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Mconf - BigBlueButton SummitAugust 28th 2011
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Mconf and the BigBlueButton Android Client
Authors:Felipe Cecagno
Leonardo Crauss Daronco
BigBlueButton Summit - August 28th 2011
Agenda1. About us + Mconf Overview (5 minutes)2. The Android client (10 minutes)
1. About us
About usPorto Alegre - Rio Grande do Sul - Brazil
About usInstitute of Informatics at UFRGS (http://inf.ufrgs.br/en/)Group: PRAV (http://inf.ufrgs.br/prav)
2. Overview
OverviewMconf - "Sistema de multiconferência paraacesso Interoperável web e móvel"
In English: multiconference system for interoperable access between web and mobile devices
Main objectives:● Provide a complete webconference environment● Integration with mobile devices● Usability● Open Source
OverviewThis project is supported by RNP.The "national network for research and education".
The project started in November 2010.The 1st phase will last 1 year.But it will possibly (hopefully) be extended:
● More 1, 2 or more years
http://www.rnp.br/
Google code, for docs and issue tracking:http://code.google.com/p/mconf/
GitHub, for code:https://github.com/mconf
Our mailing list, for anything else:[email protected]://groups.google.com/group/mconf-dev
Where to find us
Architecture
1. BigBlueButton
2. Mobile
3. Web portal
Mconf-Web
Mconf-Web is our web application that manages the meetings in BigBlueButton.It can be compared to the other integrations BBB has: Moodle, Sakai, Joomla, etc.
It's currently based on Global Plaza: An event based social network http://globalplaza.org
But we are thinking about remodeling it...
Mconf-Web
Developed in Ruby on Rails.
Two libraries (gems) also available:● bigbluebutton-api-ruby: BBB library for Ruby● bigbluebutton_rails: BBB library for Rails
Mconf-Web
Available at: http://mconf.inf.ufrgs.br
You can register and try it for free.Any kind of feedback is welcome!
3. BigBlueButton Android client
Overview● Goal: transparent interaction between desktop and mobile
users
● Developing a native Android application● First iniciative on building a mobile client
Architecture● flazr is a Java library which handles the RTMP
communication○ Support to Remote Shared Objects developed by our
team
● bbb-java is a client side Java API to interact with the BigBlueButton server
● bbb-android-core is a native Android library○ Mostly developed in Java - some code in C++○ Some code from the IVA project○ Integrated with Sipdroid to provide voice functionalities○ Uses FFmpeg for video encoding and decoding
Main functionalities● Public and private chat
Main functionalities● Voice interaction
○ Tap to speak
Main functionalities● Administrative actions
○ Assign presenter○ Kick user○ Lower hand○ Mute / unmute
Main functionalities● Video visualization (one at a time)
Main functionalities● Video capture and publish
BBB-Android and Mconf-MobileBBB-Android accesses directly the BigBlueButton server by a JSP demo application
● Can join freely all the running meetings, also as a moderator
● Needs to know the server address
Mconf-Mobile accesses the web portal● Same permissions as in the web portal● Can join only his own rooms, rooms from spaces that the
user is member and rooms from public spaces● Just needs to know the mconf.inf.ufrgs.br (or mconf.org)
BBB-Android and Mconf-Mobile
BBB-Android + Web portalJoin a meeting
● clicking on a hyperlink (in the device web browser)● bigbluebutton://
BBB-Android + Web portalJoin a meeting
● scanning a QR Code
BBB-Android and Mconf-Mobile
Compatible with Android 2.0 and above (~96,7%* of the devices)
Constantly tested on:● Samsung Galaxy S (Android 2.2)● Samsung Galaxy Tab (Android 2.2.1)● Motorola Milestone (Android 2.0.1)
Recommended: Android 2.2 or above
* http://developer.android.com/resources/dashboard/platform-versions.html on August 2011
BBB-Android and Mconf-Mobile
We maintain both English and Portuguese (BR) languages● It is automatically detected by the device● Easy to translate to others
BBB-Android security modelOn BigBlueButton 0.71a:
● JSP application removes the need of the security salt (!) On BigBlueButton 0.8 (under development):
● JSP application requires a checksum with a unique security salt per server
● Salt must be small enough to be entered in the device, probably a 5-char string
Mobile JSP applicationSupports the calls above:
● getMeetings● createMeeting● join
What's coming next?● Presentation module● Bugfixes● Big effort on usability and stability● Android Market (more frequent and easy updates)
How to contribute● Testing
○ Reporting bugs○ Describing new features or enhancements
● Sending feedback● Translating● Sending patches
Are you interested?● Find us on Google Code (http://code.google.com/p/mconf)● Contact us directly by e-mail ([email protected])
Thank you for your attention
Mconf and the BigBlueButton Android ClientBigBlueButton Summit - August 28th 2011
Authors:Felipe Cecagno
Leonardo Crauss Daronco
