mirror2.sh

#!/bin/zsh
rm -rf ./frames ./ftop ./fbottom ./final;

mkdir -p {frames,ftop,fbottom,final};

ffmpeg -i IMG_6501.MOV -r 25 -qscale:v 2 frames/%05d.jpg ;

framesNumber=$(ls ./frames/*.jpg |wc -l|tr -d ' ');

C_H=540
H=1080
H_D=$((H - C_H));

for i in {1..${framesNumber}}
do
    nb=$(printf %05d ${i});
    convert frames/${nb}.jpg -crop 1920x${H_D}+0+${C_H} fbottom/${nb}.jpg;
    convert fbottom/${nb}.jpg -flip ftop/${nb}.jpg;
    convert fbottom/${nb}.jpg ftop/${nb}.jpg -append final/${nb}.jpg;
done


#convert -layers Optimize frames/*.jpg out.gif;
cat ./final/*.jpg | ffmpeg -f image2pipe -r 25 -vcodec mjpeg -i - -vcodec libx264 out-${C_H}.mp4;

exit 0;