auimpl_engine_close
auimpl_engine_close(&c->c_ostream);
auimpl_engine_close(&c->c_istream);
auimpl_engine_close(&c->c_ostream);
auimpl_engine_close(&c->c_istream);
auimpl_engine_close(sp);
void auimpl_engine_close(audio_stream_t *);