13 var X_Audio_BACKENDS = [], // Array.<Hash>
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14 X_Audio_WRAPPER_LIST = [], // Array.<AudioWrapper>
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15 X_Audio_CAN_PLAY = 1,
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16 X_Audio_NOT_PLAY = 2;
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18 function X_Audio_getAudioWrapper( proxy ){
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19 var i = X_Audio_WRAPPER_LIST.length;
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21 if( X_Audio_WRAPPER_LIST[ --i ].proxy === proxy ) return X_Audio_WRAPPER_LIST[ i ];
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26 * X.Event.BACKEND_READY
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27 * X.Event.BACKEND_NONE
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29 * X.Event.READY 再生可能、実際の状態は canplay から loadeddata まで様々、、、
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31 * 1 : ユーザーによってメディアの取得が中断された
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34 * 4 : メディアがサポートされていない
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36 * X.Event.MEDIA_PLAYING 再生中に1秒以下のタイミングで発生.currentTime が取れる?
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37 * X.Event.MEDIA_LOOP ループ直前に発生、キャンセル可能
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38 * X.Event.MEDIA_LOOPED ループ時に発生
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39 * X.Event.MEDIA_ENDED 再生位置の(音声の)最後についた
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40 * X.Event.MEDIA_PAUSED ポーズした
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41 * X.Event.MEDIA_WAITING 再生中に音声が待機状態に。間もなく X.Event.MEDIA_PLAYING に移行。
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42 * X.Event.MEDIA_SEEKING シーク中に音声が待機状態に。間もなく X.Event.MEDIA_PLAYING に移行。
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45 X.Audio = X.EventDispatcher.inherits(
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47 X.Class.POOL_OBJECT,
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53 Constructor : function( sourceList, opt_option ){
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54 X_Audio_startDetectionBackend(
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55 X_Audio_BACKENDS[ 0 ], this,
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56 X.Type.isArray( sourceList ) ? X_Object_cloneArray( sourceList ) : [ sourceList ],
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58 this.listenOnce( [ X.Event.BACKEND_READY, X.Event.BACKEND_NONE, X.Event.KILL_INSTANCE ], X_Audio_handleEvent );
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61 play : function( startTime, endTime, loop, loopStartTime, loopEndTime ){
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62 var state, duration;
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63 if( 0 <= startTime ){
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65 currentTime : startTime,
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66 startTime : startTime,
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69 loopStartTime : loopStartTime,
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70 loopEndTime : loopEndTime
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73 this._backend !== -1 && X_Audio_getAudioWrapper( this ).play();
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77 seek : function( seekTime ){
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78 var state = this.state(),
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79 end = X_AudioWrapper_getEndTime( X_Audio_getAudioWrapper( this ) );
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80 if( seekTime < end ){
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81 this.state( { currentTime : seekTime } );
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87 this.state().playing && X_Audio_getAudioWrapper( this ).pause();
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91 state : function( obj ){
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92 var backend = this._backend !== -1 && X_Audio_getAudioWrapper( this );
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94 if( obj === undefined ){
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100 loopStartTime : -1,
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108 source : this.source || '',
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112 backend && backend.state( obj );
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116 loop : function( v ){
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117 var backend = this._backend !== -1 && X_Audio_getAudioWrapper( this );
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118 if( v === undefined ){
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119 return backend && backend.state().loop;
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121 backend && backend.state( { loop : v } );
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125 volume : function( v ){
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126 var backend = this._backend !== -1 && X_Audio_getAudioWrapper( this );
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127 if( v === undefined ){
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128 return backend && backend.state().volume;
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130 backend && backend.state( { volume : v } );
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134 currentTime : function( v ){
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135 var backend = this._backend !== -1 && X_Audio_getAudioWrapper( this );
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136 if( v === undefined ){
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137 return backend && backend.state().currentTime;
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139 backend && backend.state( { currentTime : v } );
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143 isPlaying : function(){
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144 return this._backend !== -1 && X_Audio_getAudioWrapper( this ).state().playing;
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150 function X_Audio_handleEvent( e ){
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152 case X.Event.BACKEND_READY :
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153 this.unlisten( X.Event.BACKEND_NONE, X_Audio_handleEvent );
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154 this.source = e.source;
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155 this.backendName = X_Audio_BACKENDS[ this._backend ].backendName;
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156 X_Audio_WRAPPER_LIST.push(
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157 new X_Audio_BACKENDS[ this._backend ]
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158 .klass( this, e.source, e.option ) );
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161 case X.Event.BACKEND_NONE :
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165 case X.Event.KILL_INSTANCE :
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166 this._backend !== -1 && X_Audio_getAudioWrapper( this ).close();
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173 * TODO preplayerror play してみたら error が出た、backend の変更。
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176 function X_Audio_startDetectionBackend( backend, proxy, sourceList, option ){
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177 var source = sourceList[ 0 ] || '',
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178 ext = X_URL_getEXT( source ),
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181 if( source && backend ){
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182 sup = [ proxy, sourceList, option, source, ext ];
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185 proxy.listenOnce( [ X_Audio_CAN_PLAY, X_Audio_NOT_PLAY ], backend, X_Audio_onEndedDetection, sup );
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186 backend.detect( proxy, source, ext );
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188 proxy.asyncDispatch( X.Event.BACKEND_NONE );
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192 function X_Audio_onEndedDetection( e, proxy, sourceList, option, source, ext, sup ){
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193 var i = X_Audio_BACKENDS.indexOf( this ), backend;
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195 proxy.unlisten( [ X_Audio_CAN_PLAY, X_Audio_NOT_PLAY ], this, X_Audio_onEndedDetection, sup );
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198 case X_Audio_CAN_PLAY :
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199 proxy._backend = i;
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200 proxy.asyncDispatch( {
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201 type : X.Event.BACKEND_READY,
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204 backendName : this.backendName
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207 case X_Audio_NOT_PLAY :
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208 console.log( 'No ' + source + ' ' + this.backendName );
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209 if( sup[ 3 ] = source = sourceList[ sourceList.indexOf( source ) + 1 ] ){
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210 sup[ 4 ] = ext = X_URL_getEXT( source );
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211 proxy.listenOnce( [ X_Audio_CAN_PLAY, X_Audio_NOT_PLAY ], this, X_Audio_onEndedDetection, sup );
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212 this.detect( proxy, source, ext );
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214 if( backend = X_Audio_BACKENDS[ i + 1 ] ){
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215 X_Audio_startDetectionBackend( backend, proxy, sourceList, option );
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217 proxy.asyncDispatch( X.Event.BACKEND_NONE );
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225 function X_AudioWrapper_updateStates( audioWrapper, obj ){
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226 var playing = audioWrapper.playing,
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228 end = 0, seek = 0, volume = 0;
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233 case 'currentTime' :
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234 v = X_AudioWrapper_timeStringToNumber( v );
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235 if( X.Type.isNumber( v ) ){
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237 if( audioWrapper.state().currentTime !== v ){
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238 audioWrapper.seekTime = v;
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242 audioWrapper.seekTime = v;
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251 case 'loopStartTime' :
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252 case 'loopEndTime' :
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253 v = X_AudioWrapper_timeStringToNumber( v );
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254 console.log( k + ' ' + v );
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255 if( v || v === 0 ){
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256 if( audioWrapper[ k ] !== v ){
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257 audioWrapper[ k ] = v;
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259 // 再生中の endTime の変更
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260 if( playing && ( k === 'endTime' || k === 'loopEndTime' ) ) end = 1;
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263 delete audioWrapper[ k ];
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264 if( playing && ( k === 'endTime' || k === 'loopEndTime' ) ) end = 1;
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269 if( playing ) seek = 2;
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272 if( X.Type.isBoolean( v ) && audioWrapper[ k ] !== v ){
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273 audioWrapper[ k ] = v;
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278 if( X.Type.isNumber( v ) ){
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279 v = v < 0 ? 0 : 1 < v ? 1 : v;
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280 if( audioWrapper[ k ] !== v ){
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281 audioWrapper[ k ] = v;
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282 // if playing -> update
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283 if( playing ) volume = 4;
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290 if( audioWrapper.endTime < audioWrapper.startTime ||
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291 ( audioWrapper.loopEndTime < 0 ? audioWrapper.endTime : audioWrapper.loopEndTime ) < ( audioWrapper.loopStartTime < 0 ? audioWrapper.startTime : audioWrapper.loopStartTime ) ||
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292 X_AudioWrapper_getEndTime( audioWrapper ) < audioWrapper.seekTime// ||
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293 //audioWrapper.duration < audioWrapper.endTime
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295 console.log( 'error @updateStateObject() begin:' + audioWrapper.startTime + ' end:' + audioWrapper.endTime + ' d:' + audioWrapper.duration + ' ls:' + audioWrapper.loopStartTime );
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299 return end + seek + volume;
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302 function X_AudioWrapper_timeStringToNumber( time ){
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303 var ary, ms, s = 0, m = 0, h = 0;
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304 if( X.Type.isNumber( time ) ) return time;
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305 if( !X.Type.isString( time ) || !time.length ) return;
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307 ary = time.split( '.' );
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308 ms = parseInt( ( ary[ 1 ] + '000' ).substr( 0, 3 ) ) || 0;
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310 ary = ary[ 0 ].split( ':' );
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311 if( 3 < ary.length ) return;
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313 switch( ary.length ){
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317 s = parseInt( ary[ 0 ] ) || 0;
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320 m = parseInt( ary[ 0 ] ) || 0;
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321 s = parseInt( ary[ 1 ] ) || 0;
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322 if( 60 <= s ) alert( 'invalid time string ' + time );
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325 h = parseInt( ary[ 0 ] ) || 0;
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326 m = parseInt( ary[ 1 ] ) || 0;
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327 s = parseInt( ary[ 2 ] ) || 0;
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328 if( 60 <= s ) alert( 'invalid time string ' + time );
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329 if( 60 <= m ) alert( 'invalid time string ' + time );
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332 alert( 'invalid time string ' + time );
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334 ms = ( h * 3600 + m * 60 + s ) * 1000 + ms;
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335 return ms < 0 ? 0 : ms;
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338 function X_AudioWrapper_getStartTime( audioWrapper, endTime, delSeekTime ){
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339 var seek = audioWrapper.seekTime;
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340 if( delSeekTime ) delete audioWrapper.seekTime;
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343 if( audioWrapper.duration <= seek || endTime < seek ) return 0;
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347 if( audioWrapper.looped && 0 <= audioWrapper.loopStartTime ){
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348 if( audioWrapper.duration <= audioWrapper.loopStartTime || endTime < audioWrapper.loopStartTime ) return 0;
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349 return audioWrapper.loopStartTime;
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352 if( audioWrapper.startTime < 0 || audioWrapper.duration <= audioWrapper.startTime ) return 0;
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353 return audioWrapper.startTime;
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356 function X_AudioWrapper_getEndTime( audioWrapper ){
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357 var duration = audioWrapper.duration;
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359 if( audioWrapper.looped && 0 <= audioWrapper.loopEndTime ){
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360 if( duration <= audioWrapper.loopEndTime ) return duration;
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361 return audioWrapper.loopEndTime;
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364 if( audioWrapper.endTime < 0 || duration <= audioWrapper.endTime ) return duration;
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365 return audioWrapper.endTime;
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