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- #!/bin/sh
- # Last Change: Mon, 26 Sep 2022 13:50:53
- # source: https://github.com/LukeSmithxyz/voidrice/blob/master/.local/bin/dmenurecord
- # vim:set softtabstop=2 shiftwidth=2 tabstop=2 expandtab ft=sh:
- # code to study:
- # https://github.com/hoytech/screencast-capture/blob/master/screencast-capture.pl
- # 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.
- updateicon() { \
- echo "$1" > /tmp/recordingicon
- pkill -RTMIN+9 "${STATUSBAR:-dwmblocks}"
- }
- killrecording() {
- recpid="$(cat /tmp/recordingpid)"
- # kill with SIGTERM, allowing finishing touches.
- kill -15 "$recpid"
- rm -f /tmp/recordingpid
- updateicon ""
- 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 \
- -framerate 60 \
- -s "$(xdpyinfo | awk '/dimensions/ {print $2;}')" \
- -i "$DISPLAY" \
- -f alsa -i default \
- -r 30 \
- -c:v h264 -crf 0 -preset ultrafast -c:a aac \
- "$HOME/screencast-$(date '+%y%m%d-%H%M-%S').mp4" &
- echo $! > /tmp/recordingpid
- updateicon "⏺️🎙️"
- }
- video() { ffmpeg \
- -f x11grab \
- -s "$(xdpyinfo | awk '/dimensions/ {print $2;}')" \
- -i "$DISPLAY" \
- -c:v libx264 -qp 0 -r 30 \
- "$HOME/video-$(date '+%y%m%d-%H%M-%S').mkv" &
- echo $! > /tmp/recordingpid
- updateicon "⏺️"
- }
- webcamhidef() { ffmpeg \
- -f v4l2 \
- -i /dev/video0 \
- -video_size 1920x1080 \
- "$HOME/webcam-$(date '+%y%m%d-%H%M-%S').mkv" &
- echo $! > /tmp/recordingpid
- updateicon "🎥"
- }
- webcam() { ffmpeg \
- -f v4l2 \
- -i /dev/video0 \
- -video_size 640x480 \
- "$HOME/webcam-$(date '+%y%m%d-%H%M-%S').mkv" &
- echo $! > /tmp/recordingpid
- updateicon "🎥"
- }
- audio() { \
- ffmpeg \
- -f alsa -i default \
- -c:a flac \
- "$HOME/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?") &&
- [ "$response" = "Yes" ] && killrecording
- }
- videoselected()
- {
- slop -f "%x %y %w %h" > /tmp/slop
- read -r X Y W H < /tmp/slop
- rm /tmp/slop
- ffmpeg \
- -f x11grab \
- -framerate 60 \
- -video_size "$W"x"$H" \
- -i :0.0+"$X,$Y" \
- -c:v libx264 -qp 0 -r 30 \
- "$HOME/box-$(date '+%y%m%d-%H%M-%S').mkv" &
- echo $! > /tmp/recordingpid
- updateicon "⏺️"
- }
- case "$1" in
- screencast) screencast;;
- audio) audio;;
- video) video;;
- *selected) videoselected;;
- kill) killrecording;;
- *) ([ -f /tmp/recordingpid ] && asktoend && exit) || askrecording;;
- esac
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