Fix reel that subtitles are put in when they are exactly on a reel boundary.

2 files changed, 8 insertions, 1 deletions

diff --git a/src/lib/writer.cc b/src/lib/writer.cc
index ab5d3504c..17bd21daf 100644
--- a/src/lib/writer.cc
+++ b/src/lib/writer.cc
@@ -150,6 +150,12 @@ Writer::write (Data encoded, Frame frame, Eyes eyes)
 	_empty_condition.notify_all ();
 }
 
+bool
+Writer::can_repeat (Frame frame) const
+{
+	return frame > _reels[video_reel(frame)].start();
+}
+
 /** Repeat the last frame that was written to a reel as a new frame.
  *  @param frame Frame index within the DCP of the new (repeated) frame.
  *  @param eyes Eyes that this repeated frame image is for.
@@ -519,7 +525,7 @@ Writer::write (PlayerSubtitles subs)
 		return;
 	}
 
-	if (_subtitle_reel->period().to < subs.from) {
+	if (_subtitle_reel->period().to <= subs.from) {
 		++_subtitle_reel;
 	}
 
diff --git a/src/lib/writer.h b/src/lib/writer.h
index 28e243c35..5c974f0f3 100644
--- a/src/lib/writer.h
+++ b/src/lib/writer.h
@@ -95,6 +95,7 @@ public:
 
 	void write (Data, Frame, Eyes);
 	void fake_write (Frame, Eyes);
+	bool can_repeat (Frame) const;
 	void repeat (Frame, Eyes);
 	void write (boost::shared_ptr<const AudioBuffers>);
 	void write (PlayerSubtitles subs);