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mStar

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Development started with the Java Multi User Environment ... Experimenting with different video/audio codecs. Switch from Java Media Framework to own code ... – PowerPoint PPT presentation

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Title: mStar


1
  • mStar
  • Status and Future Plans
  • Peter Parnes
  • LTU-CDT/Marratech
  • Roxy Workshop 980921-23

2
Overview
  • Background
  • History
  • Current Status
  • Future Plans
  • Summary

3
Background and History - jMUE
  • Development started with the Java Multi User
    Environment - jMUE in early 95 as a test of Oak
    and Java.
  • Alpha-Java
  • Supported shared whiteboard, text-talk,
    membership and user status information
  • Applet and Web based
  • Development dropped when Beta-Java was released
    in August 95

4
mStar--
  • Development restarted with a new architecture in
    late 95
  • mWB
  • mWeb
  • mMOD
  • mChat
  • Later mDesk
  • In mid 97 the name mStar was coined.

5
mStar until Summer 98
  • The CDT mStar system
  • mStar relies on Vat/Vic for audio and video
    distribution and Netscape for slides.
  • Supports
  • VCR, Web-presentations, Whiteboard, prototype
    Java audio application, chat, vote, wave
    un/reliable transportation of data
  • 115K lines of Java code
  • Built around a very nice agent architecture

6
mStar.
  • Complicated user interface
  • a techie system
  • Only Solaris support (some Wintel support added
    during the spring of 98)
  • No good installation procedure
  • Hard to administrate and upgrade

7
mStar
  • Over the years a product demand have appeared
  • Thus the creation of the company Marratech AB
    which now holds the exploitation rights of the
    system.
  • mStar is currently being modified into a more
    product like system.
  • All need for external programs removed.

8
Marratech
  • Spin-off from LTU's Centre for Distance-spanning
    Technology (CDT)
  • Financed by venture capital from Slottsbacken.
  • Main office in Luleå and sales office in
    Stockholm.
  • Mission Commercialise and distribute
    conferencing software utilising IP Multicast
  • First market segment IT-Mature Scandinavian
    Companies.

9
Marratech mStar
  • Divided into a number of products
  • mStar Player
  • Target media-broadcasts
  • mPlayer, mTransmitter and mSessionEditor
  • mStar Pro
  • Target symmetric communication
  • mVideo, mSessionEditor

10
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11
Marratech mStar...
  • mStar Multimedia Server
  • Target recording and playback of sessions
  • mRecorder and mServer
  • mStar Multicast Tunnel
  • mStar Manager
  • Target control and management of mStar
    applications
  • mManager

12
Marratech mStar Status
  • mStar Player 1.1 released
  • mStar Pro beta4 released
  • mStar Multimedia Server and mManager under
    development
  • Primary target platform is currently Wintel
  • Does not rely on external products and the UI is
    much better (but still needs a lot of work)

13
Work under the Surface
  • Incorporation of heterogeneous networks
  • mTunnel
  • mVideo uses low bandwidth JPEG still images to
    create a live electronic corridor
  • Experimenting with different video/audio codecs
  • Switch from Java Media Framework to own code

14
Summary
  • Work started in early 95 - jMUE
  • mStar developed extensively within CDT
  • Created very advanced mStar prototype
  • Marratech created in mid 98
  • Developing mStar products

15
Questions?
  • peppar_at_cdt.luth.se
  • http//www.cdt.luth.se/peppar/
  • http//www.cdt.luth.se/mStar/
  • http//www.marratech.com/
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