X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fvideo_examiner.h;h=f8d247d1542a41a9c229681bda6d2247457dd008;hb=3b80b8f8a938dd34ee0e0fbca8fbce6a6850f136;hp=98c0cdff1433d21e0ad0106c994bf06762f6ffd8;hpb=f0e95aa5b7ada81a1c40f06facab2e94e45ab26c;p=dcpomatic.git

diff --git a/src/lib/video_examiner.h b/src/lib/video_examiner.h
index 98c0cdff1..f8d247d15 100644
--- a/src/lib/video_examiner.h
+++ b/src/lib/video_examiner.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,15 +17,25 @@
 
 */
 
-#include <libdcp/types.h>
+/** @file  src/lib/video_examiner.h
+ *  @brief VideoExaminer class.
+ */
+
 #include "types.h"
 #include "video_content.h"
+#include <dcp/types.h>
 
+/** @class VideoExaminer
+ *  @brief Parent for classes which examine video sources and obtain information about them.
+ */
 class VideoExaminer
 {
 public:
 	virtual ~VideoExaminer () {}
-	virtual float video_frame_rate () const = 0;
-	virtual libdcp::Size video_size () const = 0;
-	virtual VideoFrame video_length () const = 0;
+	virtual boost::optional<float> video_frame_rate () const = 0;
+	virtual dcp::Size video_size () const = 0;
+	virtual Frame video_length () const = 0;
+	virtual boost::optional<float> sample_aspect_ratio () const {
+		return boost::optional<float> ();
+	}
 };