简单流媒体播放器代码,AS代码库,德仔网

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【AS】简单流媒体播放器
作者:芷君 / 发布于2014/11/4/ 518

	package
	{
	 import flash.events.*;
	 import flash.media.Video;
	 import flash.display.Sprite;
	 import flash.net.*;
	 import flash.text.TextField;
	 import fl.controls.Button;
	
	 public class StreamingVideoPlayer extends Sprite {
	 private var _videoURL:String;
	 private var _video:Video;
	 private var _vidDuration:Number;
	 private var _vidXmax:Number;
	 private var _vidYmax:Number;
	 private var _vidWidth:Number;
	 private var _vidHeight:Number;
	 private var _main_nc:NetConnection = new NetConnection();
	 private var _serverLoc:String;
	 private var _ns:NetStream;
	 private var _start_btn:Button;
	
	 /* ------------Contructors/Initialization-----------*/
	 public function StreamingVideoPlayer(serverLoc:String,
	 flvLocation:String,vidDuration:Number,vidXmax:Number,
	 vidYmax:Number):void {
	 //set video params
	 _videoURL = flvLocation;
	 _vidDuration = vidDuration;
	 _vidXmax = vidXmax;
	 _vidYmax = vidYmax;
	 //add eventListeners to NetConnection and connect
	 _main_nc.addEventListener(NetStatusEvent.NET_STATUS,
	 onNetStatus);
	 _main_nc.addEventListener(
	 SecurityErrorEvent.SECURITY_ERROR,
	 securityErrorHandler);
	 _main_nc.connect(serverLoc);
	 }
	 private function onNetStatus(event:Object):void {
	 //handles NetConnection and NetStream status events
	 switch (event.info.code) {
	 case "NetConnection.Connect.Success":
	 //play stream if connection successful
	 connectStream();
	 break;
	 case "NetStream.Play.StreamNotFound":
	 //error if stream file not found in
	 //location specified
	 trace("Stream not found: " + _videoURL);
	 break;
	 case "NetStream.Play.Stop":
	 //do if video is stopped
	 videoPlayComplete();
	 break;
	 }
	 //trace(event.info.code);
	 }
	
	 /* -------------------Connection------------------- */
	 private function connectStream():void {
	 //netstream object
	 _ns = new NetStream(_main_nc);
	 _ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR,
	 asyncErrorHandler);
	 _ns.addEventListener(NetStatusEvent.NET_STATUS,
	 onNetStatus);
	 //other event handlers assigned
	 //to the netstream client property
	 var custom_obj:Object = new Object();
	 custom_obj.onMetaData = onMetaDataHandler;
	 custom_obj.onCuePoint = onCuePointHandler;
	 custom_obj.onPlayStatus = playStatus;
	 _ns.client = custom_obj;
	 //attach netstream to the video object
	 _video = new Video(_vidXmax,_vidYmax);
	 _video.attachNetStream(_ns);
	 //video position could be parameterized but hardcoded
	 //here to account for optional movie frame border
	 _video.x = 1;
	 _video.y = 1;
	 addChild(_video);
	 setVideoInit();
	 _ns.play(_videoURL);
	 }
	
	 /* -------------NetStream actions and events-------------- */
	 private function videoPlayComplete():void {
	 setVideoInit();
	 }
	
	 private function setVideoInit():void {
	 _ns.play(_videoURL);
	 _ns.pause();
	 _ns.seek(_vidDuration/2);
	 addStartBtn();
	 }
	 private function playStatus(event:Object):void {
	 //handles onPlayStatus complete event if available
	 switch (event.info.code) {
	 case "NetStream.Play.Complete":
	 //do if video play completes
	 videoPlayComplete();
	 break;
	 }
	 //trace(event.info.code);
	 }
	 private function playFlv(event:MouseEvent):void {
	 _ns.play(_videoURL);
	 //_ns.seek(192); //used for testing
	 removeChild(_start_btn);
	 }
	 private function pauseFlv(event:MouseEvent):void {
	 _ns.pause();
	 }
	
	 /* ---------Buttons, labels, and other assets------------- */
	 //could be placed in it's own VideoControler class
	 private function addStartBtn():void {
	 _start_btn = new Button();
	 _start_btn.width = 80;
	 _start_btn.x = (_vidXmax-_start_btn.width)/2+_video.x;
	 _start_btn.y = (_vidYmax-_start_btn.height)/2+_video.y;
	 _start_btn.label = "Start Video";
	 _start_btn.addEventListener(MouseEvent.CLICK,playFlv);
	 //addChild(_start_btn);
	 }
	
	 /* -----------------Information handlers---------------- */
	 private function onMetaDataHandler(metaInfoObj:Object):void {
	 _video.width = metaInfoObj.width;
	 _vidWidth = metaInfoObj.width;
	 _video.height = metaInfoObj.height;
	 _vidHeight = metaInfoObj.height;
	 //trace("metadata: duration=" + metaInfoObj.duration +
	 //"width=" + metaInfoObj.width + " height=" +
	 //metaInfoObj.height + " framerate=" +
	 //metaInfoObj.framerate);
	 }
	 private function onCuePointHandler(cueInfoObj:Object):void {
	 //trace("cuepoint: time=" + cueInfoObj.time + " name=" +
	 //cueInfoObj.name + " type=" + cueInfoObj.type);
	 }
	
	 /* -----------------------Error handlers------------------------ */
	 private function securityErrorHandler(event:SecurityErrorEvent):
	 void {
	 trace("securityErrorHandler: " + event);
	 }
	 private function asyncErrorHandler(event:AsyncErrorEvent):void {
	 trace(event.text);
	 }
	 }
	}
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