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diff --git a/engines/sci/video/seq_decoder.h b/engines/sci/video/seq_decoder.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef SEQ_DECODER_H
+#define SEQ_DECODER_H
+
+#include "graphics/video/video_player.h"
+
+namespace Sci {
+
+/**
+ * Implementation of the Sierra SEQ decoder, used in KQ6 DOS floppy/CD and GK1 DOS
+ */
+class SeqDecoder : public Graphics::VideoDecoder {
+public:
+	SeqDecoder() {}
+	virtual ~SeqDecoder();
+
+	/**
+	 * Load a SEQ encoded video file
+	 * @param filename	the filename to load
+	 */
+	bool loadFile(const char *fileName) { return loadFile(fileName, 10); }
+
+	/**
+	 * Load a SEQ encoded video file
+	 * @param filename	the filename to load
+	 * @param frameDelay the delay between frames, in ticks
+	 */
+	bool loadFile(const char *fileName, int frameDelay);
+
+	/**
+	 * Close a SEQ encoded video file
+	 */
+	void closeFile();
+
+	bool decodeNextFrame();
+
+private:
+	bool decodeFrame(byte *rleData, int rleSize, byte *litData, int litSize, byte *dest, int left, int width, int height, int colorKey);
+};
+
+} // End of namespace Sci
+
+#endif