X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Futil.cc;h=d8c754607f47a5940b51e95921ead82c11a2daca;hb=2bfd531137f1a4874493186015046e33c5a07c1e;hp=bffbe90d402b2bca5cf8b74852c58556265c03ea;hpb=120c587cffb540d18b519f53615dd73e33df177c;p=dcpomatic.git

diff --git a/src/lib/util.cc b/src/lib/util.cc
index bffbe90d4..d8c754607 100644
--- a/src/lib/util.cc
+++ b/src/lib/util.cc
@@ -564,18 +564,21 @@ wrapped_av_malloc (size_t s)
 	}
 	return p;
 }
-		
-ContentTimePeriod
+
+FFmpegSubtitlePeriod
 subtitle_period (AVSubtitle const & sub)
 {
 	ContentTime const packet_time = ContentTime::from_seconds (static_cast<double> (sub.pts) / AV_TIME_BASE);
 
-	ContentTimePeriod period (
+	if (sub.end_display_time == static_cast<uint32_t> (-1)) {
+		/* End time is not known */
+		return FFmpegSubtitlePeriod (packet_time + ContentTime::from_seconds (sub.start_display_time / 1e3));
+	}
+	
+	return FFmpegSubtitlePeriod (
 		packet_time + ContentTime::from_seconds (sub.start_display_time / 1e3),
 		packet_time + ContentTime::from_seconds (sub.end_display_time / 1e3)
 		);
-
-	return period;
 }
 
 map<string, string>