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[Faustine.git] / interpretor / libsndfile-1.0.25 / src / wav.c
1 /*
2 ** Copyright (C) 1999-2011 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 "wav_w64.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 data_MARKER (MAKE_MARKER ('d', 'a', 't', 'a'))
43 #define fact_MARKER (MAKE_MARKER ('f', 'a', 'c', 't'))
44 #define PEAK_MARKER (MAKE_MARKER ('P', 'E', 'A', 'K'))
45
46 #define cue_MARKER (MAKE_MARKER ('c', 'u', 'e', ' '))
47 #define LIST_MARKER (MAKE_MARKER ('L', 'I', 'S', 'T'))
48 #define slnt_MARKER (MAKE_MARKER ('s', 'l', 'n', 't'))
49 #define wavl_MARKER (MAKE_MARKER ('w', 'a', 'v', 'l'))
50 #define INFO_MARKER (MAKE_MARKER ('I', 'N', 'F', 'O'))
51 #define plst_MARKER (MAKE_MARKER ('p', 'l', 's', 't'))
52 #define adtl_MARKER (MAKE_MARKER ('a', 'd', 't', 'l'))
53 #define labl_MARKER (MAKE_MARKER ('l', 'a', 'b', 'l'))
54 #define ltxt_MARKER (MAKE_MARKER ('l', 't', 'x', 't'))
55 #define note_MARKER (MAKE_MARKER ('n', 'o', 't', 'e'))
56 #define smpl_MARKER (MAKE_MARKER ('s', 'm', 'p', 'l'))
57 #define bext_MARKER (MAKE_MARKER ('b', 'e', 'x', 't'))
58 #define iXML_MARKER (MAKE_MARKER ('i', 'X', 'M', 'L'))
59 #define levl_MARKER (MAKE_MARKER ('l', 'e', 'v', 'l'))
60 #define MEXT_MARKER (MAKE_MARKER ('M', 'E', 'X', 'T'))
61 #define DISP_MARKER (MAKE_MARKER ('D', 'I', 'S', 'P'))
62 #define acid_MARKER (MAKE_MARKER ('a', 'c', 'i', 'd'))
63 #define strc_MARKER (MAKE_MARKER ('s', 't', 'r', 'c'))
64 #define PAD_MARKER (MAKE_MARKER ('P', 'A', 'D', ' '))
65 #define afsp_MARKER (MAKE_MARKER ('a', 'f', 's', 'p'))
66 #define clm_MARKER (MAKE_MARKER ('c', 'l', 'm', ' '))
67 #define elmo_MARKER (MAKE_MARKER ('e', 'l', 'm', 'o'))
68 #define cart_MARKER (MAKE_MARKER ('c', 'a', 'r', 't'))
69 #define FLLR_MARKER (MAKE_MARKER ('F', 'L', 'L', 'R'))
70
71 #define exif_MARKER (MAKE_MARKER ('e', 'x', 'i', 'f'))
72 #define ever_MARKER (MAKE_MARKER ('e', 'v', 'e', 'r'))
73 #define etim_MARKER (MAKE_MARKER ('e', 't', 'i', 'm'))
74 #define ecor_MARKER (MAKE_MARKER ('e', 'c', 'o', 'r'))
75 #define emdl_MARKER (MAKE_MARKER ('e', 'm', 'd', 'l'))
76 #define emnt_MARKER (MAKE_MARKER ('e', 'm', 'n', 't'))
77 #define erel_MARKER (MAKE_MARKER ('e', 'r', 'e', 'l'))
78 #define eucm_MARKER (MAKE_MARKER ('e', 'u', 'c', 'm'))
79
80 #define ISFT_MARKER (MAKE_MARKER ('I', 'S', 'F', 'T'))
81 #define ICRD_MARKER (MAKE_MARKER ('I', 'C', 'R', 'D'))
82 #define ICOP_MARKER (MAKE_MARKER ('I', 'C', 'O', 'P'))
83 #define IARL_MARKER (MAKE_MARKER ('I', 'A', 'R', 'L'))
84 #define IART_MARKER (MAKE_MARKER ('I', 'A', 'R', 'T'))
85 #define INAM_MARKER (MAKE_MARKER ('I', 'N', 'A', 'M'))
86 #define IENG_MARKER (MAKE_MARKER ('I', 'E', 'N', 'G'))
87 #define IGNR_MARKER (MAKE_MARKER ('I', 'G', 'N', 'R'))
88 #define ICOP_MARKER (MAKE_MARKER ('I', 'C', 'O', 'P'))
89 #define IPRD_MARKER (MAKE_MARKER ('I', 'P', 'R', 'D'))
90 #define ISRC_MARKER (MAKE_MARKER ('I', 'S', 'R', 'C'))
91 #define ISBJ_MARKER (MAKE_MARKER ('I', 'S', 'B', 'J'))
92 #define ICMT_MARKER (MAKE_MARKER ('I', 'C', 'M', 'T'))
93
94 /* Weird WAVPACK marker which can show up at the start of the DATA section. */
95 #define wvpk_MARKER (MAKE_MARKER ('w', 'v', 'p', 'k'))
96 #define OggS_MARKER (MAKE_MARKER ('O', 'g', 'g', 'S'))
97
98 #define WAV_PEAK_CHUNK_SIZE(ch) (2 * sizeof (int) + ch * (sizeof (float) + sizeof (int)))
99 #define WAV_BEXT_MIN_CHUNK_SIZE 602
100 #define WAV_BEXT_MAX_CHUNK_SIZE (10 * 1024)
101
102 enum
103 { HAVE_RIFF = 0x01,
104 HAVE_WAVE = 0x02,
105 HAVE_fmt = 0x04,
106 HAVE_fact = 0x08,
107 HAVE_PEAK = 0x10,
108 HAVE_data = 0x20,
109 HAVE_other = 0x80000000
110 } ;
111
112
113
114 /* known WAVEFORMATEXTENSIBLE GUIDS */
115 static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM =
116 { 0x00000001, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
117 } ;
118
119 static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM =
120 { 0x00000002, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
121 } ;
122
123 static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT =
124 { 0x00000003, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
125 } ;
126
127 static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW =
128 { 0x00000006, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
129 } ;
130
131 static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW =
132 { 0x00000007, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
133 } ;
134
135 /*
136 ** the next two are from
137 ** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html
138 */
139 static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM =
140 { 0x00000001, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
141 } ;
142
143 static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT =
144 { 0x00000003, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
145 } ;
146
147
148 #if 0
149 /* maybe interesting one day to read the following through sf_read_raw */
150 /* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */
151 static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX =
152 { 0x8312B9C2, 0x2E6E, 0x11d4, { 0xA8, 0x24, 0xDE, 0x5B, 0x96, 0xC3, 0xAB, 0x21 }
153 } ;
154 #endif
155
156 /*------------------------------------------------------------------------------
157 ** Private static functions.
158 */
159
160 static int wav_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ;
161 static int wav_write_header (SF_PRIVATE *psf, int calc_length) ;
162
163 static int wav_write_tailer (SF_PRIVATE *psf) ;
164 static void wav_write_strings (SF_PRIVATE *psf, int location) ;
165 static int wav_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
166 static int wav_close (SF_PRIVATE *psf) ;
167
168 static int wav_subchunk_parse (SF_PRIVATE *psf, int chunk) ;
169 static int exif_subchunk_parse (SF_PRIVATE *psf, unsigned int length) ;
170 static int wav_read_smpl_chunk (SF_PRIVATE *psf, unsigned int chunklen) ;
171 static int wav_read_acid_chunk (SF_PRIVATE *psf, unsigned int chunklen) ;
172
173 /*------------------------------------------------------------------------------
174 ** Public function.
175 */
176
177 int
178 wav_open (SF_PRIVATE *psf)
179 { WAV_PRIVATE * wpriv ;
180 int format, subformat, error, blockalign = 0, framesperblock = 0 ;
181
182 if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL)
183 return SFE_MALLOC_FAILED ;
184 psf->container_data = wpriv ;
185
186 wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
187 psf->str_flags = SF_STR_ALLOW_START | SF_STR_ALLOW_END ;
188
189 if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
190 { if ((error = wav_read_header (psf, &blockalign, &framesperblock)))
191 return error ;
192 } ;
193
194 subformat = SF_CODEC (psf->sf.format) ;
195
196 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
197 { if (psf->is_pipe)
198 return SFE_NO_PIPE_WRITE ;
199
200 wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
201
202 format = SF_CONTAINER (psf->sf.format) ;
203 if (format != SF_FORMAT_WAV && format != SF_FORMAT_WAVEX)
204 return SFE_BAD_OPEN_FORMAT ;
205
206 psf->blockwidth = psf->bytewidth * psf->sf.channels ;
207
208 /* RIFF WAVs are little-endian, RIFX WAVs are big-endian, default to little */
209 psf->endian = SF_ENDIAN (psf->sf.format) ;
210 if (CPU_IS_BIG_ENDIAN && psf->endian == SF_ENDIAN_CPU)
211 psf->endian = SF_ENDIAN_BIG ;
212 else if (psf->endian != SF_ENDIAN_BIG)
213 psf->endian = SF_ENDIAN_LITTLE ;
214
215 if (psf->file.mode != SFM_RDWR || psf->filelength < 44)
216 { psf->filelength = 0 ;
217 psf->datalength = 0 ;
218 psf->dataoffset = 0 ;
219 psf->sf.frames = 0 ;
220 } ;
221
222 if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM)
223 { blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
224 framesperblock = -1 ; /* Corrected later. */
225 } ;
226
227 /* By default, add the peak chunk to floating point files. Default behaviour
228 ** can be switched off using sf_command (SFC_SET_PEAK_CHUNK, SF_FALSE).
229 */
230 if (psf->file.mode == SFM_WRITE && (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE))
231 { if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
232 return SFE_MALLOC_FAILED ;
233 psf->peak_info->peak_loc = SF_PEAK_START ;
234 } ;
235
236 psf->write_header = wav_write_header ;
237 } ;
238
239 psf->container_close = wav_close ;
240 psf->command = wav_command ;
241
242 switch (subformat)
243 { case SF_FORMAT_PCM_U8 :
244 case SF_FORMAT_PCM_16 :
245 case SF_FORMAT_PCM_24 :
246 case SF_FORMAT_PCM_32 :
247 error = pcm_init (psf) ;
248 break ;
249
250 case SF_FORMAT_ULAW :
251 error = ulaw_init (psf) ;
252 break ;
253
254 case SF_FORMAT_ALAW :
255 error = alaw_init (psf) ;
256 break ;
257
258 /* Lite remove start */
259 case SF_FORMAT_FLOAT :
260 error = float32_init (psf) ;
261 break ;
262
263 case SF_FORMAT_DOUBLE :
264 error = double64_init (psf) ;
265 break ;
266
267 case SF_FORMAT_IMA_ADPCM :
268 error = wav_w64_ima_init (psf, blockalign, framesperblock) ;
269 break ;
270
271 case SF_FORMAT_MS_ADPCM :
272 error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ;
273 break ;
274
275 case SF_FORMAT_G721_32 :
276 error = g72x_init (psf) ;
277 break ;
278 /* Lite remove end */
279
280 case SF_FORMAT_GSM610 :
281 error = gsm610_init (psf) ;
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 { WAV_PRIVATE *wpriv ;
300 WAV_FMT *wav_fmt ;
301 FACT_CHUNK fact_chunk ;
302 unsigned dword = 0, marker, RIFFsize = 0, done = 0 ;
303 int parsestage = 0, error, format = 0 ;
304 char *cptr ;
305
306 if (psf->filelength > SF_PLATFORM_S64 (0xffffffff))
307 psf_log_printf (psf, "Warning : filelength > 0xffffffff. This is bad!!!!\n") ;
308
309 if ((wpriv = psf->container_data) == NULL)
310 return SFE_INTERNAL ;
311 wav_fmt = &wpriv->wav_fmt ;
312
313 /* Set position to start of file to begin reading header. */
314 psf_binheader_readf (psf, "p", 0) ;
315
316 while (! done)
317 { psf_binheader_readf (psf, "m", &marker) ;
318
319 switch (marker)
320 { case RIFF_MARKER :
321 case RIFX_MARKER :
322 if (parsestage)
323 return SFE_WAV_NO_RIFF ;
324
325 parsestage |= HAVE_RIFF ;
326
327 /* RIFX signifies big-endian format for all header and data
328 ** to prevent lots of code copying here, we'll set the psf->rwf_endian
329 ** flag once here, and never specify endian-ness for all other header ops
330 */
331 if (marker == RIFF_MARKER)
332 psf->rwf_endian = SF_ENDIAN_LITTLE ;
333 else
334 psf->rwf_endian = SF_ENDIAN_BIG ;
335
336 psf_binheader_readf (psf, "4", &RIFFsize) ;
337
338 if (psf->fileoffset > 0 && psf->filelength > RIFFsize + 8)
339 { /* Set file length. */
340 psf->filelength = RIFFsize + 8 ;
341 if (marker == RIFF_MARKER)
342 psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ;
343 else
344 psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ;
345 }
346 else if (psf->filelength < RIFFsize + 2 * SIGNED_SIZEOF (dword))
347 { if (marker == RIFF_MARKER)
348 psf_log_printf (psf, "RIFF : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (dword)) ;
349 else
350 psf_log_printf (psf, "RIFX : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (dword)) ;
351
352 RIFFsize = dword ;
353 }
354 else
355 { if (marker == RIFF_MARKER)
356 psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ;
357 else
358 psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ;
359 } ;
360 break ;
361
362 case WAVE_MARKER :
363 if ((parsestage & HAVE_RIFF) != HAVE_RIFF)
364 return SFE_WAV_NO_WAVE ;
365 parsestage |= HAVE_WAVE ;
366
367 psf_log_printf (psf, "WAVE\n") ;
368 break ;
369
370 case fmt_MARKER :
371 if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
372 return SFE_WAV_NO_FMT ;
373
374 /* If this file has a SECOND fmt chunk, I don't want to know about it. */
375 if (parsestage & HAVE_fmt)
376 break ;
377
378 parsestage |= HAVE_fmt ;
379
380 psf_binheader_readf (psf, "4", &dword) ;
381 psf_log_printf (psf, "fmt : %d\n", dword) ;
382
383 if ((error = wav_w64_read_fmt_chunk (psf, dword)))
384 return error ;
385
386 format = wav_fmt->format ;
387 break ;
388
389 case data_MARKER :
390 if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
391 return SFE_WAV_NO_DATA ;
392
393 if (psf->file.mode == SFM_RDWR && (parsestage & HAVE_other) != 0)
394 return SFE_RDWR_BAD_HEADER ;
395
396 parsestage |= HAVE_data ;
397
398 psf_binheader_readf (psf, "4", &dword) ;
399
400 psf->datalength = dword ;
401 psf->dataoffset = psf_ftell (psf) ;
402
403 if (psf->dataoffset > 0)
404 { if (dword == 0 && RIFFsize == 8 && psf->filelength > 44)
405 { psf_log_printf (psf, "*** Looks like a WAV file which wasn't closed properly. Fixing it.\n") ;
406 psf->datalength = psf->filelength - psf->dataoffset ;
407 } ;
408
409 if (psf->datalength > psf->filelength - psf->dataoffset)
410 { psf_log_printf (psf, "data : %D (should be %D)\n", psf->datalength, psf->filelength - psf->dataoffset) ;
411 psf->datalength = psf->filelength - psf->dataoffset ;
412 }
413 else
414 psf_log_printf (psf, "data : %D\n", psf->datalength) ;
415
416 /* Only set dataend if there really is data at the end. */
417 if (psf->datalength + psf->dataoffset < psf->filelength)
418 psf->dataend = psf->datalength + psf->dataoffset ;
419
420 if (format == WAVE_FORMAT_MS_ADPCM && psf->datalength % 2)
421 { psf->datalength ++ ;
422 psf_log_printf (psf, "*** Data length odd. Increasing it by 1.\n") ;
423 } ;
424 } ;
425
426 if (! psf->sf.seekable || psf->dataoffset < 0)
427 break ;
428
429 /* Seek past data and continue reading header. */
430 psf_fseek (psf, psf->datalength, SEEK_CUR) ;
431
432 if (psf_ftell (psf) != psf->datalength + psf->dataoffset)
433 psf_log_printf (psf, "*** psf_fseek past end error ***\n") ;
434 break ;
435
436 case fact_MARKER :
437 if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
438 return SFE_WAV_BAD_FACT ;
439
440 parsestage |= HAVE_fact ;
441
442 if ((parsestage & HAVE_fmt) != HAVE_fmt)
443 psf_log_printf (psf, "*** Should have 'fmt ' chunk before 'fact'\n") ;
444
445 psf_binheader_readf (psf, "44", &dword, & (fact_chunk.frames)) ;
446
447 if (dword > SIGNED_SIZEOF (fact_chunk))
448 psf_binheader_readf (psf, "j", (int) (dword - SIGNED_SIZEOF (fact_chunk))) ;
449
450 if (dword)
451 psf_log_printf (psf, "%M : %d\n", marker, dword) ;
452 else
453 psf_log_printf (psf, "%M : %d (should not be zero)\n", marker, dword) ;
454
455 psf_log_printf (psf, " frames : %d\n", fact_chunk.frames) ;
456 break ;
457
458 case PEAK_MARKER :
459 if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
460 return SFE_WAV_PEAK_B4_FMT ;
461
462 parsestage |= HAVE_PEAK ;
463
464 psf_binheader_readf (psf, "4", &dword) ;
465
466 psf_log_printf (psf, "%M : %d\n", marker, dword) ;
467 if (dword != WAV_PEAK_CHUNK_SIZE (psf->sf.channels))
468 { psf_binheader_readf (psf, "j", dword) ;
469 psf_log_printf (psf, "*** File PEAK chunk size doesn't fit with number of channels (%d).\n", psf->sf.channels) ;
470 return SFE_WAV_BAD_PEAK ;
471 } ;
472
473 if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
474 return SFE_MALLOC_FAILED ;
475
476 /* read in rest of PEAK chunk. */
477 psf_binheader_readf (psf, "44", & (psf->peak_info->version), & (psf->peak_info->timestamp)) ;
478
479 if (psf->peak_info->version != 1)
480 psf_log_printf (psf, " version : %d *** (should be version 1)\n", psf->peak_info->version) ;
481 else
482 psf_log_printf (psf, " version : %d\n", psf->peak_info->version) ;
483
484 psf_log_printf (psf, " time stamp : %d\n", psf->peak_info->timestamp) ;
485 psf_log_printf (psf, " Ch Position Value\n") ;
486
487 cptr = psf->u.cbuf ;
488 for (dword = 0 ; dword < (unsigned) psf->sf.channels ; dword++)
489 { float value ;
490 unsigned int position ;
491
492 psf_binheader_readf (psf, "f4", &value, &position) ;
493 psf->peak_info->peaks [dword].value = value ;
494 psf->peak_info->peaks [dword].position = position ;
495
496 snprintf (cptr, sizeof (psf->u.cbuf), " %2d %-12" PRId64 " %g\n",
497 dword, psf->peak_info->peaks [dword].position, psf->peak_info->peaks [dword].value) ;
498 cptr [sizeof (psf->u.cbuf) - 1] = 0 ;
499 psf_log_printf (psf, "%s", cptr) ;
500 } ;
501
502 psf->peak_info->peak_loc = ((parsestage & HAVE_data) == 0) ? SF_PEAK_START : SF_PEAK_END ;
503 break ;
504
505 case cue_MARKER :
506 parsestage |= HAVE_other ;
507
508 { unsigned bytesread, cue_count ;
509 int id, position, chunk_id, chunk_start, block_start, offset ;
510
511 bytesread = psf_binheader_readf (psf, "44", &dword, &cue_count) ;
512 bytesread -= 4 ; /* Remove bytes for first dword. */
513 psf_log_printf (psf, "%M : %u\n", marker, dword) ;
514
515 if (cue_count > 10)
516 { psf_log_printf (psf, " Count : %d (skipping)\n", cue_count) ;
517 psf_binheader_readf (psf, "j", cue_count * 24) ;
518 break ;
519 } ;
520
521 psf_log_printf (psf, " Count : %d\n", cue_count) ;
522
523 while (cue_count)
524 { bytesread += psf_binheader_readf (psf, "444444", &id, &position,
525 &chunk_id, &chunk_start, &block_start, &offset) ;
526 psf_log_printf (psf, " Cue ID : %2d"
527 " Pos : %5u Chunk : %M"
528 " Chk Start : %d Blk Start : %d"
529 " Offset : %5d\n",
530 id, position, chunk_id, chunk_start, block_start, offset) ;
531 cue_count -- ;
532 } ;
533
534 if (bytesread != dword)
535 { psf_log_printf (psf, "**** Chunk size weirdness (%d != %d)\n", dword, bytesread) ;
536 psf_binheader_readf (psf, "j", dword - bytesread) ;
537 } ;
538 } ;
539 break ;
540
541 case smpl_MARKER :
542 parsestage |= HAVE_other ;
543
544 psf_binheader_readf (psf, "4", &dword) ;
545 psf_log_printf (psf, "smpl : %u\n", dword) ;
546
547 if ((error = wav_read_smpl_chunk (psf, dword)))
548 return error ;
549 break ;
550
551 case acid_MARKER :
552 parsestage |= HAVE_other ;
553
554 psf_binheader_readf (psf, "4", &dword) ;
555 psf_log_printf (psf, "acid : %u\n", dword) ;
556
557 if ((error = wav_read_acid_chunk (psf, dword)))
558 return error ;
559 break ;
560
561 case INFO_MARKER :
562 case LIST_MARKER :
563 parsestage |= HAVE_other ;
564
565 if ((error = wav_subchunk_parse (psf, marker)) != 0)
566 return error ;
567 break ;
568
569 case bext_MARKER :
570 /*
571 The 'bext' chunk can actually be updated, so don't need to set this.
572 parsestage |= HAVE_other ;
573 */
574 psf_binheader_readf (psf, "4", &dword) ;
575 if ((error = wav_read_bext_chunk (psf, dword)))
576 return error ;
577 break ;
578
579 case PAD_MARKER :
580 /*
581 We can eat into a 'PAD ' chunk if we need to.
582 parsestage |= HAVE_other ;
583 */
584 psf_binheader_readf (psf, "4", &dword) ;
585 psf_log_printf (psf, "%M : %u\n", marker, dword) ;
586 dword += (dword & 1) ;
587 psf_binheader_readf (psf, "j", dword) ;
588 break ;
589
590 case iXML_MARKER : /* See http://en.wikipedia.org/wiki/IXML */
591 case strc_MARKER : /* Multiple of 32 bytes. */
592 case afsp_MARKER :
593 case clm_MARKER :
594 case elmo_MARKER :
595 case cart_MARKER :
596 case levl_MARKER :
597 case plst_MARKER :
598 case DISP_MARKER :
599 case MEXT_MARKER :
600 case FLLR_MARKER :
601 psf_binheader_readf (psf, "4", &dword) ;
602 psf_log_printf (psf, "%M : %u\n", marker, dword) ;
603 dword += (dword & 1) ;
604 psf_binheader_readf (psf, "j", dword) ;
605 break ;
606
607 default :
608 if (psf_isprint ((marker >> 24) & 0xFF) && psf_isprint ((marker >> 16) & 0xFF)
609 && psf_isprint ((marker >> 8) & 0xFF) && psf_isprint (marker & 0xFF))
610 { psf_binheader_readf (psf, "4", &dword) ;
611 psf_log_printf (psf, "*** %M : %d (unknown marker)\n", marker, dword) ;
612 psf_binheader_readf (psf, "j", dword) ;
613 break ;
614 } ;
615 if (psf_ftell (psf) & 0x03)
616 { psf_log_printf (psf, " Unknown chunk marker at position %d. Resynching.\n", dword - 4) ;
617 psf_binheader_readf (psf, "j", -3) ;
618 /* File is too messed up so we prevent editing in RDWR mode here. */
619 parsestage |= HAVE_other ;
620 break ;
621 } ;
622 psf_log_printf (psf, "*** Unknown chunk marker (%X) at position %D. Exiting parser.\n", marker, psf_ftell (psf) - 4) ;
623 done = SF_TRUE ;
624 break ;
625 } ; /* switch (dword) */
626
627 if (! psf->sf.seekable && (parsestage & HAVE_data))
628 break ;
629
630 if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (dword))
631 { psf_log_printf (psf, "End\n") ;
632 break ;
633 } ;
634 } ; /* while (1) */
635
636 if (psf->dataoffset <= 0)
637 return SFE_WAV_NO_DATA ;
638
639 /* WAVs can be little or big endian */
640 psf->endian = psf->rwf_endian ;
641
642 psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
643
644 if (psf->is_pipe == 0)
645 { /*
646 ** Check for 'wvpk' at the start of the DATA section. Not able to
647 ** handle this.
648 */
649 psf_binheader_readf (psf, "4", &marker) ;
650 if (marker == wvpk_MARKER || marker == OggS_MARKER)
651 return SFE_WAV_WVPK_DATA ;
652 } ;
653
654 /* Seek to start of DATA section. */
655 psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
656
657 if (psf->blockwidth)
658 { if (psf->filelength - psf->dataoffset < psf->datalength)
659 psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ;
660 else
661 psf->sf.frames = psf->datalength / psf->blockwidth ;
662 } ;
663
664 switch (format)
665 { case WAVE_FORMAT_EXTENSIBLE :
666 if (psf->sf.format == (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM))
667 { *blockalign = wav_fmt->msadpcm.blockalign ;
668 *framesperblock = wav_fmt->msadpcm.samplesperblock ;
669 } ;
670 break ;
671
672 case WAVE_FORMAT_PCM :
673 psf->sf.format = SF_FORMAT_WAV | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
674 break ;
675
676 case WAVE_FORMAT_MULAW :
677 case IBM_FORMAT_MULAW :
678 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ULAW) ;
679 break ;
680
681 case WAVE_FORMAT_ALAW :
682 case IBM_FORMAT_ALAW :
683 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ALAW) ;
684 break ;
685
686 case WAVE_FORMAT_MS_ADPCM :
687 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM) ;
688 *blockalign = wav_fmt->msadpcm.blockalign ;
689 *framesperblock = wav_fmt->msadpcm.samplesperblock ;
690 break ;
691
692 case WAVE_FORMAT_IMA_ADPCM :
693 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM) ;
694 *blockalign = wav_fmt->ima.blockalign ;
695 *framesperblock = wav_fmt->ima.samplesperblock ;
696 break ;
697
698 case WAVE_FORMAT_GSM610 :
699 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_GSM610) ;
700 break ;
701
702 case WAVE_FORMAT_IEEE_FLOAT :
703 psf->sf.format = SF_FORMAT_WAV ;
704 psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ;
705 break ;
706
707 case WAVE_FORMAT_G721_ADPCM :
708 psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_G721_32 ;
709 break ;
710
711 default : return SFE_UNIMPLEMENTED ;
712 } ;
713
714 if (wpriv->fmt_is_broken)
715 wav_w64_analyze (psf) ;
716
717 /* Only set the format endian-ness if its non-standard big-endian. */
718 if (psf->endian == SF_ENDIAN_BIG)
719 psf->sf.format |= SF_ENDIAN_BIG ;
720
721 return 0 ;
722 } /* wav_read_header */
723
724 static int
725 wav_write_fmt_chunk (SF_PRIVATE *psf)
726 { int subformat, fmt_size, add_fact_chunk = 0 ;
727
728 subformat = SF_CODEC (psf->sf.format) ;
729
730 switch (subformat)
731 { case SF_FORMAT_PCM_U8 :
732 case SF_FORMAT_PCM_16 :
733 case SF_FORMAT_PCM_24 :
734 case SF_FORMAT_PCM_32 :
735 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
736
737 /* fmt : format, channels, samplerate */
738 psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_PCM, psf->sf.channels, psf->sf.samplerate) ;
739 /* fmt : bytespersec */
740 psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
741 /* fmt : blockalign, bitwidth */
742 psf_binheader_writef (psf, "22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ;
743 break ;
744
745 case SF_FORMAT_FLOAT :
746 case SF_FORMAT_DOUBLE :
747 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
748
749 /* fmt : format, channels, samplerate */
750 psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_IEEE_FLOAT, psf->sf.channels, psf->sf.samplerate) ;
751 /* fmt : bytespersec */
752 psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
753 /* fmt : blockalign, bitwidth */
754 psf_binheader_writef (psf, "22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ;
755
756 add_fact_chunk = SF_TRUE ;
757 break ;
758
759 case SF_FORMAT_ULAW :
760 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ;
761
762 /* fmt : format, channels, samplerate */
763 psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_MULAW, psf->sf.channels, psf->sf.samplerate) ;
764 /* fmt : bytespersec */
765 psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
766 /* fmt : blockalign, bitwidth, extrabytes */
767 psf_binheader_writef (psf, "222", psf->bytewidth * psf->sf.channels, 8, 0) ;
768
769 add_fact_chunk = SF_TRUE ;
770 break ;
771
772 case SF_FORMAT_ALAW :
773 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ;
774
775 /* fmt : format, channels, samplerate */
776 psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_ALAW, psf->sf.channels, psf->sf.samplerate) ;
777 /* fmt : bytespersec */
778 psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
779 /* fmt : blockalign, bitwidth, extrabytes */
780 psf_binheader_writef (psf, "222", psf->bytewidth * psf->sf.channels, 8, 0) ;
781
782 add_fact_chunk = SF_TRUE ;
783 break ;
784
785 /* Lite remove start */
786 case SF_FORMAT_IMA_ADPCM :
787 { int blockalign, framesperblock, bytespersec ;
788
789 blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
790 framesperblock = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ;
791 bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
792
793 /* fmt chunk. */
794 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
795
796 /* fmt : size, WAV format type, channels, samplerate, bytespersec */
797 psf_binheader_writef (psf, "42244", fmt_size, WAVE_FORMAT_IMA_ADPCM,
798 psf->sf.channels, psf->sf.samplerate, bytespersec) ;
799
800 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
801 psf_binheader_writef (psf, "2222", blockalign, 4, 2, framesperblock) ;
802 } ;
803
804 add_fact_chunk = SF_TRUE ;
805 break ;
806
807 case SF_FORMAT_MS_ADPCM :
808 { int blockalign, framesperblock, bytespersec, extrabytes ;
809
810 blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
811 framesperblock = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ;
812 bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
813
814 /* fmt chunk. */
815 extrabytes = 2 + 2 + MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ;
816 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ;
817
818 /* fmt : size, WAV format type, channels. */
819 psf_binheader_writef (psf, "422", fmt_size, WAVE_FORMAT_MS_ADPCM, psf->sf.channels) ;
820
821 /* fmt : samplerate, bytespersec. */
822 psf_binheader_writef (psf, "44", psf->sf.samplerate, bytespersec) ;
823
824 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
825 psf_binheader_writef (psf, "22222", blockalign, 4, extrabytes, framesperblock, 7) ;
826
827 msadpcm_write_adapt_coeffs (psf) ;
828 } ;
829
830 add_fact_chunk = SF_TRUE ;
831 break ;
832
833
834 case SF_FORMAT_G721_32 :
835 /* fmt chunk. */
836 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
837
838 /* fmt : size, WAV format type, channels, samplerate, bytespersec */
839 psf_binheader_writef (psf, "42244", fmt_size, WAVE_FORMAT_G721_ADPCM,
840 psf->sf.channels, psf->sf.samplerate, psf->sf.samplerate * psf->sf.channels / 2) ;
841
842 /* fmt : blockalign, bitwidth, extrabytes, auxblocksize. */
843 psf_binheader_writef (psf, "2222", 64, 4, 2, 0) ;
844
845 add_fact_chunk = SF_TRUE ;
846 break ;
847
848 /* Lite remove end */
849
850 case SF_FORMAT_GSM610 :
851 { int blockalign, framesperblock, bytespersec ;
852
853 blockalign = WAV_W64_GSM610_BLOCKSIZE ;
854 framesperblock = WAV_W64_GSM610_SAMPLES ;
855 bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
856
857 /* fmt chunk. */
858 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
859
860 /* fmt : size, WAV format type, channels. */
861 psf_binheader_writef (psf, "422", fmt_size, WAVE_FORMAT_GSM610, psf->sf.channels) ;
862
863 /* fmt : samplerate, bytespersec. */
864 psf_binheader_writef (psf, "44", psf->sf.samplerate, bytespersec) ;
865
866 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
867 psf_binheader_writef (psf, "2222", blockalign, 0, 2, framesperblock) ;
868 } ;
869
870 add_fact_chunk = SF_TRUE ;
871 break ;
872
873 default : return SFE_UNIMPLEMENTED ;
874 } ;
875
876 if (add_fact_chunk)
877 psf_binheader_writef (psf, "tm48", fact_MARKER, 4, psf->sf.frames) ;
878
879 return 0 ;
880 } /* wav_write_fmt_chunk */
881
882 static int
883 wavex_write_fmt_chunk (SF_PRIVATE *psf)
884 { WAV_PRIVATE *wpriv ;
885 int subformat, fmt_size, add_fact_chunk = 0 ;
886
887 if ((wpriv = psf->container_data) == NULL)
888 return SFE_INTERNAL ;
889
890 subformat = SF_CODEC (psf->sf.format) ;
891
892 /* initial section (same for all, it appears) */
893 switch (subformat)
894 { case SF_FORMAT_PCM_U8 :
895 case SF_FORMAT_PCM_16 :
896 case SF_FORMAT_PCM_24 :
897 case SF_FORMAT_PCM_32 :
898 case SF_FORMAT_FLOAT :
899 case SF_FORMAT_DOUBLE :
900 case SF_FORMAT_ULAW :
901 case SF_FORMAT_ALAW :
902 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 + 4 + 4 + 2 + 2 + 8 ;
903
904 /* fmt : format, channels, samplerate */
905 psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_EXTENSIBLE, psf->sf.channels, psf->sf.samplerate) ;
906 /* fmt : bytespersec */
907 psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
908 /* fmt : blockalign, bitwidth */
909 psf_binheader_writef (psf, "22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ;
910
911 /* cbSize 22 is sizeof (WAVEFORMATEXTENSIBLE) - sizeof (WAVEFORMATEX) */
912 psf_binheader_writef (psf, "2", 22) ;
913
914 /* wValidBitsPerSample, for our use same as bitwidth as we use it fully */
915 psf_binheader_writef (psf, "2", psf->bytewidth * 8) ;
916
917 /* For an Ambisonic file set the channel mask to zero.
918 ** Otherwise use a default based on the channel count.
919 */
920 if (wpriv->wavex_ambisonic != SF_AMBISONIC_NONE)
921 psf_binheader_writef (psf, "4", 0) ;
922 else if (wpriv->wavex_channelmask != 0)
923 psf_binheader_writef (psf, "4", wpriv->wavex_channelmask) ;
924 else
925 { /*
926 ** Ok some liberty is taken here to use the most commonly used channel masks
927 ** instead of "no mapping". If you really want to use "no mapping" for 8 channels and less
928 ** please don't use wavex. (otherwise we'll have to create a new SF_COMMAND)
929 */
930 switch (psf->sf.channels)
931 { case 1 : /* center channel mono */
932 psf_binheader_writef (psf, "4", 0x4) ;
933 break ;
934
935 case 2 : /* front left and right */
936 psf_binheader_writef (psf, "4", 0x1 | 0x2) ;
937 break ;
938
939 case 4 : /* Quad */
940 psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x10 | 0x20) ;
941 break ;
942
943 case 6 : /* 5.1 */
944 psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20) ;
945 break ;
946
947 case 8 : /* 7.1 */
948 psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20 | 0x40 | 0x80) ;
949 break ;
950
951 default : /* 0 when in doubt , use direct out, ie NO mapping*/
952 psf_binheader_writef (psf, "4", 0x0) ;
953 break ;
954 } ;
955 } ;
956 break ;
957
958 case SF_FORMAT_MS_ADPCM : /* Todo, GUID exists might have different header as per wav_write_header */
959 default :
960 return SFE_UNIMPLEMENTED ;
961 } ;
962
963 /* GUID section, different for each */
964
965 switch (subformat)
966 { case SF_FORMAT_PCM_U8 :
967 case SF_FORMAT_PCM_16 :
968 case SF_FORMAT_PCM_24 :
969 case SF_FORMAT_PCM_32 :
970 wavex_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ?
971 &MSGUID_SUBTYPE_PCM : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM) ;
972 break ;
973
974 case SF_FORMAT_FLOAT :
975 case SF_FORMAT_DOUBLE :
976 wavex_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ?
977 &MSGUID_SUBTYPE_IEEE_FLOAT : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT) ;
978 add_fact_chunk = SF_TRUE ;
979 break ;
980
981 case SF_FORMAT_ULAW :
982 wavex_write_guid (psf, &MSGUID_SUBTYPE_MULAW) ;
983 add_fact_chunk = SF_TRUE ;
984 break ;
985
986 case SF_FORMAT_ALAW :
987 wavex_write_guid (psf, &MSGUID_SUBTYPE_ALAW) ;
988 add_fact_chunk = SF_TRUE ;
989 break ;
990
991 #if 0
992 /* This is dead code due to return in previous switch statement. */
993 case SF_FORMAT_MS_ADPCM : /* todo, GUID exists */
994 wavex_write_guid (psf, &MSGUID_SUBTYPE_MS_ADPCM) ;
995 add_fact_chunk = SF_TRUE ;
996 break ;
997 return SFE_UNIMPLEMENTED ;
998 #endif
999
1000 default : return SFE_UNIMPLEMENTED ;
1001 } ;
1002
1003 if (add_fact_chunk)
1004 psf_binheader_writef (psf, "tm48", fact_MARKER, 4, psf->sf.frames) ;
1005
1006 return 0 ;
1007 } /* wavex_write_fmt_chunk */
1008
1009
1010 static int
1011 wav_write_header (SF_PRIVATE *psf, int calc_length)
1012 { sf_count_t current ;
1013 int k, error, has_data = SF_FALSE ;
1014
1015 current = psf_ftell (psf) ;
1016
1017 if (current > psf->dataoffset)
1018 has_data = SF_TRUE ;
1019
1020 if (calc_length)
1021 { psf->filelength = psf_get_filelen (psf) ;
1022
1023 psf->datalength = psf->filelength - psf->dataoffset ;
1024
1025 if (psf->dataend)
1026 psf->datalength -= psf->filelength - psf->dataend ;
1027
1028 if (psf->bytewidth > 0)
1029 psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ;
1030 } ;
1031
1032 /* Reset the current header length to zero. */
1033 psf->header [0] = 0 ;
1034 psf->headindex = 0 ;
1035 psf_fseek (psf, 0, SEEK_SET) ;
1036
1037 /*
1038 ** RIFX signifies big-endian format for all header and data.
1039 ** To prevent lots of code copying here, we'll set the psf->rwf_endian flag
1040 ** once here, and never specify endian-ness for all other header operations.
1041 */
1042
1043 /* RIFF/RIFX marker, length, WAVE and 'fmt ' markers. */
1044
1045 if (psf->endian == SF_ENDIAN_LITTLE)
1046 psf_binheader_writef (psf, "etm8", RIFF_MARKER, (psf->filelength < 8) ? 8 : psf->filelength - 8) ;
1047 else
1048 psf_binheader_writef (psf, "Etm8", RIFX_MARKER, (psf->filelength < 8) ? 8 : psf->filelength - 8) ;
1049
1050 /* WAVE and 'fmt ' markers. */
1051 psf_binheader_writef (psf, "mm", WAVE_MARKER, fmt_MARKER) ;
1052
1053 /* Write the 'fmt ' chunk. */
1054 switch (SF_CONTAINER (psf->sf.format))
1055 { case SF_FORMAT_WAV :
1056 if ((error = wav_write_fmt_chunk (psf)) != 0)
1057 return error ;
1058 break ;
1059
1060 case SF_FORMAT_WAVEX :
1061 if ((error = wavex_write_fmt_chunk (psf)) != 0)
1062 return error ;
1063 break ;
1064
1065 default :
1066 return SFE_UNIMPLEMENTED ;
1067 } ;
1068
1069 /* The LIST/INFO chunk. */
1070 if (psf->str_flags & SF_STR_LOCATE_START)
1071 wav_write_strings (psf, SF_STR_LOCATE_START) ;
1072
1073 if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_START)
1074 { psf_binheader_writef (psf, "m4", PEAK_MARKER, WAV_PEAK_CHUNK_SIZE (psf->sf.channels)) ;
1075 psf_binheader_writef (psf, "44", 1, time (NULL)) ;
1076 for (k = 0 ; k < psf->sf.channels ; k++)
1077 psf_binheader_writef (psf, "ft8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ;
1078 } ;
1079
1080 if (psf->broadcast_16k != NULL)
1081 wav_write_bext_chunk (psf) ;
1082
1083 if (psf->instrument != NULL)
1084 { int tmp ;
1085 double dtune = (double) (0x40000000) / 25.0 ;
1086
1087 psf_binheader_writef (psf, "m4", smpl_MARKER, 9 * 4 + psf->instrument->loop_count * 6 * 4) ;
1088 psf_binheader_writef (psf, "44", 0, 0) ; /* Manufacturer zero is everyone */
1089 tmp = (int) (1.0e9 / psf->sf.samplerate) ; /* Sample period in nano seconds */
1090 psf_binheader_writef (psf, "44", tmp, psf->instrument->basenote) ;
1091 tmp = (unsigned int) (psf->instrument->detune * dtune + 0.5) ;
1092 psf_binheader_writef (psf, "4", tmp) ;
1093 psf_binheader_writef (psf, "44", 0, 0) ; /* SMTPE format */
1094 psf_binheader_writef (psf, "44", psf->instrument->loop_count, 0) ;
1095
1096 for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++)
1097 { int type ;
1098
1099 type = psf->instrument->loops [tmp].mode ;
1100 type = (type == SF_LOOP_FORWARD ? 0 : type==SF_LOOP_BACKWARD ? 2 : type == SF_LOOP_ALTERNATING ? 1 : 32) ;
1101
1102 psf_binheader_writef (psf, "44", tmp, type) ;
1103 psf_binheader_writef (psf, "44", psf->instrument->loops [tmp].start, psf->instrument->loops [tmp].end - 1) ;
1104 psf_binheader_writef (psf, "44", 0, psf->instrument->loops [tmp].count) ;
1105 } ;
1106 } ;
1107
1108 if (psf->headindex + 16 < psf->dataoffset)
1109 { /* Add PAD data if necessary. */
1110 k = psf->dataoffset - (psf->headindex + 16) ;
1111 psf_binheader_writef (psf, "m4z", PAD_MARKER, k, make_size_t (k)) ;
1112 } ;
1113
1114 psf_binheader_writef (psf, "tm8", data_MARKER, psf->datalength) ;
1115 psf_fwrite (psf->header, psf->headindex, 1, psf) ;
1116 if (psf->error)
1117 return psf->error ;
1118
1119 if (has_data && psf->dataoffset != psf->headindex)
1120 { psf_log_printf (psf, "Oooops : has_data && psf->dataoffset != psf->headindex\n") ;
1121 return psf->error = SFE_INTERNAL ;
1122 } ;
1123
1124 psf->dataoffset = psf->headindex ;
1125
1126 if (! has_data)
1127 psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
1128 else if (current > 0)
1129 psf_fseek (psf, current, SEEK_SET) ;
1130
1131 return psf->error ;
1132 } /* wav_write_header */
1133
1134
1135 static int
1136 wav_write_tailer (SF_PRIVATE *psf)
1137 { int k ;
1138
1139 /* Reset the current header buffer length to zero. */
1140 psf->header [0] = 0 ;
1141 psf->headindex = 0 ;
1142
1143 if (psf->dataend > 0)
1144 psf_fseek (psf, psf->dataend, SEEK_SET) ;
1145 else
1146 psf->dataend = psf_fseek (psf, 0, SEEK_END) ;
1147
1148 /* Add a PEAK chunk if requested. */
1149 if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_END)
1150 { psf_binheader_writef (psf, "m4", PEAK_MARKER, WAV_PEAK_CHUNK_SIZE (psf->sf.channels)) ;
1151 psf_binheader_writef (psf, "44", 1, time (NULL)) ;
1152 for (k = 0 ; k < psf->sf.channels ; k++)
1153 psf_binheader_writef (psf, "f4", psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ;
1154 } ;
1155
1156 if (psf->str_flags & SF_STR_LOCATE_END)
1157 wav_write_strings (psf, SF_STR_LOCATE_END) ;
1158
1159 /* Write the tailer. */
1160 if (psf->headindex > 0)
1161 psf_fwrite (psf->header, psf->headindex, 1, psf) ;
1162
1163 return 0 ;
1164 } /* wav_write_tailer */
1165
1166 static void
1167 wav_write_strings (SF_PRIVATE *psf, int location)
1168 { int k, prev_head_index, saved_head_index ;
1169
1170 if (psf_location_string_count (psf, location) == 0)
1171 return ;
1172
1173 prev_head_index = psf->headindex + 4 ;
1174
1175 psf_binheader_writef (psf, "m4m", LIST_MARKER, 0xBADBAD, INFO_MARKER) ;
1176
1177 for (k = 0 ; k < SF_MAX_STRINGS ; k++)
1178 { if (psf->strings [k].type == 0)
1179 break ;
1180 if (psf->strings [k].type < 0 || psf->strings [k].flags != location)
1181 continue ;
1182
1183 switch (psf->strings [k].type)
1184 { case SF_STR_SOFTWARE :
1185 psf_binheader_writef (psf, "ms", ISFT_MARKER, psf->strings [k].str) ;
1186 break ;
1187
1188 case SF_STR_TITLE :
1189 psf_binheader_writef (psf, "ms", INAM_MARKER, psf->strings [k].str) ;
1190 break ;
1191
1192 case SF_STR_COPYRIGHT :
1193 psf_binheader_writef (psf, "ms", ICOP_MARKER, psf->strings [k].str) ;
1194 break ;
1195
1196 case SF_STR_ARTIST :
1197 psf_binheader_writef (psf, "ms", IART_MARKER, psf->strings [k].str) ;
1198 break ;
1199
1200 case SF_STR_COMMENT :
1201 psf_binheader_writef (psf, "ms", ICMT_MARKER, psf->strings [k].str) ;
1202 break ;
1203
1204 case SF_STR_DATE :
1205 psf_binheader_writef (psf, "ms", ICRD_MARKER, psf->strings [k].str) ;
1206 break ;
1207
1208 case SF_STR_GENRE :
1209 psf_binheader_writef (psf, "ms", IGNR_MARKER, psf->strings [k].str) ;
1210 break ;
1211
1212 default :
1213 break ;
1214 } ;
1215 } ;
1216
1217 saved_head_index = psf->headindex ;
1218 psf->headindex = prev_head_index ;
1219 psf_binheader_writef (psf, "4", saved_head_index - prev_head_index - 4) ;
1220 psf->headindex = saved_head_index ;
1221
1222 } /* wav_write_strings */
1223
1224 static int
1225 wav_close (SF_PRIVATE *psf)
1226 {
1227 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
1228 { wav_write_tailer (psf) ;
1229
1230 if (psf->file.mode == SFM_RDWR)
1231 { sf_count_t current = psf_ftell (psf) ;
1232
1233 /*
1234 ** If the mode is RDWR and the current position is less than the
1235 ** filelength, truncate the file.
1236 */
1237
1238 if (current < psf->filelength)
1239 { psf_ftruncate (psf, current) ;
1240 psf->filelength = current ;
1241 } ;
1242 } ;
1243
1244 psf->write_header (psf, SF_TRUE) ;
1245 } ;
1246
1247 return 0 ;
1248 } /* wav_close */
1249
1250 static int
1251 wav_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize)
1252 { WAV_PRIVATE *wpriv ;
1253
1254 if ((wpriv = psf->container_data) == NULL)
1255 return SFE_INTERNAL ;
1256
1257 switch (command)
1258 { case SFC_WAVEX_SET_AMBISONIC :
1259 if ((SF_CONTAINER (psf->sf.format)) == SF_FORMAT_WAVEX)
1260 { if (datasize == SF_AMBISONIC_NONE)
1261 wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
1262 else if (datasize == SF_AMBISONIC_B_FORMAT)
1263 wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ;
1264 else
1265 return 0 ;
1266 } ;
1267 return wpriv->wavex_ambisonic ;
1268
1269 case SFC_WAVEX_GET_AMBISONIC :
1270 return wpriv->wavex_ambisonic ;
1271
1272 case SFC_SET_CHANNEL_MAP_INFO :
1273 wpriv->wavex_channelmask = wavex_gen_channel_mask (psf->channel_map, psf->sf.channels) ;
1274 return (wpriv->wavex_channelmask != 0) ;
1275
1276 default :
1277 break ;
1278 } ;
1279
1280 return 0 ;
1281 } /* wav_command */
1282
1283 static int
1284 wav_subchunk_parse (SF_PRIVATE *psf, int chunk)
1285 { sf_count_t current_pos ;
1286 char *cptr ;
1287 unsigned dword, bytesread, length ;
1288
1289 current_pos = psf_fseek (psf, 0, SEEK_CUR) ;
1290
1291 bytesread = psf_binheader_readf (psf, "4", &length) ;
1292
1293 if (length <= 8)
1294 { /* This case is for broken files generated by PEAK. */
1295 psf_log_printf (psf, "%M : %d (weird length)\n", chunk, length) ;
1296 psf_binheader_readf (psf, "mj", &chunk, length - 4) ;
1297 psf_log_printf (psf, " %M\n", chunk) ;
1298 return 0 ;
1299 } ;
1300
1301 if (psf->headindex + length > SIGNED_SIZEOF (psf->header))
1302 { psf_log_printf (psf, "%M : %d (too long)\n", chunk, length) ;
1303 psf_binheader_readf (psf, "j", length) ;
1304 return 0 ;
1305 } ;
1306
1307 if (current_pos + length > psf->filelength)
1308 { psf_log_printf (psf, "%M : %d (should be %d)\n", chunk, length, (int) (psf->filelength - current_pos)) ;
1309 length = psf->filelength - current_pos ;
1310 }
1311 else
1312 psf_log_printf (psf, "%M : %d\n", chunk, length) ;
1313
1314 while (bytesread < length)
1315 { bytesread += psf_binheader_readf (psf, "m", &chunk) ;
1316
1317 switch (chunk)
1318 { case adtl_MARKER :
1319 case INFO_MARKER :
1320 /* These markers don't contain anything. */
1321 psf_log_printf (psf, " %M\n", chunk) ;
1322 break ;
1323
1324 case data_MARKER :
1325 psf_log_printf (psf, " %M inside a LIST block??? Backing out.\n", chunk) ;
1326 /* Jump back four bytes and return to caller. */
1327 psf_binheader_readf (psf, "j", -4) ;
1328 return 0 ;
1329
1330 case ISFT_MARKER :
1331 case ICOP_MARKER :
1332 case IARL_MARKER :
1333 case IART_MARKER :
1334 case ICMT_MARKER :
1335 case ICRD_MARKER :
1336 case IENG_MARKER :
1337 case IGNR_MARKER :
1338 case INAM_MARKER :
1339 case IPRD_MARKER :
1340 case ISBJ_MARKER :
1341 case ISRC_MARKER :
1342 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1343 dword += (dword & 1) ;
1344 if (dword >= SIGNED_SIZEOF (psf->u.cbuf))
1345 { psf_log_printf (psf, " *** %M : %d (too big)\n", chunk, dword) ;
1346 psf_binheader_readf (psf, "j", dword) ;
1347 break ;
1348 } ;
1349
1350 cptr = psf->u.cbuf ;
1351 psf_binheader_readf (psf, "b", cptr, dword) ;
1352 bytesread += dword ;
1353 cptr [dword] = 0 ;
1354 psf_log_printf (psf, " %M : %s\n", chunk, cptr) ;
1355 break ;
1356
1357 case labl_MARKER :
1358 { int mark_id ;
1359
1360 bytesread += psf_binheader_readf (psf, "44", &dword, &mark_id) ;
1361 dword -= 4 ;
1362 dword += (dword & 1) ;
1363 if (dword < 1 || dword >= SIGNED_SIZEOF (psf->u.cbuf))
1364 { psf_log_printf (psf, " *** %M : %d (too big)\n", chunk, dword) ;
1365 psf_binheader_readf (psf, "j", dword) ;
1366 break ;
1367 } ;
1368
1369 cptr = psf->u.cbuf ;
1370 psf_binheader_readf (psf, "b", cptr, dword) ;
1371 bytesread += dword ;
1372 cptr [dword] = 0 ;
1373 psf_log_printf (psf, " %M : %d : %s\n", chunk, mark_id, cptr) ;
1374 } ;
1375 break ;
1376
1377
1378 case DISP_MARKER :
1379 case ltxt_MARKER :
1380 case note_MARKER :
1381 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1382 dword += (dword & 1) ;
1383 psf_binheader_readf (psf, "j", dword) ;
1384 bytesread += dword ;
1385 psf_log_printf (psf, " %M : %d\n", chunk, dword) ;
1386 break ;
1387
1388 case exif_MARKER :
1389 psf_log_printf (psf, " %M\n", chunk) ;
1390 bytesread += exif_subchunk_parse (psf, length - bytesread) ;
1391 break ;
1392
1393 case 0 :
1394 /*
1395 ** Four zero bytes where a marker was expected. Assume this means
1396 ** the rest of the chunk is garbage.
1397 */
1398 psf_log_printf (psf, " *** Found weird-ass zero marker. Jumping to end of chunk.\n") ;
1399 if (bytesread < length)
1400 bytesread += psf_binheader_readf (psf, "j", length - bytesread + 4) ;
1401 psf_log_printf (psf, " *** Offset is now : 0x%X\n", psf_fseek (psf, 0, SEEK_CUR)) ;
1402 return 0 ;
1403
1404 default :
1405 psf_binheader_readf (psf, "4", &dword) ;
1406 bytesread += sizeof (dword) ;
1407 dword += (dword & 1) ;
1408 psf_binheader_readf (psf, "j", dword) ;
1409 bytesread += dword ;
1410 psf_log_printf (psf, " *** %M : %d\n", chunk, dword) ;
1411 if (dword > length)
1412 return 0 ;
1413 break ;
1414 } ;
1415
1416 switch (chunk)
1417 { case ISFT_MARKER :
1418 psf_store_string (psf, SF_STR_SOFTWARE, psf->u.cbuf) ;
1419 break ;
1420 case ICOP_MARKER :
1421 psf_store_string (psf, SF_STR_COPYRIGHT, psf->u.cbuf) ;
1422 break ;
1423 case INAM_MARKER :
1424 psf_store_string (psf, SF_STR_TITLE, psf->u.cbuf) ;
1425 break ;
1426 case IART_MARKER :
1427 psf_store_string (psf, SF_STR_ARTIST, psf->u.cbuf) ;
1428 break ;
1429 case ICMT_MARKER :
1430 psf_store_string (psf, SF_STR_COMMENT, psf->u.cbuf) ;
1431 break ;
1432 case ICRD_MARKER :
1433 psf_store_string (psf, SF_STR_DATE, psf->u.cbuf) ;
1434 break ;
1435 case IGNR_MARKER :
1436 psf_store_string (psf, SF_STR_GENRE, psf->u.cbuf) ;
1437 break ;
1438 } ;
1439 } ;
1440
1441 current_pos = psf_fseek (psf, 0, SEEK_CUR) - current_pos ;
1442
1443 if (current_pos - 4 != length)
1444 psf_log_printf (psf, "**** Bad chunk length %d sbould be %D\n", length, current_pos - 4) ;
1445
1446 return 0 ;
1447 } /* wav_subchunk_parse */
1448
1449 static int
1450 wav_read_smpl_chunk (SF_PRIVATE *psf, unsigned int chunklen)
1451 { unsigned int bytesread = 0, dword, sampler_data, loop_count ;
1452 unsigned int note, start, end, type = -1, count ;
1453 int j, k ;
1454
1455 chunklen += (chunklen & 1) ;
1456
1457 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1458 psf_log_printf (psf, " Manufacturer : %X\n", dword) ;
1459
1460 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1461 psf_log_printf (psf, " Product : %u\n", dword) ;
1462
1463 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1464 psf_log_printf (psf, " Period : %u nsec\n", dword) ;
1465
1466 bytesread += psf_binheader_readf (psf, "4", &note) ;
1467 psf_log_printf (psf, " Midi Note : %u\n", note) ;
1468
1469 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1470 if (dword != 0)
1471 { snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%f",
1472 (1.0 * 0x80000000) / ((unsigned int) dword)) ;
1473 psf_log_printf (psf, " Pitch Fract. : %s\n", psf->u.cbuf) ;
1474 }
1475 else
1476 psf_log_printf (psf, " Pitch Fract. : 0\n") ;
1477
1478 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1479 psf_log_printf (psf, " SMPTE Format : %u\n", dword) ;
1480
1481 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1482 snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%02d:%02d:%02d %02d",
1483 (dword >> 24) & 0x7F, (dword >> 16) & 0x7F, (dword >> 8) & 0x7F, dword & 0x7F) ;
1484 psf_log_printf (psf, " SMPTE Offset : %s\n", psf->u.cbuf) ;
1485
1486 bytesread += psf_binheader_readf (psf, "4", &loop_count) ;
1487 psf_log_printf (psf, " Loop Count : %u\n", loop_count) ;
1488
1489 /* Sampler Data holds the number of data bytes after the CUE chunks which
1490 ** is not actually CUE data. Display value after CUE data.
1491 */
1492 bytesread += psf_binheader_readf (psf, "4", &sampler_data) ;
1493
1494 if ((psf->instrument = psf_instrument_alloc ()) == NULL)
1495 return SFE_MALLOC_FAILED ;
1496
1497 psf->instrument->loop_count = loop_count ;
1498
1499 for (j = 0 ; loop_count > 0 && chunklen - bytesread >= 24 ; j ++)
1500 { bytesread += psf_binheader_readf (psf, "4", &dword) ;
1501 psf_log_printf (psf, " Cue ID : %2u", dword) ;
1502
1503 bytesread += psf_binheader_readf (psf, "4", &type) ;
1504 psf_log_printf (psf, " Type : %2u", type) ;
1505
1506 bytesread += psf_binheader_readf (psf, "4", &start) ;
1507 psf_log_printf (psf, " Start : %5u", start) ;
1508
1509 bytesread += psf_binheader_readf (psf, "4", &end) ;
1510 psf_log_printf (psf, " End : %5u", end) ;
1511
1512 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1513 psf_log_printf (psf, " Fraction : %5u", dword) ;
1514
1515 bytesread += psf_binheader_readf (psf, "4", &count) ;
1516 psf_log_printf (psf, " Count : %5u\n", count) ;
1517
1518 if (j < ARRAY_LEN (psf->instrument->loops))
1519 { psf->instrument->loops [j].start = start ;
1520 psf->instrument->loops [j].end = end + 1 ;
1521 psf->instrument->loops [j].count = count ;
1522
1523 switch (type)
1524 { case 0 :
1525 psf->instrument->loops [j].mode = SF_LOOP_FORWARD ;
1526 break ;
1527 case 1 :
1528 psf->instrument->loops [j].mode = SF_LOOP_ALTERNATING ;
1529 break ;
1530 case 2 :
1531 psf->instrument->loops [j].mode = SF_LOOP_BACKWARD ;
1532 break ;
1533 default:
1534 psf->instrument->loops [j].mode = SF_LOOP_NONE ;
1535 break ;
1536 } ;
1537 } ;
1538
1539 loop_count -- ;
1540 } ;
1541
1542 if (chunklen - bytesread == 0)
1543 { if (sampler_data != 0)
1544 psf_log_printf (psf, " Sampler Data : %u (should be 0)\n", sampler_data) ;
1545 else
1546 psf_log_printf (psf, " Sampler Data : %u\n", sampler_data) ;
1547 }
1548 else
1549 { if (sampler_data != chunklen - bytesread)
1550 { psf_log_printf (psf, " Sampler Data : %u (should have been %u)\n", sampler_data, chunklen - bytesread) ;
1551 sampler_data = chunklen - bytesread ;
1552 }
1553 else
1554 psf_log_printf (psf, " Sampler Data : %u\n", sampler_data) ;
1555
1556 psf_log_printf (psf, " ") ;
1557 for (k = 0 ; k < (int) sampler_data ; k++)
1558 { char ch ;
1559
1560 if (k > 0 && (k % 20) == 0)
1561 psf_log_printf (psf, "\n ") ;
1562
1563 bytesread += psf_binheader_readf (psf, "1", &ch) ;
1564 psf_log_printf (psf, "%02X ", ch & 0xFF) ;
1565 } ;
1566
1567 psf_log_printf (psf, "\n") ;
1568 } ;
1569
1570 psf->instrument->basenote = note ;
1571 psf->instrument->gain = 1 ;
1572 psf->instrument->velocity_lo = psf->instrument->key_lo = 0 ;
1573 psf->instrument->velocity_hi = psf->instrument->key_hi = 127 ;
1574
1575 return 0 ;
1576 } /* wav_read_smpl_chunk */
1577
1578 /*
1579 ** The acid chunk goes a little something like this:
1580 **
1581 ** 4 bytes 'acid'
1582 ** 4 bytes (int) length of chunk starting at next byte
1583 **
1584 ** 4 bytes (int) type of file:
1585 ** this appears to be a bit mask,however some combinations
1586 ** are probably impossible and/or qualified as "errors"
1587 **
1588 ** 0x01 On: One Shot Off: Loop
1589 ** 0x02 On: Root note is Set Off: No root
1590 ** 0x04 On: Stretch is On, Off: Strech is OFF
1591 ** 0x08 On: Disk Based Off: Ram based
1592 ** 0x10 On: ?????????? Off: ????????? (Acidizer puts that ON)
1593 **
1594 ** 2 bytes (short) root note
1595 ** if type 0x10 is OFF : [C,C#,(...),B] -> [0x30 to 0x3B]
1596 ** if type 0x10 is ON : [C,C#,(...),B] -> [0x3C to 0x47]
1597 ** (both types fit on same MIDI pitch albeit different octaves, so who cares)
1598 **
1599 ** 2 bytes (short) ??? always set to 0x8000
1600 ** 4 bytes (float) ??? seems to be always 0
1601 ** 4 bytes (int) number of beats
1602 ** 2 bytes (short) meter denominator //always 4 in SF/ACID
1603 ** 2 bytes (short) meter numerator //always 4 in SF/ACID
1604 ** //are we sure about the order?? usually its num/denom
1605 ** 4 bytes (float) tempo
1606 **
1607 */
1608
1609 static int
1610 wav_read_acid_chunk (SF_PRIVATE *psf, unsigned int chunklen)
1611 { unsigned int bytesread = 0 ;
1612 int beats, flags ;
1613 short rootnote, q1, meter_denom, meter_numer ;
1614 float q2, tempo ;
1615
1616 chunklen += (chunklen & 1) ;
1617
1618 bytesread += psf_binheader_readf (psf, "422f", &flags, &rootnote, &q1, &q2) ;
1619
1620 snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%f", q2) ;
1621
1622 psf_log_printf (psf, " Flags : 0x%04x (%s,%s,%s,%s,%s)\n", flags,
1623 (flags & 0x01) ? "OneShot" : "Loop",
1624 (flags & 0x02) ? "RootNoteValid" : "RootNoteInvalid",
1625 (flags & 0x04) ? "StretchOn" : "StretchOff",
1626 (flags & 0x08) ? "DiskBased" : "RAMBased",
1627 (flags & 0x10) ? "??On" : "??Off") ;
1628
1629 psf_log_printf (psf, " Root note : 0x%x\n ???? : 0x%04x\n ???? : %s\n",
1630 rootnote, q1, psf->u.cbuf) ;
1631
1632 bytesread += psf_binheader_readf (psf, "422f", &beats, &meter_denom, &meter_numer, &tempo) ;
1633 snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%f", tempo) ;
1634 psf_log_printf (psf, " Beats : %d\n Meter : %d/%d\n Tempo : %s\n",
1635 beats, meter_numer, meter_denom, psf->u.cbuf) ;
1636
1637 psf_binheader_readf (psf, "j", chunklen - bytesread) ;
1638
1639 if ((psf->loop_info = calloc (1, sizeof (SF_LOOP_INFO))) == NULL)
1640 return SFE_MALLOC_FAILED ;
1641
1642 psf->loop_info->time_sig_num = meter_numer ;
1643 psf->loop_info->time_sig_den = meter_denom ;
1644 psf->loop_info->loop_mode = (flags & 0x01) ? SF_LOOP_NONE : SF_LOOP_FORWARD ;
1645 psf->loop_info->num_beats = beats ;
1646 psf->loop_info->bpm = tempo ;
1647 psf->loop_info->root_key = (flags & 0x02) ? rootnote : -1 ;
1648
1649 return 0 ;
1650 } /* wav_read_acid_chunk */
1651
1652 int
1653 wav_read_bext_chunk (SF_PRIVATE *psf, unsigned int chunksize)
1654 {
1655 SF_BROADCAST_INFO_16K * b ;
1656 unsigned int bytes = 0 ;
1657
1658 if (chunksize < WAV_BEXT_MIN_CHUNK_SIZE)
1659 { psf_log_printf (psf, "bext : %u (should be >= %d)\n", chunksize, WAV_BEXT_MIN_CHUNK_SIZE) ;
1660 psf_binheader_readf (psf, "j", chunksize) ;
1661 return 0 ;
1662 } ;
1663
1664 if (chunksize > WAV_BEXT_MAX_CHUNK_SIZE)
1665 { psf_log_printf (psf, "bext : %u (should be < %d)\n", chunksize, WAV_BEXT_MAX_CHUNK_SIZE) ;
1666 psf_binheader_readf (psf, "j", chunksize) ;
1667 return 0 ;
1668 } ;
1669
1670 if (chunksize >= sizeof (SF_BROADCAST_INFO_16K))
1671 { psf_log_printf (psf, "bext : %u too big to be handled\n", chunksize) ;
1672 psf_binheader_readf (psf, "j", chunksize) ;
1673 return 0 ;
1674 } ;
1675
1676 psf_log_printf (psf, "bext : %u\n", chunksize) ;
1677
1678 if ((psf->broadcast_16k = broadcast_var_alloc ()) == NULL)
1679 { psf->error = SFE_MALLOC_FAILED ;
1680 return psf->error ;
1681 } ;
1682
1683 b = psf->broadcast_16k ;
1684
1685 bytes += psf_binheader_readf (psf, "b", b->description, sizeof (b->description)) ;
1686 bytes += psf_binheader_readf (psf, "b", b->originator, sizeof (b->originator)) ;
1687 bytes += psf_binheader_readf (psf, "b", b->originator_reference, sizeof (b->originator_reference)) ;
1688 bytes += psf_binheader_readf (psf, "b", b->origination_date, sizeof (b->origination_date)) ;
1689 bytes += psf_binheader_readf (psf, "b", b->origination_time, sizeof (b->origination_time)) ;
1690 bytes += psf_binheader_readf (psf, "442", &b->time_reference_low, &b->time_reference_high, &b->version) ;
1691 bytes += psf_binheader_readf (psf, "bj", &b->umid, sizeof (b->umid), 190) ;
1692
1693 if (chunksize > WAV_BEXT_MIN_CHUNK_SIZE)
1694 { /* File has coding history data. */
1695
1696 b->coding_history_size = chunksize - WAV_BEXT_MIN_CHUNK_SIZE ;
1697
1698 /* We do not parse the coding history */
1699 bytes += psf_binheader_readf (psf, "b", b->coding_history, b->coding_history_size) ;
1700 } ;
1701
1702 if (bytes < chunksize)
1703 psf_binheader_readf (psf, "j", chunksize - bytes) ;
1704
1705 return 0 ;
1706 } /* wav_read_bext_chunk */
1707
1708 int
1709 wav_write_bext_chunk (SF_PRIVATE *psf)
1710 { SF_BROADCAST_INFO_16K *b ;
1711
1712 if (psf->broadcast_16k == NULL)
1713 return -1 ;
1714
1715 b = psf->broadcast_16k ;
1716
1717 psf_binheader_writef (psf, "m4", bext_MARKER, WAV_BEXT_MIN_CHUNK_SIZE + b->coding_history_size) ;
1718
1719 /*
1720 ** Note that it is very important the the field widths of the SF_BROADCAST_INFO
1721 ** struct match those for the bext chunk fields.
1722 */
1723
1724 psf_binheader_writef (psf, "b", b->description, sizeof (b->description)) ;
1725 psf_binheader_writef (psf, "b", b->originator, sizeof (b->originator)) ;
1726 psf_binheader_writef (psf, "b", b->originator_reference, sizeof (b->originator_reference)) ;
1727 psf_binheader_writef (psf, "b", b->origination_date, sizeof (b->origination_date)) ;
1728 psf_binheader_writef (psf, "b", b->origination_time, sizeof (b->origination_time)) ;
1729 psf_binheader_writef (psf, "442", b->time_reference_low, b->time_reference_high, b->version) ;
1730 psf_binheader_writef (psf, "b", b->umid, sizeof (b->umid)) ;
1731 psf_binheader_writef (psf, "z", make_size_t (190)) ;
1732
1733 if (b->coding_history_size > 0)
1734 psf_binheader_writef (psf, "b", b->coding_history, make_size_t (b->coding_history_size)) ;
1735
1736 return 0 ;
1737 } /* wav_write_bext_chunk */
1738
1739 static int
1740 exif_fill_and_sink (SF_PRIVATE *psf, char* buf, size_t bufsz, size_t toread)
1741 {
1742 size_t bytesread = 0 ;
1743
1744 buf [0] = 0 ;
1745 bufsz -= 1 ;
1746 if (toread < bufsz)
1747 bufsz = toread ;
1748 bytesread = psf_binheader_readf (psf, "b", buf, bufsz) ;
1749 buf [bufsz] = 0 ;
1750
1751 if (bytesread == bufsz && toread > bufsz)
1752 bytesread += psf_binheader_readf (psf, "j", toread - bufsz) ;
1753
1754 return bytesread ;
1755 } /* exif_fill_and_sink */
1756
1757 /*
1758 ** Exif specification for audio files, at JEITA CP-3451 Exif 2.2 section 5
1759 ** (Exif Audio File Specification) http://www.exif.org/Exif2-2.PDF
1760 */
1761 static int
1762 exif_subchunk_parse (SF_PRIVATE *psf, unsigned int length)
1763 { unsigned marker, dword, vmajor = -1, vminor = -1, bytesread = 0 ;
1764 char buf [4096] ;
1765
1766 while (bytesread < length)
1767 {
1768 bytesread += psf_binheader_readf (psf, "m", &marker) ;
1769
1770 switch (marker)
1771 {
1772 case 0 : /* camera padding? */
1773 break ;
1774
1775 case ever_MARKER :
1776 bytesread += psf_binheader_readf (psf, "j4", 4, &dword) ;
1777 vmajor = 10 * (((dword >> 24) & 0xff) - '0') + (((dword >> 16) & 0xff) - '0') ;
1778 vminor = 10 * (((dword >> 8) & 0xff) - '0') + ((dword & 0xff) - '0') ;
1779 psf_log_printf (psf, " EXIF Version : %u.%02u\n", vmajor, vminor) ;
1780 break ;
1781
1782 case emnt_MARKER : /* design information: null-terminated string */
1783 case emdl_MARKER : /* model name ; null-terminated string */
1784 case ecor_MARKER : /* manufacturer: null-terminated string */
1785 case etim_MARKER : /* creation time: null-terminated string in the format "hour:minute:second.subsecond" */
1786 case erel_MARKER : /* relation info: null-terminated string (filename) */
1787 case eucm_MARKER : /* user comment: 4-byte size follows, then possibly unicode data */
1788 psf_binheader_readf (psf, "4", &dword) ;
1789 bytesread += sizeof (dword) ;
1790 dword += (dword & 1) ;
1791
1792 if (dword >= sizeof (buf))
1793 { psf_log_printf (psf, "*** Marker '%M' is too big %u\n\n", marker, dword) ;
1794 return bytesread ;
1795 } ;
1796
1797 bytesread += exif_fill_and_sink (psf, buf, sizeof (buf), dword) ;
1798
1799 /* BAD - don't know what's going on here -- maybe a bug in the camera */
1800 /* field should be NULL-terminated but there's no room for it with the reported number */
1801 /* example output: emdl : 8 (EX-Z1050) */
1802 if (marker == emdl_MARKER && dword == strlen (buf) /* should be >= strlen+1*/)
1803 { psf_log_printf (psf, " *** field size too small for string (sinking 2 bytes)\n") ;
1804 bytesread += psf_binheader_readf (psf, "j", 2) ;
1805 } ;
1806
1807 psf_log_printf (psf, " %M : %d (%s)\n", marker, dword, buf) ;
1808 if (dword > length)
1809 return bytesread ;
1810 break ;
1811
1812 default :
1813 psf_log_printf (psf, " *** %M (%d): -- ignored --\n", marker, marker) ;
1814 break ;
1815 } ;
1816 } ;
1817
1818 return bytesread ;
1819 } /* exif_subchunk_parse */
1820
An OCaml-based interpreter for Faust and its vector extension