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dotfiles/scripts/dmenurecord

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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.
updateicon() { \
echo "$1" > /tmp/recordingicon
pkill -RTMIN+9 "${STATUSBAR:?}"
}
killrecording() {
recpid="$(cat /tmp/recordingpid)"
# kill with SIGTERM, allowing finishing touches.
kill -15 "$recpid"
rm -f /tmp/recordingpid
updateicon ""
pkill -RTMIN+9 "${STATUSBAR:?}"
# even after SIGTERM, ffmpeg may still run, so SIGKILL it.
sleep 3
kill -9 "$recpid"
exit
}
screencast() { \
ffmpeg -y \
-f x11grab \
-framerate 24 \
-s $(xdpyinfo | grep dimensions | awk '{print $2;}') \
-i $DISPLAY \
# -f alsa -i default \
-f sndio -i snd/0 \
-r 24 -async 1 -vsync -1 \
-c:v libx264rgb -crf 0 -preset ultrafast -c:a aac \
# -preset ultrafast -c:a libvorbis \
"$HOME/Videos/screencast-$(date '+%y%m%d-%H%M%S').mkv" &
echo $! > /tmp/recordingpid
updateicon "⏺️🎙️"
}
screencastmobile() { \
ffmpeg -y \
-f x11grab \
-framerate 60 \
-s $(xdpyinfo | grep dimensions | awk '{print $2;}') \
-i $DISPLAY \
-f alsa -i default \
-r 30 \
-c:v libx264 -profile:v baseline -level 3.0 -pix_fmt yuv420p -loglevel panic -c:a aac \
"$HOME/Videos/screencast-$(date '+%y%m%d-%H%M%S').mp4" &
echo $! > /tmp/recordingpid
updateicon "⏺️🎙️"
}
video() { ffmpeg \
-f x11grab \
-s $(xdpyinfo | grep dimensions | awk '{print $2;}') \
-i $DISPLAY \
-c:v libx264 -qp 0 -r 30 \
"$HOME/Videos/video-$(date '+%y%m%d-%H%M%S').mkv" &
echo $! > /tmp/recordingpid
updateicon "⏺️"
}
videomobile() { \
ffmpeg -y \
-f x11grab \
-framerate 60 \
-s $(xdpyinfo | grep dimensions | awk '{print $2;}') \
-i $DISPLAY \
-r 30 \
-c:v libx264 -profile:v baseline -level 3.0 -pix_fmt yuv420p -loglevel panic\
"$HOME/Videos/video-$(date '+%y%m%d-%H%M%S').mp4" &
echo $! > /tmp/recordingpid
updateicon "⏺️🎙️"
}
webcamhidef() { ffmpeg \
-f v4l2 \
-i /dev/video0 \
-video_size 1920x1080 \
"$HOME/Videos/webcam-$(date '+%y%m%d-%H%M%S').mp4" &
echo $! > /tmp/recordingpid
updateicon "🎥"
}
webcam() { ffmpeg \
-f v4l2 \
-i /dev/video0 \
-video_size 640x480 \
"$HOME/Videos/webcam-$(date '+%y%m%d-%H%M%S').mp4" &
echo $! > /tmp/recordingpid
updateicon "🎥"
}
audio() { \
ffmpeg \
-f alsa -i default \
-c:a flac \
"$HOME/Videos/audio-$(date '+%y%m%d-%H%M%S').mp4" &
echo $! > /tmp/recordingpid
updateicon "🎙️"
}
askrecording() { \
choice=$(printf "screencast\\nvideo\\naudio\\nwebcam\\nscreencastmobile\\nvideomobile" | dmenu -i -sb "#252525" -p "Seleccione el modo de grabación:")
case "$choice" in
screencast) screencast;;
audio) audio;;
video) video;;
webcam) webcam;;
screencastmobile) screencastmobile;;
videomobile) videomobile;;
esac
}
asktoend() { \
response=$(printf "No\\nSí" | dmenu -i -sb "#252525" -p "Grabación activa.¿Desea finalizar?") &&
[ "$response" = "Sí" ] && killrecording
}
case "$1" in
screencast) screencast;;
audio) audio;;
video) video;;
kill) killrecording;;
*) ([ -f /tmp/recordingpid ] && asktoend && exit) || askrecording;;
esac