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#!/bin/bash
set -e
recordingPATH="$HOME/media/screenrecords"
PID_FILE="/tmp/ffmpeg_screenrecord.pid"
mkdir -p "$recordingPATH"
# Detect NVENC support; fallback to fast CPU encoding if no NVIDIA GPU is detected
if command -v nvidia-smi &> /dev/null && nvidia-smi &> /dev/null; then
ENCODER_FLAGS="-c:v h264_nvenc -preset p6 -tune hq -rc constqp -qp 17"
else
ENCODER_FLAGS="-c:v libx264 -preset ultrafast -crf 17" # or medium/slow to be on par with p6 but ehh
fi
case $1 in
start)
if [ -f "$PID_FILE" ] && kill -0 "$(cat "$PID_FILE")" 2>/dev/null; then
dunstify -t 3000 -i /dev/null "⚠️ Recording is already running!"
exit 1
fi
dunstify -t 3000 -i /dev/null " Recording Starts In 3 Seconds"
sleep 3
TIMESTAMP=$(date +'%Y-%m-%d_%H-%M-%S')
OUTPUT_FILE="${recordingPATH}/screenrecording_${TIMESTAMP}.mp4"
# Standard yuv420p conversion allows players to auto-expand blacks properly
ffmpeg -video_size 1920x1080 -framerate 60 -f x11grab -i :0.0+0,0 \
$ENCODER_FLAGS -profile:v high -pix_fmt yuv420p -movflags +faststart \
"$OUTPUT_FILE" >/dev/null 2>&1 &
echo $! > "$PID_FILE"
;;
stop)
if [ -f "$PID_FILE" ]; then
PID=$(cat "$PID_FILE")
if kill -0 "$PID" 2>/dev/null; then
kill -SIGINT "$PID"
rm -f "$PID_FILE"
dunstify -t 3000 -i /dev/null " Recording Finished"
else
dunstify -t 3000 -i /dev/null "⚠️ Process not running."
rm -f "$PID_FILE"
fi
else
dunstify -t 3000 -i /dev/null "⚠️ No active recording."
fi
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
;;
esac
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