Flex getting started instance-online recording of FLV videos with fms3

I used to think that video recording was a very troublesome task. I had to study the FMS during the past two days. I didn't expect it to be so easy to use the FMS and flex. I just studied this dd, some internal mechanisms are not fully understood. If it is not accurate enough or incorrect, you are welcome to make a brick and talk about its principles first: flex uses the rtmp protocol to establish a connection with the SSP, that is, the server. The biggest difference between rtmp and HTTP is that rtmp is a stateful protocol that not only can maintain a connection with the client, in addition, it can monitor the client's behavior and actively interact with it, while HTTP is a stateless protocol. When the client initiates a request and the server completes the response, a session passes Program It's over. in Flex, The netconnection and netstream classes are mainly used. If you have programming experience, you can see what these two guys are doing. I won't say much about it. first look Code Right: In comments: Java code <? XML version = "1.0" encoding = "UTF-8"?> <Mx: Application xmlns: MX = "http://www.adobe.com/2006/mxml" layout = "absolute" creationcomplete = "initapp ();"> <mx: SCRIPT> <! [CDATA [import MX. messaging. errors. nochannelavailableerror; private var NC: netconnection; private var ns: netstream; private var rtmpnow: string; private var MSG: Boolean; private var metasnifer: object; private var dur: number; private var cam: Camera; private var mic: microphone; private var vid1: Video; Private function initapp (): void {// initialize a network connection NC = new netconnection (); // Add an event for this connection. This event returns the connection status NC. addeventlistener (netstatusevent. net_status, checkconnect); // This is the connection address. In fact, in the installation directory of your FMS, create a vid2 folder under applications, this folder can be viewed as your project name. // recordings is the folder for storing videos during video recording. rtmpnow = "rtmp: // localhost/vid2/recordings "; // start connecting to NC. connect (rtmpnow); addmedia ();} private function checkconnect (Event: netstatusevent): void {// determine whether the connection is established successfully based on the status information returned by the connection. MSG = (event.info. code = "netconnection. connect. success "); msgerror. TEXT = event.info. code; If (MSG) {// If successful, use some connections to create a stream for future recording and transmission data NS = new netstream (NC); msgerror. TEXT = "establish netstream" ;}} private function startrecord (E: Event): void {If (NS) {msgerror. TEXT = "start record"; // The micphone and camera NS must be loaded when the recording starts. attachaudio (MIC); NS. attachcamera (CAM); // This is the key. Recording starts from here, and input. text is the name of the recorded video file ns. publish (input. text, "record") ;}} private function stop (Event: Event): void {// similar to Java, you must remember to disable Ns for stream-class things. play (false); NS. close (); msgerror. TEXT = "stop";} private function addmedia (): void {// obtain the System camera cam = camera. getcamera (); // set the width, height, and frame cam. setmode (240,180, 24); // sets the video quality cam. setquality (); // obtain the system's microphone MIC = microphone. getmicrophone (); // Let videodisplay load the camera vv. attachcamera (CAM); msgerror. TEXT = "initnize";}]> </MX: SCRIPT> <mx: vbox id = "myvb"> <mx: videodisplay id = "VV" width = "400" Height = "300"/> <mx: button label = "record" id = "BTN" Click = "startrecord (event ); "/> <mx: button label =" play "id =" stopbtn "Click =" Stop (event); "/> <mx: textinput id = "input"/> <mx: textarea id = "msgerror" backgroundcolor = "red"/> </MX: vbox> </MX: Application>