keep Ratio in full screen - Extract Ratio from a movie (mp4) flash player

This is what i'm trying to do , 开发者_运维知识库get the Ratio 4:3 9:16 etc from an mp4 movie (h264) so when ill open it in fullscreen using a flash player / action script 3 it will still keep the ratio.

regards

there is height and width varibles in the metadata recieved from loaded movies, divide one by the other to get the ratio of the video.

livedocs example

Or, if you are using flex: http://livedocs.adobe.com/flex/3/langref/flash/net/NetConnection.html

(see example at bottom of page)