From a918a598564b18518f4e918b94dfb24a520f8609 Mon Sep 17 00:00:00 2001
From: johnnybash <georgpfahler@wachenzell.org>
Date: Mon, 21 Dec 2020 16:24:18 +0100
Subject: [PATCH 1/3] video thumbnails in preview-tui

---
 plugins/preview-tui | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/plugins/preview-tui b/plugins/preview-tui
index 255c35dc..7ef9566b 100755
--- a/plugins/preview-tui
+++ b/plugins/preview-tui
@@ -26,6 +26,10 @@
 #                To use:
 #                1. install pistol
 #                2. set/export $USE_PISTOL as 1
+#    - optional: ffmpegthumbnailer for video thumbnails (https://github.com/dirkvdb/ffmpegthumbnailer).
+#                To use:
+#                1. install ffmpegthumbnailer
+#                2. set/export USE_VIDEOTHUMB as 1
 #
 # Usage:
 #   You need to set a NNN_FIFO path and a key for the plugin with NNN_PLUG,
@@ -63,6 +67,7 @@ SPLIT="$SPLIT"  # you can set a permanent split here
 TERMINAL="$TERMINAL"  # same goes for the terminal
 USE_SCOPE="${USE_SCOPE:-0}"
 USE_PISTOL="${USE_PISTOL:-0}"
+USE_VIDEOTHUMB="${USE_VIDEOTHUMB:-0}"
 PAGER="${PAGER:-less -R}"
 [ "$PAGER" = "most" ] && PAGER="less -R"
 
@@ -163,6 +168,19 @@ preview_file () {
             else
                 fifo_pager print_bin_info "$1"
             fi
+        elif [ "${mimetype%%/*}" = "video" ] && [ "$USE_VIDEOTHUMB" -ne 0 ] && exists ffmpegthumbnailer; then
+            ffmpegthumbnailer -s 0 -i "$1" -o "/tmp/videothumb.png"
+            if [ "$TERMINAL" = "kitty" ]; then
+                     # Kitty terminal users can use the native image preview method.
+                     kitty +kitten icat --silent --transfer-mode=stream --stdin=no \
+                          "/tmp/videothumb.png" &
+                elif exists catimg; then
+                     catimg "/tmp/videothumb.png"
+                elif exists viu; then
+                     viu -t "/tmp/videothumb.png"
+                else
+                     fifo_pager print_bin_info "$1"
+            fi
         elif [ "$mimetype" = "application/zip" ] ; then
             fifo_pager unzip -l "$1"
         elif [ "$ext" = "gz" ] || [ "$ext" = "bz2" ] ; then

From 4d77066b621e6c0a8fb17e384eba822f5d08248d Mon Sep 17 00:00:00 2001
From: johnnybash <georgpfahler@wachenzell.org>
Date: Sat, 26 Dec 2020 14:16:12 +0100
Subject: [PATCH 2/3] reuse image code, use more variables

---
 plugins/preview-tui | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/plugins/preview-tui b/plugins/preview-tui
index 7ef9566b..6358b4fa 100755
--- a/plugins/preview-tui
+++ b/plugins/preview-tui
@@ -156,7 +156,12 @@ preview_file () {
             fifo_pager ls --color=always
         fi
     elif [ "$encoding" = "binary" ]; then
-        if [ "${mimetype%%/*}" = "image" ] ; then
+        if [ "${mimetype%%/*}" = "image" ] || [ "${mimetype%%/*}" = "video" ]; then
+            if [ "${mimetype%%/*}" = "video" ] && [ "$USE_VIDEOTHUMB" -ne 0 ] && exists ffmpegthumbnailer; then
+		videothumb="/tmp/videothumb.$$.png"
+		ffmpegthumbnailer -s 0 -i "$1" -o "$videothumb"
+		set "$videothumb"
+	    fi
             if [ "$TERMINAL" = "kitty" ]; then
                 # Kitty terminal users can use the native image preview method.
                 kitty +kitten icat --silent --transfer-mode=stream --stdin=no \
@@ -168,19 +173,6 @@ preview_file () {
             else
                 fifo_pager print_bin_info "$1"
             fi
-        elif [ "${mimetype%%/*}" = "video" ] && [ "$USE_VIDEOTHUMB" -ne 0 ] && exists ffmpegthumbnailer; then
-            ffmpegthumbnailer -s 0 -i "$1" -o "/tmp/videothumb.png"
-            if [ "$TERMINAL" = "kitty" ]; then
-                     # Kitty terminal users can use the native image preview method.
-                     kitty +kitten icat --silent --transfer-mode=stream --stdin=no \
-                          "/tmp/videothumb.png" &
-                elif exists catimg; then
-                     catimg "/tmp/videothumb.png"
-                elif exists viu; then
-                     viu -t "/tmp/videothumb.png"
-                else
-                     fifo_pager print_bin_info "$1"
-            fi
         elif [ "$mimetype" = "application/zip" ] ; then
             fifo_pager unzip -l "$1"
         elif [ "$ext" = "gz" ] || [ "$ext" = "bz2" ] ; then
@@ -222,6 +214,7 @@ if [ "$PREVIEW_MODE" ] ; then
         kitty @ last-used-layout --no-response >/dev/null 2>&1
     fi
 
+    rm $videothumb
     exit 0
 fi
 

From 37de198303a613186a9ca311c59511f21c963dd7 Mon Sep 17 00:00:00 2001
From: johnnybash <georgpfahler@wachenzell.org>
Date: Sun, 27 Dec 2020 19:27:11 +0100
Subject: [PATCH 3/3] use trap to delete the temp files

---
 plugins/preview-tui | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/plugins/preview-tui b/plugins/preview-tui
index 6358b4fa..a24ac413 100755
--- a/plugins/preview-tui
+++ b/plugins/preview-tui
@@ -158,10 +158,11 @@ preview_file () {
     elif [ "$encoding" = "binary" ]; then
         if [ "${mimetype%%/*}" = "image" ] || [ "${mimetype%%/*}" = "video" ]; then
             if [ "${mimetype%%/*}" = "video" ] && [ "$USE_VIDEOTHUMB" -ne 0 ] && exists ffmpegthumbnailer; then
-		videothumb="/tmp/videothumb.$$.png"
-		ffmpegthumbnailer -s 0 -i "$1" -o "$videothumb"
-		set "$videothumb"
-	    fi
+                videothumb="/tmp/videothumb.$$.png"
+                ffmpegthumbnailer -s 512 -i "$1" -o "$videothumb" >/dev/null 2>&1
+                set "$videothumb"
+                trap 'rm "$videothumb"' EXIT
+            fi
             if [ "$TERMINAL" = "kitty" ]; then
                 # Kitty terminal users can use the native image preview method.
                 kitty +kitten icat --silent --transfer-mode=stream --stdin=no \
@@ -214,7 +215,6 @@ if [ "$PREVIEW_MODE" ] ; then
         kitty @ last-used-layout --no-response >/dev/null 2>&1
     fi
 
-    rm $videothumb
     exit 0
 fi