openwrt-packages-dist/multimedia/mjpg-streamer/files/mjpg-streamer.init

#!/bin/sh /etc/rc.common
# Copyright (C) 2009-2014 OpenWrt.org

START=90
STOP=10

USE_PROCD=1
PROG=/usr/bin/mjpg_streamer

error() {
	echo "${initscript}:" "$@" 1>&2
}

start_instance() {
	local s="$1"

	config_get_bool enabled "$1" 'enabled' 0
	[ $enabled -eq 0 ] && return

	config_get input "$s" 'input'
	if [ -z "$input" ]; then
		error "in section '$s' option input is missing"
		return 1
	fi

	config_get output "$s" 'output'
	if [ -z "$output" ]; then
		error "in section '$s' option output is missing"
		return 1
	fi

	local input_arg
	if [ "x$input" = 'xuvc' ]; then
		input_arg="input_uvc.so"

		config_get device "$s" 'device'
		if [ ! -c "$device" ]; then
			error "device '$device' does not exist"
			return 1
		fi
		input_arg="${input_arg} --device $device"

		config_get fps "$s" 'fps'
		[ -n "$fps" ] && input_arg="${input_arg} --fps $fps"

		config_get_bool yuv "$s" 'yuv' 0
		if [ $yuv -ne 0 ]; then
			input_arg="${input_arg} --yuv"
			config_get quality "$s" 'quality'
			[ -n "$quality" ] && input_arg="${input_arg} --quality $quality"
		fi

		config_get resolution "$s" 'resolution'
		[ -n "$resolution" ] && input_arg="${input_arg} --resolution $resolution"

		config_get led "$s" 'led'
		[ -n "$led" ] && input_arg="${input_arg} --led $led"
	fi

	if [ -z "$input_arg" ]; then
		error "unsuported input option '$input' in section '$s'"
		return 1
	fi

	local output_arg
	if [ "x$output" = 'xhttp' ]; then
		output_arg="output_http.so"

		config_get port "$s" 'port'
		[ -n "$port" ] && output_arg="${output_arg} --port $port"

		config_get www "$s" 'www'
		[ -n "$www" ] && output_arg="${output_arg} --www $www"

		config_get username "$s" 'username'
		config_get password "$s" 'password'
		[ -n "$username" ] && [ -n "$password" ] && output_arg="${output_arg} --credentials $username:$password"
	fi

	if [ -z "$output_arg" ]; then
		error "unsuported output option '$output' in section '$s'"
		return 1
	fi

	procd_open_instance
	procd_set_param command "$PROG" --input "$input_arg" --output "$output_arg"
	procd_close_instance
}

start_service() {
	config_load 'mjpg-streamer'
	config_foreach start_instance 'mjpg-streamer'
}

service_triggers() {
	procd_add_reload_trigger 'mjpg-streamer'
}