NetStream.onMeta data please help

programming flash
1

Hello

I want to use NetStream.onMetaData inside a class. can anyone please tell me where I sould do this because on the main timeline I can just define


ns.onMetaData = function(info:Object){trace(info["duration"]);}

But how or where can I put this function and how it will fire like if I have a function in my class


public function onData(info:Object){trace(info["duration"]);}

Where can or how this function will be called

I am sorry if not making any sense

Thanks in advance