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AUD_DoubleReader.h

/*
 * $Id$
 *
 * ***** 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_DOUBLEREADER
#define AUD_DOUBLEREADER

#include "AUD_IReader.h"
class AUD_Buffer;

/**
 * This reader plays two readers with the same specs sequently.
 */
00035 class AUD_DoubleReader : public AUD_IReader
{
private:
      /**
       * The first reader.
       */
00041       AUD_IReader* m_reader1;

      /**
       * The second reader.
       */
00046       AUD_IReader* m_reader2;

      /**
       * Whether we've reached the end of the first reader.
       */
00051       bool m_finished1;

      /**
       * The playback buffer for the intersecting part.
       */
00056       AUD_Buffer* m_buffer;

public:
      /**
       * Creates a new ping pong reader.
       * \param reader1 The first reader to read from.
       * \param reader2 The second reader to read from.
       * \exception AUD_Exception Thrown if one of the reader specified is NULL
       *             or the specs from the readers differ.
       */
      AUD_DoubleReader(AUD_IReader* reader1, AUD_IReader* reader2);

      /**
       * Destroys the reader.
       */
      virtual ~AUD_DoubleReader();

      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_DOUBLEREADER

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