ref: 504e4423e780b4a3e7904e406c43612b96a15702
dir: /Win32/sndfile.h/
/* ** Copyright (C) 1999-2004 Erik de Castro Lopo <[email protected]> ** ** This program is 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 program 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 program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* ** sndfile.h -- system-wide definitions ** ** API documentation is in the doc/ directory of the source code tarball ** and at http://www.mega-nerd.com/libsndfile/api.html. */ #ifndef SNDFILE_H #define SNDFILE_H /* This is the version 1.0.X header file. */ #define SNDFILE_1 #include <stdio.h> /* For the Metrowerks CodeWarrior Pro Compiler (mainly MacOS) */ #if (defined (__MWERKS__)) #include <unix.h> #else #include <sys/types.h> #endif #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ /* The following file types can be read and written. ** A file type would consist of a major type (ie SF_FORMAT_WAV) bitwise ** ORed with a minor type (ie SF_FORMAT_PCM). SF_FORMAT_TYPEMASK and ** SF_FORMAT_SUBMASK can be used to separate the major and minor file ** types. */ enum { /* Major formats. */ SF_FORMAT_WAV = 0x010000, /* Microsoft WAV format (little endian). */ SF_FORMAT_AIFF = 0x020000, /* Apple/SGI AIFF format (big endian). */ SF_FORMAT_AU = 0x030000, /* Sun/NeXT AU format (big endian). */ SF_FORMAT_RAW = 0x040000, /* RAW PCM data. */ SF_FORMAT_PAF = 0x050000, /* Ensoniq PARIS file format. */ SF_FORMAT_SVX = 0x060000, /* Amiga IFF / SVX8 / SV16 format. */ SF_FORMAT_NIST = 0x070000, /* Sphere NIST format. */ SF_FORMAT_VOC = 0x080000, /* VOC files. */ SF_FORMAT_IRCAM = 0x0A0000, /* Berkeley/IRCAM/CARL */ SF_FORMAT_W64 = 0x0B0000, /* Sonic Foundry's 64 bit RIFF/WAV */ SF_FORMAT_MAT4 = 0x0C0000, /* Matlab (tm) V4.2 / GNU Octave 2.0 */ SF_FORMAT_MAT5 = 0x0D0000, /* Matlab (tm) V5.0 / GNU Octave 2.1 */ SF_FORMAT_PVF = 0x0E0000, /* Portable Voice Format */ SF_FORMAT_XI = 0x0F0000, /* Fasttracker 2 Extended Instrument */ SF_FORMAT_HTK = 0x100000, /* HMM Tool Kit format */ SF_FORMAT_SDS = 0x110000, /* Midi Sample Dump Standard */ /* Subtypes from here on. */ SF_FORMAT_PCM_S8 = 0x0001, /* Signed 8 bit data */ SF_FORMAT_PCM_16 = 0x0002, /* Signed 16 bit data */ SF_FORMAT_PCM_24 = 0x0003, /* Signed 24 bit data */ SF_FORMAT_PCM_32 = 0x0004, /* Signed 32 bit data */ SF_FORMAT_PCM_U8 = 0x0005, /* Unsigned 8 bit data (WAV and RAW only) */ SF_FORMAT_FLOAT = 0x0006, /* 32 bit float data */ SF_FORMAT_DOUBLE = 0x0007, /* 64 bit float data */ SF_FORMAT_ULAW = 0x0010, /* U-Law encoded. */ SF_FORMAT_ALAW = 0x0011, /* A-Law encoded. */ SF_FORMAT_IMA_ADPCM = 0x0012, /* IMA ADPCM. */ SF_FORMAT_MS_ADPCM = 0x0013, /* Microsoft ADPCM. */ SF_FORMAT_GSM610 = 0x0020, /* GSM 6.10 encoding. */ SF_FORMAT_VOX_ADPCM = 0x0021, /* OKI / Dialogix ADPCM */ SF_FORMAT_G721_32 = 0x0030, /* 32kbs G721 ADPCM encoding. */ SF_FORMAT_G723_24 = 0x0031, /* 24kbs G723 ADPCM encoding. */ SF_FORMAT_G723_40 = 0x0032, /* 40kbs G723 ADPCM encoding. */ SF_FORMAT_DWVW_12 = 0x0040, /* 12 bit Delta Width Variable Word encoding. */ SF_FORMAT_DWVW_16 = 0x0041, /* 16 bit Delta Width Variable Word encoding. */ SF_FORMAT_DWVW_24 = 0x0042, /* 24 bit Delta Width Variable Word encoding. */ SF_FORMAT_DWVW_N = 0x0043, /* N bit Delta Width Variable Word encoding. */ SF_FORMAT_DPCM_8 = 0x0050, /* 8 bit differential PCM (XI only) */ SF_FORMAT_DPCM_16 = 0x0051, /* 16 bit differential PCM (XI only) */ /* Endian-ness options. */ SF_ENDIAN_FILE = 0x00000000, /* Default file endian-ness. */ SF_ENDIAN_LITTLE = 0x10000000, /* Force little endian-ness. */ SF_ENDIAN_BIG = 0x20000000, /* Force big endian-ness. */ SF_ENDIAN_CPU = 0x30000000, /* Force CPU endian-ness. */ SF_FORMAT_SUBMASK = 0x0000FFFF, SF_FORMAT_TYPEMASK = 0x0FFF0000, SF_FORMAT_ENDMASK = 0x30000000 } ; /* ** The following are the valid command numbers for the sf_command() ** interface. The use of these commands is documented in the file ** command.html in the doc directory of the source code distribution. */ enum { SFC_GET_LIB_VERSION = 0x1000, SFC_GET_LOG_INFO = 0x1001, SFC_GET_NORM_DOUBLE = 0x1010, SFC_GET_NORM_FLOAT = 0x1011, SFC_SET_NORM_DOUBLE = 0x1012, SFC_SET_NORM_FLOAT = 0x1013, SFC_GET_SIMPLE_FORMAT_COUNT = 0x1020, SFC_GET_SIMPLE_FORMAT = 0x1021, SFC_GET_FORMAT_INFO = 0x1028, SFC_GET_FORMAT_MAJOR_COUNT = 0x1030, SFC_GET_FORMAT_MAJOR = 0x1031, SFC_GET_FORMAT_SUBTYPE_COUNT = 0x1032, SFC_GET_FORMAT_SUBTYPE = 0x1033, SFC_CALC_SIGNAL_MAX = 0x1040, SFC_CALC_NORM_SIGNAL_MAX = 0x1041, SFC_CALC_MAX_ALL_CHANNELS = 0x1042, SFC_CALC_NORM_MAX_ALL_CHANNELS = 0x1043, SFC_SET_ADD_PEAK_CHUNK = 0x1050, SFC_UPDATE_HEADER_NOW = 0x1060, SFC_SET_UPDATE_HEADER_AUTO = 0x1061, SFC_FILE_TRUNCATE = 0x1080, SFC_SET_RAW_START_OFFSET = 0x1090, SFC_SET_DITHER_ON_WRITE = 0x10A0, SFC_SET_DITHER_ON_READ = 0x10A1, SFC_GET_DITHER_INFO_COUNT = 0x10A2, SFC_GET_DITHER_INFO = 0x10A3, SFC_GET_EMBED_FILE_INFO = 0x10B0, SFC_SET_CLIPPING = 0x10C0, SFC_GET_CLIPPING = 0x10C1, SFC_GET_INSTRUMENT = 0x10D0, SFC_SET_INSTRUMENT = 0x10D1, /* Following commands for testing only. */ SFC_TEST_IEEE_FLOAT_REPLACE = 0x6001, /* ** SFC_SET_ADD_* values are deprecated and will disappear at some ** time in the future. They are guaranteed to be here up to and ** including version 1.0.8 to avoid breakage of existng software. ** They currently do nothing and will continue to do nothing. */ SFC_SET_ADD_DITHER_ON_WRITE = 0x1070, SFC_SET_ADD_DITHER_ON_READ = 0x1071 } ; /* ** String types that can be set and read from files. Not all file types ** support this and even the file types which support one, may not support ** all string types. */ enum { SF_STR_TITLE = 0x01, SF_STR_COPYRIGHT = 0x02, SF_STR_SOFTWARE = 0x03, SF_STR_ARTIST = 0x04, SF_STR_COMMENT = 0x05, SF_STR_DATE = 0x06 } ; enum { /* True and false */ SF_FALSE = 0, SF_TRUE = 1, /* Modes for opening files. */ SFM_READ = 0x10, SFM_WRITE = 0x20, SFM_RDWR = 0x30 } ; /* Pubic error values. These are guaranteed to remain unchanged for the duration ** of the library major version number. ** There are also a large number of private error numbers which are internal to ** the library which can change at any time. */ enum { SF_ERR_NO_ERROR = 0, SF_ERR_UNRECOGNISED_FORMAT = 1, SF_ERR_SYSTEM = 2 } ; /* A SNDFILE* pointer can be passed around much like stdio.h's FILE* pointer. */ typedef struct SNDFILE_tag SNDFILE ; /* The following typedef is system specific and is defined when libsndfile is. ** compiled. sf_count_t can be one of loff_t (Linux), off_t (*BSD), ** off64_t (Solaris), __int64_t (Win32) etc. */ typedef __int64 sf_count_t ; #define SF_COUNT_MAX 0x7FFFFFFFFFFFFFFFi64 /* A pointer to a SF_INFO structure is passed to sf_open_read () and filled in. ** On write, the SF_INFO structure is filled in by the user and passed into ** sf_open_write (). */ struct SF_INFO { sf_count_t frames ; /* Used to be called samples. Changed to avoid confusion. */ int samplerate ; int channels ; int format ; int sections ; int seekable ; } ; typedef struct SF_INFO SF_INFO ; /* The SF_FORMAT_INFO struct is used to retrieve information about the sound ** file formats libsndfile supports using the sf_command () interface. ** ** Using this interface will allow applications to support new file formats ** and encoding types when libsndfile is upgraded, without requiring ** re-compilation of the application. ** ** Please consult the libsndfile documentation (particularly the information ** on the sf_command () interface) for examples of its use. */ typedef struct { int format ; const char *name ; const char *extension ; } SF_FORMAT_INFO ; /* ** Enums and typedefs for adding dither on read and write. ** See the html documentation for sf_command(), SFC_SET_DITHER_ON_WRITE ** and SFC_SET_DITHER_ON_READ. */ enum { SFD_DEFAULT_LEVEL = 0, SFD_CUSTOM_LEVEL = 0x40000000, SFD_NO_DITHER = 500, SFD_WHITE = 501, SFD_TRIANGULAR_PDF = 502 } ; typedef struct { int type ; double level ; const char *name ; } SF_DITHER_INFO ; /* Struct used to retrieve information about a file embedded within a ** larger file. See SFC_GET_EMBED_FILE_INFO. */ typedef struct { sf_count_t offset ; sf_count_t length ; } SF_EMBED_FILE_INFO ; /* Struct used to retrieve music sample information from a file. */ typedef struct { int basenote ; int gain ; int sustain_mode ; int sustain_start, sustain_end ; int release_mode ; int release_start, reslease_end ; } SF_INSTRUMENT ; /* sustain_mode and release_mode will be one of the following. */ enum { SF_LOOP_NONE = 800, SF_LOOP_FORWARD, SF_LOOP_BACKWARD, } ; /* Open the specified file for read, write or both. On error, this will ** return a NULL pointer. To find the error number, pass a NULL SNDFILE ** to sf_perror () or sf_error_str (). ** All calls to sf_open() should be matched with a call to sf_close(). */ SNDFILE* sf_open (const char *path, int mode, SF_INFO *sfinfo) ; /* Use the existing file descriptor to create a SNDFILE object. If close_desc ** is TRUE, the file descriptor will be closed when sf_close() is called. If ** it is FALSE, the descritor will not be closed. ** When passed a descriptor like this, the library will assume that the start ** of file header is at the current file offset. This allows sound files within ** larger container files to be read and/or written. ** On error, this will return a NULL pointer. To find the error number, pass a ** NULL SNDFILE to sf_perror () or sf_error_str (). ** All calls to sf_open_fd() should be matched with a call to sf_close(). */ SNDFILE* sf_open_fd (int fd, int mode, SF_INFO *sfinfo, int close_desc) ; /* sf_error () returns a error number which can be translated to a text ** string using sf_error_number(). */ int sf_error (SNDFILE *sndfile) ; /* sf_strerror () returns to the caller a pointer to the current error message for ** the given SNDFILE. */ const char* sf_strerror (SNDFILE *sndfile) ; /* sf_error_number () allows the retrieval of the error string for each internal ** error number. ** */ const char* sf_error_number (int errnum) ; /* The following three error functions are deprecated but they will remain in the ** library for the forseeable future. The function sf_strerror() should be used ** in their place. */ int sf_perror (SNDFILE *sndfile) ; int sf_error_str (SNDFILE *sndfile, char* str, size_t len) ; /* Return TRUE if fields of the SF_INFO struct are a valid combination of values. */ int sf_command (SNDFILE *sndfile, int command, void *data, int datasize) ; /* Return TRUE if fields of the SF_INFO struct are a valid combination of values. */ int sf_format_check (const SF_INFO *info) ; /* Seek within the waveform data chunk of the SNDFILE. sf_seek () uses ** the same values for whence (SEEK_SET, SEEK_CUR and SEEK_END) as ** stdio.h function fseek (). ** An offset of zero with whence set to SEEK_SET will position the ** read / write pointer to the first data sample. ** On success sf_seek returns the current position in (multi-channel) ** samples from the start of the file. ** Please see the libsndfile documentation for moving the read pointer ** separately from the write pointer on files open in mode SFM_RDWR. ** On error all of these functions return -1. */ sf_count_t sf_seek (SNDFILE *sndfile, sf_count_t frames, int whence) ; /* Functions for retrieving and setting string data within sound files. ** Not all file types support this features; AIFF and WAV do. For both ** functions, the str_type parameter must be one of the SF_STR_* values ** defined above. ** On error, sf_set_string() returns non-zero while sf_get_string() ** returns NULL. */ int sf_set_string (SNDFILE *sndfile, int str_type, const char* str) ; const char* sf_get_string (SNDFILE *sndfile, int str_type) ; /* Functions for reading/writing the waveform data of a sound file. */ sf_count_t sf_read_raw (SNDFILE *sndfile, void *ptr, sf_count_t bytes) ; sf_count_t sf_write_raw (SNDFILE *sndfile, void *ptr, sf_count_t bytes) ; /* Functions for reading and writing the data chunk in terms of frames. ** The number of items actually read/written = frames * number of channels. ** sf_xxxx_raw read/writes the raw data bytes from/to the file ** sf_xxxx_short passes data in the native short format ** sf_xxxx_int passes data in the native int format ** sf_xxxx_float passes data in the native float format ** sf_xxxx_double passes data in the native double format ** All of these read/write function return number of frames read/written. */ sf_count_t sf_readf_short (SNDFILE *sndfile, short *ptr, sf_count_t frames) ; sf_count_t sf_writef_short (SNDFILE *sndfile, short *ptr, sf_count_t frames) ; sf_count_t sf_readf_int (SNDFILE *sndfile, int *ptr, sf_count_t frames) ; sf_count_t sf_writef_int (SNDFILE *sndfile, int *ptr, sf_count_t frames) ; sf_count_t sf_readf_float (SNDFILE *sndfile, float *ptr, sf_count_t frames) ; sf_count_t sf_writef_float (SNDFILE *sndfile, float *ptr, sf_count_t frames) ; sf_count_t sf_readf_double (SNDFILE *sndfile, double *ptr, sf_count_t frames) ; sf_count_t sf_writef_double (SNDFILE *sndfile, double *ptr, sf_count_t frames) ; /* Functions for reading and writing the data chunk in terms of items. ** Otherwise similar to above. ** All of these read/write function return number of items read/written. */ sf_count_t sf_read_short (SNDFILE *sndfile, short *ptr, sf_count_t items) ; sf_count_t sf_write_short (SNDFILE *sndfile, short *ptr, sf_count_t items) ; sf_count_t sf_read_int (SNDFILE *sndfile, int *ptr, sf_count_t items) ; sf_count_t sf_write_int (SNDFILE *sndfile, int *ptr, sf_count_t items) ; sf_count_t sf_read_float (SNDFILE *sndfile, float *ptr, sf_count_t items) ; sf_count_t sf_write_float (SNDFILE *sndfile, float *ptr, sf_count_t items) ; sf_count_t sf_read_double (SNDFILE *sndfile, double *ptr, sf_count_t items) ; sf_count_t sf_write_double (SNDFILE *sndfile, double *ptr, sf_count_t items) ; /* 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 */ /* ** Do not edit or modify anything in this comment block. ** The arch-tag line is a file identity tag for the GNU Arch ** revision control system. ** ** arch-tag: 906bb197-18f2-4f66-a395-b4722bab5114 */