The aim of this project is wider than just creating directshow filters for xiph codecs. It's ultimate aim is to provide a comprehensive, easy to use SDK(Software Development Kit) for multiple platforms, with primary focus on windows initially, for developing applications which use xiph.org technologies.
It aims to be a one-stop collection of all the tools and libraries required to quickly and easily develop ogg based applications, all to be licensed under a BSD license, so they can be freely used in open-source or commercial applications.
Current State
Besides the directshow filters which many people are familiar with. The source distribution also contains many useful tools, for debugging and validating ogg files, which build on multiple platforms. There is also a .NET media player class which can basically provide an "instant" media player in any .NET application, as well as an early implementation of an apache2 module which can provide server side seeking (currently only of annodex files, but soon also ogg files)
More information about the libraries and tools that are available in the source distribution can be found in the developers section
In the pipeline
Plans are also underway for a pocketPC version of the directshow filters, and in the future a complete set of quicktime plugins, as well as enhancing the server side seeking capabilities of the apache module.
Want to help ?
If you are interested in adding new tools, or libraries to this distribution, or improving the current libraries or directshow filters, your help would be greatly appreciated.
The most current source tree can always be found at Xiph SVN
You can send patches or bug reports to ogg@illiminable.com
Another way to help would be to work on the core xiph libraries. Xiph.org is always keen for new developers. From there you can get on the mailing list or join the irc channel.
You are also encouraged to create your own applications using this SDK or the xiph core libraries and let us know about it