Flex 第四章(捕获实时视频、向实时视频中添加DVR特征)

发布时间：2020-12-15 04:33:50 所属栏目：百科来源：网络整理

导读：转：http://hi.baidu.com/airlonepig/item/8d7f33edaf91501e570f1d62 ? 第四章(捕获实时视频、向实时视频中添加DVR特征) package { ??? import flash.display.MovieClip; ??? import flash.net.NetConnection; ??? import flash.events.NetStatusEvent; ???

转：http://hi.baidu.com/airlonepig/item/8d7f33edaf91501e570f1d62

第四章(捕获实时视频、向实时视频中添加DVR特征)

package {
??? import flash.display.MovieClip;
??? import flash.net.NetConnection;
??? import flash.events.NetStatusEvent;
??? import flash.net.NetStream;
??? import flash.media.Video;
???? import flash.media.Camera;
??? import flash.media.Microphone;

??? public class PublishLive extends MovieClip
??? {
????????? var nc:NetConnection;
????????? var ns:NetStream;
????????? var nsPlayer:NetStream;
????????? var vid:Video;
????????? var vidPlayer:Video;
????????? var cam:Camera;
????????? var mic:Microphone;

????????? public function PublishLive()
??????? {
?????????????? nc = new NetConnection();
?????????????? nc.addEventListener(NetStatusEvent.NET_STATUS,onNetStatus);
?????????????? nc.connect("rtmp://localhost/publishlive");
??????? }

????????? private function onNetStatus(event:NetStatusEvent):void{
?????????????? trace(event.info.code);
?????????????? if(event.info.code == "NetConnection.Connect.Success"){
??????????????????? publishCamera();
??????????????????? displayPublishingVideo();
??????????????????? displayPlaybackVideo();
?????????????? }
????????? }

????????? private function publishCamera() {
?????????????? cam = Camera.getCamera();
?????????????? mic = Microphone.getMicrophone();
?????????????? ns = new NetStream(nc);
?????????????? ns.attachCamera(cam);
?????????????? ns.attachAudio(mic);
?????????????? ns.publish("myCamera","live");
????????? }

????????? private function displayPublishingVideo():void {
?????????????? vid = new Video(cam.width,cam.height);
?????????????? vid.x = 10;
?????????????? vid.y = 10;
?????????????? vid.attachCamera(cam);
?????????????? addChild(vid);
????????? }

????????? private function displayPlaybackVideo():void{
?????????????? nsPlayer = new NetStream(nc);
?????????????? nsPlayer.play("myCamera");
?????????????? vidPlayer = new Video(cam.width,cam.height);
?????????????? vidPlayer.x = cam.width + 20;
?????????????? vidPlayer.y = 10;
?????????????? vidPlayer.attachNetStream(nsPlayer);
?????????????? addChild(vidPlayer);
????????? }
???? }
}

向实时视频中添加DVR特征

DVR(digital video recorder)让观察者可以暂停实时视频并从暂停点恢复播放。也可以回退，播放录制的部分，跳转。

通过动态流使用DVR

为了能够绝对时间编码，在应用文件夹创建一个"Application.xml"文件，添加以下内容：

（编辑：李大同）

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