helm/bin/scrrec
2019-08-06 13:56:54 -04:00

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#!/usr/bin/env nix-shell
#! nix-shell -i bash -p ffmpeg slop
# Select a region and record it.
#
# If given a gif, it will record an mp4 and convert it afterwards using the
# mov2gif script included in this repo (which is powered by gifsicle and
# ffmpeg).
#
# Usage: rec somefile.mp4
# rec another.gif
if [[ $1 == -s ]]; then
is_script=1
shift
fi
if [[ -f /tmp/_stop ]]; then
echo q > /tmp/_stop
if [[ $is_script ]]; then
>&2 echo "Nope"
else
echo "Stopped previous recording"
fi
exit 0
fi
read -r X Y W H < <(slop -f "%x %y %w %h")
dest=${1:-./rec.mp4}
if [[ $dest == *.gif ]]; then
echo "Detected gif"
mp4dest="${dest%.*}.mp4"
fi
if [[ $is_script ]]; then
echo "Starting"
touch /tmp/_stop
ffmpeg -y -f x11grab -s "$W"x"$H" -i :0.0+$X,$Y -framerate 30 "${mp4dest:-$dest}" </tmp/_stop
rm -f /tmp/_stop
else
ffmpeg -y -f x11grab -s "$W"x"$H" -i :0.0+$X,$Y -framerate 30 "${mp4dest:-$dest}"
fi
if [[ -f $mp4dest ]]; then
mov2gif "$mp4dest" "$dest" && rm -fv "$mp4dest"
fi
# vim:set ft=sh shiftwidth=2: