diff --git a/src/modules/module-filter-chain.c b/src/modules/module-filter-chain.c
index 898211576..b3b75dd8a 100644
--- a/src/modules/module-filter-chain.c
+++ b/src/modules/module-filter-chain.c
@@ -1071,9 +1071,9 @@ static const struct pw_stream_events out_stream_events = {
 static int setup_streams(struct impl *impl)
 {
 	int res;
-	uint32_t i, n_params;
-	uint32_t offsets[512];
-	const struct spa_pod *params[512];
+	uint32_t i, n_params, *offs;
+	struct pw_array offsets;
+	const struct spa_pod **params = NULL;
 	struct spa_pod_dynamic_builder b;
 	struct graph *graph = &impl->graph;
 
@@ -1097,23 +1097,40 @@ static int setup_streams(struct impl *impl)
 			&impl->playback_listener,
 			&out_stream_events, impl);
 
-	n_params = 0;
 	spa_pod_dynamic_builder_init(&b, NULL, 0, 4096);
+	pw_array_init(&offsets, 512);
 
-	offsets[n_params++] = b.b.state.offset;
+	if ((offs = pw_array_add(&offsets, sizeof(uint32_t))) == NULL) {
+		res = -errno;
+		goto done;
+	}
+	*offs = b.b.state.offset;
 	spa_format_audio_raw_build(&b.b,
 			SPA_PARAM_EnumFormat, &impl->capture_info);
 
 	for (i = 0; i < graph->n_control; i++) {
-		offsets[n_params++] = b.b.state.offset;
+		if ((offs = pw_array_add(&offsets, sizeof(uint32_t))) != NULL)
+			*offs = b.b.state.offset;
 		get_prop_info(graph, &b.b, i);
 	}
 
-	offsets[n_params++] = b.b.state.offset;
+	if ((offs = pw_array_add(&offsets, sizeof(uint32_t))) != NULL)
+		*offs = b.b.state.offset;
 	get_props_param(graph, &b.b);
 
+	n_params = pw_array_get_len(&offsets, uint32_t);
+	if (n_params == 0) {
+		res = -ENOMEM;
+		goto done;
+	}
+	if ((params = calloc(n_params, sizeof(struct spa_pod*))) == NULL) {
+		res = -errno;
+		goto done;
+	}
+
+	offs = offsets.data;
 	for (i = 0; i < n_params; i++)
-		params[i] = spa_pod_builder_deref(&b.b, offsets[i]);
+		params[i] = spa_pod_builder_deref(&b.b, offs[i]);
 
 	res = pw_stream_connect(impl->capture,
 			PW_DIRECTION_INPUT,
@@ -1125,7 +1142,7 @@ static int setup_streams(struct impl *impl)
 
 	spa_pod_dynamic_builder_clean(&b);
 	if (res < 0)
-		return res;
+		goto done;
 
 	n_params = 0;
 	spa_pod_dynamic_builder_init(&b, NULL, 0, 4096);
@@ -1142,11 +1159,11 @@ static int setup_streams(struct impl *impl)
 			params, n_params);
 	spa_pod_dynamic_builder_clean(&b);
 
-	if (res < 0)
-		return res;
+done:
+	free(params);
+	pw_array_clear(&offsets);
 
-
-	return 0;
+	return res < 0 ? res : 0;
 }
 
 static uint32_t count_array(struct spa_json *json)