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Add synthio.MidiTrack.tempo property #10567

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Merged
merged 1 commit into from
Aug 12, 2025
Merged

Add synthio.MidiTrack.tempo property #10567

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22 changes: 22 additions & 0 deletions shared-bindings/synthio/MidiTrack.c
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,27 @@ static void check_for_deinit(synthio_miditrack_obj_t *self) {
//| """32 bit value that tells how quickly samples are played in Hertz (cycles per second)."""
//|

//| tempo: int
//| """Tempo of the streamed events, in MIDI ticks per second."""
//|
static mp_obj_t synthio_miditrack_obj_get_tempo(mp_obj_t self_in) {
synthio_miditrack_obj_t *self = MP_OBJ_TO_PTR(self_in);
check_for_deinit(self);
return mp_obj_new_int(common_hal_synthio_miditrack_get_tempo(self));
}
MP_DEFINE_CONST_FUN_OBJ_1(synthio_miditrack_get_tempo_obj, synthio_miditrack_obj_get_tempo);

static mp_obj_t synthio_miditrack_obj_set_tempo(mp_obj_t self_in, mp_obj_t arg) {
synthio_miditrack_obj_t *self = MP_OBJ_TO_PTR(self_in);
check_for_deinit(self);
common_hal_synthio_miditrack_set_tempo(self, mp_obj_get_int(arg));
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(synthio_miditrack_set_tempo_obj, synthio_miditrack_obj_set_tempo);
MP_PROPERTY_GETSET(synthio_miditrack_tempo_obj,
(mp_obj_t)&synthio_miditrack_get_tempo_obj,
(mp_obj_t)&synthio_miditrack_set_tempo_obj);

//| error_location: Optional[int]
//| """Offset, in bytes within the midi data, of a decoding error"""
//|
Expand All @@ -141,6 +162,7 @@ static const mp_rom_map_elem_t synthio_miditrack_locals_dict_table[] = {

// Properties
{ MP_ROM_QSTR(MP_QSTR_error_location), MP_ROM_PTR(&synthio_miditrack_error_location_obj) },
{ MP_ROM_QSTR(MP_QSTR_tempo), MP_ROM_PTR(&synthio_miditrack_tempo_obj) },
AUDIOSAMPLE_FIELDS,
};
static MP_DEFINE_CONST_DICT(synthio_miditrack_locals_dict, synthio_miditrack_locals_dict_table);
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3 changes: 3 additions & 0 deletions shared-bindings/synthio/MidiTrack.h
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Expand Up @@ -15,3 +15,6 @@ void common_hal_synthio_miditrack_construct(synthio_miditrack_obj_t *self, const

void common_hal_synthio_miditrack_deinit(synthio_miditrack_obj_t *self);
mp_int_t common_hal_synthio_miditrack_get_error_location(synthio_miditrack_obj_t *self);

mp_int_t common_hal_synthio_miditrack_get_tempo(synthio_miditrack_obj_t *self);
void common_hal_synthio_miditrack_set_tempo(synthio_miditrack_obj_t *self, mp_int_t value);
9 changes: 9 additions & 0 deletions shared-module/synthio/MidiTrack.c
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Expand Up @@ -116,6 +116,15 @@ mp_int_t common_hal_synthio_miditrack_get_error_location(synthio_miditrack_obj_t
return self->error_location;
}

mp_int_t common_hal_synthio_miditrack_get_tempo(synthio_miditrack_obj_t *self) {
return self->tempo;
}

void common_hal_synthio_miditrack_set_tempo(synthio_miditrack_obj_t *self, mp_int_t value) {
mp_int_t val = mp_arg_validate_int_min(value, 1, MP_QSTR_tempo);
self->tempo = val;
}

void synthio_miditrack_reset_buffer(synthio_miditrack_obj_t *self,
bool single_channel_output, uint8_t channel) {
synthio_synth_reset_buffer(&self->synth, single_channel_output, channel);
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