wavefile.hh

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/*
 * SubTimer header file
 *  Copyright (C) 2005 Peter Salvi
 *   Last modification: <2005.03.23., 16:20:44>
 *
 *  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef WAVEFILE_HH
#define WAVEFILE_HH

#include <qstring.h>

#include "common.hh"

#define MAX_PIXPERSEC 160.0

class QTime;

class WaveFile
{
public:

  WaveFile();
  virtual ~WaveFile();

  virtual bool open(QString fname, int xres) = 0;

  virtual void close() = 0;

  bool isOpen() const;

  virtual QTime length() const = 0;

  virtual size_t getPlayBufferSize(QTime const start, 
                                   QTime const end) const = 0;

  virtual void getPlayBuffer(QTime const start, char *buf, 
                             size_t &size) = 0;

  void getDispBuffer(QTime const start, char *buffer) const;

  virtual void waveFormat(WaveFormat &f) const = 0;

  void changeRes(int xres);

protected:
  bool opened;

  double pixpersec;

  size_t wavelength;

  char *wave;

  char *dispbuf;
};

#endif // WAVEFILE_HH

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