19682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 29682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL - Simple DirectMedia Layer 39682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Copyright (C) 1997-2012 Sam Lantinga 49682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 59682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is SDL_free software; you can redistribute it and/or 69682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall modify it under the terms of the GNU Lesser General Public 79682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License as published by the Free Software Foundation; either 89682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall version 2.1 of the License, or (at your option) any later version. 99682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is distributed in the hope that it will be useful, 119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall but WITHOUT ANY WARRANTY; without even the implied warranty of 129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Lesser General Public License for more details. 149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall You should have received a copy of the GNU Lesser General Public 169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License along with this library; if not, write to the Free Software 179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Sam Lantinga 209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall slouken@libsdl.org 219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_config.h" 239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* WAVE files are little-endian */ 259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/*******************************************/ 279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Define values for Microsoft WAVE format */ 289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/*******************************************/ 299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define RIFF 0x46464952 /* "RIFF" */ 309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define WAVE 0x45564157 /* "WAVE" */ 319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define FACT 0x74636166 /* "fact" */ 329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define LIST 0x5453494c /* "LIST" */ 339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define FMT 0x20746D66 /* "fmt " */ 349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define DATA 0x61746164 /* "data" */ 359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define PCM_CODE 0x0001 369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define MS_ADPCM_CODE 0x0002 379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define IMA_ADPCM_CODE 0x0011 389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define MP3_CODE 0x0055 399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define WAVE_MONO 1 409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define WAVE_STEREO 2 419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Normally, these three chunks come consecutively in a WAVE file */ 439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Halltypedef struct WaveFMT { 449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Not saved in the chunk we read: 459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 FMTchunk; 469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 fmtlen; 479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint16 encoding; 499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint16 channels; /* 1 = mono, 2 = stereo */ 509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 frequency; /* One of 11025, 22050, or 44100 Hz */ 519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 byterate; /* Average bytes per second */ 529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint16 blockalign; /* Bytes per sample block */ 539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint16 bitspersample; /* One of 8, 12, 16, or 4 for ADPCM */ 549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} WaveFMT; 559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* The general chunk found in the WAVE file */ 579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Halltypedef struct Chunk { 589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 magic; 599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 length; 609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint8 *data; 619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} Chunk; 629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 63