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freeswitch/libs/libsndfile/src/wav_w64.c

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/*
** Copyright (C) 1999-2012 Erik de Castro Lopo <erikd@mega-nerd.com>
** Copyright (C) 2004-2005 David Viens <davidv@plogue.com>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU Lesser General Public License as published by
** the Free Software Foundation; either version 2.1 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "sfconfig.h"
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include "sndfile.h"
#include "sfendian.h"
#include "common.h"
#include "wav_w64.h"
/* Known WAVEFORMATEXTENSIBLE GUIDS. */
static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM =
{ 0x00000001, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM =
{ 0x00000002, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT =
{ 0x00000003, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW =
{ 0x00000006, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW =
{ 0x00000007, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
/*
** the next two are from
** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html
*/
static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM =
{ 0x00000001, 0x0721, 0x11d3, { 0x86, 0x44, 0xc8, 0xc1, 0xca, 0x00, 0x00, 0x00 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT =
{ 0x00000003, 0x0721, 0x11d3, { 0x86, 0x44, 0xc8, 0xc1, 0xca, 0x00, 0x00, 0x00 }
} ;
#if 0
/* maybe interesting one day to read the following through sf_read_raw */
/* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */
static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX =
{ 0x8312b9c2, 0x2e6e, 0x11d4, { 0xa8, 0x24, 0xde, 0x5b, 0x96, 0xc3, 0xab, 0x21 }
} ;
#endif
/* This stores which bit in dwChannelMask maps to which channel */
static const struct chanmap_s
{ int id ;
const char * name ;
} channel_mask_bits [] =
{ /* WAVEFORMATEXTENSIBLE doesn't distuingish FRONT_LEFT from LEFT */
{ SF_CHANNEL_MAP_LEFT, "L" },
{ SF_CHANNEL_MAP_RIGHT, "R" },
{ SF_CHANNEL_MAP_CENTER, "C" },
{ SF_CHANNEL_MAP_LFE, "LFE" },
{ SF_CHANNEL_MAP_REAR_LEFT, "Ls" },
{ SF_CHANNEL_MAP_REAR_RIGHT, "Rs" },
{ SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER, "Lc" },
{ SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER, "Rc" },
{ SF_CHANNEL_MAP_REAR_CENTER, "Cs" },
{ SF_CHANNEL_MAP_SIDE_LEFT, "Sl" },
{ SF_CHANNEL_MAP_SIDE_RIGHT, "Sr" },
{ SF_CHANNEL_MAP_TOP_CENTER, "Tc" },
{ SF_CHANNEL_MAP_TOP_FRONT_LEFT, "Tfl" },
{ SF_CHANNEL_MAP_TOP_FRONT_CENTER, "Tfc" },
{ SF_CHANNEL_MAP_TOP_FRONT_RIGHT, "Tfr" },
{ SF_CHANNEL_MAP_TOP_REAR_LEFT, "Trl" },
{ SF_CHANNEL_MAP_TOP_REAR_CENTER, "Trc" },
{ SF_CHANNEL_MAP_TOP_REAR_RIGHT, "Trr" },
} ;
/*------------------------------------------------------------------------------
* Private static functions.
*/
static int
wavex_guid_equal (const EXT_SUBFORMAT * first, const EXT_SUBFORMAT * second)
{ return !memcmp (first, second, sizeof (EXT_SUBFORMAT)) ;
} /* wavex_guid_equal */
int
wav_w64_read_fmt_chunk (SF_PRIVATE *psf, int fmtsize)
{ WAV_PRIVATE * wpriv ;
WAV_FMT *wav_fmt ;
int bytesread, k, bytespersec = 0 ;
if ((wpriv = psf->container_data) == NULL)
return SFE_INTERNAL ;
wav_fmt = &wpriv->wav_fmt ;
memset (wav_fmt, 0, sizeof (WAV_FMT)) ;
if (fmtsize < 16)
return SFE_WAV_FMT_SHORT ;
/* assume psf->rwf_endian is already properly set */
/* Read the minimal WAV file header here. */
bytesread = psf_binheader_readf (psf, "224422",
&(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_w64_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) ;
if (wav_fmt->format == WAVE_FORMAT_PCM && wav_fmt->min.blockalign == 0
&& wav_fmt->min.bitwidth > 0 && wav_fmt->min.channels > 0)
{ wav_fmt->min.blockalign = wav_fmt->min.bitwidth / 8 + (wav_fmt->min.bitwidth % 8 > 0 ? 1 : 0) ;
wav_fmt->min.blockalign *= wav_fmt->min.channels ;
psf_log_printf (psf, " Block Align : 0 (should be %d)\n", wav_fmt->min.blockalign) ;
}
else
psf_log_printf (psf, " Block Align : %d\n", wav_fmt->min.blockalign) ;
if (wav_fmt->format == WAVE_FORMAT_PCM && wav_fmt->min.bitwidth == 24 &&
wav_fmt->min.blockalign == 4 * wav_fmt->min.channels)
{ psf_log_printf (psf, " Bit Width : 24\n") ;
psf_log_printf (psf, "\n"
" Ambiguous information in 'fmt ' chunk. Possibile file types:\n"
" 0) Invalid IEEE float file generated by Syntrillium's Cooledit!\n"
" 1) File generated by ALSA's arecord containing 24 bit samples in 32 bit containers.\n"
" 2) 24 bit file with incorrect Block Align value.\n"
"\n") ;
wpriv->fmt_is_broken = 1 ;
}
else if (wav_fmt->min.bitwidth == 0)
{ switch (wav_fmt->format)
{ case WAVE_FORMAT_GSM610 :
case WAVE_FORMAT_IPP_ITU_G_723_1 :
psf_log_printf (psf, " Bit Width : %d\n", wav_fmt->min.bitwidth) ;
break ;
default :
psf_log_printf (psf, " Bit Width : %d (should not be 0)\n", wav_fmt->min.bitwidth) ;
}
}
else
{ switch (wav_fmt->format)
{ case WAVE_FORMAT_GSM610 :
case WAVE_FORMAT_IPP_ITU_G_723_1 :
psf_log_printf (psf, " Bit Width : %d (should be 0)\n", wav_fmt->min.bitwidth) ;
break ;
default :
psf_log_printf (psf, " Bit Width : %d\n", wav_fmt->min.bitwidth) ;
}
} ;
psf->sf.samplerate = wav_fmt->min.samplerate ;
psf->sf.frames = 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 != (unsigned) 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->bytewidth = BITWIDTH2BYTES (wav_fmt->min.bitwidth) ;
break ;
case WAVE_FORMAT_ALAW :
case WAVE_FORMAT_MULAW :
if (wav_fmt->min.bytespersec / wav_fmt->min.blockalign != wav_fmt->min.samplerate)
psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->min.bytespersec, wav_fmt->min.samplerate * wav_fmt->min.blockalign) ;
else
psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->min.bytespersec) ;
psf->bytewidth = 1 ;
if (fmtsize >= 18)
{ bytesread += psf_binheader_readf (psf, "2", &(wav_fmt->size20.extrabytes)) ;
psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->size20.extrabytes) ;
} ;
break ;
case WAVE_FORMAT_IMA_ADPCM :
if (wav_fmt->min.bitwidth != 4)
return SFE_WAV_ADPCM_NOT4BIT ;
if (wav_fmt->min.channels < 1 || wav_fmt->min.channels > 2)
return SFE_WAV_ADPCM_CHANNELS ;
bytesread +=
psf_binheader_readf (psf, "22", &(wav_fmt->ima.extrabytes), &(wav_fmt->ima.samplesperblock)) ;
bytespersec = (wav_fmt->ima.samplerate * wav_fmt->ima.blockalign) / wav_fmt->ima.samplesperblock ;
if (wav_fmt->ima.bytespersec != (unsigned) bytespersec)
psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->ima.bytespersec, bytespersec) ;
else
psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->ima.bytespersec) ;
psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->ima.extrabytes) ;
psf_log_printf (psf, " Samples/Block : %d\n", wav_fmt->ima.samplesperblock) ;
break ;
case WAVE_FORMAT_MS_ADPCM :
if (wav_fmt->msadpcm.bitwidth != 4)
return SFE_WAV_ADPCM_NOT4BIT ;
if (wav_fmt->msadpcm.channels < 1 || wav_fmt->msadpcm.channels > 2)
return SFE_WAV_ADPCM_CHANNELS ;
bytesread +=
psf_binheader_readf (psf, "222", &(wav_fmt->msadpcm.extrabytes),
&(wav_fmt->msadpcm.samplesperblock), &(wav_fmt->msadpcm.numcoeffs)) ;
bytespersec = (wav_fmt->min.samplerate * wav_fmt->min.blockalign) / wav_fmt->msadpcm.samplesperblock ;
if (wav_fmt->min.bytespersec == (unsigned) bytespersec)
psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->min.bytespersec) ;
else if (wav_fmt->min.bytespersec == (wav_fmt->min.samplerate / wav_fmt->msadpcm.samplesperblock) * wav_fmt->min.blockalign)
psf_log_printf (psf, " Bytes/sec : %d (should be %d (MS BUG!))\n", wav_fmt->min.bytespersec, bytespersec) ;
else
psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->min.bytespersec, bytespersec) ;
psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->msadpcm.extrabytes) ;
psf_log_printf (psf, " Samples/Block : %d\n", wav_fmt->msadpcm.samplesperblock) ;
if (wav_fmt->msadpcm.numcoeffs > ARRAY_LEN (wav_fmt->msadpcm.coeffs))
{ psf_log_printf (psf, " No. of Coeffs : %d (should be <= %d)\n", wav_fmt->msadpcm.numcoeffs, ARRAY_LEN (wav_fmt->msadpcm.coeffs)) ;
wav_fmt->msadpcm.numcoeffs = ARRAY_LEN (wav_fmt->msadpcm.coeffs) ;
}
else
psf_log_printf (psf, " No. of Coeffs : %d\n", wav_fmt->msadpcm.numcoeffs) ;
psf_log_printf (psf, " Index Coeffs1 Coeffs2\n") ;
for (k = 0 ; k < wav_fmt->msadpcm.numcoeffs ; k++)
{ char buffer [128] ;
bytesread +=
psf_binheader_readf (psf, "22", &(wav_fmt->msadpcm.coeffs [k].coeff1), &(wav_fmt->msadpcm.coeffs [k].coeff2)) ;
snprintf (buffer, sizeof (buffer), " %2d %7d %7d\n", k, wav_fmt->msadpcm.coeffs [k].coeff1, wav_fmt->msadpcm.coeffs [k].coeff2) ;
psf_log_printf (psf, buffer) ;
} ;
break ;
case WAVE_FORMAT_GSM610 :
if (wav_fmt->gsm610.channels != 1 || wav_fmt->gsm610.blockalign != 65)
return SFE_WAV_GSM610_FORMAT ;
bytesread +=
psf_binheader_readf (psf, "22", &(wav_fmt->gsm610.extrabytes), &(wav_fmt->gsm610.samplesperblock)) ;
if (wav_fmt->gsm610.samplesperblock != 320)
return SFE_WAV_GSM610_FORMAT ;
bytespersec = (wav_fmt->gsm610.samplerate * wav_fmt->gsm610.blockalign) / wav_fmt->gsm610.samplesperblock ;
if (wav_fmt->gsm610.bytespersec != (unsigned) bytespersec)
psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->gsm610.bytespersec, bytespersec) ;
else
psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->gsm610.bytespersec) ;
psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->gsm610.extrabytes) ;
psf_log_printf (psf, " Samples/Block : %d\n", wav_fmt->gsm610.samplesperblock) ;
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, "224", &(wav_fmt->ext.extrabytes), &(wav_fmt->ext.validbits),
&(wav_fmt->ext.channelmask)) ;
psf_log_printf (psf, " Valid Bits : %d\n", wav_fmt->ext.validbits) ;
if (wav_fmt->ext.channelmask == 0)
psf_log_printf (psf, " Channel Mask : 0x0 (should not be zero)\n") ;
else
{ char buffer [512] ;
unsigned bit ;
wpriv->wavex_channelmask = wav_fmt->ext.channelmask ;
/* It's probably wise to ignore the channel mask if it is all zero */
free (psf->channel_map) ;
if ((psf->channel_map = calloc (psf->sf.channels, sizeof (psf->channel_map [0]))) == NULL)
return SFE_MALLOC_FAILED ;
/* Terminate the buffer we're going to append_snprintf into. */
buffer [0] = 0 ;
for (bit = k = 0 ; bit < ARRAY_LEN (channel_mask_bits) ; bit++)
{
if (wav_fmt->ext.channelmask & (1 << bit))
{ if (k > psf->sf.channels)
{ psf_log_printf (psf, "*** More channel map bits than there are channels.\n") ;
break ;
} ;
psf->channel_map [k++] = channel_mask_bits [bit].id ;
append_snprintf (buffer, sizeof (buffer), "%s, ", channel_mask_bits [bit].name) ;
} ;
} ;
/* Remove trailing ", ". */
bit = strlen (buffer) ;
buffer [--bit] = 0 ;
buffer [--bit] = 0 ;
if (k != psf->sf.channels)
{ psf_log_printf (psf, " Channel Mask : 0x%X\n", wav_fmt->ext.channelmask) ;
psf_log_printf (psf, "*** Less channel map bits than there are channels.\n") ;
}
else
psf_log_printf (psf, " Channel Mask : 0x%X (%s)\n", wav_fmt->ext.channelmask, buffer) ;
} ;
bytesread += psf_binheader_readf (psf, "422", &(wav_fmt->ext.esf.esf_field1), &(wav_fmt->ext.esf.esf_field2), &(wav_fmt->ext.esf.esf_field3)) ;
/* compare the esf_fields with each known GUID? and print? */
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, "1", &(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->bytewidth = BITWIDTH2BYTES (wav_fmt->ext.bitwidth) ;
/* Compare GUIDs for known ones. */
if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_PCM))
{ psf->sf.format = SF_FORMAT_WAVEX | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
psf_log_printf (psf, " format : pcm\n") ;
}
else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_MS_ADPCM))
{ psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM) ;
psf_log_printf (psf, " format : ms adpcm\n") ;
}
else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_IEEE_FLOAT))
{ psf->sf.format = SF_FORMAT_WAVEX | ((psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT) ;
psf_log_printf (psf, " format : IEEE float\n") ;
}
else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_ALAW))
{ psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_ALAW) ;
psf_log_printf (psf, " format : A-law\n") ;
}
else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_MULAW))
{ psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_ULAW) ;
psf_log_printf (psf, " format : u-law\n") ;
}
else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM))
{ psf->sf.format = SF_FORMAT_WAVEX | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
psf_log_printf (psf, " format : pcm (Ambisonic B)\n") ;
wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ;
}
else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT))
{ psf->sf.format = SF_FORMAT_WAVEX | ((psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT) ;
psf_log_printf (psf, " format : IEEE float (Ambisonic B)\n") ;
wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ;
}
else
return SFE_UNIMPLEMENTED ;
break ;
case WAVE_FORMAT_G721_ADPCM :
psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->g72x.bytespersec) ;
if (fmtsize >= 20)
{ bytesread += psf_binheader_readf (psf, "22", &(wav_fmt->g72x.extrabytes), &(wav_fmt->g72x.auxblocksize)) ;
if (wav_fmt->g72x.extrabytes == 0)
psf_log_printf (psf, " Extra Bytes : %d (should be 2)\n", wav_fmt->g72x.extrabytes) ;
else
psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->g72x.extrabytes) ;
psf_log_printf (psf, " Aux Blk Size : %d\n", wav_fmt->g72x.auxblocksize) ;
}
else if (fmtsize == 18)
{ bytesread += psf_binheader_readf (psf, "2", &(wav_fmt->g72x.extrabytes)) ;
psf_log_printf (psf, " Extra Bytes : %d%s\n", wav_fmt->g72x.extrabytes, wav_fmt->g72x.extrabytes != 0 ? " (should be 0)" : "") ;
}
else
psf_log_printf (psf, "*** 'fmt ' chunk should be bigger than this!\n") ;
break ;
default :
psf_log_printf (psf, "*** No 'fmt ' chunk dumper for this format!\n") ;
return SFE_WAV_BAD_FMT ;
} ;
if (bytesread > fmtsize)
{ psf_log_printf (psf, "*** wav_w64_read_fmt_chunk (bytesread > fmtsize)\n") ;
return SFE_WAV_BAD_FMT ;
}
else
psf_binheader_readf (psf, "j", fmtsize - bytesread) ;
psf->blockwidth = wav_fmt->min.channels * psf->bytewidth ;
return 0 ;
} /* wav_w64_read_fmt_chunk */
void
wavex_write_guid (SF_PRIVATE *psf, const EXT_SUBFORMAT * subformat)
{
psf_binheader_writef (psf, "422b", subformat->esf_field1,
subformat->esf_field2, subformat->esf_field3,
subformat->esf_field4, make_size_t (8)) ;
} /* wavex_write_guid */
int
wavex_gen_channel_mask (const int *chan_map, int channels)
{ int chan, mask = 0, bit = -1, last_bit = -1 ;
if (chan_map == NULL)
return 0 ;
for (chan = 0 ; chan < channels ; chan ++)
{ int k ;
for (k = bit + 1 ; k < ARRAY_LEN (channel_mask_bits) ; k++)
if (chan_map [chan] == channel_mask_bits [k].id)
{ bit = k ;
break ;
} ;
/* Check for bad sequence. */
if (bit <= last_bit)
return 0 ;
mask += 1 << bit ;
last_bit = bit ;
} ;
return mask ;
} /* wavex_gen_channel_mask */
void
wav_w64_analyze (SF_PRIVATE *psf)
{ unsigned char buffer [4096] ;
AUDIO_DETECT ad ;
int format = 0 ;
if (psf->is_pipe)
{ psf_log_printf (psf, "*** Error : Reading from a pipe. Can't analyze data section to figure out real data format.\n\n") ;
return ;
} ;
psf_log_printf (psf, "---------------------------------------------------\n"
"Format is known to be broken. Using detection code.\n") ;
/* Code goes here. */
ad.endianness = SF_ENDIAN_LITTLE ;
ad.channels = psf->sf.channels ;
psf_fseek (psf, 3 * 4 * 50, SEEK_SET) ;
while (psf_fread (buffer, 1, sizeof (buffer), psf) == sizeof (buffer))
{ format = audio_detect (psf, &ad, buffer, sizeof (buffer)) ;
if (format != 0)
break ;
} ;
/* Seek to start of DATA section. */
psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
if (format == 0)
{ psf_log_printf (psf, "wav_w64_analyze : detection failed.\n") ;
return ;
} ;
switch (format)
{ case SF_FORMAT_PCM_32 :
case SF_FORMAT_FLOAT :
psf_log_printf (psf, "wav_w64_analyze : found format : 0x%X\n", format) ;
psf->sf.format = (psf->sf.format & ~SF_FORMAT_SUBMASK) + format ;
psf->bytewidth = 4 ;
psf->blockwidth = psf->sf.channels * psf->bytewidth ;
break ;
case SF_FORMAT_PCM_24 :
psf_log_printf (psf, "wav_w64_analyze : found format : 0x%X\n", format) ;
psf->sf.format = (psf->sf.format & ~SF_FORMAT_SUBMASK) + format ;
psf->bytewidth = 3 ;
psf->blockwidth = psf->sf.channels * psf->bytewidth ;
break ;
default :
psf_log_printf (psf, "wav_w64_analyze : unhandled format : 0x%X\n", format) ;
break ;
} ;
return ;
} /* wav_w64_analyze */
/*==============================================================================
*/
typedef struct
{ int ID ;
const char *name ;
} WAV_FORMAT_DESC ;
#define STR(x) #x
#define FORMAT_TYPE(x) { x, STR (x) }
static WAV_FORMAT_DESC wave_descs [] =
{ FORMAT_TYPE (WAVE_FORMAT_PCM),
FORMAT_TYPE (WAVE_FORMAT_MS_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_IEEE_FLOAT),
FORMAT_TYPE (WAVE_FORMAT_VSELP),
FORMAT_TYPE (WAVE_FORMAT_IBM_CVSD),
FORMAT_TYPE (WAVE_FORMAT_ALAW),
FORMAT_TYPE (WAVE_FORMAT_MULAW),
FORMAT_TYPE (WAVE_FORMAT_OKI_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_IMA_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_MEDIASPACE_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_SIERRA_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_G723_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_DIGISTD),
FORMAT_TYPE (WAVE_FORMAT_DIGIFIX),
FORMAT_TYPE (WAVE_FORMAT_DIALOGIC_OKI_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_MEDIAVISION_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_CU_CODEC),
FORMAT_TYPE (WAVE_FORMAT_YAMAHA_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_SONARC),
FORMAT_TYPE (WAVE_FORMAT_DSPGROUP_TRUESPEECH),
FORMAT_TYPE (WAVE_FORMAT_ECHOSC1),
FORMAT_TYPE (WAVE_FORMAT_AUDIOFILE_AF36),
FORMAT_TYPE (WAVE_FORMAT_APTX),
FORMAT_TYPE (WAVE_FORMAT_AUDIOFILE_AF10),
FORMAT_TYPE (WAVE_FORMAT_PROSODY_1612),
FORMAT_TYPE (WAVE_FORMAT_LRC),
FORMAT_TYPE (WAVE_FORMAT_DOLBY_AC2),
FORMAT_TYPE (WAVE_FORMAT_GSM610),
FORMAT_TYPE (WAVE_FORMAT_MSNAUDIO),
FORMAT_TYPE (WAVE_FORMAT_ANTEX_ADPCME),
FORMAT_TYPE (WAVE_FORMAT_CONTROL_RES_VQLPC),
FORMAT_TYPE (WAVE_FORMAT_DIGIREAL),
FORMAT_TYPE (WAVE_FORMAT_DIGIADPCM),
FORMAT_TYPE (WAVE_FORMAT_CONTROL_RES_CR10),
FORMAT_TYPE (WAVE_FORMAT_NMS_VBXADPCM),
FORMAT_TYPE (WAVE_FORMAT_ROLAND_RDAC),
FORMAT_TYPE (WAVE_FORMAT_ECHOSC3),
FORMAT_TYPE (WAVE_FORMAT_ROCKWELL_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_ROCKWELL_DIGITALK),
FORMAT_TYPE (WAVE_FORMAT_XEBEC),
FORMAT_TYPE (WAVE_FORMAT_G721_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_G728_CELP),
FORMAT_TYPE (WAVE_FORMAT_MSG723),
FORMAT_TYPE (WAVE_FORMAT_MPEG),
FORMAT_TYPE (WAVE_FORMAT_RT24),
FORMAT_TYPE (WAVE_FORMAT_PAC),
FORMAT_TYPE (WAVE_FORMAT_MPEGLAYER3),
FORMAT_TYPE (WAVE_FORMAT_LUCENT_G723),
FORMAT_TYPE (WAVE_FORMAT_CIRRUS),
FORMAT_TYPE (WAVE_FORMAT_ESPCM),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE),
FORMAT_TYPE (WAVE_FORMAT_CANOPUS_ATRAC),
FORMAT_TYPE (WAVE_FORMAT_G726_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_G722_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_DSAT),
FORMAT_TYPE (WAVE_FORMAT_DSAT_DISPLAY),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_BYTE_ALIGNED),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC8),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC10),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC16),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC20),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT24),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT29),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT29HW),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_VR12),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_VR18),
FORMAT_TYPE (WAVE_FORMAT_VOXWARE_TQ40),
FORMAT_TYPE (WAVE_FORMAT_SOFTSOUND),
FORMAT_TYPE (WAVE_FORMAT_VOXARE_TQ60),
FORMAT_TYPE (WAVE_FORMAT_MSRT24),
FORMAT_TYPE (WAVE_FORMAT_G729A),
FORMAT_TYPE (WAVE_FORMAT_MVI_MV12),
FORMAT_TYPE (WAVE_FORMAT_DF_G726),
FORMAT_TYPE (WAVE_FORMAT_DF_GSM610),
FORMAT_TYPE (WAVE_FORMAT_ONLIVE),
FORMAT_TYPE (WAVE_FORMAT_SBC24),
FORMAT_TYPE (WAVE_FORMAT_DOLBY_AC3_SPDIF),
FORMAT_TYPE (WAVE_FORMAT_ZYXEL_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_PHILIPS_LPCBB),
FORMAT_TYPE (WAVE_FORMAT_PACKED),
FORMAT_TYPE (WAVE_FORMAT_RHETOREX_ADPCM),
FORMAT_TYPE (IBM_FORMAT_MULAW),
FORMAT_TYPE (IBM_FORMAT_ALAW),
FORMAT_TYPE (IBM_FORMAT_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_VIVO_G723),
FORMAT_TYPE (WAVE_FORMAT_VIVO_SIREN),
FORMAT_TYPE (WAVE_FORMAT_DIGITAL_G723),
FORMAT_TYPE (WAVE_FORMAT_CREATIVE_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_CREATIVE_FASTSPEECH8),
FORMAT_TYPE (WAVE_FORMAT_CREATIVE_FASTSPEECH10),
FORMAT_TYPE (WAVE_FORMAT_QUARTERDECK),
FORMAT_TYPE (WAVE_FORMAT_FM_TOWNS_SND),
FORMAT_TYPE (WAVE_FORMAT_BZV_DIGITAL),
FORMAT_TYPE (WAVE_FORMAT_VME_VMPCM),
FORMAT_TYPE (WAVE_FORMAT_OLIGSM),
FORMAT_TYPE (WAVE_FORMAT_OLIADPCM),
FORMAT_TYPE (WAVE_FORMAT_OLICELP),
FORMAT_TYPE (WAVE_FORMAT_OLISBC),
FORMAT_TYPE (WAVE_FORMAT_OLIOPR),
FORMAT_TYPE (WAVE_FORMAT_LH_CODEC),
FORMAT_TYPE (WAVE_FORMAT_NORRIS),
FORMAT_TYPE (WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS),
FORMAT_TYPE (WAVE_FORMAT_DVM),
FORMAT_TYPE (WAVE_FORMAT_INTERWAV_VSC112),
FORMAT_TYPE (WAVE_FORMAT_IPP_ITU_G_723_1),
FORMAT_TYPE (WAVE_FORMAT_EXTENSIBLE),
} ;
char const*
wav_w64_format_str (int k)
{ int lower, upper, mid ;
lower = -1 ;
upper = sizeof (wave_descs) / sizeof (WAV_FORMAT_DESC) ;
/* binary search */
if ((wave_descs [0].ID <= k) && (k <= wave_descs [upper - 1].ID))
{
while (lower + 1 < upper)
{ mid = (upper + lower) / 2 ;
if (k == wave_descs [mid].ID)
return wave_descs [mid].name ;
if (k < wave_descs [mid].ID)
upper = mid ;
else
lower = mid ;
} ;
} ;
return "Unknown format" ;
} /* wav_w64_format_str */
int
wav_w64_srate2blocksize (int srate_chan_product)
{ if (srate_chan_product < 12000)
return 256 ;
if (srate_chan_product < 23000)
return 512 ;
if (srate_chan_product < 44000)
return 1024 ;
return 2048 ;
} /* srate2blocksize */
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