makeManyPalindromicGifs.sh

# its dependencies are gifsicle and ffmpeg
gifify() {
  if [[ -n "$1" ]]; then # if the input lengt≈h is non-zero                                                        
    randomPlace=0 #lazy, i use it for filename regurdless if its needed or not
    if [[ $2 != '--random' && $3 != '--random' ]]; then
        ffmpeg -i $1 -r 10 -vcodec png out-static-%05d.png
    else
        #s=$(ffprobe -i $1 -show_entries format=duration -v quiet -of csv="p=0")
        s=$(ffprobe -i $1 -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1)
        seconds=$(echo "$s - 2" | bc)
        secondsInt=$(echo $seconds | cut -d "." -f 1 | cut -d "," -f 1)
        echo "in random"
        echo "this is secondsInt: $secondsInt"
        #seconds=1
        randomPlace=$[RANDOM%$secondsInt] # this random only goes up to 32767 which is 9 hours
        echo "this is randomplace: $randomPlace"
        # if you want the gifs to be not 2 seconds long, change the number after the t flag
        ffmpeg -i $1 -ss $randomPlace -t 2 -r 10 -vcodec png out-static-%05d.png
        #starting at a random place take two seconds
    fi
    if [[ $2 != '--big' ]]; then
      a=$(ls out-static* | wc -l)
      for p in $(ls -r out-static*);
        do
        out=$(printf "out-static-%05d.png" $a)
        let "a++"
        cp $p $out
        done
      name=$(echo "$1" | cut -f 1 -d '.')
      finalName="$name$randomPlace"
      time convert -verbose +dither -layers OptimizePlus -resize 25% \> out-static*.png  GIF:- | gifsicle --colors 256 --delay=5 --loop --optimize=3 --multifile - > $finalName.gif
      # OptimizePlus
    else
       a=$(ls out-static* | wc -l)
      for p in $(ls -r out-static*);
        do
        out=$(printf "out-static-%05d.png" $a)
        let "a++"
        cp $p $out
        done
      name=$(echo "$1" | cut -f 1 -d '.')
      finalName="$name$randomPlace"
      time convert -verbose +dither -layers OptimizePlus -resize 600x600\> out-static*.png  GIF:- | gifsicle --    colors 128 --delay=5 --loop --optimize=3 --multifile - > $finalName.gif
       # time convert -coalesce +dither -duplicate 1,-2-1 -loop 0 -treedepth 5 -colors 128\> out-static*.png $1.gif
    fi
    rm out-static*.png
  else
    echo "proper usage: gifify <input_movie.mov>. You DO need to include extension. do --big for big"
  fi
}
                                                                                                                   
# so for this one you must have nothing else in the directory except audio files
randomAudio(){
  for p in $(ls);
    do
    for i in {0..$1}; #make this many of each video
      do
        s=$(ffprobe -i $p -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1)
        seconds=$(echo "$s - 2" | bc)
        secondsInt=$(echo $seconds | cut -d "." -f 1 | cut -d "," -f 1)
        echo "in randomAudio"
        echo "this is secondsInt: $secondsInt HELLOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
        #seconds=1
        randomPlace=$[RANDOM%$secondsInt] # this random only goes up to 32767 which is 9 hours
        echo "this is randomAudio: $randomPlace"
        #seconds=1
        name=$(echo "$1" | cut -f 1 -d '.')                                                                        
        finalName="$name$randomPlace"
        ffmpeg -i $p -ss $randomPlace -t 10 $finalName.WAV
      done
    done
}

bigGifify(){ #use  $bigGifify 1 (how many per video in the directory you want)
  for p in $(ls);
    do
    for i in {0..$1}; #make this many of each video
      do
           gifify $p --random
      done
    done
}