<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
windowComplete="WindowComplete();" creationComplete="Init();">
<fx:Declarations>
<!-- 将非可视元素（例如服务、值对象）放在此处 -->
</fx:Declarations>
<fx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
import mx.collections.ArrayList;
import mx.controls.Alert;
import mx.controls.List;
import org.osmf.events.LoadEvent;
import spark.components.VideoDisplay;
import spark.components.VideoPlayer;
static public var player:VideoPlayer;
private var timer:Timer;
private function WindowComplete():void
{
stage.displayState=StageDisplayState.NORMAL;
stage.addChild(player);
}
private function Init():void
{
player=new VideoPlayer();
player.source="assets/1_TEASERS.mp4";
player.x=0;
player.y=0;
player.percentWidth=100;
player.percentHeight=100;
player.autoPlay=true;
player.addEventListener(LoadEvent.BYTES_LOADED_CHANGE,vp_bytesLoadedChangeHandler);
}
private function vp_bytesLoadedChangeHandler():void
{
if(player.bytesLoaded/player.bytesTotal>0.99)
{
player.autoPlay=true;
stage.addChild(player);
}
}
]]>
</fx:Script>
</s:WindowedApplication>

求大神看下

protected function application1_creationCompleteHandler(event:FlexEvent):void
{
var vp:spark.components.VideoPlayer = new spark.components.VideoPlayer();
vp.source = "http://helpexamples.com/flash/video/cuepoints.flv";
vp.muted = false;
var hGr:HGroup = new HGroup();
hGr.horizontalCenter = 0;
hGr.verticalCenter = 0;
hGr.addElement(vp);
borderContainer.addElement(hGr);
}
要点：
两层包装
hGr.addElement(vp);
borderContainer.addElement(hGr);