sthlmwebrtc #1 :: openwebrtc introduction

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CAPITALS

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OpenWebRTC and Bowser Introduction

Robert Swain, Ericsson Research

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Ericsson Internal | 2011-10-19 |

› Ericsson and WebRTC › What is OpenWebRTC? › What is Bowser? › Why Release OpenWebRTC as Open Source? › API › Architecture › What Can I Do with Them Now? › Future › How Does OpenWebRTC Impact WebRTC?

Overview

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› Prototyped WebRTC API ›  Iterations of WebRTC framework › First desktop browser with WebRTC support (prototype implemented in WebKit GTK+)

› First mobile browser with WebRTC support (Bowser for iOS/Android)

›  Internal projects and experiments – Back office support (OpenWebRTC works on Google Glass!) – Remote excavation (VERY low latency requirements)

Ericsson and WebRTC

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› WebRTC client framework › BSD 2-clause (“Simplified” BSD) › Modular, flexible, extensible, … › C/GObject, gobject-introspection and JavaScript › Build native applications › We plan to integrate OpenWebRTC into the WebKit GTK+ browser engine

what is OpenWebRTC?

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› The only iOS web browser supporting WebRTC › UIWebView

– Soon WKWebView

› OpenWebRTC ‘bridge’ – Start the bridge –  Inject the JavaScript to load the WebRTC API from the bridge

server

› Option for native rendering coming soon!

What is Bowser?

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› Second implementation › Standardization ›  Interoperability › Native applications › GStreamer

Why Release OpenWebRTC as Open Source?

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› Tried to minimize API - easier to add API than to take it away

› Newly-written so changes possible › Asynchronous ›  Introspected language bindings (Python, JavaScript and other languages supported with gobject-introspection)

› OpenWebRTC C API low-level and flexible › WebRTC API implemented in JavaScript – API is still changing and new API proposals exist

API

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Architecture – High-Level

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Architecture – Objects – ‘self-View’

OwrLocalMediaSource

(Video – Camera) OwrVideoRenderer

OwrLocalMediaSource

(Audio – Microphone) OwrAudioRenderer

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Architecture – Objects – Two-Way Audio/Video

OwrLocalMediaSource

(Video – Camera) OwrVideoRenderer

OwrLocalMediaSource

(Audio – Microphone)

OwrAudioRenderer OwrMediaSession

(Audio)

OwrMediaSession

(Video) OwrVideoRenderer

OwrTransportAgent

OwrRemoteMediaSource

OwrRemoteMediaSource

Network Network

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›  Interoperate with Chrome and Firefox › Bowser: WebRTC web applications on iOS › Develop cross-platform native WebRTC applications › Try out new ideas

– Modular, flexible design may allow you to try things in applications that you couldn’t do before

– Standardization ›  Easy-to-modify WebRTC API in JavaScript ›  Add new features for demonstration

What Can I Do with THem Now?

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›  In the pipeline – API documentation – Robustness (almost) – Device listing on all platforms (almost) – Native overlay video rendering (almost) – Hardware codecs (hardware decoding already in place on some

platforms) – Tutorials (some already done) – WebKit GTK+ integration – Raspberry Pi support – ORTC? – Other API?

› Contributions!

Future / Coming Soon

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› Completely independent implementation of the standard – May help finalizing WebRTC ‘1.0’ API –  Improve WebRTC ‘1.0’ API specification clarity

› Not tied to current WebRTC API › Focus on flexibility › Competition in the WebRTC ecosystem › Hardware codec support ›  iOS support

How Does OpenWebRTC Impact WebRTC?

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We’re hiring!

Media Protocols and Applications, Ericsson

Research

And One More Thing…

sthlmwebrtc #1 :: openwebrtc introduction

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