1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012 Sam Lantinga
4
5    This library is SDL_free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9
10    This library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public
16    License along with this library; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18
19    Sam Lantinga
20    slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24/* WAVE files are little-endian */
25
26/*******************************************/
27/* Define values for Microsoft WAVE format */
28/*******************************************/
29#define RIFF		0x46464952		/* "RIFF" */
30#define WAVE		0x45564157		/* "WAVE" */
31#define FACT		0x74636166		/* "fact" */
32#define LIST		0x5453494c		/* "LIST" */
33#define FMT		0x20746D66		/* "fmt " */
34#define DATA		0x61746164		/* "data" */
35#define PCM_CODE	0x0001
36#define MS_ADPCM_CODE	0x0002
37#define IMA_ADPCM_CODE	0x0011
38#define MP3_CODE	0x0055
39#define WAVE_MONO	1
40#define WAVE_STEREO	2
41
42/* Normally, these three chunks come consecutively in a WAVE file */
43typedef struct WaveFMT {
44/* Not saved in the chunk we read:
45	Uint32	FMTchunk;
46	Uint32	fmtlen;
47*/
48	Uint16	encoding;
49	Uint16	channels;		/* 1 = mono, 2 = stereo */
50	Uint32	frequency;		/* One of 11025, 22050, or 44100 Hz */
51	Uint32	byterate;		/* Average bytes per second */
52	Uint16	blockalign;		/* Bytes per sample block */
53	Uint16	bitspersample;		/* One of 8, 12, 16, or 4 for ADPCM */
54} WaveFMT;
55
56/* The general chunk found in the WAVE file */
57typedef struct Chunk {
58	Uint32 magic;
59	Uint32 length;
60	Uint8 *data;
61} Chunk;
62
63