[FFmpeg-user] Remove aspect-ratio from mp4

[Roger Pack]

>> Maybe you can just set them both to the same aspect ratio?
>> -r
> Thanks Mr.Roger.But I just want to know whether can we remove aspect ratio from a MP4 file using ffmpeg or do I need to use any other tool.I heard that aspect ratio is just a metadata which will be used by players to display.

It's a kind of "special" metadata but I don't know if ffmpeg can just
exclude it or not.  Maybe if you set it as 1:1 then it does don't
know.
-r