diff options
Diffstat (limited to 'libs/ardour/session_process.cc')
| -rw-r--r-- | libs/ardour/session_process.cc | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/libs/ardour/session_process.cc b/libs/ardour/session_process.cc index 65930ca2aa..d67744dbe7 100644 --- a/libs/ardour/session_process.cc +++ b/libs/ardour/session_process.cc @@ -265,9 +265,27 @@ Session::process_with_events (pframes_t nframes) process_event (ev); } - /* Events caused a transport change, send an MTC Full Frame (Timecode) message. - * This is sent whether rolling or not, to give slaves an idea of ardour time - * on locates (and allow slow slaves to position and prepare for rolling) + /* Decide on what to do with quarter-frame MTC during this cycle */ + + bool const was_sending_qf_mtc = _send_qf_mtc; + double const tolerance = Config->get_mtc_qf_speed_tolerance() / 100.0; + + _send_qf_mtc = ( + Config->get_send_mtc () && + _transport_speed >= (1 - tolerance) && + _transport_speed <= (1 + tolerance) + ); + + if (_send_qf_mtc && !was_sending_qf_mtc) { + /* we will re-start quarter-frame MTC this cycle, so send a full update to set things up */ + _send_timecode_update = true; + } + + /* Events caused a transport change (or we re-started sending + * MTC), so send an MTC Full Frame (Timecode) message. This + * is sent whether rolling or not, to give slaves an idea of + * ardour time on locates (and allow slow slaves to position + * and prepare for rolling) */ if (_send_timecode_update) { send_full_time_code (_transport_frame); |