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filter-chain: connect atom ports to an empty atom

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Or else the lv2 plugin might crash.

Fixes #3815
This commit is contained in:
Wim Taymans 2024-01-30 16:16:56 +01:00
parent 565f560722
commit bf87fdbd70
1 changed files with 8 additions and 1 deletions
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9
src/modules/module-filter-chain/lv2_plugin.c
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@ -237,6 +237,7 @@ struct instance {
const LV2_Worker_Interface *work_iface;
int32_t block_length;
LV2_Atom empty_atom;
};
static int
@ -284,7 +285,7 @@ static void *lv2_instantiate(const struct fc_descriptor *desc,
struct plugin *p = d->p;
struct context *c = p->c;
struct instance *i;
uint32_t n_features = 0;
uint32_t n, n_features = 0;
static const int32_t min_block_length = 1;
static const int32_t max_block_length = 8192;
static const int32_t seq_size = 32768;
@ -339,6 +340,12 @@ static void *lv2_instantiate(const struct fc_descriptor *desc,
i->work_iface = (const LV2_Worker_Interface*)
lilv_instance_get_extension_data(i->instance, LV2_WORKER__interface);
}
for (n = 0; n < desc->n_ports; n++) {
const LilvPort *port = lilv_plugin_get_port_by_index(p->p, n);
if (lilv_port_is_a(p->p, port, c->atom_AtomPort)) {
lilv_instance_connect_port(i->instance, n, &i->empty_atom);
}
}
return i;
}