ref: 7af9c20656f528fe2329d91197d4f83094d7715a
dir: /common/libsndfile/src/sndfile.c/
/*
** Copyright (C) 1999-2002 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.
*/
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
/* EMX / gcc compiler for OS/2. */
#ifdef __EMX__
#include <sys/types.h>
#endif
/* For the Metrowerks CodeWarrior Pro Compiler (mainly MacOS) */
#if (defined (__MWERKS__))
#include <stat.h>
#else
#include <sys/stat.h>
#endif
#include "sndfile.h"
#include "config.h"
#include "sfendian.h"
#include "common.h"
#define SNDFILE_MAGICK 0x1234C0DE
typedef struct
{ int error ;
char *str ;
} ErrorStruct ;
static
ErrorStruct SndfileErrors [] =
{
{ SFE_NO_ERROR , "No Error." },
{ SFE_BAD_FILE , "File does not exist or is not a regular file (possibly a pipe?)." },
{ SFE_BAD_FILE_READ , "File exists but no data could be read." },
{ SFE_OPEN_FAILED , "Could not open file." },
{ SFE_BAD_OPEN_FORMAT , "Bad format specified for file open." },
{ SFE_BAD_SNDFILE_PTR , "Not a valid SNDFILE* pointer." },
{ SFE_BAD_SF_INFO_PTR , "NULL SF_INFO pointer passed to libsndfile." },
{ SFE_BAD_SF_INCOMPLETE , "SF_PRIVATE struct incomplete and end of header parsing." },
{ SFE_BAD_FILE_PTR , "Bad FILE pointer." },
{ SFE_BAD_INT_PTR , "Internal error, Bad pointer." },
{ SFE_MALLOC_FAILED , "Internal malloc () failed." },
{ SFE_UNIMPLEMENTED , "File contains data in an unimplemented format." },
{ SFE_BAD_READ_ALIGN , "Attempt to read a non-integer number of channels." },
{ SFE_BAD_WRITE_ALIGN , "Attempt to write a non-integer number of channels." },
{ SFE_UNKNOWN_FORMAT , "File contains data in an unknown format." },
{ SFE_NOT_READMODE , "Read attempted on file currently open for write." },
{ SFE_NOT_WRITEMODE , "Write attempted on file currently open for read." },
{ SFE_BAD_MODE_RW , "This file format does not support read/write mode." },
{ SFE_BAD_SF_INFO , "Internal error : SF_INFO struct incomplete." },
{ SFE_SHORT_READ , "Short read error." },
{ SFE_SHORT_WRITE , "Short write error." },
{ SFE_INTERNAL , "Unspecified internal error." },
{ SFE_LOG_OVERRUN , "Log buffer has overrun. File probably broken." },
{ SFE_BAD_CONTROL_CMD , "Bad command passed to function sf_command()." },
{ SFE_BAD_ENDIAN , "Bad endian-ness. Try default endian-ness" },
{ SFE_CHANNEL_COUNT , "Too many channels specified." },
{ SFE_BAD_SEEK , "Internal psf_fseek() failed." },
{ SFE_NOT_SEEKABLE , "Seek attempted on unseekable file type." },
{ SFE_AMBIGUOUS_SEEK , "Error: combination of file open mode and seek command is ambiguous." },
{ SFE_WRONG_SEEK , "Error: invalid seek parameters." },
{ SFE_SEEK_FAILED , "Error: parameters OK, but psf_seek() failed." },
{ SFE_BAD_OPEN_MODE , "Error: bad mode parameter for file open." },
{ SFE_OPEN_PIPE_RDWR , "Error: attempt toopen a pipe in read/write mode." },
{ SFE_RDWR_POSITION , "Error on RDWR position (cryptic)." },
{ SFE_WAV_NO_RIFF , "Error in WAV file. No 'RIFF' chunk marker." },
{ SFE_WAV_NO_WAVE , "Error in WAV file. No 'WAVE' chunk marker." },
{ SFE_WAV_NO_FMT , "Error in WAV file. No 'fmt ' chunk marker." },
{ SFE_WAV_FMT_SHORT , "Error in WAV file. Short 'fmt ' chunk." },
{ SFE_WAV_FMT_TOO_BIG , "Error in WAV file. 'fmt ' chunk too large." },
{ SFE_WAV_BAD_FACT , "Error in WAV file. 'fact' chunk out of place." },
{ SFE_WAV_BAD_PEAK , "Error in WAV file. Bad 'PEAK' chunk." },
{ SFE_WAV_PEAK_B4_FMT , "Error in WAV file. 'PEAK' chunk found before 'fmt ' chunk." },
{ SFE_WAV_BAD_FORMAT , "Error in WAV file. Errors in 'fmt ' chunk." },
{ SFE_WAV_BAD_BLOCKALIGN , "Error in WAV file. Block alignment in 'fmt ' chunk is incorrect." },
{ SFE_WAV_NO_DATA , "Error in WAV file. No 'data' chunk marker." },
{ SFE_WAV_UNKNOWN_CHUNK , "Error in WAV file. File contains an unknown chunk marker." },
{ SFE_WAV_ADPCM_NOT4BIT , "Error in ADPCM WAV file. Invalid bit width." },
{ SFE_WAV_ADPCM_CHANNELS , "Error in ADPCM WAV file. Invalid number of channels." },
{ SFE_WAV_GSM610_FORMAT , "Error in GSM610 WAV file. Invalid format chunk." },
{ SFE_AIFF_NO_FORM , "Error in AIFF file, bad 'FORM' marker." },
{ SFE_AIFF_AIFF_NO_FORM , "Error in AIFF file, 'AIFF' marker without 'FORM'." },
{ SFE_AIFF_COMM_NO_FORM , "Error in AIFF file, 'COMM' marker without 'FORM'." },
{ SFE_AIFF_SSND_NO_COMM , "Error in AIFF file, 'SSND' marker without 'COMM'." },
{ SFE_AIFF_UNKNOWN_CHUNK , "Error in AIFF file, unknown chunk." },
{ SFE_AIFF_COMM_CHUNK_SIZE, "Error in AIFF file, bad 'COMM' chunk size." },
{ SFE_AIFF_BAD_COMM_CHUNK , "Error in AIFF file, bad 'COMM' chunk." },
{ SFE_AIFF_PEAK_B4_COMM , "Error in AIFF file. 'PEAK' chunk found before 'COMM' chunk." },
{ SFE_AIFF_BAD_PEAK , "Error in AIFF file. Bad 'PEAK' chunk." },
{ SFE_AIFF_NO_SSND , "Error in AIFF file, bad 'SSND' chunk." },
{ SFE_AIFF_NO_DATA , "Error in AIFF file, no sound data." },
{ SFE_AU_UNKNOWN_FORMAT , "Error in AU file, unknown format." },
{ SFE_AU_NO_DOTSND , "Error in AU file, missing '.snd' or 'dns.' marker." },
{ SFE_RAW_READ_BAD_SPEC , "Error while opening RAW file for read. Must specify format and channels.\n"
"Possibly trying to open unsupported format."
},
{ SFE_RAW_BAD_BITWIDTH , "Error. RAW file bitwidth must be a multiple of 8." },
{ SFE_PAF_NO_MARKER , "Error in PAF file, no marker." },
{ SFE_PAF_VERSION , "Error in PAF file, bad version." },
{ SFE_PAF_UNKNOWN_FORMAT , "Error in PAF file, unknown format." },
{ SFE_PAF_SHORT_HEADER , "Error in PAF file. File shorter than minimal header." },
{ SFE_SVX_NO_FORM , "Error in 8SVX / 16SV file, no 'FORM' marker." },
{ SFE_SVX_NO_BODY , "Error in 8SVX / 16SV file, no 'BODY' marker." },
{ SFE_SVX_NO_DATA , "Error in 8SVX / 16SV file, no sound data." },
{ SFE_SVX_BAD_COMP , "Error in 8SVX / 16SV file, unsupported compression format." },
{ SFE_NIST_BAD_HEADER , "Error in NIST file, bad header." },
{ SFE_NIST_BAD_ENCODING , "Error in NIST file, unsupported compression format." },
{ SFE_SMTD_NO_SEKD , "Error in Samplitude file, no 'SEKD' marker." },
{ SFE_SMTD_NO_SAMR , "Error in Samplitude file, no 'SAMR' marker." },
{ SFE_VOC_NO_CREATIVE , "Error in VOC file, no 'Creative Voice File' marker." },
{ SFE_VOC_BAD_FORMAT , "Error in VOC file, bad format." },
{ SFE_VOC_BAD_VERSION , "Error in VOC file, bad version number." },
{ SFE_VOC_BAD_MARKER , "Error in VOC file, bad marker in file." },
{ SFE_VOC_BAD_SECTIONS , "Error in VOC file, incompatible VOC sections." },
{ SFE_VOC_MULTI_SAMPLERATE, "Error in VOC file, more than one sample rate defined." },
{ SFE_VOC_MULTI_SECTION , "Unimplemented VOC file feature, file contains multiple sound sections." },
{ SFE_VOC_MULTI_PARAM , "Error in VOC file, file contains multiple bit or channel widths." },
{ SFE_VOC_SECTION_COUNT , "Error in VOC file, too many sections." },
{ SFE_IRCAM_NO_MARKER , "Error in IRCAM file, bad IRCAM marker." },
{ SFE_IRCAM_BAD_CHANNELS , "Error in IRCAM file, bad channel count." },
{ SFE_IRCAM_UNKNOWN_FORMAT, "Error in IRCAM file, unknow encoding format." },
{ SFE_W64_64_BIT , "Error in W64 file, file contains 64 bit offset." },
{ SFE_W64_NO_RIFF , "Error in W64 file. No 'riff' chunk marker." },
{ SFE_W64_NO_WAVE , "Error in W64 file. No 'wave' chunk marker." },
{ SFE_W64_NO_FMT , "Error in W64 file. No 'fmt ' chunk marker." },
{ SFE_W64_NO_DATA , "Error in W64 file. No 'data' chunk marker." },
{ SFE_W64_FMT_SHORT , "Error in W64 file. Short 'fmt ' chunk." },
{ SFE_W64_FMT_TOO_BIG , "Error in W64 file. 'fmt ' chunk too large." },
{ SFE_W64_ADPCM_NOT4BIT , "Error in ADPCM W64 file. Invalid bit width." },
{ SFE_W64_ADPCM_CHANNELS , "Error in ADPCM W64 file. Invalid number of channels." },
{ SFE_W64_GSM610_FORMAT , "Error in GSM610 W64 file. Invalid format chunk." },
{ SFE_DWVW_BAD_BITWIDTH , "Error : Bad bit width for DWVW encoding. Must be 12, 16 or 24." },
{ SFE_MAX_ERROR , "Maximum error number." }
} ;
/*------------------------------------------------------------------------------
*/
static int does_extension_match (const char *ext, const char *test) ;
static int is_au_snd_file (const char *filename) ;
static int guess_file_type (SF_PRIVATE *psf, const char *filename) ;
static int validate_sfinfo (SF_INFO *sfinfo) ;
static int validate_psf (SF_PRIVATE *psf) ;
static void save_header_info (SF_PRIVATE *psf) ;
static void copy_filename (SF_PRIVATE *psf, const char *path) ;
/*-static int hash_command (const char *cmd) ;-*/
/*------------------------------------------------------------------------------
** Private (static) variables.
*/
static int sf_errno = 0 ;
static char sf_logbuffer [SF_BUFFER_LEN] = { 0 } ;
/*------------------------------------------------------------------------------
*/
#define VALIDATE_SNDFILE_AND_ASSIGN_PSF(a,b) \
{ if (! (a)) \
return SFE_BAD_SNDFILE_PTR ; \
(b) = (SF_PRIVATE*) (a) ; \
if (((b)->filedes) < 0) \
return SFE_BAD_FILE_PTR ; \
if ((b)->Magick != SNDFILE_MAGICK) \
return SFE_BAD_SNDFILE_PTR ; \
(b)->error = 0 ; \
}
/*------------------------------------------------------------------------------
** Public functions.
*/
SNDFILE*
sf_open (const char *path, int mode, SF_INFO *sfinfo)
{ SF_PRIVATE *psf ;
int error ;
if (mode != SFM_READ && mode != SFM_WRITE && mode != SFM_RDWR)
{ sf_errno = SFE_BAD_OPEN_MODE ;
return NULL ;
} ;
if (! path)
{ sf_errno = SFE_BAD_FILE ;
return NULL ;
} ;
if (! sfinfo)
{ sf_errno = SFE_BAD_SF_INFO_PTR ;
return NULL ;
} ;
sf_errno = error = 0 ;
sf_logbuffer [0] = 0 ;
if (! (psf = malloc (sizeof (SF_PRIVATE))))
{ sf_errno = SFE_MALLOC_FAILED ;
return NULL ;
} ;
memset (psf, 0, sizeof (SF_PRIVATE)) ;
psf_log_printf (psf, "File : %s\n", path) ;
copy_filename (psf, path) ;
psf->Magick = SNDFILE_MAGICK ;
psf->norm_float = SF_TRUE ;
psf->norm_double = SF_TRUE ;
psf->mode = mode ;
psf->filelength = -1 ;
psf->filedes = -1 ;
psf->dataoffset = -1 ;
psf->datalength = -1 ;
psf->read_current = -1 ;
psf->write_current = -1 ;
psf->new_seek = psf_default_seek ;
psf->sf.format = sfinfo->format ;
if (strcmp (path, "-") == 0)
{ /* File is a either stdin or stdout. */
psf->sf.seekable = SF_FALSE ;
switch (mode)
{ case SFM_RDWR :
error = SFE_OPEN_PIPE_RDWR ;
break ;
case SFM_READ :
psf->filedes = 0 ;
break ;
case SFM_WRITE :
psf->filedes = 1 ;
break ;
default :
error = SFE_BAD_OPEN_MODE ;
break ;
} ;
psf->filelength = SF_MAX_COUNT ;
}
else if ((psf->filedes = psf_open (path, mode)) < 0)
error = SFE_OPEN_FAILED ;
if (error)
{ if (psf->filedes >= 0)
psf_fclose (psf->filedes) ;
sf_close (psf) ;
sf_errno = error ;
return NULL ;
} ;
/* File is open, so get the length. */
psf->filelength = psf_get_filelen (psf->filedes) ;
memcpy (&(psf->sf), sfinfo, sizeof (SF_INFO)) ;
psf->sf.seekable = SF_TRUE ;
psf->sf.sections = 1 ;
if (mode == SFM_WRITE || (mode == SFM_RDWR && psf->filelength == 0))
{ /* If the file is being opened for write or RDWR and the file is currently
** empty, then the SF_INFO struct must contain valid data.
*/
if (! sf_format_check (sfinfo))
error = SFE_BAD_OPEN_FORMAT ;
}
else if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_RAW)
{ /* If type RAW has not been specified then need to figure out file type. */
psf->sf.format = guess_file_type (psf, psf->filename) ;
} ;
if (error)
{ if (psf->filedes >= 0)
psf_fclose (psf->filedes) ;
sf_close (psf) ;
sf_errno = error ;
return NULL ;
} ;
/* Set bytewidth if known. */
switch (sfinfo->format & SF_FORMAT_SUBMASK)
{ case SF_FORMAT_PCM_S8 :
case SF_FORMAT_PCM_U8 :
case SF_FORMAT_ULAW :
case SF_FORMAT_ALAW :
psf->bytewidth = 1 ;
break ;
case SF_FORMAT_PCM_16 :
psf->bytewidth = 2 ;
break ;
case SF_FORMAT_PCM_24 :
psf->bytewidth = 3 ;
break ;
case SF_FORMAT_PCM_32 :
case SF_FORMAT_FLOAT :
psf->bytewidth = 4 ;
break ;
case SF_FORMAT_DOUBLE :
psf->bytewidth = 8 ;
break ;
} ;
/* Call the initialisation function for the relevant file type. */
switch (psf->sf.format & SF_FORMAT_TYPEMASK)
{ case SF_FORMAT_WAV :
error = wav_open (psf) ;
break ;
case SF_FORMAT_AIFF :
error = aiff_open (psf) ;
break ;
case SF_FORMAT_AU :
error = au_open (psf) ;
break ;
case SF_FORMAT_AU | SF_FORMAT_ULAW :
error = au_nh_open (psf) ;
break ;
case SF_FORMAT_RAW :
error = raw_open (psf) ;
break ;
case SF_FORMAT_PAF :
error = paf_open (psf) ;
break ;
case SF_FORMAT_SVX :
error = svx_open (psf) ;
break ;
case SF_FORMAT_NIST :
error = nist_open (psf) ;
break ;
case SF_FORMAT_SMPLTD :
error = smpltd_open (psf) ;
break ;
case SF_FORMAT_IRCAM :
error = ircam_open (psf) ;
break ;
case SF_FORMAT_VOC :
error = voc_open (psf) ;
break ;
case SF_FORMAT_W64 :
error = w64_open (psf) ;
break ;
case SF_FORMAT_SD2 :
error = sd2_open (psf) ;
break ;
case SF_FORMAT_REX2 :
error = rx2_open (psf) ;
break ;
case SF_FORMAT_TXW :
error = txw_open (psf) ;
break ;
default :
error = SFE_UNKNOWN_FORMAT ;
} ;
if (error)
{ sf_errno = error ;
save_header_info (psf) ;
sf_close (psf) ;
return NULL ;
} ;
if (! validate_sfinfo (&(psf->sf)))
{
#ifndef REMOVE_ME
printf ("validate_sfinfo\n") ;
puts (psf->logbuffer) ;
#endif
psf_log_SF_INFO (psf) ;
save_header_info (psf) ;
sf_errno = SFE_BAD_SF_INFO ;
sf_close (psf) ;
return NULL ;
} ;
if (! validate_psf (psf))
{
#ifndef REMOVE_ME
printf ("validate_psf\n") ;
puts (psf->logbuffer) ;
#endif
save_header_info (psf) ;
sf_errno = SFE_INTERNAL ;
sf_close (psf) ;
return NULL ;
} ;
psf->read_current = 0 ;
psf->write_current= (psf->mode == SFM_RDWR) ? psf->sf.samples : 0 ;
memcpy (sfinfo, &(psf->sf), sizeof (SF_INFO)) ;
return (SNDFILE*) psf ;
} /* sf_open */
/*------------------------------------------------------------------------------
*/
int
sf_error (SNDFILE *sndfile)
{ SF_PRIVATE *psf ;
if (! sndfile)
{ if (sf_error)
return 1 ;
return 0 ;
} ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->error)
return 1 ;
return 0 ;
} /* sf_error */
/*------------------------------------------------------------------------------
*/
int
sf_perror (SNDFILE *sndfile)
{ SF_PRIVATE *psf ;
int k, errnum ;
if (! sndfile)
{ errnum = sf_errno ;
}
else
{ VALIDATE_SNDFILE_AND_ASSIGN_PSF(sndfile,psf) ;
errnum = psf->error ;
} ;
errnum = abs (errnum) ;
errnum = (errnum >= SFE_MAX_ERROR || errnum < 0) ? 0 : errnum ;
for (k = 0 ; SndfileErrors[k].str ; k++)
if (errnum == SndfileErrors[k].error)
{ fprintf (stderr, "%s\n", SndfileErrors[k].str) ;
return SFE_NO_ERROR ;
} ;
fprintf (stderr, "No error string for error number %d.\n", errnum) ;
return SFE_NO_ERROR ;
} /* sf_perror */
/*------------------------------------------------------------------------------
*/
int
sf_error_str (SNDFILE *sndfile, char *str, size_t maxlen)
{ SF_PRIVATE *psf ;
int errnum, k ;
if (! sndfile)
{ errnum = sf_errno ;
}
else
{ VALIDATE_SNDFILE_AND_ASSIGN_PSF(sndfile,psf) ;
errnum = psf->error ;
} ;
errnum = abs (errnum) ;
errnum = (errnum >= SFE_MAX_ERROR || errnum < 0) ? 0 : errnum ;
for (k = 0 ; SndfileErrors[k].str ; k++)
if (errnum == SndfileErrors[k].error)
{ if (str)
{ strncpy (str, SndfileErrors [errnum].str, maxlen) ;
str [maxlen-1] = 0 ;
} ;
return SFE_NO_ERROR ;
} ;
if (str)
{ strncpy (str, "No error defined for this error number. This is a bug in libsndfile.", maxlen) ;
str [maxlen-1] = 0 ;
} ;
return SFE_NO_ERROR ;
} /* sf_error_str */
/*------------------------------------------------------------------------------
*/
int
sf_error_number (int errnum, char *str, size_t maxlen)
{ int k ;
errnum = abs (errnum) ;
errnum = (errnum >= SFE_MAX_ERROR || errnum < 0) ? 0 : errnum ;
for (k = 0 ; SndfileErrors[k].str ; k++)
if (errnum == SndfileErrors[k].error)
{ strncpy (str, SndfileErrors [errnum].str, maxlen) ;
str [maxlen-1] = 0 ;
return SFE_NO_ERROR ;
} ;
strncpy (str, "No error defined for this error number. This is a bug in libsndfile.", maxlen) ;
str [maxlen-1] = 0 ;
return SFE_NO_ERROR ;
} /* sf_error_number */
/*------------------------------------------------------------------------------
*/
int
sf_format_check (const SF_INFO *info)
{ int subformat, endian ;
subformat = info->format & SF_FORMAT_SUBMASK ;
endian = info->format & SF_FORMAT_SUBMASK ;
/* This is the place where each file format can check if the suppiled
** SF_INFO struct is valid.
** Return 0 on failure, 1 ons success.
*/
if (info->channels < 1 || info->channels > 256)
return 0 ;
switch (info->format & SF_FORMAT_TYPEMASK)
{ case SF_FORMAT_WAV :
/* WAV is strictly little endian. */
if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
return 0 ;
if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16)
return 1 ;
if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
return 1 ;
if ((subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) && info->channels <= 2)
return 1 ;
if (subformat == SF_FORMAT_GSM610 && info->channels == 1)
return 1 ;
if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
return 1 ;
if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
return 1 ;
break ;
case SF_FORMAT_AIFF :
/* AIFF does allow both endian-nesses for PCM data.*/
if (subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
return 1 ;
/* Other encodings. Check for endian-ness. */
if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU)
return 0 ;
if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_S8)
return 1 ;
if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
return 1 ;
if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
return 1 ;
if ((subformat == SF_FORMAT_DWVW_12 || subformat == SF_FORMAT_DWVW_16 ||
subformat == SF_FORMAT_DWVW_24) && info-> channels == 1)
return 1 ;
break ;
case SF_FORMAT_AU :
if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
return 1 ;
if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
return 1 ;
if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
return 1 ;
if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
return 1 ;
if (subformat == SF_FORMAT_G721_32 && info->channels == 1)
return 1 ;
if (subformat == SF_FORMAT_G723_24 && info->channels == 1)
return 1 ;
break ;
case SF_FORMAT_RAW :
if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
return 1 ;
if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
return 1 ;
if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
return 1 ;
if (subformat == SF_FORMAT_ALAW || subformat == SF_FORMAT_ULAW)
return 1 ;
if ((subformat == SF_FORMAT_DWVW_12 || subformat == SF_FORMAT_DWVW_16 ||
subformat == SF_FORMAT_DWVW_24) && info-> channels == 1)
return 1 ;
if (subformat == SF_FORMAT_GSM610 && info->channels == 1)
return 1 ;
break ;
case SF_FORMAT_PAF :
if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
return 1 ;
if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
return 1 ;
break ;
case SF_FORMAT_SVX :
/* SVX currently does not support more than one channel. */
if (info->channels != 1)
return 0 ;
/* Always big endian. */
if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU)
return 0 ;
if ((subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16) && info->channels == 1)
return 1 ;
break ;
case SF_FORMAT_NIST :
if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
return 1 ;
if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
return 1 ;
if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
return 1 ;
break ;
case SF_FORMAT_IRCAM :
if (subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
return 1 ;
if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW || subformat == SF_FORMAT_FLOAT)
return 1 ;
break ;
case SF_FORMAT_VOC :
/* VOC is strictly little endian. */
if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
return 0 ;
if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16)
return 1 ;
if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
return 1 ;
break ;
case SF_FORMAT_W64 :
/* W64 is strictly little endian. */
if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
return 0 ;
if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16)
return 1 ;
if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
return 1 ;
if ((subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) && info->channels <= 2)
return 1 ;
if (subformat == SF_FORMAT_GSM610 && info->channels == 1)
return 1 ;
if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
return 1 ;
if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
return 1 ;
break ;
case SF_FORMAT_SD2 :
/* SD2 is strictly big endian. */
if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU)
return 0 ;
if (subformat == SF_FORMAT_PCM_16)
return 1 ;
break ;
default : break ;
} ;
return 0 ;
} /* sf_format_check */
/*------------------------------------------------------------------------------
*/
int
sf_command (SNDFILE *sndfile, int command, void *data, int datasize)
{ SF_PRIVATE *psf = NULL ;
/*-command = hash_command (cmd) ;-*/
/* This set of commands do not need the sndfile parameter. */
switch (command)
{ case SFC_GET_LIB_VERSION :
strncpy (data, PACKAGE "-" VERSION, datasize - 1) ;
((char*) data) [datasize - 1] = 0 ;
return 0 ;
case SFC_GET_SIMPLE_FORMAT_COUNT :
if (! data || datasize != SIGNED_SIZEOF (int))
return (sf_errno = SFE_BAD_CONTROL_CMD) ;
*((int*) data) = psf_get_format_simple_count () ;
return 0 ;
case SFC_GET_SIMPLE_FORMAT :
if (! data || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO))
return (sf_errno = SFE_BAD_CONTROL_CMD) ;
return psf_get_format_simple (data) ;
case SFC_GET_FORMAT_MAJOR_COUNT :
if (! data || datasize != SIGNED_SIZEOF (int))
return (sf_errno = SFE_BAD_CONTROL_CMD) ;
*((int*) data) = psf_get_format_major_count () ;
return 0 ;
case SFC_GET_FORMAT_MAJOR :
if (! data || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO))
return (sf_errno = SFE_BAD_CONTROL_CMD) ;
return psf_get_format_major (data) ;
case SFC_GET_FORMAT_SUBTYPE_COUNT :
if (! data || datasize != SIGNED_SIZEOF (int))
return (sf_errno = SFE_BAD_CONTROL_CMD) ;
*((int*) data) = psf_get_format_subtype_count () ;
return 0 ;
case SFC_GET_FORMAT_SUBTYPE :
if (! data || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO))
return (sf_errno = SFE_BAD_CONTROL_CMD) ;
return psf_get_format_subtype (data) ;
} ;
if (! sndfile && command == SFC_GET_LOG_INFO)
{ if (! data)
return (psf->error = SFE_BAD_CONTROL_CMD) ;
strncpy (data, sf_logbuffer, datasize) ;
((char*) data) [datasize - 1] = 0 ;
return 0 ;
} ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
switch (command)
{ case SFC_SET_NORM_FLOAT :
psf->norm_float = (datasize) ? SF_TRUE : SF_FALSE ;
break ;
case SFC_SET_NORM_DOUBLE :
psf->norm_double = (datasize) ? SF_TRUE : SF_FALSE ;
break ;
case SFC_GET_NORM_FLOAT :
return psf->norm_float ;
case SFC_GET_NORM_DOUBLE :
return psf->norm_double ;
case SFC_GET_LOG_INFO :
if (! data)
return (psf->error = SFE_BAD_CONTROL_CMD) ;
strncpy (data, psf->logbuffer, datasize) ;
((char*) data) [datasize - 1] = 0 ;
break ;
case SFC_CALC_SIGNAL_MAX :
if (! data || datasize != sizeof (double))
return (psf->error = SFE_BAD_CONTROL_CMD) ;
*((double*) data) = psf_calc_signal_max (psf) ;
break ;
default :
/* Must be a file specific command. Pass it on. */
if (psf->command)
return psf->command (psf, command, data, datasize) ;
psf_log_printf (psf, "*** sf_command : cmd = 0x%X\n", command) ;
return (psf->error = SFE_BAD_CONTROL_CMD) ;
} ;
return 0 ;
} /* sf_command */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_seek (SNDFILE *sndfile, sf_count_t offset, int whence)
{ SF_PRIVATE *psf ;
sf_count_t seek_from_start = 0, retval ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (! psf->sf.seekable)
{ psf->error = SFE_NOT_SEEKABLE ;
return ((sf_count_t) -1) ;
} ;
/* If the whence parameter has a mode ORed in, check to see that
** it makes sense.
*/
if (((whence & SFM_MASK) == SFM_WRITE && psf->mode == SFM_READ) ||
((whence & SFM_MASK) == SFM_WRITE && psf->mode == SFM_WRITE))
{ psf->error = SFE_WRONG_SEEK ;
return ((sf_count_t) -1) ;
} ;
/* Convert all SEEK_CUR and SEEK_END into seek_from_start to be
** used with SEEK_SET.
*/
switch (whence)
{ /* The SEEK_SET behaviour is independant of mode. */
case SEEK_SET :
case SEEK_SET | SFM_READ :
case SEEK_SET | SFM_WRITE :
case SEEK_SET | SFM_RDWR :
seek_from_start = offset ;
break ;
/* The SEEK_CUR is a little more tricky. */
case SEEK_CUR :
if (psf->mode == SFM_READ)
seek_from_start = psf->read_current + offset ;
else if (psf->mode == SFM_WRITE)
seek_from_start = psf->write_current + offset ;
else
psf->error = SFE_AMBIGUOUS_SEEK ;
break ;
case SEEK_CUR | SFM_READ :
/*=====================================
if (offset == 0)
return psf->read_current ;
=====================================*/
seek_from_start = psf->read_current + offset ;
break ;
case SEEK_CUR | SFM_WRITE :
seek_from_start = psf->write_current + offset ;
break ;
/* The SEEK_END */
case SEEK_END :
if (psf->mode != SFM_READ && psf->mode != SFM_WRITE)
psf->error = SFE_AMBIGUOUS_SEEK ;
else
seek_from_start = psf->sf.samples + offset ;
break ;
case SEEK_END | SFM_READ :
seek_from_start = psf->sf.samples + offset ;
/*=======================================
if (seek_from_start == psf->read_current)
return psf->read_current ;
=======================================*/
break ;
case SEEK_END | SFM_WRITE :
seek_from_start = psf->sf.samples + offset ;
break ;
default :
psf->error = SFE_BAD_SEEK ;
break ;
} ;
if (psf->error)
return ((sf_count_t) -1) ;
if (seek_from_start < 0 || seek_from_start > psf->sf.samples)
{ psf->error = SFE_BAD_SEEK ;
return ((sf_count_t) -1) ;
} ;
if (psf->new_seek)
{ int new_mode = (whence & SFM_MASK) ? (whence & SFM_MASK) : psf->mode ;
retval = psf->new_seek (psf, new_mode, seek_from_start) ;
switch (new_mode)
{ case SFM_READ :
psf->read_current = retval ;
break ;
case SFM_WRITE :
psf->write_current = retval ;
break ;
case SFM_RDWR :
psf->read_current = retval ;
psf->write_current = retval ;
new_mode = SFM_READ ;
break ;
} ;
psf->last_op = new_mode ;
return retval ;
} ;
psf->error = SFE_AMBIGUOUS_SEEK ;
return ((sf_count_t) -1) ;
} /* sf_seek */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_read_raw (SNDFILE *sndfile, void *ptr, sf_count_t bytes)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (bytes < 0 || psf->read_current >= psf->datalength)
{ memset (ptr, 0, bytes) ;
return 0 ;
} ;
if (bytes % (psf->sf.channels * psf->bytewidth))
{ psf->error = SFE_BAD_READ_ALIGN ;
return 0 ;
} ;
count = psf_fread (ptr, 1, bytes, psf->filedes) ;
if (count < bytes)
memset (((char*)ptr) + count, 0, bytes - count) ;
psf->read_current += count / psf->blockwidth ;
psf->last_op = SFM_READ ;
return count ;
} /* sf_read_raw */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_read_short (SNDFILE *sndfile, short *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count, extra ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (len % psf->sf.channels)
{ psf->error = SFE_BAD_READ_ALIGN ;
return 0 ;
} ;
if (len <= 0 || psf->read_current >= psf->sf.samples)
{ memset (ptr, 0, len * sizeof (short)) ;
return 0 ; /* End of file. */
} ;
if (! psf->read_short || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_READ)
if (psf->new_seek (psf, SFM_READ, psf->read_current) < 0)
return 0 ;
count = psf->read_short (psf, ptr, len) ;
if (psf->read_current + count / psf->sf.channels > psf->sf.samples)
{ count = (psf->sf.samples - psf->read_current) * psf->sf.channels ;
extra = len - count ;
memset (ptr + count, 0, extra * sizeof (short)) ;
psf->read_current = psf->sf.samples ;
} ;
psf->read_current += count / psf->sf.channels ;
psf->last_op = SFM_READ ;
return count ;
} /* sf_read_short */
sf_count_t
sf_readf_short (SNDFILE *sndfile, short *ptr, sf_count_t frames)
{ SF_PRIVATE *psf ;
sf_count_t count, extra ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (frames <= 0 || psf->read_current >= psf->sf.samples)
{ memset (ptr, 0, frames * psf->sf.channels * sizeof (short)) ;
return 0 ; /* End of file. */
} ;
if (! psf->read_short || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_READ)
if (psf->new_seek (psf, SFM_READ, psf->read_current) < 0)
return 0 ;
count = psf->read_short (psf, ptr, frames * psf->sf.channels) ;
if (psf->read_current + count / psf->sf.channels > psf->sf.samples)
{ count = (psf->sf.samples - psf->read_current) * psf->sf.channels ;
extra = frames * psf->sf.channels - count ;
memset (ptr + count, 0, extra * sizeof (short)) ;
psf->read_current = psf->sf.samples ;
} ;
psf->read_current += count / psf->sf.channels ;
psf->last_op = SFM_READ ;
return count / psf->sf.channels ;
} /* sf_readf_short */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_read_int (SNDFILE *sndfile, int *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count, extra ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile,psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (len % psf->sf.channels)
{ psf->error = SFE_BAD_READ_ALIGN ;
return 0 ;
} ;
if (len <= 0 || psf->read_current >= psf->sf.samples)
{ memset (ptr, 0, len * sizeof (int)) ;
return 0 ;
} ;
if (! psf->read_int || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_READ)
if (psf->new_seek (psf, SFM_READ, psf->read_current) < 0)
return 0 ;
count = psf->read_int (psf, ptr, len) ;
if (psf->read_current + count / psf->sf.channels > psf->sf.samples)
{ count = (psf->sf.samples - psf->read_current) * psf->sf.channels ;
extra = len - count ;
memset (ptr + count, 0, extra * sizeof (int)) ;
psf->read_current = psf->sf.samples ;
} ;
psf->read_current += count / psf->sf.channels ;
psf->last_op = SFM_READ ;
return count ;
} /* sf_read_int */
sf_count_t
sf_readf_int (SNDFILE *sndfile, int *ptr, sf_count_t frames)
{ SF_PRIVATE *psf ;
sf_count_t count, extra ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile,psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (frames <= 0 || psf->read_current >= psf->sf.samples)
{ memset (ptr, 0, frames * psf->sf.channels * sizeof (int)) ;
return 0 ;
} ;
if (! psf->read_int || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_READ)
if (psf->new_seek (psf, SFM_READ, psf->read_current) < 0)
return 0 ;
count = psf->read_int (psf, ptr, frames * psf->sf.channels) ;
if (psf->read_current + count / psf->sf.channels > psf->sf.samples)
{ count = (psf->sf.samples - psf->read_current) * psf->sf.channels ;
extra = frames * psf->sf.channels - count ;
memset (ptr + count, 0, extra * sizeof (int)) ;
psf->read_current = psf->sf.samples ;
} ;
psf->read_current += count / psf->sf.channels ;
psf->last_op = SFM_READ ;
return count / psf->sf.channels ;
} /* sf_readf_int */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_read_float (SNDFILE *sndfile, float *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count, extra ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile,psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (len % psf->sf.channels)
{ psf->error = SFE_BAD_READ_ALIGN ;
return 0 ;
} ;
if (len <= 0 || psf->read_current >= psf->sf.samples)
{ memset (ptr, 0, len * sizeof (float)) ;
return 0 ;
} ;
if (! psf->read_float || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_READ)
if (psf->new_seek (psf, SFM_READ, psf->read_current) < 0)
return 0 ;
count = psf->read_float (psf, ptr, len) ;
if (psf->read_current + count / psf->sf.channels > psf->sf.samples)
{ count = (psf->sf.samples - psf->read_current) * psf->sf.channels ;
extra = len - count ;
memset (ptr + count, 0, extra * sizeof (float)) ;
psf->read_current = psf->sf.samples ;
} ;
psf->read_current += count / psf->sf.channels ;
psf->last_op = SFM_READ ;
return count ;
} /* sf_read_float */
sf_count_t
sf_readf_float (SNDFILE *sndfile, float *ptr, sf_count_t frames)
{ SF_PRIVATE *psf ;
sf_count_t count, extra ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile,psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (frames <= 0 || psf->read_current >= psf->sf.samples)
{ memset (ptr, 0, frames * psf->sf.channels * sizeof (float)) ;
return 0 ;
} ;
if (! psf->read_float || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_READ)
if (psf->new_seek (psf, SFM_READ, psf->read_current) < 0)
return 0 ;
count = psf->read_float (psf, ptr, frames * psf->sf.channels) ;
if (psf->read_current + count / psf->sf.channels > psf->sf.samples)
{ count = (psf->sf.samples - psf->read_current) * psf->sf.channels ;
extra = frames * psf->sf.channels - count ;
memset (ptr + count, 0, extra * sizeof (float)) ;
psf->read_current = psf->sf.samples ;
} ;
psf->read_current += count / psf->sf.channels ;
psf->last_op = SFM_READ ;
return count / psf->sf.channels ;
} /* sf_readf_float */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_read_double (SNDFILE *sndfile, double *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count, extra ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (len % psf->sf.channels)
{ psf->error = SFE_BAD_READ_ALIGN ;
return 0 ;
} ;
if (len <= 0 || psf->read_current >= psf->sf.samples)
{ memset (ptr, 0, len * sizeof (double)) ;
return 0 ;
} ;
if (! psf->read_double || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_READ)
if (psf->new_seek (psf, SFM_READ, psf->read_current) < 0)
return 0 ;
count = psf->read_double (psf, ptr, len) ;
if (psf->read_current + count / psf->sf.channels > psf->sf.samples)
{ count = (psf->sf.samples - psf->read_current) * psf->sf.channels ;
extra = len - count ;
memset (ptr + count, 0, extra * sizeof (double)) ;
psf->read_current = psf->sf.samples ;
} ;
psf->read_current += count / psf->sf.channels ;
psf->last_op = SFM_READ ;
return count ;
} /* sf_read_double */
sf_count_t
sf_readf_double (SNDFILE *sndfile, double *ptr, sf_count_t frames)
{ SF_PRIVATE *psf ;
sf_count_t count, extra ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_WRITE)
{ psf->error = SFE_NOT_READMODE ;
return 0 ;
} ;
if (frames <= 0 || psf->read_current >= psf->sf.samples)
{ memset (ptr, 0, frames * psf->sf.channels * sizeof (double)) ;
return 0 ;
} ;
if (! psf->read_double || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_READ)
if (psf->new_seek (psf, SFM_READ, psf->read_current) < 0)
return 0 ;
count = psf->read_double (psf, ptr, frames * psf->sf.channels) ;
if (psf->read_current + count / psf->sf.channels > psf->sf.samples)
{ count = (psf->sf.samples - psf->read_current) * psf->sf.channels ;
extra = frames * psf->sf.channels - count ;
memset (ptr + count, 0, extra * sizeof (double)) ;
psf->read_current = psf->sf.samples ;
} ;
psf->read_current += count / psf->sf.channels ;
psf->last_op = SFM_READ ;
return count / psf->sf.channels ;
} /* sf_readf_double */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_write_raw (SNDFILE *sndfile, void *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (len % (psf->sf.channels * psf->bytewidth))
{ psf->error = SFE_BAD_WRITE_ALIGN ;
return 0 ;
} ;
count = psf_fwrite (ptr, 1, len, psf->filedes) ;
psf->write_current += count / psf->blockwidth ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count ;
} /* sf_write_raw */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_write_short (SNDFILE *sndfile, short *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (len % psf->sf.channels)
{ psf->error = SFE_BAD_WRITE_ALIGN ;
return 0 ;
} ;
if (! psf->write_short || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_WRITE)
if (psf->new_seek (psf, SFM_WRITE, psf->write_current) < 0)
return 0 ;
count = psf->write_short (sndfile, ptr, len) ;
psf->write_current += count / psf->sf.channels ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count ;
} /* sf_write_short */
sf_count_t
sf_writef_short (SNDFILE *sndfile, short *ptr, sf_count_t frames)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (! psf->write_short || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_WRITE)
if (psf->new_seek (psf, SFM_WRITE, psf->write_current) < 0)
return 0 ;
count = psf->write_short (sndfile, ptr, frames * psf->sf.channels) ;
psf->write_current += count / psf->sf.channels ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count / psf->sf.channels ;
} /* sf_writef_short */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_write_int (SNDFILE *sndfile, int *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (len % psf->sf.channels)
{ psf->error = SFE_BAD_WRITE_ALIGN ;
return 0 ;
} ;
if (! psf->write_int || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_WRITE)
if (psf->new_seek (psf, SFM_WRITE, psf->write_current) < 0)
return 0 ;
count = psf->write_int (sndfile, ptr, len) ;
psf->write_current += count / psf->sf.channels ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count ;
} /* sf_write_int */
sf_count_t
sf_writef_int (SNDFILE *sndfile, int *ptr, sf_count_t frames)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (! psf->write_int || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_WRITE)
if (psf->new_seek (psf, SFM_WRITE, psf->write_current) < 0)
return 0 ;
count = psf->write_int (sndfile, ptr, frames * psf->sf.channels) ;
psf->write_current += count / psf->sf.channels ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count / psf->sf.channels ;
} /* sf_writef_int */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_write_float (SNDFILE *sndfile, float *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (len % psf->sf.channels)
{ psf->error = SFE_BAD_WRITE_ALIGN ;
return 0 ;
} ;
if (! psf->write_float || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_WRITE)
if (psf->new_seek (psf, SFM_WRITE, psf->write_current) < 0)
return 0 ;
count = psf->write_float (sndfile, ptr, len) ;
psf->write_current += count / psf->sf.channels ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count ;
} /* sf_write_float */
sf_count_t
sf_writef_float (SNDFILE *sndfile, float *ptr, sf_count_t frames)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (! psf->write_float || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_WRITE)
if (psf->new_seek (psf, SFM_WRITE, psf->write_current) < 0)
return 0 ;
count = psf->write_float (sndfile, ptr, frames * psf->sf.channels) ;
psf->write_current += count / psf->sf.channels ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count / psf->sf.channels ;
} /* sf_writef_float */
/*------------------------------------------------------------------------------
*/
sf_count_t
sf_write_double (SNDFILE *sndfile, double *ptr, sf_count_t len)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (len % psf->sf.channels)
{ psf->error = SFE_BAD_WRITE_ALIGN ;
return 0 ;
} ;
if (! psf->write_double || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_WRITE)
if (psf->new_seek (psf, SFM_WRITE, psf->write_current) < 0)
return 0 ;
count = psf->write_double (sndfile, ptr, len) ;
psf->write_current += count / psf->sf.channels ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count ;
} /* sf_write_double */
sf_count_t
sf_writef_double (SNDFILE *sndfile, double *ptr, sf_count_t frames)
{ SF_PRIVATE *psf ;
sf_count_t count ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->mode == SFM_READ)
{ psf->error = SFE_NOT_WRITEMODE ;
return 0 ;
} ;
if (! psf->write_double || ! psf->new_seek)
{ psf->error = SFE_UNIMPLEMENTED ;
return 0 ;
} ;
if (psf->last_op != SFM_WRITE)
if (psf->new_seek (psf, SFM_WRITE, psf->write_current) < 0)
return 0 ;
count = psf->write_double (sndfile, ptr, frames * psf->sf.channels) ;
psf->write_current += count / psf->sf.channels ;
if (psf->write_current > psf->sf.samples)
psf->sf.samples = psf->write_current ;
psf->last_op = SFM_WRITE ;
return count / psf->sf.channels ;
} /* sf_writef_double */
/*------------------------------------------------------------------------------
*/
int
sf_close (SNDFILE *sndfile)
{ SF_PRIVATE *psf ;
int error ;
VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf) ;
if (psf->close)
error = psf->close (psf) ;
psf_fclose (psf->filedes) ;
if (psf->fdata)
free (psf->fdata) ;
memset (psf, 0, sizeof (SF_PRIVATE)) ;
free (psf) ;
return 0 ;
} /* sf_close */
/*=========================================================================
** Private functions.
*/
static int
does_extension_match (const char *ext, const char *test)
{ char c1, c2 ;
if ((! ext) || (! test))
return 0 ;
if (strlen (ext) != strlen (test))
return 0 ;
while (*ext && *test)
{ c1 = tolower (*ext) ;
c2 = tolower (*test) ;
if (c1 > c2)
return 0 ;
if (c1 < c2)
return 0 ;
ext ++ ;
test ++ ;
}
return 1 ;
} /* does_extension_match */
static int
is_au_snd_file (const char *filename)
{ const char *cptr ;
if (! (cptr = strrchr (filename, '.')))
return 0 ;
cptr ++ ;
if (does_extension_match (cptr, "au"))
return 1 ;
if (does_extension_match (cptr, "snd"))
return 1 ;
return 0 ;
} /* is_au_snd_file */
static int
guess_file_type (SF_PRIVATE *psf, const char *filename)
{ int buffer [3] ;
unsigned char cptr [0x40] ;
if (psf_binheader_readf (psf, "b", &buffer, sizeof (buffer)) != sizeof (buffer))
{ psf->error = SFE_BAD_FILE_READ ;
return 0 ;
} ;
if (buffer [0] == MAKE_MARKER ('R','I','F','F') && buffer [2] == MAKE_MARKER ('W','A','V','E'))
return SF_FORMAT_WAV ;
if (buffer [0] == MAKE_MARKER ('F','O','R','M'))
{ if (buffer [2] == MAKE_MARKER ('A','I','F','F') || buffer [2] == MAKE_MARKER ('A','I','F','C'))
return SF_FORMAT_AIFF ;
if (buffer [2] == MAKE_MARKER ('8','S','V','X') || buffer [2] == MAKE_MARKER ('1','6','S','V'))
return SF_FORMAT_SVX ;
return 0 ;
} ;
if ((buffer [0] == MAKE_MARKER ('.','s','n','d') || buffer [0] == MAKE_MARKER ('d','n','s','.')))
return SF_FORMAT_AU ;
if ((buffer [0] == MAKE_MARKER ('f','a','p',' ') || buffer [0] == MAKE_MARKER (' ','p','a','f')))
return SF_FORMAT_PAF ;
if (buffer [0] == MAKE_MARKER ('N','I','S','T'))
return SF_FORMAT_NIST ;
if (buffer [0] == MAKE_MARKER ('C','r','e','a') && buffer [1] == MAKE_MARKER ('t','i','v','e'))
return SF_FORMAT_VOC ;
if ((buffer [0] & MAKE_MARKER (0xFF, 0xFF, 0xF8, 0xFF)) == MAKE_MARKER (0x64, 0xA3, 0x00, 0x00) ||
(buffer [0] & MAKE_MARKER (0xFF, 0xF8, 0xFF, 0xFF)) == MAKE_MARKER (0x00, 0x00, 0xA3, 0x64))
return SF_FORMAT_IRCAM ;
if ((buffer [0] == MAKE_MARKER ('r', 'i', 'f', 'f')))
return SF_FORMAT_W64 ;
if (buffer [0] == MAKE_MARKER ('S','E','K','D') && buffer [1] == MAKE_MARKER ('S','A','M','R'))
return SF_FORMAT_SMPLTD ;
if (buffer [0] == MAKE_MARKER ('C', 'A', 'T', ' ') && buffer [2] == MAKE_MARKER ('R', 'E', 'X', '2'))
return SF_FORMAT_REX2 ;
if (buffer [0] == MAKE_MARKER (0x30, 0x26, 0xB2, 0x75) && buffer [1] == MAKE_MARKER (0x8E, 0x66, 0xCF, 0x11))
return SF_FORMAT_WMA ;
/* Turtle Beach SMP 16-bit */
if (buffer [0] == MAKE_MARKER ('S', 'O', 'U', 'N') && buffer [1] == MAKE_MARKER ('D', ' ', 'S', 'A'))
return 0 ;
if (buffer [0] == MAKE_MARKER ('S', 'Y', '8', '0') || buffer [0] == MAKE_MARKER ('S', 'Y', '8', '5'))
return 0 ;
if (buffer [0] == MAKE_MARKER ('L', 'M', '8', '9'))
return SF_FORMAT_TXW ;
if (buffer [0] == MAKE_MARKER ('a', 'j', 'k', 'g'))
return SF_FORMAT_SHN ;
/* Detect wacky MacOS header stuff. This might be "Sound Designer II". */
memcpy (cptr , buffer, sizeof (buffer)) ;
if (cptr [0] == 0 && cptr [1] > 0 && psf->sf.seekable)
{ psf_binheader_readf (psf, "pb", 0, &cptr, sizeof (cptr)) ;
if (cptr [1] < (sizeof (cptr) - 3) && cptr [cptr [1] + 2] == 0 && strlen (((char*) cptr) + 2) == cptr [1])
{ psf_log_printf (psf, "Weird MacOS Header.\n") ;
psf_binheader_readf (psf, "em", &buffer) ;
if (buffer [0] == MAKE_MARKER (0, 'S', 'd', '2'))
return SF_FORMAT_SD2 ;
} ;
} ;
/* This must be the last one. */
if (filename && is_au_snd_file (filename))
return SF_FORMAT_AU | SF_FORMAT_ULAW ;
/* Default to header-less RAW PCM file type. */
return SF_FORMAT_RAW ;
} /* guess_file_type */
static int
validate_sfinfo (SF_INFO *sfinfo)
{ if (sfinfo->samplerate < 0)
return 0 ;
if (sfinfo->samples < 0)
return 0 ;
if (sfinfo->channels < 0)
return 0 ;
if (! sfinfo->format & SF_FORMAT_TYPEMASK)
return 0 ;
if (! sfinfo->format & SF_FORMAT_SUBMASK)
return 0 ;
if (! sfinfo->sections)
return 0 ;
return 1 ;
} /* validate_sfinfo */
static int
validate_psf (SF_PRIVATE *psf)
{
if (psf->datalength < 0)
{ psf_log_printf (psf, "Invalid SF_PRIVATE field : datalength == %d.\n", psf->datalength) ;
return 0 ;
} ;
if (psf->dataoffset < 0)
{ psf_log_printf (psf, "Invalid SF_PRIVATE field : datalength == %d.\n", psf->datalength) ;
return 0 ;
} ;
if (psf->blockwidth && psf->blockwidth != psf->sf.channels * psf->bytewidth)
{ psf_log_printf (psf, "Invalid SF_PRIVATE field : channels * bytewidth == %d.\n",
psf->sf.channels * psf->bytewidth) ;
return 0 ;
} ;
return 1 ;
} /* validate_psf */
static void
save_header_info (SF_PRIVATE *psf)
{ memset (sf_logbuffer, 0, sizeof (sf_logbuffer)) ;
strncpy (sf_logbuffer, psf->logbuffer, sizeof (sf_logbuffer)) ;
} /* save_header_info */
static void
copy_filename (SF_PRIVATE *psf, const char *path)
{ const char *cptr ;
if ((cptr = strrchr (path, '/')) || (cptr = strrchr (path, '\\')))
cptr ++ ;
else
cptr = path ;
memset (psf->filename, 0, SF_FILENAME_LEN) ;
strncpy (psf->filename, cptr, SF_FILENAME_LEN - 1) ;
psf->filename [SF_FILENAME_LEN - 1] = 0 ;
} /* copy_filename */
/*-static int
hash_command (const char *cmd)
{ int hash = 0 ;
if (! cmd)
return 0 ;
while (cmd [0])
{ hash = (hash << 1) ^ cmd [0] ;
cmd ++ ;
} ;
return hash ;
} /+* hash_command *+/
-*/