2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
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.
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.
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
22 #include "SDL_config.h"
24 /* WAVE files are little-endian */
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
42 /* Normally, these three chunks come consecutively in a WAVE file */
43 typedef struct WaveFMT {
44 /* Not saved in the chunk we read:
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 */
56 /* The general chunk found in the WAVE file */
57 typedef struct Chunk {