/* ** Copyright (C) 1999-2011 Erik de Castro Lopo ** ** 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. */ #ifndef SNDFILE_COMMON_H #define SNDFILE_COMMON_H #include "sfconfig.h" #include #include #if HAVE_STDINT_H #include #elif HAVE_INTTYPES_H #include #endif #ifndef SNDFILE_H #include "sndfile.h" #endif #ifdef __cplusplus #error "This code is not designed to be compiled with a C++ compiler." #endif #if (SIZEOF_LONG == 8) # define SF_PLATFORM_S64(x) x##l #elif (SIZEOF_LONG_LONG == 8) # define SF_PLATFORM_S64(x) x##ll #elif COMPILER_IS_GCC # define SF_PLATFORM_S64(x) x##ll #elif OS_IS_WIN32 # define SF_PLATFORM_S64(x) x##I64 #else # error "Don't know how to define a 64 bit integer constant." #endif /* ** Inspiration : http://sourcefrog.net/weblog/software/languages/C/unused.html */ #ifdef UNUSED #elif defined (__GNUC__) # define UNUSED(x) UNUSED_ ## x __attribute__ ((unused)) #elif defined (__LCLINT__) # define UNUSED(x) /*@unused@*/ x #else # define UNUSED(x) x #endif #ifdef __GNUC__ # define WARN_UNUSED __attribute__ ((warn_unused_result)) #else # define WARN_UNUSED #endif #define SF_BUFFER_LEN (8192*2) #define SF_FILENAME_LEN (512) #define SF_SYSERR_LEN (256) #define SF_MAX_STRINGS (32) #define SF_STR_BUFFER_LEN (8192) #define SF_HEADER_LEN (4100 + SF_STR_BUFFER_LEN) #define PSF_SEEK_ERROR ((sf_count_t) -1) #define BITWIDTH2BYTES(x) (((x) + 7) / 8) /* For some reason sizeof returns an unsigned value which causes ** a warning when that value is added or subtracted from a signed ** value. Use SIGNED_SIZEOF instead. */ #define SIGNED_SIZEOF(x) ((int) sizeof (x)) #define ARRAY_LEN(x) ((int) (sizeof (x) / sizeof ((x) [0]))) #define NOT(x) (! (x)) #if (COMPILER_IS_GCC == 1) #define SF_MAX(x,y) ({ \ typeof (x) sf_max_x1 = (x) ; \ typeof (y) sf_max_y1 = (y) ; \ (void) (&sf_max_x1 == &sf_max_y1) ; \ sf_max_x1 > sf_max_y1 ? sf_max_x1 : sf_max_y1 ; }) #define SF_MIN(x,y) ({ \ typeof (x) sf_min_x2 = (x) ; \ typeof (y) sf_min_y2 = (y) ; \ (void) (&sf_min_x2 == &sf_min_y2) ; \ sf_min_x2 < sf_min_y2 ? sf_min_x2 : sf_min_y2 ; }) #else #define SF_MAX(a,b) ((a) > (b) ? (a) : (b)) #define SF_MIN(a,b) ((a) < (b) ? (a) : (b)) #endif #define SF_MAX_CHANNELS 256 /* * Macros for spliting the format file of SF_INFI into contrainer type, ** codec type and endian-ness. */ #define SF_CONTAINER(x) ((x) & SF_FORMAT_TYPEMASK) #define SF_CODEC(x) ((x) & SF_FORMAT_SUBMASK) #define SF_ENDIAN(x) ((x) & SF_FORMAT_ENDMASK) enum { /* PEAK chunk location. */ SF_PEAK_START = 42, SF_PEAK_END = 43, /* PEAK chunk location. */ SF_SCALE_MAX = 52, SF_SCALE_MIN = 53, /* str_flags values. */ SF_STR_ALLOW_START = 0x0100, SF_STR_ALLOW_END = 0x0200, /* Location of strings. */ SF_STR_LOCATE_START = 0x0400, SF_STR_LOCATE_END = 0x0800, SFD_TYPEMASK = 0x0FFFFFFF } ; #define SFM_MASK (SFM_READ | SFM_WRITE | SFM_RDWR) #define SFM_UNMASK (~SFM_MASK) /*--------------------------------------------------------------------------------------- ** Formats that may be supported at some time in the future. ** When support is finalised, these values move to src/sndfile.h. */ enum { /* Work in progress. */ SF_FORMAT_SPEEX = 0x5000000, SF_FORMAT_OGGFLAC = 0x5000001, /* Formats supported read only. */ SF_FORMAT_TXW = 0x4030000, /* Yamaha TX16 sampler file */ SF_FORMAT_DWD = 0x4040000, /* DiamondWare Digirized */ /* Following are detected but not supported. */ SF_FORMAT_REX = 0x40A0000, /* Propellorheads Rex/Rcy */ SF_FORMAT_REX2 = 0x40D0000, /* Propellorheads Rex2 */ SF_FORMAT_KRZ = 0x40E0000, /* Kurzweil sampler file */ SF_FORMAT_WMA = 0x4100000, /* Windows Media Audio. */ SF_FORMAT_SHN = 0x4110000, /* Shorten. */ /* Unsupported encodings. */ SF_FORMAT_SVX_FIB = 0x1020, /* SVX Fibonacci Delta encoding. */ SF_FORMAT_SVX_EXP = 0x1021, /* SVX Exponential Delta encoding. */ SF_FORMAT_PCM_N = 0x1030 } ; /*--------------------------------------------------------------------------------------- ** PEAK_CHUNK - This chunk type is common to both AIFF and WAVE files although their ** endian encodings are different. */ typedef struct { double value ; /* signed value of peak */ sf_count_t position ; /* the sample frame for the peak */ } PEAK_POS ; typedef struct { /* libsndfile internal : write a PEAK chunk at the start or end of the file? */ int peak_loc ; /* WAV/AIFF */ unsigned int version ; /* version of the PEAK chunk */ unsigned int timestamp ; /* secs since 1/1/1970 */ /* CAF */ unsigned int edit_number ; #if HAVE_FLEXIBLE_ARRAY /* the per channel peak info */ PEAK_POS peaks [] ; #else /* ** This is not ISO compliant C. It works on some compilers which ** don't support the ISO standard flexible struct array which is ** used above. If your compiler doesn't like this I suggest you find ** youself a 1999 ISO C standards compilant compiler. GCC-3.X is ** highly recommended. */ PEAK_POS peaks [0] ; #endif } PEAK_INFO ; static inline PEAK_INFO * peak_info_calloc (int channels) { return calloc (1, sizeof (PEAK_INFO) + channels * sizeof (PEAK_POS)) ; } /* peak_info_calloc */ typedef struct { int type ; int flags ; char *str ; } STR_DATA ; static inline size_t make_size_t (int x) { return (size_t) x ; } /* size_t_of_int */ typedef SF_BROADCAST_INFO_VAR (16 * 1024) SF_BROADCAST_INFO_16K ; #if SIZEOF_WCHAR_T == 2 typedef wchar_t sfwchar_t ; #else typedef int16_t sfwchar_t ; #endif /* ** This version of isprint specifically ignores any locale info. Its used for ** determining which characters can be printed in things like hexdumps. */ static inline int psf_isprint (int ch) { return (ch >= ' ' && ch <= '~') ; } /* psf_isprint */ /*======================================================================================= ** SF_PRIVATE stuct - a pointer to this struct is passed back to the caller of the ** sf_open_XXXX functions. The caller however has no knowledge of the struct's ** contents. */ typedef struct { union { char c [SF_FILENAME_LEN] ; sfwchar_t wc [SF_FILENAME_LEN] ; } path ; union { char c [SF_FILENAME_LEN] ; sfwchar_t wc [SF_FILENAME_LEN] ; } dir ; union { char c [SF_FILENAME_LEN / 4] ; sfwchar_t wc [SF_FILENAME_LEN / 4] ; } name ; #if USE_WINDOWS_API /* ** These fields can only be used in src/file_io.c. ** They are basically the same as a windows file HANDLE. */ void *handle, *hsaved ; int use_wchar ; #else /* These fields can only be used in src/file_io.c. */ int filedes, savedes ; #endif int do_not_close_descriptor ; int mode ; /* Open mode : SFM_READ, SFM_WRITE or SFM_RDWR. */ } PSF_FILE ; typedef struct sf_private_tag { /* Canary in a coal mine. */ union { /* Place a double here to encourage double alignment. */ double d [2] ; char c [16] ; } canary ; /* Force the compiler to double align the start of buffer. */ union { double dbuf [SF_BUFFER_LEN / sizeof (double)] ; #if (defined (SIZEOF_INT64_T) && (SIZEOF_INT64_T == 8)) int64_t lbuf [SF_BUFFER_LEN / sizeof (int64_t)] ; #else long lbuf [SF_BUFFER_LEN / sizeof (double)] ; #endif float fbuf [SF_BUFFER_LEN / sizeof (float)] ; int ibuf [SF_BUFFER_LEN / sizeof (int)] ; short sbuf [SF_BUFFER_LEN / sizeof (short)] ; char cbuf [SF_BUFFER_LEN / sizeof (char)] ; signed char scbuf [SF_BUFFER_LEN / sizeof (signed char)] ; unsigned char ucbuf [SF_BUFFER_LEN / sizeof (signed char)] ; } u ; PSF_FILE file, rsrc ; char syserr [SF_SYSERR_LEN] ; /* logbuffer and logindex should only be changed within the logging functions ** of common.c */ char logbuffer [SF_BUFFER_LEN] ; unsigned char header [SF_HEADER_LEN] ; /* Must be unsigned */ int rwf_endian ; /* Header endian-ness flag. */ /* Storage and housekeeping data for adding/reading strings from ** sound files. */ STR_DATA strings [SF_MAX_STRINGS] ; char str_storage [SF_STR_BUFFER_LEN] ; char *str_end ; int str_flags ; /* Guard value. If this changes the buffers above have overflowed. */ int Magick ; unsigned unique_id ; /* Index variables for maintaining logbuffer and header above. */ int logindex ; int headindex, headend ; int has_text ; int error ; int endian ; /* File endianness : SF_ENDIAN_LITTLE or SF_ENDIAN_BIG. */ int data_endswap ; /* Need to endswap data? */ /* ** Maximum float value for calculating the multiplier for ** float/double to short/int conversions. */ int float_int_mult ; float float_max ; int scale_int_float ; /* Vairables for handling pipes. */ int is_pipe ; /* True if file is a pipe. */ sf_count_t pipeoffset ; /* Number of bytes read from a pipe. */ /* True if clipping must be performed on float->int conversions. */ int add_clipping ; SF_INFO sf ; int have_written ; /* Has a single write been done to the file? */ PEAK_INFO *peak_info ; /* Loop Info */ SF_LOOP_INFO *loop_info ; SF_INSTRUMENT *instrument ; /* Broadcast (EBU) Info */ SF_BROADCAST_INFO_16K *broadcast_16k ; /* Channel map data (if present) : an array of ints. */ int *channel_map ; sf_count_t filelength ; /* Overall length of (embedded) file. */ sf_count_t fileoffset ; /* Offset in number of bytes from beginning of file. */ sf_count_t rsrclength ; /* Length of the resource fork (if it exists). */ sf_count_t dataoffset ; /* Offset in number of bytes from beginning of file. */ sf_count_t datalength ; /* Length in bytes of the audio data. */ sf_count_t dataend ; /* Offset to file tailer. */ int blockwidth ; /* Size in bytes of one set of interleaved samples. */ int bytewidth ; /* Size in bytes of one sample (one channel). */ void *dither ; void *interleave ; int last_op ; /* Last operation; either SFM_READ or SFM_WRITE */ sf_count_t read_current ; sf_count_t write_current ; void *container_data ; /* This is a pointer to dynamically allocated file ** container format specific data. */ void *codec_data ; /* This is a pointer to dynamically allocated file ** codec format specific data. */ SF_DITHER_INFO write_dither ; SF_DITHER_INFO read_dither ; int norm_double ; int norm_float ; int auto_header ; int ieee_replace ; /* A set of file specific function pointers */ sf_count_t (*read_short) (struct sf_private_tag*, short *ptr, sf_count_t len) ; sf_count_t (*read_int) (struct sf_private_tag*, int *ptr, sf_count_t len) ; sf_count_t (*read_float) (struct sf_private_tag*, float *ptr, sf_count_t len) ; sf_count_t (*read_double) (struct sf_private_tag*, double *ptr, sf_count_t len) ; sf_count_t (*write_short) (struct sf_private_tag*, const short *ptr, sf_count_t len) ; sf_count_t (*write_int) (struct sf_private_tag*, const int *ptr, sf_count_t len) ; sf_count_t (*write_float) (struct sf_private_tag*, const float *ptr, sf_count_t len) ; sf_count_t (*write_double) (struct sf_private_tag*, const double *ptr, sf_count_t len) ; sf_count_t (*seek) (struct sf_private_tag*, int mode, sf_count_t samples_from_start) ; int (*write_header) (struct sf_private_tag*, int calc_length) ; int (*command) (struct sf_private_tag*, int command, void *data, int datasize) ; /* ** Separate close functions for the codec and the container. ** The codec close function is always called first. */ int (*codec_close) (struct sf_private_tag*) ; int (*container_close) (struct sf_private_tag*) ; char *format_desc ; /* Virtual I/O functions. */ int virtual_io ; SF_VIRTUAL_IO vio ; void *vio_user_data ; } SF_PRIVATE ; enum { SFE_NO_ERROR = SF_ERR_NO_ERROR, SFE_BAD_OPEN_FORMAT = SF_ERR_UNRECOGNISED_FORMAT, SFE_SYSTEM = SF_ERR_SYSTEM, SFE_MALFORMED_FILE = SF_ERR_MALFORMED_FILE, SFE_UNSUPPORTED_ENCODING = SF_ERR_UNSUPPORTED_ENCODING, SFE_ZERO_MAJOR_FORMAT, SFE_ZERO_MINOR_FORMAT, SFE_BAD_FILE, SFE_BAD_FILE_READ, SFE_OPEN_FAILED, SFE_BAD_SNDFILE_PTR, SFE_BAD_SF_INFO_PTR, SFE_BAD_SF_INCOMPLETE, SFE_BAD_FILE_PTR, SFE_BAD_INT_PTR, SFE_BAD_STAT_SIZE, SFE_MALLOC_FAILED, SFE_UNIMPLEMENTED, SFE_BAD_READ_ALIGN, SFE_BAD_WRITE_ALIGN, SFE_UNKNOWN_FORMAT, SFE_NOT_READMODE, SFE_NOT_WRITEMODE, SFE_BAD_MODE_RW, SFE_BAD_SF_INFO, SFE_BAD_OFFSET, SFE_NO_EMBED_SUPPORT, SFE_NO_EMBEDDED_RDWR, SFE_NO_PIPE_WRITE, SFE_INTERNAL, SFE_BAD_COMMAND_PARAM, SFE_BAD_ENDIAN, SFE_CHANNEL_COUNT_ZERO, SFE_CHANNEL_COUNT, SFE_BAD_VIRTUAL_IO, SFE_INTERLEAVE_MODE, SFE_INTERLEAVE_SEEK, SFE_INTERLEAVE_READ, SFE_BAD_SEEK, SFE_NOT_SEEKABLE, SFE_AMBIGUOUS_SEEK, SFE_WRONG_SEEK, SFE_SEEK_FAILED, SFE_BAD_OPEN_MODE, SFE_OPEN_PIPE_RDWR, SFE_RDWR_POSITION, SFE_RDWR_BAD_HEADER, SFE_CMD_HAS_DATA, SFE_BAD_BROADCAST_INFO_SIZE, SFE_BAD_BROADCAST_INFO_TOO_BIG, SFE_STR_NO_SUPPORT, SFE_STR_NOT_WRITE, SFE_STR_MAX_DATA, SFE_STR_MAX_COUNT, SFE_STR_BAD_TYPE, SFE_STR_NO_ADD_END, SFE_STR_BAD_STRING, SFE_STR_WEIRD, SFE_WAV_NO_RIFF, SFE_WAV_NO_WAVE, SFE_WAV_NO_FMT, SFE_WAV_BAD_FMT, SFE_WAV_FMT_SHORT, SFE_WAV_BAD_FACT, SFE_WAV_BAD_PEAK, SFE_WAV_PEAK_B4_FMT, SFE_WAV_BAD_FORMAT, SFE_WAV_BAD_BLOCKALIGN, SFE_WAV_NO_DATA, SFE_WAV_BAD_LIST, SFE_WAV_ADPCM_NOT4BIT, SFE_WAV_ADPCM_CHANNELS, SFE_WAV_GSM610_FORMAT, SFE_WAV_UNKNOWN_CHUNK, SFE_WAV_WVPK_DATA, SFE_AIFF_NO_FORM, SFE_AIFF_AIFF_NO_FORM, SFE_AIFF_COMM_NO_FORM, SFE_AIFF_SSND_NO_COMM, SFE_AIFF_UNKNOWN_CHUNK, SFE_AIFF_COMM_CHUNK_SIZE, SFE_AIFF_BAD_COMM_CHUNK, SFE_AIFF_PEAK_B4_COMM, SFE_AIFF_BAD_PEAK, SFE_AIFF_NO_SSND, SFE_AIFF_NO_DATA, SFE_AIFF_RW_SSND_NOT_LAST, SFE_AU_UNKNOWN_FORMAT, SFE_AU_NO_DOTSND, SFE_AU_EMBED_BAD_LEN, SFE_RAW_READ_BAD_SPEC, SFE_RAW_BAD_BITWIDTH, SFE_RAW_BAD_FORMAT, SFE_PAF_NO_MARKER, SFE_PAF_VERSION, SFE_PAF_UNKNOWN_FORMAT, SFE_PAF_SHORT_HEADER, SFE_PAF_BAD_CHANNELS, SFE_SVX_NO_FORM, SFE_SVX_NO_BODY, SFE_SVX_NO_DATA, SFE_SVX_BAD_COMP, SFE_SVX_BAD_NAME_LENGTH, SFE_NIST_BAD_HEADER, SFE_NIST_CRLF_CONVERISON, SFE_NIST_BAD_ENCODING, SFE_VOC_NO_CREATIVE, SFE_VOC_BAD_FORMAT, SFE_VOC_BAD_VERSION, SFE_VOC_BAD_MARKER, SFE_VOC_BAD_SECTIONS, SFE_VOC_MULTI_SAMPLERATE, SFE_VOC_MULTI_SECTION, SFE_VOC_MULTI_PARAM, SFE_VOC_SECTION_COUNT, SFE_VOC_NO_PIPE, SFE_IRCAM_NO_MARKER, SFE_IRCAM_BAD_CHANNELS, SFE_IRCAM_UNKNOWN_FORMAT, SFE_W64_64_BIT, SFE_W64_NO_RIFF, SFE_W64_NO_WAVE, SFE_W64_NO_DATA, SFE_W64_ADPCM_NOT4BIT, SFE_W64_ADPCM_CHANNELS, SFE_W64_GSM610_FORMAT, SFE_MAT4_BAD_NAME, SFE_MAT4_NO_SAMPLERATE, SFE_MAT5_BAD_ENDIAN, SFE_MAT5_NO_BLOCK, SFE_MAT5_SAMPLE_RATE, SFE_PVF_NO_PVF1, SFE_PVF_BAD_HEADER, SFE_PVF_BAD_BITWIDTH, SFE_DWVW_BAD_BITWIDTH, SFE_G72X_NOT_MONO, SFE_XI_BAD_HEADER, SFE_XI_EXCESS_SAMPLES, SFE_XI_NO_PIPE, SFE_HTK_NO_PIPE, SFE_SDS_NOT_SDS, SFE_SDS_BAD_BIT_WIDTH, SFE_SD2_FD_DISALLOWED, SFE_SD2_BAD_DATA_OFFSET, SFE_SD2_BAD_MAP_OFFSET, SFE_SD2_BAD_DATA_LENGTH, SFE_SD2_BAD_MAP_LENGTH, SFE_SD2_BAD_RSRC, SFE_SD2_BAD_SAMPLE_SIZE, SFE_FLAC_BAD_HEADER, SFE_FLAC_NEW_DECODER, SFE_FLAC_INIT_DECODER, SFE_FLAC_LOST_SYNC, SFE_FLAC_BAD_SAMPLE_RATE, SFE_FLAC_UNKOWN_ERROR, SFE_WVE_NOT_WVE, SFE_WVE_NO_PIPE, SFE_VORBIS_ENCODER_BUG, SFE_RF64_NOT_RF64, SFE_MAX_ERROR /* This must be last in list. */ } ; int subformat_to_bytewidth (int format) ; int s_bitwidth_to_subformat (int bits) ; int u_bitwidth_to_subformat (int bits) ; /* Functions for reading and writing floats and doubles on processors ** with non-IEEE floats/doubles. */ float float32_be_read (unsigned char *cptr) ; float float32_le_read (unsigned char *cptr) ; void float32_be_write (float in, unsigned char *out) ; void float32_le_write (float in, unsigned char *out) ; double double64_be_read (unsigned char *cptr) ; double double64_le_read (unsigned char *cptr) ; void double64_be_write (double in, unsigned char *out) ; void double64_le_write (double in, unsigned char *out) ; /* Functions for writing to the internal logging buffer. */ void psf_log_printf (SF_PRIVATE *psf, const char *format, ...) ; void psf_log_SF_INFO (SF_PRIVATE *psf) ; int32_t psf_rand_int32 (void) ; void append_snprintf (char * dest, size_t maxlen, const char * fmt, ...) ; void psf_strlcpy_crlf (char *dest, const char *src, size_t destmax, size_t srcmax) ; /* Functions used when writing file headers. */ int psf_binheader_writef (SF_PRIVATE *psf, const char *format, ...) ; void psf_asciiheader_printf (SF_PRIVATE *psf, const char *format, ...) ; /* Functions used when reading file headers. */ int psf_binheader_readf (SF_PRIVATE *psf, char const *format, ...) ; /* Functions used in the write function for updating the peak chunk. */ void peak_update_short (SF_PRIVATE *psf, short *ptr, size_t items) ; void peak_update_int (SF_PRIVATE *psf, int *ptr, size_t items) ; void peak_update_double (SF_PRIVATE *psf, double *ptr, size_t items) ; /* Functions defined in command.c. */ int psf_get_format_simple_count (void) ; int psf_get_format_simple (SF_FORMAT_INFO *data) ; int psf_get_format_info (SF_FORMAT_INFO *data) ; int psf_get_format_major_count (void) ; int psf_get_format_major (SF_FORMAT_INFO *data) ; int psf_get_format_subtype_count (void) ; int psf_get_format_subtype (SF_FORMAT_INFO *data) ; void psf_generate_format_desc (SF_PRIVATE *psf) ; double psf_calc_signal_max (SF_PRIVATE *psf, int normalize) ; int psf_calc_max_all_channels (SF_PRIVATE *psf, double *peaks, int normalize) ; int psf_get_signal_max (SF_PRIVATE *psf, double *peak) ; int psf_get_max_all_channels (SF_PRIVATE *psf, double *peaks) ; /* Functions in strings.c. */ const char* psf_get_string (SF_PRIVATE *psf, int str_type) ; int psf_set_string (SF_PRIVATE *psf, int str_type, const char *str) ; int psf_store_string (SF_PRIVATE *psf, int str_type, const char *str) ; int psf_location_string_count (const SF_PRIVATE * psf, int location) ; /* Default seek function. Use for PCM and float encoded data. */ sf_count_t psf_default_seek (SF_PRIVATE *psf, int mode, sf_count_t samples_from_start) ; int macos_guess_file_type (SF_PRIVATE *psf, const char *filename) ; /*------------------------------------------------------------------------------------ ** File I/O functions which will allow access to large files (> 2 Gig) on ** some 32 bit OSes. Implementation in file_io.c. */ int psf_fopen (SF_PRIVATE *psf) ; int psf_set_stdio (SF_PRIVATE *psf) ; int psf_file_valid (SF_PRIVATE *psf) ; void psf_set_file (SF_PRIVATE *psf, int fd) ; void psf_init_files (SF_PRIVATE *psf) ; void psf_use_rsrc (SF_PRIVATE *psf, int on_off) ; SNDFILE * psf_open_file (SF_PRIVATE *psf, SF_INFO *sfinfo) ; sf_count_t psf_fseek (SF_PRIVATE *psf, sf_count_t offset, int whence) ; sf_count_t psf_fread (void *ptr, sf_count_t bytes, sf_count_t count, SF_PRIVATE *psf) ; sf_count_t psf_fwrite (const void *ptr, sf_count_t bytes, sf_count_t count, SF_PRIVATE *psf) ; sf_count_t psf_fgets (char *buffer, sf_count_t bufsize, SF_PRIVATE *psf) ; sf_count_t psf_ftell (SF_PRIVATE *psf) ; sf_count_t psf_get_filelen (SF_PRIVATE *psf) ; void psf_fsync (SF_PRIVATE *psf) ; int psf_is_pipe (SF_PRIVATE *psf) ; int psf_ftruncate (SF_PRIVATE *psf, sf_count_t len) ; int psf_fclose (SF_PRIVATE *psf) ; /* Open and close the resource fork of a file. */ int psf_open_rsrc (SF_PRIVATE *psf) ; int psf_close_rsrc (SF_PRIVATE *psf) ; /* void psf_fclearerr (SF_PRIVATE *psf) ; int psf_ferror (SF_PRIVATE *psf) ; */ /*------------------------------------------------------------------------------------ ** Functions for reading and writing different file formats. */ int aiff_open (SF_PRIVATE *psf) ; int au_open (SF_PRIVATE *psf) ; int avr_open (SF_PRIVATE *psf) ; int htk_open (SF_PRIVATE *psf) ; int ircam_open (SF_PRIVATE *psf) ; int mat4_open (SF_PRIVATE *psf) ; int mat5_open (SF_PRIVATE *psf) ; int nist_open (SF_PRIVATE *psf) ; int paf_open (SF_PRIVATE *psf) ; int pvf_open (SF_PRIVATE *psf) ; int raw_open (SF_PRIVATE *psf) ; int sd2_open (SF_PRIVATE *psf) ; int sds_open (SF_PRIVATE *psf) ; int svx_open (SF_PRIVATE *psf) ; int voc_open (SF_PRIVATE *psf) ; int w64_open (SF_PRIVATE *psf) ; int wav_open (SF_PRIVATE *psf) ; int xi_open (SF_PRIVATE *psf) ; int flac_open (SF_PRIVATE *psf) ; int caf_open (SF_PRIVATE *psf) ; int mpc2k_open (SF_PRIVATE *psf) ; int rf64_open (SF_PRIVATE *psf) ; /* In progress. Do not currently work. */ int ogg_vorbis_open (SF_PRIVATE *psf) ; int ogg_speex_open (SF_PRIVATE *psf) ; int ogg_pcm_open (SF_PRIVATE *psf) ; int mpeg_open (SF_PRIVATE *psf) ; int ogg_open (SF_PRIVATE *psf) ; int rx2_open (SF_PRIVATE *psf) ; int txw_open (SF_PRIVATE *psf) ; int wve_open (SF_PRIVATE *psf) ; int dwd_open (SF_PRIVATE *psf) ; int macbinary3_open (SF_PRIVATE *psf) ; /*------------------------------------------------------------------------------------ ** Init functions for a number of common data encodings. */ int pcm_init (SF_PRIVATE *psf) ; int ulaw_init (SF_PRIVATE *psf) ; int alaw_init (SF_PRIVATE *psf) ; int float32_init (SF_PRIVATE *psf) ; int double64_init (SF_PRIVATE *psf) ; int dwvw_init (SF_PRIVATE *psf, int bitwidth) ; int gsm610_init (SF_PRIVATE *psf) ; int vox_adpcm_init (SF_PRIVATE *psf) ; int flac_init (SF_PRIVATE *psf) ; int g72x_init (SF_PRIVATE * psf) ; int dither_init (SF_PRIVATE *psf, int mode) ; int wav_w64_ima_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) ; int wav_w64_msadpcm_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) ; int aiff_ima_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) ; int interleave_init (SF_PRIVATE *psf) ; /*------------------------------------------------------------------------------------ ** Chunk logging functions. */ typedef struct { struct { int chunk ; sf_count_t offset ; sf_count_t len ; } l [100] ; int count ; } PRIV_CHUNK4 ; void pchk4_store (PRIV_CHUNK4 * pchk, int marker, sf_count_t offset, sf_count_t len) ; int pchk4_find (PRIV_CHUNK4 * pchk, int marker) ; /*------------------------------------------------------------------------------------ ** Functions that work like OpenBSD's strlcpy/strlcat to replace strncpy/strncat. ** ** See : http://www.gratisoft.us/todd/papers/strlcpy.html ** ** These functions are available on *BSD, but are not avaialble everywhere so we ** implement them here. ** ** The argument order has been changed to that of strncpy/strncat to cause ** compiler errors if code is carelessly converted from one to the other. */ static inline void psf_strlcat (char *dest, size_t n, const char *src) { strncat (dest, src, n - strlen (dest) - 1) ; dest [n - 1] = 0 ; } /* psf_strlcat */ static inline void psf_strlcpy (char *dest, size_t n, const char *src) { strncpy (dest, src, n - 1) ; dest [n - 1] = 0 ; } /* psf_strlcpy */ /*------------------------------------------------------------------------------------ ** Other helper functions. */ void *psf_memset (void *s, int c, sf_count_t n) ; SF_INSTRUMENT * psf_instrument_alloc (void) ; void psf_sanitize_string (char * cptr, int len) ; /* Generate the current date as a string. */ void psf_get_date_str (char *str, int maxlen) ; SF_BROADCAST_INFO_16K * broadcast_var_alloc (void) ; int broadcast_var_set (SF_PRIVATE *psf, const SF_BROADCAST_INFO * data, size_t datasize) ; int broadcast_var_get (SF_PRIVATE *psf, SF_BROADCAST_INFO * data, size_t datasize) ; typedef struct { int channels ; int endianness ; } AUDIO_DETECT ; int audio_detect (SF_PRIVATE * psf, AUDIO_DETECT *ad, const unsigned char * data, int datalen) ; int id3_skip (SF_PRIVATE * psf) ; /*------------------------------------------------------------------------------------ ** Helper/debug functions. */ void psf_hexdump (const void *ptr, int len) ; const char * str_of_major_format (int format) ; const char * str_of_minor_format (int format) ; const char * str_of_open_mode (int mode) ; const char * str_of_endianness (int end) ; /*------------------------------------------------------------------------------------ ** Extra commands for sf_command(). Not for public use yet. */ enum { SFC_TEST_AIFF_ADD_INST_CHUNK = 0x2000, SFC_TEST_WAV_ADD_INFO_CHUNK = 0x2010 } ; /* ** Maybe, one day, make these functions or something like them, public. ** ** Buffer to buffer dithering. Pointer in and out are allowed to point ** to the same buffer for in-place dithering. */ #if 0 int sf_dither_short (const SF_DITHER_INFO *dither, const short *in, short *out, int count) ; int sf_dither_int (const SF_DITHER_INFO *dither, const int *in, int *out, int count) ; int sf_dither_float (const SF_DITHER_INFO *dither, const float *in, float *out, int count) ; int sf_dither_double (const SF_DITHER_INFO *dither, const double *in, double *out, int count) ; #endif #endif /* SNDFILE_COMMON_H */