fix-scoping.sh

fix-scoping.sh

#!/bin/zsh

mkdir -p {frames,final};

ffmpeg -i 03.mp4 -r 25 -qscale:v 2 frames/%05d.jpg ;


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

W=720
H=1280
P_W=160
P_H=128
PSHIFT=5
GAP=15
MODE=0


for startId in {1..${framesNumber}..$((PSHIFT + GAP ))}
do
  for id in {${startId}..$((startId + PSHIFT + GAP -1 ))}
  do
    nb=$(printf %05d ${id});
    target=$(printf %05d $((startId + PSHIFT - 1 )));
    lim=$((startId + PSHIFT - 1 ));

    echo "id: $id - nb: $nb - target: $target - startId: $startId - lim: $lim";


    if [[ "$id" -gt "$lim" ]] ; then
      cp ./frames/$nb.jpg ./final/$nb.jpg;
      continue;
    fi

    x="convert ./frames/$nb.jpg "

    for i in {0..$((H / P_H - 1 ))}
    do
      for j in {0..$(( W / P_W - 1))}
      do
        if [[ `expr $MODE % 2` -eq 0 ]]; then
          if [ `expr $i % 2` -eq `expr $j % 2` ]; then
            x="$x \( ./frames/${target}.jpg -crop ${P_W}x${P_H}+$((j*P_W))+$((i*P_H))  -contrast -contrast -geometry +$((j*P_W))+$((i*P_H)) \) -composite "
          fi
        else
          if [ `expr $i % 2` -ne `expr $j % 2` ]; then
            x="$x \( ./frames/${target}.jpg -crop ${P_W}x${P_H}+$((j*P_W))+$((i*P_H))   -contrast -contrast -geometry +$((j*P_W))+$((i*P_H)) \) -composite "
          fi
        fi
      done
    done
    x="$x final/${nb}.jpg ";


    #echo $x;

    eval $x;
    x=""
  done
  MODE=$((MODE + 1))
done
# $((framesNumber / 20))
cat ./final/*.jpg | ffmpeg -f image2pipe -r 25 -vcodec mjpeg -i - -vcodec libx264 out.mp4;