From VOB to AVI, simplify please!

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From VOB to AVI, simplify please!

Postby Senvae » Fri Feb 27, 2009 5:17 pm

Ok I was reading into the Guides on this website on how to get the best possible quality image from my DVD, and I realized I didn't have the time or the energy to take a Video College Course online.

So can anyone simply for me the steps to take from the ripped VOB footage to the end of having a good clean AVI to work with? I just want to know which buttons to press, that's all, I don't want to know the science behind it. I only do AMVs for fun, not for winning contests, but I have a 25.5" Sumsung monitor with 1920x1200 resolution so it would be great if my AMVs could at least have a good quality image.

If it helps, the DVD in question I want to rip is Ah! My Goddess (the movie)(DVD), and my OS is Vista Ultimate 64bits.

Please help.
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Re: From VOB to AVI, simplify please!

Postby Zarxrax » Sat Feb 28, 2009 11:44 am

1. Load vob into DGindex. Save .d2v file.
2. Open .d2v through avisynth with MPEG2Source command.
3. IVTC the footage with avisynth, and resize it to the correct aspect ratio (640x480)
4. Open you avisynth script in virtualdub(mod), and save it as a lossless lagarith file.
5. Toss your lossless footage into your editing software.
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Re: From VOB to AVI, simplify please!

Postby Zarxrax » Sat Feb 28, 2009 11:45 am

Oh, or I guess you could just watch these: http://www.animemusicvideos.org/guides/zarxfag/
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Re: From VOB to AVI, simplify please!

Postby Qyot27 » Sat Feb 28, 2009 2:34 pm

It was an anamorphic widescreen movie, so the 640x480 in the above instructions will actually be 848x480 (you could do 640x480 if you resized to 640x352 and added letterboxing, but generally something like that is unnecessary). I'm also not entirely sure, as I haven't worked with the AMG! movie in ages, but I think it can also possibly be force-filmed.
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Re: From VOB to AVI, simplify please!

Postby Zarxrax » Sat Feb 28, 2009 6:36 pm

Ah, I thought he was talking about the OVA.
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Re: From VOB to AVI, simplify please!

Postby Senvae » Sun Mar 01, 2009 4:08 am

848x480? That seems like an odd size, but maybe it explains some of the problems I've been having with exporting widescreen footage from Adobe Premier Pro CS3, it would always come out with black bars on the sides and top/bottom, even if my footage was widescreen to begin with. I thought changing the project settings to export square pixels would solve it.... it seems to work.... maybe I'm just dumb.
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Re: From VOB to AVI, simplify please!

Postby Qyot27 » Sun Mar 01, 2009 11:13 pm

Senvae wrote:848x480? That seems like an odd size, but maybe it explains some of the problems I've been having with exporting widescreen footage from Adobe Premier Pro CS3, it would always come out with black bars on the sides and top/bottom, even if my footage was widescreen to begin with. I thought changing the project settings to export square pixels would solve it.... it seems to work.... maybe I'm just dumb.

16:9 dimensions (848 = 16x53, 480 = 9x53.3333....), using square pixels. Technically, true 16:9 at 480 height would require a horizontal resolution of 853.3333...., but 848 is a mod16 resolution, and 853 or 854 aren't.

You need to make sure that Premiere's Project Settings match your Export Settings, and that both match the footage itself. That should clear up most of that problem. In other words, as the AMG! movie is anamorphic widescreen, it doesn't use square pixels when it comes straight off the disc (I'm assuming this is the NTSC version that Pioneer released back in 2001). Since square pixels are easiest to deal with, you resize the footage to 848x480. Make sure that both Project Settings and Export Settings are set to 848x480, and Square Pixels. That should take care of it.
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Re: From VOB to AVI, simplify please!

Postby Senvae » Mon Mar 02, 2009 8:15 am

Qyot27 wrote:
Senvae wrote:848x480? That seems like an odd size, but maybe it explains some of the problems I've been having with exporting widescreen footage from Adobe Premier Pro CS3, it would always come out with black bars on the sides and top/bottom, even if my footage was widescreen to begin with. I thought changing the project settings to export square pixels would solve it.... it seems to work.... maybe I'm just dumb.

16:9 dimensions (848 = 16x53, 480 = 9x53.3333....), using square pixels. Technically, true 16:9 at 480 height would require a horizontal resolution of 853.3333...., but 848 is a mod16 resolution, and 853 or 854 aren't.

You need to make sure that Premiere's Project Settings match your Export Settings, and that both match the footage itself. That should clear up most of that problem. In other words, as the AMG! movie is anamorphic widescreen, it doesn't use square pixels when it comes straight off the disc (I'm assuming this is the NTSC version that Pioneer released back in 2001). Since square pixels are easiest to deal with, you resize the footage to 848x480. Make sure that both Project Settings and Export Settings are set to 848x480, and Square Pixels. That should take care of it.


Thanks, that's what I was planning to do, but I thought the widescreen res was something like 600x300 (roughly, don't remember the exact numbers). I will try that 848 resolution then.

I just wanted to know now, I am about to make the DG index for AMG, do I need to make an index file for each individual VOB files?
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Re: From VOB to AVI, simplify please!

Postby LivingFlame » Mon Mar 02, 2009 2:52 pm

You should be able to index multiple VOBs in one file. Just be sure they're all the same resolution, interlacing method, etc.
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Re: From VOB to AVI, simplify please!

Postby Qyot27 » Mon Mar 02, 2009 7:59 pm

Well, I use SmartRipper, so I usually set it to output all contiguous content to one file and then index that (even on the non-encrypted DVDs I have). So in other words, an entire movie or episode is in one file, but seven episodes are in seven separate files.

If you want to do it that way, then you can use SmartRipper to do it after ripping the disc with DVD Decrypter. Just point SmartRipper at the actual VIDEO_TS folder on your hard drive (or the main directory that holds VIDEO_TS). There's other options involved, but it's straight-forward enough that it doesn't take much explaining. Just look around the Settings a little.
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Re: From VOB to AVI, simplify please!

Postby Qyot27 » Mon Mar 02, 2009 8:14 pm

Senvae wrote:Thanks, that's what I was planning to do, but I thought the widescreen res was something like 600x300 (roughly, don't remember the exact numbers). I will try that 848 resolution then.

640x352? 720x400? 768x432? 1280x720? 1920x1080? There is no universal 'widescreen' resolution, since 'widescreen' (or 16:9) only refer to the basic shape of the image - i.e., that it's much more rectangular than square. So the dimensions can change based on what you want either your horizontal or vertical resolution to be.

Generally, a 'Letterboxed' DVD is 4:3 (Fullscreen), but the video has been proportionally resized to fit in a 4:3 frame and then black mattes are added to the top and bottom; usually the actual picture is 640x368, 640x360, 640x352. 'Anamorphic widescreen' (Enhanced for 16x9, etc.) DVDs, like AMG!, are stored in the same 720x480 dimensions, but they've been horizontally squished because it makes compression more efficient, and the file has a flag telling the player that it's supposed to be 16:9. On playback, the DVD player basically resizes it to 848x480. Even 4:3 content has those flags, since 720x480 is actually 3:2 ratio, and to display the content correctly it needs to contract the image back to 640x480.

The 'mod16' thing I mentioned before is simply an easier way of saying the dimensions are multiples of 16, since adhering to mod16 resolutions helps with the compressibility of video in formats like MPEG-1/2, MPEG-4 ASP (Xvid), H.264, etc.
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Re: From VOB to AVI, simplify please!

Postby Senvae » Mon Mar 02, 2009 9:23 pm

Ok I was trying to open my avisyth file in Virtual Dub Mod this afternoon and I'm getting an error message: Avisynth open failure: Script error: there is no function named "MPEG2Source" (C:\my location\bla bla bla)

This is my exact script in my avs file:

MPEG2Source("C:\Users\Senvae\Videos\MainMovie\AH_MY_GODDESS\VIDEO_TS\AMG.d2v", cpu=6)

This is exactly like it was demonstrated in Zarxfag's video #3

What did I do wrong?
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Re: From VOB to AVI, simplify please!

Postby LivingFlame » Mon Mar 02, 2009 10:14 pm

Be sure that there is a copy of the file DGDecode.dll in your AviSynth plugin folder. The file itself should also be in DGIndex's folder (C:\Program Files\AMVApp\DGMPEGDec\DGDecode.dll on my system). Just copy and paste it into AviSynth's plugin folder and it should work.
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Re: From VOB to AVI, simplify please!

Postby Senvae » Tue Mar 03, 2009 9:11 am

Right on, now it works, thanks LivingFlame!
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Re: From VOB to AVI, simplify please!

Postby Senvae » Tue Mar 03, 2009 4:42 pm

Ok, now the VirtualDub crashes when I try to do the de-interlacing scripts. Doesn't seem to agree with the TFM line. I tried to see if I had a plugin for that but I couldn't find it. Little help please!
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