| /* |
| 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@libsdl.org |
| */ |
| |
| #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; |
| |
