DEBUG_TRACE (DEBUG::MTC, string_compose ("TF %1 SF %2 MT %3 QF %4 QD %5\n",
_transport_frame, start_frame, outbound_mtc_timecode_frame,
next_quarter_frame_to_send, quarter_frame_duration));
DEBUG_TRACE (DEBUG::MTC, string_compose ("TF %1 SF %2 MT %3 QF %4 QD %5\n",
_transport_frame, start_frame, outbound_mtc_timecode_frame,
next_quarter_frame_to_send, quarter_frame_duration));