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Getting Started with WebRTC
The document provides an overview of WebRTC technology, highlighting its applications in various fields such as augmented reality, biometric verification, and IoT. It outlines the architecture, capabilities, and browser support for WebRTC, as well as the tools and frameworks available for building applications. Additionally, it discusses the challenges associated with server-side implementations and multi-party conferencing.
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Getting Started with WebRTC
- 1. Getting started withWebRTC Chad Hart 12/10/2014 Scotch Streaming and Scaling 1
- 2. 12/10/2014 Scotch Streamingand Scaling 2 http://www.meetup.com/WebRTC-Boston/ Meetup #1 Links & Resources: goo.gl/UvbI27
- 3. 12/10/2014 Scotch Streamingand Scaling 3
- 4. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 4 IP Telephony + WebRTC Media Server PowerMedia™ XMS Multi-party conferencing InterworkingTranscoding Stream processing Person-to-machineRecording
- 5. Who uses WebRTCtoday? 12/10/2014 Scotch Streaming and Scaling 5
- 6. Who uses WebRTCtoday? 12/10/2014 Scotch Streaming and Scaling 6
- 7. Who uses WebRTCtoday?
- 8. Who uses WebRTCtoday? 12/10/2014 Scotch Streaming and Scaling 8
- 9. Who uses WebRTCtoday? 12/10/2014 Scotch Streaming and Scaling 9
- 10. Use case: AugmentedReality 12/10/2014 Scotch Streaming and Scaling 10
- 11. Use case: facialbiometric verification 12/10/2014 Scotch Streaming and Scaling 11
- 12. Use case: controllingrobots 12/10/2014 Scotch Streaming and Scaling http://www.tate.org.uk/whats-on/tate-britain/special-event/after-dark 12
- 13. Use case: dogtraining 12/10/2014 Scotch Streaming and Scaling 13 https://webrtchacks.com/javascript-dog-trainer/
- 14. Use case: peer-to-peerdata CDNs File Transfer Private Networks bitcoin Peer web-servers Internet of Things 12/10/2014 Scotch Streaming and Scaling 14 grimwire wearables, security, industrial machine vision, ???
- 15. 12/10/2014 Scotch Streamingand Scaling 15 WebRTC is on a lot of devices
- 16. WebRTC will havea lot of users 12/10/2014 Scotch Streaming and Scaling 16
- 17. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 17 WebRTC is world-class VoIP engine for free OPUS On2 Global IP Solutions .org Video Codec Google acquires On2 for $133 million VoIP Media Engine Google acquires Global IP Solutions for $68.2M Audio codec Opus - open, royalty-free, highly versatile standardized audio codec Open Source Communities
- 18. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 18 WebRTC is a Web and Internet Standard webrtc rtcweb http://www.w3.org/TR/webrtc/ https://tools.ietf.org/wg/rtcweb/
- 19. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 19 WebRTC is State-of-the-Art Technology Firewall/NAT Traversal • ICE/STUN/TURN • RTCP Multiplex • RTP Bundle Audio Codecs • Opus • G.711 Video Codecs • VP8, VP9 • H.264 Mandatory Encryption • DTLS Media Negotiation Signaling • Session Description Protocol
- 20. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 20 WebRTC is 3 JavaScript APIs (& Java) getUserMedia CreatePeer Connection Data Channel Creates a media connection (RTP) between 2 peers Grants access to local microphone, camera, or screen Allows the user to send arbitrary data between peers
- 21. WebRTC API Examples •webrtc.github.io/samples/src/content/getusermedia/resolution/ • webrtc.github.io/samples/src/content/peerconnection/pc1/ • webrtc.github.io/samples/src/content/datachannel/ 12/10/2014 Scotch Streaming and Scaling 21
- 22. Working with WebRTC 12/10/2014Scotch Streaming and Scaling 22
- 23. Browser Support 12/10/2014 ScotchStreaming and Scaling 23 iswebrtcreadyyet.com
- 24. Browser Support: WTF- No IE & Safari?? 12/10/2014 Scotch Streaming and Scaling 24 iswebrtcreadyyet.com Fallback to a plug-in or (ugh) Flash
- 25.
- 26. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 26 Many ways to work with WebRTC Level of effort Low-level source Frameworks, Tools, and SDKs Cloud API’s Amount of control Website Plug- ins & widgets
- 27. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 27 Building WebRTC from scratch – 2 options Official Build by Google Ericsson Lab’s OpenWebRTC
- 28. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 28 Build with tools Open Source Commercial Server-side libraries JavaScript libraries Mobile SDK’s Cross-platform frameworks Infrastructure elements
- 29. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 29 Consuming WebRTC API’s from the cloud Signaling Authentication Push Notifications SIP Gateway Transcoding STUN TURN Servers Low Latency Elasticity Recording Geographic redundancy Bandwidth Service monitoring Multi-party Identity
- 30. COMPANY CONFIDENTIAL ©COPYRIGHT 2013 DIALOGIC INC. ALL RIGHTS RESERVED. 30 Plug-ins for your web admin
- 31. 130+ tool vendors& major projects https://webrtchacks.com/vendor-directory/ 12/10/2014 Scotch Streaming and Scaling 31
- 32. Back-end Considerations • Servers •Signaling server • STUN/TURN • Media servers/processing • Gateways • Network • Bandwidth • Latency 12/10/2014 Scotch Streaming and Scaling 32
- 33. The hard partsof WebRTC as you grow Server-side • Defining signaling for your signaling server • TURN servers for NAT traversal • Multi-party video conferencing • Real-time transcoding • Interworking with existing telephony networks (gateways) Client-side • Mobile optimizations • Non-WebRTC browser support • Keeping up with browser updates 12/10/2014 Scotch Streaming and Scaling 33
- 34. COMPANY CONFIDENTIAL: ©COPYRIGHT 2015 DIALOGIC INC. ALL RIGHTS RESERVED. 34 TURN will relay your media media client Signaling Server TURN Server STUN Server client
- 35. COMPANY CONFIDENTIAL: ©COPYRIGHT 2015 DIALOGIC INC. ALL RIGHTS RESERVED. 35 Mesh does not Scale for Many Video Conferees 35 Full Mesh Clients get overloaded Encode costs more than decode Limited uplink bandwidth Inconsistent performance across participants
- 36. COMPANY CONFIDENTIAL: ©COPYRIGHT 2015 DIALOGIC INC. ALL RIGHTS RESERVED. 36 Media servers for scalable multi-party conferencing MCU SFU Multipoint Control Unit Selective Forwarding Unit
- 37. COMPANY CONFIDENTIAL: ©COPYRIGHT 2015 DIALOGIC INC. ALL RIGHTS RESERVED. 37 Core WebRTC Gateway & Peripheral Functions HTTP-to-SIP (H2S) Media GW Transcoder Web SIP SBC STUN Server TURN Server API Gateway Regulates API calls Provides media anchoring for NAT Traversal Tells a client what its IP address is Converts non- standard web signaling to SIP Web SDK/ Widget Mobile SDK/ Widget Kit for adding Calls to webpage Kit for adding Calls to native applications Converts one codec to another, trans-rates/sizing Encryption & transport interworking SIP interworking, media binding, and security
- 38. COMPANY CONFIDENTIAL: ©COPYRIGHT 2015 DIALOGIC INC. ALL RIGHTS RESERVED. 38 Example: Large, Web-Centric Network Architecture Web server SIP/IMS Network SIP Media ServerFirewall APIManager API Calls H2S Server Identity Server App Server App Server WSS server STUN/ TURN Internal REST APIs WebRTC Browser
- 39. Chad’s Favorite WebRTCResources • webrtcHacks • github.com/webrtc • WebRTC Experiment • html5rocks.com • webrtcweekly.com 12/10/2014 Scotch Streaming and Scaling 39
- 40.