URXE_DEMUX_STATE_PENDING
urxe->demux_state = URXE_DEMUX_STATE_PENDING;
assert(e->demux_state == URXE_DEMUX_STATE_PENDING);
urxe->demux_state = URXE_DEMUX_STATE_PENDING;
e->demux_state = URXE_DEMUX_STATE_PENDING;