javascript - 使用 Node JS 将 Uint8Array 转换为 Stream

Question

将原生 JavaScript Uint8Array 转换为可读或转换 Stream 的最佳方法是什么？

我想出了如何将 Uint8Array 变成缓冲区，不确定这是否有帮助:

var uint8array = new Uint8Array();
var buffer = new Buffer(uint8array);

Answer 1

standard way将是用 _read 方法定义一个可读流:

var Stream = require('stream');

var myStream = new Stream.Readable();
var i = 0;
var data = [1, 2, 3, 4];

myStream._read = function(size) {
  var pushed = true;
  while (pushed && i < data.length) {
    pushed = this.push(data[i++]);
  }

  if (i === data.length) {
    this.push(null);
  }
};

myStream.pipe(somewhere);

但是，您也可以使用 event-stream的 readArray 方法:

var es = require('event-stream');
var data = [1, 2, 3, 4];
var myStream = es.readArray(data);

myStream.pipe(somewhere);