A presentation at Vonage Campus in in San Francisco, CA, USA by Manik Sachdeva
The OpenTok API
Agenda ● ● ● ● VONAGE CONFIDENTIAL
What is OpenTok? The OpenTok platform makes it easy to embed high-quality real-time interactive video, voice, messaging, screen-sharing and more into web, mobile, and desktop apps. VONAGE CONFIDENTIAL
What is OpenTok? The platform includes client-side SDKs for web, iOS, Android, and Windows as well as server-side SDKs that wrap the OpenTok REST API. VONAGE CONFIDENTIAL
OpenTok Basics VONAGE CONFIDENTIAL
OpenTok Basics ● ● ● ● VONAGE CONFIDENTIAL
Session ● ● ● VONAGE CONFIDENTIAL
Types of Sessions ● ● Relayed ○ Relayed (Peer-to-Peer) - Media is streamed directly between clients. Good for remote areas that are not close to an OpenTok Media Router. Routed ○ Routed - Media is streamed through OpenTok’s SFU. This provides upload bandwidth savings for large calls and the ability to record (archive), broadcast, and dial out with SIP. VONAGE CONFIDENTIAL
Token ● ● ● ● ○ ○ ○ VONAGE CONFIDENTIAL
Publishing & Subscribing ● ● Publisher ○ Creator of the stream ○ Has the ability to publish audio or video only Subscriber ○ Receiver of the stream ○ Has the ability to subscribe to audio or video only VONAGE CONFIDENTIAL
Events ● Session Events ○ Connection Events ■ connectionCreated ■ connectionDestroyed ○ Stream Events ■ sessionConnected ■ streamCreated ■ streamDestroyed ■ sessionDisconnected ■ sessionReconnecting ■ sessionReconnected ■ streamPropertyChanged ○ Error Event ■ Error ○ Signal ○ Many more VONAGE CONFIDENTIAL
API Model Publish: patient phone camera+audio Publish: stethoscope audio stream Subscribe: doctor video stream Publish: doctor laptop camera+audio Subscribe: phone video stream Subscribe: stethoscope audio stream VONAGE CONFIDENTIAL
OpenTok Platform VONAGE CONFIDENTIAL
Supported Platforms ● ● ● ● ● ○ ● ● ● ● VONAGE CONFIDENTIAL
Supported Browsers ● ● ● ● ● ● VONAGE CONFIDENTIAL
Archiving (Recording) VONAGE CONFIDENTIAL
Types of Archives ● ○ ○ ● ○ VONAGE CONFIDENTIAL
Layout Control ● ● ● You can specify the layout of the videos when you start the archive and you can also update the layout when the archive is in progress Predefined Layouts ○ Best Fit ○ Picture in Picture ○ Vertical Presentation ○ Horizontal Presentation Custom Layouts using CSS VONAGE CONFIDENTIAL
Resolution Support ● ● Composed ○ 1280 x 720 ○ 640 x 480 Individual ○ Resolution captured by the camera VONAGE CONFIDENTIAL
Storing Archives ● ● ● AWS S3 Microsoft Azure … VONAGE CONFIDENTIAL
API Model Publish: patient phone camera+audio Publish: stethoscope audio stream Subscribe: doctor video stream Archives S3 / Azure Start Archive Publish: doctor laptop camera+audio Subscribe: phone video stream Subscribe: stethoscope audio stream VONAGE CONFIDENTIAL
Let’s build! https://github.com/msach22/opentok-vonage-campus VONAGE CONFIDENTIAL
In this workshop, you’ll learn how to add programmable voice and video to a web application using the OpenTok API. Using the OpenTok API, you will also be able to add screen sharing archiving (recording), and connecting to PSTN participants by integrating with Nexmo SIP Connect. Additionally, Manik will cover best practices on debugging the programmable voice & video using tools such as Playground and Session Inspector.
for free. You
can too.