diff options
| author | Robin Gareus <robin@gareus.org> | 2012-10-17 15:57:51 +0000 |
|---|---|---|
| committer | Robin Gareus <robin@gareus.org> | 2012-10-17 15:57:51 +0000 |
| commit | c4cb4fa1417bd2c19654e449b285b171e2130eca (patch) | |
| tree | 3d310e739f9ff38c95f549fdf86b2bf323be9009 /libs/ardour/midi_clock_slave.cc | |
| parent | 501d870b3c7e01756a22faaa5b446bd36b331259 (diff) | |
slave delta display
impl MClk slave, update format for LTC, MTC
negative delta: Ardour is behind,
positive delta: Ardour is ahead of ext clock.
git-svn-id: svn://localhost/ardour2/branches/3.0@13299 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/midi_clock_slave.cc')
| -rw-r--r-- | libs/ardour/midi_clock_slave.cc | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libs/ardour/midi_clock_slave.cc b/libs/ardour/midi_clock_slave.cc index 05c0e9e2ac..a54965557a 100644 --- a/libs/ardour/midi_clock_slave.cc +++ b/libs/ardour/midi_clock_slave.cc @@ -205,6 +205,7 @@ MIDIClock_Slave::reset () _started = true; // session->request_locate(0, false); + current_delta = 0; } void @@ -343,6 +344,7 @@ MIDIClock_Slave::speed_and_position (double& speed, framepos_t& pos) } DEBUG_TRACE (DEBUG::MidiClock, string_compose ("speed_and_position: %1 & %2 <-> %3 (transport)\n", speed, pos, session->transport_frame())); + current_delta = pos - session->transport_frame(); return true; } @@ -354,3 +356,16 @@ MIDIClock_Slave::resolution() const return (framecnt_t) one_ppqn_in_frames * ppqn; } +std::string +MIDIClock_Slave::approximate_current_delta() const +{ + char delta[24]; + if (last_timestamp == 0 || _starting) { + snprintf(delta, sizeof(delta), "\u2012\u2012\u2012\u2012"); + } else { + snprintf(delta, sizeof(delta), "%s%4" PRIi64 " sm", + PLUSMINUS(-current_delta), abs(current_delta)); + } + return std::string(delta); +} + |