Fix missing subtitles in some cases.

We were passing subtitles back from decoders to SubtitleDecoder
using dcp::SubtitleStrings and relying on their storage of time
to know when the subtitles were.  These times are quantised (by
the use of dcp::SubtitleString) and then compared with unquantised
times (kept as ContentTime) in the main checking loop in
SubtitleDecoder::get().

Fix this by storing periods as ContentTimePeriod as well as
in the dcp::SubtitleStrings.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/subtitle_decoder.h b/src/lib/subtitle_decoder.h
index c958419c7..5f11e27e7 100644
--- a/src/lib/subtitle_decoder.h
+++ b/src/lib/subtitle_decoder.h
@@ -42,7 +42,7 @@ protected:
 	void seek (ContentTime, bool);
 
 	void image_subtitle (ContentTimePeriod period, boost::shared_ptr<Image>, dcpomatic::Rect<double>);
-	void text_subtitle (std::list<dcp::SubtitleString>);
+	void text_subtitle (ContentTimePeriod period, std::list<dcp::SubtitleString>);
 
 	std::list<ContentImageSubtitle> _decoded_image_subtitles;
 	std::list<ContentTextSubtitle> _decoded_text_subtitles;