Display Frame Rate

1. create a TextField named "frameRate_txt"
2. put following codes in the first frame of a flv file.
var designatedFrameRate :Number = stage.frameRate; <br /> var lastFrameTime :Number;<br /> <br /> this.addEventListener(Event.ENTER_FRAME, showFrameRate);<br /> <br /> function showFrameRate(event:Event):void<br /> {<br /> var now :Number = getTimer();<br /> var elapsed :Number = now - lastFrameTime;<br /> var framePerSecond :Number = Math.floor(1000/elapsed);<br /> lastFrameTime = now;<br /> <br /> frameRate_txt.text = "Frame Rate: " + String(framePerSecond) + " / " + String(designatedFrameRate); <br /> }<br /> <br />