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Odd Aspect Ratio - stretch video?
#1
Hi All,

This was supposed to be another relatively simple webrip project. As you can see from the screenshots below whoever made the video has cropped it to 1920x816 (i.e. 2:35:1) which is the correct aspect. However when they did it they left some black bar at the top and a little bit at the bottom. I've played around, after cropping this off it changes it to 1920x775 which makes the aspect ratio approx 2:47:1. 

So I then took the exact same shot from the DVD, cropped off the matte, resized it and laid it over the shot from the webrip - there is nothing missing from the webrip - perhaps a pixel from the bottom but nothing from the top. So it's pretty much got the same amount of picture but it's in the wrong aspect ratio.

So I'm thinking whoever made it cropped it wrong, then encoded it to 1920x816 and as a result the video has been slightly squashed. So I'm thinking my next step is to crop off the bits of black, which takes it down to 1920x775, then resize it back to 1920x816 and finally matte it back to 1920x1080. That will restore the correct aspect ratio and will be blu ray compliant.

Do you follow this logic or would you go about it differently?

Thanks

[Image: FCUcIQR.png]

[Image: GRK855P.png]
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#2
What film is it?
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#3
(2020-12-08, 10:50 PM)Hitcher Wrote: What film is it?

Eight Legged Freaks
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#4
(2020-12-08, 10:41 PM)alleycat Wrote: Do you follow this logic or would you go about it differently?

I would think so but I'm far from the most qualified person to say. But aye, if I'm following your thought process correctly, I agree.
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#5
I was able to repair the Truman show bluray by changing the resolution in mkvtoolnix without needing re coding. Dunno if that helps at all.
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#6
(2020-12-08, 11:15 PM)ac3 Wrote: I was able to repair the Truman show bluray  by changing the resolution in mkvtoolnix without needing re coding. Dunno if that helps at all.

If I know @alleycat at all, this is probably going to be getting authored to a disc rather than an MKV... Wink
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#7
(2020-12-08, 11:28 PM)pipefan413 Wrote:
(2020-12-08, 11:15 PM)ac3 Wrote: I was able to repair the Truman show bluray  by changing the resolution in mkvtoolnix without needing re coding. Dunno if that helps at all.

If I know @alleycat at all, this is probably going to be getting authored to a disc rather than an MKV... Wink

Yep you got me lol, putting together the menu as we speak Smile. Thanks for the suggestion though ac3
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#8
Dunno if you have calculated it wrong, but mine is 1920x778; anyway, better to use even number - 776 or 778 - then bilinearresize to 816 (even if I'd go with 804, 2.39:1 as it was in the theaters).

Note: there is also an open matte version floating around.
Sadly my projects are lost due to an HDD crash... Sad
Fundamental Collection | Vimeo channel | My blog
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#9
Quick question: I've grabbed 2 other versions and MediaInfo say both are 1920x816 so how do I find out the actual height minus the black bars?
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#10
I did it by exporting a single frame, zooming in and cropping off any black in paint, then save and go into properties - should then tell you the new size.
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