Calculate Video Size

[lazaruz]

I was wondering what the formula for calculating the framesize for a video could be.

Let's say I have a video that is 685x512 and I want the target width to be 640, how do I calculate the height?

And when I have calculated the new height, it's suppose to be dividable by 16, right? how do I then calculate for the border/cropping?

[Bjs]

Div by 4

You'll want one of these to figure what you want : https://www.videohelp.com/tools?s=1#1

[prof_unto]

If your video has 1:1 aspect ratio, then 685/512 = 1.33789
rounded to 1.33333 (standard aspect ratio).
You want width 640, then height: 640/1.33333 = 480

FYI, the easiest way to do this by using MeGUI (equipped with cropping calculation)

[lazaruz]

Thanks, I will try it out

[Baldrick]

http://www.moitah.net/video_size_calc-1_0_1.zip helps you calculate the video frame size / resolution