From 7f6cc5c6e151c32fce94181689cf740a011feafb Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Fri, 17 May 2024 15:03:15 +0200
Subject: Emit no audio from DCPs if none is mapped

This makes DCP content behave the same as FFmpeg.
---
 src/lib/dcp_decoder.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/dcp_decoder.cc b/src/lib/dcp_decoder.cc
index 165b5bfb5..17f0e73b5 100644
--- a/src/lib/dcp_decoder.cc
+++ b/src/lib/dcp_decoder.cc
@@ -77,7 +77,7 @@ DCPDecoder::DCPDecoder (shared_ptr<const Film> film, shared_ptr<const DCPContent
 		if (content->video) {
 			video = make_shared<VideoDecoder>(this, content);
 		}
-		if (content->audio) {
+		if (content->audio && !content->audio->mapping().mapped_output_channels().empty()) {
 			audio = make_shared<AudioDecoder>(this, content->audio, fast);
 		}
 		for (auto i: content->text) {
-- 
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