triggeye

#!/bin/bash -eu

# Copyright (c) 2019 Tak Jaga
# Released under the Apache License, Version 2.0
# https://github.com/takjg/TriggEye/blob/master/LICENSE

device=0     # -d <id> ........... camera ID
width=1920   # -w <pixels> ....... camera width
height=1080  # -h <pixels> ....... camera height
interval=1.0 # -i <seconds> ...... minimum trigger interval
margin=150   # -m <millimeters> .. margin for error

while getopts i:m:d:w:h: OPT; do
    case $OPT in
        d)   device=$OPTARG ;;
        w)    width=$OPTARG ;;
        h)   height=$OPTARG ;;
        i) interval=$OPTARG ;;
        m)   margin=$OPTARG ;;
       \?) echo "Usage: $0 [options] command_to_be_executed" 1>&2 ; exit 1 ;;
    esac
done
shift $((OPTIND - 1))

trap 'kill $(jobs -p)' EXIT

cmd=$* # command to be executed when triggered
csv=feature.csv # path to output CSV of FeatureExtraction
rm -f $csv
touch $csv

openface=OpenFace_*.*.*_win_*/FeatureExtraction.exe
test -x $openface ||
openface=OpenFace-OpenFace_*.*.*/build/bin/FeatureExtraction

dir=$PWD
pushd $(dirname $openface)
./$(basename $openface) \
    -device $device \
    -cam_width $width \
    -cam_height $height \
    -gaze \
    -3Dfp \
    -of $csv \
    -out_dir $dir &
popd

tail -f $csv |
python3 detect.py $interval $margin |
while read line; do
    echo $line
    $cmd &
done