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Version 0.6.178, fix X.KB for IE5-, X.HTMLAudio for ChromeWV & AOSP.
[pettanr/clientJs.git] / 0.6.x / js / 07_audio / 02_XHTMLAudio.js
index 341e8d4..154e4ac 100644 (file)
 /*\r
  * original : uupaa-js HTML5Audio.js\r
  * https://code.google.com/p/uupaa-js/source/browse/trunk/0.8/src/Audio/HTML5Audio.js?r=568\r
+ * \r
+ * Windows 版 Safari は QuickTime のインストールが必要\r
+ * \r
+ * 1. iOS4(iPod 2G) で ended に達すると音が鳴らなくなる fix で解決\r
+ * 2. iOS6(iPod 4G) で ended に達すると音が鳴らなくなる fix で頻度が改善 emded イベントは発しないので、timeupdate 時に currentTime で判断する\r
+ * 3. WP7(IS12T) で最後の方にある音が鳴らない? mp3 cbr を使えばいい? 裏に回っても音が鳴り続ける\r
+ * 4. AOSP 2.x で ended に達すると音が鳴らなくなる -> リロード(audio.src='';audio.src=src;audio.load())でで解決\r
+ * 5. AOSP 3.x で ended に達すると音が鳴らなくなる -> リロード(audio.src='';audio.sr=src)で解決、但し 2.x 4.x より遅延が大きく 1 秒弱程度ある\r
+ * 6. AOSP 4.4.2- は ended に達した際に currentTime が変更できなくなり、リロードが必要になる, 4.0, 4.1, 4.2, 4.3 で確認, play() で頻度低下\r
+ * 7. Android 4.4.4 Chrome WebView は ended に達した際に play() が必要\r
+ * 8. BlinkOpera32 Win8 は HTMLAudio が壊れている、WebAudio は mp3 がデコードに失敗、ogg が動作\r
+ * \r
+ * memo\r
+ * 1. Android4.1 iframe 内の Audio は親に focus が移っても再生を継続する\r
  */\r
 \r
-var X_Audio_HTML5Audio, X_Audio_HTML5AudioWrapper, X_Audio_rawAudio,\r
-       X_Audio_HTML5Audio_LIVE_LIST = [],\r
-       X_Audio_HTML5Audio_POOL_LIST = [];\r
+var X_HTMLAudio_playTrigger =\r
+               6 <= X_UA[ 'iOS' ] ? 'loadeddata' :\r
+               X_UA[ 'iOS' ] < 5  ? 'stalled' :\r
+               X_UA[ 'iOS' ]      ? 'suspend' :\r
+               X_UA[ 'Safari' ] < 4 ? 'canplaythrough' :\r
+               X_UA[ 'ChromeWV' ]   ? 'canplaythrough' :\r
+               // Android 2.3.5(SBM101SH) では stalled は発生しない,,, ので必ず loadeddata もチェックする\r
+               X_UA[ 'AOSP' ] ? 'stalled' :\r
+               X_UA[ 'OperaMobile' ] || X_UA[ 'OperaTablet' ] ? 'loadeddata' :\r
+                       'loadeddata', //'canplay',\r
+       X_HTMLAudio,\r
        \r
-\r
-if( window.HTMLAudioElement ){\r
-       function getHTML5AudioWrapper( proxy ){\r
-               var i = X_Audio_HTML5Audio_LIVE_LIST.length;\r
-               for( ; i; ){\r
-                       if( X_Audio_HTML5Audio_LIVE_LIST[ --i ].proxy === proxy ) return X_Audio_HTML5Audio_LIVE_LIST[ i ];\r
-               };\r
-       };\r
+       // ended が発生しない timeupdate 内で play() を呼ぶ (未検証) 不具合確認は iOS4,6\r
+       X_HTMLAudio_endedFixIOS     = X_UA[ 'iOS' ] < 7,\r
+       // Android 2.3.5 で ended 時に audio.src='';audio.src=src;audio.load() を実施。 2.3.4 でも問題なし。\r
+       X_HTMLAudio_endedFixAOSP2   = X_UA[ 'AOSP' ] < 3,\r
+       // Android 3.1 で ended 時に src='';src=src を実施。\r
+       X_HTMLAudio_endedFixAOSP3   = !X_HTMLAudio_endedFixAOSP2 && X_UA[ 'AOSP' ] < 4,\r
+       // ended 時に play() を実施, currentTime が duration に張り付き更新されなければ  src='';src=src を実施。\r
+       X_HTMLAudio_endedFixAOSP4   = 4 <= X_UA[ 'AOSP' ] || X_UA[ 'ChromeWV' ],\r
        \r
-       X_Audio_HTML5Audio = X_Class_override(\r
-               new X.EventDispatcher(),\r
-               {\r
-                       backendName : 'HTML5 Audio',\r
-               /*\r
-                * HTML5 の audio 要素と video 要素でサポートされているメディアフォーマット\r
-                * https://developer.mozilla.org/ja/docs/Web/HTML/Supported_media_formats\r
-                * \r
-                * 主要ブラウザのHTML5 audioタグで使えるファイル形式の再生対応状況を調べてみた\r
-                * http://sothis.blog.so-net.ne.jp/2010-10-27\r
-                * ダメ元で仕様に含まれていない SHOUTcast もテストしてみました。\r
-                * \r
-                * IE9 の HTML5 Audio について\r
-                * http://kentablog.cluscore.com/2011/05/ie9-html5-audio.html\r
-                * 1.Audioオブジェクトを作ることができないので、Audioタグを使う\r
-                * 2.クロスドメインアクセスには、「clientaccesspolicy.xml」か「crossdomain.xml」が必要\r
-                * 3.wav が不可\r
-                * \r
-                * IE9でHTML5 autio タグが無効になる\r
-                * http://bbs.wankuma.com/index.cgi?mode=al2&namber=64886&KLOG=109\r
-                *  IEのバージョン9.0.8112.16421では、Audioオブジェクトのnewも対応してました。\r
-                *  createElement等で動的生成すると、よろしくない\r
-                * \r
-                * media-can-play-wav-audio.html\r
-                * https://github.com/adobe/webkit/blob/master/LayoutTests/media/media-can-play-wav-audio.html\r
-                * testExpected("audio.canPlayType('audio/wav; codecs=1')", "probably");\r
-                * \r
-                * HTML5 audioタグ ブラウザ間の違い\r
-                * http://wiki.bit-hive.com/tomizoo/pg/HTML5%20audio%A5%BF%A5%B0%20%A5%D6%A5%E9%A5%A6%A5%B6%B4%D6%A4%CE%B0%E3%A4%A4\r
-                *  - volume, muted iPhone(iOS4-6)、Android(2.3.6)では動作せず。\r
-                *  - FireFox3.6, Android 2.3.6については、src変更後、load()を呼び出さないと切り替わらなかった。iPhoneはload()が不要。\r
-                */     \r
-                       detect : function( source, ext ){\r
-                               var ok, mineType = 'audio/' + ext;\r
-                               switch( ext ){\r
-                                       case 'mp3' :\r
-                                               ok = X_UA.IE || X_UA.Chrome || X_UA.Safari; //( X_UA.OS === 'windows' && X_UA.Safari );\r
-                                               mineType = 'audio/mpeg';\r
-                                               break;\r
-                                       case 'ogg' :\r
-                                               ok = 15 <= X_UA.Gecko || X_UA.Chrome || X_UA.Opera;\r
-                                               break;\r
-                                       case 'm4a' :\r
-                                               ok = X_UA.IE || X_UA.WebKit;\r
-                                               mineType = 'audio/mp4';\r
-                                               break;\r
-                                       case 'webm' :\r
-                                               ok = 2 <= X_UA.Gecko || 10.6 <= X_UA.Opera; // firefox4+(Gecko2+)\r
-                                               break;\r
-                                       case 'wav' :\r
-                                               ok = X_UA.Gecko || X_UA.Opera || X_UA.Safari; //( X_UA.OS === 'windows' && X_UA.Safari );\r
-                                               //mineType = 'audio/wav'; // audio/x-wav ?\r
-                                               break;\r
-                                       default :\r
-                                               mineType = '';\r
-                               };\r
-                               \r
-                               if( !ok && mineType ){\r
-                                       if( !X_Audio_rawAudio ) X_Audio_rawAudio = new Audio;\r
-                                       ok = X_Audio_rawAudio.canPlayType( mineType );\r
-                               };\r
-                               \r
-                               this.asyncDispatch( ok ? 'support' : 'nosupport' );\r
-                               \r
-                               return this;\r
-                       },\r
-                       \r
-                       register : function( proxy, source, option ){\r
-                               X_Audio_HTML5Audio_LIVE_LIST.push( new X_Audio_HTML5AudioWrapper( proxy, source, option ) );\r
-                       },\r
-                       \r
-                       close : function(){\r
-                               return getHTML5AudioWrapper( this ).close();\r
-                       },\r
-                       \r
-                       play : function( position ){\r
-                               return getHTML5AudioWrapper( this ).play( position );\r
-                       },\r
-                       \r
-                       pause : function(){\r
-                               return getHTML5AudioWrapper( this ).pause();\r
-                       },\r
-                       \r
-                       stop : function(){\r
-                               return getHTML5AudioWrapper( this ).stop();\r
-                       },\r
-                       \r
-                       loop : function( v ){\r
-                               return getHTML5AudioWrapper( this ).loop( v );\r
-                       },\r
-       \r
-                       state : function(){\r
-                               return getHTML5AudioWrapper( this ).state();\r
-                       },\r
-       \r
-                       volume : function( v ){\r
-                               return getHTML5AudioWrapper( this ).volume( v );\r
-                       },\r
+       // Opera Mobile 12 は 2回目以降の currentTime へのセットで currentTime が更新されなくなるため、タイマーを使用する\r
+       X_HTMLAudio_currentTimeFix  = !!X_UA[ 'OperaMobile' ] || !!X_UA[ 'OperaTablet' ],\r
+\r
+       X_HTMLAudio_volumeFix       = X_UA[ 'Chrome' ],\r
+       /*\r
+        * win opera12 volume, mute の変更が2度目以降できない\r
+        */\r
+       X_HTMLAudio_volumeEnabled   = !( X_UA[ 'WinPhone' ] && X_UA[ 'IE9' ] ) && !X_UA[ 'Opera' ],\r
+       // Gecko PC + Android でseek時に再生がしばしば止まる問題の修正\r
+       X_HTMLAudio_needPlayForSeek = X_UA[ 'Gecko' ],\r
+       // \r
+       X_HTMLAudio_pauseFix            = ( X_UA[ 'Windows' ] && 12 <= X_UA[ 'Opera' ] && 0 < ' XP XPSP2 2003|XP64'.indexOf( X_UA[ 'Windows' ] ) ), // XP + Opera12 のみ?\r
+       /*\r
+        * durationFix\r
+        *  duration が取得できるタイミングが遅くそれまでは infinity(PC Opera12), NaN(WP9), 0(Android 標準ブラウザ ChromeWebView) が入っている\r
+        * \r
+        *   1. touch が不要の場合、自動で再生を開始して duration を取得するまで再生する\r
+        *        -> 取得後に pause or 通常再生\r
+        *   2. touch が必要な場合、タッチイベント内の audio.play() で duration 取得\r
+        * \r
+        *  PC Opera12\r
+        *   1. loadeddata 等では duration が infinity で、再生後の durationchange 時に duration が判明する\r
+        *   2. duration 判明後には currentTime によるシークと、現在時間の取得が可能になる。\r
+        *   3. Opera12.17 Win32(XP) portable apps は勝手に再生が始まる、、、Win8+Opera では発生しない\r
+        *        -> その際には timeupdate が発行されない、、、 iframe+image+audio で使わないときは破棄する、とか。\r
+        *        -> opera11、10.54 WinXP はまとも、、、 portable が怪しい??\r
+        */\r
+       X_HTMLAudio_need1stTouch        = X_UA[ 'iOS' ] || X_UA[ 'ChromeWV' ] || ( X_UA[ 'WinPhone' ] && X_UA[ 'IE9' ] ),       \r
+       X_HTMLAudio_durationFix     = ( X_UA[ 'Windows' ] && 12 <= X_UA[ 'Opera' ] ) || X_UA[ 'ChromeWV' ] || ( X_UA[ 'WinPhone' ] && X_UA[ 'IE9' ] ),\r
        \r
-                       startTime : function( time ){\r
-                               return getHTML5AudioWrapper( this ).startTime( time );\r
-                       },\r
+       X_HTMLAudio_shortPlayFix        = X_UA[ 'AOSP' ]; // Android 4.1.1 でも遭遇(ただしm4a, mp3は優秀, oggはシークが乱れる)\r
        \r
-                       currentTime : function( time ){\r
-                               return getHTML5AudioWrapper( this ).currentTime( time );\r
-                       },\r
        \r
-                       isPlaying : function(){\r
-                               return getHTML5AudioWrapper( this ).isPlaying();\r
-                       }\r
-               }\r
-       );\r
-       \r
-       X_Audio_BACKENDS.push( X_Audio_HTML5Audio );\r
+\r
+if( X_Audio_constructor ){\r
        \r
-       X_Audio_HTML5AudioWrapper = X.EventDispatcher.inherits(\r
-               'X.AV.HTML5AudioWrapper',\r
-               X.Class.POOL_OBJECT,\r
+       X_HTMLAudio = X_AudioBase[ 'inherits' ](\r
+               'X.HTMLAudio',\r
+               X_Class.POOL_OBJECT,\r
                {\r
+                       _closed               : true,\r
+                       _loaded               : false,\r
+                       _ready            : false,              \r
+                       _src                      : '',\r
                        \r
-                       proxy           : null,\r
+                       _currentFixStart  : 0,\r
+                       _currentFixBegin  : 0,\r
+\r
+                       _durationFixPhase : X_HTMLAudio_durationFix ? 1 : 0,\r
+                       _durationFixSkip  : X_HTMLAudio_durationFix && !X_HTMLAudio_need1stTouch,                       \r
+                       _lastCurrentTime  : 0,\r
+\r
+                       _shortPlayFixON   : false,\r
+                       _shortPlayFixTime : 0,\r
                        \r
-                       _closed         : true,\r
-                       _lastUserAction : '',\r
+                       _endedFixON               : false,\r
                        \r
-                       _loop           : false,\r
-                       _startTime      : 0,\r
-                       _volume         : 0.5,\r
-                       _autoplay       : false,\r
+                       _kickTimerID      : false, // 処理が混み入ると AOSP で音声が再生されない\r
+                       _lastKickTime     : 0,\r
                        \r
-                       Constructor : function( proxy, source, option ){\r
-                               this.proxy   = proxy;\r
-                               this._closed = false;\r
-                               \r
-                               if( option.loop )      this._loop      = true;\r
-                               if( option.startTime ) this._startTime = option.startTime;\r
-                               if( option.volume )    this._volume    = option.volume;\r
+                       'Constructor' : function( disatcher, source, option ){\r
+                               var raw;\r
                                \r
-                               this._rawObject = X_Audio_rawAudio || new Audio( source );//X.Node.create( 'audio', { src : source } ).appendToRoot();//( X.X_Node_systemNode );\r
+                               this.disatcher = disatcher || this;\r
+                               this._closed   = false;\r
+                               this._src          = source;\r
                                \r
-                               this.listen( [\r
-                                               'loadstart', 'load', 'progress', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'play', 'pause', 'loadedmetadata',\r
-                                               'loadeddata', 'waiting', 'playing', 'canplay', 'canplaythrough', 'seeking', 'seeked', 'timeupdate', 'ended',\r
-                                               'ratechange', 'durationchange', 'volumechange' ], this.handleEventProxy );                              \r
-                               \r
-                               if( X_Audio_rawAudio ){\r
-                                       X_Audio_rawAudio.src = source;\r
-                                       X_Audio_rawAudio.load(); // 要る?\r
-                                       X_Audio_rawAudio = null;\r
+                               if( X_HTMLAudio_shortPlayFix ){\r
+                                       this._shortPlayFixON = X_URL_getEXT( source ) === 'm4a';\r
                                };\r
+                               \r
+                               this.setState( option );\r
 \r
-                               //document.body.appendChild( this._rawObject );\r
-\r
-                               this._rawObject.volume   = this._volume;\r
-                               this._rawObject.autoplay = false;\r
-                               option.autoplay && X.Timer.once( 100, this, this.play );\r
+                               if( option[ 'useVideo' ] ){\r
+                                       raw = document.createElement( 'video' );\r
+                                       raw.preload                   = 'none'; // auto, metadata, none\r
+                                       raw.autoplay              = false, // no-auto\r
+                                       raw.loop                          = false;\r
+                                       raw.muted                         = false;\r
+                                       raw.crossorigin       = option[ 'crossorigin' ] || ''; //crossorigin: "anonymous", X.URL.isSameDomain() で切り替え\r
+                                       raw.style.cssText         = 'position:absolute;bottom:0;left:-50px;width:100px;height:100px;opacity:0;';\r
+                                       raw.controls              = false;\r
+                                       raw.WebKitPlaysInline = true;\r
+                                       raw.src                       = source;\r
+                                       X_elmBody.appendChild( raw );\r
+                               } else {\r
+                                       raw = X_TEMP.rawAudio || new X_Audio_constructor( source );\r
+                                       // X_Doc_create( 'audio', { src : source } )[ 'appendTo' ]( X.Doc.body );\r
+                                       raw.autobuffer = raw.autoplay = false;\r
+                               };\r
                                \r
-                               this.listenOnce( X.Event.KILL_INSTANCE );\r
-                       },\r
-                       \r
-                       handleEvent : function( e ){\r
-                               switch( e.type ){\r
+                               this[ '_rawObject' ] = raw;\r
+                               \r
+                               this[ 'listen' ]( [\r
+                                               X_EVENT_KILL_INSTANCE,\r
+                                               X_HTMLAudio_playTrigger,\r
+                                               //'loadstart', 'load',\r
+                                               'progress', 'error',\r
+                                               // 'suspend', 'abort', 'emptied', 'stalled',\r
+                                               // 'play', 'pause', 'seeked', 'ratechange', 'volumechange',\r
+                                               'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough',\r
+                                               'playing', 'waiting', 'seeking',\r
+                                               'durationchange', 'timeupdate', 'ended' ] );\r
 \r
-                                       case X.Event.KILL_INSTANCE :\r
-                                               break;\r
+                               if( X_TEMP.rawAudio ){\r
+                                       raw.src = source;\r
+                                       raw.load(); // AOSP2 で必要\r
+                                       delete X_TEMP.rawAudio;\r
                                };\r
                        },\r
-                       /*\r
-                        * http://uguisu.skr.jp/html/table3.html\r
-                        */\r
-                       handleEventProxy : function( e ){\r
-                               console.log(e.type);\r
+                       \r
+                       handleEvent : function( e ){\r
+                               var raw    = this[ '_rawObject' ],\r
+                                       actualEnded = e.type === 'ended',\r
+                                       ended       = actualEnded,\r
+                                       ready       = e.type === X_HTMLAudio_playTrigger,\r
+                                       eventType, duration, end, now;\r
+                               \r
+                               // global に公開\r
+                               //window[ '__rawAudio' ] = this[ '_rawObject' ];\r
                                \r
+                               e.type !== 'timeupdate' && console.log( ' > ' + e.type );\r
+                                       \r
                                switch( e.type ){\r
-                                       case 'loadstart' :      //      ブラウザがコンテンツの検索を開始した場合に発生\r
+\r
+                                       case X_EVENT_KILL_INSTANCE :\r
+                                               // 【javascript】モバイル向けブラウザでも音を鳴らしたい【WebAudio】\r
+                                               // http://ingaouhou.com/archives/3633\r
+                                               // ・使い終わったインスタンスはload()しておくとやや安定\r
+                                               this.playing && this.actualPause();\r
+                                               delete this._closed;\r
+                                               delete this._loaded;\r
+                                               \r
+                                               raw.src = '';\r
+                                               raw.load();\r
+                                               \r
+                                               // removeChild for video\r
                                                break;\r
-                                       case 'progress' :       //      ブラウザがコンテンツの取得を実行した場合に発生\r
-                                               //console.log( e.loaded + ' ' + e.total * 100 + '%' );\r
-                                               console.log( this._rawObject.buffered.end(0) / this._rawObject.duration * 100 + '%' );\r
+\r
+                                       //case 'loadstart' :      //    ブラウザがコンテンツの検索を開始した場合に発生\r
+                                               //break;\r
+                                       case 'progress' :          //   ブラウザがコンテンツの取得を実行した場合に発生\r
+                                               // console.log( e.loaded + ' ' + e.total * 100 + '%' );\r
+                                               // iem9 で常に0 raw.networkState;\r
+                                               // opera Android 12 で buffered.end() へのアクセスはエラー try catch も無効、iem9 は常に end(0) = 0\r
+                                               //console.log( 'buffered.end ' + raw.buffered && raw.buffered.end(0) ); \r
                                                break;\r
-                                       case 'suspend' :        //      ブラウザが意図的にコンテンツの取得を現在行っていない場合に発生(ダウンロードは未完了)\r
-                                       case 'abort' :          //      ダウンロードの完了前にコンテンツの取得を停止した場合に発生(この停止はエラーによるものではない)\r
-                                       case 'error' :          //      コンテンツの取得実行中にエラーが発生した場合に発生\r
-                                       case 'emptied' :        //      読み込み中に致命的なエラーが発生したか、実行状態ででload()メソッドが実行された場合に発生\r
-                                       case 'stalled' :        //      ブラウザがコンテンツの取得を試みたが、データがまだ用意されていない場合に発生\r
-                                       case 'play' :           //      再生が開始された。play()メソッドからの復帰後に発生する場合に発生\r
-                                       case 'pause' :          //      再生が一時停止された。pauseメソッドからの復帰後に発生する場合に発生\r
-                                       case 'loadedmetadata' : //      ブラウザがメディアリソースの長さと寸法を判定した場合に発生\r
-                                       case 'loadeddata' :     //      コンテンツの表示を現在の再生位置で初めて行えるようになった場合に発生\r
-                                       case 'waiting' :        //      次のフレームが利用不可のため再生を停止したが、そのフレームがやがて利用可能になると想定している場合に発生\r
-                                       case 'playing' :        //      再生が開始された場合に発生\r
-                                       case 'canplay' :        //      今すぐに再生を再開できるが、バッファリングが不十分でコンテンツを最後まで表示できないと予測している場合に発生\r
+                                       \r
+                                       case 'loadeddata' :      //     コンテンツの表示を現在の再生位置で初めて行えるようになった場合に発生\r
+                                               if( !this._endedFixON ){\r
+                                                       ready = true;\r
+                                               };\r
+                                       case 'canplay' :                //      今すぐに再生を再開できるが、バッファリングが不十分でコンテンツを最後まで表示できないと予測している場合に発生\r
+                                               if( X_HTMLAudio_durationFix && !X_HTMLAudio_need1stTouch && this._durationFixPhase === 1 ){\r
+                                                       console.log( '▲ DurationFix の開始 @' + e.type );\r
+                                                       this._durationFixPhase = 2;\r
+                                                       raw.play();\r
+                                                       raw.currentTime = 0; // 必要!\r
+                                               };\r
                                        case 'canplaythrough' : //      今すぐに再生を開始してもバッファリングで停止することなく最後まで表示できると予測している場合に発生\r
-                                       case 'seeking' :        //      シークがtrueに変化し、イベントを発生させるのに十分な時間がシーク操作にかかっている場合に発生\r
-                                       case 'seeked' :         //      シークがfalseに変化した場合に発生\r
-                                       case 'timeupdate' :     //      通常の再生が行われ現在の再生位置の変化が起こった場合に発生\r
+                                               if( this._endedFixON ){\r
+                                                       console.log( '▽ onEndedFix の終了 @' + e.type  );\r
+                                                       this._endedFixON = false;\r
+                                                       this.actualPlay();\r
+                                               };\r
+                                       case 'loadedmetadata' : //      ブラウザがメディアリソースの長さと寸法を判定した場合に発生\r
+                                       case 'durationchange' : //  duration属性が更新された場合に発生\r
+                                               if( !this.duration ){\r
+                                                       duration = raw.duration;\r
+                                               };\r
                                                break;\r
-                                       \r
-                                       case 'ended' :\r
-                                               //!this._closed && this._lastUserAction !== 'stop' && this._loop && this.play();\r
+       \r
+                                       // TODO firefox で 短い音声でtimeupdate, ended が発火しない <- 最後の音に無音部分を追加する\r
+                                       case 'timeupdate' :      //     通常の再生が行われ現在の再生位置の変化が起こった場合に発生\r
+                                               if( this._durationFixPhase & 3 ){ // 1 or 2\r
+                                                       duration = raw.duration;\r
+                                               } else\r
+                                               if( raw.currentTime === this._lastCurrentTime ){\r
+                                                       eventType = X_EVENT_MEDIA_WAITING;\r
+                                               } else {\r
+                                                       this._lastCurrentTime = raw.currentTime;\r
+\r
+                                                       if( this.playing ){\r
+                                                               end = X_Audio_getEndTime( this ) + this._shortPlayFixTime;\r
+                                                               now = this.getActualCurrentTime();\r
+                                                               //console.log( now + ' / ' + end );\r
+                                                               if( 0 + end <= 0 + now ){ // 0+ なぜか iem9 で必要,,,\r
+                                                                       if( this.autoLoop ){\r
+                                                                               console.log( '☆★☆ 曲の最後に到達 @timeupdate now-end:' + ( now - end ) );\r
+                                                                               ended = true;\r
+                                                                               if( X_HTMLAudio_endedFixIOS ) actualEnded = true;\r
+                                                                       } else {\r
+                                                                               this.actualPause();\r
+                                                                               eventType = X_EVENT_MEDIA_ENDED;\r
+                                                                       };\r
+                                                               } else {\r
+                                                                       eventType = X_EVENT_MEDIA_PLAYING;\r
+                                                               };\r
+                                                       };\r
+                                               };\r
                                                break;\r
        \r
-                                       case 'ratechange' :     // defaultPlaybackRate属性とplaybackRate属性のどちらかが更新された場合に発生\r
-                                       case 'durationchange' : // duration属性が更新された場合に発生\r
-                                       case 'volumechange' :   // volume属性とmuted属性のどちらかが変化した場合に発生\r
+                                       //case 'stalled' :              //      ブラウザがコンテンツの取得を試みたが、データがまだ用意されていない場合に発生\r
+                                               // Android2 で ready 扱い?\r
+                                       //case 'suspend' :              //      ブラウザが意図的にコンテンツの取得を現在行っていない場合に発生(ダウンロードは未完了)\r
+                                               // iOS で ready 扱い\r
+                                       //case 'emptied' :              //      読み込み中に致命的なエラーが発生したか、実行状態ででload()メソッドが実行された場合に発生\r
+                                       //case 'abort' :                  //    ダウンロードの完了前にコンテンツの取得を停止した場合に発生(この停止はエラーによるものではない)\r
+                                       //      break;\r
+                                               \r
+                                       case 'error' :            //    コンテンツの取得実行中にエラーが発生した場合に発生\r
+                                               // Opera12 src = '' で error が発生、無視する\r
+                                               // eventType = X_EVENT_ERROR;\r
+                                               break;\r
+                                               \r
+                                       case 'playing' :                //      再生が開始された場合に発生\r
+                                               if( X_HTMLAudio_volumeFix ){\r
+                                                       raw.volume = this.gain;\r
+                                               };\r
+                                               if( X_HTMLAudio_currentTimeFix ){\r
+                                                       this._currentFixStart = X_Timer_now(); // 正確な再生開始時間に補正\r
+                                               };\r
+                                               eventType = !this._durationFixSkip && !this._endedFixON ? X_EVENT_MEDIA_PLAYING : X_EVENT_MEDIA_WAITING;\r
+                                       //case 'play' :            //   再生が開始された。play()メソッドからの復帰後に発生する場合に発生\r
+                                       //case 'pause' :                  //    再生が一時停止された。pauseメソッドからの復帰後に発生する場合に発生\r
+                                       //case 'seeked' : \r
+                                       //case 'ratechange' :    // defaultPlaybackRate属性とplaybackRate属性のどちらかが更新された場合に発生\r
+                                       //case 'volumechange' :   // volume属性とmuted属性のどちらかが変化した場合に発生\r
+                                               break;\r
+                                       \r
+                                       case 'waiting' :                //      次のフレームが利用不可のため再生を停止したが、そのフレームがやがて利用可能になると想定している場合に発生\r
+                                               eventType = X_EVENT_MEDIA_WAITING;\r
+                                               break;\r
+                                       case 'seeking' :                //      シークがtrueに変化し、イベントを発生させるのに十分な時間がシーク操作にかかっている場合に発生\r
+                                               eventType = X_EVENT_MEDIA_SEEKING;\r
+                                               break;\r
+                               };\r
+                               \r
+                               // duration は Infinity, NaN, 0 の場合があるため、これを除外する\r
+                               if( 0 < duration && X_Type_isFinite( duration ) ){\r
+                                       this.duration = duration * 1000;\r
+\r
+                                       if( this._durationFixPhase === 2 ){\r
+                                               console.log( '▼ DurationFix の終了 @' + e.type );\r
+                                               this._durationFixPhase = 4;\r
+                                               \r
+                                               ready = true;\r
+                                               \r
+                                               if( this.autoplay || this._loaded ){\r
+                                                       console.log( '☆ 再生 <- DurationFix の終了' );\r
+                                                       this._durationFixSkip = false;\r
+                                                       this.actualPlay();\r
+                                               } else\r
+                                               if( X_HTMLAudio_pauseFix ){\r
+                                                       console.log( '☆ PAUSE <- DurationFix の終了' );\r
+                                                       //raw.src = '';\r
+                                                       //raw.load();\r
+                                                       this.actualPause();                             \r
+                                               };\r
+                                       } else\r
+                                       if( this._durationFixPhase ){\r
+                                               this._durationFixPhase = 4;\r
+                                       };                                      \r
+                               };\r
+\r
+                               this._loaded  = this._loaded || ready;\r
+\r
+                               // \r
+                               if( ended ){\r
+                                       if( !this._closed && this.autoLoop ){\r
+                                               if( !( this.disatcher[ 'dispatch' ]( X_EVENT_MEDIA_BEFORE_LOOP ) & X_CALLBACK_PREVENT_DEFAULT ) ){\r
+                                                       this.looped = true;\r
+                                                       this.disatcher[ 'dispatch' ]( X_EVENT_MEDIA_LOOPED );\r
+                                                       ( X_HTMLAudio_endedFixAOSP3 || X_HTMLAudio_endedFixAOSP4 || X_HTMLAudio_endedFixIOS ) && actualEnded && console.log( '☆★☆ 音声の継続用の play() @ended' );\r
+                                                       this.actualPlay(\r
+                                                               ( X_HTMLAudio_endedFixAOSP4 || X_HTMLAudio_endedFixIOS ) && actualEnded,\r
+                                                               ( X_HTMLAudio_endedFixAOSP3 || X_HTMLAudio_endedFixAOSP2 ) && actualEnded );\r
+                                               };\r
+                                       } else {\r
+                                               this.seekTime = 0;\r
+                                               delete this.playing;\r
+                                               this.disatcher[ 'dispatch' ]( X_EVENT_MEDIA_ENDED );\r
+                                       };\r
+                               } else\r
+                               if( this._loaded && this.duration && !this._ready ){\r
+                                       this._ready = true;\r
+                                       this.autoplay && X_Timer_once( 16, this, this.play );\r
+                                       this.disatcher[ 'asyncDispatch' ]( X_EVENT_READY );\r
+                                       console.log( '> Audio Loaded!! ' + e.type + ' d:' + ( this.duration | 0 ) );\r
+                               } else\r
+                               if( eventType ){\r
+                                       this.disatcher[ 'dispatch' ]( eventType );\r
+                                       eventType === X_EVENT_ERROR && this[ 'kill' ]();\r
                                };\r
-                               //console.log( 'html5 ' + e.type + ' ' + ( this.proxy._listeners && this.proxy._listeners[ e.type ] && this.proxy._listeners[ e.type ].length ) );\r
-                               //e.type === 'canplaythrough' && console.dir( e );\r
-                               this.proxy.dispatch( e );\r
-                       },\r
-                       \r
-                       close : function(){\r
-                               // pool, proxy を外す\r
-                               //this.kill();\r
                        },\r
-                       \r
-                       play : function( position ){\r
+\r
+                       actualPlay : function( forcePlay, forceReload ){\r
+                               var raw = this[ '_rawObject' ],\r
+                                       begin, end;\r
+                               \r
                                // もし kill 後に autoplayTimer で呼ばれても、_closed==true なので平気\r
-                           if( this._closed ) return;\r
-                           this._lastUserAction = 'play';\r
-                       \r
-                           if( X_UA.Chrome ){ // [CHROME][FIX] volume TODO どの version で 修正される?\r
-                               // [!] delay\r
-                               X.Timer.once( 0, this, this._fixForChrome, [ this._rawObject.volume ] );\r
-                               this._rawObject.volume = 0;\r
-                           };\r
-                           \r
-                           if( !this._rawObject.paused ){\r
-                               this.currentTime( this._startTime );\r
-                           };\r
-                           this._rawObject.play();\r
+                               if( this._closed ) return;\r
+                               \r
+                               \r
+                               if( !raw.src ){ // X_HTMLAudio_pauseFix によって src が空になっている\r
+                                       console.log( '○ 削除された audio.src の復帰' );\r
+                                       raw.src = this._src;\r
+                                       //return;\r
+                               };                              \r
+                               \r
+                               if( !this._ready && ( !X_HTMLAudio_durationFix || !X_HTMLAudio_need1stTouch ) ){\r
+                                       this.autoplay = true;\r
+                                       return;\r
+                               };\r
+\r
+                               if( X_HTMLAudio_durationFix && X_HTMLAudio_need1stTouch && this._durationFixPhase === 1 ){\r
+                                       console.log( '▲ DurationFix の開始(タッチ用)' );\r
+                                       this._durationFixPhase = 2;\r
+                               };\r
+\r
+                               end   = X_Audio_getEndTime( this );\r
+                               begin = X_Audio_getStartTime( this, end, true );\r
+\r
+                               this._lastCurrentTime = begin / 1000;\r
+\r
+                               if( this._shortPlayFixON ){\r
+                                       this._shortPlayFixTime = ( 1000 < end - begin ) ? 200 : 400;\r
+                                       if( this.duration < end + this._shortPlayFixTime ){\r
+                                               this._shortPlayFixTime = this.duration - end;\r
+                                       };\r
+                               };\r
+\r
+                               if( this._durationFixSkip || this._endedFixON ){\r
+                                       console.log( '☆ audio.play をスキップ ' + begin + ' -> ' + end + ' crt:' + ( raw.currentTime | 0 ) );\r
+                               } else {\r
+                                       if( !this.playing ){\r
+                                               if( X_HTMLAudio_volumeFix ){\r
+                                                       raw.volume = 0;\r
+                                               } else {\r
+                                                       raw.volume = X_HTMLAudio_volumeEnabled ? this.gain : 1;\r
+                                               };\r
+                                               raw.play();\r
+                                               this.playing = true;\r
+                                               \r
+                                               if( X_UA[ 'AOSP' ] && !this._kickTimerID ){\r
+                                                       this._kickTimerID = X_Timer_add( 100, 0, this, this._kick );\r
+                                               };\r
+                                       } else\r
+                                       if( X_HTMLAudio_needPlayForSeek || forcePlay ){\r
+                                               raw.play();\r
+                                               console.log( '[HTMLAudio] currentTime より先.' );\r
+                                       };\r
+                                       \r
+                                       //http://himaxoff.blog111.fc2.com/blog-entry-97.html\r
+                                       //Firefox3.6では一度も play() していない状態で currentTime = 0 を実行するとエラーになる。\r
+                                       //また、GoogleChrome7 では currentTime = 0 直後に play() すると、pause()した位置前後の音が混ざることがある。(少なくとも自分の環境では)                                                                        \r
+                                       raw.currentTime = this._lastKickTime = this._lastCurrentTime;\r
+                                       console.log( '[HTMLAudio] play ' + begin + ' -> ' + end + ' crt:' + ( raw.currentTime | 0 ) + ' last:' + this._lastCurrentTime );\r
+                                       \r
+                                       // Android4.0.5 で ended イベント時に currentTime が duration に張り付いたまま変更できない\r
+                                       if( forceReload || ( X_HTMLAudio_endedFixAOSP4 && raw.duration && raw.currentTime === raw.duration ) ){\r
+                                               raw.src          = '';\r
+                                               raw.src          = this._src;\r
+                                               this.playing     = false;\r
+                                               this._endedFixON = true;\r
+                                               console.log( '△ onEndedFix の開始' );\r
+                                               raw.currentTime  = this._lastCurrentTime;\r
+                                               this.disatcher[ 'dispatch' ]( X_EVENT_MEDIA_WAITING );\r
+                                               X_HTMLAudio_endedFixAOSP2 && raw.load();\r
+                                       };                                                      \r
+                               };\r
+\r
+                               if( X_HTMLAudio_currentTimeFix ){\r
+                                       this._currentFixBegin = begin;\r
+                                       this._currentFixStart = X_Timer_now();\r
+                               };\r
                        },\r
                        \r
-                       // [CHROME][FIX] volume\r
-                       _fixForChrome : X_UA.Chrome && function( volume ){\r
-                               !this._closed && ( this._rawObject.volume = volume );\r
-                       },\r
+                               _kick : function(){\r
+                                       var raw = this[ '_rawObject' ];\r
+                                       \r
+                                       console.log( ' >> KICK ? ct:' + ( raw.currentTime ) + ' lkt:' + this._lastKickTime );\r
+                                       if( this.playing && raw.currentTime === this._lastKickTime ){\r
+                                               this.disatcher[ 'dispatch' ]( X_EVENT_MEDIA_WAITING );\r
+                                               console.log( ' >> KICK !!' );\r
+                                               raw.play();\r
+                                       } else {\r
+                                               delete this._kickTimerID;\r
+                                               return X_CALLBACK_UN_LISTEN;\r
+                                       };\r
+                               },\r
                        \r
-                       pause : function(){\r
-                           if( !this._closed && !this._rawObject.error ){\r
-                               this._lastUserAction = 'pause';\r
-                               this._rawObject.pause();        \r
-                           };\r
+                       actualPause : function(){\r
+                               console.log( '[HTMLAudio] pause' );\r
+                               \r
+                               this.seekTime = this.getActualCurrentTime();\r
+\r
+                               delete this._currentFixStart;\r
+\r
+                               !this[ '_rawObject' ].error && this[ '_rawObject' ].pause();\r
+                               \r
+                               if( X_HTMLAudio_pauseFix ){\r
+                                       this[ '_rawObject' ].src = '';\r
+                                       if( X_HTMLAudio_durationFix ){\r
+                                               delete this._durationFixPhase;\r
+                                               delete this._durationFixSkip;\r
+                                       };\r
+                               };\r
+                               delete this.playing;\r
                        },\r
                        \r
-                       stop : function(){\r
-                           if( !this._closed && !this._rawObject.error ){\r
-                               this._lastUserAction = 'stop';\r
-                               this._rawObject.pause();\r
-                               this.currentTime( this._startTime );\r
-                           };\r
+                       getActualCurrentTime : function(){\r
+                               return ( X_HTMLAudio_currentTimeFix ?\r
+                                                       X_Timer_now() - this._currentFixStart + this._currentFixBegin :\r
+                                                       this[ '_rawObject' ].currentTime * 1000 | 0 );\r
                        },\r
-                       \r
-                       loop : function( v ){\r
-                           if( v === undefined ) return this._loop;\r
-                           this._rawObject.loop = this._loop = v;\r
+               /*\r
+               http://www.w3schools.com/tags/av_prop_error.asp\r
+               1 = MEDIA_ERR_ABORTED - fetching process aborted by user\r
+               2 = MEDIA_ERR_NETWORK - error occurred when downloading\r
+               3 = MEDIA_ERR_DECODE - error occurred when decoding\r
+               4 = MEDIA_ERR_SRC_NOT_SUPPORTED - audio/video not supported\r
+               */                      \r
+                       getActualError : function(){\r
+                               return this[ '_rawObject' ].error || 0;\r
                        },\r
-       \r
-                       state : function(){\r
-                           var paused = !!this._rawObject.paused,\r
-                               ended  = !!this._rawObject.ended;\r
-                       \r
-                           if( this._lastUserAction === 'stop' ){\r
-                               if( paused ){\r
-                                   paused = false;\r
-                                   ended  = true;\r
-                               };\r
-                           };\r
                        \r
-                           return {\r
-                               loop     : this._rawObject.loop,\r
-                               error    : this._rawObject.error    || 0,   // 0, 1 ~ 4\r
-                               paused   : paused,\r
-                               ended    : ended,\r
-                               source   : this._rawObject.src      || '',\r
-                               duration : this._rawObject.duration || 0\r
-                           };\r
-                       },\r
-       \r
-                       volume : function( v ){\r
-                           if( v === undefined ) return this.audio.volume;\r
-                           this._rawObject.volume = v;\r
-                       },\r
-       \r
-                       startTime : function( time ){\r
-                           if( time === undefined ) return this._startTime;\r
-                           this._startTime = time;\r
-                       },\r
-       \r
-                       currentTime : function( time ){\r
-                           if( time === undefined ) return this._rawObject.currentTime;\r
-                           this._rawObject.currentTime = time;\r
-                       },\r
-       \r
-                       isPlaying : function(){\r
-                           return !this._rawObject.error && !this._rawObject.paused && !this._rawObject.ended;\r
+                       afterUpdateState : function( result ){\r
+                               if( result & 3 ){ // seek\r
+                                       this.actualPlay();\r
+                               } else\r
+                               if( ( result & 4 ) && X_HTMLAudio_volumeEnabled ){\r
+                                  this[ '_rawObject' ].volume = this.gain;\r
+                               };                              \r
                        }\r
        \r
                }\r
        );\r
        \r
+       X_HTMLAudio && X_Audio_BACKENDS.push(\r
+               {\r
+                       backendID   : 2,\r
+                       \r
+                       backendName : 'HTMLAudio',\r
+                       \r
+                       canPlay : X_Audio_codecs,\r
+               /*\r
+                * HTML5 の audio 要素と video 要素でサポートされているメディアフォーマット\r
+                * https://developer.mozilla.org/ja/docs/Web/HTML/Supported_media_formats\r
+                * \r
+                * 主要ブラウザのHTML5 audioタグで使えるファイル形式の再生対応状況を調べてみた\r
+                * http://sothis.blog.so-net.ne.jp/2010-10-27\r
+                * ダメ元で仕様に含まれていない SHOUTcast もテストしてみました。\r
+                * \r
+                * IE9 の HTML5 Audio について\r
+                * http://kentablog.cluscore.com/2011/05/ie9-html5-audio.html\r
+                * 1.Audioオブジェクトを作ることができないので、Audioタグを使う\r
+                * 2.クロスドメインアクセスには、「clientaccesspolicy.xml」か「crossdomain.xml」が必要\r
+                * 3.wav が不可\r
+                * \r
+                * IE9でHTML5 autio タグが無効になる\r
+                * http://bbs.wankuma.com/index.cgi?mode=al2&namber=64886&KLOG=109\r
+                *  IEのバージョン9.0.8112.16421では、Audioオブジェクトのnewも対応してました。\r
+                *  createElement等で動的生成すると、よろしくない\r
+                * \r
+                * media-can-play-wav-audio.html\r
+                * https://github.com/adobe/webkit/blob/master/LayoutTests/media/media-can-play-wav-audio.html\r
+                * testExpected("audio.canPlayType('audio/wav; codecs=1')", "probably");\r
+                * \r
+                * HTML5 audioタグ ブラウザ間の違い\r
+                * http://wiki.bit-hive.com/tomizoo/pg/HTML5%20audio%A5%BF%A5%B0%20%A5%D6%A5%E9%A5%A6%A5%B6%B4%D6%A4%CE%B0%E3%A4%A4\r
+                *  - volume, muted iPhone(iOS4-6)、Android(2.3.6)では動作せず。\r
+                *  - FireFox3.6, Android 2.3.6については、src変更後、load()を呼び出さないと切り替わらなかった。iPhoneはload()が不要。\r
+                */     \r
+                       detect : function( proxy, source, ext ){\r
+                               proxy[ 'asyncDispatch' ]( { type : X_EVENT_COMPLETE, canPlay : X_Audio_codecs[ ext ] } );\r
+                       },\r
+                       \r
+                       klass : X_HTMLAudio\r
+                       \r
+               } );\r
+\r
+/*\r
+ * \r
+ * howler.js\r
+ *      codecs = {\r
+         mp3: !!audioTest.canPlayType('audio/mpeg;').replace(/^no$/, ''),\r
+         opus: !!audioTest.canPlayType('audio/ogg; codecs="opus"').replace(/^no$/, ''),\r
+         ogg: !!audioTest.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/, ''),\r
+         wav: !!audioTest.canPlayType('audio/wav; codecs="1"').replace(/^no$/, ''),\r
+         aac: !!audioTest.canPlayType('audio/aac;').replace(/^no$/, ''),\r
+         m4a: !!(audioTest.canPlayType('audio/x-m4a;') || audioTest.canPlayType('audio/m4a;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, ''),\r
+         mp4: !!(audioTest.canPlayType('audio/x-mp4;') || audioTest.canPlayType('audio/mp4;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, ''),\r
+         weba: !!audioTest.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/, '')\r
+       };\r
+ */\r
+       \r
 };\r
 \r
 \r