Width/height not divisible by 2. How to add 1 pixel?

Question

linux

I need to fit the video into a 1000x1000 square (let's say). If the size of some side is larger, then proportionally reduce. If it fits into a square, then leave it as it is (do not increase). Paddings up to 1000x1000 are not needed.
In short, this is the command:

-vf scale='min(1000,iw)':'min(1000,ih)':force_original_aspect_ratio=decrease

But if the video size is initially odd (or after resizing), then I get the error Width/height not divisible by 2. How can I fix it?

Answer 1

Since the question is open, I'll put in my two cents. I recently made a python program where I needed to stretch a video or shrink a video to a certain size of 1080 x 1920 using ffmpeg. Let's say the video has a size of 600x800
. For this, I used the formula
ratio = min([1080 / 600, 1920 / 800])
new_width = ratio * 600
new_height = ratio * 800
well, if the number turns out to be odd, then you need to round it up to the nearest even