0.6.x/js/07_audio/02_XHTMLAudio.js

   1 \r
   2 /*\r
   3  * original : uupaa-js HTML5Audio.js\r
   4  * https://code.google.com/p/uupaa-js/source/browse/trunk/0.8/src/Audio/HTML5Audio.js?r=568\r
   5  */\r
   6 \r
   7 var X_Audio_HTMLAudio_playTrigger =\r
   8                 6 <= X_UA.iOS ? 'loadeddata' :\r
   9                 X_UA.iOS ? 'suspend' :\r
  10                 X_UA.AndroidBrowser2 ? 'stalled' : // Android 2.3.5(SBM101SH) では stalled は発生しない,,,\r
  11                 X_UA.AndroidBrowser4 ? 'loadeddata' : \r
  12                 X_UA.OperaMobile || X_UA.OperaTablet ? 'loadeddata' : 'canplay',\r
  13         X_Audio_HTMLAudioWrapper,\r
  14         X_Audio_constructor = window.Audio || window.HTMLAudioElement,\r
  15         X_Audio_rawAudio,\r
  16         // Opera Mobile 12 android4.4.4 & 2.3.5 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
  17         X_Audio_HTMLAudioWrapper_currentTimeFix  = !!X_UA.OperaMobile || !!X_UA.OperaTablet, // || ( X_UA.WinPhone && X_UA.IE9 ),\r
  18         // Android1.6+MobileOpera12では無理っぽい、、、\r
  19         X_Audio_HTMLAudioWrapper_badOperaAndroid = X_Audio_HTMLAudioWrapper_currentTimeFix && X_UA.Android < 2,\r
  20 \r
  21         // 一方 Desktop の Opera12 は、loadeddata 等では duration が infinity で、再生後の durationchange 時に duration が判明する。\r
  22         // opera12 volume, mute の変更が2度目以降できない\r
  23         // 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
  24         // canplay で play() durationchange で duration が取れたら loadedmetadata->loadeddata -> canplay する\r
  25         // boombox.js に書いてあった currentTime の効かないブラウザってこいつのことみたい、、、\r
  26         // Opera12.17 Win32(XP) portable apps は勝手に再生が始まる、、、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
  27         // opera11、10.54 WinXP はまとも、、、\r
  28         // X_Audio_Sprite_handleEvent でも使用\r
  29         X_Audio_HTMLAudioWrapper_ieMobile9Fix    = ( X_UA.WinPhone && X_UA.IE9 ),\r
  30         X_Audio_HTMLAudioWrapper_durationFix     = ( !X_Audio_HTMLAudioWrapper_currentTimeFix && 12 <= X_UA.Opera ),\r
  31         \r
  32         X_Audio_HTMLAudioWrapper_shortPlayFix    = !!X_UA.AndroidBrowser4,\r
  33         \r
  34         X_Audio_codecs;\r
  35 \r
  36 if( X_Audio_constructor && !X_Audio_HTMLAudioWrapper_badOperaAndroid ){\r
  37         //http://himaxoff.blog111.fc2.com/blog-entry-97.html\r
  38         //引数なしで new Audio() とすると、Operaでエラーになるそうなので注意。\r
  39         X_Audio_rawAudio = new X_Audio_constructor( '' );\r
  40 \r
  41         if( X_Audio_rawAudio.canPlayType ){\r
  42                 X_Audio_codecs = {\r
  43               mp3  : X_Audio_rawAudio.canPlayType('audio/mpeg'),\r
  44               opus : X_Audio_rawAudio.canPlayType('audio/ogg; codecs="opus"'),\r
  45               ogg  : X_Audio_rawAudio.canPlayType('audio/ogg; codecs="vorbis"'),\r
  46               wav  : X_Audio_rawAudio.canPlayType('audio/wav; codecs="1"'),\r
  47               aac  : X_Audio_rawAudio.canPlayType('audio/aac'),\r
  48               m4a  : X_Audio_rawAudio.canPlayType('audio/x-m4a') + X_Audio_rawAudio.canPlayType('audio/m4a') + X_Audio_rawAudio.canPlayType('audio/aac'),\r
  49               mp4  : X_Audio_rawAudio.canPlayType('audio/x-mp4') + X_Audio_rawAudio.canPlayType('audio/mp4') + X_Audio_rawAudio.canPlayType('audio/aac'),\r
  50               weba : X_Audio_rawAudio.canPlayType('audio/webm; codecs="vorbis"')\r
  51                 };\r
  52                 (function( k, v ){\r
  53                         for( k in X_Audio_codecs ){\r
  54                                 if( X_EMPTY_OBJECT[ k ] ) continue;\r
  55                                 v = X_Audio_codecs[ k ];\r
  56                                 X_Audio_codecs[ k ] = v && v.split( 'no' ).join( '' );\r
  57                                 console.log( k + ' ' + X_Audio_codecs[ k ] );\r
  58                         };\r
  59                 })();\r
  60         } else {\r
  61                 // iOS3.2.3\r
  62                 X_Audio_codecs = {\r
  63               mp3  : X_UA.IE || X_UA.Chrome || ( X_UA.Windows && X_UA.Safari ),\r
  64               ogg  : 5 <= X_UA.Gecko || X_UA.Chrome || X_UA.Opera,\r
  65               wav  : X_UA.Gecko || X_UA.Opera || ( X_UA.Windows && X_UA.Safari ),\r
  66               aac  : X_UA.IE || X_UA.WebKit,\r
  67               m4a  : X_UA.IE || X_UA.WebKit,\r
  68               mp4  : X_UA.IE || X_UA.WebKit,\r
  69               weba : 2 <= X_UA.Gecko || 10.6 <= X_UA.Opera // firefox4+(Gecko2+)\r
  70                 };\r
  71         };\r
  72         \r
  73         X_Audio_HTMLAudioWrapper = X.EventDispatcher.inherits(\r
  74                 'X.AV.HTML5AudioWrapper',\r
  75                 X.Class.POOL_OBJECT,\r
  76                 {\r
  77                         \r
  78                         proxy           : null,\r
  79                         \r
  80                         startTime       : 0,\r
  81                         endTime         : -1,\r
  82                         loopStartTime   : -1,\r
  83                         loopEndTime     : -1,\r
  84                         seekTime        : -1,\r
  85                         duration        : 0,\r
  86                         \r
  87                         playing         : false,\r
  88                         error           : 0,                    \r
  89                         loop            : false,\r
  90                         looped          : false,\r
  91                         autoplay        : false,\r
  92                         volume          : 0.5,\r
  93 \r
  94                         _playTime        : 0,\r
  95                         _closed          : true,\r
  96                         _loaded          : false,\r
  97                         _beginTime       : 0,\r
  98                         _playForDuration : 0,\r
  99                         _lastCurrentTime : 0,\r
 100                         _src             : '',\r
 101                         \r
 102                         Constructor : function( proxy, source, option ){\r
 103                                 this.proxy   = proxy;\r
 104                                 this._closed = false;\r
 105                                 \r
 106                                 X_AudioWrapper_updateStates( this, option );\r
 107 \r
 108                                 if( option[ 'useVideo' ] ){\r
 109                                         this._rawObject = document.createElement( 'video' );\r
 110                         this._rawObject.preload           = 'none'; // auto, metadata, none\r
 111                         //this._rawObject.autoplay = false, // no-auto\r
 112                         this._rawObject.loop     = false;\r
 113                         this._rawObject.muted    = false;\r
 114                         //this._rawObject.crossorigin       = option[ 'crossorigin' ] || ''; //crossorigin: "anonymous", X.URL.isSameDomain() で切り替え\r
 115                         this._rawObject.style.cssText     = 'position:absolute;bottom:0;left:-50px;width:100px;height:100px;opacity:0;';\r
 116                                         this._rawObject.controls          = false;\r
 117                                         this._rawObject.WebKitPlaysInline = true;\r
 118                                         this._rawObject.src               = source;\r
 119                                         //this._rawObject.onclick  = "alert('play');this.play();";\r
 120                                         document.body.appendChild( this._rawObject );\r
 121                                         //this._rawObject.load();\r
 122                                 } else {\r
 123                                         this._rawObject = X_Audio_rawAudio || new X_Audio_constructor( source );// X_Doc_create( 'audio', { src : source } ).appendToRoot();//( X.X_Node_systemNode );\r
 124                                         this._rawObject.autobuffer = false;\r
 125                                         this._src = source;\r
 126                                 };\r
 127                                 \r
 128                                 this.listen( [\r
 129                                                 'loadstart', 'load', 'progress', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'play', 'pause', 'loadedmetadata',\r
 130                                                 'loadeddata', 'waiting', 'playing', 'canplay', 'canplaythrough', 'seeking', 'seeked', 'timeupdate', 'ended',\r
 131                                                 'ratechange', 'durationchange', 'volumechange' ], this.handleEventProxy );                              \r
 132 \r
 133                                 //document.body.appendChild( this._rawObject );\r
 134                                 this._rawObject.autoplay = false;\r
 135 \r
 136                                 if( X_Audio_rawAudio === this._rawObject ){\r
 137                                         if( X_Audio_HTMLAudioWrapper_badOperaAndroid ){\r
 138                                                 X_Audio_HTMLAudioWrapper_badOperaAndroid && alert( 12 );\r
 139                                                 X_EventDispatcher_toggleAllEvents( this, false );\r
 140                                                 this._rawObject = new X_Audio_constructor( X_URL_toAbsolutePath( source ) );\r
 141                                                 //X_EventDispatcher_toggleAllEvents( this, true );\r
 142                                         } else {\r
 143                                                 X_Audio_rawAudio.src = source;\r
 144                                         };\r
 145 \r
 146                                         //this._rawObject = new X_Audio_constructor( X_URL_toAbsolutePath( source ) );\r
 147                                         /*!X_Audio_Sprite_needTouchFirst && */ X_Audio_rawAudio.load(); // 要る?\r
 148                                         X_Audio_rawAudio = null;\r
 149                                 };\r
 150 \r
 151                                 this.listenOnce( X.Event.KILL_INSTANCE );\r
 152                         },\r
 153                         \r
 154                         handleEvent : function( e ){\r
 155                                 switch( e.type ){\r
 156 \r
 157                                         case X.Event.KILL_INSTANCE :\r
 158                                                 break;\r
 159                                 };\r
 160                         },\r
 161                         /*\r
 162                          * http://uguisu.skr.jp/html/table3.html\r
 163                          */\r
 164                         handleEventProxy : function( e ){\r
 165                                 var type, loaded, end, now;\r
 166                                 \r
 167                                 X_Audio_HTMLAudioWrapper_badOperaAndroid && alert( e.type );\r
 168                                 \r
 169                                 console.log( e.type );\r
 170                                 \r
 171                                 switch( e.type ){\r
 172                                         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
 173                                                 break;\r
 174                                         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
 175                                                 console.log( e.loaded + ' ' + e.total * 100 + '%' );\r
 176                                                 // iem9 で常に0 this._rawObject.networkState;\r
 177                                                 // 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
 178                                                 //console.log( 'buffered.end ' + this._rawObject.buffered && this._rawObject.buffered.end(0) ); \r
 179                                                 break;\r
 180                                         \r
 181                                         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
 182                                                 if( X_Audio_HTMLAudioWrapper_durationFix && this._playForDuration === 0 ){\r
 183                                                         //console.log( 'DurationFix開始 - ' + this._rawObject.duration );\r
 184                                                         this._playForDuration = 1;\r
 185                                                         this._rawObject.play();\r
 186                                                         this._rawObject.currentTime = this._beginTime / 1000; // 必要！\r
 187                                                         return;\r
 188                                                 };\r
 189                                         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
 190                                         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
 191                                         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
 192                                                 if( X_Audio_HTMLAudioWrapper_durationFix && this._playForDuration !== 2 ) return;\r
 193                                                 this.duration = this.duration || this._rawObject.duration * 1000;\r
 194                                                 break;\r
 195         \r
 196                                         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
 197                                                 // Android2 で ready 扱い?\r
 198                                         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
 199                                                 // iOS で ready 扱い\r
 200                                         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
 201                                         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
 202                                                 break;\r
 203                                                 \r
 204                                         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
 205                                                 type = X.Event.ERROR;\r
 206                                                 break;\r
 207                                         \r
 208                                         case 'playing' :        //      再生が開始された場合に発生\r
 209                                                 if( X_Audio_HTMLAudioWrapper_currentTimeFix ){\r
 210                                                         this._playTime  = X_Timer_now();\r
 211                                                 };\r
 212                                                 type = X.Event.MEDIA_PLAYING;\r
 213                                         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
 214                                         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
 215                                         case 'seeked' :         //      シークがfalseに変化した場合に発生\r
 216                                         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
 217                                         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
 218                                                 if( this._playForDuration === 1 ) return;\r
 219                                                 break;\r
 220                                                 \r
 221                                         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
 222                                                 type = X.Event.MEDIA_WAITING;\r
 223                                         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
 224                                                 type = type || X.Event.MEDIA_SEEKING;\r
 225                                                 if( this._playForDuration === 1 ) return;\r
 226                                                 break;\r
 227                                                 \r
 228                                         case 'ended' :\r
 229                                                 if( !this._closed && this.loop ){\r
 230                                                         if( !( this.proxy.dispatch( X.Event.MEDIA_BEFORE_LOOP ) & X.Callback.PREVENT_DEFAULT ) ){\r
 231                                                                 this.looped = true;\r
 232                                                                 this.proxy.dispatch( X.Event.MEDIA_LOOPED );\r
 233                                                                 this.play();\r
 234                                                         };\r
 235                                                         return;\r
 236                                                 };\r
 237                                                 type = X.Event.MEDIA_ENDED;\r
 238                                                 this.seekTime = 0;\r
 239                                                 delete this.playing;\r
 240                                                 break;\r
 241         \r
 242                                         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
 243                                                 if( X_Audio_HTMLAudioWrapper_ieMobile9Fix ){\r
 244                                                         if( this._playForDuration === 1 ){\r
 245                                                                 console.log( 'tu ' + this._rawObject.duration );\r
 246                                                                 if( !this.duration && X.Type.isFinite( this._rawObject.duration ) ){\r
 247                                                                         this.duration = this.duration || this._rawObject.duration * 1000;\r
 248                                                                         this._playForDuration = 2;\r
 249                                                                         \r
 250                                                         //this.proxy.asyncDispatch( 'loadedmetadata' );\r
 251                                                         //this.proxy.asyncDispatch( 'loadeddata' );\r
 252                                                         //this.proxy.asyncDispatch( 'canplay' );\r
 253                                                         //this.proxy.asyncDispatch( 'canplaythrough' );\r
 254                                                         loaded = true;\r
 255                                                         //console.log( 'durationFix が完了' + this.duration );\r
 256                                                         break;\r
 257                                                                 } else {\r
 258                                                                         this._rawObject.currentTime = this._beginTime / 1000; // 必要！\r
 259                                                                         return;\r
 260                                                                 };\r
 261                                                         } else\r
 262                                                         if( this._rawObject.currentTime === this._lastCurrentTime ){\r
 263                                                                 //this.proxy.dispatch( 'seeking' );\r
 264                                                                 this.proxy.dispatch( X.Event.MEDIA_WAITING );\r
 265                                                                 return;\r
 266                                                         };\r
 267                                                         this._lastCurrentTime = this._rawObject.currentTime;\r
 268                                                 };\r
 269                                                 this.duration = this.duration || this._rawObject.duration * 1000;\r
 270 \r
 271                                     if( this.playing ){\r
 272                                         end = X_AudioWrapper_getEndTime( this );\r
 273                                         now = X_Audio_HTMLAudioWrapper_currentTimeFix ? X_Timer_now() - this._playTime + this._beginTime : this._rawObject.currentTime * 1000 | 0;\r
 274                                         if( 0 + end <= 0 + now ){ // なぜか iem9 で必要,,,\r
 275                                                 if( this.loop ){\r
 276                                                         if( !( this.proxy.dispatch( X.Event.MEDIA_BEFORE_LOOP ) & X.Callback.PREVENT_DEFAULT ) ){\r
 277                                                                 this.looped = true;\r
 278                                                                 this.proxy.dispatch( X.Event.MEDIA_LOOPED );\r
 279                                                                 this.play();\r
 280                                                         };\r
 281                                                 } else {\r
 282                                                         this.pause();\r
 283                                                         this.proxy.dispatch( X.Event.MEDIA_ENDED );\r
 284                                                 };\r
 285                                                 return;\r
 286                                         };\r
 287                                     } else {\r
 288                                         return;\r
 289                                     };\r
 290                                     type = X.Event.MEDIA_PLAYING;\r
 291                                                 break;\r
 292                                                 \r
 293                                         case 'durationchange' : // duration属性が更新された場合に発生\r
 294                                                 \r
 295                                                 if( !X_Audio_HTMLAudioWrapper_durationFix ){\r
 296                                                         this.duration = this._rawObject.duration * 1000;\r
 297                                                 } else\r
 298                                                 // Desktop Opera では Infinity, IEM9 では NaN\r
 299                                                 if( !this.duration && X.Type.isFinite( this._rawObject.duration ) ){\r
 300                                                         \r
 301                                                         //console.log( this._rawObject.duration );\r
 302                                                         \r
 303                                                         this.duration = this._rawObject.duration * 1000;\r
 304                                                         \r
 305                                                         if( this._playForDuration === 0 ) this._playForDuration = 2;\r
 306                                                         \r
 307                                                         if( this._playForDuration === 1 ){\r
 308                                                                 this._playForDuration = 2;\r
 309                                                                 \r
 310                                                                 console.log( 'Loaded ' + this._loaded );\r
 311                                                                 \r
 312                                                                 if( this._loaded ){\r
 313                                                                         this._rawObject.currentTime = this._beginTime / 1000;\r
 314                                                                         console.log( '設定 ' + this._beginTime );\r
 315                                                                         return;\r
 316                                                                 };\r
 317                                                                 \r
 318                                                                 /*\r
 319                                                 this.proxy.asyncDispatch( 'loadedmetadata' );\r
 320                                                 this.proxy.asyncDispatch( 'loadeddata' );\r
 321                                                 this.proxy.asyncDispatch( 'canplay' );\r
 322                                                 this.proxy.asyncDispatch( 'canplaythrough' ); */\r
 323                                                \r
 324                                                 \r
 325                                                 loaded = true;\r
 326                                                 console.log( 'durationFix が完了' + this.duration );\r
 327                                                 \r
 328                                                 if( this.autoplay ){\r
 329                                                                         this._rawObject.currentTime = this._beginTime / 1000;   \r
 330                                                 } else {\r
 331                                                         // Opera12.17 WinXP で勝手に再生される不具合\r
 332                                                         // これで一応再生は止まる、、、\r
 333                                                                         this._rawObject.src = '';\r
 334                                                                         //this._rawObject.load();                                               \r
 335                                                 };\r
 336                                                         };\r
 337                                                         \r
 338                                                 };\r
 339                                                 break;\r
 340                                         \r
 341                                 };\r
 342                                 \r
 343                                 \r
 344                                 if( !this._loaded && ( loaded || e.type === X_Audio_HTMLAudio_playTrigger || e.type === 'loadeddata' ) ){\r
 345                                         this.autoplay && X.Timer.once( 16, this, this.play );\r
 346                                         this._loaded = true;\r
 347                                         this.proxy.dispatch( X.Event.READY );\r
 348                                         console.log( 'Loaded! ' + e.type + ' d:' + ( this.duration | 0 ) );\r
 349                                         return;\r
 350                                 };\r
 351                                 \r
 352                                 loaded || ( type && this.proxy.dispatch( type ) );\r
 353                         },\r
 354                         \r
 355                         close : function(){\r
 356                                 // 【javascript】モバイル向けブラウザでも音を鳴らしたい【WebAudio】\r
 357                                 // http://ingaouhou.com/archives/3633\r
 358                                 // ・使い終わったインスタンスはload()しておくとやや安定\r
 359                                 this.playing && this.pause();\r
 360                                 delete this._closed;\r
 361                                 delete this._loaded;\r
 362                                 \r
 363                                 this._rawObject.src = '';\r
 364                                 this._rawObject.load();\r
 365                         },\r
 366                         \r
 367                         play : function(){\r
 368                                 var begin, end;\r
 369                                 \r
 370                                 // もし kill 後に autoplayTimer で呼ばれても、_closed==true なので平気\r
 371                                 if( this._closed ) return;\r
 372                                 if( !this._loaded /* && !X_Audio_Sprite_inTouchAction */ ){\r
 373                         this.autoplay = true;\r
 374                         return;\r
 375                                 };\r
 376 \r
 377                                 if( X_Audio_HTMLAudioWrapper_ieMobile9Fix && this._playForDuration === 0 ){\r
 378                                         console.log( 'DurationFix開始 - ' + this._rawObject.duration );\r
 379                                         this._playForDuration = 1;\r
 380                                 };\r
 381 \r
 382                                 end   = X_AudioWrapper_getEndTime( this );\r
 383                                 begin = this._beginTime = X_AudioWrapper_getStartTime( this, end, true );\r
 384 \r
 385                     if( X_Audio_HTMLAudioWrapper_shortPlayFix ){\r
 386                         begin -= end - begin > 1000 ? 200 : 400;\r
 387                         begin  = begin < 0 ? 0 : begin;\r
 388                     };\r
 389 \r
 390                                 if( !this._rawObject.src ){\r
 391                                         this._beginTime = begin;\r
 392                                         this._rawObject.src = this._src;\r
 393                                         delete this._playForDuration;\r
 394                                 };\r
 395 \r
 396                             \r
 397                             if( !this.playing ){\r
 398                                     if( X_UA.Chrome ){ // [CHROME][FIX] volume TODO どの version で 修正される？\r
 399                                         // [!] delay\r
 400                                         X.Timer.once( 0, this, this._fixForChrome );\r
 401                                         this._rawObject.volume = 0;\r
 402                                     } else {\r
 403                                         this._rawObject.volume = this.volume;\r
 404                                     };\r
 405                                 this._rawObject.play();\r
 406                                 this.playing = true;\r
 407                             };\r
 408                                 //http://himaxoff.blog111.fc2.com/blog-entry-97.html\r
 409                                 //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
 410                                 //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
 411                                 this._rawObject.currentTime = this._lastCurrentTime = begin / 1000;\r
 412 \r
 413                             console.log( '[HTMLAudio] play ' + begin + ' -> ' + end );\r
 414                     \r
 415                     if( X_Audio_HTMLAudioWrapper_currentTimeFix ){\r
 416                         this._beginTime = begin;\r
 417                         this._playTime  = X_Timer_now();\r
 418                     };\r
 419 \r
 420                         },\r
 421                                 \r
 422                                 // [CHROME][FIX] volume\r
 423                                 _fixForChrome : X_UA.Chrome && function(){\r
 424                                         !this._closed && ( this._rawObject.volume = this.volume );\r
 425                                 },\r
 426                         \r
 427                         pause : function(){\r
 428                                 if( !this.playing ) return;\r
 429                                 \r
 430                                 this.seekTime = this.state().currentTime;\r
 431 \r
 432                                 delete this._playTime;\r
 433 \r
 434                         !this._rawObject.error && this._rawObject.pause();\r
 435                         \r
 436                         if( X_Audio_HTMLAudioWrapper_durationFix ){\r
 437                                 this._rawObject.src = '';\r
 438                                 // load();\r
 439                         };\r
 440                         delete this.playing;\r
 441                         },\r
 442         \r
 443                         state : function( obj ){\r
 444                                 var result;\r
 445                                 \r
 446                                 if( obj === undefined ){\r
 447                                     return {\r
 448                                         startTime     : this.startTime,\r
 449                                         endTime       : this.endTime < 0 ? this.duration : this.endTime,\r
 450                                         loopStartTime : this.loopStartTime < 0 ? this.startTime : this.loopStartTime,\r
 451                                         loopEndTime   : this.loopEndTime < 0 ? ( this.endTime || this.duration ) : this.loopEndTime,\r
 452                                         \r
 453                                         loop          : this.loop,\r
 454                                         looped        : this.looped,\r
 455                                         volume        : this.volume,\r
 456                                         playing       : this.playing, // && !this._rawObject.error && !this._rawObject.paused && !this._rawObject.ended,                                \r
 457                                         duration      : this.duration,\r
 458                                         \r
 459                                         currentTime   :\r
 460                                                 this.playing ?\r
 461                                                         ( X_Audio_HTMLAudioWrapper_currentTimeFix ?\r
 462                                                                 X_Timer_now() - this._playTime + this._beginTime :\r
 463                                                                 this._rawObject.currentTime * 1000 | 0 ) :\r
 464                                                         this.seekTime,\r
 465                                         /*\r
 466         http://www.w3schools.com/tags/av_prop_error.asp\r
 467         1 = MEDIA_ERR_ABORTED - fetching process aborted by user\r
 468     2 = MEDIA_ERR_NETWORK - error occurred when downloading\r
 469     3 = MEDIA_ERR_DECODE - error occurred when decoding\r
 470     4 = MEDIA_ERR_SRC_NOT_SUPPORTED - audio/video not supported\r
 471     */\r
 472                                         error         : this._rawObject.error || 0   // 0, 1 ~ 4 \r
 473                                     };                                  \r
 474                                 };\r
 475                         \r
 476                                 result = X_AudioWrapper_updateStates( this, obj );\r
 477                             \r
 478                                 if( result & 2 ){ // seek\r
 479                         this.play();\r
 480                                 //} else\r
 481                                 //if( result & 1 ){\r
 482                                         //if( X_Audio_HTMLAudioWrapper_currentTimeFix ){\r
 483                                         //      this.play();                                            \r
 484                                         //};\r
 485 \r
 486                                 } else\r
 487                                 if( result & 4 ){\r
 488                        this._rawObject.volume = this.volume;\r
 489                                 };\r
 490                             \r
 491                         }\r
 492         \r
 493                 }\r
 494         );\r
 495         \r
 496         X_Audio_BACKENDS.push(\r
 497                 {\r
 498                         backendName : 'HTML Audio',\r
 499                 /*\r
 500                  * 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
 501                  * https://developer.mozilla.org/ja/docs/Web/HTML/Supported_media_formats\r
 502                  * \r
 503                  * 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
 504                  * http://sothis.blog.so-net.ne.jp/2010-10-27\r
 505                  * 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
 506                  * \r
 507                  * IE9 の HTML5 Audio について\r
 508                  * http://kentablog.cluscore.com/2011/05/ie9-html5-audio.html\r
 509                  * 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
 510                  * 2.クロスドメインアクセスには、「clientaccesspolicy.xml」か「crossdomain.xml」が必要\r
 511                  * 3.wav が不可\r
 512                  * \r
 513                  * IE9でHTML5 autio タグが無効になる\r
 514                  * http://bbs.wankuma.com/index.cgi?mode=al2&namber=64886&KLOG=109\r
 515                  *  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
 516                  *  createElement等で動的生成すると、よろしくない\r
 517                  * \r
 518                  * media-can-play-wav-audio.html\r
 519                  * https://github.com/adobe/webkit/blob/master/LayoutTests/media/media-can-play-wav-audio.html\r
 520                  * testExpected("audio.canPlayType('audio/wav; codecs=1')", "probably");\r
 521                  * \r
 522                  * HTML5 audioタグ ブラウザ間の違い\r
 523                  * 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
 524                  *  - volume, muted iPhone(iOS4-6)、Android(2.3.6)では動作せず。\r
 525                  *  - 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
 526                  */     \r
 527                         detect : function( proxy, source, ext ){\r
 528                                 /*\r
 529                                 var ok, mineType = 'audio/' + ext;\r
 530                                 switch( ext ){\r
 531                                         case 'mp3' :\r
 532                                                 ok = X_UA.IE || X_UA.Chrome || ( X_UA.Windows && X_UA.Safari );\r
 533                                                 mineType = 'audio/mpeg';\r
 534                                                 //if( X_UA.Android && X_UA.Gecko ) mineType = '';\r
 535                                                 break;\r
 536                                         case 'ogg' :\r
 537                                                 ok = 15 <= X_UA.Gecko || X_UA.Chrome || X_UA.Opera;\r
 538                                                 if( X_UA.AndroidBrowser ) mineType = '';\r
 539                                                 break;\r
 540                                         case 'm4a' :\r
 541                                                 ok = X_UA.IE || X_UA.WebKit;\r
 542                                                 mineType = 'audio/mp4';\r
 543                                                 break;\r
 544                                         case 'webm' :\r
 545                                                 ok = 2 <= X_UA.Gecko || 10.6 <= X_UA.Opera; // firefox4+(Gecko2+)\r
 546                                                 break;\r
 547                                         case 'wav' :\r
 548                                                 ok = X_UA.Gecko || X_UA.Opera || ( X_UA.Windows && X_UA.Safari );\r
 549                                                 //mineType = 'audio/wav'; // audio/x-wav ?\r
 550                                                 break;\r
 551                                         default :\r
 552                                                 mineType = '';\r
 553                                 };\r
 554                                 \r
 555                                 if( !ok && mineType ){\r
 556                                         if( !X_Audio_rawAudio ) X_Audio_rawAudio = new Audio;\r
 557                                         ok = X_Audio_rawAudio.canPlayType( mineType );\r
 558                                         //console.log( 'HTML Audio ' + ok + ' ext:' + ext );\r
 559                                 };\r
 560                                 console.log( 'HTML Audio ' + ok + ' ext:' + ext );\r
 561                                 proxy.asyncDispatch( ok ? X_Audio_CAN_PLAY : X_Audio_NOT_PLAY ); */\r
 562                                 \r
 563                                 proxy.asyncDispatch( X_Audio_codecs[ ext ] ? X_Audio_CAN_PLAY : X_Audio_NOT_PLAY );\r
 564                         },\r
 565                         \r
 566                         klass : X_Audio_HTMLAudioWrapper\r
 567                         \r
 568                 } );\r
 569 \r
 570 /*\r
 571  * \r
 572  * howler.js\r
 573  *     codecs = {\r
 574       mp3: !!audioTest.canPlayType('audio/mpeg;').replace(/^no$/, ''),\r
 575       opus: !!audioTest.canPlayType('audio/ogg; codecs="opus"').replace(/^no$/, ''),\r
 576       ogg: !!audioTest.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/, ''),\r
 577       wav: !!audioTest.canPlayType('audio/wav; codecs="1"').replace(/^no$/, ''),\r
 578       aac: !!audioTest.canPlayType('audio/aac;').replace(/^no$/, ''),\r
 579       m4a: !!(audioTest.canPlayType('audio/x-m4a;') || audioTest.canPlayType('audio/m4a;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, ''),\r
 580       mp4: !!(audioTest.canPlayType('audio/x-mp4;') || audioTest.canPlayType('audio/mp4;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, ''),\r
 581       weba: !!audioTest.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/, '')\r
 582     };\r
 583  */\r
 584         \r
 585 };\r
 586 \r
 587 \r
 588 \r
 589 \r
 590 \r