68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2015 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../SDL_internal.h"
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/* WAVE files are little-endian */
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/*******************************************/
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/* Define values for Microsoft WAVE format */
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/*******************************************/
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#define RIFF 0x46464952 /* "RIFF" */
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#define WAVE 0x45564157 /* "WAVE" */
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#define FACT 0x74636166 /* "fact" */
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#define LIST 0x5453494c /* "LIST" */
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#define BEXT 0x74786562 /* "bext" */
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#define JUNK 0x4B4E554A /* "JUNK" */
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#define FMT 0x20746D66 /* "fmt " */
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#define DATA 0x61746164 /* "data" */
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#define PCM_CODE 0x0001
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#define MS_ADPCM_CODE 0x0002
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#define IEEE_FLOAT_CODE 0x0003
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#define IMA_ADPCM_CODE 0x0011
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#define MP3_CODE 0x0055
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#define WAVE_MONO 1
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#define WAVE_STEREO 2
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/* Normally, these three chunks come consecutively in a WAVE file */
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typedef struct WaveFMT
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{
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/* Not saved in the chunk we read:
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Uint32 FMTchunk;
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Uint32 fmtlen;
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*/
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Uint16 encoding;
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Uint16 channels; /* 1 = mono, 2 = stereo */
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Uint32 frequency; /* One of 11025, 22050, or 44100 Hz */
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Uint32 byterate; /* Average bytes per second */
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Uint16 blockalign; /* Bytes per sample block */
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Uint16 bitspersample; /* One of 8, 12, 16, or 4 for ADPCM */
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} WaveFMT;
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/* The general chunk found in the WAVE file */
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typedef struct Chunk
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{
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Uint32 magic;
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Uint32 length;
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Uint8 *data;
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} Chunk;
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/* vi: set ts=4 sw=4 expandtab: */
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