diff --git a/spa/plugins/audiomixer/audiomixer.c b/spa/plugins/audiomixer/audiomixer.c
index f81ac9fdb..151046acb 100644
--- a/spa/plugins/audiomixer/audiomixer.c
+++ b/spa/plugins/audiomixer/audiomixer.c
@@ -524,6 +524,9 @@ impl_node_port_enum_params(struct spa_node *node,
 				":", t->param_io.propType, "dr", p->volume, 2, 0.0, 10.0);
 			break;
 		case 3:
+			if (direction == SPA_DIRECTION_OUTPUT)
+				return 0;
+
 			param = spa_pod_builder_object(&b,
 				id, t->param_io.IO,
 				":", t->param_io.id, "I", t->io_prop_mute,
diff --git a/src/pipewire/client.c b/src/pipewire/client.c
index 4be927955..3b758220a 100644
--- a/src/pipewire/client.c
+++ b/src/pipewire/client.c
@@ -272,7 +272,8 @@ void pw_client_update_properties(struct pw_client *client, const struct spa_dict
 	client->info.change_mask |= PW_CLIENT_CHANGE_MASK_PROPS;
 	client->info.props = client->properties ? &client->properties->dict : NULL;
 
-	spa_hook_list_call(&client->listener_list, struct pw_client_events, info_changed, &client->info);
+	spa_hook_list_call(&client->listener_list, struct pw_client_events,
+			info_changed, &client->info);
 
 	spa_list_for_each(resource, &client->resource_list, link)
 		pw_client_resource_info(resource, &client->info);
diff --git a/src/pipewire/core.c b/src/pipewire/core.c
index 1b98568d4..af3058f5d 100644
--- a/src/pipewire/core.c
+++ b/src/pipewire/core.c
@@ -583,7 +583,8 @@ void pw_core_update_properties(struct pw_core *core, const struct spa_dict *dict
 	core->info.change_mask = PW_CORE_CHANGE_MASK_PROPS;
 	core->info.props = &core->properties->dict;
 
-	spa_hook_list_call(&core->listener_list, struct pw_core_events, info_changed, &core->info);
+	spa_hook_list_call(&core->listener_list, struct pw_core_events,
+			info_changed, &core->info);
 
 	spa_list_for_each(resource, &core->resource_list, link)
 		pw_core_resource_info(resource, &core->info);
diff --git a/src/pipewire/link.c b/src/pipewire/link.c
index 0843089af..311a8c9c5 100644
--- a/src/pipewire/link.c
+++ b/src/pipewire/link.c
@@ -220,6 +220,9 @@ static int do_negotiate(struct pw_link *this, uint32_t in_state, uint32_t out_st
 	if (changed) {
 		this->info.change_mask |= PW_LINK_CHANGE_MASK_FORMAT;
 
+		spa_hook_list_call(&this->listener_list, struct pw_link_events,
+				info_changed, &this->info);
+
 		spa_list_for_each(resource, &this->resource_list, link)
 			pw_link_resource_info(resource, &this->info);
 
@@ -335,6 +338,7 @@ static struct spa_buffer **alloc_buffers(struct pw_link *this,
 	void *ddp;
 	uint32_t n_metas;
 	struct spa_meta *metas;
+	struct pw_type *t = &this->core->type;
 
 	n_metas = data_size = meta_size = 0;
 
@@ -348,18 +352,18 @@ static struct spa_buffer **alloc_buffers(struct pw_link *this,
 	/* add shared metadata this should not go into shared
 	 * memory or else a client can damage it so we inline it after
 	 * the array of spa_meta. */
-	metas[n_metas].type = this->core->type.meta.Shared;
+	metas[n_metas].type = t->meta.Shared;
 	metas[n_metas].size = sizeof(struct spa_meta_shared);
 	n_metas++;
 
 	/* collect metadata */
 	for (i = 0; i < n_params; i++) {
-		if (spa_pod_is_object_type (params[i], this->core->type.param_meta.Meta)) {
+		if (spa_pod_is_object_type (params[i], t->param_meta.Meta)) {
 			uint32_t type, size;
 
 			if (spa_pod_object_parse(params[i],
-				":", this->core->type.param_meta.type, "I", &type,
-				":", this->core->type.param_meta.size, "i", &size, NULL) < 0)
+				":", t->param_meta.type, "I", &type,
+				":", t->param_meta.size, "i", &size, NULL) < 0)
 				continue;
 
 			pw_log_debug("link %p: enable meta %d %d", this, type, size);
@@ -413,7 +417,7 @@ static struct spa_buffer **alloc_buffers(struct pw_link *this,
 			m->type = metas[j].type;
 			m->size = metas[j].size;
 
-			if (m->type == this->core->type.meta.Shared) {
+			if (m->type == t->meta.Shared) {
 				m->data = msh;
 			}
 			else {
@@ -433,7 +437,7 @@ static struct spa_buffer **alloc_buffers(struct pw_link *this,
 
 			d->chunk = &cdp[j];
 			if (data_sizes[j] > 0) {
-				d->type = this->core->type.data.MemFd;
+				d->type = t->data.MemFd;
 				d->flags = 0;
 				d->fd = mem->fd;
 				d->mapoffset = SPA_PTRDIFF(ddp, mem->ptr);
diff --git a/src/pipewire/node.c b/src/pipewire/node.c
index 0db704ca6..7b85ba49d 100644
--- a/src/pipewire/node.c
+++ b/src/pipewire/node.c
@@ -456,7 +456,8 @@ void pw_node_update_properties(struct pw_node *node, const struct spa_dict *dict
 	node->info.props = &node->properties->dict;
 
 	node->info.change_mask = PW_NODE_CHANGE_MASK_PROPS;
-	spa_hook_list_call(&node->listener_list, struct pw_node_events, info_changed, &node->info);
+	spa_hook_list_call(&node->listener_list, struct pw_node_events,
+			info_changed, &node->info);
 
 	spa_list_for_each(resource, &node->resource_list, link)
 		pw_node_resource_info(resource, &node->info);
@@ -856,7 +857,8 @@ void pw_node_update_state(struct pw_node *node, enum pw_node_state state, char *
 				 old, state, error);
 
 		node->info.change_mask |= PW_NODE_CHANGE_MASK_STATE;
-		spa_hook_list_call(&node->listener_list, struct pw_node_events, info_changed, &node->info);
+		spa_hook_list_call(&node->listener_list, struct pw_node_events,
+				info_changed, &node->info);
 
 		spa_list_for_each(resource, &node->resource_list, link)
 			pw_node_resource_info(resource, &node->info);
diff --git a/src/pipewire/remote.c b/src/pipewire/remote.c
index 11a11a147..4ad690539 100644
--- a/src/pipewire/remote.c
+++ b/src/pipewire/remote.c
@@ -152,7 +152,8 @@ static void core_event_info(void *data, struct pw_core_info *info)
 
 	pw_log_debug("remote %p: got core info", this);
 	this->info = pw_core_info_update(this->info, info);
-	spa_hook_list_call(&this->listener_list, struct pw_remote_events, info_changed, this->info);
+	spa_hook_list_call(&this->listener_list, struct pw_remote_events,
+			info_changed, this->info);
 }
 
 static void core_event_done(void *data, uint32_t seq)