ref: f8b39149f76c85a5277558b2b64aac7589a7b93a
dir: /common/libsndfile/src/wav.c/
/*
** Copyright (C) 1999-2001 Erik de Castro Lopo <erikd@zip.com.au>
**
** 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 <string.h>
#include <ctype.h>
#include <time.h>
#include "sndfile.h"
#include "config.h"
#include "sfendian.h"
#include "common.h"
#include "wav.h"
/*------------------------------------------------------------------------------
** List of known WAV format tags
*/
enum
{
WAVE_FORMAT_UNKNOWN = 0x0000, /* Microsoft Corporation */
WAVE_FORMAT_PCM = 0x0001, /* Microsoft PCM format */
WAVE_FORMAT_MS_ADPCM = 0x0002, /* Microsoft ADPCM */
WAVE_FORMAT_IEEE_FLOAT = 0x0003, /* Micrososft 32 bit float format */
WAVE_FORMAT_IBM_CVSD = 0x0005, /* IBM Corporation */
WAVE_FORMAT_ALAW = 0x0006, /* Microsoft Corporation */
WAVE_FORMAT_MULAW = 0x0007, /* Microsoft Corporation */
WAVE_FORMAT_OKI_ADPCM = 0x0010, /* OKI */
WAVE_FORMAT_IMA_ADPCM = 0x0011, /* Intel Corporation */
WAVE_FORMAT_MEDIASPACE_ADPCM = 0x0012, /* Videologic */
WAVE_FORMAT_SIERRA_ADPCM = 0x0013, /* Sierra Semiconductor Corp */
WAVE_FORMAT_G723_ADPCM = 0x0014, /* Antex Electronics Corporation */
WAVE_FORMAT_DIGISTD = 0x0015, /* DSP Solutions, Inc. */
WAVE_FORMAT_DIGIFIX = 0x0016, /* DSP Solutions, Inc. */
WAVE_FORMAT_DIALOGIC_OKI_ADPCM = 0x0017, /* Dialogic Corporation */
WAVE_FORMAT_MEDIAVISION_ADPCM = 0x0018, /* Media Vision, Inc. */
WAVE_FORMAT_YAMAHA_ADPCM = 0x0020, /* Yamaha Corporation of America */
WAVE_FORMAT_SONARC = 0x0021, /* Speech Compression */
WAVE_FORMAT_DSPGROUP_TRUESPEECH = 0x0022, /* DSP Group, Inc */
WAVE_FORMAT_ECHOSC1 = 0x0023, /* Echo Speech Corporation */
WAVE_FORMAT_AUDIOFILE_AF18 = 0x0024, /* Audiofile, Inc. */
WAVE_FORMAT_APTX = 0x0025, /* Audio Processing Technology */
WAVE_FORMAT_AUDIOFILE_AF10 = 0x0026, /* Audiofile, Inc. */
WAVE_FORMAT_DOLBY_AC2 = 0x0030, /* Dolby Laboratories */
WAVE_FORMAT_GSM610 = 0x0031, /* Microsoft Corporation */
WAVE_FORMAT_MSNAUDIO = 0x0032, /* Microsoft Corporation */
WAVE_FORMAT_ANTEX_ADPCME = 0x0033, /* Antex Electronics Corporation */
WAVE_FORMAT_CONTROL_RES_VQLPC = 0x0034, /* Control Resources Limited */
WAVE_FORMAT_DIGIREAL = 0x0035, /* DSP Solutions, Inc. */
WAVE_FORMAT_DIGIADPCM = 0x0036, /* DSP Solutions, Inc. */
WAVE_FORMAT_CONTROL_RES_CR10 = 0x0037, /* Control Resources Limited */
WAVE_FORMAT_NMS_VBXADPCM = 0x0038, /* Natural MicroSystems */
WAVE_FORMAT_ROCKWELL_ADPCM = 0x003B, /* Rockwell International */
WAVE_FORMAT_ROCKWELL_DIGITALK = 0x003C, /* Rockwell International */
WAVE_FORMAT_G721_ADPCM = 0x0040, /* Antex Electronics Corporation */
WAVE_FORMAT_MPEG = 0x0050, /* Microsoft Corporation */
WAVE_FORMAT_MPEGLAYER3 = 0x0055, /* MPEG 3 Layer 1 */
IBM_FORMAT_MULAW = 0x0101, /* IBM mu-law format */
IBM_FORMAT_ALAW = 0x0102, /* IBM a-law format */
IBM_FORMAT_ADPCM = 0x0103, /* IBM AVC Adaptive Differential PCM format */
WAVE_FORMAT_CREATIVE_ADPCM = 0x0200, /* Creative Labs, Inc */
WAVE_FORMAT_FM_TOWNS_SND = 0x0300, /* Fujitsu Corp. */
WAVE_FORMAT_OLIGSM = 0x1000, /* Ing C. Olivetti & C., S.p.A. */
WAVE_FORMAT_OLIADPCM = 0x1001, /* Ing C. Olivetti & C., S.p.A. */
WAVE_FORMAT_OLICELP = 0x1002, /* Ing C. Olivetti & C., S.p.A. */
WAVE_FORMAT_OLISBC = 0x1003, /* Ing C. Olivetti & C., S.p.A. */
WAVE_FORMAT_OLIOPR = 0x1004, /* Ing C. Olivetti & C., S.p.A. */
WAVE_FORMAT_EXTENSIBLE = 0xFFFE
} ;
#define FACT_CHUNK_SIZE sizeof (int)
/*------------------------------------------------------------------------------
* Macros to handle big/little endian issues.
*/
#define RIFF_MARKER (MAKE_MARKER ('R', 'I', 'F', 'F'))
#define WAVE_MARKER (MAKE_MARKER ('W', 'A', 'V', 'E'))
#define fmt_MARKER (MAKE_MARKER ('f', 'm', 't', ' '))
#define data_MARKER (MAKE_MARKER ('d', 'a', 't', 'a'))
#define fact_MARKER (MAKE_MARKER ('f', 'a', 'c', 't'))
#define PEAK_MARKER (MAKE_MARKER ('P', 'E', 'A', 'K'))
#define cue_MARKER (MAKE_MARKER ('c', 'u', 'e', ' '))
#define LIST_MARKER (MAKE_MARKER ('L', 'I', 'S', 'T'))
#define slnt_MARKER (MAKE_MARKER ('s', 'l', 'n', 't'))
#define wavl_MARKER (MAKE_MARKER ('w', 'a', 'v', 'l'))
#define INFO_MARKER (MAKE_MARKER ('I', 'N', 'F', 'O'))
#define plst_MARKER (MAKE_MARKER ('p', 'l', 's', 't'))
#define adtl_MARKER (MAKE_MARKER ('a', 'd', 't', 'l'))
#define labl_MARKER (MAKE_MARKER ('l', 'a', 'b', 'l'))
#define note_MARKER (MAKE_MARKER ('n', 'o', 't', 'e'))
#define smpl_MARKER (MAKE_MARKER ('s', 'm', 'p', 'l'))
#define bext_MARKER (MAKE_MARKER ('b', 'e', 'x', 't'))
#define MEXT_MARKER (MAKE_MARKER ('M', 'E', 'X', 'T'))
#define DISP_MARKER (MAKE_MARKER ('D', 'I', 'S', 'P'))
#define acid_MARKER (MAKE_MARKER ('a', 'c', 'i', 'd'))
#define PAD_MARKER (MAKE_MARKER ('P', 'A', 'D', ' '))
#define adtl_MARKER (MAKE_MARKER ('a', 'd', 't', 'l'))
#define ISFT_MARKER (MAKE_MARKER ('I', 'S', 'F', 'T'))
#define ICRD_MARKER (MAKE_MARKER ('I', 'C', 'R', 'D'))
#define ICOP_MARKER (MAKE_MARKER ('I', 'C', 'O', 'P'))
#define IART_MARKER (MAKE_MARKER ('I', 'A', 'R', 'T'))
#define INAM_MARKER (MAKE_MARKER ('I', 'N', 'A', 'M'))
#define IENG_MARKER (MAKE_MARKER ('I', 'E', 'N', 'G'))
#define IART_MARKER (MAKE_MARKER ('I', 'A', 'R', 'T'))
#define ICOP_MARKER (MAKE_MARKER ('I', 'C', 'O', 'P'))
#define IPRD_MARKER (MAKE_MARKER ('I', 'P', 'R', 'D'))
#define ISRC_MARKER (MAKE_MARKER ('I', 'S', 'R', 'C'))
#define ISBJ_MARKER (MAKE_MARKER ('I', 'S', 'B', 'J'))
#define ICMT_MARKER (MAKE_MARKER ('I', 'C', 'M', 'T'))
enum {
HAVE_RIFF = 0x01,
HAVE_WAVE = 0x02,
HAVE_fmt = 0x04,
HAVE_fact = 0x08,
HAVE_PEAK = 0x10,
HAVE_data = 0x20
} ;
/*------------------------------------------------------------------------------
* Private static functions.
*/
static int wav_close (SF_PRIVATE *psf) ;
static int read_fmt_chunk (SF_PRIVATE *psf, WAV_FMT *wav_fmt) ;
static int wav_write_header (SF_PRIVATE *psf) ;
static int wav_write_tailer (SF_PRIVATE *psf) ;
static int wav_subchunk_parse (SF_PRIVATE *psf, int chunk) ;
static const char* wav_format_str (int k) ;
/*------------------------------------------------------------------------------
** Public functions.
*/
int
wav_open_read (SF_PRIVATE *psf)
{ WAV_FMT wav_fmt ;
FACT_CHUNK fact_chunk ;
unsigned int dword, marker, RIFFsize ;
int parsestage = 0, error, format = 0 ;
char *cptr ;
/* Set position to start of file to begin reading header. */
psf_binheader_readf (psf, "p", 0) ;
while (1)
{ psf_binheader_readf (psf, "m", &marker) ;
switch (marker)
{ case RIFF_MARKER :
if (parsestage)
return SFE_WAV_NO_RIFF ;
psf_binheader_readf (psf, "l", &RIFFsize) ;
if (psf->filelength < RIFFsize + 2 * sizeof (dword))
{ dword = psf->filelength - 2 * sizeof (dword);
psf_log_printf (psf, "RIFF : %d (should be %d)\n", RIFFsize, dword) ;
RIFFsize = dword ;
}
else
psf_log_printf (psf, "RIFF : %d\n", RIFFsize) ;
parsestage |= HAVE_RIFF ;
break ;
case WAVE_MARKER :
if ((parsestage & HAVE_RIFF) != HAVE_RIFF)
return SFE_WAV_NO_WAVE ;
psf_log_printf (psf, "WAVE\n") ;
parsestage |= HAVE_WAVE ;
break ;
case fmt_MARKER :
if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
return SFE_WAV_NO_FMT ;
if ((error = read_fmt_chunk (psf, &wav_fmt)))
return error ;
format = wav_fmt.format ;
parsestage |= HAVE_fmt ;
break ;
case data_MARKER :
if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
return SFE_WAV_NO_DATA ;
psf_binheader_readf (psf, "l", &(psf->datalength)) ;
psf->dataoffset = ftell (psf->file) ;
if (psf->filelength < psf->dataoffset + psf->datalength)
{ psf_log_printf (psf, "data : %d (should be %d)\n", psf->datalength, psf->filelength - psf->dataoffset) ;
psf->datalength = psf->filelength - psf->dataoffset ;
}
else
psf_log_printf (psf, "data : %d\n", psf->datalength) ;
if (format == WAVE_FORMAT_MS_ADPCM && psf->datalength % 2)
{ psf->datalength ++ ;
psf_log_printf (psf, "*** Data length odd. Increasing it by 1.\n") ;
} ;
parsestage |= HAVE_data ;
if (! psf->sf.seekable)
break ;
/* Seek past data and continue reading header. */
fseek (psf->file, psf->datalength, SEEK_CUR) ;
dword = ftell (psf->file) ;
if (dword != (long) (psf->dataoffset + psf->datalength))
psf_log_printf (psf, "*** fseek past end error ***\n", dword, psf->dataoffset + psf->datalength) ;
break ;
case fact_MARKER :
if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
return SFE_WAV_BAD_FACT ;
psf_binheader_readf (psf, "ll", &dword, &(fact_chunk.samples)) ;
if (dword > sizeof (fact_chunk))
psf_binheader_readf (psf, "j", (int) (dword - sizeof (fact_chunk))) ;
psf_log_printf (psf, "%D : %d\n", marker, dword) ;
psf_log_printf (psf, " samples : %d\n", fact_chunk.samples) ;
parsestage |= HAVE_fact ;
break ;
case PEAK_MARKER :
if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
return SFE_WAV_PEAK_B4_FMT ;
psf_binheader_readf (psf, "l", &dword) ;
psf_log_printf (psf, "%D : %d\n", marker, dword) ;
if (dword > sizeof (psf->peak))
{ psf_binheader_readf (psf, "j", dword) ;
psf_log_printf (psf, "*** File PEAK chunk bigger than sizeof (PEAK_CHUNK).\n") ;
return SFE_WAV_BAD_PEAK ;
} ;
if (dword != sizeof (psf->peak) - sizeof (psf->peak.peak) + psf->sf.channels * sizeof (PEAK_POS))
{ psf_binheader_readf (psf, "j", dword) ;
psf_log_printf (psf, "*** File PEAK chunk size doesn't fit with number of channels.\n") ;
return SFE_WAV_BAD_PEAK ;
} ;
psf_binheader_readf (psf, "ll", &(psf->peak.version), &(psf->peak.timestamp)) ;
if (psf->peak.version != 1)
psf_log_printf (psf, " version : %d *** (should be version 1)\n", psf->peak.version) ;
else
psf_log_printf (psf, " version : %d\n", psf->peak.version) ;
psf_log_printf (psf, " time stamp : %d\n", psf->peak.timestamp) ;
psf_log_printf (psf, " Ch Position Value\n") ;
cptr = (char *) psf->buffer ;
for (dword = 0 ; dword < psf->sf.channels ; dword++)
{ psf_binheader_readf (psf, "fl", &(psf->peak.peak[dword].value),
&(psf->peak.peak[dword].position)) ;
snprintf (cptr, sizeof (psf->buffer), " %2d %-12d %g\n",
dword, psf->peak.peak[dword].position, psf->peak.peak[dword].value) ;
cptr [sizeof (psf->buffer) - 1] = 0 ;
psf_log_printf (psf, cptr) ;
};
psf->has_peak = SF_TRUE ;
break ;
case INFO_MARKER :
case LIST_MARKER :
psf_log_printf (psf, "%D\n", marker) ;
if ((error = wav_subchunk_parse (psf, marker)))
return error ;
break ;
case bext_MARKER :
case cue_MARKER :
case DISP_MARKER :
case MEXT_MARKER :
psf_binheader_readf (psf, "l", &dword);
psf_log_printf (psf, "%D : %d\n", marker, dword) ;
dword += (dword & 1) ;
psf_binheader_readf (psf, "j", dword) ;
break ;
case smpl_MARKER :
case acid_MARKER :
case PAD_MARKER :
psf_binheader_readf (psf, "l", &dword);
psf_log_printf (psf, " *** %D : %d\n", marker, dword) ;
dword += (dword & 1) ;
psf_binheader_readf (psf, "j", dword) ;
break ;
default :
if (isprint ((marker >> 24) & 0xFF) && isprint ((marker >> 16) & 0xFF)
&& isprint ((marker >> 8) & 0xFF) && isprint (marker & 0xFF))
{ psf_binheader_readf (psf, "l", &dword);
psf_log_printf (psf, "*** %D : %d (unknown marker)\n", marker, dword) ;
psf_binheader_readf (psf, "j", dword);
break ;
} ;
if (ftell (psf->file) & 0x03)
{ psf_log_printf (psf, " Unknown chunk marker at position %d. Resynching.\n", dword - 4) ;
psf_binheader_readf (psf, "j", -3) ;
break ;
} ;
psf_log_printf (psf, "*** Unknown chunk marker : %X. Exiting parser.\n", marker) ;
break ;
} ; /* switch (dword) */
if (! psf->sf.seekable && (parsestage & HAVE_data))
break ;
if (ferror (psf->file))
{ psf_log_printf (psf, "*** Error on file handle. ***\n", marker) ;
clearerr (psf->file) ;
break ;
} ;
if (ftell (psf->file) >= (int) (psf->filelength - (2 * sizeof (dword))))
break ;
} ; /* while (1) */
if (! psf->dataoffset)
return SFE_WAV_NO_DATA ;
psf->current = 0 ;
psf->endian = SF_ENDIAN_LITTLE ; /* All WAV files are little endian. */
psf->sf.sections = 1 ;
fseek (psf->file, psf->dataoffset, SEEK_SET) ;
psf->close = (func_close) wav_close ;
if (psf->blockwidth)
{ if (psf->filelength - psf->dataoffset < psf->datalength)
psf->sf.samples = (psf->filelength - psf->dataoffset) / psf->blockwidth ;
else
psf->sf.samples = psf->datalength / psf->blockwidth ;
} ;
switch (format)
{ case WAVE_FORMAT_PCM :
case WAVE_FORMAT_EXTENSIBLE :
psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_PCM) ;
if (psf->bytewidth == 1)
psf->chars = SF_CHARS_UNSIGNED ;
if ((error = pcm_read_init (psf)))
return error ;
return 0 ;
case WAVE_FORMAT_IEEE_FLOAT :
psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_FLOAT) ;
float32_read_init (psf) ;
return 0 ;
default : return SFE_UNIMPLEMENTED ;
} ;
return 0 ;
} /* wav_open_read */
/*------------------------------------------------------------------------------
*/
int
wav_open_write (SF_PRIVATE *psf)
{ unsigned int subformat ;
int error ;
if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_WAV)
return SFE_BAD_OPEN_FORMAT ;
psf->endian = SF_ENDIAN_LITTLE ; /* All WAV files are little endian. */
psf->sf.seekable = SF_TRUE ;
psf->error = 0 ;
subformat = psf->sf.format & SF_FORMAT_SUBMASK ;
if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
psf->bytewidth = 1 ;
else
psf->bytewidth = BITWIDTH2BYTES (psf->sf.pcmbitwidth) ;
psf->blockwidth = psf->bytewidth * psf->sf.channels ;
/* Set sample count artifically high and fix later. */
psf->sf.samples = 0x7FFFFFFF / psf->blockwidth ;
psf->datalength = psf->blockwidth * psf->sf.samples ;
psf->filelength = 0x7FFFFFFF ;
/* Set standard wav_close and write_header now, may be overridden in wav_write_header. */
psf->close = (func_close) wav_close ;
psf->write_header = (func_wr_hdr) wav_write_header ;
if ((error = wav_write_header (psf)))
return error ;
return 0 ;
} /* wav_open_write */
/*------------------------------------------------------------------------------
*/
static int
wav_close (SF_PRIVATE *psf)
{
if (psf->mode == SF_MODE_WRITE)
{ /* Now we know for certain the length of the file we can
* re-write correct values for the RIFF and data chunks.
*/
fseek (psf->file, 0, SEEK_END) ;
psf->tailstart = ftell (psf->file) ;
wav_write_tailer (psf) ;
fseek (psf->file, 0, SEEK_END) ;
psf->filelength = ftell (psf->file) ;
fseek (psf->file, 0, SEEK_SET) ;
psf->datalength = psf->filelength - psf->dataoffset - (psf->filelength - psf->tailstart) ;
psf->sf.samples = psf->datalength / (psf->bytewidth * psf->sf.channels) ;
wav_write_header (psf) ;
} ;
if (psf->fdata)
free (psf->fdata) ;
psf->fdata = NULL ;
return 0 ;
} /* wav_close */
/*=========================================================================
** Private functions.
*/
static int
read_fmt_chunk (SF_PRIVATE *psf, WAV_FMT *wav_fmt)
{ unsigned int bytesread, k, structsize, bytespersec = 0 ;
memset (wav_fmt, 0, sizeof (WAV_FMT)) ;
psf_binheader_readf (psf, "l", &structsize) ;
psf_log_printf (psf, "fmt : %d\n", structsize) ;
if (structsize < 16)
return SFE_WAV_FMT_SHORT ;
if (structsize > sizeof (WAV_FMT))
return SFE_WAV_FMT_TOO_BIG ;
/* Read the minimal WAV file header here. */
bytesread =
psf_binheader_readf (psf, "wwllww", &(wav_fmt->format), &(wav_fmt->min.channels),
&(wav_fmt->min.samplerate), &(wav_fmt->min.bytespersec),
&(wav_fmt->min.blockalign), &(wav_fmt->min.bitwidth)) ;
psf_log_printf (psf, " Format : 0x%X => %s\n", wav_fmt->format, wav_format_str (wav_fmt->format)) ;
psf_log_printf (psf, " Channels : %d\n", wav_fmt->min.channels) ;
psf_log_printf (psf, " Sample Rate : %d\n", wav_fmt->min.samplerate) ;
psf_log_printf (psf, " Block Align : %d\n", wav_fmt->min.blockalign) ;
if (wav_fmt->format == WAVE_FORMAT_GSM610 && wav_fmt->min.bitwidth != 0)
psf_log_printf (psf, " Bit Width : %d (should be 0)\n", wav_fmt->min.bitwidth) ;
else
psf_log_printf (psf, " Bit Width : %d\n", wav_fmt->min.bitwidth) ;
psf->sf.samplerate = wav_fmt->min.samplerate ;
psf->sf.samples = 0 ; /* Correct this when reading data chunk. */
psf->sf.channels = wav_fmt->min.channels ;
switch (wav_fmt->format)
{ case WAVE_FORMAT_PCM :
case WAVE_FORMAT_IEEE_FLOAT :
bytespersec = wav_fmt->min.samplerate * wav_fmt->min.blockalign ;
if (wav_fmt->min.bytespersec != bytespersec)
psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->min.bytespersec, bytespersec) ;
else
psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->min.bytespersec) ;
psf->sf.pcmbitwidth = wav_fmt->min.bitwidth ;
psf->bytewidth = BITWIDTH2BYTES (wav_fmt->min.bitwidth) ;
break ;
case WAVE_FORMAT_EXTENSIBLE :
if (wav_fmt->ext.bytespersec / wav_fmt->ext.blockalign != wav_fmt->ext.samplerate)
psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->ext.bytespersec, wav_fmt->ext.samplerate * wav_fmt->ext.blockalign) ;
else
psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->ext.bytespersec) ;
bytesread +=
psf_binheader_readf (psf, "wwl", &(wav_fmt->ext.extrabytes), &(wav_fmt->ext.validbits),
&(wav_fmt->ext.channelmask)) ;
psf_log_printf (psf, " Valid Bits : %d\n", wav_fmt->ext.validbits) ;
psf_log_printf (psf, " Channel Mask : 0x%X\n", wav_fmt->ext.channelmask) ;
bytesread +=
psf_binheader_readf (psf, "lww", &(wav_fmt->ext.esf.esf_field1), &(wav_fmt->ext.esf.esf_field2),
&(wav_fmt->ext.esf.esf_field3)) ;
psf_log_printf (psf, " Subformat\n") ;
psf_log_printf (psf, " esf_field1 : 0x%X\n", wav_fmt->ext.esf.esf_field1) ;
psf_log_printf (psf, " esf_field2 : 0x%X\n", wav_fmt->ext.esf.esf_field2) ;
psf_log_printf (psf, " esf_field3 : 0x%X\n", wav_fmt->ext.esf.esf_field3) ;
psf_log_printf (psf, " esf_field4 : ") ;
for (k = 0 ; k < 8 ; k++)
{ bytesread += psf_binheader_readf (psf, "b", &(wav_fmt->ext.esf.esf_field4 [k])) ;
psf_log_printf (psf, "0x%X ", wav_fmt->ext.esf.esf_field4 [k] & 0xFF) ;
} ;
psf_log_printf (psf, "\n") ;
psf->sf.pcmbitwidth = wav_fmt->ext.bitwidth ;
psf->bytewidth = BITWIDTH2BYTES (wav_fmt->ext.bitwidth) ;
break ;
default : break ;
} ;
if (bytesread > structsize)
{ psf_log_printf (psf, "*** read_fmt_chunk (bytesread > structsize)\n") ;
return SFE_WAV_FMT_SHORT ;
}
else
fread (psf->buffer, 1, structsize - bytesread, psf->file) ;
psf->blockwidth = wav_fmt->min.channels * psf->bytewidth ;
return 0 ;
} /* read_fmt_chunk */
static int
wav_write_header (SF_PRIVATE *psf)
{ unsigned int fmt_size ;
int k, error, subformat ;
/* Reset the current header length to zero. */
psf->header [0] = 0 ;
psf->headindex = 0 ;
fseek (psf->file, 0, SEEK_SET) ;
/* RIFF marker, length, WAVE and 'fmt ' markers. */
psf_binheader_writef (psf, "mlmm", RIFF_MARKER, psf->filelength - 8, WAVE_MARKER, fmt_MARKER) ;
subformat = psf->sf.format & SF_FORMAT_SUBMASK ;
switch (subformat)
{ case SF_FORMAT_PCM :
psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_PCM) ;
if (psf->bytewidth == 1)
psf->chars = SF_CHARS_UNSIGNED ;
if ((error = pcm_write_init (psf)))
return error ;
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "lwwl", fmt_size, WAVE_FORMAT_PCM, psf->sf.channels, psf->sf.samplerate) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "l", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "ww", psf->bytewidth * psf->sf.channels, psf->sf.pcmbitwidth) ;
break ;
case SF_FORMAT_FLOAT :
psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_FLOAT) ;
/* Add the peak chunk to floating point files. */
psf->has_peak = SF_TRUE ;
psf->peak_loc = SF_PEAK_START ;
float32_write_init (psf) ;
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "lwwl", fmt_size, WAVE_FORMAT_IEEE_FLOAT, psf->sf.channels, psf->sf.samplerate) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "l", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "ww", psf->bytewidth * psf->sf.channels, psf->sf.pcmbitwidth) ;
/* Write 'fact' chunk. */
psf_binheader_writef (psf, "mll", fact_MARKER, FACT_CHUNK_SIZE, psf->sf.samples) ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
if (psf->has_peak && psf->peak_loc == SF_PEAK_START)
{ psf_binheader_writef (psf, "ml", PEAK_MARKER,
sizeof (psf->peak) - sizeof (psf->peak.peak) + psf->sf.channels * sizeof (PEAK_POS)) ;
psf_binheader_writef (psf, "ll", 1, time (NULL)) ;
for (k = 0 ; k < psf->sf.channels ; k++)
psf_binheader_writef (psf, "fl", psf->peak.peak[k].value, psf->peak.peak[k].position) ;
} ;
psf_binheader_writef (psf, "ml", data_MARKER, psf->datalength) ;
fwrite (psf->header, psf->headindex, 1, psf->file) ;
psf->dataoffset = psf->headindex ;
return 0 ;
} /* wav_write_header */
static int
wav_write_tailer (SF_PRIVATE *psf)
{ int k ;
/* Reset the current header buffer length to zero. */
psf->header [0] = 0 ;
psf->headindex = 0 ;
fseek (psf->file, 0, SEEK_END) ;
if (psf->has_peak && psf->peak_loc == SF_PEAK_END)
{ psf_binheader_writef (psf, "ml", PEAK_MARKER,
sizeof (psf->peak) - sizeof (psf->peak.peak) + psf->sf.channels * sizeof (PEAK_POS)) ;
psf_binheader_writef (psf, "ll", 1, time (NULL)) ;
for (k = 0 ; k < psf->sf.channels ; k++)
psf_binheader_writef (psf, "fl", psf->peak.peak[k].value, psf->peak.peak[k].position) ; /* XXXXX */
} ;
if (psf->headindex > 0)
fwrite (psf->header, psf->headindex, 1, psf->file) ;
return 0 ;
} /* wav_write_tailer */
static int
wav_subchunk_parse (SF_PRIVATE *psf, int chunk)
{ unsigned int dword, bytesread, length ;
bytesread = psf_binheader_readf (psf, "l", &length);
while (bytesread < length)
{ bytesread += psf_binheader_readf (psf, "m", &chunk);
switch (chunk)
{ case adtl_MARKER :
case INFO_MARKER :
/* These markers don't contain anything. */
psf_log_printf (psf, " %D\n", chunk) ;
break ;
case IART_MARKER :
case ICMT_MARKER :
case ICOP_MARKER :
case ICRD_MARKER :
case IENG_MARKER :
case INAM_MARKER :
case IPRD_MARKER :
case ISBJ_MARKER :
case ISFT_MARKER :
case ISRC_MARKER :
bytesread += psf_binheader_readf (psf, "l", &dword);
dword += (dword & 1) ;
if (dword > sizeof (psf->buffer))
{ psf_log_printf (psf, " *** %D : %d (too big)\n", chunk, dword) ;
return SFE_INTERNAL ;
} ;
bytesread += psf_binheader_readf (psf, "B", psf->buffer, dword) ;
psf->buffer [dword - 1] = 0 ;
psf_log_printf (psf, " %D : %s\n", chunk, psf->buffer) ;
break ;
case labl_MARKER :
case note_MARKER :
bytesread += psf_binheader_readf (psf, "l", &dword);
dword += (dword & 1) ;
psf_binheader_readf (psf, "j", dword) ;
bytesread += dword ;
psf_log_printf (psf, " %D : %d\n", chunk, dword) ;
break ;
default :
bytesread += psf_binheader_readf (psf, "l", &dword);
dword += (dword & 1) ;
bytesread += psf_binheader_readf (psf, "j", dword) ;
psf_log_printf (psf, " *** %D : %d\n", chunk, dword) ;
break ;
} ;
} ;
return 0 ;
} /* wav_subchunk_parse */
static char const*
wav_format_str (int k)
{ switch (k)
{ case WAVE_FORMAT_UNKNOWN :
return "WAVE_FORMAT_UNKNOWN" ;
case WAVE_FORMAT_PCM :
return "WAVE_FORMAT_PCM " ;
case WAVE_FORMAT_MS_ADPCM :
return "WAVE_FORMAT_MS_ADPCM" ;
case WAVE_FORMAT_IEEE_FLOAT :
return "WAVE_FORMAT_IEEE_FLOAT" ;
case WAVE_FORMAT_IBM_CVSD :
return "WAVE_FORMAT_IBM_CVSD" ;
case WAVE_FORMAT_ALAW :
return "WAVE_FORMAT_ALAW" ;
case WAVE_FORMAT_MULAW :
return "WAVE_FORMAT_MULAW" ;
case WAVE_FORMAT_OKI_ADPCM :
return "WAVE_FORMAT_OKI_ADPCM" ;
case WAVE_FORMAT_IMA_ADPCM :
return "WAVE_FORMAT_IMA_ADPCM" ;
case WAVE_FORMAT_MEDIASPACE_ADPCM :
return "WAVE_FORMAT_MEDIASPACE_ADPCM" ;
case WAVE_FORMAT_SIERRA_ADPCM :
return "WAVE_FORMAT_SIERRA_ADPCM" ;
case WAVE_FORMAT_G723_ADPCM :
return "WAVE_FORMAT_G723_ADPCM" ;
case WAVE_FORMAT_DIGISTD :
return "WAVE_FORMAT_DIGISTD" ;
case WAVE_FORMAT_DIGIFIX :
return "WAVE_FORMAT_DIGIFIX" ;
case WAVE_FORMAT_DIALOGIC_OKI_ADPCM :
return "WAVE_FORMAT_DIALOGIC_OKI_ADPCM" ;
case WAVE_FORMAT_MEDIAVISION_ADPCM :
return "WAVE_FORMAT_MEDIAVISION_ADPCM" ;
case WAVE_FORMAT_YAMAHA_ADPCM :
return "WAVE_FORMAT_YAMAHA_ADPCM" ;
case WAVE_FORMAT_SONARC :
return "WAVE_FORMAT_SONARC" ;
case WAVE_FORMAT_DSPGROUP_TRUESPEECH :
return "WAVE_FORMAT_DSPGROUP_TRUESPEECH " ;
case WAVE_FORMAT_ECHOSC1 :
return "WAVE_FORMAT_ECHOSC1" ;
case WAVE_FORMAT_AUDIOFILE_AF18 :
return "WAVE_FORMAT_AUDIOFILE_AF18 " ;
case WAVE_FORMAT_APTX :
return "WAVE_FORMAT_APTX" ;
case WAVE_FORMAT_AUDIOFILE_AF10 :
return "WAVE_FORMAT_AUDIOFILE_AF10 " ;
case WAVE_FORMAT_DOLBY_AC2 :
return "WAVE_FORMAT_DOLBY_AC2" ;
case WAVE_FORMAT_GSM610 :
return "WAVE_FORMAT_GSM610" ;
case WAVE_FORMAT_MSNAUDIO :
return "WAVE_FORMAT_MSNAUDIO" ;
case WAVE_FORMAT_ANTEX_ADPCME :
return "WAVE_FORMAT_ANTEX_ADPCME" ;
case WAVE_FORMAT_CONTROL_RES_VQLPC :
return "WAVE_FORMAT_CONTROL_RES_VQLPC" ;
case WAVE_FORMAT_DIGIREAL :
return "WAVE_FORMAT_DIGIREAL" ;
case WAVE_FORMAT_DIGIADPCM :
return "WAVE_FORMAT_DIGIADPCM" ;
case WAVE_FORMAT_CONTROL_RES_CR10 :
return "WAVE_FORMAT_CONTROL_RES_CR10" ;
case WAVE_FORMAT_NMS_VBXADPCM :
return "WAVE_FORMAT_NMS_VBXADPCM" ;
case WAVE_FORMAT_ROCKWELL_ADPCM :
return "WAVE_FORMAT_ROCKWELL_ADPCM" ;
case WAVE_FORMAT_ROCKWELL_DIGITALK :
return "WAVE_FORMAT_ROCKWELL_DIGITALK" ;
case WAVE_FORMAT_G721_ADPCM :
return "WAVE_FORMAT_G721_ADPCM" ;
case WAVE_FORMAT_MPEG :
return "WAVE_FORMAT_MPEG" ;
case WAVE_FORMAT_MPEGLAYER3 :
return "WAVE_FORMAT_MPEGLAYER3" ;
case IBM_FORMAT_MULAW :
return "IBM_FORMAT_MULAW" ;
case IBM_FORMAT_ALAW :
return "IBM_FORMAT_ALAW" ;
case IBM_FORMAT_ADPCM :
return "IBM_FORMAT_ADPCM" ;
case WAVE_FORMAT_CREATIVE_ADPCM :
return "WAVE_FORMAT_CREATIVE_ADPCM" ;
case WAVE_FORMAT_FM_TOWNS_SND :
return "WAVE_FORMAT_FM_TOWNS_SND" ;
case WAVE_FORMAT_OLIGSM :
return "WAVE_FORMAT_OLIGSM" ;
case WAVE_FORMAT_OLIADPCM :
return "WAVE_FORMAT_OLIADPCM" ;
case WAVE_FORMAT_OLICELP :
return "WAVE_FORMAT_OLICELP" ;
case WAVE_FORMAT_OLISBC :
return "WAVE_FORMAT_OLISBC" ;
case WAVE_FORMAT_OLIOPR :
return "WAVE_FORMAT_OLIOPR" ;
case WAVE_FORMAT_EXTENSIBLE :
return "WAVE_FORMAT_EXTENSIBLE" ;
break ;
} ;
return "Unknown format" ;
} /* wav_format_str */