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/*
Audio File Library
Copyright (C) 1998, Michael Pruett <michael@68k.org>
Copyright (C) 2000, Silicon Graphics, Inc.
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 Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307 USA.
*/
/*
wave.h
This file contains structures and constants pertinent to the RIFF
WAVE file format.
*/
#ifndef WAVE_H
#define WAVE_H
/* These constants are from RFC 2361. */
enum
{
WAVE_FORMAT_UNKNOWN = 0x0000, /* Microsoft Unknown Wave Format */
WAVE_FORMAT_PCM = 0x0001, /* Microsoft PCM Format */
WAVE_FORMAT_ADPCM = 0x0002, /* Microsoft ADPCM Format */
WAVE_FORMAT_IEEE_FLOAT = 0x0003, /* IEEE Float */
WAVE_FORMAT_VSELP = 0x0004, /* Compaq Computer's VSELP */
WAVE_FORMAT_IBM_CVSD = 0x0005, /* IBM CVSD */
WAVE_FORMAT_ALAW = 0x0006, /* Microsoft ALAW */
WAVE_FORMAT_MULAW = 0x0007, /* Microsoft MULAW */
WAVE_FORMAT_OKI_ADPCM = 0x0010, /* OKI ADPCM */
WAVE_FORMAT_DVI_ADPCM = 0x0011, /* Intel's DVI ADPCM */
WAVE_FORMAT_MEDIASPACE_ADPCM = 0x0012, /* Videologic's MediaSpace ADPCM */
WAVE_FORMAT_SIERRA_ADPCM = 0x0013, /* Sierra ADPCM */
WAVE_FORMAT_G723_ADPCM = 0x0014, /* G.723 ADPCM */
WAVE_FORMAT_DIGISTD = 0x0015, /* DSP Solutions' DIGISTD */
WAVE_FORMAT_DIGIFIX = 0x0016, /* DSP Solutions' DIGIFIX */
WAVE_FORMAT_DIALOGIC_OKI_ADPCM = 0x0017, /* Dialogic OKI ADPCM */
WAVE_FORMAT_MEDIAVISION_ADPCM = 0x0018, /* MediaVision ADPCM */
WAVE_FORMAT_CU_CODEC = 0x0019, /* HP CU */
WAVE_FORMAT_YAMAHA_ADPCM = 0x0020, /* Yamaha ADPCM */
WAVE_FORMAT_SONARC = 0x0021, /* Speech Compression's Sonarc */
WAVE_FORMAT_DSP_TRUESPEECH = 0x0022, /* DSP Group's True Speech */
WAVE_FORMAT_ECHOSC1 = 0x0023, /* Echo Speech's EchoSC1 */
WAVE_FORMAT_AUDIOFILE_AF36 = 0x0024, /* Audiofile AF36 */
WAVE_FORMAT_APTX = 0x0025, /* APTX */
WAVE_FORMAT_DOLBY_AC2 = 0x0030, /* Dolby AC2 */
WAVE_FORMAT_GSM610 = 0x0031, /* GSM610 */
WAVE_FORMAT_MSNAUDIO = 0x0032, /* MSNAudio */
WAVE_FORMAT_ANTEX_ADPCME = 0x0033, /* Antex ADPCME */
WAVE_FORMAT_MPEG = 0x0050, /* MPEG */
WAVE_FORMAT_MPEGLAYER3 = 0x0055, /* MPEG layer 3 */
WAVE_FORMAT_LUCENT_G723 = 0x0059, /* Lucent G.723 */
WAVE_FORMAT_G726_ADPCM = 0x0064, /* G.726 ADPCM */
WAVE_FORMAT_G722_ADPCM = 0x0065, /* G.722 ADPCM */
IBM_FORMAT_MULAW = 0x0101,
IBM_FORMAT_ALAW = 0x0102,
IBM_FORMAT_ADPCM = 0x0103,
WAVE_FORMAT_CREATIVE_ADPCM = 0x0200
};
#define _AF_WAVE_NUM_INSTPARAMS 7
#define _AF_WAVE_NUM_COMPTYPES 2
bool _af_wave_recognize (AFvirtualfile *fh);
status _af_wave_read_init (AFfilesetup, AFfilehandle);
status _af_wave_write_init (AFfilesetup, AFfilehandle);
bool _af_wave_update (AFfilehandle);
AFfilesetup _af_wave_complete_setup (AFfilesetup);
bool _af_wave_instparam_valid (AFfilehandle, AUpvlist, int);
typedef struct _WAVEInfo
{
AFfileoffset factOffset; /* start of fact (frame count) chunk */
AFfileoffset miscellaneousStartOffset;
AFfileoffset totalMiscellaneousSize;
AFfileoffset markOffset;
AFfileoffset dataSizeOffset;
/*
The following information is specified in the format
chunk and is for use with compressed data formats.
*/
u_int32_t blockAlign, samplesPerBlock;
/*
The index into the coefficient array is of type
u_int8_t, so we can safely limit msadpcmCoefficients to
be 256 coefficient pairs.
*/
int16_t msadpcmCoefficients[256][2];
} _WAVEInfo;
#endif
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