Real-Time Applications

GridON: Grid Video Transcoding using User-Controlled Lightpaths

URL:
www.i2cat.net/i2cat/servlet/I2CAT.MainServlet?seccio=2
www.canarie.ca/canet4/uclp/igrid2005/demo.html

Contact:
Sergi Figuerola, i2CAT, Universitat Politécnica de Catalunya (UPC), Spain, sergi.figuerola @ i2cat.net

Collaborators:
i2CAT / UPC, Spain: Sergi Figuerola, Sebastia Sallent, Artur Serra, Jesús Alcober, Luis Ribes, Marisol Hurtado, Ramon Sanguesa, Eduard Grasa, Joaquin Recio, Vincente Diaz
Communications Research Centre, Canada: Michel Savoie

GridON is an application that converts raw SDI video to MPEG-2, using UCLP to create on-demand lightpaths to access appropriate remote computers during the process. GridON first uses UCLP to create an end-to-end connection between San Diego and Barcelona, where SDI film is sent to a “distribution grid center” and segmented into N fragments. Then UCLP is used to create an end-to-end connection between Barcelona and Ottawa; some of the N fragments are then shipped to the Communications Research Centre for conversion to MPEG-2, and then shipped back to Barcelona for reassembly. After the entire film is reassembled, it is sent to San Diego over the first connection provisioned by UCLP for display at iGrid. Last, GridON tells UCLP to tear down the end-to-end connections.

This application is part of the iGrid demo “World’s First Demonstration of X GRID Application Switching using User Controlled LightPaths.”