Split Empty into two separate classes, EmptyAudio and EmptyVideo.
[dcpomatic.git] / src / lib / empty_video.h
diff --git a/src/lib/empty_video.h b/src/lib/empty_video.h
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+/*
+    Copyright (C) 2018-2021 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_EMPTY_VIDEO_H
+#define DCPOMATIC_EMPTY_VIDEO_H
+
+
+#include "content_part.h"
+#include "dcpomatic_time.h"
+#include "playlist.h"
+#include <list>
+
+
+struct empty_video_test1;
+struct empty_video_test2;
+struct empty_video_test3;
+struct empty_video_test_with_overlapping_content;
+struct player_subframe_test;
+
+
+class EmptyVideo
+{
+public:
+       EmptyVideo () {}
+       EmptyVideo (std::shared_ptr<const Film> film, std::shared_ptr<const Playlist> playlist, dcpomatic::DCPTime length);
+
+       dcpomatic::DCPTime position () const {
+               return _position;
+       }
+
+       dcpomatic::DCPTimePeriod period_at_position () const;
+
+       bool done () const;
+
+       void set_position (dcpomatic::DCPTime amount);
+
+private:
+       friend struct ::empty_video_test1;
+       friend struct ::empty_video_test2;
+       friend struct ::empty_video_test3;
+       friend struct ::empty_video_test_with_overlapping_content;
+       friend struct ::player_subframe_test;
+
+       std::list<dcpomatic::DCPTimePeriod> _periods;
+       dcpomatic::DCPTime _position;
+};
+
+
+#endif