From 9e0d7b95fd73d84135a28260fa995c0be1649c46 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Sun, 22 Apr 2018 21:41:44 +0100
Subject: Add MOS tag in ISDCF names if there is no sound.

---
 src/lib/film.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/lib/film.cc b/src/lib/film.cc
index df4a5586e..ccc92f067 100644
--- a/src/lib/film.cc
+++ b/src/lib/film.cc
@@ -730,7 +730,9 @@ Film::isdcf_name (bool if_created_now) const
 	/* Count mapped audio channels */
 
 	pair<int, int> ch = audio_channel_types (mapped_audio_channels(), audio_channels());
-	if (ch.first) {
+	if (!ch.first && !ch.second) {
+		d += "_MOS";
+	} else if (ch.first) {
 		d += String::compose("_%1%2", ch.first, ch.second);
 	}
 
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