/*

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

*/

#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;