Function ZL_Encoder_getState 

pub unsafe extern "C" fn ZL_Encoder_getState(
    ei: *mut ZL_Encoder,
) -> *mut c_void

@returns Returns a state, as generated by the Transform’s State Manager. The state’s lifetime is managed by the host CCtx, it will be free automatically at end of CCtx lifetime (and can’t be forcefully free manually). The state may be cached from a previous run with a compatible transform (same state signature).