Version 1.2 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.
Version 1.2 contains a further addition to the host extension classes introduced in 1.1: a buffering adapter that hosts may use to avoid having to negotiate the plugin's preferred input step and block sizes. This release also includes a Visual C++ project file as well as Makefiles tailored to Linux and OS/X.
Plugins and hosts remain 100% binary compatible with those built using the 1.0 version of the SDK.
Chris