diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/audio/SDL_wave.h')
| -rw-r--r-- | distrib/sdl-1.2.15/src/audio/SDL_wave.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/audio/SDL_wave.h b/distrib/sdl-1.2.15/src/audio/SDL_wave.h new file mode 100644 index 0000000..53b12e7 --- /dev/null +++ b/distrib/sdl-1.2.15/src/audio/SDL_wave.h @@ -0,0 +1,62 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is SDL_free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +/* 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 MP3_CODE 0x0055 +#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; +} Chunk; + |