images distorted after rotate and merging of videos with different layouts

[mfran2002]

Hi all,
I'm using the software FreemakeVideoConverter.
I'm trying to merge different videos, mp4 each.
Some of them are portrait, others landscape.
Then, some of them have to be rotated (90') before merging.
After the merge I found that videos have not kept their ratios, then images are deformed...

May you please help me?
How can I do?
thanks

[davexnet]

Post some screen images of how it looks, or even a video sample.

Nobody can tell anything from your description

[mfran2002]

Yes, Davexnet, you are definitively right

sorry I can't post my own video frames right now but I can post some examples of what I get

in a few, after rotating, some videos are "enlarged" and some others are "restricted", see images as examples attached

I guess that, after the rotation and before the merging, I could have the possibility to input some setting to force keeping my ratios (even if it implies the insertion of side bands or something like that)


[Attachment 56744 - Click to enlarge]
[Attachment 56745 - Click to enlarge]

[mfran2002]

anyone can help me?

[Sharc]

I would normalize your clips to a standard format before merging. The .mp4 source files should have a rotation flag.
You could try something like

ffmpeg.exe -i "your.mp4" -c:a copy -c:v libx264 -preset medium -crf 21 -filter:v "scale=-2:704, pad=1280:720:(ow-iw)/2:(oh-ih)/2, setdar=16/9" "new.mp4"