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  • Book Overview & Buying WebRTC Cookbook
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WebRTC Cookbook

WebRTC Cookbook

By : Andrii Sergiienko
5 (1)
Buy this Book
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WebRTC Cookbook

WebRTC Cookbook

5 (1)
By: Andrii Sergiienko
Buy this Book

Overview of this book

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.
Table of Contents (10 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Peer Connections
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1. Peer Connections
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Introduction
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Building a signaling server in Erlang
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Building a signaling server in Java
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Detecting WebRTC functions supported by a browser
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Making and answering calls
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Implementing a chat using data channels
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Implementing a chat using a signaling server
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Configuring and using STUN
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Configuring and using TURN
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2. Supporting Security
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2. Supporting Security
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Introduction
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Generating a self-signed certificate
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Configuring a TURN server with authentication
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Configuring a web server to work over HTTPS
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Configuring a WebSockets proxy on the web server
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Configuring a firewall
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3. Integrating WebRTC
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3. Integrating WebRTC
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Introduction
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Integrating WebRTC with Asterisk
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Integrating WebRTC with FreeSWITCH
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Making calls from a web page
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Integration of WebRTC with web cameras
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4. Debugging a WebRTC Application
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4. Debugging a WebRTC Application
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Introduction
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Working with a WebRTC statistics API
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Debugging with Chrome
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Debugging TURN
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Debugging using Wireshark
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5. Working with Filters
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5. Working with Filters
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Introduction
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Working with colors and grayscale
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Working with brightness
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Working with contrast
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Working with saturation
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Working with hue
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Using the sepia filter
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Using the opacity filter
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Inverting colors
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Implementing the blur effect
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Implementing the dropped shadow effect
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Combining filters
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Custom video processing
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6. Native Applications
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6. Native Applications
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Introduction
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Building a customized WebRTC demo for iOS
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Compiling and running an original demo for iOS
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Compiling and running a demo for Android
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Building an OpenWebRTC library
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7. Third-party Libraries
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7. Third-party Libraries
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Introduction
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Building a video conference using SimpleWebRTC
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Creating an application using RTCMultiConnection
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Developing a simple WebRTC chat using PeerJS
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Making a simple video chat with rtc.io
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Using OpenTok to create a WebRTC application
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Creating a multiuser conference using WebRTCO
8
8. Advanced Functions
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8. Advanced Functions
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Introduction
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Visualizing a microphone's sound level
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Muting a microphone
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Pausing a video
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Taking a screenshot
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Streaming media
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Index
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Index

Visualizing a microphone's sound level

If your application works with audio and video (for example, you're developing a video conferencing service), it would be probably a good idea to add a live indication of the microphone sound level. Using this feature, peers can estimate and control their microphone's audio levels. So, in this recipe, we're implementing microphone activity indication.

Getting ready

This recipe is simple, and you will just need a text editor to create and edit HTML. To test this recipe, you should have a web server installed and configured—it is highly recommended to test the example via a web server rather than just on a local filesystem; otherwise, the web browser might block calls to the WebRTC API.

How to do it…

Perform the following steps:

  1. Create an HTML file and insert the following codes. Note that the important places are commented inline:

    <!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">

  2. Include the WebRTC adapter from Google...

CONTINUE READING
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Tech Concepts
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Programming languages
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WebRTC Cookbook
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