1. VP Rhys Hawkins ANU Internet Futures/Grangenet A Video Consumer Service for the AccessGrid

2. Aims Reduce node operator workload! Ability to customize to suit a particular node AccessGrid integration Automatic Layout Improved user experience

3. In the beginning … VP precursor in ~July 2003 GStreamer OpenGL

4. Current Release VP 0.9.0 released August 2005 More user interface functionality More codecs (MPEG4, H263+, MJPEG) Improved architecture and standards compliance More scriptable

5. Architecture UCL common library VPMedia User Interface pyVP Scripts

6. Some definitions Source = 1 video stream Site = group of sources Source Layout = layout of sources within a Site Site Layout = layout of sites within the VP window

7. How Sources are Grouped With Source Grouping scripts Currently not configurable through the user interface Default is by CNAME which is roughly equivalent to by AccessGrid node Can change by editing startup scripts

8. Source Layout Several to choose from (~10) Write your own in Python

9. Source Layout Examples Grid 1 Row Prioritized

10. Source Layout Code Example http://sheriff.anu.edu.au/~rhys/VP/manual/index.html

11. Site Layout 8 to choose from Write your own (but API will likely change in the future)

12. Site Layout Examples GridThumbnails Blank Centre

13. Site Layout Code Example http://sheriff.anu.edu.au/~rhys/VP/manual/index.html

14. Custom Site Tile Sizes Similar to s, m, l keys in VIC but customizable Can be used in conjunction with Automatic Site Layouts for a hybrid layout Accessible through 0 – 9 keys

15. Custom Site Tile Size Example

16. The VP Roadmap Architecture will move towards C/C++ layer for network and video processing then SWIGed interface to Python. GUI replaced with wxPython VPC Integration QuickTime for MacOSX? Another dot release before end of year

17. Acknowledgements Hugh Fisher & Rod Harris Barz Hsu Yifan Lu Tom Uram & Eric Olson Various OS projects All the people who have provided feedback, testing, and ideas