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diff --git a/intern/audaspace/ffmpeg/AUD_FFMPEGWriter.h b/intern/audaspace/ffmpeg/AUD_FFMPEGWriter.h
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+++ b/intern/audaspace/ffmpeg/AUD_FFMPEGWriter.h
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+/*
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * Copyright 2009-2011 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 General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Audaspace; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file audaspace/ffmpeg/AUD_FFMPEGWriter.h
+ *  \ingroup audffmpeg
+ */
+
+
+#ifndef AUD_FFMPEGWRITER
+#define AUD_FFMPEGWRITER
+
+#include "AUD_ConverterFunctions.h"
+#include "AUD_Buffer.h"
+#include "AUD_IWriter.h"
+
+#include <string>
+
+struct AVCodecContext;
+extern "C" {
+#include <libavformat/avformat.h>
+}
+
+/**
+ * This class writes a sound file via ffmpeg.
+ */
+class AUD_FFMPEGWriter : public AUD_IWriter
+{
+private:
+	/**
+	 * The current position in samples.
+	 */
+	int m_position;
+
+	/**
+	 * The specification of the audio data.
+	 */
+	AUD_DeviceSpecs m_specs;
+
+	/**
+	 * The AVFormatContext structure for using ffmpeg.
+	 */
+	AVFormatContext* m_formatCtx;
+
+	/**
+	 * The AVCodecContext structure for using ffmpeg.
+	 */
+	AVCodecContext* m_codecCtx;
+
+	AVOutputFormat* m_outputFmt;
+
+	AVStream* m_stream;
+
+	AUD_Buffer m_input_buffer;
+
+	AUD_Buffer m_output_buffer;
+
+	unsigned int m_input_samples;
+
+	unsigned int m_input_size;
+
+	/**
+	 * Converter function.
+	 */
+	AUD_convert_f m_convert;
+
+	// hide copy constructor and operator=
+	AUD_FFMPEGWriter(const AUD_FFMPEGWriter&);
+	AUD_FFMPEGWriter& operator=(const AUD_FFMPEGWriter&);
+
+	void encode(sample_t* data);
+
+public:
+	/**
+	 * Creates a new writer.
+	 * \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_FFMPEGWriter(std::string filename, AUD_DeviceSpecs specs, AUD_Container format, AUD_Codec codec, unsigned int bitrate);
+
+	/**
+	 * Destroys the writer and closes the file.
+	 */
+	virtual ~AUD_FFMPEGWriter();
+
+	virtual int getPosition() const;
+	virtual AUD_DeviceSpecs getSpecs() const;
+	virtual void write(unsigned int length, sample_t* buffer);
+};
+
+#endif //AUD_FFMPEGWRITER