From 33aa4abdc8702205005596618274d727ebca4424 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Wed, 27 Mar 2019 11:17:22 +0000
Subject: Hack to avoid empty tracks appearing in the DCP Track control.

---
 src/lib/film.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/lib')

diff --git a/src/lib/film.cc b/src/lib/film.cc
index f61d5106f..9be048b65 100644
--- a/src/lib/film.cc
+++ b/src/lib/film.cc
@@ -1662,7 +1662,7 @@ Film::closed_caption_tracks () const
 	list<DCPTextTrack> tt;
 	BOOST_FOREACH (shared_ptr<Content> i, content()) {
 		BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
-			/* XXX: Empty DCPTextTrack ends up being a magic value here */
+			/* XXX: Empty DCPTextTrack ends up being a magic value here - the "unknown" or "not specified" track */
 			DCPTextTrack dtt = j->dcp_track().get_value_or(DCPTextTrack());
 			if (j->type() == TEXT_CLOSED_CAPTION && find(tt.begin(), tt.end(), dtt) == tt.end()) {
 				tt.push_back (dtt);
-- 
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