0001-media-session-only-check-passthrough-when-available.patch

From 3eec78bcb7ca9ced50cd525dc590bad663f44d36 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Thu, 9 Sep 2021 16:24:04 +0200
Subject: [PATCH] media-session: only check passthrough when available

When none of the nodes have a valid passthrough format, don't check if
passthrough is possible.

Without the check, it is possible that a node has a common format with
the peer that is not a passthrough format, like a raw audio format.

Fixes #1587
---
 src/examples/media-session/policy-node.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/examples/media-session/policy-node.c b/src/examples/media-session/policy-node.c
index ceeb11c42..68732c247 100644
--- a/src/examples/media-session/policy-node.c
+++ b/src/examples/media-session/policy-node.c
@@ -217,6 +217,9 @@ static bool check_passthrough(struct node *node, struct node *peer)
 	if (peer->obj->info->state == PW_NODE_STATE_RUNNING)
 		return false;
 
+	if (!node->have_passthrough || !peer->have_passthrough)
+		return false;
+
 	spa_list_for_each(p1, &node->obj->param_list, link) {
 		if (p1->id != SPA_PARAM_EnumFormat)
 			continue;
-- 
2.31.1