Add VideoFrame class.

This puts a frame index with an Eyes, which simplifies code in
some areas.  I can't think of a better name for it,
unfortunately.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/lib/video_frame.h b/src/lib/video_frame.h
new file mode 100644
index 000000000..abb25ec37
--- /dev/null
+++ b/src/lib/video_frame.h
@@ -0,0 +1,62 @@
+/*
+    Copyright (C) 2016 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef DCPOMATIC_VIDEO_FRAME_H
+#define DCPOMATIC_VIDEO_FRAME_H
+
+#include "types.h"
+
+class VideoFrame
+{
+public:
+	VideoFrame ()
+		: _index (0)
+		, _eyes (EYES_BOTH)
+	{}
+
+	VideoFrame (Frame i)
+		: _index (i)
+		, _eyes (EYES_BOTH)
+	{}
+
+	VideoFrame (Frame i, Eyes e)
+		: _index (i)
+		, _eyes (e)
+	{}
+
+	Frame index () const {
+		return _index;
+	}
+
+	Eyes eyes () const {
+		return _eyes;
+	}
+
+	VideoFrame& operator++ ();
+
+private:
+	Frame _index;
+	Eyes _eyes;
+};
+
+extern bool operator== (VideoFrame const & a, VideoFrame const & b);
+extern bool operator!= (VideoFrame const & a, VideoFrame const & b);
+
+#endif