Pixelation Problem...

CCChang · Post by **CCChang** » Sat Dec 30, 2006 12:31 pm

THE SEED wrote:I just want check first so that I don't get it wrong months later...

How do you deinterlace on VDub, and also, how do you like set the settings for the clip in VDub like make something that's 640x480 to 720x480, 24 frames to 30 frames, etc?

And also, do I have to always deinterlace? Or just for certain clips (like, for a certain anime, do I have to deinterlace it, and not have to deinterlace it for another)?

Willen · Post by **Willen** » Sun Dec 31, 2006 7:01 am

THE SEED wrote:
THE SEED wrote:I just want check first so that I don't get it wrong months later...

How do you deinterlace on VDub, and also, how do you like set the settings for the clip in VDub like make something that's 640x480 to 720x480, 24 frames to 30 frames, etc?
And also, do I have to always deinterlace? Or just for certain clips (like, for a certain anime, do I have to deinterlace it, and not have to deinterlace it for another)?

I use AviSynth for manipulating footage instead of using VirtualDub's built-in functions. But here's a quick primer: load the video into VDub. Choose Video in the menu and select Full processing mode. Go back to Video and select Filters... (CTRL-F). Click on the Add... button and choose the filter you need from the list. Adjust the parameters as needed.

Using AviSynthis recommended since the number of available filters for it is much greater than the number of available VirualDub filters. Plus, AviSynth is infinitely more tweakable (and thusly, more powerful). I'm not sure if there is an available function for VirtualDub to change or adjust the framerate of a clip, and I'm pretty sure the deinterlace filter it has just deinterlaces and doesn't do inverse telecine (IVTC).

As for deinterlacing, you don't have to always do it, but it's highly recommended, especially if you are going to do clip speed changes in your editing. Generally, for DVD footage, you need to deinterlace since videos are stored on DVDs as interlaced, even if the the MPEG-2 encoding was done as progressive. If you aren't sure, go frame by frame through the footage in VDub and look for interlacing (see CrackTheSky's reply for the link to the examples).

If you are using non-DVD footage, you may or may not (usually not) need to deinterlace. Most of the non-DVD anime I've encountered have been deinterlaced (not always correctly, but deinterlaced nonetheless). Very rarely, you'll stumble across something that is interlaced, in which you have to treat it similar to interlaced DVD footage.

Qyot27 · Post by **Qyot27** » Sun Dec 31, 2006 7:35 am

Willen wrote:I'm not sure if there is an available function for VirtualDub to change or adjust the framerate of a clip, and I'm pretty sure the deinterlace filter it has just deinterlaces and doesn't do inverse telecine (IVTC).

Video->Frame Rate (and there is an inverse telecine function in here, at the bottom - I used it on a couple of videos; they didn't turn out too bad, but AviSynth can do it better, especially when using TFM).

Willen · Post by **Willen** » Sun Dec 31, 2006 8:09 am

Qyot27 wrote:
Willen wrote:I'm not sure if there is an available function for VirtualDub to change or adjust the framerate of a clip, and I'm pretty sure the deinterlace filter it has just deinterlaces and doesn't do inverse telecine (IVTC).
Video->Frame Rate (and there is an inverse telecine function in here, at the bottom - I used it on a couple of videos; they didn't turn out too bad, but AviSynth can do it better, especially when using TFM).

Aha! I only use File, Streams, and Tools (for the Script Editor). Everything else is done through AviSynth scripting.

Thanks for the heads up!

CCChang · Post by **CCChang** » Sun Dec 31, 2006 11:55 am

Willen, I did what you said...but...

IT FLIPPING HUGE!

Like I just took about a 3 minute extract, and it was like 3 gig!

Am I doing something wrong? Or is there a way to shrink the size in VDub?

BasharOfTheAges · Post by **BasharOfTheAges** » Sun Dec 31, 2006 1:49 pm

That does sound like it's around the correct file size. What's the resolution of the video?

CCChang · Post by **CCChang** » Sun Dec 31, 2006 3:08 pm

BasharOfTheAges wrote:That does sound like it's around the correct file size. What's the resolution of the video?

720x480

But I'm gonna like run out of room if all my clips are that size.

Surely, there must be something I'm doing wrong...

And I've put the deinterlace filter on too, if that's what's causing it.

BasharOfTheAges · Post by **BasharOfTheAges** » Mon Jan 01, 2007 2:51 am

no, losless compressed or uncompressed video is about that big. I have a 200GB HDD dedicated to AMV work. Doing it right often takes space.

CCChang · Post by **CCChang** » Mon Jan 01, 2007 11:30 am

...Right, I've given up on my current problem with the clutter pixels now.

New problem, and with everyone telling me different stuff, I'm confused as hell. Seriously, I'm a total noob at this extreme clip extraction stuff, so please, and I want everyone to tell me the best way to do this.

I'm using VDub, and I've read the guide with little understanding of what I need to do and weither I have to.

So please, answer me this in the clearest and understandable way possible:

1. How can I tell if something is interlaced?
2. If it is interlaced, do I have to deinterlace it?
3. Do I always have to edit deinterlaced clips?
4. When resizing in VDub, I get several options. Please could you tell me which ones to go for if 1) I want it to be 640x480, and 2) 720x480.
5. Should I compress it? And with what codec?
6. Should I change the frame rate of my clips from 23.98 something to something like 24?
7. If I edit interlaced material, what problems might I encounter? And how to deal with it?
8. My clips will be huge if I VDub it all, so really, do I have to VDub everything before I edit it?

Many thanks in advance.

CCChang · Post by **CCChang** » Mon Jan 01, 2007 11:56 am

I got another problem now...

MY CLIPS AIN'T SHOWING ON PREMIERE PRO!

What I mean is this...

Like, I just installed a new version of DivX...which unfortunately for some reason causes my clips to not show. Like, you can hear the sound, just not see the footage. It's like it doesn't support it for some reason, but it still plays normally (sound and video) when I'm watching it on my media player (basically, what I'm saying is that the premiere pro for some reason now won't support the video, but will play the sound. But when watching it normally on windows media player, it plays both normally).

Anyone know why this is happening? And what I can do (I can't downgrade as the older version is no longer available)?

NOTE: Interesting enough, I imported some Naruto episodes from two subbers. Gotwoot manage to play normally, while DB didn't, so if that helps you answer question in anyway.

And please, also answer the questions above if you can. Sorry if I'm a total noob at this, but I didn't know there was so much people on this site do to ensure they have perfect editing conditions.