Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 123]

▼NVamp
▼NHostExt
CPluginBufferingAdapter
CPluginChannelAdapter
CPluginInputDomainAdapter
CPluginLoader
CPluginSummarisingAdapter
CPluginWrapper
CFFT	A simple FFT implementation provided for convenience of plugin authors
CFFTComplex	A simple FFT implementation provided for convenience of plugin authors
CFFTReal	A simple FFT implementation provided for convenience of plugin authors
▼CPlugin
CFeature
COutputDescriptor
CPluginAdapter
CPluginAdapterBase
▼CPluginBase	A base class for plugins with optional configurable parameters, programs, etc
CParameterDescriptor
CPluginHostAdapter
CRealTime
C_VampFeature
C_VampFeatureList
C_VampFeatureUnion
C_VampFeatureV2
C_VampOutputDescriptor
C_VampParameterDescriptor	C language API for Vamp plugins
C_VampPluginDescriptor
CAmplitudeFollower	Example plugin implementing the SuperCollider amplitude follower function
▼CFixedTempoEstimator	Example plugin that estimates the tempo of a short fixed-tempo sample
CD
CPercussionOnsetDetector	Example plugin that detects percussive events
CPowerSpectrum	Example plugin that returns a power spectrum calculated (trivially) from the frequency domain representation of each block of audio
CSpectralCentroid	Example plugin that calculates the centre of gravity of the frequency domain representation of each block of audio
CZeroCrossing	Example plugin that calculates the positions and density of zero-crossing points in an audio waveform