdub doesnt strips the index of the first chunk when joining,
I would say that its *just* what you said.

and:
the fact that i dont find a link of more than 1 years ago doesnt mean that prob didnt exist
My final word here is don't give advice that's about a year old and you're not sure of, at least not without testing!

[movmasty]

i said "seems"....that means "maybe is so"..maybe the reason is another

and the "bug" was quite note, also discussed in the old doom board

and in the whats new of vdub isnt said it has been fixed

MAYBE...was just a little thing,like a compiling error,then silent fixed...
maybe not
maybe ill find that article...maybe not...