From 2c2aa91347c0016e6393fc138afe68adab3d6d21 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Sun, 21 Dec 2014 02:14:37 +0000
Subject: [PATCH] Don't create subtitle content if there is an empty fonts
 list.

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

diff --git a/src/lib/writer.cc b/src/lib/writer.cc
index 512973f46..f844a139a 100644
--- a/src/lib/writer.cc
+++ b/src/lib/writer.cc
@@ -628,6 +628,10 @@ Writer::write (PlayerSubtitles subs)
 void
 Writer::write (list<shared_ptr<Font> > fonts)
 {
+	if (fonts.empty ()) {
+		return;
+	}
+	
 	if (!_subtitle_content) {
 		_subtitle_content.reset (new dcp::InteropSubtitleContent (_film->name(), _film->subtitle_language ()));
 	}
-- 
2.30.2