Version 2.6 of the Vamp plugin SDK is now available.
http://www.vamp-plugins.org/
Vamp is a plugin API for audio analysis and feature extraction plugins
written in C or C++. Its SDK features an easy-to-use set of C++ classes
for plugin and host developers, a reference host implementation, example
plugins, and documentation. It is supported across Linux, OS/X, and
Windows.
A documentation guide to writing plugins using the Vamp SDK can be found
at
http://www.vamp-plugins.org/guide.pdf.
Version 2.6 is a bugfix and minor enhancement release. For more details,
see the changelog at
http://code.soundsoftware.ac.uk/projects/vamp-plugin-sdk/repository/entry/C…
Chris