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tools: use safer spa_pod_parser for control events

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This commit is contained in:
Wim Taymans 2025-07-30 19:08:36 +02:00
parent a3da53f66e
commit 5743849b50
3 changed files with 32 additions and 26 deletions
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29
src/tools/pw-mididump.c
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@ -62,11 +62,14 @@ static void on_process(void *_data, struct spa_io_position *position)
struct pw_buffer *b;
struct spa_buffer *buf;
struct spa_data *d;
struct spa_pod *pod;
struct spa_pod_control *c;
uint64_t frame;
struct spa_pod_parser parser;
struct spa_pod_frame frame;
struct spa_pod_sequence seq;
const void *seq_body, *c_body;
struct spa_pod_control c;
uint64_t offset;
frame = data->clock_time;
offset = data->clock_time;
data->clock_time += position->clock.duration;
b = pw_filter_dequeue_buffer(data->in_port);
@ -79,24 +82,24 @@ static void on_process(void *_data, struct spa_io_position *position)
if (d->data == NULL)
goto done;
if ((pod = spa_pod_from_data(d->data, d->maxsize, d->chunk->offset, d->chunk->size)) == NULL)
goto done;
if (!spa_pod_is_sequence(pod))
spa_pod_parser_init_from_data(&parser, d->data, d->maxsize, d->chunk->offset, d->chunk->size);
if (spa_pod_parser_push_sequence_body(&parser, &frame, &seq, &seq_body) < 0)
goto done;
SPA_POD_SEQUENCE_FOREACH((struct spa_pod_sequence*)pod, c) {
while (spa_pod_parser_get_control_body(&parser, &c, &c_body) >= 0) {
struct midi_event ev;
if (c->type != SPA_CONTROL_UMP)
if (c.type != SPA_CONTROL_UMP)
continue;
ev.track = 0;
ev.sec = (frame + c->offset) / (float) position->clock.rate.denom;
ev.data = SPA_POD_BODY(&c->value),
ev.size = SPA_POD_BODY_SIZE(&c->value);
ev.sec = (offset + c.offset) / (float) position->clock.rate.denom;
ev.data = (uint8_t*)c_body;
ev.size = c.value.size;
ev.type = MIDI_EVENT_TYPE_UMP;
fprintf(stdout, "%4d: ", c->offset);
fprintf(stdout, "%4d: ", c.offset);
midi_file_dump_event(stdout, &ev);
}