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#!/bin/sh
# Usage:
# `record`: Ask for recording type via dmenu
# `record screencast`: Record both audio and screen
# `record video`: Record only screen
# `record audio`: Record only audio
# `record kill`: Kill existing recording
#
# If there is already a running instance, user will be prompted to end it.
updateicon() { \
echo "$1" > ~/.recordingicon
pkill -RTMIN+9 i3blocks
}
killrecording() {
recpid="$(cat ~/.recordingpid)"
# kill with SIGTERM, allowing finishing touches.
kill -15 "$recpid"
rm -f ~/.recordingpid
updateicon ""
pkill -RTMIN+9 i3blocks
# even after SIGTERM, ffmpeg may still run, so SIGKILL it.
sleep 3
kill -9 "$recpid"
exit
}
screencastpulse() { \
ffmpeg -y \
-f x11grab \
-framerate 60 \
-s $(xdpyinfo | grep dimensions | awk '{print $2;}') \
-i :0.0 \
-f alsa -i default \
-r 30 \
-c:v libx264rgb -crf 0 -preset ultrafast -c:a flac \
"$HOME/screencast-$(date '+%y%m%d-%H%M-%S').mkv" &
echo $! > ~/.recordingpid
updateicon "⏺️🎙️"
}
screencastalsa() { \
ffmpeg -y \
-f x11grab \
-s $(xdpyinfo | grep dimensions | awk '{print $2;}') \
-i :0.0 \
-thread_queue_size 1024 \
-f alsa -ar 44100 -i hw:1 \
-c:v libx264 -r 30 -c:a flac \
"$HOME/screencast-$(date '+%y%m%d-%H%M-%S').mkv" &
echo $! > ~/.recordingpid
updateicon "⏺️"
}
video() { ffmpeg \
-f x11grab \
-s $(xdpyinfo | grep dimensions | awk '{print $2;}') \
-i :0.0 \
-c:v libx264 -qp 0 -r 30 \
"$HOME/video-$(date '+%y%m%d-%H%M-%S').mkv" &
echo $! > ~/.recordingpid
updateicon "⏺️"
}
audiopulse() { \
ffmpeg \
-f alsa -i default \
-c:a flac \
"$HOME/audio-$(date '+%y%m%d-%H%M-%S').flac" &
echo $! > ~/.recordingpid
updateicon "🎙️"
}
audioalsa() { \
ffmpeg -y \
-f alsa -ar 44100 -i hw:1 \
"$HOME/audio-$(date '+%y%m%d-%H%M-%S').flac" &
echo $! > ~/.recordingpid
updateicon "🎙️"
}
askrecording() { \
choice=$(printf "screencast\\nvideo\\naudio" | dmenu -i -p "Select recording style:")
case "$choice" in
screencast) screencastpulse;;
audio) audiopulse;;
video) video;;
esac
}
asktoend() { \
response=$(printf "No\\nYes" | dmenu -i -p "Recording still active. End recording?") &&
[ "$response" = "Yes" ] && killrecording
}
case "$1" in
screencast) screencastpulse;;
audio) audiopulse;;
video) video;;
kill) killrecording;;
*) ([ -f ~/.recordingpid ] && asktoend && exit) || askrecording;;
esac
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