Plugins 使用OSMF代理插件监听当前时间变化

Plugins 使用OSMF代理插件监听当前时间变化,plugins,osmf,Plugins,Osmf,我正在尝试为OSMF创建一个代理插件，作为跟踪特定事件的分析插件。我想跟踪视频的当前时间 在代理元素的set方法中，我有以下内容： proxiedElement.addEventListener(MediaElementEvent.TRAIT_ADD, _onTraitAdd); 然后，在\onTraitAdd方法中，我为持续时间\u更改和当前时间\u更改事件附加事件侦听器 private function _onTraitAdd(event:MediaElementEvent ):v

proxiedElement.addEventListener(MediaElementEvent.TRAIT_ADD, _onTraitAdd);

\onTraitAdd

    private function _onTraitAdd(event:MediaElementEvent ):void {
        trace("adding trait");
        trace(event.traitType);

        if (MediaTraitType.TIME == event.traitType) 
        {
            //Get the time trait, so we can handle the duration changed event
            var timeTrait:TimeTrait = proxiedElement.getTrait( MediaTraitType.TIME ) as TimeTrait;
            timeTrait.addEventListener( TimeEvent.DURATION_CHANGE, _onDurationChanged );
            timeTrait.addEventListener( TimeEvent.CURRENT_TIME_CHANGE, _onTimeChanged );
            //debug( "Media has a timeline" );

        }

    }

DURATION\u CHANGE

CURRENT\u TIME\u CHANGE

pluginResource.addMetadataValue("MediaPlayer", mediaPlayer);

*/ 
override public function initializePlugin(resource:MediaResourceBase):void
{
var mediaPlayer:MediaPlayer = resource.getMetadataValue("MediaPlayer") as MediaPlayer;
mediaPlayer.addEventListener(TimeEvent.CURRENT_TIME_CHANGE, _onTimeChanged);

 }

 private function _onTimeChanged(event:TimeEvent):void {

     trace("event.time", event.time);
  }

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