From bea1b9f9c77c721afd15bab392a86343f8d6b83a Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Fri, 20 Nov 2020 00:40:02 +0100
Subject: [PATCH] Fix potential crash if maybe_add_text() fails.

---
 src/lib/reel_writer.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/lib/reel_writer.cc b/src/lib/reel_writer.cc
index a927770a5..c4df58fe7 100644
--- a/src/lib/reel_writer.cc
+++ b/src/lib/reel_writer.cc
@@ -602,8 +602,10 @@ ReelWriter::create_reel (list<ReferencedReelAsset> const & refs, list<shared_ptr
 		shared_ptr<dcp::ReelClosedCaptionAsset> a = maybe_add_text<dcp::ReelClosedCaptionAsset> (
 			i->second, reel_picture_asset->actual_duration(), reel, refs, fonts, _film, _period
 			);
-		a->set_annotation_text (i->first.name);
-		a->set_language (i->first.language);
+		if (a) {
+			a->set_annotation_text (i->first.name);
+			a->set_language (i->first.language);
+		}
 	}
 
 	Film::Markers markers = _film->markers ();
-- 
2.30.2