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hls.light.js
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hls.light.js
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(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory();
else if(typeof define === 'function' && define.amd)
define([], factory);
else if(typeof exports === 'object')
exports["Hls"] = factory();
else
root["Hls"] = factory();
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, {
/******/ configurable: false,
/******/ enumerable: true,
/******/ get: getter
/******/ });
/******/ }
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "/dist/";
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = 8);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return enableLogs; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return logger; });
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
function noop() {}
var fakeLogger = {
trace: noop,
debug: noop,
log: noop,
warn: noop,
info: noop,
error: noop
};
var exportedLogger = fakeLogger;
/*globals self: false */
//let lastCallTime;
// function formatMsgWithTimeInfo(type, msg) {
// const now = Date.now();
// const diff = lastCallTime ? '+' + (now - lastCallTime) : '0';
// lastCallTime = now;
// msg = (new Date(now)).toISOString() + ' | [' + type + '] > ' + msg + ' ( ' + diff + ' ms )';
// return msg;
// }
function formatMsg(type, msg) {
msg = '[' + type + '] > ' + msg;
return msg;
}
function consolePrintFn(type) {
var func = self.console[type];
if (func) {
return function () {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (args[0]) {
args[0] = formatMsg(type, args[0]);
}
func.apply(self.console, args);
};
}
return noop;
}
function exportLoggerFunctions(debugConfig) {
for (var _len2 = arguments.length, functions = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
functions[_key2 - 1] = arguments[_key2];
}
functions.forEach(function (type) {
exportedLogger[type] = debugConfig[type] ? debugConfig[type].bind(debugConfig) : consolePrintFn(type);
});
}
var enableLogs = function enableLogs(debugConfig) {
if (debugConfig === true || (typeof debugConfig === 'undefined' ? 'undefined' : _typeof(debugConfig)) === 'object') {
exportLoggerFunctions(debugConfig,
// Remove out from list here to hard-disable a log-level
//'trace',
'debug', 'log', 'info', 'warn', 'error');
// Some browsers don't allow to use bind on console object anyway
// fallback to default if needed
try {
exportedLogger.log();
} catch (e) {
exportedLogger = fakeLogger;
}
} else {
exportedLogger = fakeLogger;
}
};
var logger = exportedLogger;
/***/ }),
/* 1 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
/* harmony default export */ __webpack_exports__["a"] = ({
// fired before MediaSource is attaching to media element - data: { media }
MEDIA_ATTACHING: 'hlsMediaAttaching',
// fired when MediaSource has been succesfully attached to media element - data: { }
MEDIA_ATTACHED: 'hlsMediaAttached',
// fired before detaching MediaSource from media element - data: { }
MEDIA_DETACHING: 'hlsMediaDetaching',
// fired when MediaSource has been detached from media element - data: { }
MEDIA_DETACHED: 'hlsMediaDetached',
// fired when we buffer is going to be reset - data: { }
BUFFER_RESET: 'hlsBufferReset',
// fired when we know about the codecs that we need buffers for to push into - data: {tracks : { container, codec, levelCodec, initSegment, metadata }}
BUFFER_CODECS: 'hlsBufferCodecs',
// fired when sourcebuffers have been created - data: { tracks : tracks }
BUFFER_CREATED: 'hlsBufferCreated',
// fired when we append a segment to the buffer - data: { segment: segment object }
BUFFER_APPENDING: 'hlsBufferAppending',
// fired when we are done with appending a media segment to the buffer - data : { parent : segment parent that triggered BUFFER_APPENDING, pending : nb of segments waiting for appending for this segment parent}
BUFFER_APPENDED: 'hlsBufferAppended',
// fired when the stream is finished and we want to notify the media buffer that there will be no more data - data: { }
BUFFER_EOS: 'hlsBufferEos',
// fired when the media buffer should be flushed - data { startOffset, endOffset }
BUFFER_FLUSHING: 'hlsBufferFlushing',
// fired when the media buffer has been flushed - data: { }
BUFFER_FLUSHED: 'hlsBufferFlushed',
// fired to signal that a manifest loading starts - data: { url : manifestURL}
MANIFEST_LOADING: 'hlsManifestLoading',
// fired after manifest has been loaded - data: { levels : [available quality levels], audioTracks : [ available audio tracks], url : manifestURL, stats : { trequest, tfirst, tload, mtime}}
MANIFEST_LOADED: 'hlsManifestLoaded',
// fired after manifest has been parsed - data: { levels : [available quality levels], firstLevel : index of first quality level appearing in Manifest}
MANIFEST_PARSED: 'hlsManifestParsed',
// fired when a level switch is requested - data: { level : id of new level } // deprecated in favor LEVEL_SWITCHING
LEVEL_SWITCH: 'hlsLevelSwitch',
// fired when a level switch is requested - data: { level : id of new level }
LEVEL_SWITCHING: 'hlsLevelSwitching',
// fired when a level switch is effective - data: { level : id of new level }
LEVEL_SWITCHED: 'hlsLevelSwitched',
// fired when a level playlist loading starts - data: { url : level URL, level : id of level being loaded}
LEVEL_LOADING: 'hlsLevelLoading',
// fired when a level playlist loading finishes - data: { details : levelDetails object, level : id of loaded level, stats : { trequest, tfirst, tload, mtime} }
LEVEL_LOADED: 'hlsLevelLoaded',
// fired when a level's details have been updated based on previous details, after it has been loaded - data: { details : levelDetails object, level : id of updated level }
LEVEL_UPDATED: 'hlsLevelUpdated',
// fired when a level's PTS information has been updated after parsing a fragment - data: { details : levelDetails object, level : id of updated level, drift: PTS drift observed when parsing last fragment }
LEVEL_PTS_UPDATED: 'hlsLevelPtsUpdated',
// fired to notify that audio track lists has been updated - data: { audioTracks : audioTracks }
AUDIO_TRACKS_UPDATED: 'hlsAudioTracksUpdated',
// fired when an audio track switch occurs - data: { id : audio track id } // deprecated in favor AUDIO_TRACK_SWITCHING
AUDIO_TRACK_SWITCH: 'hlsAudioTrackSwitch',
// fired when an audio track switching is requested - data: { id : audio track id }
AUDIO_TRACK_SWITCHING: 'hlsAudioTrackSwitching',
// fired when an audio track switch actually occurs - data: { id : audio track id }
AUDIO_TRACK_SWITCHED: 'hlsAudioTrackSwitched',
// fired when an audio track loading starts - data: { url : audio track URL, id : audio track id }
AUDIO_TRACK_LOADING: 'hlsAudioTrackLoading',
// fired when an audio track loading finishes - data: { details : levelDetails object, id : audio track id, stats : { trequest, tfirst, tload, mtime } }
AUDIO_TRACK_LOADED: 'hlsAudioTrackLoaded',
// fired to notify that subtitle track lists has been updated - data: { subtitleTracks : subtitleTracks }
SUBTITLE_TRACKS_UPDATED: 'hlsSubtitleTracksUpdated',
// fired when an subtitle track switch occurs - data: { id : subtitle track id }
SUBTITLE_TRACK_SWITCH: 'hlsSubtitleTrackSwitch',
// fired when a subtitle track loading starts - data: { url : subtitle track URL, id : subtitle track id }
SUBTITLE_TRACK_LOADING: 'hlsSubtitleTrackLoading',
// fired when a subtitle track loading finishes - data: { details : levelDetails object, id : subtitle track id, stats : { trequest, tfirst, tload, mtime } }
SUBTITLE_TRACK_LOADED: 'hlsSubtitleTrackLoaded',
// fired when a subtitle fragment has been processed - data: { success : boolean, frag : the processed frag }
SUBTITLE_FRAG_PROCESSED: 'hlsSubtitleFragProcessed',
// fired when the first timestamp is found - data: { id : demuxer id, initPTS: initPTS, frag : fragment object }
INIT_PTS_FOUND: 'hlsInitPtsFound',
// fired when a fragment loading starts - data: { frag : fragment object }
FRAG_LOADING: 'hlsFragLoading',
// fired when a fragment loading is progressing - data: { frag : fragment object, { trequest, tfirst, loaded } }
FRAG_LOAD_PROGRESS: 'hlsFragLoadProgress',
// Identifier for fragment load aborting for emergency switch down - data: { frag : fragment object }
FRAG_LOAD_EMERGENCY_ABORTED: 'hlsFragLoadEmergencyAborted',
// fired when a fragment loading is completed - data: { frag : fragment object, payload : fragment payload, stats : { trequest, tfirst, tload, length } }
FRAG_LOADED: 'hlsFragLoaded',
// fired when a fragment has finished decrypting - data: { id : demuxer id, frag: fragment object, stats : { tstart, tdecrypt } }
FRAG_DECRYPTED: 'hlsFragDecrypted',
// fired when Init Segment has been extracted from fragment - data: { id : demuxer id, frag: fragment object, moov : moov MP4 box, codecs : codecs found while parsing fragment }
FRAG_PARSING_INIT_SEGMENT: 'hlsFragParsingInitSegment',
// fired when parsing sei text is completed - data: { id : demuxer id, frag: fragment object, samples : [ sei samples pes ] }
FRAG_PARSING_USERDATA: 'hlsFragParsingUserdata',
// fired when parsing id3 is completed - data: { id : demuxer id, frag: fragment object, samples : [ id3 samples pes ] }
FRAG_PARSING_METADATA: 'hlsFragParsingMetadata',
// fired when data have been extracted from fragment - data: { id : demuxer id, frag: fragment object, data1 : moof MP4 box or TS fragments, data2 : mdat MP4 box or null}
FRAG_PARSING_DATA: 'hlsFragParsingData',
// fired when fragment parsing is completed - data: { id : demuxer id, frag: fragment object }
FRAG_PARSED: 'hlsFragParsed',
// fired when fragment remuxed MP4 boxes have all been appended into SourceBuffer - data: { id : demuxer id, frag : fragment object, stats : { trequest, tfirst, tload, tparsed, tbuffered, length, bwEstimate } }
FRAG_BUFFERED: 'hlsFragBuffered',
// fired when fragment matching with current media position is changing - data : { id : demuxer id, frag : fragment object }
FRAG_CHANGED: 'hlsFragChanged',
// Identifier for a FPS drop event - data: { curentDropped, currentDecoded, totalDroppedFrames }
FPS_DROP: 'hlsFpsDrop',
//triggered when FPS drop triggers auto level capping - data: { level, droppedlevel }
FPS_DROP_LEVEL_CAPPING: 'hlsFpsDropLevelCapping',
// Identifier for an error event - data: { type : error type, details : error details, fatal : if true, hls.js cannot/will not try to recover, if false, hls.js will try to recover,other error specific data }
ERROR: 'hlsError',
// fired when hls.js instance starts destroying. Different from MEDIA_DETACHED as one could want to detach and reattach a media to the instance of hls.js to handle mid-rolls for example - data: { }
DESTROYING: 'hlsDestroying',
// fired when a decrypt key loading starts - data: { frag : fragment object }
KEY_LOADING: 'hlsKeyLoading',
// fired when a decrypt key loading is completed - data: { frag : fragment object, payload : key payload, stats : { trequest, tfirst, tload, length } }
KEY_LOADED: 'hlsKeyLoaded',
// fired upon stream controller state transitions - data: { previousState, nextState }
STREAM_STATE_TRANSITION: 'hlsStreamStateTransition'
});
/***/ }),
/* 2 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return ErrorTypes; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return ErrorDetails; });
var ErrorTypes = {
// Identifier for a network error (loading error / timeout ...)
NETWORK_ERROR: 'networkError',
// Identifier for a media Error (video/parsing/mediasource error)
MEDIA_ERROR: 'mediaError',
// Identifier for a mux Error (demuxing/remuxing)
MUX_ERROR: 'muxError',
// Identifier for all other errors
OTHER_ERROR: 'otherError'
};
var ErrorDetails = {
// Identifier for a manifest load error - data: { url : faulty URL, response : { code: error code, text: error text }}
MANIFEST_LOAD_ERROR: 'manifestLoadError',
// Identifier for a manifest load timeout - data: { url : faulty URL, response : { code: error code, text: error text }}
MANIFEST_LOAD_TIMEOUT: 'manifestLoadTimeOut',
// Identifier for a manifest parsing error - data: { url : faulty URL, reason : error reason}
MANIFEST_PARSING_ERROR: 'manifestParsingError',
// Identifier for a manifest with only incompatible codecs error - data: { url : faulty URL, reason : error reason}
MANIFEST_INCOMPATIBLE_CODECS_ERROR: 'manifestIncompatibleCodecsError',
// Identifier for a level load error - data: { url : faulty URL, response : { code: error code, text: error text }}
LEVEL_LOAD_ERROR: 'levelLoadError',
// Identifier for a level load timeout - data: { url : faulty URL, response : { code: error code, text: error text }}
LEVEL_LOAD_TIMEOUT: 'levelLoadTimeOut',
// Identifier for a level switch error - data: { level : faulty level Id, event : error description}
LEVEL_SWITCH_ERROR: 'levelSwitchError',
// Identifier for an audio track load error - data: { url : faulty URL, response : { code: error code, text: error text }}
AUDIO_TRACK_LOAD_ERROR: 'audioTrackLoadError',
// Identifier for an audio track load timeout - data: { url : faulty URL, response : { code: error code, text: error text }}
AUDIO_TRACK_LOAD_TIMEOUT: 'audioTrackLoadTimeOut',
// Identifier for fragment load error - data: { frag : fragment object, response : { code: error code, text: error text }}
FRAG_LOAD_ERROR: 'fragLoadError',
// Identifier for fragment loop loading error - data: { frag : fragment object}
FRAG_LOOP_LOADING_ERROR: 'fragLoopLoadingError',
// Identifier for fragment load timeout error - data: { frag : fragment object}
FRAG_LOAD_TIMEOUT: 'fragLoadTimeOut',
// Identifier for a fragment decryption error event - data: {id : demuxer Id,frag: fragment object, reason : parsing error description }
FRAG_DECRYPT_ERROR: 'fragDecryptError',
// Identifier for a fragment parsing error event - data: { id : demuxer Id, reason : parsing error description }
// will be renamed DEMUX_PARSING_ERROR and switched to MUX_ERROR in the next major release
FRAG_PARSING_ERROR: 'fragParsingError',
// Identifier for a remux alloc error event - data: { id : demuxer Id, frag : fragment object, bytes : nb of bytes on which allocation failed , reason : error text }
REMUX_ALLOC_ERROR: 'remuxAllocError',
// Identifier for decrypt key load error - data: { frag : fragment object, response : { code: error code, text: error text }}
KEY_LOAD_ERROR: 'keyLoadError',
// Identifier for decrypt key load timeout error - data: { frag : fragment object}
KEY_LOAD_TIMEOUT: 'keyLoadTimeOut',
// Triggered when an exception occurs while adding a sourceBuffer to MediaSource - data : { err : exception , mimeType : mimeType }
BUFFER_ADD_CODEC_ERROR: 'bufferAddCodecError',
// Identifier for a buffer append error - data: append error description
BUFFER_APPEND_ERROR: 'bufferAppendError',
// Identifier for a buffer appending error event - data: appending error description
BUFFER_APPENDING_ERROR: 'bufferAppendingError',
// Identifier for a buffer stalled error event
BUFFER_STALLED_ERROR: 'bufferStalledError',
// Identifier for a buffer full event
BUFFER_FULL_ERROR: 'bufferFullError',
// Identifier for a buffer seek over hole event
BUFFER_SEEK_OVER_HOLE: 'bufferSeekOverHole',
// Identifier for a buffer nudge on stall (playback is stuck although currentTime is in a buffered area)
BUFFER_NUDGE_ON_STALL: 'bufferNudgeOnStall',
// Identifier for an internal exception happening inside hls.js while handling an event
INTERNAL_EXCEPTION: 'internalException'
};
/***/ }),
/* 3 */
/***/ (function(module, exports) {
// A blank file used to build the "light" configurations
// This file replaces modules which we do not want to build
// This replacement is done in the "resolve" section of the webpack config
/***/ }),
/* 4 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
* ID3 parser
*/
var ID3 = function () {
function ID3() {
_classCallCheck(this, ID3);
}
/**
* Returns true if an ID3 header can be found at offset in data
* @param {Uint8Array} data - The data to search in
* @param {number} offset - The offset at which to start searching
* @return {boolean} - True if an ID3 header is found
*/
ID3.isHeader = function isHeader(data, offset) {
/*
* http://id3.org/id3v2.3.0
* [0] = 'I'
* [1] = 'D'
* [2] = '3'
* [3,4] = {Version}
* [5] = {Flags}
* [6-9] = {ID3 Size}
*
* An ID3v2 tag can be detected with the following pattern:
* $49 44 33 yy yy xx zz zz zz zz
* Where yy is less than $FF, xx is the 'flags' byte and zz is less than $80
*/
if (offset + 10 <= data.length) {
//look for 'ID3' identifier
if (data[offset] === 0x49 && data[offset + 1] === 0x44 && data[offset + 2] === 0x33) {
//check version is within range
if (data[offset + 3] < 0xFF && data[offset + 4] < 0xFF) {
//check size is within range
if (data[offset + 6] < 0x80 && data[offset + 7] < 0x80 && data[offset + 8] < 0x80 && data[offset + 9] < 0x80) {
return true;
}
}
}
}
return false;
};
/**
* Returns true if an ID3 footer can be found at offset in data
* @param {Uint8Array} data - The data to search in
* @param {number} offset - The offset at which to start searching
* @return {boolean} - True if an ID3 footer is found
*/
ID3.isFooter = function isFooter(data, offset) {
/*
* The footer is a copy of the header, but with a different identifier
*/
if (offset + 10 <= data.length) {
//look for '3DI' identifier
if (data[offset] === 0x33 && data[offset + 1] === 0x44 && data[offset + 2] === 0x49) {
//check version is within range
if (data[offset + 3] < 0xFF && data[offset + 4] < 0xFF) {
//check size is within range
if (data[offset + 6] < 0x80 && data[offset + 7] < 0x80 && data[offset + 8] < 0x80 && data[offset + 9] < 0x80) {
return true;
}
}
}
}
return false;
};
/**
* Returns any adjacent ID3 tags found in data starting at offset, as one block of data
* @param {Uint8Array} data - The data to search in
* @param {number} offset - The offset at which to start searching
* @return {Uint8Array} - The block of data containing any ID3 tags found
*/
ID3.getID3Data = function getID3Data(data, offset) {
var front = offset;
var length = 0;
while (ID3.isHeader(data, offset)) {
//ID3 header is 10 bytes
length += 10;
var size = ID3._readSize(data, offset + 6);
length += size;
if (ID3.isFooter(data, offset + 10)) {
//ID3 footer is 10 bytes
length += 10;
}
offset += length;
}
if (length > 0) {
return data.subarray(front, front + length);
}
return undefined;
};
ID3._readSize = function _readSize(data, offset) {
var size = 0;
size = (data[offset] & 0x7f) << 21;
size |= (data[offset + 1] & 0x7f) << 14;
size |= (data[offset + 2] & 0x7f) << 7;
size |= data[offset + 3] & 0x7f;
return size;
};
/**
* Searches for the Elementary Stream timestamp found in the ID3 data chunk
* @param {Uint8Array} data - Block of data containing one or more ID3 tags
* @return {number} - The timestamp
*/
ID3.getTimeStamp = function getTimeStamp(data) {
var frames = ID3.getID3Frames(data);
for (var i = 0; i < frames.length; i++) {
var frame = frames[i];
if (ID3.isTimeStampFrame(frame)) {
return ID3._readTimeStamp(frame);
}
}
return undefined;
};
/**
* Returns true if the ID3 frame is an Elementary Stream timestamp frame
* @param {ID3 frame} frame
*/
ID3.isTimeStampFrame = function isTimeStampFrame(frame) {
return frame && frame.key === 'PRIV' && frame.info === 'com.apple.streaming.transportStreamTimestamp';
};
ID3._getFrameData = function _getFrameData(data) {
/*
Frame ID $xx xx xx xx (four characters)
Size $xx xx xx xx
Flags $xx xx
*/
var type = String.fromCharCode(data[0], data[1], data[2], data[3]);
var size = ID3._readSize(data, 4);
//skip frame id, size, and flags
var offset = 10;
return { type: type, size: size, data: data.subarray(offset, offset + size) };
};
/**
* Returns an array of ID3 frames found in all the ID3 tags in the id3Data
* @param {Uint8Array} id3Data - The ID3 data containing one or more ID3 tags
* @return {ID3 frame[]} - Array of ID3 frame objects
*/
ID3.getID3Frames = function getID3Frames(id3Data) {
var offset = 0;
var frames = [];
while (ID3.isHeader(id3Data, offset)) {
var size = ID3._readSize(id3Data, offset + 6);
//skip past ID3 header
offset += 10;
var end = offset + size;
//loop through frames in the ID3 tag
while (offset + 8 < end) {
var frameData = ID3._getFrameData(id3Data.subarray(offset));
var frame = ID3._decodeFrame(frameData);
if (frame) {
frames.push(frame);
}
//skip frame header and frame data
offset += frameData.size + 10;
}
if (ID3.isFooter(id3Data, offset)) {
offset += 10;
}
}
return frames;
};
ID3._decodeFrame = function _decodeFrame(frame) {
if (frame.type === 'PRIV') {
return ID3._decodePrivFrame(frame);
} else if (frame.type[0] === 'T') {
return ID3._decodeTextFrame(frame);
} else if (frame.type[0] === 'W') {
return ID3._decodeURLFrame(frame);
}
return undefined;
};
ID3._readTimeStamp = function _readTimeStamp(timeStampFrame) {
if (timeStampFrame.data.byteLength === 8) {
var data = new Uint8Array(timeStampFrame.data);
// timestamp is 33 bit expressed as a big-endian eight-octet number,
// with the upper 31 bits set to zero.
var pts33Bit = data[3] & 0x1;
var timestamp = (data[4] << 23) + (data[5] << 15) + (data[6] << 7) + data[7];
timestamp /= 45;
if (pts33Bit) {
timestamp += 47721858.84; // 2^32 / 90
}
return Math.round(timestamp);
}
return undefined;
};
ID3._decodePrivFrame = function _decodePrivFrame(frame) {
/*
Format: <text string>\0<binary data>
*/
if (frame.size < 2) {
return undefined;
}
var owner = ID3._utf8ArrayToStr(frame.data);
var privateData = new Uint8Array(frame.data.subarray(owner.length + 1));
return { key: frame.type, info: owner, data: privateData.buffer };
};
ID3._decodeTextFrame = function _decodeTextFrame(frame) {
if (frame.size < 2) {
return undefined;
}
if (frame.type === 'TXXX') {
/*
Format:
[0] = {Text Encoding}
[1-?] = {Description}\0{Value}
*/
var index = 1;
var description = ID3._utf8ArrayToStr(frame.data.subarray(index));
index += description.length + 1;
var value = ID3._utf8ArrayToStr(frame.data.subarray(index));
return { key: frame.type, info: description, data: value };
} else {
/*
Format:
[0] = {Text Encoding}
[1-?] = {Value}
*/
var text = ID3._utf8ArrayToStr(frame.data.subarray(1));
return { key: frame.type, data: text };
}
};
ID3._decodeURLFrame = function _decodeURLFrame(frame) {
if (frame.type === 'WXXX') {
/*
Format:
[0] = {Text Encoding}
[1-?] = {Description}\0{URL}
*/
if (frame.size < 2) {
return undefined;
}
var index = 1;
var description = ID3._utf8ArrayToStr(frame.data.subarray(index));
index += description.length + 1;
var value = ID3._utf8ArrayToStr(frame.data.subarray(index));
return { key: frame.type, info: description, data: value };
} else {
/*
Format:
[0-?] = {URL}
*/
var url = ID3._utf8ArrayToStr(frame.data);
return { key: frame.type, data: url };
}
};
// http://stackoverflow.com/questions/8936984/uint8array-to-string-in-javascript/22373197
// http://www.onicos.com/staff/iz/amuse/javascript/expert/utf.txt
/* utf.js - UTF-8 <=> UTF-16 convertion
*
* Copyright (C) 1999 Masanao Izumo <[email protected]>
* Version: 1.0
* LastModified: Dec 25 1999
* This library is free. You can redistribute it and/or modify it.
*/
ID3._utf8ArrayToStr = function _utf8ArrayToStr(array) {
var char2 = void 0;
var char3 = void 0;
var out = '';
var i = 0;
var length = array.length;
while (i < length) {
var c = array[i++];
switch (c >> 4) {
case 0:
return out;
case 1:case 2:case 3:case 4:case 5:case 6:case 7:
// 0xxxxxxx
out += String.fromCharCode(c);
break;
case 12:case 13:
// 110x xxxx 10xx xxxx
char2 = array[i++];
out += String.fromCharCode((c & 0x1F) << 6 | char2 & 0x3F);
break;
case 14:
// 1110 xxxx 10xx xxxx 10xx xxxx
char2 = array[i++];
char3 = array[i++];
out += String.fromCharCode((c & 0x0F) << 12 | (char2 & 0x3F) << 6 | (char3 & 0x3F) << 0);
break;
}
}
return out;
};
return ID3;
}();
/* harmony default export */ __webpack_exports__["a"] = (ID3);
/***/ }),
/* 5 */
/***/ (function(module, exports) {
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
function EventEmitter() {
this._events = this._events || {};
this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;
// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;
EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;
// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
EventEmitter.defaultMaxListeners = 10;
// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function(n) {
if (!isNumber(n) || n < 0 || isNaN(n))
throw TypeError('n must be a positive number');
this._maxListeners = n;
return this;
};
EventEmitter.prototype.emit = function(type) {
var er, handler, len, args, i, listeners;
if (!this._events)
this._events = {};
// If there is no 'error' event listener then throw.
if (type === 'error') {
if (!this._events.error ||
(isObject(this._events.error) && !this._events.error.length)) {
er = arguments[1];
if (er instanceof Error) {
throw er; // Unhandled 'error' event
} else {
// At least give some kind of context to the user
var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
err.context = er;
throw err;
}
}
}
handler = this._events[type];
if (isUndefined(handler))
return false;
if (isFunction(handler)) {
switch (arguments.length) {
// fast cases
case 1:
handler.call(this);
break;
case 2:
handler.call(this, arguments[1]);
break;
case 3:
handler.call(this, arguments[1], arguments[2]);
break;
// slower
default:
args = Array.prototype.slice.call(arguments, 1);
handler.apply(this, args);
}
} else if (isObject(handler)) {
args = Array.prototype.slice.call(arguments, 1);
listeners = handler.slice();
len = listeners.length;
for (i = 0; i < len; i++)
listeners[i].apply(this, args);
}
return true;
};
EventEmitter.prototype.addListener = function(type, listener) {
var m;
if (!isFunction(listener))
throw TypeError('listener must be a function');
if (!this._events)
this._events = {};
// To avoid recursion in the case that type === "newListener"! Before
// adding it to the listeners, first emit "newListener".
if (this._events.newListener)
this.emit('newListener', type,
isFunction(listener.listener) ?
listener.listener : listener);
if (!this._events[type])
// Optimize the case of one listener. Don't need the extra array object.
this._events[type] = listener;
else if (isObject(this._events[type]))
// If we've already got an array, just append.
this._events[type].push(listener);
else
// Adding the second element, need to change to array.
this._events[type] = [this._events[type], listener];
// Check for listener leak
if (isObject(this._events[type]) && !this._events[type].warned) {
if (!isUndefined(this._maxListeners)) {
m = this._maxListeners;
} else {
m = EventEmitter.defaultMaxListeners;
}
if (m && m > 0 && this._events[type].length > m) {
this._events[type].warned = true;
console.error('(node) warning: possible EventEmitter memory ' +
'leak detected. %d listeners added. ' +
'Use emitter.setMaxListeners() to increase limit.',
this._events[type].length);
if (typeof console.trace === 'function') {
// not supported in IE 10
console.trace();
}
}
}
return this;
};
EventEmitter.prototype.on = EventEmitter.prototype.addListener;
EventEmitter.prototype.once = function(type, listener) {
if (!isFunction(listener))
throw TypeError('listener must be a function');
var fired = false;
function g() {
this.removeListener(type, g);
if (!fired) {
fired = true;
listener.apply(this, arguments);
}
}
g.listener = listener;
this.on(type, g);
return this;
};
// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener = function(type, listener) {
var list, position, length, i;
if (!isFunction(listener))
throw TypeError('listener must be a function');
if (!this._events || !this._events[type])
return this;
list = this._events[type];
length = list.length;
position = -1;
if (list === listener ||
(isFunction(list.listener) && list.listener === listener)) {
delete this._events[type];
if (this._events.removeListener)
this.emit('removeListener', type, listener);
} else if (isObject(list)) {
for (i = length; i-- > 0;) {
if (list[i] === listener ||
(list[i].listener && list[i].listener === listener)) {
position = i;
break;
}
}
if (position < 0)
return this;
if (list.length === 1) {
list.length = 0;
delete this._events[type];
} else {
list.splice(position, 1);
}
if (this._events.removeListener)
this.emit('removeListener', type, listener);
}
return this;
};
EventEmitter.prototype.removeAllListeners = function(type) {
var key, listeners;
if (!this._events)
return this;
// not listening for removeListener, no need to emit
if (!this._events.removeListener) {
if (arguments.length === 0)
this._events = {};
else if (this._events[type])
delete this._events[type];
return this;
}
// emit removeListener for all listeners on all events
if (arguments.length === 0) {
for (key in this._events) {
if (key === 'removeListener') continue;
this.removeAllListeners(key);
}
this.removeAllListeners('removeListener');
this._events = {};
return this;
}
listeners = this._events[type];
if (isFunction(listeners)) {
this.removeListener(type, listeners);
} else if (listeners) {
// LIFO order
while (listeners.length)
this.removeListener(type, listeners[listeners.length - 1]);
}
delete this._events[type];
return this;
};
EventEmitter.prototype.listeners = function(type) {
var ret;
if (!this._events || !this._events[type])
ret = [];
else if (isFunction(this._events[type]))
ret = [this._events[type]];
else
ret = this._events[type].slice();
return ret;
};
EventEmitter.prototype.listenerCount = function(type) {
if (this._events) {
var evlistener = this._events[type];
if (isFunction(evlistener))
return 1;
else if (evlistener)
return evlistener.length;
}
return 0;
};
EventEmitter.listenerCount = function(emitter, type) {
return emitter.listenerCount(type);
};
function isFunction(arg) {
return typeof arg === 'function';