This book is for programmers who want to learn about real-time communication and utilize the full potential of WebRTC. It is assumed that you have working knowledge of setting up a basic telecom infrastructure as well as basic programming and scripting knowledge.

This book is a stepbystep projectbased guide that aims to teach you how to develop your own web applications and services with WebRTC in a concise, practical manner.This book will be perfect for you if you are a WebRTC developer and want to build complex WebRTC applications and projects, or if you want to gain practical experience in developing web applications, advanced WebRTC media handling, server and client signaling, call flows, or thirdparty integration. It is essential tohave prior knowledge of building simple applications using WebRTC.

If you are a JavaScript developer with a basic knowledge of WebRTC and software development, but want to explore how to use it in more depth, this book is for you.

本书采用由浅入深的方式介绍WebRTC音视频开发技术，分为三篇，共15章，主要内容如下。第一篇，基本概念（第1～2章），包括WebRTC技术发展历史，分析WebRTC整体架构及其核心API，分析WebRTC通话原理，介绍媒体协商、网络协商等基本概念，介绍NAT、SDP、ICE、STUN以及TURN协议。第二篇，基础应用（第3～11章），包括访问设备、音视频设置、媒体流与轨道、媒体录制、连接建立过程以及数据通道等应用方法。通过学习本篇内容，读者可以熟练掌握WebRTC的常用接口。第三篇，综合案例（第12～15章），主要通过一个一对一的视频通话案例将前面所学知识串起来。客户端实现了画面渲染、声音控制、视频控制、大小视频展示等功能，服务器端实现了信令处理服务器以及中转数据服务器。

弗雷德里克•勒努瓦 哲学家、社会学家， 法国社会科学高等学院学者， 法国文化频道《天空之根》的制作人之一， 所著《世界的灵魂》《幸福，一次哲学之旅》等书被翻译成二十多种语言。

Squid is the most popular Web caching software in use today, and it works on a variety of platforms including Linux, FreeBSD, and Windows. Squid improves network performance by reducing the amount of bandwidth used when surfing the Web. It makes web pages load faster and can even reduce the load on your web server. By caching and reusing popular web content, Squid allows you...(展开全部)

An indispensable guide for grad students and academics who want to find fulfilling careers outside higher education An estimated ninety-three percent of graduate students in the humanities and social sciences won't get a tenure-track job, yet many still assume that a tenured professorship is the only successful outcome for a PhD. With the academic job market in such crisis, Lea...(展开全部)

As a Packt Beginner's Guide, the book is packed with clear step-by-step instructions for performing the most useful tasks, getting you up and running quickly, and learning by doing. This book assumes no existing experience with Hadoop or cloud services. It assumes you have familiarity with a programming language such as Java or Ruby but gives you the needed background on the other topics.

Blockchain applications provide a single-shared ledger to eliminate trust issues involving multiple stakeholders. It is the main technical innovation of Bitcoin, where it serves as the public ledger for Bitcoin transactions.Blockchain Developer's Guide takes you through the electrifying world of blockchain technology. It begins with the basic design of a blockchain and elaborates concepts, such as Initial Coin Offerings (ICOs), tokens, smart contracts, and other related terminologies. You will then explore the components of Ethereum, such as Ether tokens, transactions, and smart contracts that you need to build simple DApps.Blockchain Developer's Guide also explains why you must specifically use Solidity for Ethereum-based projects and lets you explore different blockchains with easy-to-follow examples. You will learn a wide range of concepts - beginning with cryptography in cryptocurrencies and including ether security, mining, and smart contracts. You will learn how to use web sockets and various API services for Ethereum. By the end of this Learning Path, you will be able to build efficient decentralized applications.This Learning Path includes content from the following Packt products:Blockchain Quick Reference by Brenn Hill, Samanyu Chopra, Paul Valencourt.Building Blockchain Projects by Narayan Prusty.