#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-or-later

help() {
	echo "$0: Load an application with libcamera V4L2 compatibility layer preload"
	echo " $0 [OPTIONS...] executable [args]"
	echo " -d, --debug	Increase log level"
}

debug=0
while [ $# -gt 0 ]; do
	case $1 in
		-d|--debug)
			debug=$((debug+1))
			;;
		-h)
			help;
			exit 0
			;;
		--)
			shift;
			break;;
		-*)
			echo "Unrecognised option: $1";
			help;
			exit 1
			;;
		*)
			break
			;;
	esac
	shift
done

[ $debug -gt 0 ] && loglevel=V4L2Compat:0
[ $debug -gt 1 ] && loglevel=0
[ "$loglevel" != "" ] && export LIBCAMERA_LOG_LEVELS=$loglevel

if [ "$LD_PRELOAD" = "" ] ; then
   LD_PRELOAD='@LIBCAMERA_V4L2_SO@'
else
   LD_PRELOAD="$LD_PRELOAD "'@LIBCAMERA_V4L2_SO@'
fi

export LD_PRELOAD

exec "$@"
