BOOST_REQUIRE_EQUAL (flags.size(), 2);
BOOST_CHECK_EQUAL (flags.front()->content(), "http://www.smpte-ra.org/430-1/2006/KDM#mrkflg-picture-disable");
BOOST_CHECK_EQUAL (flags.back()->content(), "http://www.smpte-ra.org/430-1/2006/KDM#mrkflg-audio-disable-above-channel-3");
BOOST_REQUIRE_EQUAL (flags.size(), 2);
BOOST_CHECK_EQUAL (flags.front()->content(), "http://www.smpte-ra.org/430-1/2006/KDM#mrkflg-picture-disable");
BOOST_CHECK_EQUAL (flags.back()->content(), "http://www.smpte-ra.org/430-1/2006/KDM#mrkflg-audio-disable-above-channel-3");