I've been looking for a way to limit videos to their bitrate to save bandwidth and I've come up with this code

if ($arg_LIMITSPEED) {
set $limit_rate $arg_LIMITSPEED;
}

It works but I would like to know if this code would be secure to use on a production server.

I am not worried about users setting their LIMITSPEED high on their own because I am limiting speeds at the network level as well.