0.6.x/js/07_audio/00_XAudio.js

   1 \r
   2 /*\r
   3         WebAudio    : 1,\r
   4         HTMLAudio   : 2,\r
   5         Flash       : 3,\r
   6         Silverlight : 4,\r
   7         Unity       : 5,\r
   8         WMP         : 6,\r
   9         RealPlayer  : 7,\r
  10         QuickTime   : 8,\r
  11  */\r
  12 \r
  13 var X_Audio_BACKENDS     = []; // Array.<Hash>\r
  14 \r
  15 X_TEMP.onSystemReady.push(\r
  16         function(){\r
  17                 var canPlay = X[ 'Audio' ][ 'canPlay' ] = {},\r
  18                         i = X_Audio_BACKENDS.length,\r
  19                         be;\r
  20                 for( ; i; ){\r
  21                         be = X_Audio_BACKENDS[ --i ];\r
  22                         X_Object_override( canPlay, be.canPlay );\r
  23                         X[ 'Audio' ][ be.backendName ] = be.backendID;\r
  24                 };\r
  25         });\r
  26 \r
  27 /**\r
  28  * <p>複数のオーディオ・バックエンドから、与えられた音声を再生可能なものを見つけ、音声を再生します。\r
  29  * <p>HTMLAudio の動作・機能がブラウザ毎にバラバラなのに業を煮やし、メソッドやイベントは独自に定義しています。\r
  30  * <h4>バックエンドの種類</h4>\r
  31  * <p>HTMLAudio, WebAudio, Silverlight, WMP\r
  32  * <h4>イベント</h4>\r
  33  * <dl>\r
  34  * <dt>X.Event.BACKEND_READY   <dd>音声(src リスト)を再生可能なバックエンドが見つかった。\r
  35  * <dt>X.Event.BACKEND_NONE    <dd>音声を再生可能なバックエンドが見つからなかった。Audio は kill されます。\r
  36  * <dt>X.Event.MEDIA_CAN_TOUCH <dd>モバイル端末の制約で音声の再生またはロードに、タッチを必要とする場合、タッチイベント内で play を呼び出す準備が出来たことを通知する。\r
  37  * <dt>X.Event.READY           <dd>再生可能、実際の状態は canplay から loadeddata まで様々、、、\r
  38  * <dt>X.Event.ERROR           <dd><ul>\r
  39  *   <li> 1 : ユーザーによってメディアの取得が中断された\r
  40  *   <li> 2 : ネットワークエラー\r
  41  *   <li> 3 : メディアのデコードエラー\r
  42  *   <li> 4 : メディアがサポートされていない\r
  43  * </ul>\r
  44  * <dt>X.Event.MEDIA_PLAYING   <dd>再生中に1秒以下のタイミングで発生．currentTime が取れる?\r
  45  * <dt>X.Event.MEDIA_LOOP      <dd>ループ直前に発生、ｷｬﾝｾﾙ可能\r
  46  * <dt>X.Event.MEDIA_LOOPED    <dd>ループ時に発生\r
  47  * <dt>X.Event.MEDIA_ENDED     <dd>再生位置の(音声の)最後についた\r
  48  * <dt>X.Event.MEDIA_PAUSED    <dd>ポーズした\r
  49  * <dt>X.Event.MEDIA_WAITING   <dd>再生中に音声が待機状態に。\r
  50  * <dt>X.Event.MEDIA_SEEKING   <dd>シーク中に音声が待機状態に。\r
  51  * </dl>\r
  52  * \r
  53  * @alias X.Audio\r
  54  * @class 各種オーディオ機能をラップしインターフェイスを共通化する。\r
  55  * @constructs Audio\r
  56  * @extends {EventDispatcher}\r
  57  * @param {array|string} sourceList\r
  58  * @param {object=} opt_option\r
  59  * @example //\r
  60  * var audio = X.Audio( [ 'etc/special.mp3', 'etc/special.ogg', 'etc/special.wav' ] ).listenOnce( X.Event.READY, onReady );\r
  61  */\r
  62 X[ 'Audio' ] = X_EventDispatcher[ 'inherits' ](\r
  63         'X.Audio',\r
  64         X_Class.NONE,\r
  65         {\r
  66                 /**\r
  67                  * 音声の url。X.Event.BACKEND_READY で設定される。\r
  68                  * @alias Audio.prototype.source\r
  69                  * @type {string}\r
  70                  */\r
  71                 'source'      : '',\r
  72                 \r
  73                 /**\r
  74                  * 音声再生バックエンドの名前。X.Event.BACKEND_READY で設定される。\r
  75                  * @alias Audio.prototype.backendName\r
  76                  * @type {string}\r
  77                  */\r
  78                 'backendName' : '',\r
  79 \r
  80                 'Constructor' : function( sourceList, opt_option ){\r
  81                         X_Audio_startDetectionBackend(\r
  82                                 X_Audio_BACKENDS[ 0 ], this,\r
  83                                 X_Type_isArray( sourceList ) ? X_Array_copy( sourceList ) : [ sourceList ],\r
  84                                 opt_option || {} );\r
  85                         this[ 'listenOnce' ]( [ X_EVENT_BACKEND_READY, X_EVENT_BACKEND_NONE, X_EVENT_KILL_INSTANCE ], X_Audio_handleEvent );\r
  86                         X_ViewPort[ 'listenOnce' ]( X_EVENT_UNLOAD, this, X_AudioSprite_handleEvent );\r
  87                 },\r
  88                 \r
  89                 /**\r
  90                  * 再生。開始位置・終了位置、ループの有無、ループ以降の開始位置、ループ以降の終了位置\r
  91                  * @alias Audio.prototype.play\r
  92                  * @param {number=} startTime 開始時間を ms で\r
  93                  * @param {number=} endTime 終了時間を ms で\r
  94                  * @param {boolean=} loop endTimeに達した際に曲をループさせるか\r
  95                  * @param {number=} loopStartTime ループ以後の開始時間を ms で\r
  96                  * @param {number=} loopEndTime ループ以後の終了時間を ms で\r
  97                  * @return {Audio} メソッドチェーン\r
  98                  */\r
  99                 'play' : function( startTime, endTime, loop, loopStartTime, loopEndTime ){\r
 100                         var pair = X_Pair_get( this );\r
 101                         pair && pair.play( startTime, endTime, loop, loopStartTime, loopEndTime );\r
 102                         return this;\r
 103                 },\r
 104                 /**\r
 105                  * シーク、再生中で無い場合は次回再生開始位置の指定のみ\r
 106                  * @alias Audio.prototype.seek\r
 107                  * @param {number} seekTime シーク位置を ms で\r
 108                  * @return {Audio} メソッドチェーン\r
 109                  */\r
 110                 'seek' : function( seekTime ){\r
 111                         var pair = X_Pair_get( this );\r
 112                         pair && pair.seek( seekTime );\r
 113                         return this;\r
 114                 },\r
 115                 /**\r
 116                  * ポーズ\r
 117                  * @alias Audio.prototype.pause\r
 118                  * @return {Audio} メソッドチェーン\r
 119                  */\r
 120                 'pause' : function(){\r
 121                         var pair = X_Pair_get( this );\r
 122                         pair && pair.pause();\r
 123                         return this;\r
 124                 },\r
 125                 /**\r
 126                  * 状態の getter と setter\r
 127                  * @alias Audio.prototype.state\r
 128                  * @param {object=} obj setter の場合、上書きする値を格納したobject\r
 129                  * @return {Audio|object}\r
 130                  * @example\r
 131 audio.setState(\r
 132  {\r
 133         'startTime'     : 0,\r
 134         'endTime'       : 80000,\r
 135         'loopStartTime' : 120000,\r
 136         'loopEndTime'   : 200000,\r
 137         'currentTime'   : 0,\r
 138     'loop'          : true,\r
 139     'looded'        : false,\r
 140     'volume'        : 1,\r
 141     'autoplay'      : true\r
 142 });\r
 143                  */\r
 144                 'state' : function( obj ){\r
 145                         var pair = X_Pair_get( this );\r
 146                         if( obj === undefined ){\r
 147                                 return pair ? pair.getState() :\r
 148                                         {\r
 149                                         'startTime'     : -1,\r
 150                                         'endTime'       : -1,\r
 151                                         'loopStartTime' : -1,\r
 152                                         'loopEndTime'   : -1,\r
 153                                         'currentTime'   : -1,\r
 154                                         'loop'          : false,\r
 155                                         'looded'        : false,\r
 156                                         'error'         : 0,\r
 157                                         'autoplay'      : false,\r
 158                                         'playing'       : false,\r
 159                                         'source'        : this[ 'source' ],\r
 160                                         'duration'      : 0,\r
 161                                         'volume'        : 0.5\r
 162                                         };\r
 163                         };\r
 164                         pair && pair.setState( obj );\r
 165                         return this;\r
 166                 },              \r
 167                 /**\r
 168                  * ループの setter\r
 169                  * @alias Audio.prototype.loop\r
 170                  * @param {boolean} v \r
 171                  * @return {Audio}\r
 172                  */\r
 173                 'loop' : function( v ){\r
 174                         var pair = X_Pair_get( this );\r
 175                         pair && pair.loop( v );\r
 176                         return this;\r
 177                 },\r
 178                 /**\r
 179                  * ボリュームの setter 実装不十分！\r
 180                  * @alias Audio.prototype.volume\r
 181                  * @param {number} v 0～1\r
 182                  * @return {Audio}\r
 183                  */\r
 184                 'volume' : function( v ){\r
 185                         var pair = X_Pair_get( this );\r
 186                         pair && pair.volume( v );\r
 187                         return this;\r
 188                 },\r
 189                 /**\r
 190                  * 再生位置のsetter。\r
 191                  * @alias Audio.prototype.currentTime\r
 192                  * @param {number} v msで\r
 193                  * @return {Audio}\r
 194                  */\r
 195                 'currentTime' : function( v ){\r
 196                         var pair = X_Pair_get( this );\r
 197                         pair && pair.currentTime( v );\r
 198                         return this;\r
 199                 },\r
 200                 /**\r
 201                  * 再生中か？\r
 202                  * @alias Audio.prototype.isPlaying\r
 203                  * @return {boolean}\r
 204                  */\r
 205                 'isPlaying' : function(){\r
 206                         var pair = X_Pair_get( this );\r
 207                         return pair && pair.playing;\r
 208                 }\r
 209                 \r
 210         }\r
 211 );\r
 212 \r
 213 function X_Audio_handleEvent( e ){\r
 214         var backend, pair;\r
 215         \r
 216         switch( e.type ){\r
 217                 case X_EVENT_BACKEND_READY :\r
 218                         backend = X_Audio_BACKENDS[ e[ 'backendID' ] ];\r
 219                 \r
 220                         this[ 'unlisten' ]( X_EVENT_BACKEND_NONE, X_Audio_handleEvent );\r
 221                         this[ 'source' ]      = e[ 'source' ];\r
 222                         this[ 'backendName' ] = backend.backendName;\r
 223                         \r
 224                         X_Pair_create( this, backend.klass( this, e[ 'source' ], e[ 'option' ] ) );\r
 225                         this[ 'listenOnce' ]( X_EVENT_READY, X_Audio_handleEvent );\r
 226                         break;\r
 227                 \r
 228                 case X_EVENT_READY :\r
 229                         pair = X_Pair_get( this );\r
 230                         ( pair.autoplay || pair._playReserved ) && pair.actualPlay();\r
 231                         delete pair._playReserved;\r
 232                         break;\r
 233                 \r
 234                 case X_EVENT_BACKEND_NONE :\r
 235                 case X_EVENT_UNLOAD :\r
 236                         this[ 'kill' ]();\r
 237                         break;\r
 238                 \r
 239                 case X_EVENT_KILL_INSTANCE :\r
 240                         X_ViewPort[ 'unlisten' ]( X_EVENT_UNLOAD, this, X_AudioSprite_handleEvent );\r
 241                         if( backend = X_Pair_get( this ) ){\r
 242                                 backend[ 'kill' ]();\r
 243                                 X_Pair_release( this, backend );\r
 244                         };\r
 245                         break;\r
 246         };\r
 247 };\r
 248 \r
 249 \r
 250 /*\r
 251  * TODO preplayerror play してみたら error が出た、backend の変更。\r
 252  */\r
 253 \r
 254 function X_Audio_startDetectionBackend( backend, xaudio, sourceList, option ){\r
 255         var source = sourceList[ 0 ] || '', \r
 256                 ext    = X_URL_getEXT( source ),\r
 257                 sup;\r
 258         \r
 259         if( source && backend ){\r
 260                 sup      = [ xaudio, sourceList, option, source, ext ];\r
 261                 sup[ 5 ] = sup;\r
 262                 \r
 263                 xaudio[ 'listenOnce' ]( X_EVENT_COMPLETE, backend, X_Audio_onEndedDetection, sup );\r
 264                 backend.detect( xaudio, source, ext );\r
 265         } else {\r
 266                 xaudio[ 'asyncDispatch' ]( X_EVENT_BACKEND_NONE );\r
 267         };\r
 268 };\r
 269 \r
 270 function X_Audio_onEndedDetection( e, xaudio, sourceList, option, source, ext, sup ){\r
 271         var i = X_Audio_BACKENDS.indexOf( this ), backend;\r
 272         \r
 273         if( e.canPlay ){\r
 274                 xaudio[ 'asyncDispatch' ]( {\r
 275                         type          : X_EVENT_BACKEND_READY,\r
 276                         'option'      : option,\r
 277                         'source'      : source,\r
 278                         'backendName' : this[ 'backendName' ],\r
 279                         'backendID'   : i\r
 280                 } );                    \r
 281         } else {\r
 282                 console.log( 'No ' + source + ' ' + this[ 'backendName' ] );\r
 283                 if( sup[ 3 ] = source = sourceList[ sourceList.indexOf( source ) + 1 ] ){\r
 284                         sup[ 4 ] = ext    = X_URL_getEXT( source );\r
 285                         xaudio[ 'listenOnce' ]( X_EVENT_COMPLETE, this, X_Audio_onEndedDetection, sup );\r
 286                         this.detect( xaudio, source, ext );\r
 287                 } else\r
 288                 if( backend = X_Audio_BACKENDS[ i + 1 ] ){\r
 289                         X_Audio_startDetectionBackend( backend, xaudio, sourceList, option );\r
 290                 } else {\r
 291                         xaudio[ 'asyncDispatch' ]( X_EVENT_BACKEND_NONE );\r
 292                 };                              \r
 293         };\r
 294 };\r
 295 \r
 296 \r
 297 \r
 298 var X_AudioBase = X_EventDispatcher[ 'inherits' ](\r
 299         'X.AudioBase',\r
 300         X_Class.ABSTRACT,\r
 301         {\r
 302                 disatcher     : null,\r
 303                 \r
 304                 startTime     : 0,    // state_startTime\r
 305                 endTime       : -1,   // state_startTime\r
 306                 loopStartTime : -1,\r
 307                 loopEndTime   : -1,\r
 308                 seekTime      : -1,\r
 309                 duration      : 0,    //\r
 310 \r
 311                 playing       : false,\r
 312                 error         : 0,    //                \r
 313                 autoLoop      : false,\r
 314                 looped        : false,\r
 315                 autoplay      : false,//\r
 316                 gain          : 0.5,\r
 317                 \r
 318                 _playReserved : false,\r
 319                 \r
 320                 play : function( startTime, endTime, loop, loopStartTime, loopEndTime ){\r
 321                         if( 0 <= startTime ){\r
 322                                 this.setState( {\r
 323                                         'currentTime'   : startTime,\r
 324                                         'startTime'     : startTime,\r
 325                                         'endTime'       : endTime,\r
 326                                         'loop'          : loop,\r
 327                                         'looped'        : false,\r
 328                                         'loopStartTime' : loopStartTime,\r
 329                                         'loopEndTime'   : loopEndTime\r
 330                                 } );\r
 331                         };\r
 332                         // canPlay() : autoplay = true\r
 333                         this.actualPlay();\r
 334                 },\r
 335                 \r
 336                 seek : function( seekTime ){\r
 337                         if( seekTime < X_Audio_getEndTime( this ) ){\r
 338                                 this.setState( { 'currentTime' : seekTime } );\r
 339                         };\r
 340                 },\r
 341                 \r
 342                 pause : function(){\r
 343                         this.seekTime = this.getActualCurrentTime();\r
 344                         this.playing && this.actualPause();\r
 345                         // delete this.autoplay\r
 346                         // delete this.playing\r
 347                 },              \r
 348                 \r
 349                 loop : function( v ){\r
 350                         if( v === undefined ){\r
 351                                 return this.autoLoop;\r
 352                         };\r
 353                         this.setState( { 'loop' : v } );\r
 354                 },\r
 355 \r
 356                 volume : function( v ){\r
 357                         if( v === undefined ){\r
 358                                 return this.gain;\r
 359                         };\r
 360                         this.setState( { 'volume' : v } );\r
 361                 },\r
 362 \r
 363                 currentTime : function( v ){\r
 364                         if( v === undefined ){\r
 365                                 return this.playing ? this.getActualCurrentTime() : this.seekTime;\r
 366                         };\r
 367                         this.setState( { 'currentTime' : v } );\r
 368                 },\r
 369                 \r
 370                 getState : function(){\r
 371                         \r
 372                     return {\r
 373                         'startTime'     : this.startTime,\r
 374                         'endTime'       : this.endTime < 0 ? this.duration : this.endTime,\r
 375                         'loopStartTime' : this.loopStartTime < 0 ? this.startTime : this.loopStartTime,\r
 376                         'loopEndTime'   : this.loopEndTime < 0 ? ( this.endTime || this.duration ) : this.loopEndTime,\r
 377                         'loop'          : this.autoLoop,\r
 378                         'looped'        : this.looped,\r
 379                         'volume'        : this.gain,\r
 380                         'playing'       : this.playing,                         \r
 381                         'duration'      : this.duration,\r
 382                         'autoplay'      : this.autoplay,\r
 383                         \r
 384                         'currentTime'  : this.playing ? this.getActualCurrentTime() : this.seekTime,\r
 385                         'error'        : this.getActualError ? this.getActualError() : this.error\r
 386                     };\r
 387                 },\r
 388                 \r
 389                 setState : function( obj ){\r
 390                         var playing = this.playing,\r
 391                                 k, v,\r
 392                                 end = 0, seek = 0, volume = 0;\r
 393                         \r
 394                         for( k in obj ){\r
 395                                 v = obj[ k ];\r
 396                                 switch( k ){\r
 397                                         case 'currentTime'   :\r
 398                                                 v = X_Audio_timeStringToNumber( v );\r
 399                                                 if( X_Type_isNumber( v ) ){\r
 400                                                         if( playing ){\r
 401                                                                 if( this.getActualCurrentTime() !== v ){\r
 402                                                                         seek = 2;\r
 403                                                                         this.seekTime = v;\r
 404                                                                 };                                                              \r
 405                                                         } else {\r
 406                                                                 this.seekTime = v;\r
 407                                                         };\r
 408                                                 } else {\r
 409                                                         continue;\r
 410                                                 };\r
 411                                                 break;\r
 412                                                         \r
 413                                         case 'startTime'     :\r
 414                                                 v = X_Audio_timeStringToNumber( v );\r
 415                                                 if( v || v === 0 ){\r
 416                                                         if( this.startTime !== v ){\r
 417                                                                 this.startTime = v;                                     \r
 418                                                         };\r
 419                                                 } else {\r
 420                                                         delete this.startTime;\r
 421                                                 };\r
 422                                                 break;\r
 423                                         \r
 424                                         case 'endTime'       :\r
 425                                                 v = X_Audio_timeStringToNumber( v );\r
 426                                                 if( v || v === 0 ){\r
 427                                                         if( this.endTime !== v ){\r
 428                                                                 this.endTime = v;\r
 429                                                                 if( playing ) end = 1;                                          \r
 430                                                         };\r
 431                                                 } else {\r
 432                                                         delete this.endTime;\r
 433                                                         if( playing ) end = 1;\r
 434                                                 };\r
 435                                                 break;\r
 436                                                 \r
 437                                         case 'loopStartTime' :\r
 438                                                 v = X_Audio_timeStringToNumber( v );\r
 439                                                 if( v || v === 0 ){\r
 440                                                         if( this.loopStartTime !== v ){\r
 441                                                                 this.loopStartTime = v;                                 \r
 442                                                         };\r
 443                                                 } else {\r
 444                                                         delete this.loopStartTime;\r
 445                                                 };\r
 446                                                 break;\r
 447                                                 \r
 448                                         case 'loopEndTime'   :\r
 449                                                 v = X_Audio_timeStringToNumber( v );\r
 450                                                 if( v || v === 0 ){\r
 451                                                         if( this.loopEndTime !== v ){\r
 452                                                                 this.loopEndTime = v;\r
 453                                                                 if( playing ) end = 1;                                          \r
 454                                                         };\r
 455                                                 } else {\r
 456                                                         delete this.loopEndTime;\r
 457                                                         if( playing ) end = 1;\r
 458                                                 };\r
 459                                                 break;\r
 460                 \r
 461                                         case 'looped' :\r
 462                                                 if( X_Type_isBoolean( v ) && this.looped !== v ){\r
 463                                                         this.looped = v;\r
 464                                                         if( playing ) seek = 2;\r
 465                                                 };\r
 466                                                 break;\r
 467                                                 \r
 468                                         case 'loop' :\r
 469                                                 if( X_Type_isBoolean( v ) && this.autoLoop !== v ){\r
 470                                                         this.autoLoop = v;\r
 471                                                 };\r
 472                                                 break;\r
 473                                                 \r
 474                                         case 'autoplay' :\r
 475                                                 if( X_Type_isBoolean( v ) && this.autoplay !== v ){\r
 476                                                         this.autoplay = v;\r
 477                                                 };\r
 478                                                 break;\r
 479                 \r
 480                                         case 'volume' :\r
 481                                                 if( X_Type_isNumber( v ) ){\r
 482                                                         v = v < 0 ? 0 : 1 < v ? 1 : v;\r
 483                                                         if( this.gain !== v ){\r
 484                                                                 this.gain = v;\r
 485                                                                 // if playing -> update\r
 486                                                                 if( playing ) volume = 4;\r
 487                                                         };\r
 488                                                 };\r
 489                                                 break;\r
 490                                         case 'useVideo' :\r
 491                                                 break;\r
 492                                         default :\r
 493                                                 alert( 'bad arg! ' + k );\r
 494                                 };\r
 495                         };\r
 496                         \r
 497                         if( this.endTime < this.startTime ||\r
 498                                 ( this.loopEndTime < 0 ? this.endTime : this.loopEndTime ) < ( this.loopStartTime < 0 ? this.startTime : this.loopStartTime ) ||\r
 499                                 X_Audio_getEndTime( this ) < this.seekTime// ||\r
 500                                 //this.duration < this.endTime\r
 501                         ){\r
 502                                 console.log( 'setState 0:' + this.startTime + ' -> ' + this.endTime + ' looped:' + this.looped + ' 1:' + this.loopStartTime + ' -> ' + this.loopEndTime );\r
 503                                 return;\r
 504                         };\r
 505                         \r
 506                         v = end + seek + volume;\r
 507                         return v && this.playing && this.afterUpdateState( v );\r
 508                 }\r
 509                 \r
 510         }\r
 511 );\r
 512 \r
 513 \r
 514 function X_Audio_timeStringToNumber( time ){\r
 515         var ary, ms, s = 0, m = 0, h = 0;\r
 516 \r
 517         if( X_Type_isNumber( time ) ) return time;\r
 518         if( !X_Type_isString( time ) || !time.length ) return;\r
 519 \r
 520         ary = time.split( '.' );\r
 521         ms  = parseFloat( ( ary[ 1 ] + '000' ).substr( 0, 3 ) ) || 0;\r
 522         \r
 523         ary = ary[ 0 ].split( ':' );\r
 524         if( 3 < ary.length ) return;\r
 525         \r
 526         switch( ary.length ){\r
 527                 case 0 :\r
 528                         break;\r
 529                 case 1 :\r
 530                         s = parseFloat( ary[ 0 ] ) || 0;\r
 531                         break;\r
 532                 case 2 :\r
 533                         m = parseFloat( ary[ 0 ] ) || 0;\r
 534                         s = parseFloat( ary[ 1 ] ) || 0;\r
 535                         if( 60 <= s ) alert( 'invalid time string ' + time );\r
 536                         break;\r
 537                 case 3 :\r
 538                         h = parseFloat( ary[ 0 ] ) || 0;\r
 539                         m = parseFloat( ary[ 1 ] ) || 0;\r
 540                         s = parseFloat( ary[ 2 ] ) || 0;\r
 541                         if( 60 <= s ) alert( 'invalid time string ' + time );\r
 542                         if( 60 <= m ) alert( 'invalid time string ' + time );\r
 543                         break;\r
 544                 default :\r
 545                         alert( 'invalid time string ' + time );\r
 546         };\r
 547         ms = ( h * 3600 + m * 60 + s ) * 1000 + ms;\r
 548         return ms < 0 ? 0 : ms;\r
 549 };\r
 550 \r
 551 function X_Audio_getStartTime( audioBase, endTime, delSeekTime ){\r
 552         var seek = audioBase.seekTime;\r
 553         \r
 554         if( delSeekTime ) delete audioBase.seekTime;\r
 555         \r
 556         if( 0 <= seek ){\r
 557                 if( audioBase.duration <= seek || endTime < seek ) return 0;\r
 558                 return seek;\r
 559         };\r
 560         \r
 561         if( audioBase.looped && 0 <= audioBase.loopStartTime ){\r
 562                 if( audioBase.duration <= audioBase.loopStartTime || endTime < audioBase.loopStartTime ) return 0;\r
 563                 return audioBase.loopStartTime;\r
 564         };\r
 565         \r
 566         if( audioBase.startTime < 0 || audioBase.duration <= audioBase.startTime ) return 0;\r
 567         return audioBase.startTime;\r
 568 };\r
 569 \r
 570 function X_Audio_getEndTime( audioBase ){\r
 571         var duration = audioBase.duration;\r
 572         \r
 573         if( audioBase.looped && 0 <= audioBase.loopEndTime ){\r
 574                 if( duration <= audioBase.loopEndTime ) return duration;\r
 575                 return audioBase.loopEndTime;\r
 576         };\r
 577         \r
 578         if( audioBase.endTime < 0 || duration <= audioBase.endTime ) return duration;\r
 579         return audioBase.endTime;\r
 580 };\r
 581 \r