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                 X_UA.iOS ? 'suspend' :\r
   9                 X_UA.AndroidBrowser2 ? 'loadeddata' : //'stalled' : Android 2.3.5(SBM101SH) では stalled は発生しない,,,\r
  10                 X_UA.AndroidBrowser4 ? 'loadeddata' : 'canplay',\r
  11         X_Audio_HTML5AudioWrapper,\r
  12         X_Audio_rawAudio;\r
  13         \r
  14 console.log( 'Event ' + X_Audio_HTMLAudio_playTrigger );\r
  15 \r
  16 if( window.HTMLAudioElement ){\r
  17         \r
  18         X_Audio_HTML5AudioWrapper = X.EventDispatcher.inherits(\r
  19                 'X.AV.HTML5AudioWrapper',\r
  20                 X.Class.POOL_OBJECT,\r
  21                 {\r
  22                         \r
  23                         proxy           : null,\r
  24                         \r
  25                         startTime       : 0,\r
  26                         endTime         : -1,\r
  27                         loopStartTime   : -1,\r
  28                         loopEndTime     : -1,\r
  29                         seekTime        : -1,\r
  30                         duration        : 0,\r
  31                         \r
  32                         playing         : false,\r
  33                         error           : 0,                    \r
  34                         loop            : false,\r
  35                         looped          : false,\r
  36                         autoplay        : false,\r
  37                         volume          : 0.5,\r
  38 \r
  39             _timerID        : 0,\r
  40                         \r
  41                         _closed         : true,\r
  42                         _loaded         : false,\r
  43                         \r
  44                         Constructor : function( proxy, source, option ){\r
  45                                 this.proxy   = proxy;\r
  46                                 this._closed = false;\r
  47                                 \r
  48                                 X_AudioWrapper_updateStates( this, option );\r
  49                                 \r
  50                                 // TODO use video document.createElement('video')\r
  51                                 this._rawObject = X_Audio_rawAudio || new Audio( source );// X_Doc_create( 'audio', { src : source } ).appendToRoot();//( X.X_Node_systemNode );\r
  52                                 \r
  53                                 this.listen( [\r
  54                                                 'loadstart', 'load', 'progress', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'play', 'pause', 'loadedmetadata',\r
  55                                                 'loadeddata', 'waiting', 'playing', 'canplay', 'canplaythrough', 'seeking', 'seeked', 'timeupdate', 'ended',\r
  56                                                 'ratechange', 'durationchange', 'volumechange' ], this.handleEventProxy );                              \r
  57                                 \r
  58                                 if( X_Audio_rawAudio === this._rawObject ){\r
  59                                         X_Audio_rawAudio.src = source;\r
  60                                         /*!X_Audio_Sprite_needTouchFirst && */ X_Audio_rawAudio.load(); // 要る?\r
  61                                         X_Audio_rawAudio = null;\r
  62                                 };\r
  63 \r
  64                                 //document.body.appendChild( this._rawObject );\r
  65 \r
  66                                 this._rawObject.autoplay = false;\r
  67                                 \r
  68                                 this.listenOnce( X.Event.KILL_INSTANCE );\r
  69                         },\r
  70                         \r
  71                         handleEvent : function( e ){\r
  72                                 switch( e.type ){\r
  73 \r
  74                                         case X.Event.KILL_INSTANCE :\r
  75                                                 break;\r
  76                                 };\r
  77                         },\r
  78                         /*\r
  79                          * http://uguisu.skr.jp/html/table3.html\r
  80                          */\r
  81                         handleEventProxy : function( e ){\r
  82                                 console.log( 'HTMLAudio ' + e.type );\r
  83                                 \r
  84                                 switch( e.type ){\r
  85                                         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
  86                                                 break;\r
  87                                         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
  88                                                 //console.log( e.loaded + ' ' + e.total * 100 + '%' );\r
  89                                                 this._rawObject.duration &&\r
  90                                                         console.dir( this._rawObject );\r
  91                                                         //console.log( this._rawObject.buffered.end(0) / this._rawObject.duration * 100 + '%' );\r
  92                                                 break;\r
  93                                         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
  94                                         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
  95                                         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
  96                                         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
  97                                                 this.duration = this._rawObject.duration * 1000;\r
  98                                                 //console.log( this.duration );\r
  99                                                 break;\r
 100         \r
 101                                         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
 102                                         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
 103                                         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
 104                                         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
 105                                         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
 106                                         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
 107                                         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
 108 \r
 109                                         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
 110                                         case 'playing' :        //      再生が開始された場合に発生\r
 111 \r
 112                                         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
 113                                         case 'seeked' :         //      シークがfalseに変化した場合に発生\r
 114                                         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
 115                                                 break;\r
 116                                         \r
 117                                         case 'ended' :\r
 118                                                 if( !this._closed && this.loop ){\r
 119                                                         this.looped = true;\r
 120                                                         this.play();\r
 121                                                         this.proxy.dispatch( 'looped' );\r
 122                                                 } else {\r
 123                                                         this._timerID && X.Timer.remove( this._timerID );\r
 124                                                         delete this._timerID;\r
 125                                                         delete this.playing;\r
 126                                                 };\r
 127                                                 break;\r
 128         \r
 129                                         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
 130                                         case 'durationchange' : // duration属性が更新された場合に発生\r
 131                                         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
 132                                 };\r
 133                                 //console.log( 'html5 ' + e.type + ' ' + ( this.proxy._listeners && this.proxy._listeners[ e.type ] && this.proxy._listeners[ e.type ].length ) );\r
 134                                 //e.type === 'canplaythrough' && console.dir( e );\r
 135                                 this.proxy.dispatch( e );\r
 136                                 \r
 137                                 if( X_Audio_HTMLAudio_playTrigger === e.type ){\r
 138                                         this._loaded = true;\r
 139                                         this.autoplay && X.Timer.once( 16, this, this.play );\r
 140                                         console.log( 'Loaded! ' + e.type );\r
 141                                 };\r
 142                         },\r
 143                         \r
 144                         close : function(){\r
 145                                 // 【javascript】モバイル向けブラウザでも音を鳴らしたい【WebAudio】\r
 146                                 // http://ingaouhou.com/archives/3633\r
 147                                 // ・使い終わったインスタンスはload()しておくとやや安定\r
 148                                 this.playing && this.pause();\r
 149                                 delete this._closed;\r
 150                                 delete this._loaded;\r
 151                                 \r
 152                                 this._rawObject.src = '';\r
 153                                 this._rawObject.load();\r
 154                         },\r
 155                         \r
 156                         play : function(){\r
 157                                 var begin, end, halfway;\r
 158                                 \r
 159                                 // もし kill 後に autoplayTimer で呼ばれても、_closed==true なので平気\r
 160                                 if( this._closed ) return;\r
 161                                 if( !this._loaded /* && !X_Audio_Sprite_inTouchAction */ ){\r
 162                         this.autoplay = true;\r
 163                         return;\r
 164                                 };\r
 165 \r
 166                                 end   = X_AudioWrapper_getEndTime( this );\r
 167                                 begin = X_AudioWrapper_getStartTime( this, end, true );\r
 168                                 this._rawObject.currentTime = begin / 1000;\r
 169                             \r
 170                             console.log( '[HTMLAudio] play ' + begin + ' -> ' + end );\r
 171                             \r
 172                             if( !this.playing ){\r
 173                                     if( X_UA.Chrome ){ // [CHROME][FIX] volume TODO どの version で 修正される？\r
 174                                         // [!] delay\r
 175                                         X.Timer.once( 0, this, this._fixForChrome );\r
 176                                         this._rawObject.volume = 0;\r
 177                                     } else {\r
 178                                         this._rawObject.volume = this.volume;\r
 179                                     };\r
 180                                 this._rawObject.play();\r
 181                                 this.playing = true;\r
 182                             };\r
 183 \r
 184                     halfway = end < this.duration;\r
 185                     this._timerID && X.Timer.remove( this._timerID );\r
 186                     \r
 187                 if( halfway ){\r
 188                                         this._timerID = X.Timer.once( end - begin, this, this._onEnded );\r
 189                 } else {\r
 190                         delete this._timerID;\r
 191                 };\r
 192                         },\r
 193                                 \r
 194                                 // [CHROME][FIX] volume\r
 195                                 _fixForChrome : X_UA.Chrome && function(){\r
 196                                         !this._closed && ( this._rawObject.volume = this.volume );\r
 197                                 },\r
 198                                 \r
 199                                 _onEnded : function(){\r
 200                                         var time;\r
 201                                         delete this._timerID;\r
 202                                         \r
 203                             if( this.playing ){\r
 204                                 \r
 205                                 time = this._rawObject.currentTime * 1000 - X_AudioWrapper_getEndTime( this ) | 0;\r
 206                                 if( time < -16 ){\r
 207                                         console.log( '> onEnd ' + time + ' ' + ( this._rawObject.currentTime * 1000 | 0 ) + '/' + X_AudioWrapper_getEndTime( this ) );\r
 208                                         this._timerID = X.Timer.once( -time, this, this._onEnded );\r
 209                                         return;\r
 210                                 };\r
 211                                 \r
 212                                 if( this.loop ){\r
 213                                         this.looped = true;\r
 214                                         this.play();\r
 215                                         this.proxy.dispatch( 'looped' );\r
 216                                 } else {\r
 217                                         this.pause();\r
 218                                         this.dispatch( 'ended' );\r
 219                                 };\r
 220                             };\r
 221                                 },\r
 222                         \r
 223                         pause : function(){\r
 224                                 this._timerID && X.Timer.remove( this._timerID );\r
 225                                 delete this._timerID;\r
 226                                 \r
 227                             if( this.playing ){\r
 228                                 !this._rawObject.error && this._rawObject.pause();\r
 229                                 delete this.playing;\r
 230                             };\r
 231                         },\r
 232         \r
 233                         state : function( obj ){\r
 234                                 var result;\r
 235                                 \r
 236                                 if( obj === undefined ){\r
 237                                     return {\r
 238                                         startTime     : this.startTime,\r
 239                                         endTime       : this.endTime < 0 ? this.duration : this.endTime,\r
 240                                         loopStartTime : this.loopStartTime < 0 ? this.startTime : this.loopStartTime,\r
 241                                         loopEndTime   : this.loopEndTime < 0 ? ( this.endTime || this.duration ) : this.loopEndTime,\r
 242                                         \r
 243                                         loop          : this.loop,\r
 244                                         looped        : this.looped,\r
 245                                         volume        : this.volume,\r
 246                                         playing       : this.playing, // && !this._rawObject.error && !this._rawObject.paused && !this._rawObject.ended,                                \r
 247                                         duration      : this.duration,\r
 248                                         \r
 249                                         currentTime   : this._rawObject.currentTime * 1000,\r
 250                                         /*\r
 251         http://www.w3schools.com/tags/av_prop_error.asp\r
 252         1 = MEDIA_ERR_ABORTED - fetching process aborted by user\r
 253     2 = MEDIA_ERR_NETWORK - error occurred when downloading\r
 254     3 = MEDIA_ERR_DECODE - error occurred when decoding\r
 255     4 = MEDIA_ERR_SRC_NOT_SUPPORTED - audio/video not supported\r
 256     */\r
 257                                         error         : this._rawObject.error || 0   // 0, 1 ~ 4 \r
 258                                     };                                  \r
 259                                 };\r
 260                         \r
 261                                 result = X_AudioWrapper_updateStates( this, obj );\r
 262                             \r
 263                                 if( result & 2 ){ // seek\r
 264                         this.play();\r
 265                                 } else {\r
 266                                         if( result & 1 ){\r
 267                                                 end     = X_AudioWrapper_getEndTime( this );\r
 268                                                 halfway = end < this.duration;\r
 269                                                 this._timerID && X.Timer.remove( this._timerID );\r
 270                                                 \r
 271                                                 if( halfway ){\r
 272                                                         this._timerID = X.Timer.once( end - this._rawObject.currentTime * 1000, this, this._onEnded );                                                  \r
 273                                                 } else {\r
 274                                                         delete this._timerID;\r
 275                                                 };\r
 276                                         };\r
 277                                         if( result & 4 ){\r
 278                                this._rawObject.volume = this.volume;\r
 279                                         };\r
 280                                 };\r
 281                             \r
 282                         }\r
 283         \r
 284                 }\r
 285         );\r
 286         \r
 287         X_Audio_BACKENDS.push(\r
 288                 {\r
 289                         backendName : 'HTML5 Audio',\r
 290                 /*\r
 291                  * 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
 292                  * https://developer.mozilla.org/ja/docs/Web/HTML/Supported_media_formats\r
 293                  * \r
 294                  * 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
 295                  * http://sothis.blog.so-net.ne.jp/2010-10-27\r
 296                  * 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
 297                  * \r
 298                  * IE9 の HTML5 Audio について\r
 299                  * http://kentablog.cluscore.com/2011/05/ie9-html5-audio.html\r
 300                  * 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
 301                  * 2.クロスドメインアクセスには、「clientaccesspolicy.xml」か「crossdomain.xml」が必要\r
 302                  * 3.wav が不可\r
 303                  * \r
 304                  * IE9でHTML5 autio タグが無効になる\r
 305                  * http://bbs.wankuma.com/index.cgi?mode=al2&namber=64886&KLOG=109\r
 306                  *  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
 307                  *  createElement等で動的生成すると、よろしくない\r
 308                  * \r
 309                  * media-can-play-wav-audio.html\r
 310                  * https://github.com/adobe/webkit/blob/master/LayoutTests/media/media-can-play-wav-audio.html\r
 311                  * testExpected("audio.canPlayType('audio/wav; codecs=1')", "probably");\r
 312                  * \r
 313                  * HTML5 audioタグ ブラウザ間の違い\r
 314                  * 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
 315                  *  - volume, muted iPhone(iOS4-6)、Android(2.3.6)では動作せず。\r
 316                  *  - 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
 317                  */     \r
 318                         detect : function( proxy, source, ext ){\r
 319                                 var ok, mineType = 'audio/' + ext;\r
 320                                 switch( ext ){\r
 321                                         case 'mp3' :\r
 322                                                 ok = X_UA.IE || X_UA.Chrome || ( X_UA.Windows && X_UA.Safari );\r
 323                                                 mineType = 'audio/mpeg';\r
 324                                                 break;\r
 325                                         case 'ogg' :\r
 326                                                 ok = 15 <= X_UA.Gecko || X_UA.Chrome || X_UA.Opera;\r
 327                                                 break;\r
 328                                         case 'm4a' :\r
 329                                                 ok = X_UA.IE || X_UA.WebKit;\r
 330                                                 mineType = 'audio/mp4';\r
 331                                                 break;\r
 332                                         case 'webm' :\r
 333                                                 ok = 2 <= X_UA.Gecko || 10.6 <= X_UA.Opera; // firefox4+(Gecko2+)\r
 334                                                 break;\r
 335                                         case 'wav' :\r
 336                                                 ok = X_UA.Gecko || X_UA.Opera || ( X_UA.Windows && X_UA.Safari );\r
 337                                                 //mineType = 'audio/wav'; // audio/x-wav ?\r
 338                                                 break;\r
 339                                         default :\r
 340                                                 mineType = '';\r
 341                                 };\r
 342                                 \r
 343                                 if( !ok && mineType ){\r
 344                                         if( !X_Audio_rawAudio ) X_Audio_rawAudio = new Audio;\r
 345                                         ok = X_Audio_rawAudio.canPlayType( mineType );\r
 346                                 };\r
 347                                 \r
 348                                 proxy.asyncDispatch( ok ? 'support' : 'nosupport' );\r
 349                         },\r
 350                         \r
 351                         klass : X_Audio_HTML5AudioWrapper\r
 352                         \r
 353                 } );\r
 354 \r
 355 /*\r
 356  * \r
 357  * howler.js\r
 358  *     codecs = {\r
 359       mp3: !!audioTest.canPlayType('audio/mpeg;').replace(/^no$/, ''),\r
 360       opus: !!audioTest.canPlayType('audio/ogg; codecs="opus"').replace(/^no$/, ''),\r
 361       ogg: !!audioTest.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/, ''),\r
 362       wav: !!audioTest.canPlayType('audio/wav; codecs="1"').replace(/^no$/, ''),\r
 363       aac: !!audioTest.canPlayType('audio/aac;').replace(/^no$/, ''),\r
 364       m4a: !!(audioTest.canPlayType('audio/x-m4a;') || audioTest.canPlayType('audio/m4a;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, ''),\r
 365       mp4: !!(audioTest.canPlayType('audio/x-mp4;') || audioTest.canPlayType('audio/mp4;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, ''),\r
 366       weba: !!audioTest.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/, '')\r
 367     };\r
 368  */\r
 369         \r
 370 };\r
 371 \r
 372 \r
 373 \r
 374 \r
 375 \r