#!/bin/bash
rm -f transforms.trf
ffmpeg -i "${1}" \
-vf vidstabdetect=stepsize=32:shakiness=10:accuracy=15 -an \
-f null -

ffmpeg -i "${1}" \
-vf \
vidstabtransform=smoothing=90:optzoom=0:interpol=bicubic:crop=black \
-tune film \
-crf 18 \
-preset slow \
-c:a copy \
"${2}"