2007-05-14 09:55:24 +00:00
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/*
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2004-01-21 07:46:34 +00:00
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** Copyright (C) 1999-2003 Erik de Castro Lopo <erikd@zip.com.au>
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2007-05-14 09:55:24 +00:00
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU Lesser General Public License as published by
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** the Free Software Foundation; either version 2.1 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU Lesser General Public License for more details.
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**
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** You should have received a copy of the GNU Lesser General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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** sndfile.h -- system-wide definitions
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**
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** API documentation is in the doc/ directory of the source code tarball
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2004-01-21 07:46:34 +00:00
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** and at http://www.zip.com.au/~erikd/libsndfile/api.html.
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2007-05-14 09:55:24 +00:00
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*/
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#ifndef SNDFILE_H
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#define SNDFILE_H
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/* This is the version 1.0.X header file. */
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#define SNDFILE_1
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#include <stdio.h>
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/* For the Metrowerks CodeWarrior Pro Compiler (mainly MacOS) */
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#if (defined (__MWERKS__))
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#include <unix.h>
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#else
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#include <sys/types.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* The following file types can be read and written.
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** A file type would consist of a major type (ie SF_FORMAT_WAV) bitwise
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** ORed with a minor type (ie SF_FORMAT_PCM). SF_FORMAT_TYPEMASK and
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** SF_FORMAT_SUBMASK can be used to separate the major and minor file
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** types.
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*/
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enum
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{ /* Major formats. */
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2004-01-21 07:46:34 +00:00
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SF_FORMAT_WAV = 0x010000, /* Microsoft WAV format (little endian). */
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2007-05-14 09:55:24 +00:00
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SF_FORMAT_AIFF = 0x020000, /* Apple/SGI AIFF format (big endian). */
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SF_FORMAT_AU = 0x030000, /* Sun/NeXT AU format (big endian). */
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SF_FORMAT_RAW = 0x040000, /* RAW PCM data. */
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SF_FORMAT_PAF = 0x050000, /* Ensoniq PARIS file format. */
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SF_FORMAT_SVX = 0x060000, /* Amiga IFF / SVX8 / SV16 format. */
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SF_FORMAT_NIST = 0x070000, /* Sphere NIST format. */
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SF_FORMAT_VOC = 0x080000, /* VOC files. */
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SF_FORMAT_IRCAM = 0x0A0000, /* Berkeley/IRCAM/CARL */
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SF_FORMAT_W64 = 0x0B0000, /* Sonic Foundry's 64 bit RIFF/WAV */
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SF_FORMAT_MAT4 = 0x0C0000, /* Matlab (tm) V4.2 / GNU Octave 2.0 */
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SF_FORMAT_MAT5 = 0x0D0000, /* Matlab (tm) V5.0 / GNU Octave 2.1 */
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SF_FORMAT_PVF = 0x0E0000, /* Portable Voice Format */
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SF_FORMAT_XI = 0x0F0000, /* Fasttracker 2 Extended Instrument */
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SF_FORMAT_HTK = 0x100000, /* HMM Tool Kit format */
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SF_FORMAT_SDS = 0x110000, /* Midi Sample Dump Standard */
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/* Subtypes from here on. */
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SF_FORMAT_PCM_S8 = 0x0001, /* Signed 8 bit data */
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SF_FORMAT_PCM_16 = 0x0002, /* Signed 16 bit data */
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SF_FORMAT_PCM_24 = 0x0003, /* Signed 24 bit data */
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SF_FORMAT_PCM_32 = 0x0004, /* Signed 32 bit data */
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SF_FORMAT_PCM_U8 = 0x0005, /* Unsigned 8 bit data (WAV and RAW only) */
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SF_FORMAT_FLOAT = 0x0006, /* 32 bit float data */
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SF_FORMAT_DOUBLE = 0x0007, /* 64 bit float data */
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SF_FORMAT_ULAW = 0x0010, /* U-Law encoded. */
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SF_FORMAT_ALAW = 0x0011, /* A-Law encoded. */
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SF_FORMAT_IMA_ADPCM = 0x0012, /* IMA ADPCM. */
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SF_FORMAT_MS_ADPCM = 0x0013, /* Microsoft ADPCM. */
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SF_FORMAT_GSM610 = 0x0020, /* GSM 6.10 encoding. */
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SF_FORMAT_VOX_ADPCM = 0x0021, /* OKI / Dialogix ADPCM */
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SF_FORMAT_G721_32 = 0x0030, /* 32kbs G721 ADPCM encoding. */
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SF_FORMAT_G723_24 = 0x0031, /* 24kbs G723 ADPCM encoding. */
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SF_FORMAT_G723_40 = 0x0032, /* 40kbs G723 ADPCM encoding. */
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SF_FORMAT_DWVW_12 = 0x0040, /* 12 bit Delta Width Variable Word encoding. */
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SF_FORMAT_DWVW_16 = 0x0041, /* 16 bit Delta Width Variable Word encoding. */
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SF_FORMAT_DWVW_24 = 0x0042, /* 24 bit Delta Width Variable Word encoding. */
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SF_FORMAT_DWVW_N = 0x0043, /* N bit Delta Width Variable Word encoding. */
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SF_FORMAT_DPCM_8 = 0x0050, /* 8 bit differential PCM (XI only) */
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SF_FORMAT_DPCM_16 = 0x0051, /* 16 bit differential PCM (XI only) */
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2004-01-21 07:46:34 +00:00
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2007-05-14 09:55:24 +00:00
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/* Endian-ness options. */
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SF_ENDIAN_FILE = 0x00000000, /* Default file endian-ness. */
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SF_ENDIAN_LITTLE = 0x10000000, /* Force little endian-ness. */
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SF_ENDIAN_BIG = 0x20000000, /* Force big endian-ness. */
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SF_ENDIAN_CPU = 0x30000000, /* Force CPU endian-ness. */
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SF_FORMAT_SUBMASK = 0x0000FFFF,
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SF_FORMAT_TYPEMASK = 0x0FFF0000,
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SF_FORMAT_ENDMASK = 0x30000000
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} ;
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/*
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** The following are the valid command numbers for the sf_command()
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** interface. The use of these commands is documented in the file
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** command.html in the doc directory of the source code distribution.
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*/
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enum
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{ SFC_GET_LIB_VERSION = 0x1000,
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SFC_GET_LOG_INFO = 0x1001,
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SFC_GET_NORM_DOUBLE = 0x1010,
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SFC_GET_NORM_FLOAT = 0x1011,
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SFC_SET_NORM_DOUBLE = 0x1012,
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SFC_SET_NORM_FLOAT = 0x1013,
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SFC_GET_SIMPLE_FORMAT_COUNT = 0x1020,
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SFC_GET_SIMPLE_FORMAT = 0x1021,
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SFC_GET_FORMAT_INFO = 0x1028,
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SFC_GET_FORMAT_MAJOR_COUNT = 0x1030,
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SFC_GET_FORMAT_MAJOR = 0x1031,
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SFC_GET_FORMAT_SUBTYPE_COUNT = 0x1032,
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SFC_GET_FORMAT_SUBTYPE = 0x1033,
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SFC_CALC_SIGNAL_MAX = 0x1040,
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SFC_CALC_NORM_SIGNAL_MAX = 0x1041,
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SFC_CALC_MAX_ALL_CHANNELS = 0x1042,
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SFC_CALC_NORM_MAX_ALL_CHANNELS = 0x1043,
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SFC_SET_ADD_PEAK_CHUNK = 0x1050,
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SFC_UPDATE_HEADER_NOW = 0x1060,
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SFC_SET_UPDATE_HEADER_AUTO = 0x1061,
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SFC_FILE_TRUNCATE = 0x1080,
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SFC_SET_RAW_START_OFFSET = 0x1090,
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SFC_SET_DITHER_ON_WRITE = 0x10A0,
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SFC_SET_DITHER_ON_READ = 0x10A1,
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SFC_GET_DITHER_INFO_COUNT = 0x10A2,
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SFC_GET_DITHER_INFO = 0x10A3,
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SFC_GET_EMBED_FILE_INFO = 0x10B0,
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SFC_SET_CLIPPING = 0x10C0,
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SFC_GET_CLIPPING = 0x10C1,
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SFC_GET_INSTRUMENT = 0x10D0,
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SFC_SET_INSTRUMENT = 0x10D1,
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/* Following commands for testing only. */
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SFC_TEST_IEEE_FLOAT_REPLACE = 0x6001,
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/*
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** SFC_SET_ADD_* values are deprecated and will disappear at some
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** time in the future. They are guaranteed to be here up to and
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** including version 1.0.8 to avoid breakage of existng software.
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** They currently do nothing and will continue to do nothing.
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*/
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SFC_SET_ADD_DITHER_ON_WRITE = 0x1070,
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SFC_SET_ADD_DITHER_ON_READ = 0x1071
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} ;
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/*
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** String types that can be set and read from files. Not all file types
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** support this and even the file types which support one, may not support
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** all string types.
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*/
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enum
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{ SF_STR_TITLE = 0x01,
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SF_STR_COPYRIGHT = 0x02,
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SF_STR_SOFTWARE = 0x03,
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SF_STR_ARTIST = 0x04,
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SF_STR_COMMENT = 0x05,
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SF_STR_DATE = 0x06
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} ;
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enum
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{ /* True and false */
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SF_FALSE = 0,
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SF_TRUE = 1,
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/* Modes for opening files. */
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SFM_READ = 0x10,
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SFM_WRITE = 0x20,
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2004-01-21 07:46:34 +00:00
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SFM_RDWR = 0x30
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2007-05-14 09:55:24 +00:00
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} ;
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2004-01-21 07:46:34 +00:00
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/* Pubic error values. These are guaranteed to remain unchanged for the duration
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2007-05-14 09:55:24 +00:00
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** of the library major version number.
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** There are also a large number of private error numbers which are internal to
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** the library which can change at any time.
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*/
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enum
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{ SF_ERR_NO_ERROR = 0,
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SF_ERR_UNRECOGNISED_FORMAT = 1,
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2004-01-21 07:46:34 +00:00
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SF_ERR_SYSTEM = 2
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2007-05-14 09:55:24 +00:00
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} ;
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/* A SNDFILE* pointer can be passed around much like stdio.h's FILE* pointer. */
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typedef struct SNDFILE_tag SNDFILE ;
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/* The following typedef is system specific and is defined when libsndfile is.
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2004-01-21 07:46:34 +00:00
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** compiled. sf_count_t can be one of loff_t (Linux), off_t (*BSD),
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2007-05-14 09:55:24 +00:00
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** off64_t (Solaris), __int64_t (Win32) etc.
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*/
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typedef @TYPEOF_SF_COUNT_T@ sf_count_t ;
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#define SF_COUNT_MAX @SF_COUNT_MAX@
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/* A pointer to a SF_INFO structure is passed to sf_open_read () and filled in.
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** On write, the SF_INFO structure is filled in by the user and passed into
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** sf_open_write ().
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*/
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struct SF_INFO
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{ sf_count_t frames ; /* Used to be called samples. Changed to avoid confusion. */
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int samplerate ;
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int channels ;
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int format ;
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int sections ;
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int seekable ;
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} ;
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typedef struct SF_INFO SF_INFO ;
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/* The SF_FORMAT_INFO struct is used to retrieve information about the sound
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** file formats libsndfile supports using the sf_command () interface.
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**
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** Using this interface will allow applications to support new file formats
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** and encoding types when libsndfile is upgraded, without requiring
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** re-compilation of the application.
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**
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** Please consult the libsndfile documentation (particularly the information
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** on the sf_command () interface) for examples of its use.
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*/
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typedef struct
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{ int format ;
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const char *name ;
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const char *extension ;
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} SF_FORMAT_INFO ;
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/*
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** Enums and typedefs for adding dither on read and write.
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** See the html documentation for sf_command(), SFC_SET_DITHER_ON_WRITE
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** and SFC_SET_DITHER_ON_READ.
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*/
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enum
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{ SFD_DEFAULT_LEVEL = 0,
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SFD_CUSTOM_LEVEL = 0x40000000,
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SFD_NO_DITHER = 500,
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SFD_WHITE = 501,
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SFD_TRIANGULAR_PDF = 502
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} ;
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typedef struct
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{ int type ;
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double level ;
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const char *name ;
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} SF_DITHER_INFO ;
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/* Struct used to retrieve information about a file embedded within a
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** larger file. See SFC_GET_EMBED_FILE_INFO.
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*/
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typedef struct
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{ sf_count_t offset ;
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sf_count_t length ;
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} SF_EMBED_FILE_INFO ;
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2004-01-21 07:46:34 +00:00
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/* Struct used to retrieve music sample information from a file.
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2007-05-14 09:55:24 +00:00
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*/
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typedef struct
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2004-01-21 07:46:34 +00:00
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{ int basenote ;
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int gain ;
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int sustain_mode ;
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int sustain_start, sustain_end;
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int release_mode ;
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int release_start, reslease_end ;
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2007-05-14 09:55:24 +00:00
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} SF_INSTRUMENT ;
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2004-01-21 07:46:34 +00:00
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/* sustain_mode and release_mode will be one of the following. */
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2007-05-14 09:55:24 +00:00
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2004-01-21 07:46:34 +00:00
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enum
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{ SF_LOOP_NONE = 800,
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SF_LOOP_FORWARD,
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SF_LOOP_BACKWARD,
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2007-05-14 09:55:24 +00:00
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} ;
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/* Open the specified file for read, write or both. On error, this will
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** return a NULL pointer. To find the error number, pass a NULL SNDFILE
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** to sf_perror () or sf_error_str ().
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** All calls to sf_open() should be matched with a call to sf_close().
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*/
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SNDFILE* sf_open (const char *path, int mode, SF_INFO *sfinfo) ;
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/* Use the existing file descriptor to create a SNDFILE object. If close_desc
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** is TRUE, the file descriptor will be closed when sf_close() is called. If
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** it is FALSE, the descritor will not be closed.
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** When passed a descriptor like this, the library will assume that the start
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** of file header is at the current file offset. This allows sound files within
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** larger container files to be read and/or written.
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** On error, this will return a NULL pointer. To find the error number, pass a
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** NULL SNDFILE to sf_perror () or sf_error_str ().
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** All calls to sf_open_fd() should be matched with a call to sf_close().
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*/
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SNDFILE* sf_open_fd (int fd, int mode, SF_INFO *sfinfo, int close_desc) ;
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/* sf_error () returns a error number which can be translated to a text
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** string using sf_error_number().
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*/
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int sf_error (SNDFILE *sndfile) ;
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/* sf_strerror () returns to the caller a pointer to the current error message for
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** the given SNDFILE.
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*/
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const char* sf_strerror (SNDFILE *sndfile) ;
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/* sf_error_number () allows the retrieval of the error string for each internal
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** error number.
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**
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*/
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const char* sf_error_number (int errnum) ;
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/* The following three error functions are deprecated but they will remain in the
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** library for the forseeable future. The function sf_strerror() should be used
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** in their place.
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*/
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int sf_perror (SNDFILE *sndfile) ;
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int sf_error_str (SNDFILE *sndfile, char* str, size_t len) ;
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/* Return TRUE if fields of the SF_INFO struct are a valid combination of values. */
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int sf_command (SNDFILE *sndfile, int command, void *data, int datasize) ;
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/* Return TRUE if fields of the SF_INFO struct are a valid combination of values. */
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int sf_format_check (const SF_INFO *info) ;
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/* Seek within the waveform data chunk of the SNDFILE. sf_seek () uses
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** the same values for whence (SEEK_SET, SEEK_CUR and SEEK_END) as
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** stdio.h function fseek ().
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** An offset of zero with whence set to SEEK_SET will position the
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** read / write pointer to the first data sample.
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** On success sf_seek returns the current position in (multi-channel)
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** samples from the start of the file.
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** Please see the libsndfile documentation for moving the read pointer
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** separately from the write pointer on files open in mode SFM_RDWR.
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** On error all of these functions return -1.
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*/
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sf_count_t sf_seek (SNDFILE *sndfile, sf_count_t frames, int whence) ;
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/* Functions for retrieving and setting string data within sound files.
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** Not all file types support this features; AIFF and WAV do. For both
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** functions, the str_type parameter must be one of the SF_STR_* values
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** defined above.
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** On error, sf_set_string() returns non-zero while sf_get_string()
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** returns NULL.
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*/
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int sf_set_string (SNDFILE *sndfile, int str_type, const char* str) ;
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const char* sf_get_string (SNDFILE *sndfile, int str_type) ;
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/* Functions for reading/writing the waveform data of a sound file.
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*/
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sf_count_t sf_read_raw (SNDFILE *sndfile, void *ptr, sf_count_t bytes) ;
|
2004-01-21 07:46:34 +00:00
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sf_count_t sf_write_raw (SNDFILE *sndfile, void *ptr, sf_count_t bytes) ;
|
2007-05-14 09:55:24 +00:00
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/* Functions for reading and writing the data chunk in terms of frames.
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** The number of items actually read/written = frames * number of channels.
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** sf_xxxx_raw read/writes the raw data bytes from/to the file
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** sf_xxxx_short passes data in the native short format
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** sf_xxxx_int passes data in the native int format
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** sf_xxxx_float passes data in the native float format
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** sf_xxxx_double passes data in the native double format
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** All of these read/write function return number of frames read/written.
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*/
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sf_count_t sf_readf_short (SNDFILE *sndfile, short *ptr, sf_count_t frames) ;
|
2004-01-21 07:46:34 +00:00
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sf_count_t sf_writef_short (SNDFILE *sndfile, short *ptr, sf_count_t frames) ;
|
2007-05-14 09:55:24 +00:00
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sf_count_t sf_readf_int (SNDFILE *sndfile, int *ptr, sf_count_t frames) ;
|
2004-01-21 07:46:34 +00:00
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sf_count_t sf_writef_int (SNDFILE *sndfile, int *ptr, sf_count_t frames) ;
|
2007-05-14 09:55:24 +00:00
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sf_count_t sf_readf_float (SNDFILE *sndfile, float *ptr, sf_count_t frames) ;
|
2004-01-21 07:46:34 +00:00
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|
sf_count_t sf_writef_float (SNDFILE *sndfile, float *ptr, sf_count_t frames) ;
|
2007-05-14 09:55:24 +00:00
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sf_count_t sf_readf_double (SNDFILE *sndfile, double *ptr, sf_count_t frames) ;
|
2004-01-21 07:46:34 +00:00
|
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|
sf_count_t sf_writef_double (SNDFILE *sndfile, double *ptr, sf_count_t frames) ;
|
2007-05-14 09:55:24 +00:00
|
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|
|
/* Functions for reading and writing the data chunk in terms of items.
|
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|
|
** Otherwise similar to above.
|
|
|
|
** All of these read/write function return number of items read/written.
|
|
|
|
*/
|
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|
|
sf_count_t sf_read_short (SNDFILE *sndfile, short *ptr, sf_count_t items) ;
|
2004-01-21 07:46:34 +00:00
|
|
|
sf_count_t sf_write_short (SNDFILE *sndfile, short *ptr, sf_count_t items) ;
|
2007-05-14 09:55:24 +00:00
|
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|
sf_count_t sf_read_int (SNDFILE *sndfile, int *ptr, sf_count_t items) ;
|
2004-01-21 07:46:34 +00:00
|
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|
sf_count_t sf_write_int (SNDFILE *sndfile, int *ptr, sf_count_t items) ;
|
2007-05-14 09:55:24 +00:00
|
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|
sf_count_t sf_read_float (SNDFILE *sndfile, float *ptr, sf_count_t items) ;
|
2004-01-21 07:46:34 +00:00
|
|
|
sf_count_t sf_write_float (SNDFILE *sndfile, float *ptr, sf_count_t items) ;
|
2007-05-14 09:55:24 +00:00
|
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|
|
sf_count_t sf_read_double (SNDFILE *sndfile, double *ptr, sf_count_t items) ;
|
2004-01-21 07:46:34 +00:00
|
|
|
sf_count_t sf_write_double (SNDFILE *sndfile, double *ptr, sf_count_t items) ;
|
2007-05-14 09:55:24 +00:00
|
|
|
|
|
|
|
/* Close the SNDFILE and clean up all memory allocations associated with this
|
|
|
|
** file.
|
|
|
|
** Returns 0 on success, or an error number.
|
|
|
|
*/
|
|
|
|
|
|
|
|
int sf_close (SNDFILE *sndfile) ;
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
} /* extern "C" */
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
|
|
#endif /* SNDFILE_H */
|