paulstretch_cpp/Input/MP3InputS.h

/*
  Copyright (C) 2006-2011 Nasca Octavian Paul
  Author: Nasca Octavian Paul

  This program is free software; you can redistribute it and/or modify
  it under the terms of version 2 of the GNU General Public License 
  as published by the Free Software Foundation.

  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 (version 2) for more details.

  You should have received a copy of the GNU General Public License (version 2)
  along with this program; if not, write to the Free Software Foundation,
  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
*/

#ifndef MP3_INPUT_H
#define MP3_INPUT_H
#include <string>
#include <stdio.h>
#include <mad.h>
#include "InputS.h"


class MP3InputS:public InputS{
    public:
	MP3InputS();
	~MP3InputS();
	
	bool open(std::string filename);
	void close();

	int read(int nsmps,short int *smps);
	void seek(double pos);//0=start,1.0=end
	
    private:
	void convertsmps(int nsmps, short int *smps,int pcmstart);
	short int madpcm2short(mad_fixed_t x);
	int pcm_remained;
    
	bool MP3_opened;
	struct mad_stream stream;
	struct mad_frame frame;
	struct mad_synth synth;
	FILE *f;
	unsigned char *buf;
    
};
#endif