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midifile: correctly write SysEx events

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We need to place the sysex length in the message as well.
This commit is contained in:
Wim Taymans 2026-05-20 16:05:12 +02:00
parent f2de48f1e7
commit 4e389940e8
1 changed files with 13 additions and 2 deletions
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15
src/tools/midifile.c
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@ -513,10 +513,10 @@ int midi_file_write_event(struct midi_file *mf, const struct midi_event *event)
{ {
struct midi_track *tr; struct midi_track *tr;
uint32_t tick; uint32_t tick;
void *data, *ev_data; void *data;
size_t size; size_t size;
int res, ev_size; int res, ev_size;
uint8_t ev[32]; uint8_t ev[32], *ev_data;
uint64_t state = 0; uint64_t state = 0;
spa_return_val_if_fail(event != NULL, -EINVAL); spa_return_val_if_fail(event != NULL, -EINVAL);
@ -550,6 +550,17 @@ int midi_file_write_event(struct midi_file *mf, const struct midi_event *event)
CHECK_RES(write_varlen(mf, tr, tick - tr->tick)); CHECK_RES(write_varlen(mf, tr, tick - tr->tick));
tr->tick = tick; tr->tick = tick;
if (ev_size > 0 &&
(ev_data[0] == 0xf0 || ev_data[0] == 0xf7)) {
CHECK_RES(write_n(mf->file, ev_data, 1));
ev_size -= 1;
ev_data += 1;
CHECK_RES(write_varlen(mf, tr, ev_size));
tr->size += 1;
}
CHECK_RES(write_n(mf->file, ev_data, ev_size)); CHECK_RES(write_n(mf->file, ev_data, ev_size));
tr->size += ev_size; tr->size += ev_size;
} }