From 3472cd4dc301beb7db39419e922fc0b02cf36cf4 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Sat, 12 Aug 2023 00:13:08 +0200
Subject: Prevent empty <LabelText> in <ContentVersion> (#2594).

---
 src/lib/writer.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/lib')

diff --git a/src/lib/writer.cc b/src/lib/writer.cc
index 8b8ab89de..1ccf7c759 100644
--- a/src/lib/writer.cc
+++ b/src/lib/writer.cc
@@ -616,7 +616,10 @@ Writer::finish (boost::filesystem::path output_dcp)
 
 	vector<dcp::ContentVersion> cv;
 	for (auto i: film()->content_versions()) {
-		cv.push_back (dcp::ContentVersion(i));
+		/* Make sure we don't end up writing an empty <LabelText> node as some validators
+		 * complain about that.
+		 */
+		cv.push_back(!i.empty() ? dcp::ContentVersion(i) : dcp::ContentVersion("1"));
 	}
 	if (cv.empty()) {
 		cv = { dcp::ContentVersion("1") };
-- 
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