The aspect ratio on my ripped footage is different

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The aspect ratio on my ripped footage is different

Postby sasuke2468 » Sat Jun 10, 2006 1:54 am

I made an amv and after rendering i noticed that the aspect ratio on my evangelion clips where much smaller then my fma or karas clips, how can i make it so all my footage is the same aspect ratio?
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Postby Purge » Sat Jun 10, 2006 2:09 am

?????? :?: :?:

what program are you using and did the clips have the correct aspect ration before the render.
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Postby sasuke2468 » Sat Jun 10, 2006 2:25 am

I'm useing vegas video and they wheren't changed during rendering, they're different from eachother before I noticed while watching the eva dvd that the ratio waws smaller even when i pop'd it in my comp and watched it through wmp
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Postby Willen » Sat Jun 10, 2006 8:10 am

Which Eva series is this? If it is the US Manga Ent. D&R or EoE DVDs then you might be noticing the widescreen letterboxing used on the release. If you have the Japanese R2 Movie DVDs, then they are anamorphic 16:9 like the Karas DVDs and the Fullmetal Alchemist Movie DVD (which aren't out yet).

If this is the NGE TV series you are using then there should be no problems since it is also 4:3 like the Fullmetal Alchemist TV series. Well, then you would have problems with the Karas footage since it is supposed to be 16:9 anamorphic widescreen.

I'll need a full list of your sources to properly give you advice on how to fix your problem. Here are the possible sources from the available R1 DVDs:

Neon Genesis Evangelion TV series (ADV): 4:3
Neon Genesis Evangelion: Death and Rebirth (Manga Ent.): 16:9 letterbox widescreen
Neon Genesis Evangelion: End of Evangelion (Manga Ent.): 16:9 letterbox widescreen
Fullmetal Alchemist TV series (Funimation): 4:3
Karas OAV series (Manga Ent.): 16:9 anamorphic widescreen

Japanese R2 DVDs (if different):

Neon Genesis Evangelion: Movies (Japan R2): 16:9 anamorphic widescreen
Fullmetal Alchemist: Shanbara wo Iku Mono (Japan R2): 16:9 anamorphic widescreen


(If you need an explanation of some of these terms, click here for letterboxing, here for anamorphic widescreen, and here for a detailed technical explanation of how to identify widescreen footage and how to handle widescreen footage when using DVDs.)

Crash course in Aspect Ratios 101

I'm going to make an assumption that you are using the Eva movies as footage since the TV series wouldn't look "smaller" compared to the rest. Now, the question I have to ask, is this video going to be widescreen (16:9) or standard (4:3)?

This is important because since you are using Karas as a source, assuming that this is from the R1 DVDs, it is 16:9 anamorphic widescreen footage and to make it look correct in a standard 4:3 aspect ratio video will entail cropping (cutting the sides off to make it 4:3) or letterboxing it (adding black bars to the top and bottom to make it 4:3). Also, the Eva movies are 16:9 letterboxed widescreen so technically it is 4:3 and you can leave it alone, but if you want to get rid of the letterboxes (the black bars), you will also need to crop the video (top and bottom to lose the LBs and the sides to make it 4:3, and its gonna make it look somewhat crappy after resizing). The Fullmetal Alchemist footage then will look a bit out of place because it will be fullscreen.

If you decide to make it 16:9 widescreen, the Karas footage is OK. The Eva footage will need to be trimmed of the letterboxes (crop top and bottom about 60 pixels each, then resized) and the Fullmetal Alchemist footage is also gonna have to lose some of the image top and bottom to make it 16:9 without stretching the image (same amount as the Eva footage, then resized).

You are now asking why do I have to do all of this, isn't all the footage the same resolution of 720 x 480? Yes, but now this part is pretty important, 720 x 480 is not 4:3 aspect ratio nor is it 16:9 aspect ratio. Correct 4:3 video is 640 x 480 and correct 16:9 is 848 x 480. The explanation is very technical, and it can get even more technical.

I'll leave you with a link with some pics showing why you'll probably need to resize footage to 640 x 480 or something similar:

http://www.animemusicvideos.org/phpBB/v ... hp?t=65156

I'm working on a Mini Illustrated Guide to Aspect Ratios to reference until EADFAG or whatever it eventually gets called is updated.
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Postby sasuke2468 » Sat Jun 10, 2006 5:27 pm

Wow thank you Willen. Yes the eva footage was End of Evangelion 16:( LETterbox widescreen and i used the Karas series that jus came out in like may or april... andthe fma tv series.. dang i shoulda left it out.... I also used the chrno crusade tv series but that's the same as fma. And this amv is being made for the anime expo contest >.> funny i git this problem a week before i have to hav it in the mail... XD So they're rules say its got to be in 720 x 480 so that means 16:9 is the way i go righ ... so my karas is fine, but that also means i hav to crop my eva... yea... it does look crappy... and then crop fma and chrno up a bit to reach 720 x 480 did i understand all that correctly?
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Postby Willen » Tue Jun 13, 2006 3:37 am

Just make sure that your project settings are 16:9 if you are going that route. Also, I'm not too sure how Anime Expo will handle 16:9 widescreen material. I know most conventions are only setup for 4:3 footage so you will probably have to contact the AMV coordinator to find out what their recommendation is. I think many people will add some letterboxes to the AMVs they submit if they know the equipment being used cannot handle 16:9 footage correctly.

Ironically, it might be better for you to leave the Eva footage alone at 720 x 480. Then add 30 pixels of black top and bottom to the Karas footage (that will make it 720 x 540) and resize it to 720 x 480. For the rest of the footage, I would crop 60 pixels off the top and the bottom, then add 60 pixels of black to replace what was cut off to make the final footage 720 x 480. You would have to treat the video as 4:3 in your project settings and when you encode MPEG-2 (if that is how you are going to submit).

Personally, I would do everything as 16:9 widescreen, taking off 60 pixels top and bottom of everything except the Karas footage. Then resize everything to 720 x 480. Create a new project with 16:9 widescreen properties and edit away. Export it when finished as Uncompressed RGB, Huffyuv, or Lagarith. Using AviSynth, add 30 pixels to the top and the bottom of your video to make it 720 x 540, then resize to 720 x 480. Load the AVS file into TMPGEnc or your favorite MPEG-2 encoder as a 4:3 video and convert away. This will ensure that your video will be played back without any stretching, although you will have those black bars and a shorter-height video. Then, for a XviD distro copy, you can load the same video file, except this time you resize it with AviSynth to either 848 x 480 (huge!), 640 x 360*, or split the difference and go with 720 x 400 (the video will be a tiny bit stretched). (*Or, if you want a really good encode, resize to 640 x 360 then crop 4 pixels top and bottom and encode as 640 x 352.)
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Postby Keeper of Hellfire » Tue Jun 13, 2006 4:05 am

I wonder why one resolution for 16:9 footage with square pixels is always overlooked. It's 768x423, being exact 16:9 and both dimensions multiples of 16.
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Postby Willen » Tue Jun 13, 2006 5:14 am

Keeper of Hellfire wrote:I wonder why one resolution for 16:9 footage with square pixels is always overlooked. It's 768x432, being exact 16:9 and both dimensions multiples of 16.


Fixed, and I suppose it would require a bit more resizing than just 848x480 or 720x400 which is just resizing one dimension from 720x480 footage. Although 768x432 seems to work better with PAL edited footage. :wink:
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Postby sasuke2468 » Wed Jun 14, 2006 8:10 pm

Awsome thank you! i'ma go do that now and if i run into any probs i'll let u kno XD
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Postby MarlinBeta » Thu Jul 20, 2006 7:19 pm

I'm having a similar problem with an AMV I'm working on that was inspired by the AMV Hell series. Basically, I'm splicing together several different anime sources of 4:3 and 16:9 aspect ratios into a single AMV, just like sasuke2468. However, I'm stuck using Windows Movie Maker because that's all I have (as far as my computer RAM and wallet can handle at least). Am I going to have to use AviSynth to correct the problem? I can't find a letterbox setting or anything of the sort in Windows Movie Maker and most of the other "how to make AMVs" don't have information on how to maximize the performance of Movie Maker.
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Postby Qyot27 » Thu Jul 20, 2006 7:54 pm

VirtualDub's resize filter can do it. Just make sure that the borders (and by extension, the viewable area) are both multiples of 16 - i.e. for true 16:9 footage, get the viewable area to 640x352 and add 64-pixel borders to the top and bottom. The explanation for this (because by VDMod_Resize's calculations it would normally be 640x368) is because having the border between letterbox and actual footage in the middle of a macroblock causes garbage at the edges. A height of 368 would make even borders on a 480-height video be 56 pixels each - 3.5 16x16 macroblocks, which causes problems. 352 makes it an even 4, and solves that issue (it also technically makes the image 9:5 ratio instead of 16:9, but most people can't really tell the difference).

The regular resize filter handles this by enabling the Letterboxing option, just input the intended height.

Example:
Image

I don't know whether WMM natively lets you work with 640-width images, though (actually, not so much that it won't let you work with them, but moreso whether it'll let you export them, since it's always a good idea to export at the dimensions of your source rather than let the editing program do any resizing - that's the job of postprocessing software). If you need them in 720-width, just change the width value on the top.

But generally, yes, AviSynth would be the easier option, as it would only require a script like, say:
Code: Select all
AVISource("test.avi").LanczosResize(640,352).AddBorders(0,64,0,64)


And then you'd just have to export that from VirtualDub as another AVI (or make a fake AVI with whatever tool does that, but I generally distrust stuff like that).


All of that is assuming you're working with anamorphic footage rather than video that's already letterboxed.
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Postby MarlinBeta » Thu Jul 20, 2006 8:08 pm

Yeah. I'm actually working with anime raws ripped from Japan TV, so I'm not sure if the original widescreen video is true 16:9, however I've been editing those "wide" anime clips in the 16:9 format and it all seems to be working fine. I've worked with video editing software before (mostly movie maker) but I've never attempted to mix widescreen and full screen. This will be an interesting endeavor for me. Any other advice?
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Postby Qyot27 » Thu Jul 20, 2006 9:35 pm

Not really, as far as WMM is concerned. I don't use it, and have next to nil experience with it.

Seeing as how these are RAWs you're working with, it may be possible that they're billed as 120fps (or 119.something fps). If that's the case, use the avi_tc utility to remove the null frames, which saves a lot of unneeded frustration. It can be found here:
http://www.missouri.edu/~kes25c/#c3

The reason some RAWs are made as 120fps is because they mix 23.976fps and 29.97fps video, something which AVI doesn't support. Inserting null frames to get the two to match the least common denominator (120, or 119.something) allows those two framerates to be mixed, but that's a pretty nasty hack. VirtualDub, unfortunately, sees those null frames as real frames, and you wind up with more frames than you'd want to (and using Decimate or whatever else to handle it isn't foolproof), which slows down editing and causes other problems. What avi_tc does is completely make it irrelevant by removing those null frames, thus restoring the video to how it should be (although the output will be a single framerate; sections will be slower or faster or whatever, but for editing that kind of stuff doesn't matter).

In addition to that, it would only be to use a lossless codec (like HuffYUV or Lagarith) to edit with. I can't think of anything else.
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