FLV starts playing onRollOver, need to stop onRollOut

programming flash
1

I have an FLV that starts playing onRollOver but no matter what I try I can’t get the video to stop. I tried onRollOut as a gotoAndPlay to frame1 as a means of stopping, but it is definitely not going to frame1 onRollOut

stop();
var nc:NetConnection = new NetConnection();
nc.connect(null);
var ns:NetStream = new NetStream(nc);
my_video.smoothing = true;
my_video.attachVideo(ns);
ns.setBufferTime(5);
function play_func() {
 ns.stop();
 ns.play("life.flv");
 
}
mc.onRollOver=function(){
 play_func();
 }
 
 mc.onRollOut = function(){
 this.gotoAndPlay("first");
 
 }