Rescaling the Tinterlace filter outupt in FFMPEG

[JackyBorderCollie]

Hi. I used the Tinterlace filter on one of my videos in FFMPEG, but the video is stretched to a 1:1 ratio, and I can't change it. Adding the rescale command after the apply Tinterlace command does work, but it removes the Tinterlace filter. Can you please help me?
This is the whole script I am using

ffmpeg -i "input.mp4" -filter:v "tinterlace" "output.mp4"

[poisondeathray]

-aspect 16/9, or -aspect 4/3 , or whatever aspect

Or you can set the sar with -vf setsar

[JackyBorderCollie]

-aspect 16/9, or -aspect 4/3 , or whatever aspect

Or you can set the sar with -vf setsar

It worked! Thanks!