Not sure if I’m allowed to post a Tutorial or not, but I thought I would give this a try. You might want to create a video that goes beyond what your phone and the IG app can do. I’ve seen a few suggestions for creating video in 1:1 format from your 16:9 video, and optimized for social media (Instagram, in this case). I was sort of messing around in Shotcut and came up with this.
- Open up your video in Shotcut and drag it to the timeline.
- Go to Settings → Video Mode → Non-broadcast, and find the Square 1080p 60fps option (or 30fps, if you prefer).
- Apply the Size and Position filter. Use the Distort mode and change the width to 1920. I prefer to leave the Y axis position value at 0 and just change the placement along the X axis.
Apply whatever other filters, cuts and edits that you want to. Maximum length for an Instagram video is 60 seconds.
On Export → Advanced, make sure your resolution is set to 1080x1080. Export as an .mp4.
You will wind up with a 1080x1080 square video, edited to your specifications, that takes advantage of the full height of your original video file. You can upload to your social media platform from there.
Thanks, and let me know if you have questions, or if anything in here isn’t clear.