From 66b2dc980b68100c139d6cadfdcffa68b1a16069 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Tue, 1 Dec 2020 11:24:41 +0100
Subject: [PATCH] Add missing lock.

---
 src/lib/video_ring_buffers.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/lib/video_ring_buffers.cc b/src/lib/video_ring_buffers.cc
index bfec507ea..e0e1b052c 100644
--- a/src/lib/video_ring_buffers.cc
+++ b/src/lib/video_ring_buffers.cc
@@ -77,6 +77,7 @@ VideoRingBuffers::clear ()
 pair<size_t, string>
 VideoRingBuffers::memory_used () const
 {
+	boost::mutex::scoped_lock lm (_mutex);
 	size_t m = 0;
 	for (list<pair<shared_ptr<PlayerVideo>, DCPTime> >::const_iterator i = _data.begin(); i != _data.end(); ++i) {
 		m += i->first->memory_used();
-- 
2.30.2