From c272a5e1a5c08cfa43ea6af4783f9a2d125f2408 Mon Sep 17 00:00:00 2001
From: "Jan Alexander Steffens (heftig)" <jan.steffens@ltnglobal.com>
Date: Thu, 1 Oct 2020 11:22:51 +0200
Subject: [PATCH] multihandlesink: Don't pass NULL caps to gst_caps_is_equal

Apparently the sinkpad caps can get cleared when shutting down the
pipeline while the sink is working, provoking a critical warning.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/842>
---
 gst/tcp/gstmultihandlesink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gst/tcp/gstmultihandlesink.c b/gst/tcp/gstmultihandlesink.c
index f1d3d2c0fe..7fbe2ae3a9 100644
--- a/gst/tcp/gstmultihandlesink.c
+++ b/gst/tcp/gstmultihandlesink.c
@@ -966,7 +966,7 @@ gst_multi_handle_sink_client_queue_buffer (GstMultiHandleSink * mhsink,
     }
   } else {
     /* there were previous caps recorded, so compare */
-    if (!gst_caps_is_equal (caps, mhclient->caps)) {
+    if (caps && !gst_caps_is_equal (caps, mhclient->caps)) {
       const GValue *sh1, *sh2;
 
       /* caps are not equal, but could still have the same streamheader */