/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Library General Public

    License as published by the Free Software Foundation; either

    version 2 of the License, or (at your option) any later version.

    This library 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

    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public

    License along with this library; if not, write to the Free

    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga

    slouken@devolution.com

*/

#ifdef SAVE_RCSID

static char rcsid =

 "@(#) $Id$";

#endif

/* WAVE files are little-endian */

/*******************************************/

/* Define values for Microsoft WAVE format */

/*******************************************/

#define RIFF		0x46464952		/* "RIFF" */

#define WAVE		0x45564157		/* "WAVE" */

#define FACT		0x74636166		/* "fact" */

#define LIST		0x5453494c		/* "LIST" */

#define FMT		0x20746D66		/* "fmt " */

#define DATA		0x61746164		/* "data" */

#define PCM_CODE	0x0001

#define MS_ADPCM_CODE	0x0002

#define IMA_ADPCM_CODE	0x0011

#define WAVE_MONO	1

#define WAVE_STEREO	2

/* Normally, these three chunks come consecutively in a WAVE file */

typedef struct WaveFMT {

/* Not saved in the chunk we read:

	Uint32	FMTchunk;

	Uint32	fmtlen;

*/

	Uint16	encoding;	

	Uint16	channels;		/* 1 = mono, 2 = stereo */

	Uint32	frequency;		/* One of 11025, 22050, or 44100 Hz */

	Uint32	byterate;		/* Average bytes per second */

	Uint16	blockalign;		/* Bytes per sample block */

	Uint16	bitspersample;		/* One of 8, 12, 16, or 4 for ADPCM */

} WaveFMT;

/* The general chunk found in the WAVE file */

typedef struct Chunk {

	Uint32 magic;

	Uint32 length;

	Uint8 *data;			/* Data includes magic and length */

} Chunk;