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360player.js flashblock.css mp3-player-button.js mpc.js page-player.js inlineplayer.js soundmanager2.js SoundManager2.as SoundManager2_AS3.as SoundManager2_SMSound_AS3.as

# SoundManager2_AS3.as |
--- | ---
¶ ## SoundManager 2: Javascript Sound for the Web http://schillmania.com/projects/soundmanager2/ Copyright © 2007, Scott Schiller. All rights reserved. Code licensed under the BSD License: http://www.schillmania.com/projects/soundmanager2/license.txt Flash 9 / ActionScript 3 version |
    package {

      import flash.display.Sprite;
      import flash.events.Event;
      import flash.events.IOErrorEvent;
      import flash.events.MouseEvent;
      import flash.events.SecurityErrorEvent;
      import flash.events.AsyncErrorEvent;
      import flash.events.NetStatusEvent;
      import flash.events.TimerEvent;
      import flash.external.ExternalInterface; // woo
      import flash.media.Sound;
      import flash.media.SoundChannel;
      import flash.media.SoundMixer;
      import flash.net.URLLoader;
      import flash.net.URLRequest;
      import flash.system.Security;
      import flash.system.System;
      import flash.text.TextField;
      import flash.text.TextFormat;
      import flash.text.TextFieldAutoSize;
      import flash.ui.ContextMenu;
      import flash.ui.ContextMenuItem;
      import flash.utils.setInterval;
      import flash.utils.clearInterval;
      import flash.utils.Dictionary;
      import flash.utils.Timer;

      public class SoundManager2_AS3 extends Sprite {

        public var version:String = "V2.97a.20111030";
        public var version_as:String = "(AS3/Flash 9)";
¶ Cross-domain security options HTML on foo.com loading .swf hosted on bar.com? Define your “HTML domain” here to allow JS+Flash communication to work. // allowxdomainscripting = true; // xdomain = “foo.com”; For all domains (possible security risk?), use xdomain = “”; which ends up as System.security.allowDomain(“”); When loading from HTTPS, use System.security.allowInsecureDomain(); See http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/system/Security.html#allowDomain() |
        public var allow_xdomain_scripting:Boolean = false;
        public var xdomain:String = "*";
¶ externalInterface references (for Javascript callbacks) |
        public var baseJSController:String = "soundManager";
        public var baseJSObject:String = baseJSController + ".sounds";
¶ internal objects |
        public var sounds:Array = []; // indexed string array
        public var soundObjects: Dictionary = new Dictionary(); // associative Sound() object Dictionary type
        public var timer: Timer = null;
        public var pollingEnabled: Boolean = false; // polling (timer) flag - disabled by default, enabled by JS->Flash call
        public var debugEnabled: Boolean = true; // Flash debug output enabled by default, disabled by JS call
        public var flashDebugEnabled: Boolean = false; // Flash internal debug output (write to visible SWF in browser)
        public var loaded: Boolean = false;
        public var currentObject: SoundManager2_SMSound_AS3 = null;
        public var paramList:Object = null;
        public var messages:Array = [];
        public var textField: TextField = null;
        public var textStyle: TextFormat = new TextFormat();
        public var didSandboxMessage: Boolean = false;
        public var caughtFatal: Boolean = false;

        public function SoundManager2_AS3() {

          if (allow_xdomain_scripting && xdomain) {
            Security.allowDomain(xdomain);
            version_as += ' - cross-domain enabled';
          }

          this.paramList = this.root.loaderInfo.parameters;
¶ |
          if (this.paramList['debug'] == 1) {
            this.flashDebugEnabled = true;
          }

          if (this.flashDebugEnabled) {
            var canvas: Sprite = new Sprite();
            canvas.graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
            addChild(canvas);
          }
¶ |
          flashDebug('SM2 SWF ' + version + ' ' + version_as);
¶ context menu item with version info |
          var sm2Menu:ContextMenu = new ContextMenu();
          var sm2MenuItem:ContextMenuItem = new ContextMenuItem('SoundManager ' + version + ' ' + version_as);
          sm2MenuItem.enabled = false;
          sm2Menu.customItems.push(sm2MenuItem);
          contextMenu = sm2Menu;

          if (ExternalInterface.available) {
            flashDebug('ExternalInterface available');
            try {
              flashDebug('Adding ExternalInterface callbacks...');
              ExternalInterface.addCallback('_load', _load);
              ExternalInterface.addCallback('_unload', _unload);
              ExternalInterface.addCallback('_stop', _stop);
              ExternalInterface.addCallback('_start', _start);
              ExternalInterface.addCallback('_pause', _pause);
              ExternalInterface.addCallback('_setPosition', _setPosition);
              ExternalInterface.addCallback('_setPan', _setPan);
              ExternalInterface.addCallback('_setVolume', _setVolume);
              ExternalInterface.addCallback('_setPolling', _setPolling);
              ExternalInterface.addCallback('_externalInterfaceTest', _externalInterfaceTest);
              ExternalInterface.addCallback('_disableDebug', _disableDebug);
              ExternalInterface.addCallback('_getMemoryUse', _getMemoryUse);
              ExternalInterface.addCallback('_createSound', _createSound);
              ExternalInterface.addCallback('_destroySound', _destroySound);
              ExternalInterface.addCallback('_setAutoPlay', _setAutoPlay);
            } catch(e: Error) {
              flashDebug('Fatal: ExternalInterface error: ' + e.toString());
            }
          } else {
            flashDebug('Fatal: ExternalInterface (Flash &lt;-&gt; JS) not available');
          };
¶ call after delay, to be safe (ensure callbacks are registered by the time JS is called below) |
          var timer: Timer = new Timer(20, 0);
          timer.addEventListener(TimerEvent.TIMER, function() : void {
            timer.reset();
            _externalInterfaceTest(true);
¶ timer.reset(); flashDebug(‘Init OK’); |
          });
          timer.start();
¶ delayed, see above _externalInterfaceTest(true); |
        } // SoundManager2()

        public function flashDebug (txt:String) : void {
¶ |
          messages.push(txt);
          if (this.flashDebugEnabled) {
            var didCreate: Boolean = false;
            textStyle.font = 'Arial';
            textStyle.size = 12;
¶ 320x240 if no stage dimensions (happens in IE, apparently 0 before stage resize event fires.) |
           var w:Number = this.stage.width?this.stage.width:320;
           var h:Number = this.stage.height?this.stage.height:240;
            if (textField == null) {
              didCreate = true;
              textField = new TextField();
              textField.autoSize = TextFieldAutoSize.LEFT;
              textField.x = 0;
              textField.y = 0;
              textField.multiline = true;
              textField.textColor = 0;
              textField.wordWrap = true;
            }
            textField.htmlText = messages.join('\n');
            textField.setTextFormat(textStyle);
            textField.width = w;
            textField.height = h;
            if (didCreate) {
              this.addChild(textField);
            }
          }
¶ |
        }

        public function _setAutoPlay(sID:String, autoPlay:Boolean) : void {
          var s: SoundManager2_SMSound_AS3 = soundObjects[sID];
          if (s) {
            s.setAutoPlay(autoPlay);
          }
        }
¶ ## methods |
        public function writeDebug (s:String, bTimestamp: Boolean = false) : Boolean {
          if (!debugEnabled) {
            return false;
          }
¶ |
          ExternalInterface.call(baseJSController + "['_writeDebug']", "(Flash): " + s, null, bTimestamp);
¶ |
          return true;
        }

        public function _externalInterfaceTest(isFirstCall: Boolean) : Boolean {
          var sandboxType:String = flash.system.Security['sandboxType'];
          if (!didSandboxMessage && sandboxType != 'localTrusted' && sandboxType != 'remote') {
            didSandboxMessage = true;
            flashDebug('<br><b>Fatal: Security sandbox error: Got "' + sandboxType + '", expected "remote" or "localTrusted".<br>Additional security permissions need to be granted.<br>See <a href="http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager04.html">flash security settings panel</a> for non-HTTP, eg., file:// use.</b><br>http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager04.html<br><br>You may also be able to right-click this movie and choose from the menu: <br>"Global Settings" -> "Advanced" tab -> "Trusted Location Settings"<br>');
          }
          try {
            if (isFirstCall == true) {
              flashDebug('Testing Flash -&gt; JS...');
              var d: Date = new Date();
              ExternalInterface.call(baseJSController + "._externalInterfaceOK", d.getTime());
              flashDebug('Flash -&gt; JS OK');
            } else {
              writeDebug('SM2 SWF ' + version + ' ' + version_as);
              flashDebug('JS -> Flash OK');
              ExternalInterface.call(baseJSController + "._setSandboxType", sandboxType);
              writeDebug('JS to/from Flash OK');
            }
          } catch(e: Error) {
            flashDebug('Fatal: Flash &lt;-&gt; JS error: ' + e.toString());
            writeDebug('_externalInterfaceTest: Error: ' + e.toString());
            if (!caughtFatal) {
              caughtFatal = true;
            }
            return false;
          }
          return true; // to verify that a call from JS to here, works. (eg. JS receives "true", thus OK.)
        }

        public function _disableDebug() : void {
¶ prevent future debug calls from Flash going to client (maybe improve performance) |
          writeDebug('_disableDebug()');
          debugEnabled = false;
        }

        public function checkLoadProgress(e: Event) : void {
          try {
            var oSound:Object = e.target;
            var bL: int = oSound.bytesLoaded;
            var bT: int = oSound.bytesTotal;
            var nD: int = oSound.length || oSound.duration || 0;
            var sMethod:String = baseJSObject + "['" + oSound.sID + "']._whileloading";
            ExternalInterface.call(sMethod, bL, bT, nD);
            if (bL && bT && bL != oSound.lastValues.bytes) {
              oSound.lastValues.bytes = bL;
              ExternalInterface.call(sMethod, bL, bT, nD);
            }
          } catch(e: Error) {
            writeDebug('checkLoadProgress(): ' + e.toString());
          }
        }

        public function checkSoundProgress(oSound:SoundManager2_SMSound_AS3, forceCheck:Boolean = false, forceEndCheck:Boolean = false) : void {
          var bL: int = 0;
          var bT: int = 0;
          var nD: int = 0;
          var nP: int = 0;
          var bufferLength: int = 0;
          var lP:Number = 0;
          var rP:Number = 0;
          var isBuffering:Object = null;
          var oSoundChannel: flash.media.SoundChannel = null;
          var sMethod:String = null;
          var newPeakData: Boolean = false;
          var newWaveformData: Boolean = false;
          var newEQData: Boolean = false;
          var areSoundsInaccessible: Boolean = SoundMixer.areSoundsInaccessible();
          var isPlaying: Boolean = true; // special case for NetStream when ending
          var hasNew:Boolean = false;
          var hasNewLoaded:Boolean = false;

          if (!oSound || !oSound.useEvents || oSound.failed || !oSound.connected) {
¶ edge cases for ignoring: if sounds are destructed within event handlers while checkProgress() is running, may be null |
            return;
          }

          sMethod = baseJSObject + "['" + oSound.sID + "']._whileloading";

          if (oSound.useNetstream) {
¶ Don’t do anything if there is no NetStream object yet |
            if (!oSound.ns) {
              return;
            }
¶ stream |
            bufferLength = oSound.ns.bufferLength;
            bL = oSound.ns.bytesLoaded;
            bT = oSound.ns.bytesTotal;
            nD = int(oSound.duration || 0); // can sometimes be null with short MP3s? Wack.
            nP = oSound.ns.time * 1000;

            if (oSound.paused) {
¶ special case: paused netStreams don’t update if setPosition() is called while they are paused. instead, return lastValues.position which should reflect setPosition() call. writeDebug(‘paused case, setting nP of ’+nP+‘ to -1’); writeDebug(‘lastValues: ’+oSound.lastValues.position); |
              nP = oSound.lastValues.position;
            }

            if (nP >= 0 && nP != oSound.lastValues.position) {
              oSound.lastValues.position = nP;
              hasNew = true;
            }
            if (nD > oSound.lastValues.duration) {
              oSound.lastValues.duration = nD;
              hasNew = true;
            }
            if (bL > oSound.lastValues.bytesLoaded) {
              oSound.lastValues.bytesLoaded = bL;
              hasNew = true;
            }
            if (bT > oSound.lastValues.bytes) {
              oSound.lastValues.bytes = bT;
              hasNew = true;
            }
            if (bufferLength != oSound.lastValues.bufferLength) {
              oSound.lastValues.bufferLength = bufferLength;
              hasNew = true;
            }
¶ Don’t set loaded for streams because bytesLoaded and bytesTotal are always 0 writeDebug(‘ns: time/duration, bytesloaded/total: ’+nP+‘/’+nD+‘, ’+bL+‘/’+bT); |
            if (oSound.loaded != true && nD > 0 && bL == bT && bL != 0 && bT != 0) {
¶ non-MP3 has loaded |
              oSound.loaded = true;
              try {
                ExternalInterface.call(sMethod, bL, bT, nD, bufferLength);
                ExternalInterface.call(baseJSObject + "['" + oSound.sID + "']._onload", oSound.duration > 0 ? 1 : 0);
              } catch(e: Error) {
                writeDebug('_whileLoading/_onload error: ' + e.toString());
              }
            } else if (oSound.loaded != true && hasNew) {
              ExternalInterface.call(sMethod, bL, bT, nD, bufferLength);
            }

          } else {
¶ MP3 sound |
            oSoundChannel = oSound.soundChannel;
            bL = oSound.bytesLoaded;
            bT = oSound.bytesTotal;
            nD = int(oSound.length || 0); // can sometimes be null with short MP3s? Wack.
            isBuffering = oSound.isBuffering;

            if (oSoundChannel) {
              nP = (oSoundChannel.position || 0);
              if (oSound.lastValues.loops > 1 && nP > oSound.length) {
¶ round down to nearest loop |
                var playedLoops:Number = Math.floor(nP/oSound.length);
                nP = nP - (oSound.length*playedLoops);
              }
              if (oSound.usePeakData) {
                lP = int((oSoundChannel.leftPeak) * 1000) / 1000;
                rP = int((oSoundChannel.rightPeak) * 1000) / 1000;
              } else {
                lP = 0;
                rP = 0;
              }
              } else {
¶ stopped, not loaded or feature not used |
              nP = 0;
            }

            if (forceEndCheck) {
¶ sound finish case: Ensure position is at end (sound duration), as flash 9 does not always correctly match the two. |
              if (nP < nD) {
                writeDebug('correcting sound ' + oSound.sID + ' end position ('+nP+') to length: '+ nD);
                nP = nD;
              }
            }

            if (nP != oSound.lastValues.position && nP !== 0 && !oSound.didFinish) { // once "completed", sound is locked via didFinish so no more position-type events fire.
              oSound.lastValues.position = nP;
              hasNew = true;
            }

            if (nD > oSound.lastValues.duration) { // original sound duration * number of sound loops
              oSound.lastValues.duration = nD;
              hasNew = true;
            }

            if (bL > oSound.lastValues.bytesLoaded) {
              oSound.lastValues.bytesLoaded = bL;
              hasNew = true;
            }

            if (bT > oSound.lastValues.bytes) {
              oSound.lastValues.bytes = bT;
              hasNew = true;
              hasNewLoaded = true;
            }
¶ loading progress |
            if (hasNewLoaded) {
              oSound.lastValues.bytes = bL;
              ExternalInterface.call(sMethod, bL, bT, nD);
            }

          }
¶ peak data |
          if (oSoundChannel && oSound.usePeakData) {
            if (lP != oSound.lastValues.leftPeak) {
              oSound.lastValues.leftPeak = lP;
              newPeakData = true;
            }
            if (rP != oSound.lastValues.rightPeak) {
              oSound.lastValues.rightPeak = rP;
              newPeakData = true;
            }
          }

          var newDataError:Boolean = false;
          var dataError:String;
¶ special case: Netstream may try to fire whileplaying() after finishing. check that stop hasn’t fired. |
          isPlaying = (oSound.didLoad && !oSound.paused && (!oSound.useNetstream || (oSound.useNetstream && oSound.lastNetStatus != "NetStream.Play.Stop"))); // don't update if stream has ended
¶ raw waveform + EQ spectrum data |
          if (isPlaying && oSoundChannel) { // || oSound.useNetstream)) {

            if (oSound.useWaveformData) {
              if (!areSoundsInaccessible && !oSound.handledDataError && !oSound.ignoreDataError) {
                try {
                  oSound.getWaveformData();
                } catch(e: Error) {
                  if (!oSound.handledDataError) {
                    writeDebug('getWaveformData() (waveform data) '+e.toString());
                  }
¶ oSound.useWaveformData = false; |
                  newDataError = true;
                  dataError = e.toString();
                }
              }
            }

            if (oSound.useEQData) {
              if (!areSoundsInaccessible && !oSound.handledDataError && !oSound.ignoreDataError) {
                try {
                  oSound.getEQData();
                } catch(e: Error) {
                  if (!oSound.handledDataError) {
                    writeDebug('computeSpectrum() (EQ data) '+e.toString());
                  }
¶ oSound.useEQData = false; |
                  newDataError = true;
                  dataError = e.toString();
                }
              }
            }

            if (oSound.waveformDataArray != oSound.lastValues.waveformDataArray) {
              oSound.lastValues.waveformDataArray = oSound.waveformDataArray;
              newWaveformData = true;
            }

            if (oSound.eqDataArray != oSound.lastValues.eqDataArray) {
              oSound.lastValues.eqDataArray = oSound.eqDataArray;
              newEQData = true;
            }

            if (newDataError && !oSound.handledDataError) {
              sMethod = baseJSObject + "['" + oSound.sID + "']._ondataerror";
              ExternalInterface.call(sMethod, 'data unavailable: ' + dataError);
              oSound.handledDataError = true;
            }

          }

          if (typeof nP != 'undefined' && (hasNew && (oSound.soundChannel || oSound.useNetstream || forceCheck || forceEndCheck))) { // && isPlaying - removed to allow updates while paused, eg. from setPosition() calls. Also be more liberal if we're using netStream.
¶ oSound.lastValues.position = nP; |
            sMethod = baseJSObject + "['" + oSound.sID + "']._whileplaying";
            var waveDataLeft:String = (newWaveformData ? oSound.waveformDataArray.slice(0, 256).join(',') : null);
            var waveDataRight:String = (newWaveformData ? oSound.waveformDataArray.slice(256).join(',') : null);
            var eqDataLeft:String = (newEQData ? oSound.eqDataArray.slice(0, 256).join(',') : null);
            var eqDataRight:String = (newEQData ? oSound.eqDataArray.slice(256).join(',') : null);
            ExternalInterface.call(sMethod, nP, (newPeakData ? {
              leftPeak: lP,
              rightPeak: rP
            } : null), waveDataLeft, waveDataRight, (newEQData ? {
              leftEQ: eqDataLeft,
              rightEQ: eqDataRight
            } : null));
          }
¶ check isBuffering |
          if (!oSound.useNetstream && oSound.isBuffering != oSound.lastValues.isBuffering) {
¶ property has changed |
            oSound.lastValues.isBuffering = oSound.isBuffering;
            sMethod = baseJSObject + "['" + oSound.sID + "']._onbufferchange";
            ExternalInterface.call(sMethod, oSound.isBuffering ? 1 : 0);
          }

        }

        public function checkProgress() : void {
          for (var i: int = 0, j: int = sounds.length; i < j; i++) {
            checkSoundProgress(soundObjects[sounds[i]]);
          }
        }

        public function onLoadError(oSound:Object) : void {
¶ something went wrong. 404, bad format etc. |
          ExternalInterface.call(baseJSObject + "['" + oSound.sID + "']._onload", 0);
        }

        public function onLoad(e: Event) : void {
          var oSound:Object = e.target;
          checkSoundProgress(soundObjects[oSound.sID]); // ensure progress stats are up-to-date
          if (!oSound.useNetstream) { // FLV must also have metadata
            oSound.loaded = true;
¶ force duration update (doesn’t seem to be always accurate) |
            ExternalInterface.call(baseJSObject + "['" + oSound.sID + "']._whileloading", oSound.bytesLoaded, oSound.bytesTotal, oSound.length || oSound.duration);
¶ TODO: Determine if loaded or failed – bSuccess? ExternalInterface.call(baseJSObject+“[‘”+oSound.sID+“’]._onload”,bSuccess?1:0); |
            ExternalInterface.call(baseJSObject + "['" + oSound.sID + "']._onload", 1);
          }
        }

        public function onID3(e: Event) : void {
¶ —– NOTE: BUGGY (Flash 8 only? Haven’t really checked 9 + 10.) —– TODO: Investigate holes in ID3 parsing – for some reason, Album will be populated with Date if empty and date is provided. (?) ID3V1 seem to parse OK, but “holes” / blanks in ID3V2 data seem to get messed up (eg. missing album gets filled with date.) iTunes issues: onID3 was not called with a test MP3 encoded with iTunes 7.01, and what appeared to be valid ID3V2 data. May be related to thumbnails for album art included in MP3 file by iTunes. See http://mabblog.com/blog/?p=33 |
          try {
            var oSound:Object = e.target;

            var id3Data:Array = [];
            var id3Props:Array = [];
            for (var prop:String in oSound.id3) {
              id3Props.push(prop);
              id3Data.push(oSound.id3[prop]);
¶ writeDebug(‘id3[’+prop+‘]: ’+oSound.id3[prop]); |
            }
            ExternalInterface.call(baseJSObject + "['" + oSound.sID + "']._onid3", id3Props, id3Data);
¶ unhook own event handler, prevent second call (can fire twice as data is received – ID3V2 at beginning, ID3V1 at end.) Therefore if ID3V2 data is received, ID3V1 is ignored. soundObjects[oSound.sID].onID3 = null; |
          } catch(e: Error) {
            writeDebug('onID3(): Unable to get ID3 info for ' + oSound.sID + '.');
          }
          oSound.removeEventListener(Event.ID3, onID3);
        }

        public function registerOnComplete(sID:String) : void {
          var oSound: SoundManager2_SMSound_AS3 = soundObjects[sID];
          if (oSound && oSound.soundChannel) {
            oSound.didFinish = false; // reset this flag
            oSound.soundChannel.addEventListener(Event.SOUND_COMPLETE, function() : void {
              if (oSound) {
¶ force progress check, catching special end-of-sound case where position may not match duration. |
                checkSoundProgress(oSound, true, true);
                try {
                  oSound.ignoreDataError = true; // workaround: avoid data error handling for this manual step..
¶ oSound.soundChannel.stop(); |
                  oSound.didFinish = true; // "lock" sound, prevent extra whileplaying() position-type updates
¶ call onfinish first (with end position)… |
                  ExternalInterface.call(baseJSObject + "['" + sID + "']._onfinish");
¶ then reset sound so it can be played again. oSound.start(0, 1); // go back to 0 |
                } catch(e: Error) {
                  writeDebug('Could not set position on ' + sID + ': ' + e.toString());
                }
                oSound.ignoreDataError = false; // ..and reset
                oSound.handledDataError = false; // reset this flag
              } else {
¶ safety net |
                ExternalInterface.call(baseJSObject + "['" + sID + "']._onfinish");
              }
            });
          }
        }

        public function doSecurityError(oSound: SoundManager2_SMSound_AS3, e: SecurityErrorEvent) : void {
          writeDebug('securityError: ' + e.text);
¶ when this happens, you don’t have security rights on the server containing the FLV file a crossdomain.xml file would fix the problem easily |
        }

        public function _setPosition(sID:String, nSecOffset:Number, isPaused: Boolean) : void {
          var s: SoundManager2_SMSound_AS3 = soundObjects[sID];
          if (!s) return void;
¶ writeDebug(‘_setPosition()’); |
¶ stop current channel, start new one. |
          if (s.lastValues) {
            s.lastValues.position = nSecOffset; // s.soundChannel.position;
          }
          if (s.useNetstream) {
¶ Minimize the buffer so playback starts ASAP |
            s.ns.bufferTime = s.bufferTime;
            writeDebug('setPosition: setting buffer to '+s.ns.bufferTime+' secs');

            nSecOffset = nSecOffset > 0 ? nSecOffset / 1000 : 0;
            s.ns.seek(nSecOffset);
            checkSoundProgress(s); // force UI update
          } else {
            if (s.soundChannel) {
              s.soundChannel.stop();
            }
            writeDebug('setPosition: ' + nSecOffset); // +', '+(s.lastValues.loops?s.lastValues.loops:1));
            if (s.lastValues.loops > 1 && nSecOffset != 0) {
              writeDebug('Warning: Looping functionality being disabled due to Flash limitation.');
              s.lastValues.loops = 1;
            }
            try {
              s.start(nSecOffset, s.lastValues.loops || 1); // start playing at new position
            } catch(e: Error) {
              writeDebug('Warning: Could not set position on ' + sID + ': ' + e.toString());
            }
            checkSoundProgress(s); // force UI update
            try {
              registerOnComplete(sID);
            } catch(e: Error) {
              writeDebug('_setPosition(): Could not register onComplete');
            }
            if (isPaused && s.soundChannel) {
¶ writeDebug(‘_setPosition: stopping (paused) sound’); writeDebug(‘last position: ’+s.lastValues.position+‘ vs ’+s.soundChannel.position); |
              s.soundChannel.stop();
            }
          }
        }

        public function _load(sID:String, sURL:String, bStream: Boolean, bAutoPlay: Boolean, nLoops: Number, bAutoLoad: Boolean, bCheckPolicyFile: Boolean) : void {
¶ writeDebug(‘_load()’); |
          if (typeof bAutoPlay == 'undefined') bAutoPlay = false;
          var s: SoundManager2_SMSound_AS3 = soundObjects[sID];
          if (!s) return void;
          var didRecreate: Boolean = false;
          if (s.didLoad == true) {
¶ need to recreate sound |
            didRecreate = true;
            writeDebug('recreating sound ' + sID + ' in order to load ' + sURL);
            var ns:Object = new Object();
            ns.sID = s.sID;
            ns.loops = nLoops||1;
            ns.usePeakData = s.usePeakData;
            ns.useWaveformData = s.useWaveformData;
            ns.useEQData = s.useEQData;
            ns.useNetstream = s.useNetstream;
            ns.bufferTime = s.bufferTime;
            ns.serverUrl = s.serverUrl;
            ns.duration = s.duration;
            ns.checkPolicyFile = s.checkPolicyFile;
            ns.useEvents = true;
            _destroySound(s.sID);
            _createSound(ns.sID, sURL, ns.usePeakData, ns.useWaveformData, ns.useEQData, ns.useNetstream, ns.bufferTime, ns.loops, ns.serverUrl, ns.duration, bAutoPlay, ns.useEvents, bAutoLoad, ns.checkPolicyFile);
            s = soundObjects[sID];
¶ writeDebug(‘Sound object replaced’); |
          }
          checkSoundProgress(s);

          if (!s.didLoad) {
            try {
              s.addEventListener(Event.ID3, onID3);
              s.addEventListener(Event.COMPLETE, onLoad);
            } catch(e: Error) {
              writeDebug('_load(): could not assign ID3/complete event handlers');
            }
          }
¶ don’t try to load if same request already made |
          s.sURL = sURL;

          try {
            if (!s.useNetstream) {
              s.addEventListener(IOErrorEvent.IO_ERROR, function(e: IOErrorEvent) : void {
                s.doIOError(e);
              });
            }
            s.loadSound(sURL);
          } catch(e: Error) {
¶ oh well |
            writeDebug('_load: Error loading ' + sURL + '. Flash error detail: ' + e.toString());
          }

        }

        public function _unload(sID:String) : void {
          var s: SoundManager2_SMSound_AS3 = (soundObjects[sID] || null);
          if (!s) return void;
          var sURL:String = s.sURL; // save existing sound URL for object recreation
          try {
            removeEventListener(Event.ID3, onID3);
            removeEventListener(Event.COMPLETE, onLoad);
          } catch(e: Error) {
            writeDebug('_unload() warn: Could not remove ID3/complete events');
          }
          s.paused = false;
          if (s.soundChannel) {
            s.soundChannel.stop();
          }
          try {
            if (s.didLoad && !s.loaded && !s.useNetstream) {
              s.close(); // close stream only if still loading?
            }
          } catch(e: Error) {
¶ stream may already have closed if sound loaded, etc. |
            writeDebug(sID + '._unload(): Note: Unable to close stream: ' + e.toString());
¶ oh well |
          }
¶ destroy and recreate Flash sound object, try to reclaim memory writeDebug(‘sound._unload(): recreating sound ’+sID+‘ to free memory’); |
          if (s.useNetstream) {
¶ writeDebug(‘_unload(): closing netStream stuff’); |
            try {
              s.removeNetstreamEvents();
              s.ns.close();
              s.nc.close();
¶ s.nc = null; s.ns = null; |
            } catch(e: Error) {
¶ oh well |
              writeDebug('_unload(): caught exception during netConnection/netStream close');
            }
          }
          var ns:Object = new Object();
          ns.sID = s.sID;
          ns.loops = s.loops;
          ns.usePeakData = s.usePeakData;
          ns.useWaveformData = s.useWaveformData;
          ns.useEQData = s.useEQData;
          ns.useNetstream = s.useNetstream;
          ns.bufferTime = s.bufferTime;
          ns.serverUrl = s.serverUrl;
          ns.duration = s.duration;
          ns.autoPlay = s.autoPlay;
          ns.autoLoad = s.autoLoad;
          ns.checkPolicyFile = s.checkPolicyFile;
          _destroySound(s.sID);
          _createSound(ns.sID, sURL, ns.usePeakData, ns.useWaveformData, ns.useEQData, ns.useNetstream, ns.bufferTime, ns.loops, ns.serverUrl, ns.duration, ns.autoPlay, false, ns.autoLoad, ns.checkPolicyFile); // false: don't allow events just yet
          soundObjects[sID].connected = true; // fake it?
          writeDebug(s.sID + '.unload(): ok');
        }

        public function _createSound(sID:String, sURL:String, usePeakData: Boolean, useWaveformData: Boolean, useEQData: Boolean, useNetstream: Boolean, bufferTime:Number, loops:Number, serverUrl:String, duration:Number, autoPlay:Boolean, useEvents:Boolean, autoLoad:Boolean, checkPolicyFile:Boolean) : void {
          var s: SoundManager2_SMSound_AS3 = new SoundManager2_SMSound_AS3(this, sID, sURL, usePeakData, useWaveformData, useEQData, useNetstream, bufferTime, serverUrl, duration, autoPlay, useEvents, autoLoad, checkPolicyFile);
          if (!soundObjects[sID]) {
            sounds.push(sID);
          }
          soundObjects[sID] = s;
          this.currentObject = s;
          s.sID = sID;
          s.sURL = sURL;
          s.paused = false;
          s.loaded = false;
          s.checkPolicyFile = checkPolicyFile;
          s.lastValues = {
            bytes: 0,
            duration: 0,
            position: 0,
            loops: loops||1,
            leftPeak: 0,
            rightPeak: 0,
            bufferLength: 0
          };
        }

        public function _destroySound(sID:String) : void {
¶ for the power of garbage collection! .. er, Greyskull! |
          var s: SoundManager2_SMSound_AS3 = (soundObjects[sID] || null);
          if (!s) return void;
¶ try to unload the sound |
          for (var i: int = 0, j: int = sounds.length; i < j; i++) {
            if (sounds[i] == sID) {
              sounds.splice(i, 1);
              break;
            }
          }
          if (s.soundChannel) {
            s.soundChannel.stop();
          }
¶ if is a movie, remove that as well. |
          if (s.useNetstream) {
¶ s.nc.client = null; |
            try {
              s.removeNetstreamEvents();
¶ s.nc.removeEventListener(NetStatusEvent.NET_STATUS, s.doNetStatus); |
            } catch(e: Error) {
              writeDebug('_destroySound(): Events already removed from netStream/netConnection?');
            }
            if (s.didLoad) {
¶ TODO: figure out if stream is still open first, can’t close an already-closed stream. |
              try {
                s.ns.close();
                s.nc.close();
              } catch(e: Error) {
¶ oh well |
                writeDebug('_destroySound(): caught exception: '+e.toString());
              }
            }
          } else if (s.didLoad) {
¶ non-netstream case |
            try {
              s.close(); // close stream only if still loading?
            } catch(e: Error) {
¶ oh well |
            }
          }
          s = null;
          soundObjects[sID] = null;
          delete soundObjects[sID];
        }

        public function _stop(sID:String, bStopAll: Boolean) : void {
¶ stop this particular instance (or “all”, based on parameter) |
          if (bStopAll) {
            SoundMixer.stopAll();
          } else {
            var s: SoundManager2_SMSound_AS3 = soundObjects[sID];
            if (!s) return void;
            if (s.useNetstream && s.ns) {
              s.ns.pause();
            } else if (s.soundChannel) {
              s.soundChannel.stop();
            }
            s.paused = false;
          }
        }

        public function _start(sID:String, nLoops: int, nMsecOffset: int) : void {
          var s: SoundManager2_SMSound_AS3 = soundObjects[sID];
          if (!s) return void;
          writeDebug('start: ' + nMsecOffset+(nLoops?', loops: '+nLoops:''));
          s.lastValues.paused = false; // reset pause if applicable
          s.lastValues.loops = (nLoops || 1);
          if (!s.useNetstream) {
            s.lastValues.position = nMsecOffset;
          }
          s.handledDataError = false; // reset this flag
          try {
            s.start(nMsecOffset, nLoops);
          } catch(e: Error) {
            writeDebug('Could not start ' + sID + ': ' + e.toString());
          }
          try {
            registerOnComplete(sID);
          } catch(e: Error) {
            writeDebug('_start(): registerOnComplete failed');
          }
        }

        public function _pause(sID:String) : void {
¶ writeDebug(‘_pause()’); |
          var s: SoundManager2_SMSound_AS3 = soundObjects[sID];
          if (!s) return void;
¶ writeDebug(’s.paused: ‘+s.paused); |
          if (!s.paused) {
¶ reference current position, stop sound |
            s.paused = true;
¶ writeDebug(’_pause(): position: ‘+s.lastValues.position); |
            if (s.useNetstream) {
              if (s.ns) {
                s.lastValues.position = s.ns.time*1000;
                s.ns.pause();
              } else if (s.autoPlay) {
                s.setAutoPlay(false);
              }
            } else {
              if (s.soundChannel) {
                s.lastValues.position = s.soundChannel.position;
                s.soundChannel.stop();
              }
            }
          } else {
¶ resume playing from last position writeDebug('resuming – playing at ’+s.lastValues.position+‘, ’+s.lastValues.loops+‘ times’); |
            s.paused = false;
            if (s.useNetstream) {
              s.ns.resume();
            } else {
              s.start(s.lastValues.position, s.lastValues.loops);
            }
            try {
              registerOnComplete(sID);
            } catch(e: Error) {
              writeDebug('_pause(): registerOnComplete() failed');
            }
          }
        }

        public function _setPan(sID:String, nPan:Number) : void {
          if (soundObjects[sID]) {
            soundObjects[sID].setPan(nPan);
          }
        }

        public function _setVolume(sID:String, nVol:Number) : void {
¶ writeDebug(‘_setVolume: ’+nVol); |
          if (soundObjects[sID]) {
            soundObjects[sID].setVolume(nVol);
          }
        }

        public function _setPolling(bPolling: Boolean = false, nTimerInterval: uint = 50) : void {
          pollingEnabled = bPolling;
          if (timer == null && pollingEnabled) {
            writeDebug('Enabling polling, ' + nTimerInterval + ' ms interval');
            timer = new Timer(nTimerInterval, 0);
            timer.addEventListener(TimerEvent.TIMER, function() : void {
              checkProgress();
            }); // direct reference eg. checkProgress doesn't work? .. odd.
            timer.start();
          } else if (timer && !pollingEnabled) {
            writeDebug('Disabling polling');
¶ flash.utils.clearInterval(timer); |
            timer.reset();
          }
        }

        public function _getMemoryUse() : String {
          return System.totalMemory.toString();
        }
¶ end methods |
      }
¶ package |
    }