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Diffstat (limited to 'libsndfile.64/include/sndfile.h')
| -rw-r--r-- | libsndfile.64/include/sndfile.h | 857 |
1 files changed, 0 insertions, 857 deletions
diff --git a/libsndfile.64/include/sndfile.h b/libsndfile.64/include/sndfile.h deleted file mode 100644 index 8a60fb09..00000000 --- a/libsndfile.64/include/sndfile.h +++ /dev/null @@ -1,857 +0,0 @@ -/* -** Copyright (C) 1999-2016 Erik de Castro Lopo <erikd@mega-nerd.com> -** -** 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> -#include <stdint.h> -#include <sys/types.h> - -#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 default). */ - 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 */ - SF_FORMAT_AVR = 0x120000, /* Audio Visual Research */ - SF_FORMAT_WAVEX = 0x130000, /* MS WAVE with WAVEFORMATEX */ - SF_FORMAT_SD2 = 0x160000, /* Sound Designer 2 */ - SF_FORMAT_FLAC = 0x170000, /* FLAC lossless file format */ - SF_FORMAT_CAF = 0x180000, /* Core Audio File format */ - SF_FORMAT_WVE = 0x190000, /* Psion WVE format */ - SF_FORMAT_OGG = 0x200000, /* Xiph OGG container */ - SF_FORMAT_MPC2K = 0x210000, /* Akai MPC 2000 sampler */ - SF_FORMAT_RF64 = 0x220000, /* RF64 WAV file */ - - /* 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) */ - - SF_FORMAT_VORBIS = 0x0060, /* Xiph Vorbis encoding. */ - - SF_FORMAT_ALAC_16 = 0x0070, /* Apple Lossless Audio Codec (16 bit). */ - SF_FORMAT_ALAC_20 = 0x0071, /* Apple Lossless Audio Codec (20 bit). */ - SF_FORMAT_ALAC_24 = 0x0072, /* Apple Lossless Audio Codec (24 bit). */ - SF_FORMAT_ALAC_32 = 0x0073, /* Apple Lossless Audio Codec (32 bit). */ - - /* 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_CURRENT_SF_INFO = 0x1002, - - - SFC_GET_NORM_DOUBLE = 0x1010, - SFC_GET_NORM_FLOAT = 0x1011, - SFC_SET_NORM_DOUBLE = 0x1012, - SFC_SET_NORM_FLOAT = 0x1013, - SFC_SET_SCALE_FLOAT_INT_READ = 0x1014, - SFC_SET_SCALE_INT_FLOAT_WRITE = 0x1015, - - 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_GET_SIGNAL_MAX = 0x1044, - SFC_GET_MAX_ALL_CHANNELS = 0x1045, - - SFC_SET_ADD_PEAK_CHUNK = 0x1050, - SFC_SET_ADD_HEADER_PAD_CHUNK = 0x1051, - - 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_CUE_COUNT = 0x10CD, - SFC_GET_CUE = 0x10CE, - SFC_SET_CUE = 0x10CF, - - SFC_GET_INSTRUMENT = 0x10D0, - SFC_SET_INSTRUMENT = 0x10D1, - - SFC_GET_LOOP_INFO = 0x10E0, - - SFC_GET_BROADCAST_INFO = 0x10F0, - SFC_SET_BROADCAST_INFO = 0x10F1, - - SFC_GET_CHANNEL_MAP_INFO = 0x1100, - SFC_SET_CHANNEL_MAP_INFO = 0x1101, - - SFC_RAW_DATA_NEEDS_ENDSWAP = 0x1110, - - /* Support for Wavex Ambisonics Format */ - SFC_WAVEX_SET_AMBISONIC = 0x1200, - SFC_WAVEX_GET_AMBISONIC = 0x1201, - - /* - ** RF64 files can be set so that on-close, writable files that have less - ** than 4GB of data in them are converted to RIFF/WAV, as per EBU - ** recommendations. - */ - SFC_RF64_AUTO_DOWNGRADE = 0x1210, - - SFC_SET_VBR_ENCODING_QUALITY = 0x1300, - SFC_SET_COMPRESSION_LEVEL = 0x1301, - - /* Cart Chunk support */ - SFC_SET_CART_INFO = 0x1400, - SFC_GET_CART_INFO = 0x1401, - - /* 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 existing 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, - SF_STR_ALBUM = 0x07, - SF_STR_LICENSE = 0x08, - SF_STR_TRACKNUMBER = 0x09, - SF_STR_GENRE = 0x10 -} ; - -/* -** Use the following as the start and end index when doing metadata -** transcoding. -*/ - -#define SF_STR_FIRST SF_STR_TITLE -#define SF_STR_LAST SF_STR_GENRE - -enum -{ /* True and false */ - SF_FALSE = 0, - SF_TRUE = 1, - - /* Modes for opening files. */ - SFM_READ = 0x10, - SFM_WRITE = 0x20, - SFM_RDWR = 0x30, - - SF_AMBISONIC_NONE = 0x40, - SF_AMBISONIC_B_FORMAT = 0x41 -} ; - -/* Public 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, - SF_ERR_MALFORMED_FILE = 3, - SF_ERR_UNSUPPORTED_ENCODING = 4 -} ; - - -/* Channel map values (used with SFC_SET/GET_CHANNEL_MAP). -*/ - -enum -{ SF_CHANNEL_MAP_INVALID = 0, - SF_CHANNEL_MAP_MONO = 1, - SF_CHANNEL_MAP_LEFT, /* Apple calls this 'Left' */ - SF_CHANNEL_MAP_RIGHT, /* Apple calls this 'Right' */ - SF_CHANNEL_MAP_CENTER, /* Apple calls this 'Center' */ - SF_CHANNEL_MAP_FRONT_LEFT, - SF_CHANNEL_MAP_FRONT_RIGHT, - SF_CHANNEL_MAP_FRONT_CENTER, - SF_CHANNEL_MAP_REAR_CENTER, /* Apple calls this 'Center Surround', Msft calls this 'Back Center' */ - SF_CHANNEL_MAP_REAR_LEFT, /* Apple calls this 'Left Surround', Msft calls this 'Back Left' */ - SF_CHANNEL_MAP_REAR_RIGHT, /* Apple calls this 'Right Surround', Msft calls this 'Back Right' */ - SF_CHANNEL_MAP_LFE, /* Apple calls this 'LFEScreen', Msft calls this 'Low Frequency' */ - SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER, /* Apple calls this 'Left Center' */ - SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER, /* Apple calls this 'Right Center */ - SF_CHANNEL_MAP_SIDE_LEFT, /* Apple calls this 'Left Surround Direct' */ - SF_CHANNEL_MAP_SIDE_RIGHT, /* Apple calls this 'Right Surround Direct' */ - SF_CHANNEL_MAP_TOP_CENTER, /* Apple calls this 'Top Center Surround' */ - SF_CHANNEL_MAP_TOP_FRONT_LEFT, /* Apple calls this 'Vertical Height Left' */ - SF_CHANNEL_MAP_TOP_FRONT_RIGHT, /* Apple calls this 'Vertical Height Right' */ - SF_CHANNEL_MAP_TOP_FRONT_CENTER, /* Apple calls this 'Vertical Height Center' */ - SF_CHANNEL_MAP_TOP_REAR_LEFT, /* Apple and MS call this 'Top Back Left' */ - SF_CHANNEL_MAP_TOP_REAR_RIGHT, /* Apple and MS call this 'Top Back Right' */ - SF_CHANNEL_MAP_TOP_REAR_CENTER, /* Apple and MS call this 'Top Back Center' */ - - SF_CHANNEL_MAP_AMBISONIC_B_W, - SF_CHANNEL_MAP_AMBISONIC_B_X, - SF_CHANNEL_MAP_AMBISONIC_B_Y, - SF_CHANNEL_MAP_AMBISONIC_B_Z, - - SF_CHANNEL_MAP_MAX -} ; - - -/* 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 will be a 64 bit value when the underlying OS allows -** 64 bit file offsets. -** On windows, we need to allow the same header file to be compiler by both GCC -** and the Microsoft compiler. -*/ - -#if (defined (_MSCVER) || defined (_MSC_VER) && (_MSC_VER < 1310)) -typedef __int64 sf_count_t ; -#define SF_COUNT_MAX 0x7fffffffffffffffi64 -#else -typedef __int64 sf_count_t ; -#define SF_COUNT_MAX 0x7FFFFFFFFFFFFFFFLL -#endif - - -/* A pointer to a SF_INFO structure is passed to sf_open () and filled in. -** On write, the SF_INFO structure is filled in by the user and passed into -** sf_open (). -*/ - -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 cue marker information from a file -*/ - -typedef struct -{ int32_t indx ; - uint32_t position ; - int32_t fcc_chunk ; - int32_t chunk_start ; - int32_t block_start ; - uint32_t sample_offset ; - char name [256] ; -} SF_CUE_POINT ; - -#define SF_CUES_VAR(count) \ - struct \ - { uint32_t cue_count ; \ - SF_CUE_POINT cue_points [count] ; \ - } - -typedef SF_CUES_VAR (100) SF_CUES ; - -/* -** Structs used to retrieve music sample information from a file. -*/ - -enum -{ /* - ** The loop mode field in SF_INSTRUMENT will be one of the following. - */ - SF_LOOP_NONE = 800, - SF_LOOP_FORWARD, - SF_LOOP_BACKWARD, - SF_LOOP_ALTERNATING -} ; - -typedef struct -{ int gain ; - char basenote, detune ; - char velocity_lo, velocity_hi ; - char key_lo, key_hi ; - int loop_count ; - - struct - { int mode ; - uint32_t start ; - uint32_t end ; - uint32_t count ; - } loops [16] ; /* make variable in a sensible way */ -} SF_INSTRUMENT ; - - - -/* Struct used to retrieve loop information from a file.*/ -typedef struct -{ - short time_sig_num ; /* any positive integer > 0 */ - short time_sig_den ; /* any positive power of 2 > 0 */ - int loop_mode ; /* see SF_LOOP enum */ - - int num_beats ; /* this is NOT the amount of quarter notes !!!*/ - /* a full bar of 4/4 is 4 beats */ - /* a full bar of 7/8 is 7 beats */ - - float bpm ; /* suggestion, as it can be calculated using other fields:*/ - /* file's length, file's sampleRate and our time_sig_den*/ - /* -> bpms are always the amount of _quarter notes_ per minute */ - - int root_key ; /* MIDI note, or -1 for None */ - int future [6] ; -} SF_LOOP_INFO ; - - -/* Struct used to retrieve broadcast (EBU) information from a file. -** Strongly (!) based on EBU "bext" chunk format used in Broadcast WAVE. -*/ -#define SF_BROADCAST_INFO_VAR(coding_hist_size) \ - struct \ - { char description [256] ; \ - char originator [32] ; \ - char originator_reference [32] ; \ - char origination_date [10] ; \ - char origination_time [8] ; \ - uint32_t time_reference_low ; \ - uint32_t time_reference_high ; \ - short version ; \ - char umid [64] ; \ - char reserved [190] ; \ - uint32_t coding_history_size ; \ - char coding_history [coding_hist_size] ; \ - } - -/* SF_BROADCAST_INFO is the above struct with coding_history field of 256 bytes. */ -typedef SF_BROADCAST_INFO_VAR (256) SF_BROADCAST_INFO ; - -struct SF_CART_TIMER -{ char usage [4] ; - int32_t value ; -} ; - -typedef struct SF_CART_TIMER SF_CART_TIMER ; - -#define SF_CART_INFO_VAR(p_tag_text_size) \ - struct \ - { char version [4] ; \ - char title [64] ; \ - char artist [64] ; \ - char cut_id [64] ; \ - char client_id [64] ; \ - char category [64] ; \ - char classification [64] ; \ - char out_cue [64] ; \ - char start_date [10] ; \ - char start_time [8] ; \ - char end_date [10] ; \ - char end_time [8] ; \ - char producer_app_id [64] ; \ - char producer_app_version [64] ; \ - char user_def [64] ; \ - int32_t level_reference ; \ - SF_CART_TIMER post_timers [8] ; \ - char reserved [276] ; \ - char url [1024] ; \ - uint32_t tag_text_size ; \ - char tag_text [p_tag_text_size] ; \ - } - -typedef SF_CART_INFO_VAR (256) SF_CART_INFO ; - -/* Virtual I/O functionality. */ - -typedef sf_count_t (*sf_vio_get_filelen) (void *user_data) ; -typedef sf_count_t (*sf_vio_seek) (sf_count_t offset, int whence, void *user_data) ; -typedef sf_count_t (*sf_vio_read) (void *ptr, sf_count_t count, void *user_data) ; -typedef sf_count_t (*sf_vio_write) (const void *ptr, sf_count_t count, void *user_data) ; -typedef sf_count_t (*sf_vio_tell) (void *user_data) ; - -struct SF_VIRTUAL_IO -{ sf_vio_get_filelen get_filelen ; - sf_vio_seek seek ; - sf_vio_read read ; - sf_vio_write write ; - sf_vio_tell tell ; -} ; - -typedef struct SF_VIRTUAL_IO SF_VIRTUAL_IO ; - - -/* 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_strerror (). -** 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 descriptor 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_strerror (). -** 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) ; - -SNDFILE* sf_open_virtual (SF_VIRTUAL_IO *sfvirtual, int mode, SF_INFO *sfinfo, void *user_data) ; - - -/* 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 two error functions are deprecated but they will remain in the -** library for the foreseeable 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. -*/ - -enum -{ SF_SEEK_SET = SEEK_SET, - SF_SEEK_CUR = SEEK_CUR, - SF_SEEK_END = SEEK_END -} ; - -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) ; - - -/* Return the library version string. */ - -const char * sf_version_string (void) ; - -/* Return the current byterate at this point in the file. The byte rate in this -** case is the number of bytes per second of audio data. For instance, for a -** stereo, 18 bit PCM encoded file with an 16kHz sample rate, the byte rate -** would be 2 (stereo) * 2 (two bytes per sample) * 16000 => 64000 bytes/sec. -** For some file formats the returned value will be accurate and exact, for some -** it will be a close approximation, for some it will be the average bitrate for -** the whole file and for some it will be a time varying value that was accurate -** when the file was most recently read or written. -** To get the bitrate, multiple this value by 8. -** Returns -1 for unknown. -*/ -int sf_current_byterate (SNDFILE *sndfile) ; - -/* 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, const 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, const 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, const 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, const 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, const 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, const 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, const 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, const 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, const 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) ; - - -/* If the file is opened SFM_WRITE or SFM_RDWR, call fsync() on the file -** to force the writing of data to disk. If the file is opened SFM_READ -** no action is taken. -*/ - -void sf_write_sync (SNDFILE *sndfile) ; - - - -/* The function sf_wchar_open() is Windows Only! -** Open a file passing in a Windows Unicode filename. Otherwise, this is -** the same as sf_open(). -** -** In order for this to work, you need to do the following: -** -** #include <windows.h> -** #define ENABLE_SNDFILE_WINDOWS_PROTOTYPES 1 -** #including <sndfile.h> -*/ - -#if (defined (ENABLE_SNDFILE_WINDOWS_PROTOTYPES) && ENABLE_SNDFILE_WINDOWS_PROTOTYPES) -SNDFILE* sf_wchar_open (LPCWSTR wpath, int mode, SF_INFO *sfinfo) ; -#endif - - - - -/* Getting and setting of chunks from within a sound file. -** -** These functions allow the getting and setting of chunks within a sound file -** (for those formats which allow it). -** -** These functions fail safely. Specifically, they will not allow you to overwrite -** existing chunks or add extra versions of format specific reserved chunks but -** should allow you to retrieve any and all chunks (may not be implemented for -** all chunks or all file formats). -*/ - -struct SF_CHUNK_INFO -{ char id [64] ; /* The chunk identifier. */ - unsigned id_size ; /* The size of the chunk identifier. */ - unsigned datalen ; /* The size of that data. */ - void *data ; /* Pointer to the data. */ -} ; - -typedef struct SF_CHUNK_INFO SF_CHUNK_INFO ; - -/* Set the specified chunk info (must be done before any audio data is written -** to the file). This will fail for format specific reserved chunks. -** The chunk_info->data pointer must be valid until the file is closed. -** Returns SF_ERR_NO_ERROR on success or non-zero on failure. -*/ -int sf_set_chunk (SNDFILE * sndfile, const SF_CHUNK_INFO * chunk_info) ; - -/* -** An opaque structure to an iterator over the all chunks of a given id -*/ -typedef struct SF_CHUNK_ITERATOR SF_CHUNK_ITERATOR ; - -/* Get an iterator for all chunks matching chunk_info. -** The iterator will point to the first chunk matching chunk_info. -** Chunks are matching, if (chunk_info->id) matches the first -** (chunk_info->id_size) bytes of a chunk found in the SNDFILE* handle. -** If chunk_info is NULL, an iterator to all chunks in the SNDFILE* handle -** is returned. -** The values of chunk_info->datalen and chunk_info->data are ignored. -** If no matching chunks are found in the sndfile, NULL is returned. -** The returned iterator will stay valid until one of the following occurs: -** a) The sndfile is closed. -** b) A new chunk is added using sf_set_chunk(). -** c) Another chunk iterator function is called on the same SNDFILE* handle -** that causes the iterator to be modified. -** The memory for the iterator belongs to the SNDFILE* handle and is freed when -** sf_close() is called. -*/ -SF_CHUNK_ITERATOR * -sf_get_chunk_iterator (SNDFILE * sndfile, const SF_CHUNK_INFO * chunk_info) ; - -/* Iterate through chunks by incrementing the iterator. -** Increments the iterator and returns a handle to the new one. -** After this call, iterator will no longer be valid, and you must use the -** newly returned handle from now on. -** The returned handle can be used to access the next chunk matching -** the criteria as defined in sf_get_chunk_iterator(). -** If iterator points to the last chunk, this will free all resources -** associated with iterator and return NULL. -** The returned iterator will stay valid until sf_get_chunk_iterator_next -** is called again, the sndfile is closed or a new chunk us added. -*/ -SF_CHUNK_ITERATOR * -sf_next_chunk_iterator (SF_CHUNK_ITERATOR * iterator) ; - - -/* Get the size of the specified chunk. -** If the specified chunk exists, the size will be returned in the -** datalen field of the SF_CHUNK_INFO struct. -** Additionally, the id of the chunk will be copied to the id -** field of the SF_CHUNK_INFO struct and it's id_size field will -** be updated accordingly. -** If the chunk doesn't exist chunk_info->datalen will be zero, and the -** id and id_size fields will be undefined. -** The function will return SF_ERR_NO_ERROR on success or non-zero on -** failure. -*/ -int -sf_get_chunk_size (const SF_CHUNK_ITERATOR * it, SF_CHUNK_INFO * chunk_info) ; - -/* Get the specified chunk data. -** If the specified chunk exists, up to chunk_info->datalen bytes of -** the chunk data will be copied into the chunk_info->data buffer -** (allocated by the caller) and the chunk_info->datalen field -** updated to reflect the size of the data. The id and id_size -** field will be updated according to the retrieved chunk -** If the chunk doesn't exist chunk_info->datalen will be zero, and the -** id and id_size fields will be undefined. -** The function will return SF_ERR_NO_ERROR on success or non-zero on -** failure. -*/ -int -sf_get_chunk_data (const SF_CHUNK_ITERATOR * it, SF_CHUNK_INFO * chunk_info) ; - - -#ifdef __cplusplus -} /* extern "C" */ -#endif /* __cplusplus */ - -#endif /* SNDFILE_H */ - |