De-interlacing DivX by converting to AVI for Prem CS3?

dazza1008 · Post by **dazza1008** » Sat Nov 10, 2007 12:57 am

Hi all!
I read a guide on this site, and it explained why interlaced video shouldn't be used for AMVs. (and I've even seen a couple of banners around this site X3). I've downloaded a whole lot of divX raws (and I only have that as a source until the DVD boxset becomes available, I'm not made of money... prob sometime in 2009 @_@). I saw somewhere else that VirtualDub was a good program to convert it. So I opened one in VD, File-save as AVI, and then save.

IT WOULD HAVE TAKEN UP 26 GIGS FOR JUST ONE EPISODE!!!!! @_@

Now I thought 140 gigs was plenty on a computer, at least for me...

I looked at the small new AVI converted file (I stopped converting it), and it looked kind of blurry.

So my questions are, what is the most HDspace-efficient way of converting DivX to whatever it's supposed to be converted to, and is there anything else you would recommend? Converting one, taking the clips, and deleting it again is not an option I would consider.

Not so important questions:
Is VirtualDubMod better than VirtualDub for this?
I just did a clean install, and so had to download divX to see the files again... before I did that, I could only hear the mp3 audio in Prem Cs3, and after, I could see the video but not hear any audio. I can hear mp3 audio files in Prem Cs3. Also, after I installed the codec, the files appear upside down in Windows Media player. It always tries to download the codecs but fails. It looks normal in VLC player and CS3 (thank heavens) ....whatever
And btw that small file I converted to proper AVI (???) using virtualdub - I don't hear the audio in CS3. Not that I need it... yet.

Thanks for any help!

dazza1008 · Post by **dazza1008** » Sat Nov 10, 2007 1:26 am

CRAP!!! I CAN'T EDIT THE POST!!!

I found a site which explained how to de-interlace DivX, using VirtualDub and AVIsynth.

http://www.100fps.com/

So now I see that it's not a simple conversion to another file format... have to separate the 25 frames into 50 fields and save it in a progressive file format. It's all becoming clearer, but if you've answered the first post, I'd like to hear it as well.

BUT MY DIVX'S ARE 23 FPS!!!! @_@ Is this going to stuff me around??? BTW Adobe CS3 is set to 29.97 fps. OK, or should reduce to source? (or increase if I convert 2x23 = 46fps (progressive))

Should I convert my original divX's to a higher frame rate before deinterlacing? (actually, that may make it completely crap, but I don't know)

Purge · Post by **Purge** » Sat Nov 10, 2007 3:18 am

are you sure that your files have interlace artifacts?

dazza1008 · Post by **dazza1008** » Sat Nov 10, 2007 6:40 am

Purge wrote:are you sure that your files have interlace artifacts?

Well, yes... when I view 100% in Premiere it looks interlaced (horizontal lines). Plus I think DivX is supposed to appear like that. Do you think Premiere automatically compensates for that? (I haven't read the tutorial ^^;;;;)

Scintilla · Post by **Scintilla** » Sat Nov 10, 2007 7:01 am

dazza1008 wrote:
Purge wrote:are you sure that your files have interlace artifacts?
Well, yes... when I view 100% in Premiere it looks interlaced (horizontal lines).

Even if you set the field order in your project settings to "Progressive (No Fields)"?
And you'll also want to change the project frame rate from 29.97 to match your source clips.

dazza1008 wrote:Plus I think DivX is supposed to appear like that.

No, it's not. Every DivX-encoded digisub I've ever seen has been at 23.976fps, progressive.
It's <i>possible</i> to encode interlaced with DivX, but it's certainly not required.

dazza1008 · Post by **dazza1008** » Sat Nov 10, 2007 8:06 am

I was hoping you'd give me an answer! X3 (you were really helpful with another post)

Scintilla wrote:Even if you set the field order in your project settings to "Progressive (No Fields)"?
And you'll also want to change the project frame rate from 29.97 to match your source clips.

Um, I wasn't sure what you were talking about... I hadn't exported the clip...
but was playing with it in Prem. It is interlaced, but luckily right-clicking (on every clip 0_0 and selecting "field options", then "always deinterlace" worked.)
But when I exported, I saw a "deinterlace" option for video, so I guess you don't need to deinterlace the clips - this does it all.
The Compressor=NTSC setting didn't let me change the frame rate, but I changed that to DV (24p Advanced) and it automatically changed to 23.976

So I can use DivX footage! (for sanity's sake, and since I don't have DVD and unlimited HD space) Thank you!

Actually, unfortunately... I exported the clip, and could still see the lines. But in the program it appears fine if deinterlace is selected from "field options"
And when I imported the saved stuffed up file, it wouldn't deinterlace at all. Any ideas?

Scintilla wrote:
dazza1008 wrote:Plus I think DivX is supposed to appear like that.
No, it's not. Every DivX-encoded digisub I've ever seen has been at 23.976fps, progressive.
It's <i>possible</i> to encode interlaced with DivX, but it's certainly not required.

I guess I'm just unlucky. X3 It was definitely interlaced.

//one very happy camper

P.S. Any hints on why I can't hear audio? (can hear mp3, and could hear the audio of the files before I got the divX codec)
P.P.S Do you think AMV org would allow a 3 gig video? X3 Do I use VirtualDub to convert to divX, or is mp4 better? Thanks.
[/quote]

BasharOfTheAges · Post by **BasharOfTheAges** » Sat Nov 10, 2007 11:08 am

dazza1008 wrote:So I can use DivX footage! (for sanity's sake, and since I don't have DVD and unlimited HD space) Thank you!

Sure, you can use whatever you fell like - we're not going to bust down your door and turn off your computer to stop you. It still has the chance of randomly breaking and corrupting your project file like it always has had - some people don't encounter that until after they do a few videos... or until they spend a lot of time on one and are just about to export.

dazza1008 · Post by **dazza1008** » Sat Nov 10, 2007 3:55 pm

BasharOfTheAges wrote:
dazza1008 wrote:So I can use DivX footage! (for sanity's sake, and since I don't have DVD and unlimited HD space) Thank you!
Sure, you can use whatever you fell like - we're not going to bust down your door and turn off your computer to stop you. It still has the chance of randomly breaking and corrupting your project file like it always has had - some people don't encounter that until after they do a few videos... or until they spend a lot of time on one and are just about to export.

But is there an alternative? Can 37 episodes fit on 110 gigs? Do you know a way?

Qyot27 · Post by **Qyot27** » Sat Nov 10, 2007 5:13 pm

Make clips in HuffYUV (or Lagarith) or import via an AviSynth script.

dazza1008 · Post by **dazza1008** » Sat Nov 10, 2007 6:46 pm

Scintilla wrote: Even if you set the field order in your project settings to "Progressive (No Fields)"?
And you'll also want to change the project frame rate from 29.97 to match your source clips.

Scintilla, my apologies... I had the original project setting on startup to NTSC interlaced, for some reason... selecting DV fixed that. Although it's refusing to save the divX files, so I might head over to the Premiere forum section for that... (or convert from divX to mp2 which is DVD format)

Qyot27 wrote:Make clips in HuffYUV (or Lagarith) or import via an AviSynth script.

I can't find an answer on how large each episode would be saved in HuffYUV, but the Read <a href=http://www.a-m-v.org/guides/avtech31/>ErMaC & AbsoluteDestiny's Friendly AMV Guides</a> guide (er, I think it's the first one in the guides section of this site) said it wasn't good for working with in real time since it takes a long time to decompress.
With the AVISynth I have no idea what you're talking about - you mean I can still have DivX source files that don't stuff up as much? Is this a fake AVI wrapper thing I've been hearing about?
The main thing is that the project can reliably export.
Thanks.