ActionScript simple code snippet for getting NetStream outta Dynamic source

as3_netStream_from_dynamic_sources

var trait:LoadTrait = pMediaPlayer.videoDisplay.mx_internal::videoPlayer.
	media.getTrait(MediaTraitType.LOAD)  as LoadTrait;

if (trait.__loader is RTMPDynamicStreamingNetLoader) {
	var rtmpLoader:RTMPDynamicStreamingNetLoader = 
		trait.__loader as RTMPDynamicStreamingNetLoader;
	
	if (rtmpLoader.__ns != null) {
		mSensors.track(rtmpLoader.__ns, {
			"stream": "livestreams/" + mCaption,
			"sx": mMediaPlayer.width,
			"sy": mMediaPlayer.height
		});
	}
}