Add 'blaze' script by Cherrry9
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.local/bin/scripts/blaze
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272
.local/bin/scripts/blaze
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#!/usr/bin/env sh
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#
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# Blaze - record screen and audio
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# Author - Cherrry9
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deps() {
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[ "$1" ] && {
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md="$(for i in $deps; do printf " - \033[31m%s\033[0m\n" "$i"; done)"
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printf "\033[31mYou are missing dependencies\033[0m\n"
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printf "%b\n" "$md"
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printf "\n"
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}
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printf "\033[34mRequired dependencies\033[0m\n"
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printf " - \033[34mffmpeg\033[0m Actually recording\n"
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printf " - \033[34mdmenu\033[0m Selecting the options\n"
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printf "\n"
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printf "\033[35mAt least one of these is required\033[0m\n"
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printf " - \033[35mxorg-xrandr\033[0m Selecting a display to record\n"
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printf " - \033[35mslop\033[0m Selecting an area to record\n"
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printf "\n"
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printf "\033[32mOptional dependencies\033[0m\n"
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printf " - \033[32mnotify-send\033[0m Letting the user know when the recording starts/ends\n"
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printf " - \033[32mxdg-desktop-dir\033[0m Use directory from xdg instead \$HOME/Videos\n"
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exit
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}
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# check all necessary dependencies
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_() { command -v "$1" >/dev/null 2>&1; }
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_ dmenu || deps="$deps dmenu"
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_ ffmpeg || deps="$deps ffmpeg"
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_ xrandr || _ slop || deps="$deps xorg-xrandr/slop"
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[ "$deps" ] && deps "$deps"
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# output file, use $BLAZE_DIR and $BLAZE_FILE if they are set
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if [ ! "$BLAZE_DIR" ]; then
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_ xdg-user-dir &&
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BLAZE_DIR=$(xdg-user-dir VIDEOS 2>/dev/null) ||
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BLAZE_DIR="$HOME/Videos"
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fi
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[ ! -d "$BLAZE_DIR" ] && mkdir -p "$BLAZE_DIR" >/dev/null 2>&1
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output="$BLAZE_DIR/${BLAZE_FILE:-blaze-$(date '+%Y-%m-%d_%H-%M-%S').mp4}"
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# menu to use
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m() { ${DMENU:-dmenu} "$@"; }
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# exit if X isn't running
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[ ! "$DISPLAY" ] && { echo "Can't open display; exiting"; exit; }
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# find default audio device
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audio() {
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pacmd="$(pacmd list-sources | grep -i -B 1 output)"
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dev="$(echo "$pacmd" | grep -i '\* index' ||
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echo "$pacmd" | grep -i 'index' | head -n 1)"
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audio="-f pulse -i $(echo "$dev" | grep -o '[0-9]')"
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}
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save() {
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if [ -f "/tmp/blaze-pid" ]; then
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recpid="$(cat /tmp/blaze-pid)"
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# kill with SIGTERM, allowing finishing touches.
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kill -15 "$recpid"
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rm -f /tmp/blaze-pid
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# even after SIGTERM, ffmpeg may still run, so SIGKILL it.
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( sleep 3; kill -9 "$recpid" ) >/dev/null 2>&1 &
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echo "Recording Stopped"
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notify-send -t 2000 "Recording Stopped"
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exit
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else
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echo "Recording isn't active"
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notify-send -t 2000 "Recording isn't active"
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exit 1
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fi
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}
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help() {
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printf "\033[34mOptions\033[0m\n"
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printf " \033[34m-o\033[0m \033[35m[]\033[0m Specify the output file\n"
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printf " \033[34m-s\033[0m End the recording\n"
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printf " \033[34m-h\033[0m Display what you're reading right now\n"
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printf " \033[34m-d\033[0m printf dependencies\n"
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printf " \033[34m-c\033[0m Don't ask if the user is ready to record\n"
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printf " \033[34m-p\033[0m \033[35m[]\033[0m Save to and load from preset <x>\n"
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printf " \033[34m-r\033[0m \033[35m[]\033[0m Force framerate\n"
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printf " \033[34m-b\033[0m \033[35m[]\033[0m Force bitrate (in MB)\n"
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printf " \033[34m-m\033[0m \033[35m[]\033[0m Force method (slop, display)\n"
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printf " \033[34m-d\033[0m \033[35m[]\033[0m Force display (Doesn't require -m)\n"
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printf " \033[34m-n\033[0m Force disable NVENC\n"
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printf " \033[34m-S\033[0m Options to use for slop (Needs to be quoted)\n"
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printf " \033[34m-a\033[0m Record desktop audio\n"
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printf "\n"
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printf "To select an area, install 'slop',\n"
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printf "to select a display, install 'xorg-xrandr'\n"
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printf "\n"
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printf "\033[35m[]\033[0m = Option requires an argument\n"
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printf "\n"
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printf "\033[34mVariables\033[0m\n"
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printf " \033[34mBLAZE_DIR\033[0m Location to save the video\n"
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printf " \033[37mDefault: xdg-user-dir VIDEOS or \$HOME/Videos\033[0m\n"
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printf "\n"
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printf " \033[34mBLAZE_FILE\033[0m Name of the saved video\n"
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printf " \033[37mDefault: blaze-%s.mp4\033[0m\n" "\$(date +%Y-%m-%d_%H-%M-%S)"
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printf "\n"
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printf " \033[34mBLAZE_SLOP\033[0m Options to use for slop\n"
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printf " \033[37mDefault: None\033[0m\n"
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exit
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}
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while getopts ':hdscb:m:r:nD:S:p:ao:' opt; do
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case "$opt" in
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h)
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help;;
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d)
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deps;;
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s)
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save;;
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c)
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ready='yes';;
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b)
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bitrate="-b:v ${OPTARG}M";;
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m)
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method="$OPTARG";;
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r)
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rate="$OPTARG";;
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n)
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nvenc=' ';;
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D)
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display="$OPTARG"
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method='display';;
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S)
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sloptions="$OPTARG"
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method='selection';;
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p)
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preset="$OPTARG";;
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a)
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audio;;
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o)
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output="$OPTARG";;
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\?)
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echo "Invalid Option: -$OPTARG" 1>&2
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exit 1;;
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:)
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echo "Invalid Option: -$OPTARG requires an argument" 1>&2
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exit 1;;
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esac
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done
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shift $((OPTIND -1))
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# exit if blaze is running
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[ -f /tmp/blaze-pid ] && {
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echo "Blaze is already running, exiting."
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notify-send "Blaze is already running, exiting."
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exit
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}
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[ "$preset" ] && {
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# create preset location
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mkdir -p "${XDG_CONFIG_HOME:-$HOME/.config}"
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# load preset
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preset_location="${XDG_CONFIG_HOME:-$HOME/.config}"/blaze/"$preset"
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[ -f "$preset_location" ] &&
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. "$preset_location"
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}
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# ask the user what method they want to use
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[ ! "$method" ] && {
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# Check if the user has slop and disputils
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_ slop && s=s
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_ xrandr && d=d
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# if the user only has slop or disputils (But not both) use that
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[ "$s" ] && method=selection
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[ "$d" ] && method=display
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# if the user has both slop and disputils ask the user which one to use
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[ "$s" ] && [ "$d" ] &&
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method="$(printf "display\nselection" | m -p "Method of recording")"
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}
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if [ "$method" = display ]; then
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# get information about the display
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monitors="$(xrandr --listmonitors | awk 'NR>1 { printf $NF"\n" }')"
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# if there's only one display, use that and skip asking
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if [ "$(printf "%b\n" "$monitors" | wc -l)" = 1 ]; then
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display="$monitors"
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else # if there are other displays ask the user which one to use
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[ ! "$display" ] && display="$(printf "%b" "$monitors" | m -p "Display to record")"
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fi
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set -- $(xrandr -q | grep "$display" | grep -oP '\d*x\d*\+\d*\+\d*' | tr '+x' ' ')
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width="$1"
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height="$2"
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offX="$3"
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offY="$4"
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elif [ "$method" = selection ] || [ "$method" = slop ]; then
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# select an area and make each number a separate word
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set -- $(slop $sloptions -f '%w %h %x %y')
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# get information about the display
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width="$1"
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height="$2"
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offX="$3"
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offY="$4"
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[ "$(( width % 2 ))" = 1 ] && width="$(( width + 1 ))"
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[ "$(( height % 2 ))" = 1 ] && height="$(( height + 1 ))"
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else
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printf "Invalid method; exiting\n"
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exit 1
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fi
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# detect if the user has a nvidia card and use nvenc
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[ ! "$nvenc" ] && lspci | grep -qi nvidia && nvenc="-vcodec h264_nvenc"
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# ask the user what they want the framerate of the video to be
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[ ! "$rate" ] && rate="$(printf "30\n60" | m -p "Framerate")"
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[ ! "$rate" ] && exit
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# ask the user if they want to start the recording
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[ ! "$ready" ] && ready="$(printf "yes\nno" | m -p "Start the recording")"
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# save preset
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[ "$preset_location" ] && {
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cat >"$preset_location"<<EOF
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[ ! "\$rate" ] && rate="$rate"
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[ ! "\$bitrate" ] && bitrate="$bitrate"
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[ ! "\$method" ] && method="$method"
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EOF
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}
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[ "$ready" = yes ] && {
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notify-send -t 1500 "Recording Started"
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# -loglevel error | makes ffmpeg only printf errors to the terminal
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# -y | don't ask to start
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# -draw_mouse 1 | show the mouse in the video
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# -s | specifies the size of the recording
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# -r "$rate" | specifies the framerate of the video
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# -i | the input X display (not physical monitor) and offset
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# -pix_fmt yuv420p | allows the video to be played on browsers like firefox
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# -q:v | changes the quality of the video, lower is better.
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# "$output" | file to save the recording to
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ffmpeg \
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-loglevel error \
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-y \
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$audio \
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-f x11grab \
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-draw_mouse 1 \
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-s "${width}x$height" \
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-r "$rate" \
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-i "$DISPLAY.0+$offX,$offY" \
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$bitrate \
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-pix_fmt yuv420p \
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$nvenc \
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-q:v 0 \
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"$output" &
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echo $! > /tmp/blaze-pid
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}
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