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#!/bin/sh
usage() {
echo "Asks for recording type via dmenu."
echo "If there is already a running instance, user will be prompted to end it. "
echo ""
echo "Usage: ${0##*/} [-h] [-a|--audio|audio] [-k|--kill|kill] [-v|--video|video] [-s|--screencast|screencast]"
echo ""
echo "Options:"
echo " - audio : Records only audio"
echo " - kill : Kills existing recording"
echo " - video : Records only screen"
echo " - screencast : Records both audio and screen"
}
getdim() { xrandr | grep -oP '(?<=current ).*(?=,)' | tr -d ' '; }
updateicon() {
echo "$1" >/tmp/recordingicon
pkill -RTMIN+24 "${STATUSBAR:-dwmblocks}"
}
killrecording() {
recpid="$(cat /tmp/recordingpid)"
kill -15 "$recpid"
rm -f /tmp/recordingpid
updateicon ""
pkill -RTMIN+24 "${STATUSBAR:-dwmblocks}"
}
screencast() {
ffmpeg -y \
-f x11grab \
-framerate 30 \
-s "$(getdim)" \
-i "$DISPLAY" \
-r 24 \
-use_wallclock_as_timestamps 1 \
-f alsa -thread_queue_size 1024 -i default \
-c:v h264 \
-crf 0 -preset ultrafast -c:a aac \
"$recordings/screencast-$(date '+%y%m%d-%H%M-%S').mp4" &
echo $! >/tmp/recordingpid
updateicon "⏺️🎙️"
}
video() {
ffmpeg \
-f x11grab \
-framerate 30 \
-s "$(getdim)" \
-i "$DISPLAY" \
-c:v libx264 -qp 0 -r 30 \
"$recordings/video-$(date '+%y%m%d-%H%M-%S').mkv" &
echo $! >/tmp/recordingpid
updateicon "⏺️"
}
webcamhidef() {
ffmpeg \
-f v4l2 \
-i /dev/video0 \
-video_size 1920x1080 \
"$recordings/webcam-$(date '+%y%m%d-%H%M-%S').mkv" &
echo $! >/tmp/recordingpid
updateicon "🎥"
}
webcam() {
ffmpeg \
-f v4l2 \
-i /dev/video0 \
-video_size 640x480 \
"$recordings/webcam-$(date '+%y%m%d-%H%M-%S').mkv" &
echo $! >/tmp/recordingpid
updateicon "🎥"
}
audio() {
ffmpeg \
-f alsa -i default \
-c:a flac \
"$recordings/audio-$(date '+%y%m%d-%H%M-%S').flac" &
echo $! >/tmp/recordingpid
updateicon "🎙️"
}
askrecording() {
choice=$(printf "screencast\\nvideo\\nvideo selected\\naudio\\nwebcam\\nwebcam (hi-def)" | dmenu -i -p "Select recording style:")
case "$choice" in
screencast) screencast ;;
audio) audio ;;
video) video ;;
*selected) videoselected ;;
webcam) webcam ;;
"webcam (hi-def)") webcamhidef ;;
esac
}
asktoend() {
response=$(printf "No\\nYes" | dmenu -i -p "Recording still active. End recording?") &&
[ "$response" = "Yes" ] && killrecording
}
videoselected() {
slop -f "%x %y %w %h" >/tmp/slop
read -r X Y W H </tmp/slop
rm /tmp/slop
ffmpeg \
-f x11grab \
-framerate 30 \
-video_size "$W"x"$H" \
-i :0.0+"$X,$Y" \
-c:v libx264 -qp 0 -r 30 \
"$recordings/box-$(date '+%y%m%d-%H%M-%S').mkv" &
echo $! >/tmp/recordingpid
updateicon "⏺️"
}
recordings="${XDG_VIDEOS_DIR:-$HOME/Videos}/recordings"
[ -d "$recordings" ] || mkdir -p "$recordings"
case "$1" in
-h | --help | help) usage && exit 0 ;;
-a | --audio | audio) audio ;;
-k | --kill | kill) killrecording ;;
-s | --screencast | screencast) screencast ;;
-v | --video | video) video ;;
*selected) videoselected ;;
*) ([ -f /tmp/recordingpid ] && asktoend && exit) || askrecording ;;
esac
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