DVD2AVI/DGIndex Aspect Ratio Problem (Long/Stretched Faces, etc)

[munkeyman]

I am using the latest version of GordianKnot which uses DGIndex to create the .d2v, but I have tried DVD2AVI as well. Everything works great, except many of my dvdrs are 16x9, and most of them when opened in dgindex/dvd2avi display with an incorrect aspect ratio, therefore causing the output product .avi file to display the same problem. I have searched here and there for an answer or even an acknowledgement of this problem and have yet to find one. I looked to see if there was a particular setting in dgindex that I missed, but there was not. I also tried changing the output aspect ratio in GordianKnot, but all that did was crop the picture, rather than shrink it. I can post screenshots if necessary, but I am sure others have run into this problem. Any ideas/solutions are greatly appreciated.

[Baldrick]

You should crop and resize to correct video size/resolution like 640x360 for 16:9 material with gordianknot. It must be mentioned in some of the gordianknot guides, for example http://www.doom9.org/gknot-basics-xvid.htm

[munkeyman]

I can, but thats not the problem. Even when I crop it, it still has stretched faces, because thats the way dgindex interpreted it.

[Abond]

DGIndex display doesn't respect the AR. This is corrected by avisynth script.

[manono]

I can, but thats not the problem. Even when I crop it, it still has stretched faces, because thats the way dgindex interpreted it.

DGIndex doesn't interpret anything. It shows you exactly how it's stored on the DVD.

Geez. A DVD gets resized by the player, either 4:3 or 16:9. An AVI is usually resized by the person making the backup, before it's encoded. As Abond says, that's what the AviSynth script is for, among other things. Open the D2V that you got from DGIndex in GKnot. Go to the Resolution Tab. Make sure that Input Pixel Aspect ratio is ticked correctly (PAL or NTSC and 4:3 or 16:9). DGIndex gives you that info. Crop away the black, if any. I much prefer using the Pixel Crop. Resize to whatever you want. The Compression test is a great help in determining the proper resolution for your encode. Keep an eye on Aspect Error and try to get it down below 0.5% or so. That may mean cropping a few more pixels into the video. When all done, at the top of the video picture, go View->Resized, and see how it's going to look, everybody looking normal, not stretched, not skinny. That's also the proportion, or the Aspect Ratio, your finished AVI will have. Save the .avs and encode.

[ogluktu]

n/a

[manono]

DGindex says the aspect ratio is 4:3 when the file is actually and really 16:9.

No, it was actually encoded as 4:3. DGIndex is correct. Look, a DVD player usually gets the DAR from the IFOs. It's unusual, but it happens sometimes, that the VOBs can be 4:3, but the IFOs say 16:9. So the DVD plays as it should, but AutoGK, because it relies on DGIndex which in turn gets its information from the VOBs alone, can wind up with bad aspect ratio. Since you say you made the DVD, it's entirely your fault. You're the one that encoded the video as 4:3.

The workaround is to open the IFO or VOBs in AutoGK, go into the Hidden Options (CTRL-F9), check the "Override Input AR" box, and change the AR from 4:3 to 16:9. Then take it from there.

And your problem is not at all the same as munkeyman's was. He just didn't know how to crop and resize. He could have used AutoGK.

[jagabo]

Or edit the D2V file with Notepad (it's plain text) and change the AR there.