Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 1 | /* |
| 2 | ** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| 3 | ** |
| 4 | ** This program is free software; you can redistribute it and/or modify |
| 5 | ** it under the terms of the GNU Lesser General Public License as published by |
| 6 | ** the Free Software Foundation; either version 2.1 of the License, or |
| 7 | ** (at your option) any later version. |
| 8 | ** |
| 9 | ** This program is distributed in the hope that it will be useful, |
| 10 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | ** GNU Lesser General Public License for more details. |
| 13 | ** |
| 14 | ** You should have received a copy of the GNU Lesser General Public License |
| 15 | ** along with this program; if not, write to the Free Software |
| 16 | ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #include "sfconfig.h" |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <fcntl.h> |
| 23 | #include <string.h> |
| 24 | #include <ctype.h> |
| 25 | #include <math.h> |
| 26 | |
| 27 | #include "sndfile.h" |
| 28 | #include "sfendian.h" |
| 29 | #include "common.h" |
| 30 | |
| 31 | /*------------------------------------------------------------------------------ |
| 32 | ** Information on how to decode and encode this file was obtained in a PDF |
| 33 | ** file which I found on http://www.wotsit.org/. |
| 34 | ** Also did a lot of testing with GNU Octave but do not have access to |
| 35 | ** Matlab (tm) and so could not test it there. |
| 36 | */ |
| 37 | |
| 38 | /*------------------------------------------------------------------------------ |
| 39 | ** Macros to handle big/little endian issues. |
| 40 | */ |
| 41 | |
| 42 | #define MATL_MARKER (MAKE_MARKER ('M', 'A', 'T', 'L')) |
| 43 | |
| 44 | #define IM_MARKER (('I' << 8) + 'M') |
| 45 | #define MI_MARKER (('M' << 8) + 'I') |
| 46 | |
| 47 | /*------------------------------------------------------------------------------ |
| 48 | ** Enums and typedefs. |
| 49 | */ |
| 50 | |
| 51 | enum |
| 52 | { MAT5_TYPE_SCHAR = 0x1, |
| 53 | MAT5_TYPE_UCHAR = 0x2, |
| 54 | MAT5_TYPE_INT16 = 0x3, |
| 55 | MAT5_TYPE_UINT16 = 0x4, |
| 56 | MAT5_TYPE_INT32 = 0x5, |
| 57 | MAT5_TYPE_UINT32 = 0x6, |
| 58 | MAT5_TYPE_FLOAT = 0x7, |
| 59 | MAT5_TYPE_DOUBLE = 0x9, |
| 60 | MAT5_TYPE_ARRAY = 0xE, |
| 61 | |
| 62 | MAT5_TYPE_COMP_USHORT = 0x00020004, |
| 63 | MAT5_TYPE_COMP_UINT = 0x00040006 |
| 64 | } ; |
| 65 | |
| 66 | typedef struct |
| 67 | { sf_count_t size ; |
| 68 | int rows, cols ; |
| 69 | char name [32] ; |
| 70 | } MAT5_MATRIX ; |
| 71 | |
| 72 | /*------------------------------------------------------------------------------ |
| 73 | ** Private static functions. |
| 74 | */ |
| 75 | |
| 76 | static int mat5_close (SF_PRIVATE *psf) ; |
| 77 | |
| 78 | static int mat5_write_header (SF_PRIVATE *psf, int calc_length) ; |
| 79 | static int mat5_read_header (SF_PRIVATE *psf) ; |
| 80 | |
| 81 | /*------------------------------------------------------------------------------ |
| 82 | ** Public function. |
| 83 | */ |
| 84 | |
| 85 | int |
| 86 | mat5_open (SF_PRIVATE *psf) |
| 87 | { int subformat, error = 0 ; |
| 88 | |
| 89 | if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) |
| 90 | { if ((error = mat5_read_header (psf))) |
| 91 | return error ; |
| 92 | } ; |
| 93 | |
| 94 | if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_MAT5) |
| 95 | return SFE_BAD_OPEN_FORMAT ; |
| 96 | |
| 97 | subformat = SF_CODEC (psf->sf.format) ; |
| 98 | |
| 99 | if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) |
| 100 | { if (psf->is_pipe) |
| 101 | return SFE_NO_PIPE_WRITE ; |
| 102 | |
| 103 | psf->endian = SF_ENDIAN (psf->sf.format) ; |
| 104 | if (CPU_IS_LITTLE_ENDIAN && (psf->endian == SF_ENDIAN_CPU || psf->endian == 0)) |
| 105 | psf->endian = SF_ENDIAN_LITTLE ; |
| 106 | else if (CPU_IS_BIG_ENDIAN && (psf->endian == SF_ENDIAN_CPU || psf->endian == 0)) |
| 107 | psf->endian = SF_ENDIAN_BIG ; |
| 108 | |
| 109 | if ((error = mat5_write_header (psf, SF_FALSE))) |
| 110 | return error ; |
| 111 | |
| 112 | psf->write_header = mat5_write_header ; |
| 113 | } ; |
| 114 | |
| 115 | psf->container_close = mat5_close ; |
| 116 | |
| 117 | psf->blockwidth = psf->bytewidth * psf->sf.channels ; |
| 118 | |
| 119 | switch (subformat) |
| 120 | { case SF_FORMAT_PCM_U8 : |
| 121 | case SF_FORMAT_PCM_16 : |
| 122 | case SF_FORMAT_PCM_32 : |
| 123 | error = pcm_init (psf) ; |
| 124 | break ; |
| 125 | |
| 126 | case SF_FORMAT_FLOAT : |
| 127 | error = float32_init (psf) ; |
| 128 | break ; |
| 129 | |
| 130 | case SF_FORMAT_DOUBLE : |
| 131 | error = double64_init (psf) ; |
| 132 | break ; |
| 133 | |
| 134 | default : break ; |
| 135 | } ; |
| 136 | |
| 137 | return error ; |
| 138 | } /* mat5_open */ |
| 139 | |
| 140 | /*------------------------------------------------------------------------------ |
| 141 | */ |
| 142 | |
| 143 | static int |
| 144 | mat5_close (SF_PRIVATE *psf) |
| 145 | { |
| 146 | if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) |
| 147 | mat5_write_header (psf, SF_TRUE) ; |
| 148 | |
| 149 | return 0 ; |
| 150 | } /* mat5_close */ |
| 151 | |
| 152 | /*------------------------------------------------------------------------------ |
| 153 | */ |
| 154 | |
| 155 | static int |
| 156 | mat5_write_header (SF_PRIVATE *psf, int calc_length) |
| 157 | { static const char *filename = "MATLAB 5.0 MAT-file, written by " PACKAGE "-" VERSION ", " ; |
| 158 | static const char *sr_name = "samplerate\0\0\0\0\0\0\0\0\0\0\0" ; |
| 159 | static const char *wd_name = "wavedata\0" ; |
| 160 | sf_count_t current, datasize ; |
| 161 | int encoding ; |
| 162 | |
| 163 | current = psf_ftell (psf) ; |
| 164 | |
| 165 | if (calc_length) |
| 166 | { psf_fseek (psf, 0, SEEK_END) ; |
| 167 | psf->filelength = psf_ftell (psf) ; |
| 168 | psf_fseek (psf, 0, SEEK_SET) ; |
| 169 | |
| 170 | psf->datalength = psf->filelength - psf->dataoffset ; |
| 171 | if (psf->dataend) |
| 172 | psf->datalength -= psf->filelength - psf->dataend ; |
| 173 | |
| 174 | psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; |
| 175 | } ; |
| 176 | |
| 177 | switch (SF_CODEC (psf->sf.format)) |
| 178 | { case SF_FORMAT_PCM_U8 : |
| 179 | encoding = MAT5_TYPE_UCHAR ; |
| 180 | break ; |
| 181 | |
| 182 | case SF_FORMAT_PCM_16 : |
| 183 | encoding = MAT5_TYPE_INT16 ; |
| 184 | break ; |
| 185 | |
| 186 | case SF_FORMAT_PCM_32 : |
| 187 | encoding = MAT5_TYPE_INT32 ; |
| 188 | break ; |
| 189 | |
| 190 | case SF_FORMAT_FLOAT : |
| 191 | encoding = MAT5_TYPE_FLOAT ; |
| 192 | break ; |
| 193 | |
| 194 | case SF_FORMAT_DOUBLE : |
| 195 | encoding = MAT5_TYPE_DOUBLE ; |
| 196 | break ; |
| 197 | |
| 198 | default : |
| 199 | return SFE_BAD_OPEN_FORMAT ; |
| 200 | } ; |
| 201 | |
| 202 | /* Reset the current header length to zero. */ |
| 203 | psf->header [0] = 0 ; |
| 204 | psf->headindex = 0 ; |
| 205 | psf_fseek (psf, 0, SEEK_SET) ; |
| 206 | |
| 207 | psf_get_date_str (psf->u.cbuf, sizeof (psf->u.scbuf)) ; |
| 208 | psf_binheader_writef (psf, "bb", filename, strlen (filename), psf->u.cbuf, strlen (psf->u.cbuf) + 1) ; |
| 209 | |
| 210 | memset (psf->u.scbuf, ' ', 124 - psf->headindex) ; |
| 211 | psf_binheader_writef (psf, "b", psf->u.scbuf, make_size_t (124 - psf->headindex)) ; |
| 212 | |
| 213 | psf->rwf_endian = psf->endian ; |
| 214 | |
| 215 | if (psf->rwf_endian == SF_ENDIAN_BIG) |
| 216 | psf_binheader_writef (psf, "2b", 0x0100, "MI", make_size_t (2)) ; |
| 217 | else |
| 218 | psf_binheader_writef (psf, "2b", 0x0100, "IM", make_size_t (2)) ; |
| 219 | |
| 220 | psf_binheader_writef (psf, "444444", MAT5_TYPE_ARRAY, 64, MAT5_TYPE_UINT32, 8, 6, 0) ; |
| 221 | psf_binheader_writef (psf, "4444", MAT5_TYPE_INT32, 8, 1, 1) ; |
| 222 | psf_binheader_writef (psf, "44b", MAT5_TYPE_SCHAR, strlen (sr_name), sr_name, make_size_t (16)) ; |
| 223 | |
| 224 | if (psf->sf.samplerate > 0xFFFF) |
| 225 | psf_binheader_writef (psf, "44", MAT5_TYPE_COMP_UINT, psf->sf.samplerate) ; |
| 226 | else |
| 227 | { unsigned short samplerate = psf->sf.samplerate ; |
| 228 | |
| 229 | psf_binheader_writef (psf, "422", MAT5_TYPE_COMP_USHORT, samplerate, 0) ; |
| 230 | } ; |
| 231 | |
| 232 | datasize = psf->sf.frames * psf->sf.channels * psf->bytewidth ; |
| 233 | |
| 234 | psf_binheader_writef (psf, "t484444", MAT5_TYPE_ARRAY, datasize + 64, MAT5_TYPE_UINT32, 8, 6, 0) ; |
| 235 | psf_binheader_writef (psf, "t4448", MAT5_TYPE_INT32, 8, psf->sf.channels, psf->sf.frames) ; |
| 236 | psf_binheader_writef (psf, "44b", MAT5_TYPE_SCHAR, strlen (wd_name), wd_name, strlen (wd_name)) ; |
| 237 | |
| 238 | datasize = psf->sf.frames * psf->sf.channels * psf->bytewidth ; |
| 239 | if (datasize > 0x7FFFFFFF) |
| 240 | datasize = 0x7FFFFFFF ; |
| 241 | |
| 242 | psf_binheader_writef (psf, "t48", encoding, datasize) ; |
| 243 | |
| 244 | /* Header construction complete so write it out. */ |
| 245 | psf_fwrite (psf->header, psf->headindex, 1, psf) ; |
| 246 | |
| 247 | if (psf->error) |
| 248 | return psf->error ; |
| 249 | |
| 250 | psf->dataoffset = psf->headindex ; |
| 251 | |
| 252 | if (current > 0) |
| 253 | psf_fseek (psf, current, SEEK_SET) ; |
| 254 | |
| 255 | return psf->error ; |
| 256 | } /* mat5_write_header */ |
| 257 | |
| 258 | static int |
| 259 | mat5_read_header (SF_PRIVATE *psf) |
| 260 | { char name [32] ; |
| 261 | short version, endian ; |
| 262 | int type, flags1, flags2, rows, cols ; |
| 263 | unsigned size ; |
| 264 | |
| 265 | psf_binheader_readf (psf, "pb", 0, psf->u.cbuf, 124) ; |
| 266 | |
| 267 | psf->u.scbuf [125] = 0 ; |
| 268 | |
| 269 | if (strlen (psf->u.cbuf) >= 124) |
| 270 | return SFE_UNIMPLEMENTED ; |
| 271 | |
| 272 | if (strstr (psf->u.cbuf, "MATLAB 5.0 MAT-file") == psf->u.cbuf) |
| 273 | psf_log_printf (psf, "%s\n", psf->u.scbuf) ; |
| 274 | |
| 275 | |
| 276 | psf_binheader_readf (psf, "E22", &version, &endian) ; |
| 277 | |
| 278 | if (endian == MI_MARKER) |
| 279 | { psf->endian = psf->rwf_endian = SF_ENDIAN_BIG ; |
| 280 | if (CPU_IS_LITTLE_ENDIAN) version = ENDSWAP_SHORT (version) ; |
| 281 | } |
| 282 | else if (endian == IM_MARKER) |
| 283 | { psf->endian = psf->rwf_endian = SF_ENDIAN_LITTLE ; |
| 284 | if (CPU_IS_BIG_ENDIAN) version = ENDSWAP_SHORT (version) ; |
| 285 | } |
| 286 | else |
| 287 | return SFE_MAT5_BAD_ENDIAN ; |
| 288 | |
| 289 | if ((CPU_IS_LITTLE_ENDIAN && endian == IM_MARKER) || |
| 290 | (CPU_IS_BIG_ENDIAN && endian == MI_MARKER)) |
| 291 | version = ENDSWAP_SHORT (version) ; |
| 292 | |
| 293 | psf_log_printf (psf, "Version : 0x%04X\n", version) ; |
| 294 | psf_log_printf (psf, "Endian : 0x%04X => %s\n", endian, |
| 295 | (psf->endian == SF_ENDIAN_LITTLE) ? "Little" : "Big") ; |
| 296 | |
| 297 | /*========================================================*/ |
| 298 | psf_binheader_readf (psf, "44", &type, &size) ; |
| 299 | psf_log_printf (psf, "Block\n Type : %X Size : %d\n", type, size) ; |
| 300 | |
| 301 | if (type != MAT5_TYPE_ARRAY) |
| 302 | return SFE_MAT5_NO_BLOCK ; |
| 303 | |
| 304 | psf_binheader_readf (psf, "44", &type, &size) ; |
| 305 | psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; |
| 306 | |
| 307 | if (type != MAT5_TYPE_UINT32) |
| 308 | return SFE_MAT5_NO_BLOCK ; |
| 309 | |
| 310 | psf_binheader_readf (psf, "44", &flags1, &flags2) ; |
| 311 | psf_log_printf (psf, " Flg1 : %X Flg2 : %d\n", flags1, flags2) ; |
| 312 | |
| 313 | psf_binheader_readf (psf, "44", &type, &size) ; |
| 314 | psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; |
| 315 | |
| 316 | if (type != MAT5_TYPE_INT32) |
| 317 | return SFE_MAT5_NO_BLOCK ; |
| 318 | |
| 319 | psf_binheader_readf (psf, "44", &rows, &cols) ; |
| 320 | psf_log_printf (psf, " Rows : %X Cols : %d\n", rows, cols) ; |
| 321 | |
| 322 | if (rows != 1 || cols != 1) |
| 323 | return SFE_MAT5_SAMPLE_RATE ; |
| 324 | |
| 325 | psf_binheader_readf (psf, "4", &type) ; |
| 326 | |
| 327 | if (type == MAT5_TYPE_SCHAR) |
| 328 | { psf_binheader_readf (psf, "4", &size) ; |
| 329 | psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; |
| 330 | if (size > SIGNED_SIZEOF (name) - 1) |
| 331 | { psf_log_printf (psf, "Error : Bad name length.\n") ; |
| 332 | return SFE_MAT5_NO_BLOCK ; |
| 333 | } ; |
| 334 | |
| 335 | psf_binheader_readf (psf, "bj", name, size, (8 - (size % 8)) % 8) ; |
| 336 | name [size] = 0 ; |
| 337 | } |
| 338 | else if ((type & 0xFFFF) == MAT5_TYPE_SCHAR) |
| 339 | { size = type >> 16 ; |
| 340 | if (size > 4) |
| 341 | { psf_log_printf (psf, "Error : Bad name length.\n") ; |
| 342 | return SFE_MAT5_NO_BLOCK ; |
| 343 | } ; |
| 344 | |
| 345 | psf_log_printf (psf, " Type : %X\n", type) ; |
| 346 | psf_binheader_readf (psf, "4", &name) ; |
| 347 | name [size] = 0 ; |
| 348 | } |
| 349 | else |
| 350 | return SFE_MAT5_NO_BLOCK ; |
| 351 | |
| 352 | psf_log_printf (psf, " Name : %s\n", name) ; |
| 353 | |
| 354 | /*-----------------------------------------*/ |
| 355 | |
| 356 | psf_binheader_readf (psf, "44", &type, &size) ; |
| 357 | |
| 358 | switch (type) |
| 359 | { case MAT5_TYPE_DOUBLE : |
| 360 | { double samplerate ; |
| 361 | |
| 362 | psf_binheader_readf (psf, "d", &samplerate) ; |
| 363 | snprintf (name, sizeof (name), "%f\n", samplerate) ; |
| 364 | psf_log_printf (psf, " Val : %s\n", name) ; |
| 365 | |
| 366 | psf->sf.samplerate = lrint (samplerate) ; |
| 367 | } ; |
| 368 | break ; |
| 369 | |
| 370 | case MAT5_TYPE_COMP_USHORT : |
| 371 | { unsigned short samplerate ; |
| 372 | |
| 373 | psf_binheader_readf (psf, "j2j", -4, &samplerate, 2) ; |
| 374 | psf_log_printf (psf, " Val : %u\n", samplerate) ; |
| 375 | psf->sf.samplerate = samplerate ; |
| 376 | } |
| 377 | break ; |
| 378 | |
| 379 | case MAT5_TYPE_COMP_UINT : |
| 380 | psf_log_printf (psf, " Val : %u\n", size) ; |
| 381 | psf->sf.samplerate = size ; |
| 382 | break ; |
| 383 | |
| 384 | default : |
| 385 | psf_log_printf (psf, " Type : %X Size : %d ***\n", type, size) ; |
| 386 | return SFE_MAT5_SAMPLE_RATE ; |
| 387 | } ; |
| 388 | |
| 389 | /*-----------------------------------------*/ |
| 390 | |
| 391 | |
| 392 | psf_binheader_readf (psf, "44", &type, &size) ; |
| 393 | psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; |
| 394 | |
| 395 | if (type != MAT5_TYPE_ARRAY) |
| 396 | return SFE_MAT5_NO_BLOCK ; |
| 397 | |
| 398 | psf_binheader_readf (psf, "44", &type, &size) ; |
| 399 | psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; |
| 400 | |
| 401 | if (type != MAT5_TYPE_UINT32) |
| 402 | return SFE_MAT5_NO_BLOCK ; |
| 403 | |
| 404 | psf_binheader_readf (psf, "44", &flags1, &flags2) ; |
| 405 | psf_log_printf (psf, " Flg1 : %X Flg2 : %d\n", flags1, flags2) ; |
| 406 | |
| 407 | psf_binheader_readf (psf, "44", &type, &size) ; |
| 408 | psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; |
| 409 | |
| 410 | if (type != MAT5_TYPE_INT32) |
| 411 | return SFE_MAT5_NO_BLOCK ; |
| 412 | |
| 413 | psf_binheader_readf (psf, "44", &rows, &cols) ; |
| 414 | psf_log_printf (psf, " Rows : %X Cols : %d\n", rows, cols) ; |
| 415 | |
| 416 | psf_binheader_readf (psf, "4", &type) ; |
| 417 | |
| 418 | if (type == MAT5_TYPE_SCHAR) |
| 419 | { psf_binheader_readf (psf, "4", &size) ; |
| 420 | psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; |
| 421 | if (size > SIGNED_SIZEOF (name) - 1) |
| 422 | { psf_log_printf (psf, "Error : Bad name length.\n") ; |
| 423 | return SFE_MAT5_NO_BLOCK ; |
| 424 | } ; |
| 425 | |
| 426 | psf_binheader_readf (psf, "bj", name, size, (8 - (size % 8)) % 8) ; |
| 427 | name [size] = 0 ; |
| 428 | } |
| 429 | else if ((type & 0xFFFF) == MAT5_TYPE_SCHAR) |
| 430 | { size = type >> 16 ; |
| 431 | if (size > 4) |
| 432 | { psf_log_printf (psf, "Error : Bad name length.\n") ; |
| 433 | return SFE_MAT5_NO_BLOCK ; |
| 434 | } ; |
| 435 | |
| 436 | psf_log_printf (psf, " Type : %X\n", type) ; |
| 437 | psf_binheader_readf (psf, "4", &name) ; |
| 438 | name [size] = 0 ; |
| 439 | } |
| 440 | else |
| 441 | return SFE_MAT5_NO_BLOCK ; |
| 442 | |
| 443 | psf_log_printf (psf, " Name : %s\n", name) ; |
| 444 | |
| 445 | psf_binheader_readf (psf, "44", &type, &size) ; |
| 446 | psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; |
| 447 | |
| 448 | /*++++++++++++++++++++++++++++++++++++++++++++++++++*/ |
| 449 | |
| 450 | if (rows == 0 && cols == 0) |
| 451 | { psf_log_printf (psf, "*** Error : zero channel count.\n") ; |
| 452 | return SFE_CHANNEL_COUNT_ZERO ; |
| 453 | } ; |
| 454 | |
| 455 | psf->sf.channels = rows ; |
| 456 | psf->sf.frames = cols ; |
| 457 | |
| 458 | psf->sf.format = psf->endian | SF_FORMAT_MAT5 ; |
| 459 | |
| 460 | switch (type) |
| 461 | { case MAT5_TYPE_DOUBLE : |
| 462 | psf_log_printf (psf, "Data type : double\n") ; |
| 463 | psf->sf.format |= SF_FORMAT_DOUBLE ; |
| 464 | psf->bytewidth = 8 ; |
| 465 | break ; |
| 466 | |
| 467 | case MAT5_TYPE_FLOAT : |
| 468 | psf_log_printf (psf, "Data type : float\n") ; |
| 469 | psf->sf.format |= SF_FORMAT_FLOAT ; |
| 470 | psf->bytewidth = 4 ; |
| 471 | break ; |
| 472 | |
| 473 | case MAT5_TYPE_INT32 : |
| 474 | psf_log_printf (psf, "Data type : 32 bit PCM\n") ; |
| 475 | psf->sf.format |= SF_FORMAT_PCM_32 ; |
| 476 | psf->bytewidth = 4 ; |
| 477 | break ; |
| 478 | |
| 479 | case MAT5_TYPE_INT16 : |
| 480 | psf_log_printf (psf, "Data type : 16 bit PCM\n") ; |
| 481 | psf->sf.format |= SF_FORMAT_PCM_16 ; |
| 482 | psf->bytewidth = 2 ; |
| 483 | break ; |
| 484 | |
| 485 | case MAT5_TYPE_UCHAR : |
| 486 | psf_log_printf (psf, "Data type : unsigned 8 bit PCM\n") ; |
| 487 | psf->sf.format |= SF_FORMAT_PCM_U8 ; |
| 488 | psf->bytewidth = 1 ; |
| 489 | break ; |
| 490 | |
| 491 | default : |
| 492 | psf_log_printf (psf, "*** Error : Bad marker %08X\n", type) ; |
| 493 | return SFE_UNIMPLEMENTED ; |
| 494 | } ; |
| 495 | |
| 496 | psf->dataoffset = psf_ftell (psf) ; |
| 497 | psf->datalength = psf->filelength - psf->dataoffset ; |
| 498 | |
| 499 | return 0 ; |
| 500 | } /* mat5_read_header */ |
| 501 | |