misc/scripts/rec

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#!/bin/sh
record() {
if test "$1" = "-s"; then
geometry=$(hacksaw -f 'crop=%w:%h:%x:%y,scale_vaapi=%w:%h')
else
geometry='scale_vaapi=1920:1080'
fi
sleep 2
withcap sys_admin -- ffmpeg -f alsa -i recorder \
-device /dev/dri/card1 -f kmsgrab -i - -r 60 \
-vf "hwmap=derive_device=vaapi,$geometry:format=nv12" \
-c:v hevc_vaapi -qp 21 -rc_mode 1 \
-c:a libopus -b:a 96k -ac 2 -ar 48000 \
-y recording.mkv >/dev/null 2>&1
}
if test ! -f recording.mkv; then
echo recording in 2s...
record "$@" &
else
pkill ffmpeg
echo stopped recording
fi