(function (global, factory) {
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  typeof define === 'function' && define.amd ? define(['exports'], factory) :
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}(this, (function (exports) { 'use strict';

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    emit: function emit(name) {
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      } // Remove event from queue to prevent memory leak
      // Suggested by https://github.com/lazd
      // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910


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  function _arrayWithoutHoles(arr) {
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  var iterableToArray = _iterableToArray;

  function _nonIterableSpread() {
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  function errorHandle(condition, msg) {
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  function mergeTypedArrays(a, b) {
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  function sleep() {
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  function getUint8Sum(arr) {
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  function log(name) {
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    mergeTypedArrays: mergeTypedArrays,
    sleep: sleep,
    getUint8Sum: getUint8Sum,
    string2Bin: string2Bin,
    bin2String: bin2String,
    bin2Float: bin2Float,
    bin2Boolean: bin2Boolean,
    log: log,
    readUint8: readUint8
  });

  function checkSupport(options) {
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        url = options.url;
    errorHandle(mediaElement instanceof HTMLVideoElement, 'The first parameter is not a video tag element');
    errorHandle(typeof url === 'string' || url instanceof File && url.type === 'video/x-flv', 'The second parameter is not a string type or flv file');
    var MP4H264MimeCodec = 'video/mp4; codecs="avc1.42001E, mp4a.40.2"';
    var canPlay = mediaElement.canPlayType(MP4H264MimeCodec);
    errorHandle(window.MediaSource && window.MediaSource.isTypeSupported(MP4H264MimeCodec) && (canPlay === 'probably' || canPlay === 'maybe'), "Unsupported MIME type or codec: ".concat(MP4H264MimeCodec));
    errorHandle(typeof window.Promise === 'function', "Unsupported 'Promise' method");
    errorHandle(typeof window.fetch === 'function', "Unsupported 'fetch' method");
    errorHandle(typeof window.Worker === 'function', "Unsupported 'Worker' method");
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  /*#__PURE__*/
  function () {
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        worker.kill();
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      key: "fnToStr",
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      key: "create",
      value: function create(fn) {
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        var objectURL = window.URL.createObjectURL(blob);
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        worker.kill = function () {
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        worker.post = function (args) {
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            worker.onerror = function (error) {
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            worker.postMessage(args);
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        return worker;
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  var config = {
    mediaSource: {
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      methods: ['addSourceBuffer', 'endOfStream', 'removeSourceBuffer', 'clearLiveSeekableRange', 'setLiveSeekableRange'],
      events: ['sourceclose', 'sourceended', 'sourceopen']
    },
    sourceBuffer: {
      propertys: ['mode', 'updating', 'buffered', 'timestampOffset', 'audioTracks', 'videoTracks', 'textTracks', 'appendWindowStart', 'appendWindowEnd', 'trackDefaults'],
      methods: ['appendBuffer', 'appendStream', 'abort', 'remove'],
      events: ['abort', 'error', 'update', 'updateend', 'updatestart']
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      events: ['addsourcebuffer', 'removesourcebuffer']
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  var CreatMediaSource =
  /*#__PURE__*/
  function () {
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      value: function creatUrl() {
        var _this$flv = this.flv,
            mediaElement = _this$flv.options.mediaElement,
            destroyEvents = _this$flv.events.destroyEvents;
        this.mediaSource = new MediaSource();
        var url = URL.createObjectURL(this.mediaSource);
        destroyEvents.push(function () {
          URL.revokeObjectURL(url);
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        mediaElement.src = url;
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      key: "eventBind",
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        var proxy = this.flv.events.proxy;
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          proxy(_this.mediaSource, eventName, function (event) {
            _this.flv.emit("mediaSource:".concat(event.type), event);
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          proxy(_this.mediaSource.activeSourceBuffers, eventName, function (event) {
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  function _arrayWithHoles(arr) {
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  var arrayWithHoles = _arrayWithHoles;

  function _iterableToArrayLimit(arr, i) {
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    var _n = true;
    var _d = false;
    var _e = undefined;

    try {
      for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
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    return _arr;
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  var iterableToArrayLimit = _iterableToArrayLimit;

  function _nonIterableRest() {
    throw new TypeError("Invalid attempt to destructure non-iterable instance");
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  var nonIterableRest = _nonIterableRest;

  function _slicedToArray(arr, i) {
    return arrayWithHoles(arr) || iterableToArrayLimit(arr, i) || nonIterableRest();
  }

  var slicedToArray = _slicedToArray;

  function fetchStream(flv, url) {
    flv.emit('flvFetchStart');
    fetch(url).then(function (response) {
      errorHandle(response.ok && response.status >= 200 && response.status <= 299, "".concat(response.status, " ").concat(response.statusText));
      var contentType = response.headers.get('content-type');
      errorHandle(contentType.includes('x-flv'), 'The resource does not seem to be a flv file');
      return new Response(new ReadableStream({
        start: function start(controller) {
          var reader = response.body.getReader();
          flv.on('destroy', function () {
            reader.cancel();
          });
          flv.on('readerCancel', function () {
            reader.cancel();
          });

          (function read() {
            reader.read().then(function (_ref) {
              var done = _ref.done,
                  value = _ref.value;

              if (done) {
                flv.emit('flvFetchEnd');
                controller.close();
                return;
              }

              flv.emit('flvFetching', new Uint8Array(value));
              controller.enqueue(value);
              read();
            }).catch(function (error) {
              throw error;
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          })();
        },
        cancel: function cancel() {
          flv.emit('flvFetchCancel');
        }
      }));
    });
  }

  function readFile(flv, file) {
    flv.emit('flvFetchStart');
    var proxy = flv.events.proxy;
    var reader = new FileReader();
    proxy(reader, 'load', function (e) {
      var buffer = e.target.result;
      var uint8 = new Uint8Array(buffer);
      flv.emit('flvFetchEnd', uint8);
    });
    reader.readAsArrayBuffer(file);
  }

  function parseScripTag(scripTagBody) {
    var readScripTag = readUint8(scripTagBody);
    var metadata = Object.create(null);
    var amf1 = Object.create(null);
    var amf2 = Object.create(null);

    var _readScripTag = readScripTag(1);

    var _readScripTag2 = slicedToArray(_readScripTag, 1);

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    amf1.size = getUint8Sum(readScripTag(2));
    amf1.string = bin2String(readScripTag(amf1.size));

    var _readScripTag3 = readScripTag(1);

    var _readScripTag4 = slicedToArray(_readScripTag3, 1);

    amf2.type = _readScripTag4[0];
    errorHandle(amf2.type === 8, "AMF: [amf1] type expect 8, but got ".concat(amf2.type));
    amf2.size = getUint8Sum(readScripTag(4));
    amf2.metaData = Object.create(null);

    function getValue(type) {
      var value = null;

      if (type !== undefined) {
        switch (type) {
          case 0:
            value = bin2Float(readScripTag(8));
            break;

          case 1:
            value = bin2Boolean(readScripTag(1)[0]);
            break;

          case 2:
            {
              var valueLength = getUint8Sum(readScripTag(2));
              value = bin2String(readScripTag(valueLength));
              break;
            }

          case 3:
            {
              value = Object.create(null);
              var endObject = false;

              while (!endObject && readScripTag.index < scripTagBody.length) {
                var nameLength = getUint8Sum(readScripTag(2));
                var name = bin2String(readScripTag(nameLength));
                var _type = readScripTag(1)[0];

                if (name) {
                  value[name] = getValue(_type);
                }

                if (_type === 9) {
                  endObject = true;
                }
              }

              break;
            }

          case 8:
            {
              value = Object.create(null);
              var endArray = false;

              while (!endArray && readScripTag.index < scripTagBody.length) {
                var _nameLength = getUint8Sum(readScripTag(2));

                var _name = bin2String(readScripTag(_nameLength));

                var _type2 = readScripTag(1)[0];

                if (_name) {
                  value[_name] = getValue(_type2);
                }

                if (_type2 === 9) {
                  endArray = true;
                }
              }

              break;
            }

          case 10:
            {
              var _valueLength = getUint8Sum(readScripTag(4));

              value = [];

              for (var index = 0; index < _valueLength; index += 1) {
                var itemType = readScripTag(1)[0];
                value.push(getValue(itemType));
              }

              break;
            }

          case 12:
            {
              var _valueLength2 = getUint8Sum(readScripTag(4));

              value = bin2String(readScripTag(_valueLength2));
              break;
            }

          default:
            console.log(readScripTag(scripTagBody.length - readScripTag.index - 1));
            errorHandle(false, "AMF: Unknown metaData type: ".concat(type));
            break;
        }
      }

      return value;
    }

    while (readScripTag.index < scripTagBody.length) {
      var nameLength = getUint8Sum(readScripTag(2));
      var name = bin2String(readScripTag(nameLength));
      var type = readScripTag(1)[0];

      if (name) {
        amf2.metaData[name] = getValue(type);
      }
    }

    errorHandle(readScripTag.index === scripTagBody.length, 'AMF: Seems to be incompletely parsed');
    errorHandle(amf2.size === Object.keys(amf2.metaData).length, 'AMF: [amf2] length does not match');
    metadata.amf1 = amf1;
    metadata.amf2 = amf2;
    return metadata;
  }

  var FlvParse =
  /*#__PURE__*/
  function () {
    function FlvParse(flv) {
      var _this = this;

      classCallCheck(this, FlvParse);

      this.flv = flv;
      var _flv$options = flv.options,
          url = _flv$options.url,
          debug = _flv$options.debug;
      this.uint8 = new Uint8Array(0);
      this.index = 0;
      this.header = null;
      this.scripTag = null;
      this.tags = [];
      this.done = false;
      flv.on('flvFetchStart', function () {
        if (debug) {
          console.log('[flv-fetch-start]', url);
        }
      });
      flv.on('flvFetchCancel', function () {
        if (debug) {
          console.log('[flv-fetch-cancel]');
        }
      });
      flv.on('flvFetching', function (uint8) {
        _this.uint8 = mergeTypedArrays(_this.uint8, uint8);

        _this.parse();
      });
      flv.on('flvFetchEnd', function (uint8) {
        if (debug) {
          console.log('[flv-fetch-end]');
        }

        _this.done = true;

        if (uint8) {
          _this.uint8 = uint8;
          _this.index = 0;
          _this.header = null;
          _this.scripTag = null;
          _this.tags = [];

          _this.parse();
        }

        flv.emit('flvParseDone');

        if (debug) {
          console.log('[flv-parse-done]');
        }
      });

      if (typeof url === 'string') {
        fetchStream(flv, url);
      } else {
        readFile(flv, url);
      }
    }

    createClass(FlvParse, [{
      key: "parse",
      value: function parse() {
        var debug = this.flv.options.debug;

        if (this.uint8.length >= 13 && !this.header) {
          var header = Object.create(null);
          header.signature = bin2String(this.read(3));

          var _this$read = this.read(1);

          var _this$read2 = slicedToArray(_this$read, 1);

          header.version = _this$read2[0];

          var _this$read3 = this.read(1);

          var _this$read4 = slicedToArray(_this$read3, 1);

          header.flags = _this$read4[0];
          header.headersize = getUint8Sum(this.read(4));
          this.header = header;
          this.read(4);
          this.flv.emit('flvParseHeader', this.header);

          if (debug) {
            console.log('[flv-parse-header]', this.header);
          }
        }

        while (this.index < this.uint8.length) {
          var tag = Object.create(null);

          var _this$read5 = this.read(1);

          var _this$read6 = slicedToArray(_this$read5, 1);

          tag.tagType = _this$read6[0];
          tag.dataSize = getUint8Sum(this.read(3));
          tag.timestamp = this.read(4);
          tag.streamID = this.read(3);
          tag.body = this.read(tag.dataSize);
          this.tags.push(tag);
          this.read(4);

          switch (tag.tagType) {
            case 18:
              this.scripTag = parseScripTag(tag.body);
              this.flv.emit('parseScripTag', this.scripTag);

              if (debug) {
                console.log('[flv-parse-scrip-tag]', this.scripTag);
              }

              break;

            default:
              break;
          }

          this.flv.emit('flvParseTag', tag);
        }
      }
    }, {
      key: "read",
      value: function read(length) {
        var tempUint8 = new Uint8Array(length);

        for (var i = 0; i < length; i += 1) {
          tempUint8[i] = this.uint8[this.index];
          this.index += 1;
        }

        return tempUint8;
      }
    }]);

    return FlvParse;
  }();

  var id = 0;

  var Flv =
  /*#__PURE__*/
  function (_Emitter) {
    inherits(Flv, _Emitter);

    function Flv(options) {
      var _this;

      classCallCheck(this, Flv);

      _this = possibleConstructorReturn(this, getPrototypeOf(Flv).call(this));
      _this.options = Object.assign({}, Flv.DEFAULTS, options);
      checkSupport(_this.options);
      _this.events = new EventProxy(assertThisInitialized(assertThisInitialized(_this)));
      _this.workers = new CreatWorker(assertThisInitialized(assertThisInitialized(_this)));
      _this.mediaSource = new CreatMediaSource(assertThisInitialized(assertThisInitialized(_this)));
      _this.flvData = new FlvParse(assertThisInitialized(assertThisInitialized(_this)));
      id += 1;
      _this.id = id;
      Flv.instances.push(assertThisInitialized(assertThisInitialized(_this)));
      return _this;
    }

    createClass(Flv, [{
      key: "destroy",
      value: function destroy() {
        this.events.destroy();
        this.workers.killAll();
        Flv.instances.splice(Flv.instances.indexOf(this), 1);
        this.emit('destroy');
      }
    }], [{
      key: "DEFAULTS",
      get: function get() {
        return {
          mediaElement: '',
          url: '',
          debug: false
        };
      }
    }, {
      key: "version",
      get: function get() {
        return '1.0.6';
      }
    }, {
      key: "config",
      get: function get() {
        return config;
      }
    }, {
      key: "utils",
      get: function get() {
        return utils;
      }
    }]);

    return Flv;
  }(tinyEmitter);

  Object.defineProperty(Flv, 'instances', {
    value: []
  });
  window.Flv = Flv;

  exports.default = Flv;

  Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=artplayer-plugin-flv.js.map