Crc32Probe.js•599 B
"use strict";
var GenericWorker = require("./GenericWorker");
var crc32 = require("../crc32");
var utils = require("../utils");
/**
* A worker which calculate the crc32 of the data flowing through.
* @constructor
*/
function Crc32Probe() {
GenericWorker.call(this, "Crc32Probe");
this.withStreamInfo("crc32", 0);
}
utils.inherits(Crc32Probe, GenericWorker);
/**
* @see GenericWorker.processChunk
*/
Crc32Probe.prototype.processChunk = function (chunk) {
this.streamInfo.crc32 = crc32(chunk.data, this.streamInfo.crc32 || 0);
this.push(chunk);
};
module.exports = Crc32Probe;