Resize interlaced video without making it progressive

[xMike]

Hi,

so to merge two videos, I need to resize one of them from 720x576 to 704x576.

I tried to use Avidemux with it, but it always makes the video 25 fps progressive. I want to keep it interlaced tho.

Is that possible in avidemux? Or should I rather use avisynth?

Cheers

[pandy]

Separate fields, resize only in horizontal direction, combine fields - probably fastest way to do such thing... Avidemux is to me way too unstable so can't help why it doesn't work correctly for you.

[KarMa]

I might be missing something, but shouldn't you be able to resize horizontally safely? I guess it depends on the resizer if it's even possible.

[xMike]

Separate fields, resize only in horizontal direction, combine fields - probably fastest way to do such thing... Avidemux is to me way too unstable so can't help why it doesn't work correctly for you.

How would I do what you suggested? I've never had to do it before, so I don't have any idea right now

[SaurusX]

Separate fields, resize only in horizontal direction, combine fields - probably fastest way to do such thing... Avidemux is to me way too unstable so can't help why it doesn't work correctly for you.

How would I do what you suggested? I've never had to do it before, so I don't have any idea right now

Something like:

separatefields()
spline36resize(704,height)
weave()

[poisondeathray]

You don't need to separate fields to perform a horizontal resize

In avidemux you can apply the resize filter and encode interlaced and it will work

For example , if you were using x264, under the frame tab, select interlaced, and proper the field order