Get meta data from flv component

Hi all
I have got a flvComponent on the stage that resizes for different videos that are played.
I want to have other mcs on the stage the size of which depends on the video width.
The problem is that the component takes a period of time to load the next video, by which time the other mcs have been created using the previous value for width, and so can be wrong if the video width alters.
If I hadn’t used a component I would create my own player and use the onMatadata, and use that as a trigger to then create the other mcs.
My question is how can I set up an event/listener for when the video or metadata is loaded into the component so that I can use that event to then trigger the correct sizing of the mcs???
Thanks in advance
E