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#!/bin/sh
set -e
[ -n "$DEBUG" ] && set -x
if [ "$1" = "-h" ]; then
printf "usage: %s [FILE]\n" "$(basename "$0")"
printf "\n"
printf "Launches wf-recorder(1) with optimized settings.\n"
printf "If FILE is omitted, \$HOME/Videos/rec_TIMESTAMP.mkv is used.\n"
printf "Optionally environment vars can be used to tune things:\n"
printf " WF_AOUT - defaults to default pulseaudio sink\n"
printf " WF_AIN - defaults to default pulseaudio source\n"
printf " WF_AMUX - override creation of an pulseaudio sink for muxing\n"
printf " WF_VOUT - limit to output, defaults to focused output (swq current output)\n"
printf " WF_KEYS - launches wshowkeys(1)\n"
exit 2
fi
output_file=${1:-"${HOME}/Videos/rec_$(now).mkv"}
audio_output=${WF_AOUT}
audio_input=${WF_AIN}
video_output=${WF_VOUT}
showkeys=${WF_KEYS}
mux_sink=${WF_AMUX}
[ -z "${audio_output}" ] && audio_output=$(pacmd dump | grep "set-default-sink" | cut -d' ' -f2)
[ -z "${audio_input}" ] && audio_input=$(pacmd dump | grep "set-default-source" | cut -d' ' -f2)
[ -z "${video_output}" ] && video_output=$(swq current output)
if [ "${WF_AIN}" = "none" ] && [ -z "${WF_AMUX}" ]; then
echo "mux: ${audio_output}"
mux_sink="${audio_output}"
fi
if [ -z "${mux_sink}" ]; then
mux_sink=wf-mux
mux_sink_id=
output_loopback_id=
input_loopback_id=
prepare_mux_sink() {
mux_sink_id=$(pactl load-module module-null-sink sink_name="${mux_sink}" channels=2)
output_loopback_id=$(pactl load-module module-loopback sink="${mux_sink}" source="${audio_output}.monitor" remix=true)
input_loopback_id=$(pactl load-module module-loopback sink="${mux_sink}" source="${audio_input}" remix=true)
}
teardown_mux_sink() {
pactl unload-module "${mux_sink_id}"
pactl unload-module "${output_loopback_id}"
pactl unload-module "${input_loopback_id}"
}
trap '{ teardown_mux_sink >/dev/null; }' EXIT
prepare_mux_sink >/dev/null
echo "mux: ${mux_sink}"
fi
if [ -n "${showkeys}" ]; then
echo "Starting wshowkeys on ${video_output}"
echo "WARNING: currently the -o flag to force display to a specific output is not implemented" >&2
# -o ${video_output}
sway exec "wshowkeys -a bottom -a left -F 'Iosevka Sparkle 25' -t 1" >/dev/null
trap '{ pkill wshowkeys; }' EXIT
fi
set -x
wf-recorder -c h264_vaapi -d /dev/dri/renderD128 -o "${video_output}" -a "${mux_sink}.monitor" -f "${output_file}"
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