Class for detecting microphone camera status in the Flash Actionscript 2.0 System

1 /**
2 * @ author Harrison
3 * @ data 2006-05-20
4 * @ version 1.1
5 * @ usage setting for camera and mic in FMS application
6 */
7 class SettingCheck {
8 private var video: Video;
9 private var user_cam: Camera;
10 public var addListener: Function;
11 public var removeListener: Function;
12 private var broadcastMessage: Function;
13 private static var broadcastInit: Object = AsBroadcaster. initialize
14
15 (SettingCheck. prototype );
16 public function SettingCheck (target_video: Video ){
17 video = target_video;
18 user_cam = Camera. get ();
19}
20 public function startCheck (): Void {
21 // start Detection
22 broadcastMessage ("onStarted ");
23 checkMic ();
24}
25 private function checkMic (): Void {
26 var micArray: Array = Microphone. names;
27 var camArray: Array = Camera. names;
28 if (micArray. length <1 ){
29 // No mic available for the System
30 broadcastMessage ("onMicNotFound ");
31} else {
32 if (camArray. length <1 ){
33 // The system does not have a usable cam
34 broadcastMessage ("onCamNotFound ");
35} else {
36 checkAllowable ();
37}
38}
39}
40 private function checkAllowable (): Void {
41 var owner: Object = this;
42 var user_mic: Microphone = Microphone. get ();
43 var test_nc: NetConnection = new NetConnection ();
44 test_nc.connect (null );
45 var test_ns: NetStream = new NetStream (test_nc );
46 test_ns.attachAudio (user_mic );
47 user_mic.onStatus = function (infoObj ){
48 trace (infoObj. code );
49 if (infoObj. code = "Microphone. Unmuted "){
50 test_ns.attachAudio (null );
51 test_ns.close ();
52 owner. checkCamBusy ();
53} else {
54 // The use of mic and cam is forbidden by the user
55 owner. broadcastMessage ("onCamBlockedByUser ");
56}
57 };
58 if (user_mic.muted | user_cam.muted ){
59 // currently, mic and cam cannot be used.
60 broadcastMessage ("onCamBlocked ");
61} else {
62 test_ns.attachAudio (null );
63 test_ns.close ();
64 checkCamBusy ();
65}
66}
67 private function checkCamBusy (): Void {
68 // cam is currently occupied by other video programs
69 broadcastMessage ("onCheckCamBusy ");
70 video. attachVideo (user_cam );
71 var owner: Object = this;
72 var chkTime: Number = 0;
73 var intervalID: Number;
74 function callback (){
75 trace (owner. user_cam.currentFps );
76 if (owner. user_cam.currentFps> 0 ){
77 owner. broadcastMessage ("onFinished ");
78 clearInterval (intervalID );
79} else {
80 chkTime ++;
81 if (chkTime> 30 ){
82 owner. broadcastMessage ("onCamBusy ");
83 clearInterval (intervalID );
84}
85}
86}
87 intervalID = setInterval (callback, 50 );
88}
89}
90