node-media-server/src/session/base_session.js

A Node.js implementation of RTMP Server

// @ts-check
//
//  Created by Chen Mingliang on 23/11/30.
//  illuspas@msn.com
//  Copyright (c) 2023 Nodemedia. All rights reserved.
//

const crypto = require("crypto");

/**
 *
 * @returns {string} 
 */
function generateRandomId() {
  let result = Date.now().toString(36);
  const characters = "0123456789abcdefghijklmnopqrstuvwxyz";
  const charactersLength = characters.length;
  const randomValues = new Uint32Array(8);
  crypto.getRandomValues(randomValues);
  for (let i = 0; i < 8; i++) {
    result += characters[randomValues[i] % charactersLength];
  }
  return result;
}

class BaseSession {
  constructor() {
    this.id = generateRandomId();
    this.ip = "";
    this.protocol = "";
    this.streamHost = "";
    this.streamApp = "";
    this.streamName = "";
    this.streamPath = "";
    this.streamQuery = {};
    this.createTime = Date.now();
    this.endTime = 0;

    this.videoCodec = 0;
    this.videoWidth = 0;
    this.videoHeight = 0;
    this.videoFramerate = 0;
    this.videoDatarate = 0;
    this.audioCodec = 0;
    this.audioChannels = 0;
    this.audioSamplerate = 0;
    this.audioDatarate = 0;

    this.inBytes = 0;
    this.outBytes = 0;

    this.filePath = "";
  }

  /**
   * @abstract
   * @param {Buffer} buffer
   */
  sendBuffer = (buffer) => {
  };

  /**
   * @abstract
   */
  close = () => {

  };
}


module.exports = BaseSession;