#!/bin/sh

# split a left-right video into two videos. some image degradation seems unavoidable because of necessary re-encoding of the resulting parts

ffmpeg -i "$1" -filter_complex "[0]crop=iw/2:ih:0:0[left];[0]crop=iw/2:ih:ow:0[right]" -map "[left]" -map 0:a "left-$1" -map "[right]" -map 0:a "right-$1"