How to use:
Make XVtoSV.sh executable
./XVtoSV.sh [your 16:9 file(s)]
Example:
./XVtoSV.sh RC_0023_210430125204.MP4
Note that this process takes a very long time.
Dependencies:
FFMPEG
Derperview (https://github.com/banelle/derperview)
Optional dependency:
FFPMEG-bar (https://github.com/sidneys/ffmpeg-progressbar-cli) - See the script to enable or disable this