28e7b63568
- Intro Screen - Share buttons (Twitter/Facebook) - SoundManager - Add audio files - Some CleanUp
598 lines
26 KiB
ActionScript
598 lines
26 KiB
ActionScript
/*
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SoundManager 2: Javascript Sound for the Web
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----------------------------------------------
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http://schillmania.com/projects/soundmanager2/
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Copyright (c) 2007, Scott Schiller. All rights reserved.
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Code licensed under the BSD License:
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http://www.schillmania.com/projects/soundmanager2/license.txt
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Flash 9 / ActionScript 3 version
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*/
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package {
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import flash.external.*;
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import flash.events.*;
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import flash.media.Sound;
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import flash.media.SoundChannel;
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import flash.media.SoundLoaderContext;
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import flash.media.SoundTransform;
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import flash.media.SoundMixer;
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import flash.net.URLRequest;
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import flash.utils.ByteArray;
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import flash.utils.getTimer;
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import flash.net.NetConnection;
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import flash.net.NetStream;
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public class SoundManager2_SMSound_AS3 extends Sound {
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public var sm: SoundManager2_AS3 = null;
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// externalInterface references (for Javascript callbacks)
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public var baseJSController: String = "soundManager";
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public var baseJSObject: String = baseJSController + ".sounds";
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public var soundChannel: SoundChannel = new SoundChannel();
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public var urlRequest: URLRequest;
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public var soundLoaderContext: SoundLoaderContext;
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public var waveformData: ByteArray = new ByteArray();
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public var waveformDataArray: Array = [];
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public var eqData: ByteArray = new ByteArray();
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public var eqDataArray: Array = [];
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public var usePeakData: Boolean = false;
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public var useWaveformData: Boolean = false;
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public var useEQData: Boolean = false;
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public var sID: String;
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public var sURL: String;
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public var justBeforeFinishOffset: int;
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public var didJustBeforeFinish: Boolean;
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public var didFinish: Boolean;
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public var loaded: Boolean;
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public var connected: Boolean;
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public var failed: Boolean;
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public var paused: Boolean;
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public var finished: Boolean;
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public var duration: Number;
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public var handledDataError: Boolean = false;
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public var ignoreDataError: Boolean = false;
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public var autoPlay: Boolean = false;
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public var autoLoad: Boolean = false;
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public var pauseOnBufferFull: Boolean = true;
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public var loops: Number = 1;
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public var lastValues: Object = {
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bytes: 0,
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position: 0,
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volume: 100,
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pan: 0,
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loops: 1,
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leftPeak: 0,
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rightPeak: 0,
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waveformDataArray: null,
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eqDataArray: null,
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isBuffering: null,
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bufferLength: 0
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};
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public var didLoad: Boolean = false;
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public var useEvents: Boolean = false;
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public var sound: Sound = new Sound();
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public var cc: Object;
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public var nc: NetConnection;
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public var ns: NetStream = null;
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public var st: SoundTransform;
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public var useNetstream: Boolean;
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public var bufferTime: Number = 3; // previously 0.1
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public var bufferTimes: Array; // an array of integers (for specifying multiple buffers)
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public var lastNetStatus: String = null;
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public var serverUrl: String = null;
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public var start_time: Number;
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public var connect_time: Number;
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public var play_time: Number;
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public var recordStats: Boolean = false;
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public var checkPolicyFile:Boolean = false;
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public function SoundManager2_SMSound_AS3(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, bufferTimes: Array = null, recordStats: Boolean = false, autoLoad: Boolean = false, checkPolicyFile: Boolean = false) {
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this.sm = oSoundManager;
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this.sID = sIDArg;
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this.sURL = sURLArg;
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this.usePeakData = usePeakData;
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this.useWaveformData = useWaveformData;
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this.useEQData = useEQData;
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this.urlRequest = new URLRequest(sURLArg);
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this.justBeforeFinishOffset = 0;
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this.didJustBeforeFinish = false;
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this.didFinish = false; // non-MP3 formats only
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this.loaded = false;
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this.connected = false;
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this.failed = false;
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this.finished = false;
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this.soundChannel = null;
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this.lastNetStatus = null;
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this.useNetstream = useNetstreamArg;
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this.serverUrl = serverUrl;
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this.duration = duration;
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this.recordStats = recordStats;
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this.useEvents = useEvents;
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this.autoLoad = autoLoad;
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if (netStreamBufferTime) {
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this.bufferTime = netStreamBufferTime;
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}
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// Use bufferTimes instead of bufferTime
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if (bufferTimes !== null) {
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this.bufferTimes = bufferTimes;
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} else {
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this.bufferTimes = [this.bufferTime];
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}
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setAutoPlay(autoPlay);
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if (recordStats) {
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this.start_time = getTimer();
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}
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this.checkPolicyFile = checkPolicyFile;
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writeDebug('SoundManager2_SMSound_AS3: Got duration: '+duration+', autoPlay: '+autoPlay);
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if (this.useNetstream) {
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this.cc = new Object();
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this.nc = new NetConnection();
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// Handle FMS bandwidth check callback.
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// @see onBWDone
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// @see http://www.adobe.com/devnet/flashmediaserver/articles/dynamic_stream_switching_04.html
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// @see http://www.johncblandii.com/index.php/2007/12/fms-a-quick-fix-for-missing-onbwdone-onfcsubscribe-etc.html
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this.nc.client = this;
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// TODO: security/IO error handling
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// this.nc.addEventListener(SecurityErrorEvent.SECURITY_ERROR, doSecurityError);
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nc.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
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if (this.serverUrl != null) {
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writeDebug('SoundManager2_SMSound_AS3: NetConnection: connecting to server ' + this.serverUrl + '...');
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}
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this.nc.connect(serverUrl);
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} else {
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this.connect_time = this.start_time;
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this.connected = true;
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}
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}
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public function netStatusHandler(event:NetStatusEvent):void {
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if (this.useEvents) {
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writeDebug('netStatusHandler: '+event.info.code);
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}
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switch (event.info.code) {
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case "NetConnection.Connect.Success":
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writeDebug('NetConnection: connected');
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try {
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this.ns = new NetStream(this.nc);
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this.ns.checkPolicyFile = this.checkPolicyFile;
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// bufferTime reference: http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/net/NetStream.html#bufferTime
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this.ns.bufferTime = getStartBuffer(); // set to 0.1 or higher. 0 is reported to cause playback issues with static files.
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this.st = new SoundTransform();
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this.cc.onMetaData = this.metaDataHandler;
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this.ns.client = this.cc;
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this.ns.receiveAudio(true);
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this.addNetstreamEvents();
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this.connected = true;
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if (recordStats) {
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this.recordConnectTime();
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}
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if (this.useEvents) {
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writeDebug('firing _onconnect for '+this.sID);
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ExternalInterface.call(this.sm.baseJSObject + "['" + this.sID + "']._onconnect", 1);
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}
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} catch(e: Error) {
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this.failed = true;
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writeDebug('netStream error: ' + e.toString());
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfailure", 'Connection failed!', event.info.level, event.info.code);
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}
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break;
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case "NetStream.Play.StreamNotFound":
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this.failed = true;
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writeDebug("NetConnection: Stream not found!");
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfailure", 'Stream not found!', event.info.level, event.info.code);
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break;
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// This is triggered when the sound loses the connection with the server.
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// In some cases one could just try to reconnect to the server and resume playback.
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// However for streams protected by expiring tokens, I don't think that will work.
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//
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// Flash says that this is not an error code, but a status code...
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// should this call the onFailure handler?
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case "NetConnection.Connect.Closed":
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this.failed = true;
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfailure", 'Connection closed!', event.info.level, event.info.code);
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writeDebug("NetConnection: Connection closed!");
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break;
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// Couldn't establish a connection with the server. Attempts to connect to the server
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// can also fail if the permissible number of socket connections on either the client
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// or the server computer is at its limit. This also happens when the internet
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// connection is lost.
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case "NetConnection.Connect.Failed":
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this.failed = true;
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writeDebug("NetConnection: Connection failed! Lost internet connection? Try again... Description: " + event.info.description);
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfailure", 'Connection failed!', event.info.level, event.info.code);
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break;
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// A change has occurred to the network status. This could mean that the network
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// connection is back, or it could mean that it has been lost...just try to resume
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// playback.
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// KJV: Can't use this yet because by the time you get your connection back the
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// song has reached it's maximum retries, so it doesn't retry again. We need
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// a new _ondisconnect handler.
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//case "NetConnection.Connect.NetworkChange":
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// this.failed = true;
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// writeDebug("NetConnection: Network connection status changed");
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// ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfailure", 'Reconnecting...');
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// break;
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// Consider everything else a failure...
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default:
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this.failed = true;
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writeDebug("NetConnection: got unhandled code '" + event.info.code + "'! Description: " + event.info.description);
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfailure", '', event.info.level, event.info.code);
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break;
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}
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}
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// Set the buffer size on the current NetSream instance to <tt>buffer</tt> secs
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// Only set the buffer if it's different to the current buffer.
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public function setBuffer(buffer: int) : void {
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if (buffer != this.ns.bufferTime) {
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this.ns.bufferTime = buffer;
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writeDebug('set buffer to '+this.ns.bufferTime+' secs');
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}
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}
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// Return the size of the starting buffer.
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public function getStartBuffer() : int {
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return this.bufferTimes[0];
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}
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// Return the size of the next buffer, given the size of the current buffer.
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// If there are no more buffers, returns the current buffer size.
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public function getNextBuffer(current_buffer: int) : int {
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var i: int = bufferTimes.indexOf(current_buffer);
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if (i == -1) {
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// Couldn't find the buffer, start from the start buffer size
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return getStartBuffer();
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} else if (i + 1 >= bufferTimes.length) {
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// Last (or only) buffer, keep the current buffer
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return current_buffer;
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} else {
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return this.bufferTimes[i+1];
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}
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}
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public function writeDebug (s: String, bTimestamp: Boolean = false) : Boolean {
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return this.sm.writeDebug (s, bTimestamp); // defined in main SM object
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}
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public function metaDataHandler(infoObject: Object) : void {
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if (sm.debugEnabled) {
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var data:String = new String();
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for (var prop:* in infoObject) {
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data += prop+': '+infoObject[prop]+' \n';
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}
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writeDebug('Metadata: '+data);
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}
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this.duration = infoObject.duration * 1000;
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if (!this.loaded) {
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// writeDebug('not loaded yet: '+this.ns.bytesLoaded+', '+this.ns.bytesTotal+', '+infoObject.duration*1000);
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// TODO: investigate loaded/total values
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// ExternalInterface.call(baseJSObject + "['" + this.sID + "']._whileloading", this.ns.bytesLoaded, this.ns.bytesTotal, infoObject.duration*1000);
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._whileloading", this.bytesLoaded, this.bytesTotal, (infoObject.duration || this.duration))
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}
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// null this out for the duration of this object's existence.
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// it may be called multiple times.
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this.cc.onMetaData = function(infoObject: Object) : void {}
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}
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public function getWaveformData() : void {
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// http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/SoundMixer.html#computeSpectrum()
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SoundMixer.computeSpectrum(this.waveformData, false, 0); // sample wave data at 44.1 KHz
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this.waveformDataArray = [];
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for (var i: int = 0, j: int = this.waveformData.length / 4; i < j; i++) { // get all 512 values (256 per channel)
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this.waveformDataArray.push(int(this.waveformData.readFloat() * 1000) / 1000);
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}
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}
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public function getEQData() : void {
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// http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/SoundMixer.html#computeSpectrum()
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SoundMixer.computeSpectrum(this.eqData, true, 0); // sample EQ data at 44.1 KHz
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this.eqDataArray = [];
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for (var i: int = 0, j: int = this.eqData.length / 4; i < j; i++) { // get all 512 values (256 per channel)
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this.eqDataArray.push(int(this.eqData.readFloat() * 1000) / 1000);
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}
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}
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public function start(nMsecOffset: int, nLoops: int) : void {
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this.useEvents = true;
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if (this.useNetstream) {
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writeDebug("SMSound::start nMsecOffset "+ nMsecOffset+ ' nLoops '+nLoops + ' current bufferTime '+this.ns.bufferTime+' current bufferLength '+this.ns.bufferLength+ ' this.lastValues.position '+this.lastValues.position);
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this.cc.onMetaData = this.metaDataHandler;
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// Don't seek if we don't have to because it destroys the buffer
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var set_position:Boolean = this.lastValues.position != null && this.lastValues.position != nMsecOffset;
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if (set_position) {
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// Minimize the buffer so playback starts ASAP
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this.setBuffer(this.getStartBuffer());
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}
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if (this.paused) {
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writeDebug('start: resuming from paused state');
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this.ns.resume(); // get the sound going again
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if (!this.didLoad) {
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this.didLoad = true;
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}
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this.paused = false;
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} else if (!this.didLoad) {
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writeDebug('start: !didLoad - playing '+this.sURL);
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this.ns.play(this.sURL);
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this.pauseOnBufferFull = false; // SAS: playing behaviour overrides buffering behaviour
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this.didLoad = true;
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this.paused = false;
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} else {
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// previously loaded, perhaps stopped/finished. play again?
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writeDebug('playing again (not paused, didLoad = true)');
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this.ns.play(this.sURL);
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}
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// KJV seek after calling play otherwise some streams get a NetStream.Seek.Failed
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// Should only apply to the !didLoad case, but do it for all for simplicity.
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// nMsecOffset is in milliseconds for streams but in seconds for progressive
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// download.
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if (set_position) {
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this.ns.seek(this.serverUrl ? nMsecOffset / 1000 : nMsecOffset);
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this.lastValues.position = nMsecOffset; // https://gist.github.com/1de8a3113cf33d0cff67
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}
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// this.ns.addEventListener(Event.SOUND_COMPLETE, _onfinish);
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this.applyTransform();
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} else {
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// writeDebug('start: seeking to '+nMsecOffset+', '+nLoops+(nLoops==1?' loop':' loops'));
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this.soundChannel = this.play(nMsecOffset, nLoops);
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this.addEventListener(Event.SOUND_COMPLETE, _onfinish);
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this.applyTransform();
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}
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}
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private function _onfinish() : void {
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this.removeEventListener(Event.SOUND_COMPLETE, _onfinish);
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}
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public function loadSound(sURL: String, bStream: Boolean) : void {
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if (this.useNetstream) {
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this.useEvents = true;
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if (this.didLoad != true) {
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ExternalInterface.call('loadSound(): loading ' + this.sURL);
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this.ns.play(this.sURL);
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this.didLoad = true;
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}
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// this.addEventListener(Event.SOUND_COMPLETE, _onfinish);
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this.applyTransform();
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} else {
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try {
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this.didLoad = true;
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this.urlRequest = new URLRequest(sURL);
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this.soundLoaderContext = new SoundLoaderContext(1000, this.checkPolicyFile); // check for policy (crossdomain.xml) file on remote domains - http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/SoundLoaderContext.html
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this.load(this.urlRequest, this.soundLoaderContext);
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} catch(e: Error) {
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writeDebug('error during loadSound(): ' + e.toString());
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}
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}
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}
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public function setAutoPlay(autoPlay: Boolean) : void {
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if (!this.serverUrl) {
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// don't apply to non-RTMP, netstream stuff.
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this.autoPlay = true;
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this.pauseOnBufferFull = false;
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} else {
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this.autoPlay = autoPlay;
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if (this.autoPlay) {
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this.pauseOnBufferFull = false;
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// writeDebug('ignoring pauseOnBufferFull because autoPlay is on');
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} else if (!this.autoPlay) {
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this.pauseOnBufferFull = true;
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// writeDebug('pausing on buffer full because autoPlay is off');
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}
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}
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}
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public function setVolume(nVolume: Number) : void {
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this.lastValues.volume = nVolume / 100;
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this.applyTransform();
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}
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public function setPan(nPan: Number) : void {
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this.lastValues.pan = nPan / 100;
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this.applyTransform();
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}
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public function applyTransform() : void {
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var st: SoundTransform = new SoundTransform(this.lastValues.volume, this.lastValues.pan);
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if (this.useNetstream) {
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if (this.ns) {
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this.ns.soundTransform = st;
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} else {
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// writeDebug('applyTransform(): Note: No active netStream');
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}
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} else if (this.soundChannel) {
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this.soundChannel.soundTransform = st; // new SoundTransform(this.lastValues.volume, this.lastValues.pan);
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}
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}
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public function recordPlayTime() : void {
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this.play_time = Math.round(getTimer() - (this.start_time + this.connect_time));
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writeDebug('Play took '+ this.play_time + ' ms');
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// We must now have both stats, call the onstats callback
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onstats", {
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play_time: this.play_time,
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connect_time: this.connect_time
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});
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// Stop tracking any stats for this object
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this.recordStats = false;
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}
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public function recordConnectTime() : void {
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this.connect_time = Math.round(getTimer() - this.start_time);
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writeDebug('Connect took '+ this.connect_time + ' ms');
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}
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// Handle FMS bandwidth check callback.
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// @see http://www.adobe.com/devnet/flashmediaserver/articles/dynamic_stream_switching_04.html
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// @see http://www.johncblandii.com/index.php/2007/12/fms-a-quick-fix-for-missing-onbwdone-onfcsubscribe-etc.html
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public function onBWDone() : void {
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// writeDebug('onBWDone: called and ignored');
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}
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// NetStream client callback. Invoked when the song is complete.
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public function onPlayStatus(info:Object):void {
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writeDebug('onPlayStatus called with '+info);
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switch(info.code) {
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case "NetStream.Play.Complete":
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writeDebug('Song has finished!');
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break;
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}
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}
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public function doIOError(e: IOErrorEvent) : void {
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onload", 0); // call onload, assume it failed.
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// there was a connection drop, a loss of internet connection, or something else wrong. 404 error too.
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}
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public function doAsyncError(e: AsyncErrorEvent) : void {
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writeDebug('asyncError: ' + e.text);
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}
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public function doNetStatus(e: NetStatusEvent) : void {
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// Handle failures
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if (e.info.code == "NetStream.Failed"
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|| e.info.code == "NetStream.Play.FileStructureInvalid"
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|| e.info.code == "NetStream.Play.StreamNotFound") {
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this.lastNetStatus = e.info.code;
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writeDebug('netStatusEvent: ' + e.info.code);
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this.failed = true;
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfailure", '', e.info.level, e.info.code);
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return;
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}
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writeDebug('netStatusEvent: ' + e.info.code); // KJV we like to see all events
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// When streaming, Stop is called when buffering stops, not when the stream is actually finished.
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// @see http://www.actionscript.org/forums/archive/index.php3/t-159194.html
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if (e.info.code == "NetStream.Play.Stop") {
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if (!this.useNetstream) {
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// finished playing
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// this.didFinish = true; // will be reset via JS callback
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this.didJustBeforeFinish = false; // reset
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writeDebug('calling onfinish for a sound');
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// reset the sound? Move back to position 0?
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this.sm.checkProgress();
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfinish");
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}
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} else if (e.info.code == "NetStream.Play.Start" || e.info.code == "NetStream.Buffer.Empty" || e.info.code == "NetStream.Buffer.Full") {
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// First time buffer has filled. Print debugging output.
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if (this.recordStats && !this.play_time) {
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this.recordPlayTime();
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}
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// RTMP case..
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// We wait for the buffer to fill up before pausing the just-loaded song because only if the
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// buffer is full will the song continue to buffer until the user hits play.
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if (this.serverUrl && e.info.code == "NetStream.Buffer.Full" && this.pauseOnBufferFull) {
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this.ns.pause();
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this.paused = true;
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this.pauseOnBufferFull = false;
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// Call pause in JS. This will call back to us to pause again, but
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// that should be harmless.
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writeDebug('Pausing song because buffer is full');
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ExternalInterface.call(baseJSObject + "['" + this.sID + "'].pause", false);
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}
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// The buffer is full. Increase its size if possible.
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// Double buffering has not been shown to cause false starts, so this is safe.
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if (e.info.code == "NetStream.Buffer.Full") {
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var next_buffer: int = this.getNextBuffer(this.ns.bufferTime);
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if (next_buffer != this.ns.bufferTime) {
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this.setBuffer(next_buffer);
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}
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}
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var isNetstreamBuffering: Boolean = (e.info.code == "NetStream.Buffer.Empty" || e.info.code == "NetStream.Play.Start");
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// assume buffering when we start playing, eg. initial load.
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if (isNetstreamBuffering != this.lastValues.isBuffering) {
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this.lastValues.isBuffering = isNetstreamBuffering;
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onbufferchange", this.lastValues.isBuffering ? 1 : 0);
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}
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// We can detect the end of the stream when Play.Stop is called followed by Buffer.Empty.
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// However, if you pause and let the whole song buffer, Buffer.Flush is called followed by
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// Buffer.Empty, so handle that case too.
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//
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// Ignore this event if we are more than 5 seconds from the end of the song.
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if (e.info.code == "NetStream.Buffer.Empty" && (this.lastNetStatus == 'NetStream.Play.Stop' || this.lastNetStatus == 'NetStream.Buffer.Flush')) {
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if (this.duration && (this.ns.time * 1000) < (this.duration - 5000)) {
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writeDebug('Ignoring Buffer.Empty because this is too early to be the end of the stream! (sID: '+this.sID+', time: '+(this.ns.time*1000)+', duration: '+this.duration+')');
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} else {
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this.didJustBeforeFinish = false; // reset
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this.finished = true;
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writeDebug('calling onfinish for sound '+this.sID);
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this.sm.checkProgress();
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ExternalInterface.call(baseJSObject + "['" + this.sID + "']._onfinish");
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}
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} else if (e.info.code == "NetStream.Buffer.Empty") {
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// The buffer is empty. Start from the smallest buffer again.
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this.setBuffer(this.getStartBuffer());
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}
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}
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// Remember the last NetStatus event
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this.lastNetStatus = e.info.code;
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}
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// KJV The sound adds some of its own netstatus handlers so we don't need to do it here.
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public function addNetstreamEvents() : void {
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ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR, doAsyncError);
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ns.addEventListener(NetStatusEvent.NET_STATUS, doNetStatus);
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ns.addEventListener(IOErrorEvent.IO_ERROR, doIOError);
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}
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public function removeNetstreamEvents() : void {
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ns.removeEventListener(AsyncErrorEvent.ASYNC_ERROR, doAsyncError);
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ns.removeEventListener(NetStatusEvent.NET_STATUS, doNetStatus);
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ns.addEventListener(NetStatusEvent.NET_STATUS, dummyNetStatusHandler);
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ns.removeEventListener(IOErrorEvent.IO_ERROR, doIOError);
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// KJV Stop listening for NetConnection events on the sound
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nc.removeEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
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}
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// Prevents possible 'Unhandled NetStatusEvent' condition if a sound is being
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// destroyed and interacted with at the same time.
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public function dummyNetStatusHandler(e: NetStatusEvent) : void {
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// Don't do anything
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}
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}
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} |