Level 4, 122 Castlereagh Street Sydney NSW 2000 Ph. 02 9261 4411 Fax. 02 9261 4277
At this month's meeting, Conrad Parker will be giving a talk on "Building Dynamic Video Webs"; the abstract follows. This should be an interesting example of the issues and tradeoffs involved in using PostgreSQL to store video content.
As usual, if you'd like to present a talk at a future meeting of the Sydney PUG, get in touch with Anand, Gavin or myself.
Regards,
Neil
This session shows you how to use familiar server-side scripting to build dynamic, interactive video webs. You can use CGI scripting and database backends to provide customization and personalization of video content on an unmodified web server. Using normal scripting languages, you can create hyperlinks into and out of video and manipulate tracks of timed XML metadata.
Topics covered:
* Learn how to provide annotated video in response to simple
form-input CGIs * Become familiar with current technologies for video surfing,
and how these interoperate with familiar web browsing* Learn how to customize and personalize webs of video content
These techniques can be applied to many languages. The session will give
examples of server-side scripting with pyannodex[0], a python interface for dynamically compositing and querying Annodex media.
Annodex[1] is an open standards based technology that extends the World Wide Web's hyperlinking, searching, and compositing infrastructure to time-continuous data, enabling video surfing, searching for clips of audio and video files using ordinary Web search engines, and on-the-fly composition of a video on a Web server from previously annodexed clips.
Annodex media is compatible with many existing media frameworks including Microsoft's DirectShow and the open source players VLC[2] and xine[3]. However it is best browsed with the Annodex Firefox Extension[4], an open source, cross-platform application developed in javascript and XUL for Mozilla Firefox. Apart from the general CGI techniques covered in this session, Annodex media can most simply be served out using mod_annodex[5], a module for Apache httpd providing timed URI handling and CMML pre-processing.
[0] http://nofx.cse.unsw.edu.au/code/pyannodex.pml [1] http://www.annodex.net/ [2] http://www.videolan.org/ [3] http://www.xinehq.de/ [4] http://www.annodex.net/software/AnnodexFirefoxExtension/ [5] http://www.annodex.net/software/mod_annodex/ -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
