Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 1 | /* |
| 2 | ** Copyright (C) 1999-2011 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 <string.h> |
| 23 | #include <ctype.h> |
| 24 | #include <time.h> |
| 25 | |
| 26 | #include "sndfile.h" |
| 27 | #include "sfendian.h" |
| 28 | #include "common.h" |
| 29 | #include "wav_w64.h" |
| 30 | |
| 31 | /*------------------------------------------------------------------------------ |
| 32 | ** W64 files use 16 byte markers as opposed to the four byte marker of |
| 33 | ** WAV files. |
| 34 | ** For comparison purposes, an integer is required, so make an integer |
| 35 | ** hash for the 16 bytes using MAKE_HASH16 macro, but also create a 16 |
| 36 | ** byte array containing the complete 16 bytes required when writing the |
| 37 | ** header. |
| 38 | */ |
| 39 | |
| 40 | #define MAKE_HASH16(x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,xa,xb,xc,xd,xe,xf) \ |
| 41 | ( (x0) ^ ((x1) << 1) ^ ((x2) << 2) ^ ((x3) << 3) ^ \ |
| 42 | ((x4) << 4) ^ ((x5) << 5) ^ ((x6) << 6) ^ ((x7) << 7) ^ \ |
| 43 | ((x8) << 8) ^ ((x9) << 9) ^ ((xa) << 10) ^ ((xb) << 11) ^ \ |
| 44 | ((xc) << 12) ^ ((xd) << 13) ^ ((xe) << 14) ^ ((xf) << 15) ) |
| 45 | |
| 46 | #define MAKE_MARKER16(name,x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,xa,xb,xc,xd,xe,xf) \ |
| 47 | static unsigned char name [16] = { (x0), (x1), (x2), (x3), (x4), (x5), \ |
| 48 | (x6), (x7), (x8), (x9), (xa), (xb), (xc), (xd), (xe), (xf) } |
| 49 | |
| 50 | #define riff_HASH16 MAKE_HASH16 ('r', 'i', 'f', 'f', 0x2E, 0x91, 0xCF, 0x11, \ |
| 51 | 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) |
| 52 | |
| 53 | #define wave_HASH16 MAKE_HASH16 ('w', 'a', 'v', 'e', 0xF3, 0xAC, 0xD3, 0x11, \ |
| 54 | 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) |
| 55 | |
| 56 | #define fmt_HASH16 MAKE_HASH16 ('f', 'm', 't', ' ', 0xF3, 0xAC, 0xD3, 0x11, \ |
| 57 | 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) |
| 58 | |
| 59 | #define fact_HASH16 MAKE_HASH16 ('f', 'a', 'c', 't', 0xF3, 0xAC, 0xD3, 0x11, \ |
| 60 | 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) |
| 61 | |
| 62 | #define data_HASH16 MAKE_HASH16 ('d', 'a', 't', 'a', 0xF3, 0xAC, 0xD3, 0x11, \ |
| 63 | 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) |
| 64 | |
| 65 | #define ACID_HASH16 MAKE_HASH16 (0x6D, 0x07, 0x1C, 0xEA, 0xA3, 0xEF, 0x78, 0x4C, \ |
| 66 | 0x90, 0x57, 0x7F, 0x79, 0xEE, 0x25, 0x2A, 0xAE) |
| 67 | |
| 68 | #define levl_HASH16 MAKE_HASH16 (0x6c, 0x65, 0x76, 0x6c, 0xf3, 0xac, 0xd3, 0x11, \ |
| 69 | 0xd1, 0x8c, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) |
| 70 | |
| 71 | #define list_HASH16 MAKE_HASH16 (0x6C, 0x69, 0x73, 0x74, 0x2F, 0x91, 0xCF, 0x11, \ |
| 72 | 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) |
| 73 | |
| 74 | #define junk_HASH16 MAKE_HASH16 (0x6A, 0x75, 0x6E, 0x6b, 0xF3, 0xAC, 0xD3, 0x11, \ |
| 75 | 0x8C, 0xD1, 0x00, 0xC0, 0x4f, 0x8E, 0xDB, 0x8A) |
| 76 | |
| 77 | #define bext_MARKER MAKE_HASH16 (0x62, 0x65, 0x78, 0x74, 0xf3, 0xac, 0xd3, 0xaa, \ |
| 78 | 0xd1, 0x8c, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) |
| 79 | |
| 80 | #define MARKER_HASH16 MAKE_HASH16 (0x56, 0x62, 0xf7, 0xab, 0x2d, 0x39, 0xd2, 0x11, \ |
| 81 | 0x86, 0xc7, 0x00, 0xc0, 0x4f, 0x8e, 0xdb, 0x8a) |
| 82 | |
| 83 | #define SUMLIST_HASH16 MAKE_HASH16 (0xBC, 0x94, 0x5F, 0x92, 0x5A, 0x52, 0xD2, 0x11, \ |
| 84 | 0x86, 0xDC, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) |
| 85 | |
| 86 | |
| 87 | MAKE_MARKER16 (riff_MARKER16, 'r', 'i', 'f', 'f', 0x2E, 0x91, 0xCF, 0x11, |
| 88 | 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) ; |
| 89 | |
| 90 | |
| 91 | MAKE_MARKER16 (wave_MARKER16, 'w', 'a', 'v', 'e', 0xF3, 0xAC, 0xD3, 0x11, |
| 92 | 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; |
| 93 | |
| 94 | MAKE_MARKER16 (fmt_MARKER16, 'f', 'm', 't', ' ', 0xF3, 0xAC, 0xD3, 0x11, |
| 95 | 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; |
| 96 | |
| 97 | MAKE_MARKER16 (fact_MARKER16, 'f', 'a', 'c', 't', 0xF3, 0xAC, 0xD3, 0x11, |
| 98 | 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; |
| 99 | |
| 100 | MAKE_MARKER16 (data_MARKER16, 'd', 'a', 't', 'a', 0xF3, 0xAC, 0xD3, 0x11, |
| 101 | 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; |
| 102 | |
| 103 | enum |
| 104 | { HAVE_riff = 0x01, |
| 105 | HAVE_wave = 0x02, |
| 106 | HAVE_fmt = 0x04, |
| 107 | HAVE_fact = 0x08, |
| 108 | HAVE_data = 0x20 |
| 109 | } ; |
| 110 | |
| 111 | /*------------------------------------------------------------------------------ |
| 112 | * Private static functions. |
| 113 | */ |
| 114 | |
| 115 | static int w64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ; |
| 116 | static int w64_write_header (SF_PRIVATE *psf, int calc_length) ; |
| 117 | static int w64_close (SF_PRIVATE *psf) ; |
| 118 | |
| 119 | /*------------------------------------------------------------------------------ |
| 120 | ** Public function. |
| 121 | */ |
| 122 | |
| 123 | int |
| 124 | w64_open (SF_PRIVATE *psf) |
| 125 | { WAV_PRIVATE * wpriv ; |
| 126 | int subformat, error, blockalign = 0, framesperblock = 0 ; |
| 127 | |
| 128 | if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL) |
| 129 | return SFE_MALLOC_FAILED ; |
| 130 | psf->container_data = wpriv ; |
| 131 | |
| 132 | if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR &&psf->filelength > 0)) |
| 133 | { if ((error = w64_read_header (psf, &blockalign, &framesperblock))) |
| 134 | return error ; |
| 135 | } ; |
| 136 | |
| 137 | if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_W64) |
| 138 | return SFE_BAD_OPEN_FORMAT ; |
| 139 | |
| 140 | subformat = SF_CODEC (psf->sf.format) ; |
| 141 | |
| 142 | if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) |
| 143 | { if (psf->is_pipe) |
| 144 | return SFE_NO_PIPE_WRITE ; |
| 145 | |
| 146 | psf->endian = SF_ENDIAN_LITTLE ; /* All W64 files are little endian. */ |
| 147 | |
| 148 | psf->blockwidth = psf->bytewidth * psf->sf.channels ; |
| 149 | |
| 150 | if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) |
| 151 | { blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; |
| 152 | framesperblock = -1 ; |
| 153 | |
| 154 | /* FIXME : This block must go */ |
| 155 | psf->filelength = SF_COUNT_MAX ; |
| 156 | psf->datalength = psf->filelength ; |
| 157 | if (psf->sf.frames <= 0) |
| 158 | psf->sf.frames = (psf->blockwidth) ? psf->filelength / psf->blockwidth : psf->filelength ; |
| 159 | /* EMXIF : This block must go */ |
| 160 | } ; |
| 161 | |
| 162 | if ((error = w64_write_header (psf, SF_FALSE))) |
| 163 | return error ; |
| 164 | |
| 165 | psf->write_header = w64_write_header ; |
| 166 | } ; |
| 167 | |
| 168 | psf->container_close = w64_close ; |
| 169 | |
| 170 | switch (subformat) |
| 171 | { case SF_FORMAT_PCM_U8 : |
| 172 | error = pcm_init (psf) ; |
| 173 | break ; |
| 174 | |
| 175 | case SF_FORMAT_PCM_16 : |
| 176 | case SF_FORMAT_PCM_24 : |
| 177 | case SF_FORMAT_PCM_32 : |
| 178 | error = pcm_init (psf) ; |
| 179 | break ; |
| 180 | |
| 181 | case SF_FORMAT_ULAW : |
| 182 | error = ulaw_init (psf) ; |
| 183 | break ; |
| 184 | |
| 185 | case SF_FORMAT_ALAW : |
| 186 | error = alaw_init (psf) ; |
| 187 | break ; |
| 188 | |
| 189 | /* Lite remove start */ |
| 190 | case SF_FORMAT_FLOAT : |
| 191 | error = float32_init (psf) ; |
| 192 | break ; |
| 193 | |
| 194 | case SF_FORMAT_DOUBLE : |
| 195 | error = double64_init (psf) ; |
| 196 | break ; |
| 197 | |
| 198 | case SF_FORMAT_IMA_ADPCM : |
| 199 | error = wav_w64_ima_init (psf, blockalign, framesperblock) ; |
| 200 | break ; |
| 201 | |
| 202 | case SF_FORMAT_MS_ADPCM : |
| 203 | error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ; |
| 204 | break ; |
| 205 | /* Lite remove end */ |
| 206 | |
| 207 | case SF_FORMAT_GSM610 : |
| 208 | error = gsm610_init (psf) ; |
| 209 | break ; |
| 210 | |
| 211 | default : return SFE_UNIMPLEMENTED ; |
| 212 | } ; |
| 213 | |
| 214 | return error ; |
| 215 | } /* w64_open */ |
| 216 | |
| 217 | /*========================================================================= |
| 218 | ** Private functions. |
| 219 | */ |
| 220 | |
| 221 | static int |
| 222 | w64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) |
| 223 | { WAV_PRIVATE *wpriv ; |
| 224 | WAV_FMT *wav_fmt ; |
| 225 | int dword = 0, marker, format = 0 ; |
| 226 | sf_count_t chunk_size, bytesread = 0 ; |
| 227 | int parsestage = 0, error, done = 0 ; |
| 228 | |
| 229 | if ((wpriv = psf->container_data) == NULL) |
| 230 | return SFE_INTERNAL ; |
| 231 | wav_fmt = &wpriv->wav_fmt ; |
| 232 | |
| 233 | /* Set position to start of file to begin reading header. */ |
| 234 | psf_binheader_readf (psf, "p", 0) ; |
| 235 | |
| 236 | while (! done) |
| 237 | { /* Each new chunk must start on an 8 byte boundary, so jump if needed. */ |
| 238 | if (psf->headindex & 0x7) |
| 239 | psf_binheader_readf (psf, "j", 8 - (psf->headindex & 0x7)) ; |
| 240 | |
| 241 | /* Generate hash of 16 byte marker. */ |
| 242 | bytesread += psf_binheader_readf (psf, "h", &marker) ; |
| 243 | chunk_size = 0 ; |
| 244 | |
| 245 | switch (marker) |
| 246 | { case riff_HASH16 : |
| 247 | if (parsestage) |
| 248 | return SFE_W64_NO_RIFF ; |
| 249 | |
| 250 | bytesread += psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 251 | |
| 252 | if (psf->filelength != chunk_size) |
| 253 | psf_log_printf (psf, "riff : %D (should be %D)\n", chunk_size, psf->filelength) ; |
| 254 | else |
| 255 | psf_log_printf (psf, "riff : %D\n", chunk_size) ; |
| 256 | |
| 257 | parsestage |= HAVE_riff ; |
| 258 | break ; |
| 259 | |
| 260 | case ACID_HASH16: |
| 261 | psf_log_printf (psf, "Looks like an ACID file. Exiting.\n") ; |
| 262 | return SFE_UNIMPLEMENTED ; |
| 263 | |
| 264 | case wave_HASH16 : |
| 265 | if ((parsestage & HAVE_riff) != HAVE_riff) |
| 266 | return SFE_W64_NO_WAVE ; |
| 267 | psf_log_printf (psf, "wave\n") ; |
| 268 | parsestage |= HAVE_wave ; |
| 269 | break ; |
| 270 | |
| 271 | case fmt_HASH16 : |
| 272 | if ((parsestage & (HAVE_riff | HAVE_wave)) != (HAVE_riff | HAVE_wave)) |
| 273 | return SFE_WAV_NO_FMT ; |
| 274 | |
| 275 | bytesread += psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 276 | psf_log_printf (psf, " fmt : %D\n", chunk_size) ; |
| 277 | |
| 278 | /* size of 16 byte marker and 8 byte chunk_size value. */ |
| 279 | chunk_size -= 24 ; |
| 280 | |
| 281 | if ((error = wav_w64_read_fmt_chunk (psf, (int) chunk_size))) |
| 282 | return error ; |
| 283 | |
| 284 | if (chunk_size % 8) |
| 285 | psf_binheader_readf (psf, "j", 8 - (chunk_size % 8)) ; |
| 286 | |
| 287 | format = wav_fmt->format ; |
| 288 | parsestage |= HAVE_fmt ; |
| 289 | break ; |
| 290 | |
| 291 | case fact_HASH16: |
| 292 | { sf_count_t frames ; |
| 293 | |
| 294 | psf_binheader_readf (psf, "e88", &chunk_size, &frames) ; |
| 295 | psf_log_printf (psf, " fact : %D\n frames : %D\n", |
| 296 | chunk_size, frames) ; |
| 297 | } ; |
| 298 | break ; |
| 299 | |
| 300 | |
| 301 | case data_HASH16 : |
| 302 | if ((parsestage & (HAVE_riff | HAVE_wave | HAVE_fmt)) != (HAVE_riff | HAVE_wave | HAVE_fmt)) |
| 303 | return SFE_W64_NO_DATA ; |
| 304 | |
| 305 | psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 306 | |
| 307 | psf->dataoffset = psf_ftell (psf) ; |
| 308 | |
| 309 | psf->datalength = chunk_size - 24 ; |
| 310 | |
| 311 | if (chunk_size % 8) |
| 312 | chunk_size += 8 - (chunk_size % 8) ; |
| 313 | |
| 314 | psf_log_printf (psf, "data : %D\n", chunk_size) ; |
| 315 | |
| 316 | parsestage |= HAVE_data ; |
| 317 | |
| 318 | if (! psf->sf.seekable) |
| 319 | break ; |
| 320 | |
| 321 | /* Seek past data and continue reading header. */ |
| 322 | psf_fseek (psf, chunk_size, SEEK_CUR) ; |
| 323 | break ; |
| 324 | |
| 325 | case levl_HASH16 : |
| 326 | psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 327 | psf_log_printf (psf, "levl : %D\n", chunk_size) ; |
| 328 | dword = chunk_size ; |
| 329 | psf_binheader_readf (psf, "j", dword - 24) ; |
| 330 | break ; |
| 331 | |
| 332 | case list_HASH16 : |
| 333 | psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 334 | psf_log_printf (psf, "list : %D\n", chunk_size) ; |
| 335 | dword = chunk_size ; |
| 336 | psf_binheader_readf (psf, "j", dword - 24) ; |
| 337 | break ; |
| 338 | |
| 339 | case junk_HASH16 : |
| 340 | psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 341 | psf_log_printf (psf, "junk : %D\n", chunk_size) ; |
| 342 | dword = chunk_size ; |
| 343 | psf_binheader_readf (psf, "j", dword - 24) ; |
| 344 | break ; |
| 345 | |
| 346 | case bext_MARKER : |
| 347 | psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 348 | psf_log_printf (psf, "bext : %D\n", chunk_size) ; |
| 349 | dword = chunk_size ; |
| 350 | psf_binheader_readf (psf, "j", dword - 24) ; |
| 351 | break ; |
| 352 | |
| 353 | case MARKER_HASH16 : |
| 354 | psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 355 | psf_log_printf (psf, "marker : %D\n", chunk_size) ; |
| 356 | dword = chunk_size ; |
| 357 | psf_binheader_readf (psf, "j", dword - 24) ; |
| 358 | break ; |
| 359 | |
| 360 | case SUMLIST_HASH16 : |
| 361 | psf_binheader_readf (psf, "e8", &chunk_size) ; |
| 362 | psf_log_printf (psf, "summary list : %D\n", chunk_size) ; |
| 363 | dword = chunk_size ; |
| 364 | psf_binheader_readf (psf, "j", dword - 24) ; |
| 365 | break ; |
| 366 | |
| 367 | default : |
| 368 | psf_log_printf (psf, "*** Unknown chunk marker : %X. Exiting parser.\n", marker) ; |
| 369 | done = SF_TRUE ; |
| 370 | break ; |
| 371 | } ; /* switch (dword) */ |
| 372 | |
| 373 | if (psf->sf.seekable == 0 && (parsestage & HAVE_data)) |
| 374 | break ; |
| 375 | |
| 376 | if (psf_ftell (psf) >= (psf->filelength - (2 * SIGNED_SIZEOF (dword)))) |
| 377 | break ; |
| 378 | } ; /* while (1) */ |
| 379 | |
| 380 | if (psf->dataoffset <= 0) |
| 381 | return SFE_W64_NO_DATA ; |
| 382 | |
| 383 | psf->endian = SF_ENDIAN_LITTLE ; /* All W64 files are little endian. */ |
| 384 | |
| 385 | if (psf_ftell (psf) != psf->dataoffset) |
| 386 | psf_fseek (psf, psf->dataoffset, SEEK_SET) ; |
| 387 | |
| 388 | if (psf->blockwidth) |
| 389 | { if (psf->filelength - psf->dataoffset < psf->datalength) |
| 390 | psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; |
| 391 | else |
| 392 | psf->sf.frames = psf->datalength / psf->blockwidth ; |
| 393 | } ; |
| 394 | |
| 395 | switch (format) |
| 396 | { case WAVE_FORMAT_PCM : |
| 397 | case WAVE_FORMAT_EXTENSIBLE : |
| 398 | /* extensible might be FLOAT, MULAW, etc as well! */ |
| 399 | psf->sf.format = SF_FORMAT_W64 | u_bitwidth_to_subformat (psf->bytewidth * 8) ; |
| 400 | break ; |
| 401 | |
| 402 | case WAVE_FORMAT_MULAW : |
| 403 | psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_ULAW) ; |
| 404 | break ; |
| 405 | |
| 406 | case WAVE_FORMAT_ALAW : |
| 407 | psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_ALAW) ; |
| 408 | break ; |
| 409 | |
| 410 | case WAVE_FORMAT_MS_ADPCM : |
| 411 | psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_MS_ADPCM) ; |
| 412 | *blockalign = wav_fmt->msadpcm.blockalign ; |
| 413 | *framesperblock = wav_fmt->msadpcm.samplesperblock ; |
| 414 | break ; |
| 415 | |
| 416 | case WAVE_FORMAT_IMA_ADPCM : |
| 417 | psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_IMA_ADPCM) ; |
| 418 | *blockalign = wav_fmt->ima.blockalign ; |
| 419 | *framesperblock = wav_fmt->ima.samplesperblock ; |
| 420 | break ; |
| 421 | |
| 422 | case WAVE_FORMAT_GSM610 : |
| 423 | psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_GSM610) ; |
| 424 | break ; |
| 425 | |
| 426 | case WAVE_FORMAT_IEEE_FLOAT : |
| 427 | psf->sf.format = SF_FORMAT_W64 ; |
| 428 | psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ; |
| 429 | break ; |
| 430 | |
| 431 | default : return SFE_UNIMPLEMENTED ; |
| 432 | } ; |
| 433 | |
| 434 | return 0 ; |
| 435 | } /* w64_read_header */ |
| 436 | |
| 437 | static int |
| 438 | w64_write_header (SF_PRIVATE *psf, int calc_length) |
| 439 | { sf_count_t fmt_size, current ; |
| 440 | size_t fmt_pad = 0 ; |
| 441 | int subformat, add_fact_chunk = SF_FALSE ; |
| 442 | |
| 443 | current = psf_ftell (psf) ; |
| 444 | |
| 445 | if (calc_length) |
| 446 | { psf->filelength = psf_get_filelen (psf) ; |
| 447 | |
| 448 | psf->datalength = psf->filelength - psf->dataoffset ; |
| 449 | if (psf->dataend) |
| 450 | psf->datalength -= psf->filelength - psf->dataend ; |
| 451 | |
| 452 | if (psf->bytewidth) |
| 453 | psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; |
| 454 | } ; |
| 455 | |
| 456 | /* Reset the current header length to zero. */ |
| 457 | psf->header [0] = 0 ; |
| 458 | psf->headindex = 0 ; |
| 459 | psf_fseek (psf, 0, SEEK_SET) ; |
| 460 | |
| 461 | /* riff marker, length, wave and 'fmt ' markers. */ |
| 462 | psf_binheader_writef (psf, "eh8hh", riff_MARKER16, psf->filelength, wave_MARKER16, fmt_MARKER16) ; |
| 463 | |
| 464 | subformat = SF_CODEC (psf->sf.format) ; |
| 465 | |
| 466 | switch (subformat) |
| 467 | { case SF_FORMAT_PCM_U8 : |
| 468 | case SF_FORMAT_PCM_16 : |
| 469 | case SF_FORMAT_PCM_24 : |
| 470 | case SF_FORMAT_PCM_32 : |
| 471 | fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; |
| 472 | fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; |
| 473 | fmt_size += fmt_pad ; |
| 474 | |
| 475 | /* fmt : format, channels, samplerate */ |
| 476 | psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_PCM, psf->sf.channels, psf->sf.samplerate) ; |
| 477 | /* fmt : bytespersec */ |
| 478 | psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; |
| 479 | /* fmt : blockalign, bitwidth */ |
| 480 | psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; |
| 481 | break ; |
| 482 | |
| 483 | case SF_FORMAT_FLOAT : |
| 484 | case SF_FORMAT_DOUBLE : |
| 485 | fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; |
| 486 | fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; |
| 487 | fmt_size += fmt_pad ; |
| 488 | |
| 489 | /* fmt : format, channels, samplerate */ |
| 490 | psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_IEEE_FLOAT, psf->sf.channels, psf->sf.samplerate) ; |
| 491 | /* fmt : bytespersec */ |
| 492 | psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; |
| 493 | /* fmt : blockalign, bitwidth */ |
| 494 | psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; |
| 495 | |
| 496 | add_fact_chunk = SF_TRUE ; |
| 497 | break ; |
| 498 | |
| 499 | case SF_FORMAT_ULAW : |
| 500 | fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; |
| 501 | fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; |
| 502 | fmt_size += fmt_pad ; |
| 503 | |
| 504 | /* fmt : format, channels, samplerate */ |
| 505 | psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_MULAW, psf->sf.channels, psf->sf.samplerate) ; |
| 506 | /* fmt : bytespersec */ |
| 507 | psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; |
| 508 | /* fmt : blockalign, bitwidth */ |
| 509 | psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, 8) ; |
| 510 | |
| 511 | add_fact_chunk = SF_TRUE ; |
| 512 | break ; |
| 513 | |
| 514 | case SF_FORMAT_ALAW : |
| 515 | fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; |
| 516 | fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; |
| 517 | fmt_size += fmt_pad ; |
| 518 | |
| 519 | /* fmt : format, channels, samplerate */ |
| 520 | psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_ALAW, psf->sf.channels, psf->sf.samplerate) ; |
| 521 | /* fmt : bytespersec */ |
| 522 | psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; |
| 523 | /* fmt : blockalign, bitwidth */ |
| 524 | psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, 8) ; |
| 525 | |
| 526 | add_fact_chunk = SF_TRUE ; |
| 527 | break ; |
| 528 | |
| 529 | /* Lite remove start */ |
| 530 | case SF_FORMAT_IMA_ADPCM : |
| 531 | { int blockalign, framesperblock, bytespersec ; |
| 532 | |
| 533 | blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; |
| 534 | framesperblock = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ; |
| 535 | bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; |
| 536 | |
| 537 | /* fmt chunk. */ |
| 538 | fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; |
| 539 | fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; |
| 540 | fmt_size += fmt_pad ; |
| 541 | |
| 542 | /* fmt : size, WAV format type, channels. */ |
| 543 | psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_IMA_ADPCM, psf->sf.channels) ; |
| 544 | |
| 545 | /* fmt : samplerate, bytespersec. */ |
| 546 | psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; |
| 547 | |
| 548 | /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ |
| 549 | psf_binheader_writef (psf, "e2222", blockalign, 4, 2, framesperblock) ; |
| 550 | } ; |
| 551 | |
| 552 | add_fact_chunk = SF_TRUE ; |
| 553 | break ; |
| 554 | |
| 555 | case SF_FORMAT_MS_ADPCM : |
| 556 | { int blockalign, framesperblock, bytespersec, extrabytes ; |
| 557 | |
| 558 | blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; |
| 559 | framesperblock = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ; |
| 560 | bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; |
| 561 | |
| 562 | /* fmt chunk. */ |
| 563 | extrabytes = 2 + 2 + MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ; |
| 564 | fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ; |
| 565 | fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; |
| 566 | fmt_size += fmt_pad ; |
| 567 | |
| 568 | /* fmt : size, W64 format type, channels. */ |
| 569 | psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_MS_ADPCM, psf->sf.channels) ; |
| 570 | |
| 571 | /* fmt : samplerate, bytespersec. */ |
| 572 | psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; |
| 573 | |
| 574 | /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ |
| 575 | psf_binheader_writef (psf, "e22222", blockalign, 4, extrabytes, framesperblock, 7) ; |
| 576 | |
| 577 | msadpcm_write_adapt_coeffs (psf) ; |
| 578 | } ; |
| 579 | |
| 580 | add_fact_chunk = SF_TRUE ; |
| 581 | break ; |
| 582 | /* Lite remove end */ |
| 583 | |
| 584 | case SF_FORMAT_GSM610 : |
| 585 | { int bytespersec ; |
| 586 | |
| 587 | bytespersec = (psf->sf.samplerate * WAV_W64_GSM610_BLOCKSIZE) / WAV_W64_GSM610_SAMPLES ; |
| 588 | |
| 589 | /* fmt chunk. */ |
| 590 | fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; |
| 591 | fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; |
| 592 | fmt_size += fmt_pad ; |
| 593 | |
| 594 | /* fmt : size, WAV format type, channels. */ |
| 595 | psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_GSM610, psf->sf.channels) ; |
| 596 | |
| 597 | /* fmt : samplerate, bytespersec. */ |
| 598 | psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; |
| 599 | |
| 600 | /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ |
| 601 | psf_binheader_writef (psf, "e2222", WAV_W64_GSM610_BLOCKSIZE, 0, 2, WAV_W64_GSM610_SAMPLES) ; |
| 602 | } ; |
| 603 | |
| 604 | add_fact_chunk = SF_TRUE ; |
| 605 | break ; |
| 606 | |
| 607 | default : return SFE_UNIMPLEMENTED ; |
| 608 | } ; |
| 609 | |
| 610 | /* Pad to 8 bytes with zeros. */ |
| 611 | if (fmt_pad > 0) |
| 612 | psf_binheader_writef (psf, "z", fmt_pad) ; |
| 613 | |
| 614 | if (add_fact_chunk) |
| 615 | psf_binheader_writef (psf, "eh88", fact_MARKER16, (sf_count_t) (16 + 8 + 8), psf->sf.frames) ; |
| 616 | |
| 617 | psf_binheader_writef (psf, "eh8", data_MARKER16, psf->datalength + 24) ; |
| 618 | psf_fwrite (psf->header, psf->headindex, 1, psf) ; |
| 619 | |
| 620 | if (psf->error) |
| 621 | return psf->error ; |
| 622 | |
| 623 | psf->dataoffset = psf->headindex ; |
| 624 | |
| 625 | if (current > 0) |
| 626 | psf_fseek (psf, current, SEEK_SET) ; |
| 627 | |
| 628 | return psf->error ; |
| 629 | } /* w64_write_header */ |
| 630 | |
| 631 | static int |
| 632 | w64_close (SF_PRIVATE *psf) |
| 633 | { |
| 634 | if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) |
| 635 | w64_write_header (psf, SF_TRUE) ; |
| 636 | |
| 637 | return 0 ; |
| 638 | } /* w64_close */ |
| 639 | |