X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fvideo_examiner.h;h=66d3ae5b57ea2b056a9678ac737b660de38ee0c9;hb=d456cc07a466329a4c07e5c13322b34814e6489e;hp=72f6ccc12cab575f2a20e297ecdfed5bbb967344;hpb=09a9ac376db005a40a351736bcff4077f098825d;p=dcpomatic.git

diff --git a/src/lib/video_examiner.h b/src/lib/video_examiner.h
index 72f6ccc12..66d3ae5b5 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
@@ -17,14 +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 float video_frame_rate () const = 0;
-	virtual libdcp::Size video_size () const = 0;
-	virtual VideoContent::Frame video_length () const = 0;
+	virtual ~VideoExaminer () {}
+	virtual boost::optional<double> video_frame_rate () const = 0;
+	virtual dcp::Size video_size () const = 0;
+	virtual Frame video_length () const = 0;
+	virtual boost::optional<double> sample_aspect_ratio () const {
+		return boost::optional<double> ();
+	}
 };