thumbnailify! because mp4 doesn't specify thumbnails, i'm sick of the blank black, and discord just uses the first frame

bash/thumbnailify.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+if [ ! -f "$@" ]; then
+	echo "file to thumbnailify plz"
+fi
+
+fullfilename=$(basename -- "$@")
+extension="${fullfilename##*.}"
+filename="${fullfilename%.*}"
+
+pushd $(dirname "$@")
+
+if [ -f "$filename""_thumbless.$extension" ]; then
+	echo "there's already a _thumbless in here... I think i'm already done?"
+	exit 1
+fi
+
+if [ -f "testframe.mp4" ] || [ -f "thumbnailism.txt" ]; then
+	echo "my temp files are already here... I think i'm redundant?"
+	exit 1
+fi
+
+echo "file testframe.mp4" > thumbnailism.txt
+echo "file $fullfilename" >> thumbnailism.txt
+
+ffmpeg -i "$fullfilename" -ss 1.5 -to 1.51666 testframe.mp4
+ffmpeg -f concat -i thumbnailism.txt -c copy output.mp4
+
+mv "$fullfilename" "$filename""_thumbless.$extension"
+mv output.mp4 "$fullfilename"
+rm thumbnailism.txt
+rm testframe.mp4
+
+popd