aubio_log_function_t typedef

Logging function prototype, to be passed to ::aubio_log_set_function

\param level log level \param message text to log \param data optional closure used by the callback

See @ref utils/test-log.c for an example of logging function.

Implementation

typedef aubio_log_function_t
    = ffi.Pointer<ffi.NativeFunction<aubio_log_function_tFunction>>;