diff options
Diffstat (limited to 'libs/ardour/ticker.cc')
| -rw-r--r-- | libs/ardour/ticker.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libs/ardour/ticker.cc b/libs/ardour/ticker.cc index 97e44ebf7b..7f7ca32907 100644 --- a/libs/ardour/ticker.cc +++ b/libs/ardour/ticker.cc @@ -181,6 +181,10 @@ double MidiClockTicker::one_ppqn_in_frames(nframes_t transport_position) void MidiClockTicker::send_midi_clock_event(nframes_t offset) { + if (!_midi_port) { + return; + } + #ifdef WITH_JACK_MIDI assert (MIDI::JACK_MidiPort::is_process_thread()); #endif // WITH_JACK_MIDI @@ -193,18 +197,30 @@ void MidiClockTicker::send_midi_clock_event(nframes_t offset) void MidiClockTicker::send_start_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_START }; _midi_port->write(_midi_clock_tick, 1, offset); } void MidiClockTicker::send_continue_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CONTINUE }; _midi_port->write(_midi_clock_tick, 1, offset); } void MidiClockTicker::send_stop_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_STOP }; _midi_port->write(_midi_clock_tick, 1, offset); } |