src/wav.c

   1 /*
   2 ** Copyright (C) 1999-2019 Erik de Castro Lopo <erikd@mega-nerd.com>
   3 ** Copyright (C) 2004-2005 David Viens <davidv@plogue.com>
   4 **
   5 ** This program is free software; you can redistribute it and/or modify
   6 ** it under the terms of the GNU Lesser General Public License as published by
   7 ** the Free Software Foundation; either version 2.1 of the License, or
   8 ** (at your option) any later version.
   9 **
  10 ** This program is distributed in the hope that it will be useful,
  11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ** GNU Lesser General Public License for more details.
  14 **
  15 ** You should have received a copy of the GNU Lesser General Public License
  16 ** along with this program; if not, write to the Free Software
  17 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18 */
  19
  20 #include        "sfconfig.h"
  21
  22 #include        <stdio.h>
  23 #include        <stdlib.h>
  24 #include        <string.h>
  25 #include        <ctype.h>
  26 #include        <time.h>
  27 #include        <inttypes.h>
  28
  29 #include        "sndfile.h"
  30 #include        "sfendian.h"
  31 #include        "common.h"
  32 #include        "wavlike.h"
  33
  34 /*------------------------------------------------------------------------------
  35  * Macros to handle big/little endian issues.
  36  */
  37
  38 #define RIFF_MARKER             (MAKE_MARKER ('R', 'I', 'F', 'F'))
  39 #define RIFX_MARKER             (MAKE_MARKER ('R', 'I', 'F', 'X'))
  40 #define WAVE_MARKER             (MAKE_MARKER ('W', 'A', 'V', 'E'))
  41 #define fmt_MARKER              (MAKE_MARKER ('f', 'm', 't', ' '))
  42 #define fact_MARKER             (MAKE_MARKER ('f', 'a', 'c', 't'))
  43
  44 #define cue_MARKER              (MAKE_MARKER ('c', 'u', 'e', ' '))
  45 #define slnt_MARKER             (MAKE_MARKER ('s', 'l', 'n', 't'))
  46 #define wavl_MARKER             (MAKE_MARKER ('w', 'a', 'v', 'l'))
  47 #define plst_MARKER             (MAKE_MARKER ('p', 'l', 's', 't'))
  48 #define smpl_MARKER             (MAKE_MARKER ('s', 'm', 'p', 'l'))
  49 #define iXML_MARKER             (MAKE_MARKER ('i', 'X', 'M', 'L'))
  50 #define levl_MARKER             (MAKE_MARKER ('l', 'e', 'v', 'l'))
  51 #define MEXT_MARKER             (MAKE_MARKER ('M', 'E', 'X', 'T'))
  52 #define acid_MARKER             (MAKE_MARKER ('a', 'c', 'i', 'd'))
  53 #define strc_MARKER             (MAKE_MARKER ('s', 't', 'r', 'c'))
  54 #define afsp_MARKER             (MAKE_MARKER ('a', 'f', 's', 'p'))
  55 #define clm_MARKER              (MAKE_MARKER ('c', 'l', 'm', ' '))
  56 #define elmo_MARKER             (MAKE_MARKER ('e', 'l', 'm', 'o'))
  57 #define FLLR_MARKER             (MAKE_MARKER ('F', 'L', 'L', 'R'))
  58
  59 #define minf_MARKER             (MAKE_MARKER ('m', 'i', 'n', 'f'))
  60 #define elm1_MARKER             (MAKE_MARKER ('e', 'l', 'm', '1'))
  61 #define regn_MARKER             (MAKE_MARKER ('r', 'e', 'g', 'n'))
  62 #define ovwf_MARKER             (MAKE_MARKER ('o', 'v', 'w', 'f'))
  63 #define umid_MARKER             (MAKE_MARKER ('u', 'm', 'i', 'd'))
  64 #define SyLp_MARKER             (MAKE_MARKER ('S', 'y', 'L', 'p'))
  65 #define Cr8r_MARKER             (MAKE_MARKER ('C', 'r', '8', 'r'))
  66 #define JUNK_MARKER             (MAKE_MARKER ('J', 'U', 'N', 'K'))
  67 #define PMX_MARKER              (MAKE_MARKER ('_', 'P', 'M', 'X'))
  68 #define inst_MARKER             (MAKE_MARKER ('i', 'n', 's', 't'))
  69 #define AFAn_MARKER             (MAKE_MARKER ('A', 'F', 'A', 'n'))
  70
  71
  72 /* Weird WAVPACK marker which can show up at the start of the DATA section. */
  73 #define wvpk_MARKER (MAKE_MARKER ('w', 'v', 'p', 'k'))
  74 #define OggS_MARKER (MAKE_MARKER ('O', 'g', 'g', 'S'))
  75
  76 /* ID3v1 trailer which can show up at the end and erronerously look like a chunk. */
  77 #define TAG__MARKER (MAKE_MARKER ('T', 'A', 'G', 0))
  78 #define TAG__MARKER_MASK (MAKE_MARKER (0xff, 0xff, 0xff, 0))
  79
  80 #define WAVLIKE_PEAK_CHUNK_SIZE(ch)     (2 * sizeof (int) + ch * (sizeof (float) + sizeof (int)))
  81
  82
  83 enum
  84 {       HAVE_RIFF       = 1 << 0,
  85         HAVE_WAVE       = 1 << 1,
  86         HAVE_fmt        = 1 << 2,
  87         HAVE_fact       = 1 << 3,
  88         HAVE_PEAK       = 1 << 4,
  89         HAVE_data       = 1 << 5,
  90         HAVE_other      = 1 << 6
  91 } ;
  92
  93
  94 /*  known WAVEFORMATEXTENSIBLE GUIDS  */
  95 static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM =
  96 {       0x00000001, 0x0000, 0x0010, {   0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
  97 } ;
  98
  99 #if 0
 100 static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM =
 101 {       0x00000002, 0x0000, 0x0010, {   0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 102 } ;
 103 #endif
 104
 105 static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT =
 106 {       0x00000003, 0x0000, 0x0010, {   0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 107 } ;
 108
 109 static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW =
 110 {       0x00000006, 0x0000, 0x0010, {   0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 111 } ;
 112
 113 static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW =
 114 {       0x00000007, 0x0000, 0x0010, {   0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 115 } ;
 116
 117 /*
 118 ** the next two are from
 119 ** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html
 120 */
 121 static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM =
 122 {       0x00000001, 0x0721, 0x11d3, {   0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
 123 } ;
 124
 125 static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT =
 126 {       0x00000003, 0x0721, 0x11d3, {   0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
 127 } ;
 128
 129
 130 #if 0
 131 /* maybe interesting one day to read the following through sf_read_raw */
 132 /* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */
 133 static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX =
 134 {       0x8312B9C2, 0x2E6E, 0x11d4, {   0xA8, 0x24, 0xDE, 0x5B, 0x96, 0xC3, 0xAB, 0x21 }
 135 } ;
 136 #endif
 137
 138 /*------------------------------------------------------------------------------
 139 ** Private static functions.
 140 */
 141
 142 static int      wav_read_header         (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ;
 143 static int      wav_write_header        (SF_PRIVATE *psf, int calc_length) ;
 144
 145 static int      wav_write_tailer (SF_PRIVATE *psf) ;
 146 static int      wav_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
 147 static int      wav_close (SF_PRIVATE *psf) ;
 148
 149 static int      wav_read_smpl_chunk (SF_PRIVATE *psf, uint32_t chunklen) ;
 150 static int      wav_read_acid_chunk (SF_PRIVATE *psf, uint32_t chunklen) ;
 151
 152 static int wav_set_chunk (SF_PRIVATE *psf, const SF_CHUNK_INFO * chunk_info) ;
 153 static SF_CHUNK_ITERATOR * wav_next_chunk_iterator (SF_PRIVATE *psf, SF_CHUNK_ITERATOR * iterator) ;
 154 static int wav_get_chunk_size (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info) ;
 155 static int wav_get_chunk_data (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info) ;
 156
 157 /*------------------------------------------------------------------------------
 158 ** Public function.
 159 */
 160
 161 int
 162 wav_open        (SF_PRIVATE *psf)
 163 {       WAVLIKE_PRIVATE * wpriv ;
 164         int     format, subformat, error, blockalign = 0, framesperblock = 0 ;
 165
 166         if ((wpriv = calloc (1, sizeof (WAVLIKE_PRIVATE))) == NULL)
 167                 return SFE_MALLOC_FAILED ;
 168         psf->container_data = wpriv ;
 169
 170         wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
 171         psf->strings.flags = SF_STR_ALLOW_START | SF_STR_ALLOW_END ;
 172
 173         if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
 174         {       if ((error = wav_read_header (psf, &blockalign, &framesperblock)))
 175                         return error ;
 176
 177                 psf->next_chunk_iterator = wav_next_chunk_iterator ;
 178                 psf->get_chunk_size = wav_get_chunk_size ;
 179                 psf->get_chunk_data = wav_get_chunk_data ;
 180                 } ;
 181
 182         subformat = SF_CODEC (psf->sf.format) ;
 183
 184         if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
 185         {       if (psf->is_pipe)
 186                         return SFE_NO_PIPE_WRITE ;
 187
 188                 wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
 189
 190                 format = SF_CONTAINER (psf->sf.format) ;
 191                 if (format != SF_FORMAT_WAV && format != SF_FORMAT_WAVEX)
 192                         return  SFE_BAD_OPEN_FORMAT ;
 193
 194                 psf->blockwidth = psf->bytewidth * psf->sf.channels ;
 195
 196                 /* RIFF WAVs are little-endian, RIFX WAVs are big-endian, default to little */
 197                 psf->endian = SF_ENDIAN (psf->sf.format) ;
 198                 if (CPU_IS_BIG_ENDIAN && psf->endian == SF_ENDIAN_CPU)
 199                         psf->endian = SF_ENDIAN_BIG ;
 200                 else if (psf->endian != SF_ENDIAN_BIG)
 201                         psf->endian = SF_ENDIAN_LITTLE ;
 202
 203                 if (psf->file.mode != SFM_RDWR || psf->filelength < 44)
 204                 {       psf->filelength = 0 ;
 205                         psf->datalength = 0 ;
 206                         psf->dataoffset = 0 ;
 207                         psf->sf.frames = 0 ;
 208                         } ;
 209
 210 #if (ENABLE_EXPERIMENTAL_CODE == 0)
 211                 /* For now, don't support writing MPEGLAYER3 WAVs, as we can't guarentee that
 212                 ** such a file written by libsndfile would have the same length when opened again.
 213                 */
 214                 if (subformat == SF_FORMAT_MPEG_LAYER_III)
 215                         return SFE_UNSUPPORTED_ENCODING ;
 216 #endif
 217
 218                 if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM)
 219                 {       blockalign = wavlike_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
 220                         framesperblock = -1 ; /* Corrected later. */
 221                         } ;
 222
 223                 /* By default, add the peak chunk to floating point files. Default behaviour
 224                 ** can be switched off using sf_command (SFC_SET_PEAK_CHUNK, SF_FALSE).
 225                 */
 226                 if (psf->file.mode == SFM_WRITE && (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE))
 227                 {       if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
 228                                 return SFE_MALLOC_FAILED ;
 229                         psf->peak_info->peak_loc = SF_PEAK_START ;
 230                         } ;
 231
 232                 psf->write_header       = wav_write_header ;
 233                 psf->set_chunk          = wav_set_chunk ;
 234                 } ;
 235
 236         psf->container_close = wav_close ;
 237         psf->command = wav_command ;
 238
 239         switch (subformat)
 240         {       case SF_FORMAT_PCM_U8 :
 241                 case SF_FORMAT_PCM_16 :
 242                 case SF_FORMAT_PCM_24 :
 243                 case SF_FORMAT_PCM_32 :
 244                                         error = pcm_init (psf) ;
 245                                         break ;
 246
 247                 case SF_FORMAT_ULAW :
 248                                         error = ulaw_init (psf) ;
 249                                         break ;
 250
 251                 case SF_FORMAT_ALAW :
 252                                         error = alaw_init (psf) ;
 253                                         break ;
 254
 255                 /* Lite remove start */
 256                 case SF_FORMAT_FLOAT :
 257                                         error = float32_init (psf) ;
 258                                         break ;
 259
 260                 case SF_FORMAT_DOUBLE :
 261                                         error = double64_init (psf) ;
 262                                         break ;
 263
 264                 case SF_FORMAT_IMA_ADPCM :
 265                                         error = wavlike_ima_init (psf, blockalign, framesperblock) ;
 266                                         break ;
 267
 268                 case SF_FORMAT_MS_ADPCM :
 269                                         error = wavlike_msadpcm_init (psf, blockalign, framesperblock) ;
 270                                         break ;
 271
 272                 case SF_FORMAT_NMS_ADPCM_16 :
 273                 case SF_FORMAT_NMS_ADPCM_24 :
 274                 case SF_FORMAT_NMS_ADPCM_32 :
 275                                         error = nms_adpcm_init (psf) ;
 276                                         break ;
 277
 278                 /* Lite remove end */
 279
 280                 case SF_FORMAT_MPEG_LAYER_III :
 281                                         error = mpeg_init (psf, SF_BITRATE_MODE_CONSTANT, SF_FALSE) ;
 282                                         break ;
 283
 284                 default :       return SFE_UNIMPLEMENTED ;
 285                 } ;
 286
 287         if (psf->file.mode == SFM_WRITE || (psf->file.mode == SFM_RDWR && psf->filelength == 0))
 288                 return psf->write_header (psf, SF_FALSE) ;
 289
 290         return error ;
 291 } /* wav_open */
 292
 293 /*=========================================================================
 294 ** Private functions.
 295 */
 296
 297 static int
 298 wav_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock)
 299 {       WAVLIKE_PRIVATE *wpriv ;
 300         WAV_FMT         *wav_fmt ;
 301         FACT_CHUNK      fact_chunk ;
 302         uint32_t        marker, chunk_size = 0, RIFFsize = 0, done = 0 ;
 303         int                     parsestage = 0, error, format = 0 ;
 304
 305         if (psf->is_pipe == 0 && psf->filelength > 0xFFFFFFFFLL)
 306                 psf_log_printf (psf, "Warning : filelength > 0xffffffff. This is bad!!!!\n") ;
 307
 308         if ((wpriv = psf->container_data) == NULL)
 309                 return SFE_INTERNAL ;
 310         wav_fmt = &wpriv->wav_fmt ;
 311
 312         /* Set position to start of file to begin reading header. */
 313         psf_binheader_readf (psf, "pmj", 0, &marker, -4) ;
 314         psf->header.indx = 0 ;
 315
 316         /* RIFX signifies big-endian format for all header and data  to prevent
 317         ** lots of code copying here, we'll set the psf->rwf_endian flag once here,
 318         ** and never specify endian-ness for all other header ops/
 319         */
 320         psf->rwf_endian = (marker == RIFF_MARKER) ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
 321
 322         while (! done)
 323         {       size_t jump = chunk_size & 1 ;
 324
 325                 marker = chunk_size = 0 ;
 326                 psf_binheader_readf (psf, "jm4", jump, &marker, &chunk_size) ;
 327                 if (marker == 0)
 328                 {       sf_count_t pos = psf_ftell (psf) ;
 329                         psf_log_printf (psf, "Have 0 marker at position %D (0x%x).\n", pos, pos) ;
 330                         break ;
 331                         } ;
 332
 333                 psf_store_read_chunk_u32 (&psf->rchunks, marker, psf_ftell (psf), chunk_size) ;
 334
 335                 switch (marker)
 336                 {       case RIFF_MARKER :
 337                         case RIFX_MARKER :
 338                                         if (parsestage)
 339                                                 return SFE_WAV_NO_RIFF ;
 340
 341                                         parsestage |= HAVE_RIFF ;
 342
 343                                         RIFFsize = chunk_size ;
 344
 345                                         if (psf->fileoffset > 0 && psf->filelength > RIFFsize + 8)
 346                                         {       /* Set file length. */
 347                                                 psf->filelength = RIFFsize + 8 ;
 348                                                 if (marker == RIFF_MARKER)
 349                                                         psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ;
 350                                                 else
 351                                                         psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ;
 352                                                 }
 353                                         else if (psf->filelength < RIFFsize + 2 * SIGNED_SIZEOF (marker))
 354                                         {       if (marker == RIFF_MARKER)
 355                                                         psf_log_printf (psf, "RIFF : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (marker)) ;
 356                                                 else
 357                                                         psf_log_printf (psf, "RIFX : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (marker)) ;
 358
 359                                                 RIFFsize = psf->filelength - 2 * SIGNED_SIZEOF (RIFFsize) ;
 360                                                 }
 361                                         else
 362                                         {       if (marker == RIFF_MARKER)
 363                                                         psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ;
 364                                                 else
 365                                                         psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ;
 366                                         } ;
 367
 368                                         psf_binheader_readf (psf, "m", &marker) ;
 369                                         if (marker != WAVE_MARKER)
 370                                                 return SFE_WAV_NO_WAVE ;
 371                                         parsestage |= HAVE_WAVE ;
 372                                         psf_log_printf (psf, "WAVE\n") ;
 373                                         chunk_size = 0 ;
 374                                         break ;
 375
 376                         case fmt_MARKER :
 377                                         if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
 378                                                 return SFE_WAV_NO_FMT ;
 379
 380                                         /* If this file has a SECOND fmt chunk, I don't want to know about it. */
 381                                         if (parsestage & HAVE_fmt)
 382                                                 break ;
 383
 384                                         parsestage |= HAVE_fmt ;
 385
 386                                         psf_log_printf (psf, "fmt  : %d\n", chunk_size) ;
 387
 388                                         if ((error = wavlike_read_fmt_chunk (psf, chunk_size)))
 389                                                 return error ;
 390
 391                                         format = wav_fmt->format ;
 392                                         break ;
 393
 394                         case data_MARKER :
 395                                         if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
 396                                                 return SFE_WAV_NO_DATA ;
 397
 398                                         if (psf->file.mode == SFM_RDWR && (parsestage & HAVE_other) != 0)
 399                                                 return SFE_RDWR_BAD_HEADER ;
 400
 401                                         parsestage |= HAVE_data ;
 402
 403                                         psf->datalength = chunk_size ;
 404                                         if (psf->datalength & 1)
 405                                                 psf_log_printf (psf, "*** 'data' chunk should be an even number of bytes in length.\n") ;
 406
 407                                         psf->dataoffset = psf_ftell (psf) ;
 408
 409                                         if (psf->dataoffset > 0)
 410                                         {       if (chunk_size == 0 && RIFFsize == 8 && psf->filelength > 44)
 411                                                 {       psf_log_printf (psf, "*** Looks like a WAV file which wasn't closed properly. Fixing it.\n") ;
 412                                                         psf->datalength = psf->filelength - psf->dataoffset ;
 413                                                         } ;
 414
 415                                                 if (psf->datalength > psf->filelength - psf->dataoffset)
 416                                                 {       psf_log_printf (psf, "data : %D (should be %D)\n", psf->datalength, psf->filelength - psf->dataoffset) ;
 417                                                         psf->datalength = psf->filelength - psf->dataoffset ;
 418                                                         }
 419                                                 else
 420                                                         psf_log_printf (psf, "data : %D\n", psf->datalength) ;
 421
 422                                                 /* Only set dataend if there really is data at the end. */
 423                                                 if (psf->datalength + psf->dataoffset < psf->filelength)
 424                                                         psf->dataend = psf->datalength + psf->dataoffset ;
 425
 426                                                 psf->datalength += chunk_size & 1 ;
 427                                                 chunk_size = 0 ;
 428                                                 } ;
 429
 430                                         if (! psf->sf.seekable || psf->dataoffset < 0)
 431                                                 break ;
 432
 433                                         /* Seek past data and continue reading header. */
 434                                         psf_fseek (psf, psf->datalength, SEEK_CUR) ;
 435
 436                                         if (psf_ftell (psf) != psf->datalength + psf->dataoffset)
 437                                                 psf_log_printf (psf, "*** psf_fseek past end error ***\n") ;
 438                                         break ;
 439
 440                         case fact_MARKER :
 441                                         if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
 442                                                 return SFE_WAV_BAD_FACT ;
 443
 444                                         parsestage |= HAVE_fact ;
 445
 446                                         if ((parsestage & HAVE_fmt) != HAVE_fmt)
 447                                                 psf_log_printf (psf, "*** Should have 'fmt ' chunk before 'fact'\n") ;
 448
 449                                         psf_binheader_readf (psf, "4", & (fact_chunk.frames)) ;
 450
 451                                         if (chunk_size > SIGNED_SIZEOF (fact_chunk))
 452                                                 psf_binheader_readf (psf, "j", (int) (chunk_size - SIGNED_SIZEOF (fact_chunk))) ;
 453
 454                                         if (chunk_size)
 455                                                 psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
 456                                         else
 457                                                 psf_log_printf (psf, "%M : %u (should not be zero)\n", marker, chunk_size) ;
 458
 459                                         psf_log_printf (psf, "  frames  : %d\n", fact_chunk.frames) ;
 460                                         break ;
 461
 462                         case PEAK_MARKER :
 463                                         if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
 464                                                 return SFE_WAV_PEAK_B4_FMT ;
 465
 466                                         parsestage |= HAVE_PEAK ;
 467
 468                                         psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
 469                                         if ((error = wavlike_read_peak_chunk (psf, chunk_size)) != 0)
 470                                                 return error ;
 471                                         psf->peak_info->peak_loc = ((parsestage & HAVE_data) == 0) ? SF_PEAK_START : SF_PEAK_END ;
 472                                         break ;
 473
 474                         case cue_MARKER :
 475                                         parsestage |= HAVE_other ;
 476
 477                                         {       uint32_t thisread, bytesread, cue_count, position, offset ;
 478                                                 int id, chunk_id, chunk_start, block_start, cue_index ;
 479
 480                                                 bytesread = psf_binheader_readf (psf, "4", &cue_count) ;
 481                                                 psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
 482
 483                                                 if (cue_count > 2500) /* 2500 is close to the largest number of cues possible because of block sizes */
 484                                                 {       psf_log_printf (psf, "  Count : %u (skipping)\n", cue_count) ;
 485                                                         psf_binheader_readf (psf, "j", chunk_size - bytesread) ;
 486                                                         break ;
 487                                                         } ;
 488
 489                                                 psf_log_printf (psf, "  Count : %d\n", cue_count) ;
 490
 491                                                 if (psf->cues)
 492                                                 {       free (psf->cues) ;
 493                                                         psf->cues = NULL ;
 494                                                         } ;
 495
 496                                                 if ((psf->cues = psf_cues_alloc (cue_count)) == NULL)
 497                                                         return SFE_MALLOC_FAILED ;
 498
 499                                                 cue_index = 0 ;
 500
 501                                                 while (cue_count)
 502                                                 {
 503                                                         if ((thisread = psf_binheader_readf (psf, "e44m444", &id, &position, &chunk_id, &chunk_start, &block_start, &offset)) == 0)
 504                                                                 break ;
 505                                                         bytesread += thisread ;
 506
 507                                                         if (cue_index < 10) /* avoid swamping log buffer with cues */
 508                                                                 psf_log_printf (psf,    "   Cue ID : %2d"
 509                                                                                         "  Pos : %5u  Chunk : %M"
 510                                                                                         "  Chk Start : %d  Blk Start : %d"
 511                                                                                         "  Offset : %5d\n",
 512                                                                                 id, position, chunk_id, chunk_start, block_start, offset) ;
 513                                                         else if (cue_index == 10)
 514                                                                 psf_log_printf (psf,    "   (Skipping)\n") ;
 515
 516                                                         psf->cues->cue_points [cue_index].indx = id ;
 517                                                         psf->cues->cue_points [cue_index].position = position ;
 518                                                         psf->cues->cue_points [cue_index].fcc_chunk = chunk_id ;
 519                                                         psf->cues->cue_points [cue_index].chunk_start = chunk_start ;
 520                                                         psf->cues->cue_points [cue_index].block_start = block_start ;
 521                                                         psf->cues->cue_points [cue_index].sample_offset = offset ;
 522                                                         psf->cues->cue_points [cue_index].name [0] = '\0' ;
 523                                                         cue_count -- ;
 524                                                         cue_index ++ ;
 525                                                         } ;
 526
 527                                                 if (bytesread != chunk_size)
 528                                                 {       psf_log_printf (psf, "**** Chunk size weirdness (%d != %d)\n", chunk_size, bytesread) ;
 529                                                         psf_binheader_readf (psf, "j", chunk_size - bytesread) ;
 530                                                         } ;
 531                                                 } ;
 532                                         break ;
 533
 534                         case smpl_MARKER :
 535                                         parsestage |= HAVE_other ;
 536
 537                                         psf_log_printf (psf, "smpl : %u\n", chunk_size) ;
 538
 539                                         if ((error = wav_read_smpl_chunk (psf, chunk_size)))
 540                                                 return error ;
 541                                         break ;
 542
 543                         case acid_MARKER :
 544                                         parsestage |= HAVE_other ;
 545
 546                                         psf_log_printf (psf, "acid : %u\n", chunk_size) ;
 547
 548                                         if ((error = wav_read_acid_chunk (psf, chunk_size)))
 549                                                 return error ;
 550                                         break ;
 551
 552                         case INFO_MARKER :
 553                         case LIST_MARKER :
 554                                         parsestage |= HAVE_other ;
 555
 556                                         if ((error = wavlike_subchunk_parse (psf, marker, chunk_size)) != 0)
 557                                                 return error ;
 558                                         break ;
 559
 560                         case bext_MARKER :
 561                                         /*
 562                                         The 'bext' chunk can actually be updated, so don't need to set this.
 563                                         parsestage |= HAVE_other ;
 564                                         */
 565                                         if ((error = wavlike_read_bext_chunk (psf, chunk_size)))
 566                                                 return error ;
 567                                         break ;
 568
 569                         case PAD_MARKER :
 570                                         /*
 571                                         We can eat into a 'PAD ' chunk if we need to.
 572                                         parsestage |= HAVE_other ;
 573                                         */
 574                                         psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
 575                                         psf_binheader_readf (psf, "j", chunk_size) ;
 576                                         break ;
 577
 578                         case cart_MARKER:
 579                                         if ((error = wavlike_read_cart_chunk (psf, chunk_size)))
 580                                                 return error ;
 581                                         break ;
 582
 583                         case iXML_MARKER : /* See http://en.wikipedia.org/wiki/IXML */
 584                         case strc_MARKER : /* Multiple of 32 bytes. */
 585                         case afsp_MARKER :
 586                         case clm_MARKER :
 587                         case elmo_MARKER :
 588                         case levl_MARKER :
 589                         case plst_MARKER :
 590                         case minf_MARKER :
 591                         case elm1_MARKER :
 592                         case regn_MARKER :
 593                         case ovwf_MARKER :
 594                         case inst_MARKER :
 595                         case AFAn_MARKER :
 596                         case umid_MARKER :
 597                         case SyLp_MARKER :
 598                         case Cr8r_MARKER :
 599                         case JUNK_MARKER :
 600                         case PMX_MARKER :
 601                         case DISP_MARKER :
 602                         case MEXT_MARKER :
 603                         case FLLR_MARKER :
 604                                         psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
 605                                         psf_binheader_readf (psf, "j", chunk_size) ;
 606                                         break ;
 607
 608                         default :
 609                                         if (chunk_size >= 0xffff0000)
 610                                         {       done = SF_TRUE ;
 611                                                 psf_log_printf (psf, "*** Unknown chunk marker (%X) at position %D with length %u. Exiting parser.\n", marker, psf_ftell (psf) - 8, chunk_size) ;
 612                                                 break ;
 613                                                 } ;
 614
 615                                         if ((marker & TAG__MARKER_MASK) == TAG__MARKER &&
 616                                                 psf_ftell (psf) - 8 + 128 == psf->filelength)
 617                                         {       psf_log_printf (psf, "*** Hit ID3v1 trailer. Exiting parser.\n") ;
 618                                                 chunk_size = 128 ;
 619                                                 done = SF_TRUE ;
 620                                                 parsestage |= HAVE_other ;
 621                                                 break ;
 622                                                 } ;
 623
 624                                         if (psf_isprint ((marker >> 24) & 0xFF) && psf_isprint ((marker >> 16) & 0xFF)
 625                                                 && psf_isprint ((marker >> 8) & 0xFF) && psf_isprint (marker & 0xFF))
 626                                         {       psf_log_printf (psf, "*** %M : %u (unknown marker)\n", marker, chunk_size) ;
 627                                                 psf_binheader_readf (psf, "j", chunk_size) ;
 628                                                 break ;
 629                                                 } ;
 630                                         if (psf_ftell (psf) & 0x03)
 631                                         {       psf_log_printf (psf, "  Unknown chunk marker at position %D. Resynching.\n", psf_ftell (psf) - 8) ;
 632                                                 psf_binheader_readf (psf, "j", -3) ;
 633                                                 /* File is too messed up so we prevent editing in RDWR mode here. */
 634                                                 parsestage |= HAVE_other ;
 635                                                 break ;
 636                                                 } ;
 637                                         psf_log_printf (psf, "*** Unknown chunk marker (%X) at position %D. Exiting parser.\n", marker, psf_ftell (psf) - 8) ;
 638                                         done = SF_TRUE ;
 639                                         break ;
 640                         } ;     /* switch (marker) */
 641
 642                 if (chunk_size >= psf->filelength)
 643                 {       psf_log_printf (psf, "*** Chunk size %u > file length %D. Exiting parser.\n", chunk_size, psf->filelength) ;
 644                         break ;
 645                         } ;
 646
 647                 if (! psf->sf.seekable && (parsestage & HAVE_data))
 648                         break ;
 649
 650                 if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (chunk_size))
 651                 {       psf_log_printf (psf, "End\n") ;
 652                         break ;
 653                         } ;
 654                 } ; /* while (1) */
 655
 656         if (psf->dataoffset <= 0)
 657                 return SFE_WAV_NO_DATA ;
 658
 659         if (psf->sf.channels < 1)
 660                 return SFE_CHANNEL_COUNT_ZERO ;
 661
 662         if (psf->sf.channels > SF_MAX_CHANNELS)
 663                 return SFE_CHANNEL_COUNT ;
 664
 665         if (format != WAVE_FORMAT_PCM && (parsestage & HAVE_fact) == 0)
 666                 psf_log_printf (psf, "**** All non-PCM format files should have a 'fact' chunk.\n") ;
 667
 668         /* WAVs can be little or big endian */
 669         psf->endian = psf->rwf_endian ;
 670
 671         psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
 672
 673         if (psf->is_pipe == 0)
 674         {       /*
 675                 ** Check for 'wvpk' at the start of the DATA section. Not able to
 676                 ** handle this.
 677                 */
 678                 psf_binheader_readf (psf, "4", &marker) ;
 679                 if (marker == wvpk_MARKER || marker == OggS_MARKER)
 680                         return SFE_WAV_WVPK_DATA ;
 681                 } ;
 682
 683         /* Seek to start of DATA section. */
 684         psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
 685
 686         if (psf->blockwidth)
 687         {       if (psf->filelength - psf->dataoffset < psf->datalength)
 688                         psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ;
 689                 else
 690                         psf->sf.frames = psf->datalength / psf->blockwidth ;
 691                 } ;
 692
 693         switch (format)
 694         {       case WAVE_FORMAT_EXTENSIBLE :
 695                         if (psf->sf.format == (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM))
 696                         {       *blockalign = wav_fmt->msadpcm.blockalign ;
 697                                 *framesperblock = wav_fmt->msadpcm.samplesperblock ;
 698                                 } ;
 699                         break ;
 700
 701                 case WAVE_FORMAT_NMS_VBXADPCM :
 702                         switch (wav_fmt->min.bitwidth)
 703                         {       case 2 :
 704                                         psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_16 ;
 705                                         break ;
 706                                 case 3 :
 707                                         psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_24 ;
 708                                         break ;
 709                                 case 4 :
 710                                         psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_32 ;
 711                                         break ;
 712
 713                                 default :
 714                                         return SFE_UNIMPLEMENTED ;
 715                                 }
 716                                 break ;
 717
 718                 case WAVE_FORMAT_PCM :
 719                                         psf->sf.format = SF_FORMAT_WAV | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
 720                                         break ;
 721
 722                 case WAVE_FORMAT_MULAW :
 723                 case IBM_FORMAT_MULAW :
 724                                         psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ULAW) ;
 725                                         break ;
 726
 727                 case WAVE_FORMAT_ALAW :
 728                 case IBM_FORMAT_ALAW :
 729                                         psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ALAW) ;
 730                                         break ;
 731
 732                 case WAVE_FORMAT_MS_ADPCM :
 733                                         psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM) ;
 734                                         *blockalign = wav_fmt->msadpcm.blockalign ;
 735                                         *framesperblock = wav_fmt->msadpcm.samplesperblock ;
 736                                         break ;
 737
 738                 case WAVE_FORMAT_IMA_ADPCM :
 739                                         psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM) ;
 740                                         *blockalign = wav_fmt->ima.blockalign ;
 741                                         *framesperblock = wav_fmt->ima.samplesperblock ;
 742                                         break ;
 743
 744                 case WAVE_FORMAT_GSM610 :
 745                                         psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_GSM610) ;
 746                                         break ;
 747
 748                 case WAVE_FORMAT_IEEE_FLOAT :
 749                                         psf->sf.format = SF_FORMAT_WAV ;
 750                                         psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ;
 751                                         break ;
 752
 753                 case WAVE_FORMAT_G721_ADPCM :
 754                                         psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_G721_32 ;
 755                                         break ;
 756
 757                 case WAVE_FORMAT_MPEGLAYER3 :
 758                                         psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_MPEG_LAYER_III ;
 759                                         if (parsestage & HAVE_fact)
 760                                                 psf->sf.frames = fact_chunk.frames ;
 761                                         break ;
 762
 763                 default : return SFE_UNIMPLEMENTED ;
 764                 } ;
 765
 766         if (wpriv->fmt_is_broken)
 767                 wavlike_analyze (psf) ;
 768
 769         /* Only set the format endian-ness if its non-standard big-endian. */
 770         if (psf->endian == SF_ENDIAN_BIG)
 771                 psf->sf.format |= SF_ENDIAN_BIG ;
 772
 773         return 0 ;
 774 } /* wav_read_header */
 775
 776 static int
 777 wav_write_fmt_chunk (SF_PRIVATE *psf)
 778 {       int subformat, fmt_size, add_fact_chunk = 0 ;
 779
 780         subformat = SF_CODEC (psf->sf.format) ;
 781
 782         switch (subformat)
 783         {       case SF_FORMAT_PCM_U8 :
 784                 case SF_FORMAT_PCM_16 :
 785                 case SF_FORMAT_PCM_24 :
 786                 case SF_FORMAT_PCM_32 :
 787                                         fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
 788
 789                                         /* fmt : format, channels, samplerate */
 790                                         psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_PCM), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
 791                                         /*  fmt : bytespersec */
 792                                         psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
 793                                         /*  fmt : blockalign, bitwidth */
 794                                         psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
 795                                         break ;
 796
 797                 case SF_FORMAT_FLOAT :
 798                 case SF_FORMAT_DOUBLE :
 799                                         fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
 800
 801                                         /* fmt : format, channels, samplerate */
 802                                         psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_IEEE_FLOAT), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
 803                                         /*  fmt : bytespersec */
 804                                         psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
 805                                         /*  fmt : blockalign, bitwidth */
 806                                         psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
 807
 808                                         add_fact_chunk = SF_TRUE ;
 809                                         break ;
 810
 811                 case SF_FORMAT_ULAW :
 812                                         fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ;
 813
 814                                         /* fmt : format, channels, samplerate */
 815                                         psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_MULAW), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
 816                                         /*  fmt : bytespersec */
 817                                         psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
 818                                         /*  fmt : blockalign, bitwidth, extrabytes */
 819                                         psf_binheader_writef (psf, "222", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (8), BHW2 (0)) ;
 820
 821                                         add_fact_chunk = SF_TRUE ;
 822                                         break ;
 823
 824                 case SF_FORMAT_ALAW :
 825                                         fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ;
 826
 827                                         /* fmt : format, channels, samplerate */
 828                                         psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_ALAW), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
 829                                         /*  fmt : bytespersec */
 830                                         psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
 831                                         /*  fmt : blockalign, bitwidth, extrabytes */
 832                                         psf_binheader_writef (psf, "222", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (8), BHW2 (0)) ;
 833
 834                                         add_fact_chunk = SF_TRUE ;
 835                                         break ;
 836
 837                 /* Lite remove start */
 838                 case SF_FORMAT_IMA_ADPCM :
 839                                         {       int blockalign, framesperblock, bytespersec ;
 840
 841                                                 blockalign              = wavlike_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
 842                                                 framesperblock  = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ;
 843                                                 bytespersec             = (psf->sf.samplerate * blockalign) / framesperblock ;
 844
 845                                                 /* fmt chunk. */
 846                                                 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
 847
 848                                                 /* fmt : size, WAV format type, channels, samplerate, bytespersec */
 849                                                 psf_binheader_writef (psf, "42244", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_IMA_ADPCM),
 850                                                                         BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
 851
 852                                                 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
 853                                                 psf_binheader_writef (psf, "2222", BHW2 (blockalign), BHW2 (4), BHW2 (2), BHW2 (framesperblock)) ;
 854                                                 } ;
 855
 856                                         add_fact_chunk = SF_TRUE ;
 857                                         break ;
 858
 859                 case SF_FORMAT_MS_ADPCM :
 860                                         {       int     blockalign, framesperblock, bytespersec, extrabytes ;
 861
 862                                                 blockalign              = wavlike_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
 863                                                 framesperblock  = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ;
 864                                                 bytespersec             = (psf->sf.samplerate * blockalign) / framesperblock ;
 865
 866                                                 /* fmt chunk. */
 867                                                 extrabytes      = 2 + 2 + WAVLIKE_MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ;
 868                                                 fmt_size        = 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ;
 869
 870                                                 /* fmt : size, WAV format type, channels. */
 871                                                 psf_binheader_writef (psf, "422", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_MS_ADPCM), BHW2 (psf->sf.channels)) ;
 872
 873                                                 /* fmt : samplerate, bytespersec. */
 874                                                 psf_binheader_writef (psf, "44", BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
 875
 876                                                 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
 877                                                 psf_binheader_writef (psf, "22222", BHW2 (blockalign), BHW2 (4), BHW2 (extrabytes), BHW2 (framesperblock), BHW2 (7)) ;
 878
 879                                                 wavlike_msadpcm_write_adapt_coeffs (psf) ;
 880                                                 } ;
 881
 882                                         add_fact_chunk = SF_TRUE ;
 883                                         break ;
 884
 885
 886                 case SF_FORMAT_G721_32 :
 887                                         /* fmt chunk. */
 888                                         fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
 889
 890                                         /* fmt : size, WAV format type, channels, samplerate, bytespersec */
 891                                         psf_binheader_writef (psf, "42244", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_G721_ADPCM),
 892                                                                 BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate), BHW4 (psf->sf.samplerate * psf->sf.channels / 2)) ;
 893
 894                                         /* fmt : blockalign, bitwidth, extrabytes, auxblocksize. */
 895                                         psf_binheader_writef (psf, "2222", BHW2 (64), BHW2 (4), BHW2 (2), BHW2 (0)) ;
 896
 897                                         add_fact_chunk = SF_TRUE ;
 898                                         break ;
 899
 900                 case SF_FORMAT_NMS_ADPCM_16 :
 901                 case SF_FORMAT_NMS_ADPCM_24 :
 902                 case SF_FORMAT_NMS_ADPCM_32 :
 903                                         {       int bytespersec, blockalign, bitwidth ;
 904
 905                                                 bitwidth        = subformat == SF_FORMAT_NMS_ADPCM_16 ? 2 : subformat == SF_FORMAT_NMS_ADPCM_24 ? 3 : 4 ;
 906                                                 blockalign      = 20 * bitwidth + 2 ;
 907                                                 bytespersec     = psf->sf.samplerate * blockalign / 160 ;
 908
 909                                                 /* fmt chunk. */
 910                                                 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
 911
 912                                                 /* fmt : format, channels, samplerate */
 913                                                 psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_NMS_VBXADPCM),
 914                                                                         BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
 915                                                 /*  fmt : bytespersec, blockalign, bitwidth */
 916                                                 psf_binheader_writef (psf, "422", BHW4 (bytespersec), BHW2 (blockalign), BHW2 (bitwidth)) ;
 917
 918                                                 add_fact_chunk = SF_TRUE ;
 919                                                 break ;
 920                                                 }
 921
 922                 /* Lite remove end */
 923
 924                 case SF_FORMAT_GSM610 :
 925                                         {       int     blockalign, framesperblock, bytespersec ;
 926
 927                                                 blockalign              = WAVLIKE_GSM610_BLOCKSIZE ;
 928                                                 framesperblock  = WAVLIKE_GSM610_SAMPLES ;
 929                                                 bytespersec             = (psf->sf.samplerate * blockalign) / framesperblock ;
 930
 931                                                 /* fmt chunk. */
 932                                                 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
 933
 934                                                 /* fmt : size, WAV format type, channels. */
 935                                                 psf_binheader_writef (psf, "422", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_GSM610), BHW2 (psf->sf.channels)) ;
 936
 937                                                 /* fmt : samplerate, bytespersec. */
 938                                                 psf_binheader_writef (psf, "44", BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
 939
 940                                                 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
 941                                                 psf_binheader_writef (psf, "2222", BHW2 (blockalign), BHW2 (0), BHW2 (2), BHW2 (framesperblock)) ;
 942                                                 } ;
 943
 944                                         add_fact_chunk = SF_TRUE ;
 945                                         break ;
 946
 947 #if (ENABLE_EXPERIMENTAL_CODE == 0)
 948                 case SF_FORMAT_MPEG_LAYER_III :
 949                                         {       int bytespersec, blockalign, flags, blocksize, samplesperblock, codecdelay ;
 950
 951                                                 /* Intended to be set as the average sample rate.
 952                                                 ** TODO: Maybe re-write this on close with final average
 953                                                 ** byterate? */
 954                                                 bytespersec             = psf->byterate (psf) ;
 955
 956                                                 /* Average block size. Info only I think. */
 957                                                 blocksize               = (1152 * bytespersec) / psf->sf.samplerate ;
 958
 959                                                 /* Can be set to block size IFF the block size is
 960                                                 ** constant, set to 1 otherwise. Constant sized
 961                                                 ** MPEG block streams are uncommon (CBR @ 32kHz and
 962                                                 ** 48kHz only. Meh. */
 963                                                 blockalign              = 1 ;
 964
 965                                                 /* TODO: Only flags defined are padding-type. I /think/
 966                                                 ** Lame does ISO style padding by default, which has a
 967                                                 ** flag value of 0.
 968                                                 */
 969                                                 flags                   = 0 ;
 970
 971                                                 /* Should only vary per MPEG 1.0/2.0 vs '2.5'.
 972                                                 ** TODO: Move this out to MPEG specific place? */
 973                                                 samplesperblock = psf->sf.samplerate >= 32000 ? 1152 : 576 ;
 974
 975                                                 /* Set as 0 if unknown.
 976                                                 ** TODO: Plumb this cleanly from Lame.
 977                                                 */
 978                                                 codecdelay              = 0 ;
 979
 980                                                 /* fmt chunk. */
 981                                                 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 + 4 + 2 + 2 + 2 ;
 982
 983                                                 /* fmt : size, WAV format type, channels. */
 984                                                 psf_binheader_writef (psf, "422", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_MPEGLAYER3), BHW2 (psf->sf.channels)) ;
 985
 986                                                 /* fmt : samplerate, bytespersec. */
 987                                                 psf_binheader_writef (psf, "44", BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
 988
 989                                                 /* fmt : blockalign, bitwidth, extrabytes, id. */
 990                                                 psf_binheader_writef (psf, "2222", BHW2 (blockalign), BHW2 (0), BHW2 (12), BHW2 (1)) ;
 991
 992                                                 /* fmt : flags, blocksize, samplesperblock, codecdelay */
 993                                                 psf_binheader_writef (psf, "4222", BHW4 (flags), BHW2 (blocksize), BHW2 (samplesperblock), BHW2 (codecdelay)) ;
 994                                                 } ;
 995
 996                                         add_fact_chunk = SF_TRUE ;
 997                                         break ;
 998 #endif
 999
1000                 default :       return SFE_UNIMPLEMENTED ;
1001                 } ;
1002
1003         if (add_fact_chunk)
1004                 psf_binheader_writef (psf, "tm48", BHWm (fact_MARKER), BHW4 (4), BHW8 (psf->sf.frames)) ;
1005
1006         return 0 ;
1007 } /* wav_write_fmt_chunk */
1008
1009 static int
1010 wavex_write_fmt_chunk (SF_PRIVATE *psf)
1011 {       WAVLIKE_PRIVATE *wpriv ;
1012         int subformat, fmt_size ;
1013
1014         if ((wpriv = psf->container_data) == NULL)
1015                 return SFE_INTERNAL ;
1016
1017         subformat = SF_CODEC (psf->sf.format) ;
1018
1019         /* initial section (same for all, it appears) */
1020         switch (subformat)
1021         {       case SF_FORMAT_PCM_U8 :
1022                 case SF_FORMAT_PCM_16 :
1023                 case SF_FORMAT_PCM_24 :
1024                 case SF_FORMAT_PCM_32 :
1025                 case SF_FORMAT_FLOAT :
1026                 case SF_FORMAT_DOUBLE :
1027                 case SF_FORMAT_ULAW :
1028                 case SF_FORMAT_ALAW :
1029                         fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 + 4 + 4 + 2 + 2 + 8 ;
1030
1031                         /* fmt : format, channels, samplerate */
1032                         psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_EXTENSIBLE), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
1033                         /*  fmt : bytespersec */
1034                         psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
1035                         /*  fmt : blockalign, bitwidth */
1036                         psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
1037
1038                         /* cbSize 22 is sizeof (WAVEFORMATEXTENSIBLE) - sizeof (WAVEFORMATEX) */
1039                         psf_binheader_writef (psf, "2", BHW2 (22)) ;
1040
1041                         /* wValidBitsPerSample, for our use same as bitwidth as we use it fully */
1042                         psf_binheader_writef (psf, "2", BHW2 (psf->bytewidth * 8)) ;
1043
1044                         /* For an Ambisonic file set the channel mask to zero.
1045                         ** Otherwise use a default based on the channel count.
1046                         */
1047                         if (wpriv->wavex_ambisonic != SF_AMBISONIC_NONE)
1048                                 psf_binheader_writef (psf, "4", BHW4 (0)) ;
1049                         else if (wpriv->wavex_channelmask != 0)
1050                                 psf_binheader_writef (psf, "4", BHW4 (wpriv->wavex_channelmask)) ;
1051                         else
1052                         {       /*
1053                                 ** Ok some liberty is taken here to use the most commonly used channel masks
1054                                 ** instead of "no mapping". If you really want to use "no mapping" for 8 channels and less
1055                                 ** please don't use wavex. (otherwise we'll have to create a new SF_COMMAND)
1056                                 */
1057                                 switch (psf->sf.channels)
1058                                 {       case 1 :        /* center channel mono */
1059                                                 psf_binheader_writef (psf, "4", BHW4 (0x4)) ;
1060                                                 break ;
1061
1062                                         case 2 :        /* front left and right */
1063                                                 psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2)) ;
1064                                                 break ;
1065
1066                                         case 4 :        /* Quad */
1067                                                 psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2 | 0x10 | 0x20)) ;
1068                                                 break ;
1069
1070                                         case 6 :        /* 5.1 */
1071                                                 psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20)) ;
1072                                                 break ;
1073
1074                                         case 8 :        /* 7.1 */
1075                                                 psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20 | 0x40 | 0x80)) ;
1076                                                 break ;
1077
1078                                         default :       /* 0 when in doubt , use direct out, ie NO mapping*/
1079                                                 psf_binheader_writef (psf, "4", BHW4 (0x0)) ;
1080                                                 break ;
1081                                         } ;
1082                                 } ;
1083                         break ;
1084
1085                 case SF_FORMAT_MS_ADPCM : /* Todo, GUID exists might have different header as per wav_write_header */
1086                 default :
1087                         return SFE_UNIMPLEMENTED ;
1088                 } ;
1089
1090         /* GUID section, different for each */
1091
1092         switch (subformat)
1093         {       case SF_FORMAT_PCM_U8 :
1094                 case SF_FORMAT_PCM_16 :
1095                 case SF_FORMAT_PCM_24 :
1096                 case SF_FORMAT_PCM_32 :
1097                         wavlike_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ?
1098                                                 &MSGUID_SUBTYPE_PCM : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM) ;
1099                         break ;
1100
1101                 case SF_FORMAT_FLOAT :
1102                 case SF_FORMAT_DOUBLE :
1103                         wavlike_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ?
1104                                                 &MSGUID_SUBTYPE_IEEE_FLOAT : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT) ;
1105                         break ;
1106
1107                 case SF_FORMAT_ULAW :
1108                         wavlike_write_guid (psf, &MSGUID_SUBTYPE_MULAW) ;
1109                         break ;
1110
1111                 case SF_FORMAT_ALAW :
1112                         wavlike_write_guid (psf, &MSGUID_SUBTYPE_ALAW) ;
1113                         break ;
1114
1115 #if 0
1116                 /* This is dead code due to return in previous switch statement. */
1117                 case SF_FORMAT_MS_ADPCM : /* todo, GUID exists */
1118                         wavlike_write_guid (psf, &MSGUID_SUBTYPE_MS_ADPCM) ;
1119                         break ;
1120                         return SFE_UNIMPLEMENTED ;
1121 #endif
1122
1123                 default : return SFE_UNIMPLEMENTED ;
1124                 } ;
1125
1126         psf_binheader_writef (psf, "tm48", BHWm (fact_MARKER), BHW4 (4), BHW8 (psf->sf.frames)) ;
1127
1128         return 0 ;
1129 } /* wavex_write_fmt_chunk */
1130
1131
1132 static int
1133 wav_write_header (SF_PRIVATE *psf, int calc_length)
1134 {       sf_count_t      current ;
1135         int             error, has_data = SF_FALSE ;
1136
1137         current = psf_ftell (psf) ;
1138
1139         if (current > psf->dataoffset)
1140                 has_data = SF_TRUE ;
1141
1142         if (calc_length)
1143         {       psf->filelength = psf_get_filelen (psf) ;
1144
1145                 psf->datalength = psf->filelength - psf->dataoffset ;
1146
1147                 if (psf->dataend)
1148                         psf->datalength -= psf->filelength - psf->dataend ;
1149                 else if (psf->bytewidth > 0 && psf->sf.seekable == SF_TRUE)
1150                         psf->datalength = psf->sf.frames * psf->bytewidth * psf->sf.channels ;
1151                 } ;
1152
1153         /* Reset the current header length to zero. */
1154         psf->header.ptr [0] = 0 ;
1155         psf->header.indx = 0 ;
1156         psf_fseek (psf, 0, SEEK_SET) ;
1157
1158         /*
1159         ** RIFX signifies big-endian format for all header and data.
1160         ** To prevent lots of code copying here, we'll set the psf->rwf_endian flag
1161         ** once here, and never specify endian-ness for all other header operations.
1162         */
1163
1164         /* RIFF/RIFX marker, length, WAVE and 'fmt ' markers. */
1165
1166         if (psf->endian == SF_ENDIAN_LITTLE)
1167                 psf_binheader_writef (psf, "etm8", BHWm (RIFF_MARKER), BHW8 ((psf->filelength < 8) ? 8 : psf->filelength - 8)) ;
1168         else
1169                 psf_binheader_writef (psf, "Etm8", BHWm (RIFX_MARKER), BHW8 ((psf->filelength < 8) ? 8 : psf->filelength - 8)) ;
1170
1171         /* WAVE and 'fmt ' markers. */
1172         psf_binheader_writef (psf, "mm", BHWm (WAVE_MARKER), BHWm (fmt_MARKER)) ;
1173
1174         /* Write the 'fmt ' chunk. */
1175         switch (SF_CONTAINER (psf->sf.format))
1176         {       case SF_FORMAT_WAV :
1177                                 if ((error = wav_write_fmt_chunk (psf)) != 0)
1178                                         return error ;
1179                                 break ;
1180
1181                 case SF_FORMAT_WAVEX :
1182                                 if ((error = wavex_write_fmt_chunk (psf)) != 0)
1183                                         return error ;
1184                                 break ;
1185
1186                 default :
1187                                 return SFE_UNIMPLEMENTED ;
1188                 } ;
1189
1190         /* The LIST/INFO chunk. */
1191         if (psf->strings.flags & SF_STR_LOCATE_START)
1192                 wavlike_write_strings (psf, SF_STR_LOCATE_START) ;
1193
1194         if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_START)
1195                 wavlike_write_peak_chunk (psf) ;
1196
1197         if (psf->broadcast_16k != NULL)
1198                 wavlike_write_bext_chunk (psf) ;
1199
1200         if (psf->cart_16k != NULL)
1201                 wavlike_write_cart_chunk (psf) ;
1202
1203         if (psf->cues != NULL)
1204         {       uint32_t k ;
1205
1206                 psf_binheader_writef (psf, "em44", BHWm (cue_MARKER), BHW4 (4 + psf->cues->cue_count * 6 * 4), BHW4 (psf->cues->cue_count)) ;
1207
1208                 for (k = 0 ; k < psf->cues->cue_count ; k++)
1209                         psf_binheader_writef (psf, "e44m444", BHW4 (psf->cues->cue_points [k].indx), BHW4 (psf->cues->cue_points [k].position),
1210                                                 BHWm (psf->cues->cue_points [k].fcc_chunk), BHW4 (psf->cues->cue_points [k].chunk_start),
1211                                                 BHW4 (psf->cues->cue_points [k].block_start), BHW4 (psf->cues->cue_points [k].sample_offset)) ;
1212                 } ;
1213
1214         if (psf->instrument != NULL)
1215         {       int             tmp ;
1216                 double  dtune = (double) (0x40000000) / 25.0 ;
1217
1218                 psf_binheader_writef (psf, "m4", BHWm (smpl_MARKER), BHW4 (9 * 4 + psf->instrument->loop_count * 6 * 4)) ;
1219                 psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (0)) ; /* Manufacturer zero is everyone */
1220                 tmp = (int) (1.0e9 / psf->sf.samplerate) ; /* Sample period in nano seconds */
1221                 psf_binheader_writef (psf, "44", BHW4 (tmp), BHW4 (psf->instrument->basenote)) ;
1222                 tmp = (uint32_t) (psf->instrument->detune * dtune + 0.5) ;
1223                 psf_binheader_writef (psf, "4", BHW4 (tmp)) ;
1224                 psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (0)) ; /* SMTPE format */
1225                 psf_binheader_writef (psf, "44", BHW4 (psf->instrument->loop_count), BHW4 (0)) ;
1226
1227                 /* Make sure we don't read past the loops array end. */
1228                 if (psf->instrument->loop_count > ARRAY_LEN (psf->instrument->loops))
1229                         psf->instrument->loop_count = ARRAY_LEN (psf->instrument->loops) ;
1230
1231                 for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++)
1232                 {       int type ;
1233
1234                         type = psf->instrument->loops [tmp].mode ;
1235                         type = (type == SF_LOOP_FORWARD ? 0 : type == SF_LOOP_BACKWARD ? 2 : type == SF_LOOP_ALTERNATING ? 1 : 32) ;
1236
1237                         psf_binheader_writef (psf, "44", BHW4 (tmp), BHW4 (type)) ;
1238                         psf_binheader_writef (psf, "44", BHW4 (psf->instrument->loops [tmp].start), BHW4 (psf->instrument->loops [tmp].end - 1)) ;
1239                         psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (psf->instrument->loops [tmp].count)) ;
1240                         } ;
1241                 } ;
1242
1243         /* Write custom headers. */
1244         if (psf->wchunks.used > 0)
1245                 wavlike_write_custom_chunks (psf) ;
1246
1247         if (psf->header.indx + 16 < psf->dataoffset)
1248         {       /* Add PAD data if necessary. */
1249                 size_t k = psf->dataoffset - (psf->header.indx + 16) ;
1250                 psf_binheader_writef (psf, "m4z", BHWm (PAD_MARKER), BHW4 (k), BHWz (k)) ;
1251                 } ;
1252
1253         psf_binheader_writef (psf, "tm8", BHWm (data_MARKER), BHW8 (psf->datalength)) ;
1254         psf_fwrite (psf->header.ptr, psf->header.indx, 1, psf) ;
1255         if (psf->error)
1256                 return psf->error ;
1257
1258         if (has_data && psf->dataoffset != psf->header.indx)
1259         {       psf_log_printf (psf, "Oooops : has_data && psf->dataoffset != psf->header.indx\n") ;
1260                 return psf->error = SFE_INTERNAL ;
1261                 } ;
1262
1263         psf->dataoffset = psf->header.indx ;
1264
1265         if (! has_data)
1266                 psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
1267         else if (current > 0)
1268                 psf_fseek (psf, current, SEEK_SET) ;
1269
1270         return psf->error ;
1271 } /* wav_write_header */
1272
1273
1274 static int
1275 wav_write_tailer (SF_PRIVATE *psf)
1276 {
1277         /* Reset the current header buffer length to zero. */
1278         psf->header.ptr [0] = 0 ;
1279         psf->header.indx = 0 ;
1280
1281         if (psf->bytewidth > 0 && psf->sf.seekable == SF_TRUE)
1282         {       psf->datalength = psf->sf.frames * psf->bytewidth * psf->sf.channels ;
1283                 psf->dataend = psf->dataoffset + psf->datalength ;
1284                 } ;
1285
1286         if (psf->dataend > 0)
1287                 psf_fseek (psf, psf->dataend, SEEK_SET) ;
1288         else
1289                 psf->dataend = psf_fseek (psf, 0, SEEK_END) ;
1290
1291         if (psf->dataend & 1)
1292                 psf_binheader_writef (psf, "z", BHWz (1)) ;
1293
1294         /* Add a PEAK chunk if requested. */
1295         if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_END)
1296                 wavlike_write_peak_chunk (psf) ;
1297
1298         if (psf->strings.flags & SF_STR_LOCATE_END)
1299                 wavlike_write_strings (psf, SF_STR_LOCATE_END) ;
1300
1301         /* Write the tailer. */
1302         if (psf->header.indx > 0)
1303                 psf_fwrite (psf->header.ptr, psf->header.indx, 1, psf) ;
1304
1305         return 0 ;
1306 } /* wav_write_tailer */
1307
1308 static int
1309 wav_close (SF_PRIVATE *psf)
1310 {
1311         if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
1312         {       wav_write_tailer (psf) ;
1313
1314                 if (psf->file.mode == SFM_RDWR)
1315                 {       sf_count_t current = psf_ftell (psf) ;
1316
1317                         /*
1318                         **      If the mode is RDWR and the current position is less than the
1319                         **      filelength, truncate the file.
1320                         */
1321
1322                         if (current < psf->filelength)
1323                         {       psf_ftruncate (psf, current) ;
1324                                 psf->filelength = current ;
1325                                 } ;
1326                         } ;
1327
1328                 psf->write_header (psf, SF_TRUE) ;
1329                 } ;
1330
1331         return 0 ;
1332 } /* wav_close */
1333
1334 static int
1335 wav_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize)
1336 {       WAVLIKE_PRIVATE *wpriv ;
1337
1338         if ((wpriv = psf->container_data) == NULL)
1339                 return SFE_INTERNAL ;
1340
1341         switch (command)
1342         {       case SFC_WAVEX_SET_AMBISONIC :
1343                         if ((SF_CONTAINER (psf->sf.format)) == SF_FORMAT_WAVEX)
1344                         {       if (datasize == SF_AMBISONIC_NONE)
1345                                         wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
1346                                 else if (datasize == SF_AMBISONIC_B_FORMAT)
1347                                         wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ;
1348                                 else
1349                                         return 0 ;
1350                                 } ;
1351                         return wpriv->wavex_ambisonic ;
1352
1353                 case SFC_WAVEX_GET_AMBISONIC :
1354                         return wpriv->wavex_ambisonic ;
1355
1356                 case SFC_SET_CHANNEL_MAP_INFO :
1357                         wpriv->wavex_channelmask = wavlike_gen_channel_mask (psf->channel_map, psf->sf.channels) ;
1358                         return (wpriv->wavex_channelmask != 0) ;
1359
1360                 default :
1361                         break ;
1362         } ;
1363
1364         return 0 ;
1365 } /* wav_command */
1366
1367 static int
1368 wav_read_smpl_chunk (SF_PRIVATE *psf, uint32_t chunklen)
1369 {       char buffer [512] ;
1370         uint32_t thisread, bytesread = 0, dword, sampler_data, loop_count, actually_loop_count = 0 ;
1371         uint32_t note, pitch, start, end, type = -1, count ;
1372         int j, k ;
1373
1374         chunklen += (chunklen & 1) ;
1375
1376         bytesread += psf_binheader_readf (psf, "4", &dword) ;
1377         psf_log_printf (psf, "  Manufacturer : %X\n", dword) ;
1378
1379         bytesread += psf_binheader_readf (psf, "4", &dword) ;
1380         psf_log_printf (psf, "  Product      : %u\n", dword) ;
1381
1382         bytesread += psf_binheader_readf (psf, "4", &dword) ;
1383         psf_log_printf (psf, "  Period       : %u nsec\n", dword) ;
1384
1385         bytesread += psf_binheader_readf (psf, "4", &note) ;
1386         psf_log_printf (psf, "  Midi Note    : %u\n", note) ;
1387
1388         bytesread += psf_binheader_readf (psf, "4", &pitch) ;
1389         if (pitch != 0)
1390         {       snprintf (buffer, sizeof (buffer), "%f",
1391                                         (1.0 * 0x80000000) / ((uint32_t) pitch)) ;
1392                 psf_log_printf (psf, "  Pitch Fract. : %s\n", buffer) ;
1393                 }
1394         else
1395                 psf_log_printf (psf, "  Pitch Fract. : 0\n") ;
1396
1397         bytesread += psf_binheader_readf (psf, "4", &dword) ;
1398         psf_log_printf (psf, "  SMPTE Format : %u\n", dword) ;
1399
1400         bytesread += psf_binheader_readf (psf, "4", &dword) ;
1401         snprintf (buffer, sizeof (buffer), "%02"PRIu32 ":%02"PRIu32 ":%02"PRIu32
1402                                 " %02"PRIu32 "", (dword >> 24) & 0x7F, (dword >> 16) & 0x7F,
1403                                 (dword >> 8) & 0x7F, dword & 0x7F) ;
1404         psf_log_printf (psf, "  SMPTE Offset : %s\n", buffer) ;
1405
1406         bytesread += psf_binheader_readf (psf, "4", &loop_count) ;
1407         psf_log_printf (psf, "  Loop Count   : %u\n", loop_count) ;
1408
1409         if (loop_count == 0 && chunklen == bytesread)
1410                 return 0 ;
1411
1412         /* Sampler Data holds the number of data bytes after the CUE chunks which
1413         ** is not actually CUE data. Display value after CUE data.
1414         */
1415         bytesread += psf_binheader_readf (psf, "4", &sampler_data) ;
1416
1417         if (psf->instrument)
1418         {       psf_log_printf (psf, "  Found more than one SMPL chunk, using last one.\n") ;
1419                 free (psf->instrument) ;
1420                 psf->instrument = NULL ;
1421                 } ;
1422         if ((psf->instrument = psf_instrument_alloc ()) == NULL)
1423                 return SFE_MALLOC_FAILED ;
1424
1425         psf->instrument->loop_count = loop_count ;
1426
1427         for (j = 0 ; loop_count > 0 && chunklen - bytesread >= 24 ; j ++)
1428         {       if ((thisread = psf_binheader_readf (psf, "4", &dword)) == 0)
1429                         break ;
1430                 bytesread += thisread ;
1431                 psf_log_printf (psf, "    Cue ID : %2u", dword) ;
1432
1433                 bytesread += psf_binheader_readf (psf, "4", &type) ;
1434                 psf_log_printf (psf, "  Type : %2u", type) ;
1435
1436                 bytesread += psf_binheader_readf (psf, "4", &start) ;
1437                 psf_log_printf (psf, "  Start : %5u", start) ;
1438
1439                 bytesread += psf_binheader_readf (psf, "4", &end) ;
1440                 psf_log_printf (psf, "  End : %5u", end) ;
1441
1442                 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1443                 psf_log_printf (psf, "  Fraction : %5u", dword) ;
1444
1445                 bytesread += psf_binheader_readf (psf, "4", &count) ;
1446                 psf_log_printf (psf, "  Count : %5u\n", count) ;
1447
1448                 if (j < ARRAY_LEN (psf->instrument->loops))
1449                 {       psf->instrument->loops [j].start = start ;
1450                         psf->instrument->loops [j].end = end + 1 ;
1451                         psf->instrument->loops [j].count = count ;
1452
1453                         switch (type)
1454                         {       case 0 :
1455                                         psf->instrument->loops [j].mode = SF_LOOP_FORWARD ;
1456                                         break ;
1457                                 case 1 :
1458                                         psf->instrument->loops [j].mode = SF_LOOP_ALTERNATING ;
1459                                         break ;
1460                                 case 2 :
1461                                         psf->instrument->loops [j].mode = SF_LOOP_BACKWARD ;
1462                                         break ;
1463                                 default:
1464                                         psf->instrument->loops [j].mode = SF_LOOP_NONE ;
1465                                         break ;
1466                                 } ;
1467                         } ;
1468                 actually_loop_count ++ ;
1469                 } ;
1470
1471         if (actually_loop_count > ARRAY_LEN (psf->instrument->loops))
1472         {
1473                 psf_log_printf (psf, "*** Warning, actual Loop Points count exceeds %u, changing Loop Count from %u to %u\n", ARRAY_LEN (psf->instrument->loops), loop_count, ARRAY_LEN (psf->instrument->loops)) ;
1474                 psf->instrument->loop_count = ARRAY_LEN (psf->instrument->loops) ;
1475                 }
1476         else if (loop_count != actually_loop_count)
1477         {       psf_log_printf (psf, "*** Warning, actual Loop Points count != Loop Count, changing Loop Count from %u to %u\n", loop_count, actually_loop_count) ;
1478                 psf->instrument->loop_count = actually_loop_count ;
1479                 } ;
1480
1481         if (chunklen - bytesread == 0)
1482         {       if (sampler_data != 0)
1483                         psf_log_printf (psf, "  Sampler Data : %u (should be 0)\n", sampler_data) ;
1484                 else
1485                         psf_log_printf (psf, "  Sampler Data : %u\n", sampler_data) ;
1486                 }
1487         else
1488         {       if (sampler_data != chunklen - bytesread)
1489                 {       psf_log_printf (psf, "  Sampler Data : %u (should have been %u)\n", sampler_data, chunklen - bytesread) ;
1490                         sampler_data = chunklen - bytesread ;
1491                         }
1492                 else
1493                         psf_log_printf (psf, "  Sampler Data : %u\n", sampler_data) ;
1494
1495                 psf_log_printf (psf, "      ") ;
1496                 for (k = 0 ; k < (int) sampler_data ; k++)
1497                 {       char ch ;
1498
1499                         if (k > 0 && (k % 20) == 0)
1500                                 psf_log_printf (psf, "\n      ") ;
1501
1502                         if ((thisread = psf_binheader_readf (psf, "1", &ch)) == 0)
1503                                 break ;
1504                         bytesread += thisread ;
1505                         psf_log_printf (psf, "%02X ", ch & 0xFF) ;
1506                         } ;
1507
1508                 psf_log_printf (psf, "\n") ;
1509                 } ;
1510
1511         psf->instrument->basenote = note ;
1512         psf->instrument->detune = (int8_t) (pitch / (0x40000000 / 25.0) + 0.5) ;
1513         psf->instrument->gain = 1 ;
1514         psf->instrument->velocity_lo = psf->instrument->key_lo = 0 ;
1515         psf->instrument->velocity_hi = psf->instrument->key_hi = 127 ;
1516
1517         return 0 ;
1518 } /* wav_read_smpl_chunk */
1519
1520 /*
1521 ** The acid chunk goes a little something like this:
1522 **
1523 ** 4 bytes          'acid'
1524 ** 4 bytes (int)     length of chunk starting at next byte
1525 **
1526 ** 4 bytes (int)     type of file:
1527 **        this appears to be a bit mask,however some combinations
1528 **        are probably impossible and/or qualified as "errors"
1529 **
1530 **        0x01 On: One Shot         Off: Loop
1531 **        0x02 On: Root note is Set Off: No root
1532 **        0x04 On: Stretch is On,   Off: Strech is OFF
1533 **        0x08 On: Disk Based       Off: Ram based
1534 **        0x10 On: ??????????       Off: ????????? (Acidizer puts that ON)
1535 **
1536 ** 2 bytes (short)      root note
1537 **        if type 0x10 is OFF : [C,C#,(...),B] -> [0x30 to 0x3B]
1538 **        if type 0x10 is ON  : [C,C#,(...),B] -> [0x3C to 0x47]
1539 **         (both types fit on same MIDI pitch albeit different octaves, so who cares)
1540 **
1541 ** 2 bytes (short)      ??? always set to 0x8000
1542 ** 4 bytes (float)      ??? seems to be always 0
1543 ** 4 bytes (int)        number of beats
1544 ** 2 bytes (short)      meter denominator   //always 4 in SF/ACID
1545 ** 2 bytes (short)      meter numerator     //always 4 in SF/ACID
1546 **                      //are we sure about the order?? usually its num/denom
1547 ** 4 bytes (float)      tempo
1548 **
1549 */
1550
1551 static int
1552 wav_read_acid_chunk (SF_PRIVATE *psf, uint32_t chunklen)
1553 {       char buffer [512] ;
1554         uint32_t bytesread = 0 ;
1555         int     beats, flags ;
1556         short rootnote, q1, meter_denom, meter_numer ;
1557         float q2, tempo ;
1558
1559         chunklen += (chunklen & 1) ;
1560
1561         bytesread += psf_binheader_readf (psf, "422f", &flags, &rootnote, &q1, &q2) ;
1562
1563         snprintf (buffer, sizeof (buffer), "%f", q2) ;
1564
1565         psf_log_printf (psf, "  Flags     : 0x%04x (%s,%s,%s,%s,%s)\n", flags,
1566                         (flags & 0x01) ? "OneShot" : "Loop",
1567                         (flags & 0x02) ? "RootNoteValid" : "RootNoteInvalid",
1568                         (flags & 0x04) ? "StretchOn" : "StretchOff",
1569                         (flags & 0x08) ? "DiskBased" : "RAMBased",
1570                         (flags & 0x10) ? "??On" : "??Off") ;
1571
1572         psf_log_printf (psf, "  Root note : 0x%x\n  ????      : 0x%04x\n  ????      : %s\n",
1573                                 rootnote, q1, buffer) ;
1574
1575         bytesread += psf_binheader_readf (psf, "422f", &beats, &meter_denom, &meter_numer, &tempo) ;
1576         snprintf (buffer, sizeof (buffer), "%f", tempo) ;
1577         psf_log_printf (psf, "  Beats     : %d\n  Meter     : %d/%d\n  Tempo     : %s\n",
1578                                 beats, meter_numer, meter_denom, buffer) ;
1579
1580         psf_binheader_readf (psf, "j", chunklen - bytesread) ;
1581
1582         if (psf->loop_info)
1583         {       psf_log_printf (psf, "  Found existing loop info, using last one.\n") ;
1584                 free (psf->loop_info) ;
1585                 psf->loop_info = NULL ;
1586                 } ;
1587         if ((psf->loop_info = calloc (1, sizeof (SF_LOOP_INFO))) == NULL)
1588                 return SFE_MALLOC_FAILED ;
1589
1590         psf->loop_info->time_sig_num    = meter_numer ;
1591         psf->loop_info->time_sig_den    = meter_denom ;
1592         psf->loop_info->loop_mode               = (flags & 0x01) ? SF_LOOP_NONE : SF_LOOP_FORWARD ;
1593         psf->loop_info->num_beats               = beats ;
1594         psf->loop_info->bpm                             = tempo ;
1595         psf->loop_info->root_key                = (flags & 0x02) ? rootnote : -1 ;
1596
1597         return 0 ;
1598 } /* wav_read_acid_chunk */
1599
1600 /*==============================================================================
1601 */
1602
1603 static int
1604 wav_set_chunk (SF_PRIVATE *psf, const SF_CHUNK_INFO * chunk_info)
1605 {       return psf_save_write_chunk (&psf->wchunks, chunk_info) ;
1606 } /* wav_set_chunk */
1607
1608 static SF_CHUNK_ITERATOR *
1609 wav_next_chunk_iterator (SF_PRIVATE *psf, SF_CHUNK_ITERATOR * iterator)
1610 {       return psf_next_chunk_iterator (&psf->rchunks, iterator) ;
1611 } /* wav_next_chunk_iterator */
1612
1613 static int
1614 wav_get_chunk_size (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info)
1615 {       int indx ;
1616
1617         if ((indx = psf_find_read_chunk_iterator (&psf->rchunks, iterator)) < 0)
1618                 return SFE_UNKNOWN_CHUNK ;
1619
1620         chunk_info->datalen = psf->rchunks.chunks [indx].len ;
1621
1622         return SFE_NO_ERROR ;
1623 } /* wav_get_chunk_size */
1624
1625 static int
1626 wav_get_chunk_data (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info)
1627 {       int indx ;
1628         sf_count_t pos ;
1629
1630         if ((indx = psf_find_read_chunk_iterator (&psf->rchunks, iterator)) < 0)
1631                 return SFE_UNKNOWN_CHUNK ;
1632
1633         if (chunk_info->data == NULL)
1634                 return SFE_BAD_CHUNK_DATA_PTR ;
1635
1636         chunk_info->id_size = psf->rchunks.chunks [indx].id_size ;
1637         memcpy (chunk_info->id, psf->rchunks.chunks [indx].id, sizeof (chunk_info->id) / sizeof (*chunk_info->id)) ;
1638
1639         pos = psf_ftell (psf) ;
1640         psf_fseek (psf, psf->rchunks.chunks [indx].offset, SEEK_SET) ;
1641         psf_fread (chunk_info->data, SF_MIN (chunk_info->datalen, psf->rchunks.chunks [indx].len), 1, psf) ;
1642         psf_fseek (psf, pos, SEEK_SET) ;
1643
1644         return SFE_NO_ERROR ;
1645 } /* wav_get_chunk_data */