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Fix tempo change events in ALSA backend #83

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Merged
coelckers merged 1 commit into from
Nov 2, 2025
Merged

Fix tempo change events in ALSA backend #83

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6 changes: 5 additions & 1 deletion source/mididevices/music_alsa_mididevice.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -258,7 +258,7 @@ EventType AlsaMIDIDevice::PullEvent(EventState & state) {
int tempo = MEVENT_EVENTPARM(event[2]);
if(Tempo != tempo) {
Tempo = tempo;
snd_seq_change_queue_tempo(sequencer.handle, QueueId, Tempo, &state.data);
snd_seq_ev_set_queue_tempo(&state.data, QueueId, Tempo);
return EventType::Action;
}
}
Expand Down Expand Up @@ -394,6 +394,10 @@ void AlsaMIDIDevice::PumpEvents() {
// We found an event worthy of sending to the sequencer
snd_seq_ev_set_source(&event.data, PortId);
snd_seq_ev_set_subs(&event.data);
if (event.data.type == SND_SEQ_EVENT_TEMPO) {
event.data.dest.client = SND_SEQ_CLIENT_SYSTEM;
event.data.dest.port = SND_SEQ_PORT_SYSTEM_TIMER;
}
snd_seq_ev_schedule_tick(&event.data, QueueId, false, buffer_ticks + event.ticks);
int result = snd_seq_event_output(sequencer.handle, &event.data);
if(result < 0) {
Expand Down