Merge pull request #4 from iambumblehead/add-pdf-thumbnail

Add pdf thumbnail

CHANGELOG.md

@@ -1,5 +1,7 @@
 # changelog
 
+ * 0.0.3 _Mar.03.2024_
+   * added pdf thumb generation [#4](https://github.com/iambumblehead/render-thumb-for.sh/pull/4)
  * 0.0.2 _Mar.02.2024_
    * added video thumb generation [#2](https://github.com/iambumblehead/render-thumb-for.sh/pull/2)
    * added audio thumb generation [#3](https://github.com/iambumblehead/render-thumb-for.sh/pull/3)

render-thumb-for.sh

@@ -11,12 +11,21 @@ mime_video_re="video/"
 mime_svg_re="image/svg"
 mime_img_re="image/"
 mime_audio_re="audio/"
+mime_pdf_re="application/pdf"
+
+#default_wh="640 480"
 
 img_dir="$HOME/.config/render-thumb-for"
 if [ -n "${XDG_CONFIG_HOME}" ]; then
   img_dir="$XDG_CONFIG_HOME/render-thumb-for"
 fi
 
+wh_max_get () {
+    IFS=" " read -r -a wh <<< "$1"
+
+    echo "$((${wh[0]} > ${wh[1]} ? ${wh[0]} : ${wh[1]}))"
+}
+
 wh_scaled_get () {
     IFS=" " read -r -a wh_bgn <<< "$1"
     IFS=" " read -r -a wh_max <<< "$2"
@@ -159,6 +168,19 @@ show_audio () {
     img_sixel_paint "audioshot.png" "$aud_wh_scaled"
 }
 
+show_pdf () {
+    pdf_path=$1
+    pdf_wh_max=$2
+
+    pdftoppm \
+        -singlefile \
+        -f 1 -l 1 \
+        -scale-to "$(wh_max_get "$2")" \
+        -jpeg "$pdf_path" "pdfhot"
+
+    img_sixel_paint "pdfhot.jpg" "$pdf_wh_max"
+}
+
 start () {
     img_path=$1
     max_wh="$2 $3"
@@ -177,12 +199,15 @@ start () {
         show_video "$img_path" "$max_wh"
     elif [[ $img_mimetype =~ ^$mime_audio_re ]]; then
         show_audio "$img_path" "$max_wh"
+    elif [[ $img_mimetype =~ ^$mime_pdf_re ]]; then
+        show_pdf "$img_path" "$max_wh"
     fi
 }
 
 #start "/home/bumble/software/Guix_logo.png" 800 400
 #start "/home/bumble/software/Guix_logo.svg" 800 800
 #start "/home/bumble/ビデオ/#338 - The Commissioning of Truth [stream_19213].mp4" 800 400
-start "/home/bumble/音楽/language/日本語 - Assimil/Assimil 10 テレビ.flac" 800 400
+#start "/home/bumble/音楽/language/日本語 - Assimil/Assimil 10 テレビ.flac" 800 400
+start "/home/bumble/ドキュメント/8020japanese/80-20_Japanese_(Kana___Kanji_Edition).pdf" 800 400
 echo "$is_cmd_ffmpeg"
 # ffmpeg -i "/home/bumble/ビデオ/#338 - The Commissioning of Truth [stream_19213].mp4" -vframes 1 -f rawvideo -y /dev/null 2>&1