AVI resize - 640 x 272 vs 640 x 288

[fLYtRap]

Hi,

I have a dilema... I encoded a small part of a movie using AutoGK with 640 fixed width and after was done the high was 272. Is this a correct ratio for the encoded file or AG just does like this?

What I need to do right now is to resize this file to be 640 x 288, so I can combine it with other files into one video clip. What I'm concern about is this: if I resize this file from 640x272 to 640x288 will it loose its original aspect ratio?

[FulciLives]

You could re-encode it to 640x288 by adding black to the top and bottom. Add exactly 8 pixels of black to the top and 8 pixels of black to the bottom. This way the aspect ratio does not change.

If you were to simply resize from 640x272 to 640x288 then yes the aspect ratio is changed.

BTW a DVD with an aspect ratio of 2.35:1 will become 640x272 when converted to MPEG-4 format. So the real question is why are the other movies 640x288 instead of 640x272?

- John "FulciLives" Coleman

[fLYtRap]

I don't know why some of them are 640x288, thats how AutoGK did it. All the files have different size (640x272, 640x288, 640x368, etc, etc) I'm putting all the files together into one video clip, so I don't want to have all the black bars in different sizes.
I just decided to make all of them in size 640x288, since I have the most of them in that size. I was actually trying to do something with those 640x288 in VirtualDub to change the high, but that didn't work.