initial commit

video2gif.sh

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+#!/bin/bash
+
+#video2gif.sh
+#PARAMS:
+# - filename [REQUIRED]
+# - ffmpeg params [OPTIONAL]
+
+# BASED on:
+# https://askubuntu.com/questions/110264/how-to-find-frames-per-second-of-any-video-file
+# https://stackoverflow.com/questions/32484504/using-random-to-generate-a-random-string-in-bash
+# https://stackoverflow.com/questions/53566442/ffmpeg-gif-with-transparency-from-png-image-sequence
+
+filename=$1
+#keep only the ffmpeg params
+shift
+framerate=$(ffmpeg -i $filename 2>&1 | sed -n "s/.*, \(.*\) fp.*/\1/p") # stolen from: https://askubuntu.com/questions/110264/how-to-find-frames-per-second-of-any-video-file
+
+if [ -n "$filename" -a -f $filename ] && [ -n "$framerate" ]
+then
+
+# temporary directory for garbage generated in the process
+alphanum="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890" #fuсkoff
+RANDOM=$$
+tmp_dir=""
+for i in {1..8} ; do
+    tmp_dir="$tmp_dir${alphanum:RANDOM%${#alphanum}:1}"
+done
+mkdir $tmp_dir
+
+# here we go
+options=$*
+# video to frames and maybe some processing
+ffmpeg -i $filename $options $tmp_dir/out%d.png
+# generate pallete with transparency support
+ffmpeg -i $tmp_dir/out%d.png -vf palettegen=reserve_transparent=1 $tmp_dir/palette.png
+# combine all frames into gif
+ffmpeg -framerate $framerate -i $tmp_dir/out%d.png -i $tmp_dir/palette.png -lavfi paletteuse=alpha_threshold=128 -gifflags -offsetting "${filename%.*}_out.gif"
+# i guess that's it
+rm -rf $tmp_dir
+else
+echo "Invalid file"
+fi
+# 🍆 i wanna fuck