From 1c7fa34f577e0ebfd97cfbd68abcbff05d37c119 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Tue, 29 Jan 2019 09:50:50 +0100
Subject: [PATCH] port: make it possible to clear the mix node again

---
 src/pipewire/port.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/pipewire/port.c b/src/pipewire/port.c
index 590a2effa..e45f19316 100644
--- a/src/pipewire/port.c
+++ b/src/pipewire/port.c
@@ -292,6 +292,12 @@ struct pw_port *pw_port_new(enum pw_direction direction,
 
 int pw_port_set_mix(struct pw_port *port, struct spa_node *node, uint32_t flags)
 {
+	struct impl *impl = SPA_CONTAINER_OF(port, struct impl, this);
+
+	if (node == NULL) {
+		node = &impl->mix_node;
+		flags = 0;
+	}
 	pw_log_debug("port %p: mix node %p->%p", port, port->mix, node);
 	port->mix = node;
 	port->mix_flags = flags;