videojs-contrib-eme/es5/utils.js

Supports Encrypted Media Extensions for playback of encrypted content in Video.js

'use strict';

Object.defineProperty(exports, '__esModule', {
  value: true
});
var stringToUint16Array = function stringToUint16Array(string) {
  // 2 bytes for each char
  var buffer = new ArrayBuffer(string.length * 2);
  var array = new Uint16Array(buffer);

  for (var i = 0; i < string.length; i++) {
    array[i] = string.charCodeAt(i);
  }

  return array;
};

exports.stringToUint16Array = stringToUint16Array;
var uint8ArrayToString = function uint8ArrayToString(array) {
  return String.fromCharCode.apply(null, new Uint16Array(array.buffer));
};

exports.uint8ArrayToString = uint8ArrayToString;
var getHostnameFromUri = function getHostnameFromUri(uri) {
  var link = document.createElement('a');

  link.href = uri;
  return link.hostname;
};

exports.getHostnameFromUri = getHostnameFromUri;
var arrayBuffersEqual = function arrayBuffersEqual(arrayBuffer1, arrayBuffer2) {
  if (arrayBuffer1 === arrayBuffer2) {
    return true;
  }

  if (arrayBuffer1.byteLength !== arrayBuffer2.byteLength) {
    return false;
  }

  var dataView1 = new DataView(arrayBuffer1);
  var dataView2 = new DataView(arrayBuffer2);

  for (var i = 0; i < dataView1.byteLength; i++) {
    if (dataView1.getUint8(i) !== dataView2.getUint8(i)) {
      return false;
    }
  }

  return true;
};

exports.arrayBuffersEqual = arrayBuffersEqual;
var arrayBufferFrom = function arrayBufferFrom(bufferOrTypedArray) {
  if (bufferOrTypedArray instanceof Uint8Array || bufferOrTypedArray instanceof Uint16Array) {
    return bufferOrTypedArray.buffer;
  }

  return bufferOrTypedArray;
};
exports.arrayBufferFrom = arrayBufferFrom;