webrtc

web real time communication platform

This is a ready to deploy webrtc SDK and SaaS for a customized and flexible communication and collaboration solution .

SDK

Architecture

The Solution primarily contains nodejs frameworks for hosting the project and webbsockets over socket.io to perform offer - answer handshake and share SDP (Session description protocol ).

Technologies used

1. WebRTC Web based real time communication framework. read more on webrtc

2. Node (v5.0.0) Asynchronous event driven JavaScript runtime

3. socket.io ( v0.9) Communication and signalling

Note : while its possible to use any prtotocol like SIP , XMPP , AJAX , JSON etc for this purpose , modifying thsi libabry will require a lot of rework . It would be advisble to start from apprtc directly in that case .

4. Grunt It is a task Runner and its used to automate running of command in gruntfile

grunt -verbose

Get Started

To run this project following steps need to be followed in that order :

1. get the project from github

git clone https://github.com/altanai/webrtc.git webrtc

2. install nvm ( node version manager )

sudo apt-get install nvm
nvm use v5.0.0

3. install npm and update the dependencies

It will read the package.json and update the dependencies in node_modules folder on project location

	sudo apt-get install npm
	npm install

4. Change ENV variables and Test

To change the ports for running the https server and rest server, goto env.json

{       "hostname"      : "host",        
		"enviornment"   : "local",        
		"host"        	: "localhost",
		"jsdebug"       :  true,          
		"httpsPort"		:  8086,
		"restPort"		:  8087,
        "extensionID"   : "elfbfompfpakbefoaicaeoabnnoihoac"
}

To run the tests

	npm test

5. Start up the Server

To start the Server in dev mode and stop the server as soon as Ctrl+ C is hit or the terminal widnow is closed .

	node webrtcserver.js

read more about node

To start the Server using npm start ( using package.json) , behaves same as earlier run using node. We use supervisor to restart the server incase of exceptions or new code .

	npm start

6. JS and CSS Libs

Make a webpage and give holders for video and button elements that SDK will use .

7. Configure

Create the webrtc dom object

var local={
        localVideo: "localVideo",
        videoClass:"",
        userDisplay:false,
        userMetaDisplay:false  
    };

    var remote={
        remotearr: ["video1"],
        remoteVideoCount: "unlimited",
        remoteVideoContainer : "rightVideo",
        videoClass:"",
        userDisplay:false,
        userMetaDisplay:false    
    };

    var webrtcdomobj= new WebRTCdom(
        local,remote
    );

Get session id

sessionid = init(true);

Create a session json object with turn credentials nd the session created from above step

set preference for the incoming and outgoing media connectection. Bydefault all are set to true .

    var incoming={
        audio:  true,
        video:  true,
        data:   true,
        screen: true
    };

    var outgoing={
        audio:  true,
        video:  true,
        data:   true,
        screen: true
    };

Set widgets and their properties . Currently available widgets are * Chat * Fileshare * Screen Record * Screen Share * Video Record * Snapshot * Draw on Canvas and Sync * Text Editor and Sync * Mute (audio amd video) * Reconnect

	var widgets={
	}

Initiate the webrtcdev contructor

    var webrtcdevobj = new WebRTCdev ( 
        session,  incoming,  outgoing ,  widgets
    );

Start the session

    startcall();

8. VOIP calls and conf

open tab on chrome or mozilla browser and add a link to the https server using nodejs script https://127.0.0.1:8086/multiparty_fullfeatures.html

Used Libs

Following are the additioanl libraries packed with the project

Gulp

Minify and concat the js and css files into minscripts

gulp

forever

Keeps running even when window is not active

cd WebCall
forever start webrtcserver.js

PM2

To start the Server using PM2 ( a process manager for nodejs)

License

MIT