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<h1>SoundManager2_SMSound_AS3.as</h1>
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<div class="content"><div class='highlight'><pre><span class="comment">/**
* SoundManager 2: Javascript Sound for the Web
* ----------------------------------------------
* http://schillmania.com/projects/soundmanager2/
*
* Copyright (c) 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
*/</span>
<span class="package"><span class="keyword">package</span> {</span>
<span class="preprocessor"><span class="keyword">import</span> flash.external.*;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.events.*;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.media.Sound;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.media.SoundChannel;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.media.SoundLoaderContext;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.media.SoundTransform;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.media.SoundMixer;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.net.URLRequest;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.utils.ByteArray;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.utils.getTimer;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.net.NetConnection;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.net.NetStream;</span>
<span class="preprocessor"><span class="keyword">import</span> flash.net.Responder;</span>
<span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">SoundManager2_SMSound_AS3</span> <span class="keyword">extends</span> <span class="title">Sound</span> {</span>
<span class="keyword">public</span> <span class="keyword">var</span> sm: SoundManager2_AS3 = <span class="literal">null</span>;</pre></div></div>
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<p>externalInterface references (for Javascript callbacks)</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">public</span> <span class="keyword">var</span> baseJSController: String = <span class="string">"soundManager"</span>;
<span class="keyword">public</span> <span class="keyword">var</span> baseJSObject: String = baseJSController + <span class="string">".sounds"</span>;
<span class="keyword">public</span> <span class="keyword">var</span> soundChannel: SoundChannel = <span class="keyword">new</span> SoundChannel();
<span class="keyword">public</span> <span class="keyword">var</span> urlRequest: URLRequest;
<span class="keyword">public</span> <span class="keyword">var</span> soundLoaderContext: SoundLoaderContext;
<span class="keyword">public</span> <span class="keyword">var</span> waveformData: ByteArray = <span class="keyword">new</span> ByteArray();
<span class="keyword">public</span> <span class="keyword">var</span> waveformDataArray: Array = [];
<span class="keyword">public</span> <span class="keyword">var</span> eqData: ByteArray = <span class="keyword">new</span> ByteArray();
<span class="keyword">public</span> <span class="keyword">var</span> eqDataArray: Array = [];
<span class="keyword">public</span> <span class="keyword">var</span> usePeakData: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> useWaveformData: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> useEQData: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> sID: String;
<span class="keyword">public</span> <span class="keyword">var</span> sURL: String;
<span class="keyword">public</span> <span class="keyword">var</span> didFinish: Boolean;
<span class="keyword">public</span> <span class="keyword">var</span> loaded: Boolean;
<span class="keyword">public</span> <span class="keyword">var</span> connected: Boolean;
<span class="keyword">public</span> <span class="keyword">var</span> failed: Boolean;
<span class="keyword">public</span> <span class="keyword">var</span> paused: Boolean;
<span class="keyword">public</span> <span class="keyword">var</span> finished: Boolean;
<span class="keyword">public</span> <span class="keyword">var</span> duration: Number;
<span class="keyword">public</span> <span class="keyword">var</span> handledDataError: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> ignoreDataError: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> autoPlay: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> autoLoad: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> pauseOnBufferFull: Boolean = <span class="literal">false</span>; <span class="comment">// only applies to RTMP</span>
<span class="keyword">public</span> <span class="keyword">var</span> loops: Number = <span class="number">1</span>;
<span class="keyword">public</span> <span class="keyword">var</span> lastValues: Object = {
bytes: <span class="number">0</span>,
position: <span class="number">0</span>,
duration: <span class="number">0</span>,
volume: <span class="number">100</span>,
pan: <span class="number">0</span>,
loops: <span class="number">1</span>,
leftPeak: <span class="number">0</span>,
rightPeak: <span class="number">0</span>,
waveformDataArray: <span class="literal">null</span>,
eqDataArray: <span class="literal">null</span>,
isBuffering: <span class="literal">null</span>,
bufferLength: <span class="number">0</span>
};
<span class="keyword">public</span> <span class="keyword">var</span> didLoad: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> useEvents: Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="keyword">var</span> sound: Sound = <span class="keyword">new</span> Sound();
<span class="keyword">public</span> <span class="keyword">var</span> cc: Object;
<span class="keyword">public</span> <span class="keyword">var</span> nc: NetConnection;
<span class="keyword">public</span> <span class="keyword">var</span> ns: NetStream = <span class="literal">null</span>;
<span class="keyword">public</span> <span class="keyword">var</span> st: SoundTransform;
<span class="keyword">public</span> <span class="keyword">var</span> useNetstream: Boolean;
<span class="keyword">public</span> <span class="keyword">var</span> bufferTime: Number = <span class="number">3</span>; <span class="comment">// previously 0.1</span>
<span class="keyword">public</span> <span class="keyword">var</span> lastNetStatus: String = <span class="literal">null</span>;
<span class="keyword">public</span> <span class="keyword">var</span> serverUrl: String = <span class="literal">null</span>;
<span class="keyword">public</span> <span class="keyword">var</span> checkPolicyFile:Boolean = <span class="literal">false</span>;
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">SoundManager2_SMSound_AS3</span><span class="params">(oSoundManager: SoundManager2_AS3, sIDArg: String = null, sURLArg: String = null, usePeakData: Boolean = false, useWaveformData: Boolean = false, useEQData: Boolean = false, useNetstreamArg: Boolean = false, netStreamBufferTime: Number = 1, serverUrl: String = null, duration: Number = 0, autoPlay: Boolean = false, useEvents: Boolean = false, autoLoad: Boolean = false, checkPolicyFile: Boolean = false)</span> {</span>
<span class="keyword">this</span>.sm = oSoundManager;
<span class="keyword">this</span>.sID = sIDArg;
<span class="keyword">this</span>.sURL = sURLArg;
<span class="keyword">this</span>.usePeakData = usePeakData;
<span class="keyword">this</span>.useWaveformData = useWaveformData;
<span class="keyword">this</span>.useEQData = useEQData;
<span class="keyword">this</span>.urlRequest = <span class="keyword">new</span> URLRequest(sURLArg);
<span class="keyword">this</span>.didFinish = <span class="literal">false</span>;
<span class="keyword">this</span>.loaded = <span class="literal">false</span>;
<span class="keyword">this</span>.connected = <span class="literal">false</span>;
<span class="keyword">this</span>.failed = <span class="literal">false</span>;
<span class="keyword">this</span>.finished = <span class="literal">false</span>;
<span class="keyword">this</span>.soundChannel = <span class="literal">null</span>;
<span class="keyword">this</span>.lastNetStatus = <span class="literal">null</span>;
<span class="keyword">this</span>.useNetstream = useNetstreamArg;
<span class="keyword">this</span>.serverUrl = serverUrl;
<span class="keyword">this</span>.duration = duration;
<span class="keyword">this</span>.useEvents = useEvents;
<span class="keyword">this</span>.autoLoad = autoLoad;
<span class="keyword">if</span> (netStreamBufferTime) {
<span class="keyword">this</span>.bufferTime = netStreamBufferTime;
}
<span class="keyword">this</span>.checkPolicyFile = checkPolicyFile;
writeDebug(<span class="string">'SoundManager2_SMSound_AS3: Got duration: '</span>+duration+<span class="string">', autoPlay: '</span>+autoPlay);
<span class="keyword">if</span> (<span class="keyword">this</span>.useNetstream) {</pre></div></div>
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<p>Pause on buffer full if auto-loading an RTMP stream</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (<span class="keyword">this</span>.serverUrl &amp;&amp; <span class="keyword">this</span>.autoLoad) {
<span class="keyword">this</span>.pauseOnBufferFull = <span class="literal">true</span>;
}
<span class="keyword">this</span>.cc = <span class="keyword">new</span> Object();
<span class="keyword">this</span>.nc = <span class="keyword">new</span> NetConnection();</pre></div></div>
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<p>Handle FMS bandwidth check callback.
@see onBWDone
@see <a href="http://www.adobe.com/devnet/flashmediaserver/articles/dynamic_stream_switching_04.html">http://www.adobe.com/devnet/flashmediaserver/articles/dynamic_stream_switching_04.html</a>
@see <a href="http://www.johncblandii.com/index.php/2007/12/fms-a-quick-fix-for-missing-onbwdone-onfcsubscribe-etc.html">http://www.johncblandii.com/index.php/2007/12/fms-a-quick-fix-for-missing-onbwdone-onfcsubscribe-etc.html</a></p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.nc.client = <span class="keyword">this</span>;</pre></div></div>
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<p>TODO: security/IO error handling
this.nc.addEventListener(SecurityErrorEvent.SECURITY_ERROR, doSecurityError);</p>
</div>
<div class="content"><div class='highlight'><pre> nc.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
<span class="keyword">if</span> (<span class="keyword">this</span>.serverUrl != <span class="literal">null</span>) {
writeDebug(<span class="string">'SoundManager2_SMSound_AS3: NetConnection: connecting to server '</span> + <span class="keyword">this</span>.serverUrl + <span class="string">'...'</span>);
}
<span class="keyword">this</span>.nc.connect(serverUrl);
} <span class="keyword">else</span> {
<span class="keyword">this</span>.connected = <span class="literal">true</span>;
}
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">rtmpResponder</span><span class="params">(result:Object)</span><span class="type">:void</span> {</span></pre></div></div>
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<p>callback from Flash Media Server (RTMP) for &#39;getStreamLength&#39; server-side method - result should be a floating-point.
<a href="http://help.adobe.com/en_US/FlashMediaServer/3.5_Deving/WS5b3ccc516d4fbf351e63e3d11a0773d117-7ffe.html">http://help.adobe.com/en_US/FlashMediaServer/3.5_Deving/WS5b3ccc516d4fbf351e63e3d11a0773d117-7ffe.html</a></p>
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<div class="content"><div class='highlight'><pre> writeDebug(<span class="string">'RTMP server getStreamLength() response: '</span> + result);</pre></div></div>
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<p>we now know the duration. type cast to floating-point - this will update JS-land during whileloading() / whileplaying().</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.duration = Number(result) * <span class="number">1000</span>;
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">netStatusHandler</span><span class="params">(event:NetStatusEvent)</span><span class="type">:void</span> {</span>
<span class="keyword">if</span> (<span class="keyword">this</span>.useEvents) {
writeDebug(<span class="string">'netStatusHandler: '</span>+event.info.code);
}
<span class="keyword">switch</span> (event.info.code) {
<span class="keyword">case</span> <span class="string">"NetConnection.Connect.Success"</span>:
<span class="keyword">try</span> {
<span class="keyword">this</span>.ns = <span class="keyword">new</span> NetStream(<span class="keyword">this</span>.nc);
<span class="keyword">this</span>.ns.checkPolicyFile = <span class="keyword">this</span>.checkPolicyFile;</pre></div></div>
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<p>bufferTime reference: <a href="http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/net/NetStream.html#bufferTime">http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/net/NetStream.html#bufferTime</a></p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.ns.bufferTime = <span class="keyword">this</span>.bufferTime; <span class="comment">// set to 0.1 or higher. 0 is reported to cause playback issues with static files.</span>
<span class="keyword">this</span>.st = <span class="keyword">new</span> SoundTransform();
<span class="keyword">this</span>.cc.onMetaData = <span class="keyword">this</span>.onMetaData;
<span class="keyword">this</span>.cc.setCaption = <span class="keyword">this</span>.captionHandler;
<span class="keyword">this</span>.ns.client = <span class="keyword">this</span>.cc;
<span class="keyword">this</span>.ns.receiveAudio(<span class="literal">true</span>);
<span class="keyword">this</span>.addNetstreamEvents();
<span class="keyword">this</span>.connected = <span class="literal">true</span>;</pre></div></div>
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<p>RTMP-only</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (<span class="keyword">this</span>.serverUrl &amp;&amp; <span class="keyword">this</span>.useEvents) {
<span class="keyword">var</span> responder:Responder = <span class="keyword">new</span> Responder(rtmpResponder);</pre></div></div>
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<p>call a method on server to get the length of the stream (like onMetaData, but Flash Media Server-specific)
Red5 and other RTMP servers appear to provide duration via onMetaData event(s) in the stream.
<a href="http://help.adobe.com/en_US/FlashMediaServer/3.5_Deving/WS5b3ccc516d4fbf351e63e3d11a0773d117-7ffe.html">http://help.adobe.com/en_US/FlashMediaServer/3.5_Deving/WS5b3ccc516d4fbf351e63e3d11a0773d117-7ffe.html</a></p>
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<div class="content"><div class='highlight'><pre> nc.call(<span class="string">'getStreamLength'</span>, responder, <span class="keyword">this</span>.sURL);
writeDebug(<span class="string">'NetConnection: connected'</span>);
writeDebug(<span class="string">'firing _onconnect for '</span>+<span class="keyword">this</span>.sID);
ExternalInterface.call(<span class="keyword">this</span>.sm.baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onconnect"</span>, <span class="number">1</span>);
}
} <span class="keyword">catch</span>(e: Error) {
<span class="keyword">this</span>.failed = <span class="literal">true</span>;
writeDebug(<span class="string">'netStream error: '</span> + e.toString());
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onfailure"</span>, <span class="string">'Connection failed!'</span>, event.info.level, event.info.code);
}
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="string">"NetStream.Play.StreamNotFound"</span>:
<span class="keyword">this</span>.failed = <span class="literal">true</span>;
writeDebug(<span class="string">"NetConnection: Stream not found!"</span>);
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onfailure"</span>, <span class="string">'Stream not found!'</span>, event.info.level, event.info.code);
<span class="keyword">break</span>;</pre></div></div>
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<p>This is triggered when the sound loses the connection with the server.
In some cases one could just try to reconnect to the server and resume playback.
However for streams protected by expiring tokens, I don&#39;t think that will work.</p>
<p>Flash says that this is not an error code, but a status code...
should this call the onFailure handler?</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">case</span> <span class="string">"NetConnection.Connect.Closed"</span>:
<span class="keyword">this</span>.failed = <span class="literal">true</span>;
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onfailure"</span>, <span class="string">'Connection closed!'</span>, event.info.level, event.info.code);
writeDebug(<span class="string">"NetConnection: Connection closed!"</span>);
<span class="keyword">break</span>;</pre></div></div>
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<p>Couldn&#39;t establish a connection with the server. Attempts to connect to the server
can also fail if the permissible number of socket connections on either the client
or the server computer is at its limit. This also happens when the internet
connection is lost.</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">case</span> <span class="string">"NetConnection.Connect.Failed"</span>:
<span class="keyword">this</span>.failed = <span class="literal">true</span>;
writeDebug(<span class="string">"NetConnection: Connection failed! Lost internet connection? Try again... Description: "</span> + event.info.description);
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onfailure"</span>, <span class="string">'Connection failed!'</span>, event.info.level, event.info.code);
<span class="keyword">break</span>;</pre></div></div>
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<p>A change has occurred to the network status. This could mean that the network
connection is back, or it could mean that it has been lost...just try to resume
playback.</p>
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<p>KJV: Can&#39;t use this yet because by the time you get your connection back the
song has reached it&#39;s maximum retries, so it doesn&#39;t retry again. We need
a new _ondisconnect handler.
case &quot;NetConnection.Connect.NetworkChange&quot;:
this.failed = true;
writeDebug(&quot;NetConnection: Network connection status changed&quot;);
ExternalInterface.call(baseJSObject + &quot;[&#39;&quot; + this.sID + &quot;&#39;]._onfailure&quot;, &#39;Reconnecting...&#39;);
break;</p>
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<p>Consider everything else a failure...</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">default</span>:
<span class="keyword">this</span>.failed = <span class="literal">true</span>;
writeDebug(<span class="string">"NetConnection: got unhandled code '"</span> + event.info.code + <span class="string">"'! Description: "</span> + event.info.description);
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onfailure"</span>, <span class="string">''</span>, event.info.level, event.info.code);
<span class="keyword">break</span>;
}
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">writeDebug</span> <span class="params">(s: String, logLevel: Number = 0)</span> <span class="type">: Boolean</span> {</span>
<span class="keyword">return</span> <span class="keyword">this</span>.sm.writeDebug (s,logLevel); <span class="comment">// defined in main SM object</span>
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">onMetaData</span><span class="params">(infoObject: Object)</span> <span class="type">: void</span> {</span>
<span class="keyword">var</span> prop:String;
<span class="keyword">if</span> (sm.debugEnabled) {
<span class="keyword">var</span> data:String = <span class="keyword">new</span> String();
<span class="keyword">for</span> (prop <span class="keyword">in</span> infoObject) {
data += prop+<span class="string">': '</span>+infoObject[prop]+<span class="string">' \n'</span>;
}
writeDebug(<span class="string">'Metadata: '</span>+data);
}
<span class="keyword">this</span>.duration = infoObject.duration * <span class="number">1000</span>;
<span class="keyword">if</span> (!<span class="keyword">this</span>.loaded) {</pre></div></div>
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<p>writeDebug(&#39;not loaded yet: &#39;+this.ns.bytesLoaded+&#39;, &#39;+this.ns.bytesTotal+&#39;, &#39;+infoObject.duration<em>1000);
TODO: investigate loaded/total values
ExternalInterface.call(baseJSObject + &quot;[&#39;&quot; + this.sID + &quot;&#39;]._whileloading&quot;, this.ns.bytesLoaded, this.ns.bytesTotal, infoObject.duration</em>1000);</p>
</div>
<div class="content"><div class='highlight'><pre> ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._whileloading"</span>, <span class="keyword">this</span>.bytesLoaded, <span class="keyword">this</span>.bytesTotal, (<span class="keyword">this</span>.duration || infoObject.duration))
}
<span class="keyword">var</span> metaData:Array = [];
<span class="keyword">var</span> metaDataProps:Array = [];
<span class="keyword">for</span> (prop <span class="keyword">in</span> infoObject) {
metaData.push(prop);
metaDataProps.push(infoObject[prop]);
}</pre></div></div>
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<p>pass infoObject to _onmetadata, too</p>
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<div class="content"><div class='highlight'><pre> ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onmetadata"</span>, metaData, metaDataProps);</pre></div></div>
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<p>this handler may fire multiple times, eg., when a song changes while playing an RTMP stream.</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (!<span class="keyword">this</span>.serverUrl) {</pre></div></div>
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<p>disconnect for non-RTMP cases, since multiple firings may mess up duration.</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.cc.onMetaData = <span class="keyword">function</span>(infoObject: Object) : <span class="keyword">void</span> {}
}
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">captionHandler</span><span class="params">(infoObject: Object)</span> <span class="type">: void</span> {</span>
<span class="keyword">if</span> (sm.debugEnabled) {
<span class="keyword">var</span> data:String = <span class="keyword">new</span> String();
<span class="keyword">for</span> (<span class="keyword">var</span> prop:* <span class="keyword">in</span> infoObject) {
data += prop+<span class="string">': '</span>+infoObject[prop]+<span class="string">' \n'</span>;
}
writeDebug(<span class="string">'Caption: '</span>+data);
}</pre></div></div>
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<p>null this out for the duration of this object&#39;s existence.
it may be called multiple times.
this.cc.setCaption = function(infoObject: Object) : void {}</p>
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<p>writeDebug(&#39;Caption\n&#39;+infoObject[&#39;dynamicMetadata&#39;]);
writeDebug(&#39;firing _oncaptiondata for &#39;+this.sID);</p>
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<div class="content"><div class='highlight'><pre>
ExternalInterface.call(<span class="keyword">this</span>.sm.baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._oncaptiondata"</span>, infoObject[<span class="string">'dynamicMetadata'</span>]);
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">getWaveformData</span><span class="params">()</span> <span class="type">: void</span> {</span></pre></div></div>
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<p><a href="http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/SoundMixer.html#computeSpectrum(">http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/SoundMixer.html#computeSpectrum(</a>)</p>
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<div class="content"><div class='highlight'><pre> SoundMixer.computeSpectrum(<span class="keyword">this</span>.waveformData, <span class="literal">false</span>, <span class="number">0</span>); <span class="comment">// sample wave data at 44.1 KHz</span>
<span class="keyword">this</span>.waveformDataArray = [];
<span class="keyword">for</span> (<span class="keyword">var</span> i: int = <span class="number">0</span>, j: int = <span class="keyword">this</span>.waveformData.length / <span class="number">4</span>; i &lt; j; i++) { <span class="comment">// get all 512 values (256 per channel)</span>
<span class="keyword">this</span>.waveformDataArray.push(int(<span class="keyword">this</span>.waveformData.readFloat() * <span class="number">1000</span>) / <span class="number">1000</span>);
}
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">getEQData</span><span class="params">()</span> <span class="type">: void</span> {</span></pre></div></div>
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<p><a href="http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/SoundMixer.html#computeSpectrum(">http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/SoundMixer.html#computeSpectrum(</a>)</p>
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<div class="content"><div class='highlight'><pre> SoundMixer.computeSpectrum(<span class="keyword">this</span>.eqData, <span class="literal">true</span>, <span class="number">0</span>); <span class="comment">// sample EQ data at 44.1 KHz</span>
<span class="keyword">this</span>.eqDataArray = [];
<span class="keyword">for</span> (<span class="keyword">var</span> i: int = <span class="number">0</span>, j: int = <span class="keyword">this</span>.eqData.length / <span class="number">4</span>; i &lt; j; i++) { <span class="comment">// get all 512 values (256 per channel)</span>
<span class="keyword">this</span>.eqDataArray.push(int(<span class="keyword">this</span>.eqData.readFloat() * <span class="number">1000</span>) / <span class="number">1000</span>);
}
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">start</span><span class="params">(nMsecOffset: int, nLoops: int, allowMultiShot:Boolean)</span> <span class="type">: Boolean</span> {</span>
<span class="keyword">this</span>.useEvents = <span class="literal">true</span>;
<span class="keyword">if</span> (<span class="keyword">this</span>.useNetstream) {
writeDebug(<span class="string">"SMSound::start nMsecOffset "</span>+ nMsecOffset+ <span class="string">' nLoops '</span>+nLoops + <span class="string">' current bufferTime '</span>+<span class="keyword">this</span>.ns.bufferTime+<span class="string">' current bufferLength '</span>+<span class="keyword">this</span>.ns.bufferLength+ <span class="string">' this.lastValues.position '</span>+<span class="keyword">this</span>.lastValues.position);</pre></div></div>
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<p>mark for later Netstream.Play.Stop / sound completion</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.finished = <span class="literal">false</span>;
<span class="keyword">this</span>.cc.onMetaData = <span class="keyword">this</span>.onMetaData;</pre></div></div>
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<p>Don&#39;t seek if we don&#39;t have to because it destroys the buffer</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">var</span> set_position:Boolean = <span class="keyword">this</span>.lastValues.position != <span class="literal">null</span> &amp;&amp; <span class="keyword">this</span>.lastValues.position != nMsecOffset;
<span class="keyword">if</span> (set_position) {</pre></div></div>
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<p>Minimize the buffer so playback starts ASAP</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.ns.bufferTime = <span class="keyword">this</span>.bufferTime;
}
<span class="keyword">if</span> (<span class="keyword">this</span>.paused) {
writeDebug(<span class="string">'start: resuming from paused state'</span>);
<span class="keyword">this</span>.ns.resume(); <span class="comment">// get the sound going again</span>
<span class="keyword">if</span> (!<span class="keyword">this</span>.didLoad) {
<span class="keyword">this</span>.didLoad = <span class="literal">true</span>;
}
<span class="keyword">this</span>.paused = <span class="literal">false</span>;
} <span class="keyword">else</span> <span class="keyword">if</span> (!<span class="keyword">this</span>.didLoad) {
writeDebug(<span class="string">'start: !didLoad - playing '</span>+<span class="keyword">this</span>.sURL);
<span class="keyword">this</span>.ns.play(<span class="keyword">this</span>.sURL);
<span class="keyword">this</span>.pauseOnBufferFull = <span class="literal">false</span>; <span class="comment">// SAS: playing behaviour overrides buffering behaviour</span>
<span class="keyword">this</span>.didLoad = <span class="literal">true</span>;
<span class="keyword">this</span>.paused = <span class="literal">false</span>;
} <span class="keyword">else</span> {</pre></div></div>
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<p>previously loaded, perhaps stopped/finished. play again?</p>
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<div class="content"><div class='highlight'><pre> writeDebug(<span class="string">'playing again (not paused, didLoad = true)'</span>);
<span class="keyword">this</span>.pauseOnBufferFull = <span class="literal">false</span>;
<span class="keyword">this</span>.ns.play(<span class="keyword">this</span>.sURL);
}</pre></div></div>
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<p>KJV seek after calling play otherwise some streams get a NetStream.Seek.Failed
Should only apply to the !didLoad case, but do it for all for simplicity.
nMsecOffset is in milliseconds for streams but in seconds for progressive
download.</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (set_position) {
<span class="keyword">this</span>.ns.seek(<span class="keyword">this</span>.serverUrl ? nMsecOffset / <span class="number">1000</span> : nMsecOffset);
<span class="keyword">this</span>.lastValues.position = nMsecOffset; <span class="comment">// https://gist.github.com/1de8a3113cf33d0cff67</span>
}</pre></div></div>
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<p>this.ns.addEventListener(Event.SOUND_COMPLETE, _onfinish);</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.applyTransform();
} <span class="keyword">else</span> {</pre></div></div>
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<p>writeDebug(&#39;start: seeking to &#39;+nMsecOffset+&#39;, &#39;+nLoops+(nLoops==1?&#39; loop&#39;:&#39; loops&#39;));</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (!<span class="keyword">this</span>.soundChannel || allowMultiShot) {
<span class="keyword">this</span>.soundChannel = <span class="keyword">this</span>.play(nMsecOffset, nLoops);
<span class="keyword">this</span>.addEventListener(Event.SOUND_COMPLETE, _onfinish);
<span class="keyword">this</span>.applyTransform();
} <span class="keyword">else</span> {</pre></div></div>
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<p>writeDebug(&#39;start: was already playing, no-multishot case. Seeking to &#39;+nMsecOffset+&#39;, &#39;+nLoops+(nLoops==1?&#39; loop&#39;:&#39; loops&#39;));
already playing and no multi-shot allowed, so re-start and set position</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (<span class="keyword">this</span>.soundChannel) {
<span class="keyword">this</span>.soundChannel.stop();
}
<span class="keyword">this</span>.soundChannel = <span class="keyword">this</span>.play(nMsecOffset, nLoops); <span class="comment">// start playing at new position</span>
<span class="keyword">this</span>.addEventListener(Event.SOUND_COMPLETE, _onfinish);
<span class="keyword">this</span>.applyTransform();
}
}</pre></div></div>
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<p>if soundChannel is null (and not a netStream), there is no sound card (or 32-channel ceiling has been hit.)
<a href="http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/media/Sound.html#play%28%29">http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/media/Sound.html#play%28%29</a></p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">return</span> (!<span class="keyword">this</span>.useNetstream &amp;&amp; <span class="keyword">this</span>.soundChannel === <span class="literal">null</span> ? <span class="literal">false</span> : <span class="literal">true</span>);
}
<span class="keyword">private</span> <span class="function"><span class="keyword">function</span> <span class="title">_onfinish</span><span class="params">()</span> <span class="type">: void</span> {</span>
<span class="keyword">this</span>.removeEventListener(Event.SOUND_COMPLETE, _onfinish);
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">loadSound</span><span class="params">(sURL: String)</span> <span class="type">: void</span> {</span>
<span class="keyword">if</span> (<span class="keyword">this</span>.useNetstream) {
<span class="keyword">this</span>.useEvents = <span class="literal">true</span>;
<span class="keyword">if</span> (<span class="keyword">this</span>.didLoad != <span class="literal">true</span>) {
<span class="keyword">this</span>.ns.play(<span class="keyword">this</span>.sURL); <span class="comment">// load streams by playing them</span>
<span class="keyword">if</span> (!<span class="keyword">this</span>.autoPlay) {
<span class="keyword">this</span>.pauseOnBufferFull = <span class="literal">true</span>;
}
<span class="keyword">this</span>.paused = <span class="literal">false</span>;
}</pre></div></div>
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<p>this.addEventListener(Event.SOUND_COMPLETE, _onfinish);</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.applyTransform();
} <span class="keyword">else</span> {
<span class="keyword">try</span> {
<span class="keyword">this</span>.didLoad = <span class="literal">true</span>;
<span class="keyword">this</span>.urlRequest = <span class="keyword">new</span> URLRequest(sURL);
<span class="keyword">this</span>.soundLoaderContext = <span class="keyword">new</span> SoundLoaderContext(<span class="number">1000</span>, <span class="keyword">this</span>.checkPolicyFile); <span class="comment">// check for policy (crossdomain.xml) file on remote domains - http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/SoundLoaderContext.html</span>
<span class="keyword">this</span>.load(<span class="keyword">this</span>.urlRequest, <span class="keyword">this</span>.soundLoaderContext);
} <span class="keyword">catch</span>(e: Error) {
writeDebug(<span class="string">'error during loadSound(): '</span> + e.toString());
}
}
}</pre></div></div>
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<p>Set the value of autoPlay</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">setAutoPlay</span><span class="params">(autoPlay: Boolean)</span> <span class="type">: void</span> {</span>
<span class="keyword">if</span> (!<span class="keyword">this</span>.serverUrl) {
<span class="keyword">this</span>.autoPlay = autoPlay;
} <span class="keyword">else</span> {
<span class="keyword">this</span>.autoPlay = autoPlay;
<span class="keyword">if</span> (<span class="keyword">this</span>.autoPlay) {
<span class="keyword">this</span>.pauseOnBufferFull = <span class="literal">false</span>;
} <span class="keyword">else</span> <span class="keyword">if</span> (!<span class="keyword">this</span>.autoPlay) {
<span class="keyword">this</span>.pauseOnBufferFull = <span class="literal">true</span>;
}
}
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">setVolume</span><span class="params">(nVolume: Number)</span> <span class="type">: void</span> {</span>
<span class="keyword">this</span>.lastValues.volume = nVolume / <span class="number">100</span>;
<span class="keyword">this</span>.applyTransform();
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">setPan</span><span class="params">(nPan: Number)</span> <span class="type">: void</span> {</span>
<span class="keyword">this</span>.lastValues.pan = nPan / <span class="number">100</span>;
<span class="keyword">this</span>.applyTransform();
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">applyTransform</span><span class="params">()</span> <span class="type">: void</span> {</span>
<span class="keyword">var</span> st: SoundTransform = <span class="keyword">new</span> SoundTransform(<span class="keyword">this</span>.lastValues.volume, <span class="keyword">this</span>.lastValues.pan);
<span class="keyword">if</span> (<span class="keyword">this</span>.useNetstream) {
<span class="keyword">if</span> (<span class="keyword">this</span>.ns) {
<span class="keyword">this</span>.ns.soundTransform = st;
} <span class="keyword">else</span> {</pre></div></div>
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<p>writeDebug(&#39;applyTransform(): Note: No active netStream&#39;);</p>
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<div class="content"><div class='highlight'><pre> }
} <span class="keyword">else</span> <span class="keyword">if</span> (<span class="keyword">this</span>.soundChannel) {
<span class="keyword">this</span>.soundChannel.soundTransform = st; <span class="comment">// new SoundTransform(this.lastValues.volume, this.lastValues.pan);</span>
}
}</pre></div></div>
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<p>Handle FMS bandwidth check callback.
@see <a href="http://www.adobe.com/devnet/flashmediaserver/articles/dynamic_stream_switching_04.html">http://www.adobe.com/devnet/flashmediaserver/articles/dynamic_stream_switching_04.html</a>
@see <a href="http://www.johncblandii.com/index.php/2007/12/fms-a-quick-fix-for-missing-onbwdone-onfcsubscribe-etc.html">http://www.johncblandii.com/index.php/2007/12/fms-a-quick-fix-for-missing-onbwdone-onfcsubscribe-etc.html</a></p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">onBWDone</span><span class="params">()</span> <span class="type">: void</span> {</span></pre></div></div>
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<p>writeDebug(&#39;onBWDone: called and ignored&#39;);</p>
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<div class="content"><div class='highlight'><pre> }</pre></div></div>
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<p>NetStream client callback. Invoked when the song is complete.</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">onPlayStatus</span><span class="params">(info:Object)</span><span class="type">:void</span> {</span>
writeDebug(<span class="string">'onPlayStatus called with '</span>+info);
<span class="keyword">switch</span>(info.code) {
<span class="keyword">case</span> <span class="string">"NetStream.Play.Complete"</span>:
writeDebug(<span class="string">'Song has finished!'</span>);
<span class="keyword">break</span>;
}
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">doIOError</span><span class="params">(e: IOErrorEvent)</span> <span class="type">: void</span> {</span>
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onload"</span>, <span class="number">0</span>); <span class="comment">// call onload, assume it failed.</span></pre></div></div>
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<p>there was a connection drop, a loss of internet connection, or something else wrong. 404 error too.</p>
</div>
<div class="content"><div class='highlight'><pre> }
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">doAsyncError</span><span class="params">(e: AsyncErrorEvent)</span> <span class="type">: void</span> {</span>
writeDebug(<span class="string">'asyncError: '</span> + e.text);
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">doNetStatus</span><span class="params">(e: NetStatusEvent)</span> <span class="type">: void</span> {</span></pre></div></div>
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<p>Handle failures</p>
</div>
<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (e.info.code == <span class="string">"NetStream.Failed"</span>
|| e.info.code == <span class="string">"NetStream.Play.FileStructureInvalid"</span>
|| e.info.code == <span class="string">"NetStream.Play.StreamNotFound"</span>) {
<span class="keyword">this</span>.lastNetStatus = e.info.code;
writeDebug(<span class="string">'netStatusEvent: '</span> + e.info.code);
<span class="keyword">this</span>.failed = <span class="literal">true</span>;
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onfailure"</span>, <span class="string">''</span>, e.info.level, e.info.code);
<span class="keyword">return</span>;
}
writeDebug(<span class="string">'netStatusEvent: '</span> + e.info.code); <span class="comment">// KJV we like to see all events</span></pre></div></div>
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<p>When streaming, Stop is called when buffering stops, not when the stream is actually finished.
@see <a href="http://www.actionscript.org/forums/archive/index.php3/t-159194.html">http://www.actionscript.org/forums/archive/index.php3/t-159194.html</a></p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (e.info.code == <span class="string">"NetStream.Play.Stop"</span>) {
<span class="keyword">if</span> (!<span class="keyword">this</span>.finished &amp;&amp; (!<span class="keyword">this</span>.useNetstream || !<span class="keyword">this</span>.serverUrl)) {</pre></div></div>
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<p>finished playing, and not RTMP</p>
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<div class="content"><div class='highlight'><pre> writeDebug(<span class="string">'calling onfinish for a sound'</span>);</pre></div></div>
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<p>reset the sound? Move back to position 0?</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.sm.checkProgress();
<span class="keyword">this</span>.finished = <span class="literal">true</span>; <span class="comment">// will be reset via JS callback</span>
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onfinish"</span>);
}
} <span class="keyword">else</span> <span class="keyword">if</span> (e.info.code == <span class="string">"NetStream.Play.Start"</span> || e.info.code == <span class="string">"NetStream.Buffer.Empty"</span> || e.info.code == <span class="string">"NetStream.Buffer.Full"</span>) {</pre></div></div>
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<p>RTMP case..
We wait for the buffer to fill up before pausing the just-loaded song because only if the
buffer is full will the song continue to buffer until the user hits play.</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (<span class="keyword">this</span>.serverUrl &amp;&amp; e.info.code == <span class="string">"NetStream.Buffer.Full"</span> &amp;&amp; <span class="keyword">this</span>.pauseOnBufferFull) {
<span class="keyword">this</span>.ns.pause();
<span class="keyword">this</span>.paused = <span class="literal">true</span>;
<span class="keyword">this</span>.pauseOnBufferFull = <span class="literal">false</span>;</pre></div></div>
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<p>Call pause in JS. This will call back to us to pause again, but
that should be harmless.</p>
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<div class="content"><div class='highlight'><pre> writeDebug(<span class="string">'Pausing on buffer full'</span>);
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"'].pause"</span>, <span class="literal">false</span>);
}
<span class="keyword">var</span> isNetstreamBuffering: Boolean = (e.info.code == <span class="string">"NetStream.Buffer.Empty"</span> || e.info.code == <span class="string">"NetStream.Play.Start"</span>);</pre></div></div>
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<p>assume buffering when we start playing, eg. initial load.</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (isNetstreamBuffering != <span class="keyword">this</span>.lastValues.isBuffering) {
<span class="keyword">this</span>.lastValues.isBuffering = isNetstreamBuffering;
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onbufferchange"</span>, <span class="keyword">this</span>.lastValues.isBuffering ? <span class="number">1</span> : <span class="number">0</span>);
}</pre></div></div>
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<p>We can detect the end of the stream when Play.Stop is called followed by Buffer.Empty.
However, if you pause and let the whole song buffer, Buffer.Flush is called followed by
Buffer.Empty, so handle that case too.</p>
<p>Ignore this event if we are more than 3 seconds from the end of the song.</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">if</span> (e.info.code == <span class="string">"NetStream.Buffer.Empty"</span> &amp;&amp; (<span class="keyword">this</span>.lastNetStatus == <span class="string">'NetStream.Play.Stop'</span> || <span class="keyword">this</span>.lastNetStatus == <span class="string">'NetStream.Buffer.Flush'</span>)) {
<span class="keyword">if</span> (<span class="keyword">this</span>.duration &amp;&amp; (<span class="keyword">this</span>.ns.time * <span class="number">1000</span>) &lt; (<span class="keyword">this</span>.duration - <span class="number">3000</span>)) {
writeDebug(<span class="string">'Ignoring Buffer.Empty because this is too early to be the end of the stream! (sID: '</span>+<span class="keyword">this</span>.sID+<span class="string">', time: '</span>+(<span class="keyword">this</span>.ns.time*<span class="number">1000</span>)+<span class="string">', duration: '</span>+<span class="keyword">this</span>.duration+<span class="string">')'</span>);
} <span class="keyword">else</span> <span class="keyword">if</span> (!<span class="keyword">this</span>.finished) {
<span class="keyword">this</span>.finished = <span class="literal">true</span>;
writeDebug(<span class="string">'calling onfinish for sound '</span>+<span class="keyword">this</span>.sID);
<span class="keyword">this</span>.sm.checkProgress();
ExternalInterface.call(baseJSObject + <span class="string">"['"</span> + <span class="keyword">this</span>.sID + <span class="string">"']._onfinish"</span>);
}
} <span class="keyword">else</span> <span class="keyword">if</span> (e.info.code == <span class="string">"NetStream.Buffer.Empty"</span>) {</pre></div></div>
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<p>The buffer is empty. Start from the smallest buffer again.</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.ns.bufferTime = <span class="keyword">this</span>.bufferTime;
}
}</pre></div></div>
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<p>Remember the last NetStatus event</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">this</span>.lastNetStatus = e.info.code;
}</pre></div></div>
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<p>KJV The sound adds some of its own netstatus handlers so we don&#39;t need to do it here.</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">addNetstreamEvents</span><span class="params">()</span> <span class="type">: void</span> {</span>
ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR, doAsyncError);
ns.addEventListener(NetStatusEvent.NET_STATUS, doNetStatus);
ns.addEventListener(IOErrorEvent.IO_ERROR, doIOError);
}
<span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">removeNetstreamEvents</span><span class="params">()</span> <span class="type">: void</span> {</span>
ns.removeEventListener(AsyncErrorEvent.ASYNC_ERROR, doAsyncError);
ns.removeEventListener(NetStatusEvent.NET_STATUS, doNetStatus);
ns.addEventListener(NetStatusEvent.NET_STATUS, dummyNetStatusHandler);
ns.removeEventListener(IOErrorEvent.IO_ERROR, doIOError);</pre></div></div>
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<p>KJV Stop listening for NetConnection events on the sound</p>
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<div class="content"><div class='highlight'><pre> nc.removeEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
}</pre></div></div>
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<p>Prevents possible &#39;Unhandled NetStatusEvent&#39; condition if a sound is being
destroyed and interacted with at the same time.</p>
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<div class="content"><div class='highlight'><pre> <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">dummyNetStatusHandler</span><span class="params">(e: NetStatusEvent)</span> <span class="type">: void</span> {</span></pre></div></div>
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<p>Don&#39;t do anything</p>
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<div class="content"><div class='highlight'><pre> }
}
}</pre></div></div>
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