BOOST_REQUIRE_NO_THROW (remotely_encoded = frame->encode_remotely (description, 1200));
BOOST_REQUIRE_EQUAL (locally_encoded.size(), remotely_encoded.size());
BOOST_REQUIRE_NO_THROW (remotely_encoded = frame->encode_remotely (description, 1200));
BOOST_REQUIRE_EQUAL (locally_encoded.size(), remotely_encoded.size());