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#!/bin/sh
# Usage:
# `$0`: Ask for recording type via dmenu
# `$0 screencast`: Record both audio and screen
# `$0 video`: Record only screen
# `$0 audio`: Record only audio
# `$0 kill`: Kill existing recording
#
# If there is already a running instance, user will be prompted to end it.
killrecording() {
recpid="$(cat /tmp/recordingpid)"
# kill with SIGTERM, allowing finishing touches.
kill -15 "$recpid"
rm -f /tmp/recordingpid
pkill -RTMIN+9 "${STATUSBAR:-dwmblocks}"
# even after SIGTERM, ffmpeg may still run, so SIGKILL it.
sleep 3
kill -9 "$recpid"
exit
}
screencast() { \
ffmpeg -y \
-f x11grab -probesize 32M -thread_queue_size 32 -i :0 \
-f sndio -thread_queue_size 128 -i snd/1 \
-codec:v libx264rgb -crf 0 -preset ultrafast \
-codec:a pcm_s16le \
"$HOME/screencast-$(date '+%y%m%d-%H%M-%S').mkv" &
# ffmpeg -y \
# -f x11grab \
# -framerate 60 \
# -s "$(xdpyinfo | awk '/dimensions/ {print $2;}')" \
# -i "$DISPLAY" \
# -f sndio -i snd/1 \
# -r 30 \
# -c:v h264 -crf 0 -preset ultrafast -c:a aac \
# "$HOME/screencast-$(date '+%y%m%d-%H%M-%S').mp4" &
echo $! > /tmp/recordingpid
}
audio() { \
ffmpeg \
-f sndio -i snd/1 \
-c:a flac \
"$HOME/audio-$(date '+%y%m%d-%H%M-%S').flac" &
echo $! > /tmp/recordingpid
}
askrecording() { \
#choice=$(printf "screencast\\nvideo\\nvideo selected\\naudio\\nwebcam\\nwebcam (hi-def)" | dmenu -i -p "Select recording style:")
choice=$(printf "screencast\\naudio" | dmenu -i -p "Select recording style:")
case "$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
}
case "$1" in
screencast) screencast;;
audio) audio;;
video) video;;
kill) killrecording;;
*) ([ -f /tmp/recordingpid ] && asktoend && exit) || askrecording;;
esac
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