Assorted image subtitle fixes.

[dcpomatic.git] / src / lib / util.cc

diff --git a/src/lib/util.cc b/src/lib/util.cc
index bffbe90d402b2bca5cf8b74852c58556265c03ea..d8c754607f47a5940b51e95921ead82c11a2daca 100644 (file)
--- 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;
 }
 
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