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diff --git a/intern/audaspace/ffmpeg/AUD_FFMPEGReader.h b/intern/audaspace/ffmpeg/AUD_FFMPEGReader.h
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+++ b/intern/audaspace/ffmpeg/AUD_FFMPEGReader.h
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+/*
+ * $Id$
+ *
+ * ***** BEGIN LGPL LICENSE BLOCK *****
+ *
+ * Copyright 2009 Jörg Hermann Müller
+ *
+ * This file is part of AudaSpace.
+ *
+ * AudaSpace is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * AudaSpace 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with AudaSpace.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ***** END LGPL LICENSE BLOCK *****
+ */
+
+#ifndef AUD_FFMPEGREADER
+#define AUD_FFMPEGREADER
+
+#include "AUD_IReader.h"
+class AUD_Buffer;
+struct AVCodecContext;
+extern "C" {
+#include <libavformat/avformat.h>
+}
+
+/**
+ * This class reads a sound file via ffmpeg.
+ * \warning Seeking may not be accurate! Moreover the position is updated after
+ *          a buffer reading call. So calling getPosition right after seek
+ *          normally results in a wrong value.
+ * \warning Playback of an ogg with some outdated ffmpeg versions results in a
+ *          segfault on windows.
+ */
+class AUD_FFMPEGReader : public AUD_IReader
+{
+private:
+	/**
+	 * The current position in samples.
+	 */
+	int m_position;
+
+	/**
+	 * The playback buffer.
+	 */
+	AUD_Buffer *m_buffer;
+
+	/**
+	 * The specification of the audio data.
+	 */
+	AUD_Specs m_specs;
+
+	/**
+	 * The buffer for package reading.
+	 */
+	AUD_Buffer *m_pkgbuf;
+
+	/**
+	 * The count of samples still available from the last read package.
+	 */
+	int m_pkgbuf_left;
+
+	/**
+	 * The AVFormatContext structure for using ffmpeg.
+	 */
+	AVFormatContext* m_formatCtx;
+
+	/**
+	 * The AVCodecContext structure for using ffmpeg.
+	 */
+	AVCodecContext* m_codecCtx;
+
+	/**
+	 * The ByteIOContext to read the data from.
+	 */
+	ByteIOContext* m_byteiocontext;
+
+	/**
+	 * The stream ID in the file.
+	 */
+	int m_stream;
+
+	/**
+	 * Decodes a packet into the given buffer.
+	 * \param packet The AVPacket to decode.
+	 * \param buffer The target buffer.
+	 * \return The count of read bytes.
+	 */
+	int decode(AVPacket* packet, AUD_Buffer* buffer);
+
+public:
+	/**
+	 * Creates a new reader.
+	 * \param filename The path to the file to be read.
+	 * \exception AUD_Exception Thrown if the file specified does not exist or
+	 *            cannot be read with ffmpeg.
+	 */
+	AUD_FFMPEGReader(const char* filename);
+
+	/**
+	 * Creates a new reader.
+	 * \param buffer The buffer to read from.
+	 * \param size The size of the buffer.
+	 * \exception AUD_Exception Thrown if the buffer specified cannot be read
+	 *                          with ffmpeg.
+	 */
+	AUD_FFMPEGReader(unsigned char* buffer, int size);
+
+	/**
+	 * Destroys the reader and closes the file.
+	 */
+	virtual ~AUD_FFMPEGReader();
+
+	virtual bool isSeekable();
+	virtual void seek(int position);
+	virtual int getLength();
+	virtual int getPosition();
+	virtual AUD_Specs getSpecs();
+	virtual AUD_ReaderType getType();
+	virtual bool notify(AUD_Message &message);
+	virtual void read(int & length, sample_t* & buffer);
+};
+
+#endif //AUD_FFMPEGREADER