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Learning WebRTC

By : Daniel M. Ristic
Book Image

Learning WebRTC

By: Daniel M. Ristic

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Learning WebRTC
Daniel M. Ristic
Jun, 2015 | 186 pages
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Table of Contents (16 chapters)
Learning WebRTC
Learning WebRTC
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with WebRTC
Getting Started with WebRTC
Audio and video communication today
Enabling audio and video on the Web
Creating web standards
Using WebRTC in your browser
Applications enabled by WebRTC
Self-test questions
Summary
2
Getting the User's Media
Getting the User's Media
Getting access to media devices
Constraining the media stream
Handling multiple devices
Modifying the media stream
Self-test questions
Summary
3
Creating a Basic WebRTC Application
Creating a Basic WebRTC Application
Understanding UDP transport and real-time transfer
The WebRTC API
Building a basic WebRTC application
Running your first WebRTC application
Self-test questions
Summary
4
Creating a Signaling Server
Creating a Signaling Server
Building a signaling server
Setting up our environment
Getting a connection
Identifying users
Initiating a call
Answering a call
Handling ICE candidates
Hanging up a call
Complete signaling server
Signaling in the real world
Self-test questions
Summary
5
Connecting Clients Together
Connecting Clients Together
The client application
Setting up the page
Getting a connection
Logging in to the application
Initiating a call
Hanging up a call
A complete WebRTC client
Improving the application
Self-test questions
Summary
6
Sending Data with WebRTC
Sending Data with WebRTC
Stream Control Transmission Protocol and data transportation
The RTCDataChannel object
Encryption and security
Adding text-based chat
Use cases
Self-test questions
Summary
7
File Sharing
File Sharing
Getting a file with the File API
Breaking down a file into chunks
Putting it together on the other side
Showing progress to the user
Self-test questions
Summary
8
Advanced Security and Large-scale Optimization
Advanced Security and Large-scale Optimization
Securing the signaling server
Supporting mobile devices
Introduction to mesh networking
Video conferencing with more users
The future of conference calls
Self-test questions
Summary
Answers to Self-test Questions
Answers to Self-test Questions
Chapter 1, Getting Started with WebRTC
Chapter 2, Getting the User's Media
Chapter 3, Creating a Basic WebRTC Application
Chapter 4, Creating a Signaling Server
Chapter 5, Connecting Clients Together
Chapter 6, Sending Data with WebRTC
Chapter 7, File Sharing
Chapter 8, Advanced Security and Large-scale Optimization
Index
Index

Chapter 2. Getting the User's Media

Obtaining a live video and audio feed from a user's webcam and microphone is the first step to creating a communication platform on WebRTC. This has traditionally been done through browser plugins, but we will use the getUserMedia API to do this all in JavaScript.

In this chapter, we will cover the following topics:

  • Getting access to media devices

  • Constraining the media stream

  • Handling multiple devices

  • Modifying the stream data

Previous Section
End of Section 1
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