gen-thumbs

   1 #!/bin/bash
   2
   3 # Generates thumbs
   4
   5 if [[ "$1" != "" ]]; then
   6         if [[ -L "$1" ]]; then
   7                 exit
   8         fi
   9
  10         src="$1"
  11         base=$(basename -- "$src")
  12         dst=".thumbs/$base"
  13
  14         if [[ "$src" -nt "$dst" ]]; then
  15                 echo "update $dst"
  16
  17                 if [[ "$src" == *.mp4 ]] || [[ "$src" == *.gif ]]; then
  18                         dst_tmp="/tmp/$base.png"
  19                         rm -f "$dst_tmp"
  20
  21                         ffmpeg -hide_banner -loglevel error -i "$src" -ss 00:00:00.000 -vframes 1 "$dst_tmp"
  22                         src="$dst_tmp"
  23
  24                         dst_tmp="/tmp/$base"
  25                         mv "$src" "$dst_tmp"
  26                         src="$dst_tmp"
  27                 fi
  28
  29                 mogrify -path .thumbs/ -auto-orient -thumbnail 128x128 -quality 90% "$src"
  30
  31                 rm -f "$dst_tmp"
  32         fi
  33 else
  34         mkdir -p .thumbs
  35         find -type f -not -path "./.thumbs/*" \
  36                 | grep -iE "\.png$|\.jpg$|\.jpeg$|\.jfif$|\.gif$|\.webp$|\.mp4$" \
  37                 | parallel -j$(nproc) "$0" {}
  38 fi