1 files changed, 37 insertions, 0 deletions
diff --git a/ar/.local/bin/screenshotactivewindow b/ar/.local/bin/screenshotactivewindow
new file mode 100755
index 0000000..79365e0
--- /dev/null
+++ b/ar/.local/bin/screenshotactivewindow
@@ -0,0 +1,37 @@
+#!/bin/bash
+set -eo pipefail
+
+pidfile=/tmp/screencast.lock
+
+if [ -e $pidfile ]; then
+  pid=$(cat $pidfile)
+  echo "Already running as ID $pid, now quitting"
+  rm $pidfile
+  kill -15 $pid
+  exit 0
+fi
+
+if [[ "$1" == "" ]]; then
+  echo "Usage: ${0##*/} <window-id>"
+  exit 2
+fi
+
+windowId=$1
+tmpFile=/tmp/screencast-$(date +%s).mkv
+paletteFile=/tmp/palette-$(date +%s).png
+gifFile=/tmp/screencast-$(date +%s).gif
+
+size=$(xdotool getwindowgeometry $windowId | grep Geometry | awk '{print $2}')
+posX=$(xwininfo -id $windowId | grep 'Absolute upper-left X' | awk '{print $4}')
+posY=$(xwininfo -id $windowId | grep 'Absolute upper-left Y' | awk '{print $4}')
+pos="$posX,$posY"
+
+ffmpeg -hide_banner -loglevel info -f x11grab -show_region 1 -video_size $size -i :0+$pos $tmpFile &
+ffPID=$!
+echo $ffPID >$pidfile
+wait $ffPID && echo
+
+ffmpeg -y -i $tmpFile -vf fps=10,palettegen $paletteFile
+ffmpeg -i $tmpFile -i $paletteFile -filter_complex "paletteuse" $gifFile
+
+rm $paletteFile $tmpFile