1 /*
2 ** Copyright (C) 1999-2019 Erik de Castro Lopo <erikd@mega-nerd.com>
3 ** Copyright (C) 2004-2005 David Viens <davidv@plogue.com>
4 **
5 ** This program is free software; you can redistribute it and/or modify
6 ** it under the terms of the GNU Lesser General Public License as published by
7 ** the Free Software Foundation; either version 2.1 of the License, or
8 ** (at your option) any later version.
9 **
10 ** This program is distributed in the hope that it will be useful,
11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ** GNU Lesser General Public License for more details.
14 **
15 ** You should have received a copy of the GNU Lesser General Public License
16 ** along with this program; if not, write to the Free Software
17 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20 #include "sfconfig.h"
21
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <ctype.h>
26 #include <time.h>
27 #include <inttypes.h>
28
29 #include "sndfile.h"
30 #include "sfendian.h"
31 #include "common.h"
32 #include "wavlike.h"
33
34 /*------------------------------------------------------------------------------
35 * Macros to handle big/little endian issues.
36 */
37
38 #define RIFF_MARKER (MAKE_MARKER ('R', 'I', 'F', 'F'))
39 #define RIFX_MARKER (MAKE_MARKER ('R', 'I', 'F', 'X'))
40 #define WAVE_MARKER (MAKE_MARKER ('W', 'A', 'V', 'E'))
41 #define fmt_MARKER (MAKE_MARKER ('f', 'm', 't', ' '))
42 #define fact_MARKER (MAKE_MARKER ('f', 'a', 'c', 't'))
43
44 #define cue_MARKER (MAKE_MARKER ('c', 'u', 'e', ' '))
45 #define slnt_MARKER (MAKE_MARKER ('s', 'l', 'n', 't'))
46 #define wavl_MARKER (MAKE_MARKER ('w', 'a', 'v', 'l'))
47 #define plst_MARKER (MAKE_MARKER ('p', 'l', 's', 't'))
48 #define smpl_MARKER (MAKE_MARKER ('s', 'm', 'p', 'l'))
49 #define iXML_MARKER (MAKE_MARKER ('i', 'X', 'M', 'L'))
50 #define levl_MARKER (MAKE_MARKER ('l', 'e', 'v', 'l'))
51 #define MEXT_MARKER (MAKE_MARKER ('M', 'E', 'X', 'T'))
52 #define acid_MARKER (MAKE_MARKER ('a', 'c', 'i', 'd'))
53 #define strc_MARKER (MAKE_MARKER ('s', 't', 'r', 'c'))
54 #define afsp_MARKER (MAKE_MARKER ('a', 'f', 's', 'p'))
55 #define clm_MARKER (MAKE_MARKER ('c', 'l', 'm', ' '))
56 #define elmo_MARKER (MAKE_MARKER ('e', 'l', 'm', 'o'))
57 #define FLLR_MARKER (MAKE_MARKER ('F', 'L', 'L', 'R'))
58
59 #define minf_MARKER (MAKE_MARKER ('m', 'i', 'n', 'f'))
60 #define elm1_MARKER (MAKE_MARKER ('e', 'l', 'm', '1'))
61 #define regn_MARKER (MAKE_MARKER ('r', 'e', 'g', 'n'))
62 #define ovwf_MARKER (MAKE_MARKER ('o', 'v', 'w', 'f'))
63 #define umid_MARKER (MAKE_MARKER ('u', 'm', 'i', 'd'))
64 #define SyLp_MARKER (MAKE_MARKER ('S', 'y', 'L', 'p'))
65 #define Cr8r_MARKER (MAKE_MARKER ('C', 'r', '8', 'r'))
66 #define JUNK_MARKER (MAKE_MARKER ('J', 'U', 'N', 'K'))
67 #define PMX_MARKER (MAKE_MARKER ('_', 'P', 'M', 'X'))
68 #define inst_MARKER (MAKE_MARKER ('i', 'n', 's', 't'))
69 #define AFAn_MARKER (MAKE_MARKER ('A', 'F', 'A', 'n'))
70
71
72 /* Weird WAVPACK marker which can show up at the start of the DATA section. */
73 #define wvpk_MARKER (MAKE_MARKER ('w', 'v', 'p', 'k'))
74 #define OggS_MARKER (MAKE_MARKER ('O', 'g', 'g', 'S'))
75
76 /* ID3v1 trailer which can show up at the end and erronerously look like a chunk. */
77 #define TAG__MARKER (MAKE_MARKER ('T', 'A', 'G', 0))
78 #define TAG__MARKER_MASK (MAKE_MARKER (0xff, 0xff, 0xff, 0))
79
80 #define WAVLIKE_PEAK_CHUNK_SIZE(ch) (2 * sizeof (int) + ch * (sizeof (float) + sizeof (int)))
81
82
83 enum
84 { HAVE_RIFF = 1 << 0,
85 HAVE_WAVE = 1 << 1,
86 HAVE_fmt = 1 << 2,
87 HAVE_fact = 1 << 3,
88 HAVE_PEAK = 1 << 4,
89 HAVE_data = 1 << 5,
90 HAVE_other = 1 << 6
91 } ;
92
93
94 /* known WAVEFORMATEXTENSIBLE GUIDS */
95 static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM =
96 { 0x00000001, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
97 } ;
98
99 #if 0
100 static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM =
101 { 0x00000002, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
102 } ;
103 #endif
104
105 static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT =
106 { 0x00000003, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
107 } ;
108
109 static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW =
110 { 0x00000006, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
111 } ;
112
113 static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW =
114 { 0x00000007, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
115 } ;
116
117 /*
118 ** the next two are from
119 ** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html
120 */
121 static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM =
122 { 0x00000001, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
123 } ;
124
125 static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT =
126 { 0x00000003, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
127 } ;
128
129
130 #if 0
131 /* maybe interesting one day to read the following through sf_read_raw */
132 /* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */
133 static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX =
134 { 0x8312B9C2, 0x2E6E, 0x11d4, { 0xA8, 0x24, 0xDE, 0x5B, 0x96, 0xC3, 0xAB, 0x21 }
135 } ;
136 #endif
137
138 /*------------------------------------------------------------------------------
139 ** Private static functions.
140 */
141
142 static int wav_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ;
143 static int wav_write_header (SF_PRIVATE *psf, int calc_length) ;
144
145 static int wav_write_tailer (SF_PRIVATE *psf) ;
146 static int wav_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
147 static int wav_close (SF_PRIVATE *psf) ;
148
149 static int wav_read_smpl_chunk (SF_PRIVATE *psf, uint32_t chunklen) ;
150 static int wav_read_acid_chunk (SF_PRIVATE *psf, uint32_t chunklen) ;
151
152 static int wav_set_chunk (SF_PRIVATE *psf, const SF_CHUNK_INFO * chunk_info) ;
153 static SF_CHUNK_ITERATOR * wav_next_chunk_iterator (SF_PRIVATE *psf, SF_CHUNK_ITERATOR * iterator) ;
154 static int wav_get_chunk_size (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info) ;
155 static int wav_get_chunk_data (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info) ;
156
157 /*------------------------------------------------------------------------------
158 ** Public function.
159 */
160
161 int
wav_open(SF_PRIVATE * psf)162 wav_open (SF_PRIVATE *psf)
163 { WAVLIKE_PRIVATE * wpriv ;
164 int format, subformat, error, blockalign = 0, framesperblock = 0 ;
165
166 if ((wpriv = calloc (1, sizeof (WAVLIKE_PRIVATE))) == NULL)
167 return SFE_MALLOC_FAILED ;
168 psf->container_data = wpriv ;
169
170 wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
171 psf->strings.flags = SF_STR_ALLOW_START | SF_STR_ALLOW_END ;
172
173 if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
174 { if ((error = wav_read_header (psf, &blockalign, &framesperblock)))
175 return error ;
176
177 psf->next_chunk_iterator = wav_next_chunk_iterator ;
178 psf->get_chunk_size = wav_get_chunk_size ;
179 psf->get_chunk_data = wav_get_chunk_data ;
180 } ;
181
182 subformat = SF_CODEC (psf->sf.format) ;
183
184 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
185 { if (psf->is_pipe)
186 return SFE_NO_PIPE_WRITE ;
187
188 wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
189
190 format = SF_CONTAINER (psf->sf.format) ;
191 if (format != SF_FORMAT_WAV && format != SF_FORMAT_WAVEX)
192 return SFE_BAD_OPEN_FORMAT ;
193
194 psf->blockwidth = psf->bytewidth * psf->sf.channels ;
195
196 /* RIFF WAVs are little-endian, RIFX WAVs are big-endian, default to little */
197 psf->endian = SF_ENDIAN (psf->sf.format) ;
198 if (CPU_IS_BIG_ENDIAN && psf->endian == SF_ENDIAN_CPU)
199 psf->endian = SF_ENDIAN_BIG ;
200 else if (psf->endian != SF_ENDIAN_BIG)
201 psf->endian = SF_ENDIAN_LITTLE ;
202
203 if (psf->file.mode != SFM_RDWR || psf->filelength < 44)
204 { psf->filelength = 0 ;
205 psf->datalength = 0 ;
206 psf->dataoffset = 0 ;
207 psf->sf.frames = 0 ;
208 } ;
209
210 #if (ENABLE_EXPERIMENTAL_CODE == 0)
211 /* For now, don't support writing MPEGLAYER3 WAVs, as we can't guarentee that
212 ** such a file written by libsndfile would have the same length when opened again.
213 */
214 if (subformat == SF_FORMAT_MPEG_LAYER_III)
215 return SFE_UNSUPPORTED_ENCODING ;
216 #endif
217
218 if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM)
219 { blockalign = wavlike_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
220 framesperblock = -1 ; /* Corrected later. */
221 } ;
222
223 /* By default, add the peak chunk to floating point files. Default behaviour
224 ** can be switched off using sf_command (SFC_SET_PEAK_CHUNK, SF_FALSE).
225 */
226 if (psf->file.mode == SFM_WRITE && (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE))
227 { if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
228 return SFE_MALLOC_FAILED ;
229 psf->peak_info->peak_loc = SF_PEAK_START ;
230 } ;
231
232 psf->write_header = wav_write_header ;
233 psf->set_chunk = wav_set_chunk ;
234 } ;
235
236 psf->container_close = wav_close ;
237 psf->command = wav_command ;
238
239 switch (subformat)
240 { case SF_FORMAT_PCM_U8 :
241 case SF_FORMAT_PCM_16 :
242 case SF_FORMAT_PCM_24 :
243 case SF_FORMAT_PCM_32 :
244 error = pcm_init (psf) ;
245 break ;
246
247 case SF_FORMAT_ULAW :
248 error = ulaw_init (psf) ;
249 break ;
250
251 case SF_FORMAT_ALAW :
252 error = alaw_init (psf) ;
253 break ;
254
255 /* Lite remove start */
256 case SF_FORMAT_FLOAT :
257 error = float32_init (psf) ;
258 break ;
259
260 case SF_FORMAT_DOUBLE :
261 error = double64_init (psf) ;
262 break ;
263
264 case SF_FORMAT_IMA_ADPCM :
265 error = wavlike_ima_init (psf, blockalign, framesperblock) ;
266 break ;
267
268 case SF_FORMAT_MS_ADPCM :
269 error = wavlike_msadpcm_init (psf, blockalign, framesperblock) ;
270 break ;
271
272 case SF_FORMAT_G721_32 :
273 error = g72x_init (psf) ;
274 break ;
275
276 case SF_FORMAT_NMS_ADPCM_16 :
277 case SF_FORMAT_NMS_ADPCM_24 :
278 case SF_FORMAT_NMS_ADPCM_32 :
279 error = nms_adpcm_init (psf) ;
280 break ;
281
282 /* Lite remove end */
283
284 case SF_FORMAT_GSM610 :
285 error = gsm610_init (psf) ;
286 break ;
287
288 case SF_FORMAT_MPEG_LAYER_III :
289 error = mpeg_init (psf, SF_BITRATE_MODE_CONSTANT, SF_FALSE) ;
290 break ;
291
292 default : return SFE_UNIMPLEMENTED ;
293 } ;
294
295 if (psf->file.mode == SFM_WRITE || (psf->file.mode == SFM_RDWR && psf->filelength == 0))
296 return psf->write_header (psf, SF_FALSE) ;
297
298 return error ;
299 } /* wav_open */
300
301 /*=========================================================================
302 ** Private functions.
303 */
304
305 static int
wav_read_header(SF_PRIVATE * psf,int * blockalign,int * framesperblock)306 wav_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock)
307 { WAVLIKE_PRIVATE *wpriv ;
308 WAV_FMT *wav_fmt ;
309 FACT_CHUNK fact_chunk ;
310 uint32_t marker, chunk_size = 0, RIFFsize = 0, done = 0 ;
311 int parsestage = 0, error, format = 0 ;
312
313 if (psf->is_pipe == 0 && psf->filelength > 0xFFFFFFFFLL)
314 psf_log_printf (psf, "Warning : filelength > 0xffffffff. This is bad!!!!\n") ;
315
316 if ((wpriv = psf->container_data) == NULL)
317 return SFE_INTERNAL ;
318 wav_fmt = &wpriv->wav_fmt ;
319
320 /* Set position to start of file to begin reading header. */
321 psf_binheader_readf (psf, "pmj", 0, &marker, -4) ;
322 psf->header.indx = 0 ;
323
324 /* RIFX signifies big-endian format for all header and data to prevent
325 ** lots of code copying here, we'll set the psf->rwf_endian flag once here,
326 ** and never specify endian-ness for all other header ops/
327 */
328 psf->rwf_endian = (marker == RIFF_MARKER) ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
329
330 while (! done)
331 { size_t jump = chunk_size & 1 ;
332
333 marker = chunk_size = 0 ;
334 psf_binheader_readf (psf, "jm4", jump, &marker, &chunk_size) ;
335 if (marker == 0)
336 { sf_count_t pos = psf_ftell (psf) ;
337 psf_log_printf (psf, "Have 0 marker at position %D (0x%x).\n", pos, pos) ;
338 break ;
339 } ;
340
341 psf_store_read_chunk_u32 (&psf->rchunks, marker, psf_ftell (psf), chunk_size) ;
342
343 switch (marker)
344 { case RIFF_MARKER :
345 case RIFX_MARKER :
346 if (parsestage)
347 return SFE_WAV_NO_RIFF ;
348
349 parsestage |= HAVE_RIFF ;
350
351 RIFFsize = chunk_size ;
352
353 if (psf->fileoffset > 0 && psf->filelength > RIFFsize + 8)
354 { /* Set file length. */
355 psf->filelength = RIFFsize + 8 ;
356 if (marker == RIFF_MARKER)
357 psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ;
358 else
359 psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ;
360 }
361 else if (psf->filelength < RIFFsize + 2 * SIGNED_SIZEOF (marker))
362 { if (marker == RIFF_MARKER)
363 psf_log_printf (psf, "RIFF : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (marker)) ;
364 else
365 psf_log_printf (psf, "RIFX : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (marker)) ;
366
367 RIFFsize = psf->filelength - 2 * SIGNED_SIZEOF (RIFFsize) ;
368 }
369 else
370 { if (marker == RIFF_MARKER)
371 psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ;
372 else
373 psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ;
374 } ;
375
376 psf_binheader_readf (psf, "m", &marker) ;
377 if (marker != WAVE_MARKER)
378 return SFE_WAV_NO_WAVE ;
379 parsestage |= HAVE_WAVE ;
380 psf_log_printf (psf, "WAVE\n") ;
381 chunk_size = 0 ;
382 break ;
383
384 case fmt_MARKER :
385 if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
386 return SFE_WAV_NO_FMT ;
387
388 /* If this file has a SECOND fmt chunk, I don't want to know about it. */
389 if (parsestage & HAVE_fmt)
390 break ;
391
392 parsestage |= HAVE_fmt ;
393
394 psf_log_printf (psf, "fmt : %d\n", chunk_size) ;
395
396 if ((error = wavlike_read_fmt_chunk (psf, chunk_size)))
397 return error ;
398
399 format = wav_fmt->format ;
400 break ;
401
402 case data_MARKER :
403 if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
404 return SFE_WAV_NO_DATA ;
405
406 if (psf->file.mode == SFM_RDWR && (parsestage & HAVE_other) != 0)
407 return SFE_RDWR_BAD_HEADER ;
408
409 parsestage |= HAVE_data ;
410
411 psf->datalength = chunk_size ;
412 if (psf->datalength & 1)
413 psf_log_printf (psf, "*** 'data' chunk should be an even number of bytes in length.\n") ;
414
415 psf->dataoffset = psf_ftell (psf) ;
416
417 if (psf->dataoffset > 0)
418 { if (chunk_size == 0 && RIFFsize == 8 && psf->filelength > 44)
419 { psf_log_printf (psf, "*** Looks like a WAV file which wasn't closed properly. Fixing it.\n") ;
420 psf->datalength = psf->filelength - psf->dataoffset ;
421 } ;
422
423 if (psf->datalength > psf->filelength - psf->dataoffset)
424 { psf_log_printf (psf, "data : %D (should be %D)\n", psf->datalength, psf->filelength - psf->dataoffset) ;
425 psf->datalength = psf->filelength - psf->dataoffset ;
426 }
427 else
428 psf_log_printf (psf, "data : %D\n", psf->datalength) ;
429
430 /* Only set dataend if there really is data at the end. */
431 if (psf->datalength + psf->dataoffset < psf->filelength)
432 psf->dataend = psf->datalength + psf->dataoffset ;
433
434 psf->datalength += chunk_size & 1 ;
435 chunk_size = 0 ;
436 } ;
437
438 if (! psf->sf.seekable || psf->dataoffset < 0)
439 break ;
440
441 /* Seek past data and continue reading header. */
442 psf_fseek (psf, psf->datalength, SEEK_CUR) ;
443
444 if (psf_ftell (psf) != psf->datalength + psf->dataoffset)
445 psf_log_printf (psf, "*** psf_fseek past end error ***\n") ;
446 break ;
447
448 case fact_MARKER :
449 if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
450 return SFE_WAV_BAD_FACT ;
451
452 parsestage |= HAVE_fact ;
453
454 if ((parsestage & HAVE_fmt) != HAVE_fmt)
455 psf_log_printf (psf, "*** Should have 'fmt ' chunk before 'fact'\n") ;
456
457 psf_binheader_readf (psf, "4", & (fact_chunk.frames)) ;
458
459 if (chunk_size > SIGNED_SIZEOF (fact_chunk))
460 psf_binheader_readf (psf, "j", (int) (chunk_size - SIGNED_SIZEOF (fact_chunk))) ;
461
462 if (chunk_size)
463 psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
464 else
465 psf_log_printf (psf, "%M : %u (should not be zero)\n", marker, chunk_size) ;
466
467 psf_log_printf (psf, " frames : %d\n", fact_chunk.frames) ;
468 break ;
469
470 case PEAK_MARKER :
471 if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
472 return SFE_WAV_PEAK_B4_FMT ;
473
474 parsestage |= HAVE_PEAK ;
475
476 psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
477 if ((error = wavlike_read_peak_chunk (psf, chunk_size)) != 0)
478 return error ;
479 psf->peak_info->peak_loc = ((parsestage & HAVE_data) == 0) ? SF_PEAK_START : SF_PEAK_END ;
480 break ;
481
482 case cue_MARKER :
483 parsestage |= HAVE_other ;
484
485 { uint32_t thisread, bytesread, cue_count, position, offset ;
486 int id, chunk_id, chunk_start, block_start, cue_index ;
487
488 bytesread = psf_binheader_readf (psf, "4", &cue_count) ;
489 psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
490
491 if (cue_count > 2500) /* 2500 is close to the largest number of cues possible because of block sizes */
492 { psf_log_printf (psf, " Count : %u (skipping)\n", cue_count) ;
493 psf_binheader_readf (psf, "j", chunk_size - bytesread) ;
494 break ;
495 } ;
496
497 psf_log_printf (psf, " Count : %d\n", cue_count) ;
498
499 if (psf->cues)
500 { free (psf->cues) ;
501 psf->cues = NULL ;
502 } ;
503
504 if ((psf->cues = psf_cues_alloc (cue_count)) == NULL)
505 return SFE_MALLOC_FAILED ;
506
507 cue_index = 0 ;
508
509 while (cue_count)
510 {
511 if ((thisread = psf_binheader_readf (psf, "e44m444", &id, &position, &chunk_id, &chunk_start, &block_start, &offset)) == 0)
512 break ;
513 bytesread += thisread ;
514
515 if (cue_index < 10) /* avoid swamping log buffer with cues */
516 psf_log_printf (psf, " Cue ID : %2d"
517 " Pos : %5u Chunk : %M"
518 " Chk Start : %d Blk Start : %d"
519 " Offset : %5d\n",
520 id, position, chunk_id, chunk_start, block_start, offset) ;
521 else if (cue_index == 10)
522 psf_log_printf (psf, " (Skipping)\n") ;
523
524 psf->cues->cue_points [cue_index].indx = id ;
525 psf->cues->cue_points [cue_index].position = position ;
526 psf->cues->cue_points [cue_index].fcc_chunk = chunk_id ;
527 psf->cues->cue_points [cue_index].chunk_start = chunk_start ;
528 psf->cues->cue_points [cue_index].block_start = block_start ;
529 psf->cues->cue_points [cue_index].sample_offset = offset ;
530 psf->cues->cue_points [cue_index].name [0] = '\0' ;
531 cue_count -- ;
532 cue_index ++ ;
533 } ;
534
535 if (bytesread != chunk_size)
536 { psf_log_printf (psf, "**** Chunk size weirdness (%d != %d)\n", chunk_size, bytesread) ;
537 psf_binheader_readf (psf, "j", chunk_size - bytesread) ;
538 } ;
539 } ;
540 break ;
541
542 case smpl_MARKER :
543 parsestage |= HAVE_other ;
544
545 psf_log_printf (psf, "smpl : %u\n", chunk_size) ;
546
547 if ((error = wav_read_smpl_chunk (psf, chunk_size)))
548 return error ;
549 break ;
550
551 case acid_MARKER :
552 parsestage |= HAVE_other ;
553
554 psf_log_printf (psf, "acid : %u\n", chunk_size) ;
555
556 if ((error = wav_read_acid_chunk (psf, chunk_size)))
557 return error ;
558 break ;
559
560 case INFO_MARKER :
561 case LIST_MARKER :
562 parsestage |= HAVE_other ;
563
564 if ((error = wavlike_subchunk_parse (psf, marker, chunk_size)) != 0)
565 return error ;
566 break ;
567
568 case bext_MARKER :
569 /*
570 The 'bext' chunk can actually be updated, so don't need to set this.
571 parsestage |= HAVE_other ;
572 */
573 if ((error = wavlike_read_bext_chunk (psf, chunk_size)))
574 return error ;
575 break ;
576
577 case PAD_MARKER :
578 /*
579 We can eat into a 'PAD ' chunk if we need to.
580 parsestage |= HAVE_other ;
581 */
582 psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
583 psf_binheader_readf (psf, "j", chunk_size) ;
584 break ;
585
586 case cart_MARKER:
587 if ((error = wavlike_read_cart_chunk (psf, chunk_size)))
588 return error ;
589 break ;
590
591 case iXML_MARKER : /* See http://en.wikipedia.org/wiki/IXML */
592 case strc_MARKER : /* Multiple of 32 bytes. */
593 case afsp_MARKER :
594 case clm_MARKER :
595 case elmo_MARKER :
596 case levl_MARKER :
597 case plst_MARKER :
598 case minf_MARKER :
599 case elm1_MARKER :
600 case regn_MARKER :
601 case ovwf_MARKER :
602 case inst_MARKER :
603 case AFAn_MARKER :
604 case umid_MARKER :
605 case SyLp_MARKER :
606 case Cr8r_MARKER :
607 case JUNK_MARKER :
608 case PMX_MARKER :
609 case DISP_MARKER :
610 case MEXT_MARKER :
611 case FLLR_MARKER :
612 psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
613 psf_binheader_readf (psf, "j", chunk_size) ;
614 break ;
615
616 default :
617 if (chunk_size >= 0xffff0000)
618 { done = SF_TRUE ;
619 psf_log_printf (psf, "*** Unknown chunk marker (%X) at position %D with length %u. Exiting parser.\n", marker, psf_ftell (psf) - 8, chunk_size) ;
620 break ;
621 } ;
622
623 if ((marker & TAG__MARKER_MASK) == TAG__MARKER &&
624 psf_ftell (psf) - 8 + 128 == psf->filelength)
625 { psf_log_printf (psf, "*** Hit ID3v1 trailer. Exiting parser.\n") ;
626 chunk_size = 128 ;
627 done = SF_TRUE ;
628 parsestage |= HAVE_other ;
629 break ;
630 } ;
631
632 if (psf_isprint ((marker >> 24) & 0xFF) && psf_isprint ((marker >> 16) & 0xFF)
633 && psf_isprint ((marker >> 8) & 0xFF) && psf_isprint (marker & 0xFF))
634 { psf_log_printf (psf, "*** %M : %u (unknown marker)\n", marker, chunk_size) ;
635 psf_binheader_readf (psf, "j", chunk_size) ;
636 break ;
637 } ;
638 if (psf_ftell (psf) & 0x03)
639 { psf_log_printf (psf, " Unknown chunk marker at position %D. Resynching.\n", psf_ftell (psf) - 8) ;
640 psf_binheader_readf (psf, "j", -3) ;
641 /* File is too messed up so we prevent editing in RDWR mode here. */
642 parsestage |= HAVE_other ;
643 break ;
644 } ;
645 psf_log_printf (psf, "*** Unknown chunk marker (%X) at position %D. Exiting parser.\n", marker, psf_ftell (psf) - 8) ;
646 done = SF_TRUE ;
647 break ;
648 } ; /* switch (marker) */
649
650 if (chunk_size >= psf->filelength)
651 { psf_log_printf (psf, "*** Chunk size %u > file length %D. Exiting parser.\n", chunk_size, psf->filelength) ;
652 break ;
653 } ;
654
655 if (! psf->sf.seekable && (parsestage & HAVE_data))
656 break ;
657
658 if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (chunk_size))
659 { psf_log_printf (psf, "End\n") ;
660 break ;
661 } ;
662 } ; /* while (1) */
663
664 if (psf->dataoffset <= 0)
665 return SFE_WAV_NO_DATA ;
666
667 if (psf->sf.channels < 1)
668 return SFE_CHANNEL_COUNT_ZERO ;
669
670 if (psf->sf.channels > SF_MAX_CHANNELS)
671 return SFE_CHANNEL_COUNT ;
672
673 if (format != WAVE_FORMAT_PCM && (parsestage & HAVE_fact) == 0)
674 psf_log_printf (psf, "**** All non-PCM format files should have a 'fact' chunk.\n") ;
675
676 /* WAVs can be little or big endian */
677 psf->endian = psf->rwf_endian ;
678
679 psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
680
681 if (psf->is_pipe == 0)
682 { /*
683 ** Check for 'wvpk' at the start of the DATA section. Not able to
684 ** handle this.
685 */
686 psf_binheader_readf (psf, "4", &marker) ;
687 if (marker == wvpk_MARKER || marker == OggS_MARKER)
688 return SFE_WAV_WVPK_DATA ;
689 } ;
690
691 /* Seek to start of DATA section. */
692 psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
693
694 if (psf->blockwidth)
695 { if (psf->filelength - psf->dataoffset < psf->datalength)
696 psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ;
697 else
698 psf->sf.frames = psf->datalength / psf->blockwidth ;
699 } ;
700
701 switch (format)
702 { case WAVE_FORMAT_EXTENSIBLE :
703 if (psf->sf.format == (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM))
704 { *blockalign = wav_fmt->msadpcm.blockalign ;
705 *framesperblock = wav_fmt->msadpcm.samplesperblock ;
706 } ;
707 break ;
708
709 case WAVE_FORMAT_NMS_VBXADPCM :
710 switch (wav_fmt->min.bitwidth)
711 { case 2 :
712 psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_16 ;
713 break ;
714 case 3 :
715 psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_24 ;
716 break ;
717 case 4 :
718 psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_32 ;
719 break ;
720
721 default :
722 return SFE_UNIMPLEMENTED ;
723 }
724 break ;
725
726 case WAVE_FORMAT_PCM :
727 psf->sf.format = SF_FORMAT_WAV | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
728 break ;
729
730 case WAVE_FORMAT_MULAW :
731 case IBM_FORMAT_MULAW :
732 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ULAW) ;
733 break ;
734
735 case WAVE_FORMAT_ALAW :
736 case IBM_FORMAT_ALAW :
737 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ALAW) ;
738 break ;
739
740 case WAVE_FORMAT_MS_ADPCM :
741 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM) ;
742 *blockalign = wav_fmt->msadpcm.blockalign ;
743 *framesperblock = wav_fmt->msadpcm.samplesperblock ;
744 break ;
745
746 case WAVE_FORMAT_IMA_ADPCM :
747 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM) ;
748 *blockalign = wav_fmt->ima.blockalign ;
749 *framesperblock = wav_fmt->ima.samplesperblock ;
750 break ;
751
752 case WAVE_FORMAT_GSM610 :
753 psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_GSM610) ;
754 break ;
755
756 case WAVE_FORMAT_IEEE_FLOAT :
757 psf->sf.format = SF_FORMAT_WAV ;
758 psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ;
759 break ;
760
761 case WAVE_FORMAT_G721_ADPCM :
762 psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_G721_32 ;
763 break ;
764
765 case WAVE_FORMAT_MPEGLAYER3 :
766 psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_MPEG_LAYER_III ;
767 if (parsestage & HAVE_fact)
768 psf->sf.frames = fact_chunk.frames ;
769 break ;
770
771 default : return SFE_UNIMPLEMENTED ;
772 } ;
773
774 if (wpriv->fmt_is_broken)
775 wavlike_analyze (psf) ;
776
777 /* Only set the format endian-ness if its non-standard big-endian. */
778 if (psf->endian == SF_ENDIAN_BIG)
779 psf->sf.format |= SF_ENDIAN_BIG ;
780
781 return 0 ;
782 } /* wav_read_header */
783
784 static int
wav_write_fmt_chunk(SF_PRIVATE * psf)785 wav_write_fmt_chunk (SF_PRIVATE *psf)
786 { int subformat, fmt_size, add_fact_chunk = 0 ;
787
788 subformat = SF_CODEC (psf->sf.format) ;
789
790 switch (subformat)
791 { case SF_FORMAT_PCM_U8 :
792 case SF_FORMAT_PCM_16 :
793 case SF_FORMAT_PCM_24 :
794 case SF_FORMAT_PCM_32 :
795 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
796
797 /* fmt : format, channels, samplerate */
798 psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_PCM), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
799 /* fmt : bytespersec */
800 psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
801 /* fmt : blockalign, bitwidth */
802 psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
803 break ;
804
805 case SF_FORMAT_FLOAT :
806 case SF_FORMAT_DOUBLE :
807 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
808
809 /* fmt : format, channels, samplerate */
810 psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_IEEE_FLOAT), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
811 /* fmt : bytespersec */
812 psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
813 /* fmt : blockalign, bitwidth */
814 psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
815
816 add_fact_chunk = SF_TRUE ;
817 break ;
818
819 case SF_FORMAT_ULAW :
820 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ;
821
822 /* fmt : format, channels, samplerate */
823 psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_MULAW), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
824 /* fmt : bytespersec */
825 psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
826 /* fmt : blockalign, bitwidth, extrabytes */
827 psf_binheader_writef (psf, "222", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (8), BHW2 (0)) ;
828
829 add_fact_chunk = SF_TRUE ;
830 break ;
831
832 case SF_FORMAT_ALAW :
833 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ;
834
835 /* fmt : format, channels, samplerate */
836 psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_ALAW), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
837 /* fmt : bytespersec */
838 psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
839 /* fmt : blockalign, bitwidth, extrabytes */
840 psf_binheader_writef (psf, "222", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (8), BHW2 (0)) ;
841
842 add_fact_chunk = SF_TRUE ;
843 break ;
844
845 /* Lite remove start */
846 case SF_FORMAT_IMA_ADPCM :
847 { int blockalign, framesperblock, bytespersec ;
848
849 blockalign = wavlike_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
850 framesperblock = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ;
851 bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
852
853 /* fmt chunk. */
854 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
855
856 /* fmt : size, WAV format type, channels, samplerate, bytespersec */
857 psf_binheader_writef (psf, "42244", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_IMA_ADPCM),
858 BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
859
860 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
861 psf_binheader_writef (psf, "2222", BHW2 (blockalign), BHW2 (4), BHW2 (2), BHW2 (framesperblock)) ;
862 } ;
863
864 add_fact_chunk = SF_TRUE ;
865 break ;
866
867 case SF_FORMAT_MS_ADPCM :
868 { int blockalign, framesperblock, bytespersec, extrabytes ;
869
870 blockalign = wavlike_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
871 framesperblock = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ;
872 bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
873
874 /* fmt chunk. */
875 extrabytes = 2 + 2 + WAVLIKE_MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ;
876 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ;
877
878 /* fmt : size, WAV format type, channels. */
879 psf_binheader_writef (psf, "422", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_MS_ADPCM), BHW2 (psf->sf.channels)) ;
880
881 /* fmt : samplerate, bytespersec. */
882 psf_binheader_writef (psf, "44", BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
883
884 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
885 psf_binheader_writef (psf, "22222", BHW2 (blockalign), BHW2 (4), BHW2 (extrabytes), BHW2 (framesperblock), BHW2 (7)) ;
886
887 wavlike_msadpcm_write_adapt_coeffs (psf) ;
888 } ;
889
890 add_fact_chunk = SF_TRUE ;
891 break ;
892
893
894 case SF_FORMAT_G721_32 :
895 /* fmt chunk. */
896 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
897
898 /* fmt : size, WAV format type, channels, samplerate, bytespersec */
899 psf_binheader_writef (psf, "42244", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_G721_ADPCM),
900 BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate), BHW4 (psf->sf.samplerate * psf->sf.channels / 2)) ;
901
902 /* fmt : blockalign, bitwidth, extrabytes, auxblocksize. */
903 psf_binheader_writef (psf, "2222", BHW2 (64), BHW2 (4), BHW2 (2), BHW2 (0)) ;
904
905 add_fact_chunk = SF_TRUE ;
906 break ;
907
908 case SF_FORMAT_NMS_ADPCM_16 :
909 case SF_FORMAT_NMS_ADPCM_24 :
910 case SF_FORMAT_NMS_ADPCM_32 :
911 { int bytespersec, blockalign, bitwidth ;
912
913 bitwidth = subformat == SF_FORMAT_NMS_ADPCM_16 ? 2 : subformat == SF_FORMAT_NMS_ADPCM_24 ? 3 : 4 ;
914 blockalign = 20 * bitwidth + 2 ;
915 bytespersec = psf->sf.samplerate * blockalign / 160 ;
916
917 /* fmt chunk. */
918 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
919
920 /* fmt : format, channels, samplerate */
921 psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_NMS_VBXADPCM),
922 BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
923 /* fmt : bytespersec, blockalign, bitwidth */
924 psf_binheader_writef (psf, "422", BHW4 (bytespersec), BHW2 (blockalign), BHW2 (bitwidth)) ;
925
926 add_fact_chunk = SF_TRUE ;
927 break ;
928 }
929
930 /* Lite remove end */
931
932 case SF_FORMAT_GSM610 :
933 { int blockalign, framesperblock, bytespersec ;
934
935 blockalign = WAVLIKE_GSM610_BLOCKSIZE ;
936 framesperblock = WAVLIKE_GSM610_SAMPLES ;
937 bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
938
939 /* fmt chunk. */
940 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
941
942 /* fmt : size, WAV format type, channels. */
943 psf_binheader_writef (psf, "422", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_GSM610), BHW2 (psf->sf.channels)) ;
944
945 /* fmt : samplerate, bytespersec. */
946 psf_binheader_writef (psf, "44", BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
947
948 /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
949 psf_binheader_writef (psf, "2222", BHW2 (blockalign), BHW2 (0), BHW2 (2), BHW2 (framesperblock)) ;
950 } ;
951
952 add_fact_chunk = SF_TRUE ;
953 break ;
954
955 #if (ENABLE_EXPERIMENTAL_CODE == 0)
956 case SF_FORMAT_MPEG_LAYER_III :
957 { int bytespersec, blockalign, flags, blocksize, samplesperblock, codecdelay ;
958
959 /* Intended to be set as the average sample rate.
960 ** TODO: Maybe re-write this on close with final average
961 ** byterate? */
962 bytespersec = psf->byterate (psf) ;
963
964 /* Average block size. Info only I think. */
965 blocksize = (1152 * bytespersec) / psf->sf.samplerate ;
966
967 /* Can be set to block size IFF the block size is
968 ** constant, set to 1 otherwise. Constant sized
969 ** MPEG block streams are uncommon (CBR @ 32kHz and
970 ** 48kHz only. Meh. */
971 blockalign = 1 ;
972
973 /* TODO: Only flags defined are padding-type. I /think/
974 ** Lame does ISO style padding by default, which has a
975 ** flag value of 0.
976 */
977 flags = 0 ;
978
979 /* Should only vary per MPEG 1.0/2.0 vs '2.5'.
980 ** TODO: Move this out to MPEG specific place? */
981 samplesperblock = psf->sf.samplerate >= 32000 ? 1152 : 576 ;
982
983 /* Set as 0 if unknown.
984 ** TODO: Plumb this cleanly from Lame.
985 */
986 codecdelay = 0 ;
987
988 /* fmt chunk. */
989 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 + 4 + 2 + 2 + 2 ;
990
991 /* fmt : size, WAV format type, channels. */
992 psf_binheader_writef (psf, "422", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_MPEGLAYER3), BHW2 (psf->sf.channels)) ;
993
994 /* fmt : samplerate, bytespersec. */
995 psf_binheader_writef (psf, "44", BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
996
997 /* fmt : blockalign, bitwidth, extrabytes, id. */
998 psf_binheader_writef (psf, "2222", BHW2 (blockalign), BHW2 (0), BHW2 (12), BHW2 (1)) ;
999
1000 /* fmt : flags, blocksize, samplesperblock, codecdelay */
1001 psf_binheader_writef (psf, "4222", BHW4 (flags), BHW2 (blocksize), BHW2 (samplesperblock), BHW2 (codecdelay)) ;
1002 } ;
1003
1004 add_fact_chunk = SF_TRUE ;
1005 break ;
1006 #endif
1007
1008 default : return SFE_UNIMPLEMENTED ;
1009 } ;
1010
1011 if (add_fact_chunk)
1012 psf_binheader_writef (psf, "tm48", BHWm (fact_MARKER), BHW4 (4), BHW8 (psf->sf.frames)) ;
1013
1014 return 0 ;
1015 } /* wav_write_fmt_chunk */
1016
1017 static int
wavex_write_fmt_chunk(SF_PRIVATE * psf)1018 wavex_write_fmt_chunk (SF_PRIVATE *psf)
1019 { WAVLIKE_PRIVATE *wpriv ;
1020 int subformat, fmt_size ;
1021
1022 if ((wpriv = psf->container_data) == NULL)
1023 return SFE_INTERNAL ;
1024
1025 subformat = SF_CODEC (psf->sf.format) ;
1026
1027 /* initial section (same for all, it appears) */
1028 switch (subformat)
1029 { case SF_FORMAT_PCM_U8 :
1030 case SF_FORMAT_PCM_16 :
1031 case SF_FORMAT_PCM_24 :
1032 case SF_FORMAT_PCM_32 :
1033 case SF_FORMAT_FLOAT :
1034 case SF_FORMAT_DOUBLE :
1035 case SF_FORMAT_ULAW :
1036 case SF_FORMAT_ALAW :
1037 fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 + 4 + 4 + 2 + 2 + 8 ;
1038
1039 /* fmt : format, channels, samplerate */
1040 psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_EXTENSIBLE), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
1041 /* fmt : bytespersec */
1042 psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
1043 /* fmt : blockalign, bitwidth */
1044 psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
1045
1046 /* cbSize 22 is sizeof (WAVEFORMATEXTENSIBLE) - sizeof (WAVEFORMATEX) */
1047 psf_binheader_writef (psf, "2", BHW2 (22)) ;
1048
1049 /* wValidBitsPerSample, for our use same as bitwidth as we use it fully */
1050 psf_binheader_writef (psf, "2", BHW2 (psf->bytewidth * 8)) ;
1051
1052 /* For an Ambisonic file set the channel mask to zero.
1053 ** Otherwise use a default based on the channel count.
1054 */
1055 if (wpriv->wavex_ambisonic != SF_AMBISONIC_NONE)
1056 psf_binheader_writef (psf, "4", BHW4 (0)) ;
1057 else if (wpriv->wavex_channelmask != 0)
1058 psf_binheader_writef (psf, "4", BHW4 (wpriv->wavex_channelmask)) ;
1059 else
1060 { /*
1061 ** Ok some liberty is taken here to use the most commonly used channel masks
1062 ** instead of "no mapping". If you really want to use "no mapping" for 8 channels and less
1063 ** please don't use wavex. (otherwise we'll have to create a new SF_COMMAND)
1064 */
1065 switch (psf->sf.channels)
1066 { case 1 : /* center channel mono */
1067 psf_binheader_writef (psf, "4", BHW4 (0x4)) ;
1068 break ;
1069
1070 case 2 : /* front left and right */
1071 psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2)) ;
1072 break ;
1073
1074 case 4 : /* Quad */
1075 psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2 | 0x10 | 0x20)) ;
1076 break ;
1077
1078 case 6 : /* 5.1 */
1079 psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20)) ;
1080 break ;
1081
1082 case 8 : /* 7.1 */
1083 psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20 | 0x40 | 0x80)) ;
1084 break ;
1085
1086 default : /* 0 when in doubt , use direct out, ie NO mapping*/
1087 psf_binheader_writef (psf, "4", BHW4 (0x0)) ;
1088 break ;
1089 } ;
1090 } ;
1091 break ;
1092
1093 case SF_FORMAT_MS_ADPCM : /* Todo, GUID exists might have different header as per wav_write_header */
1094 default :
1095 return SFE_UNIMPLEMENTED ;
1096 } ;
1097
1098 /* GUID section, different for each */
1099
1100 switch (subformat)
1101 { case SF_FORMAT_PCM_U8 :
1102 case SF_FORMAT_PCM_16 :
1103 case SF_FORMAT_PCM_24 :
1104 case SF_FORMAT_PCM_32 :
1105 wavlike_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ?
1106 &MSGUID_SUBTYPE_PCM : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM) ;
1107 break ;
1108
1109 case SF_FORMAT_FLOAT :
1110 case SF_FORMAT_DOUBLE :
1111 wavlike_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ?
1112 &MSGUID_SUBTYPE_IEEE_FLOAT : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT) ;
1113 break ;
1114
1115 case SF_FORMAT_ULAW :
1116 wavlike_write_guid (psf, &MSGUID_SUBTYPE_MULAW) ;
1117 break ;
1118
1119 case SF_FORMAT_ALAW :
1120 wavlike_write_guid (psf, &MSGUID_SUBTYPE_ALAW) ;
1121 break ;
1122
1123 #if 0
1124 /* This is dead code due to return in previous switch statement. */
1125 case SF_FORMAT_MS_ADPCM : /* todo, GUID exists */
1126 wavlike_write_guid (psf, &MSGUID_SUBTYPE_MS_ADPCM) ;
1127 break ;
1128 return SFE_UNIMPLEMENTED ;
1129 #endif
1130
1131 default : return SFE_UNIMPLEMENTED ;
1132 } ;
1133
1134 psf_binheader_writef (psf, "tm48", BHWm (fact_MARKER), BHW4 (4), BHW8 (psf->sf.frames)) ;
1135
1136 return 0 ;
1137 } /* wavex_write_fmt_chunk */
1138
1139
1140 static int
wav_write_header(SF_PRIVATE * psf,int calc_length)1141 wav_write_header (SF_PRIVATE *psf, int calc_length)
1142 { sf_count_t current ;
1143 int error, has_data = SF_FALSE ;
1144
1145 current = psf_ftell (psf) ;
1146
1147 if (current > psf->dataoffset)
1148 has_data = SF_TRUE ;
1149
1150 if (calc_length)
1151 { psf->filelength = psf_get_filelen (psf) ;
1152
1153 psf->datalength = psf->filelength - psf->dataoffset ;
1154
1155 if (psf->dataend)
1156 psf->datalength -= psf->filelength - psf->dataend ;
1157 else if (psf->bytewidth > 0 && psf->sf.seekable == SF_TRUE)
1158 psf->datalength = psf->sf.frames * psf->bytewidth * psf->sf.channels ;
1159 } ;
1160
1161 /* Reset the current header length to zero. */
1162 psf->header.ptr [0] = 0 ;
1163 psf->header.indx = 0 ;
1164 psf_fseek (psf, 0, SEEK_SET) ;
1165
1166 /*
1167 ** RIFX signifies big-endian format for all header and data.
1168 ** To prevent lots of code copying here, we'll set the psf->rwf_endian flag
1169 ** once here, and never specify endian-ness for all other header operations.
1170 */
1171
1172 /* RIFF/RIFX marker, length, WAVE and 'fmt ' markers. */
1173
1174 if (psf->endian == SF_ENDIAN_LITTLE)
1175 psf_binheader_writef (psf, "etm8", BHWm (RIFF_MARKER), BHW8 ((psf->filelength < 8) ? 8 : psf->filelength - 8)) ;
1176 else
1177 psf_binheader_writef (psf, "Etm8", BHWm (RIFX_MARKER), BHW8 ((psf->filelength < 8) ? 8 : psf->filelength - 8)) ;
1178
1179 /* WAVE and 'fmt ' markers. */
1180 psf_binheader_writef (psf, "mm", BHWm (WAVE_MARKER), BHWm (fmt_MARKER)) ;
1181
1182 /* Write the 'fmt ' chunk. */
1183 switch (SF_CONTAINER (psf->sf.format))
1184 { case SF_FORMAT_WAV :
1185 if ((error = wav_write_fmt_chunk (psf)) != 0)
1186 return error ;
1187 break ;
1188
1189 case SF_FORMAT_WAVEX :
1190 if ((error = wavex_write_fmt_chunk (psf)) != 0)
1191 return error ;
1192 break ;
1193
1194 default :
1195 return SFE_UNIMPLEMENTED ;
1196 } ;
1197
1198 /* The LIST/INFO chunk. */
1199 if (psf->strings.flags & SF_STR_LOCATE_START)
1200 wavlike_write_strings (psf, SF_STR_LOCATE_START) ;
1201
1202 if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_START)
1203 wavlike_write_peak_chunk (psf) ;
1204
1205 if (psf->broadcast_16k != NULL)
1206 wavlike_write_bext_chunk (psf) ;
1207
1208 if (psf->cart_16k != NULL)
1209 wavlike_write_cart_chunk (psf) ;
1210
1211 if (psf->cues != NULL)
1212 { uint32_t k ;
1213
1214 psf_binheader_writef (psf, "em44", BHWm (cue_MARKER), BHW4 (4 + psf->cues->cue_count * 6 * 4), BHW4 (psf->cues->cue_count)) ;
1215
1216 for (k = 0 ; k < psf->cues->cue_count ; k++)
1217 psf_binheader_writef (psf, "e44m444", BHW4 (psf->cues->cue_points [k].indx), BHW4 (psf->cues->cue_points [k].position),
1218 BHWm (psf->cues->cue_points [k].fcc_chunk), BHW4 (psf->cues->cue_points [k].chunk_start),
1219 BHW4 (psf->cues->cue_points [k].block_start), BHW4 (psf->cues->cue_points [k].sample_offset)) ;
1220 } ;
1221
1222 if (psf->instrument != NULL)
1223 { int tmp ;
1224 double dtune = (double) (0x40000000) / 25.0 ;
1225
1226 psf_binheader_writef (psf, "m4", BHWm (smpl_MARKER), BHW4 (9 * 4 + psf->instrument->loop_count * 6 * 4)) ;
1227 psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (0)) ; /* Manufacturer zero is everyone */
1228 tmp = (int) (1.0e9 / psf->sf.samplerate) ; /* Sample period in nano seconds */
1229 psf_binheader_writef (psf, "44", BHW4 (tmp), BHW4 (psf->instrument->basenote)) ;
1230 tmp = (uint32_t) (psf->instrument->detune * dtune + 0.5) ;
1231 psf_binheader_writef (psf, "4", BHW4 (tmp)) ;
1232 psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (0)) ; /* SMTPE format */
1233 psf_binheader_writef (psf, "44", BHW4 (psf->instrument->loop_count), BHW4 (0)) ;
1234
1235 /* Make sure we don't read past the loops array end. */
1236 if (psf->instrument->loop_count > ARRAY_LEN (psf->instrument->loops))
1237 psf->instrument->loop_count = ARRAY_LEN (psf->instrument->loops) ;
1238
1239 for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++)
1240 { int type ;
1241
1242 type = psf->instrument->loops [tmp].mode ;
1243 type = (type == SF_LOOP_FORWARD ? 0 : type == SF_LOOP_BACKWARD ? 2 : type == SF_LOOP_ALTERNATING ? 1 : 32) ;
1244
1245 psf_binheader_writef (psf, "44", BHW4 (tmp), BHW4 (type)) ;
1246 psf_binheader_writef (psf, "44", BHW4 (psf->instrument->loops [tmp].start), BHW4 (psf->instrument->loops [tmp].end - 1)) ;
1247 psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (psf->instrument->loops [tmp].count)) ;
1248 } ;
1249 } ;
1250
1251 /* Write custom headers. */
1252 if (psf->wchunks.used > 0)
1253 wavlike_write_custom_chunks (psf) ;
1254
1255 if (psf->header.indx + 16 < psf->dataoffset)
1256 { /* Add PAD data if necessary. */
1257 size_t k = psf->dataoffset - (psf->header.indx + 16) ;
1258 psf_binheader_writef (psf, "m4z", BHWm (PAD_MARKER), BHW4 (k), BHWz (k)) ;
1259 } ;
1260
1261 psf_binheader_writef (psf, "tm8", BHWm (data_MARKER), BHW8 (psf->datalength)) ;
1262 psf_fwrite (psf->header.ptr, psf->header.indx, 1, psf) ;
1263 if (psf->error)
1264 return psf->error ;
1265
1266 if (has_data && psf->dataoffset != psf->header.indx)
1267 { psf_log_printf (psf, "Oooops : has_data && psf->dataoffset != psf->header.indx\n") ;
1268 return psf->error = SFE_INTERNAL ;
1269 } ;
1270
1271 psf->dataoffset = psf->header.indx ;
1272
1273 if (! has_data)
1274 psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
1275 else if (current > 0)
1276 psf_fseek (psf, current, SEEK_SET) ;
1277
1278 return psf->error ;
1279 } /* wav_write_header */
1280
1281
1282 static int
wav_write_tailer(SF_PRIVATE * psf)1283 wav_write_tailer (SF_PRIVATE *psf)
1284 {
1285 /* Reset the current header buffer length to zero. */
1286 psf->header.ptr [0] = 0 ;
1287 psf->header.indx = 0 ;
1288
1289 if (psf->bytewidth > 0 && psf->sf.seekable == SF_TRUE)
1290 { psf->datalength = psf->sf.frames * psf->bytewidth * psf->sf.channels ;
1291 psf->dataend = psf->dataoffset + psf->datalength ;
1292 } ;
1293
1294 if (psf->dataend > 0)
1295 psf_fseek (psf, psf->dataend, SEEK_SET) ;
1296 else
1297 psf->dataend = psf_fseek (psf, 0, SEEK_END) ;
1298
1299 if (psf->dataend & 1)
1300 psf_binheader_writef (psf, "z", BHWz (1)) ;
1301
1302 /* Add a PEAK chunk if requested. */
1303 if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_END)
1304 wavlike_write_peak_chunk (psf) ;
1305
1306 if (psf->strings.flags & SF_STR_LOCATE_END)
1307 wavlike_write_strings (psf, SF_STR_LOCATE_END) ;
1308
1309 /* Write the tailer. */
1310 if (psf->header.indx > 0)
1311 psf_fwrite (psf->header.ptr, psf->header.indx, 1, psf) ;
1312
1313 return 0 ;
1314 } /* wav_write_tailer */
1315
1316 static int
wav_close(SF_PRIVATE * psf)1317 wav_close (SF_PRIVATE *psf)
1318 {
1319 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
1320 { wav_write_tailer (psf) ;
1321
1322 if (psf->file.mode == SFM_RDWR)
1323 { sf_count_t current = psf_ftell (psf) ;
1324
1325 /*
1326 ** If the mode is RDWR and the current position is less than the
1327 ** filelength, truncate the file.
1328 */
1329
1330 if (current < psf->filelength)
1331 { psf_ftruncate (psf, current) ;
1332 psf->filelength = current ;
1333 } ;
1334 } ;
1335
1336 psf->write_header (psf, SF_TRUE) ;
1337 } ;
1338
1339 return 0 ;
1340 } /* wav_close */
1341
1342 static int
wav_command(SF_PRIVATE * psf,int command,void * UNUSED (data),int datasize)1343 wav_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize)
1344 { WAVLIKE_PRIVATE *wpriv ;
1345
1346 if ((wpriv = psf->container_data) == NULL)
1347 return SFE_INTERNAL ;
1348
1349 switch (command)
1350 { case SFC_WAVEX_SET_AMBISONIC :
1351 if ((SF_CONTAINER (psf->sf.format)) == SF_FORMAT_WAVEX)
1352 { if (datasize == SF_AMBISONIC_NONE)
1353 wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
1354 else if (datasize == SF_AMBISONIC_B_FORMAT)
1355 wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ;
1356 else
1357 return 0 ;
1358 } ;
1359 return wpriv->wavex_ambisonic ;
1360
1361 case SFC_WAVEX_GET_AMBISONIC :
1362 return wpriv->wavex_ambisonic ;
1363
1364 case SFC_SET_CHANNEL_MAP_INFO :
1365 wpriv->wavex_channelmask = wavlike_gen_channel_mask (psf->channel_map, psf->sf.channels) ;
1366 return (wpriv->wavex_channelmask != 0) ;
1367
1368 default :
1369 break ;
1370 } ;
1371
1372 return 0 ;
1373 } /* wav_command */
1374
1375 static int
wav_read_smpl_chunk(SF_PRIVATE * psf,uint32_t chunklen)1376 wav_read_smpl_chunk (SF_PRIVATE *psf, uint32_t chunklen)
1377 { char buffer [512] ;
1378 uint32_t thisread, bytesread = 0, dword, sampler_data, loop_count, actually_loop_count = 0 ;
1379 uint32_t note, pitch, start, end, type = -1, count ;
1380 int j, k ;
1381
1382 chunklen += (chunklen & 1) ;
1383
1384 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1385 psf_log_printf (psf, " Manufacturer : %X\n", dword) ;
1386
1387 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1388 psf_log_printf (psf, " Product : %u\n", dword) ;
1389
1390 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1391 psf_log_printf (psf, " Period : %u nsec\n", dword) ;
1392
1393 bytesread += psf_binheader_readf (psf, "4", ¬e) ;
1394 psf_log_printf (psf, " Midi Note : %u\n", note) ;
1395
1396 bytesread += psf_binheader_readf (psf, "4", &pitch) ;
1397 if (pitch != 0)
1398 { snprintf (buffer, sizeof (buffer), "%f",
1399 (1.0 * 0x80000000) / ((uint32_t) pitch)) ;
1400 psf_log_printf (psf, " Pitch Fract. : %s\n", buffer) ;
1401 }
1402 else
1403 psf_log_printf (psf, " Pitch Fract. : 0\n") ;
1404
1405 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1406 psf_log_printf (psf, " SMPTE Format : %u\n", dword) ;
1407
1408 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1409 snprintf (buffer, sizeof (buffer), "%02"PRIu32 ":%02"PRIu32 ":%02"PRIu32
1410 " %02"PRIu32 "", (dword >> 24) & 0x7F, (dword >> 16) & 0x7F,
1411 (dword >> 8) & 0x7F, dword & 0x7F) ;
1412 psf_log_printf (psf, " SMPTE Offset : %s\n", buffer) ;
1413
1414 bytesread += psf_binheader_readf (psf, "4", &loop_count) ;
1415 psf_log_printf (psf, " Loop Count : %u\n", loop_count) ;
1416
1417 if (loop_count == 0 && chunklen == bytesread)
1418 return 0 ;
1419
1420 /* Sampler Data holds the number of data bytes after the CUE chunks which
1421 ** is not actually CUE data. Display value after CUE data.
1422 */
1423 bytesread += psf_binheader_readf (psf, "4", &sampler_data) ;
1424
1425 if (psf->instrument)
1426 { psf_log_printf (psf, " Found more than one SMPL chunk, using last one.\n") ;
1427 free (psf->instrument) ;
1428 psf->instrument = NULL ;
1429 } ;
1430 if ((psf->instrument = psf_instrument_alloc ()) == NULL)
1431 return SFE_MALLOC_FAILED ;
1432
1433 psf->instrument->loop_count = loop_count ;
1434
1435 for (j = 0 ; loop_count > 0 && chunklen - bytesread >= 24 ; j ++)
1436 { if ((thisread = psf_binheader_readf (psf, "4", &dword)) == 0)
1437 break ;
1438 bytesread += thisread ;
1439 psf_log_printf (psf, " Cue ID : %2u", dword) ;
1440
1441 bytesread += psf_binheader_readf (psf, "4", &type) ;
1442 psf_log_printf (psf, " Type : %2u", type) ;
1443
1444 bytesread += psf_binheader_readf (psf, "4", &start) ;
1445 psf_log_printf (psf, " Start : %5u", start) ;
1446
1447 bytesread += psf_binheader_readf (psf, "4", &end) ;
1448 psf_log_printf (psf, " End : %5u", end) ;
1449
1450 bytesread += psf_binheader_readf (psf, "4", &dword) ;
1451 psf_log_printf (psf, " Fraction : %5u", dword) ;
1452
1453 bytesread += psf_binheader_readf (psf, "4", &count) ;
1454 psf_log_printf (psf, " Count : %5u\n", count) ;
1455
1456 if (j < ARRAY_LEN (psf->instrument->loops))
1457 { psf->instrument->loops [j].start = start ;
1458 psf->instrument->loops [j].end = end + 1 ;
1459 psf->instrument->loops [j].count = count ;
1460
1461 switch (type)
1462 { case 0 :
1463 psf->instrument->loops [j].mode = SF_LOOP_FORWARD ;
1464 break ;
1465 case 1 :
1466 psf->instrument->loops [j].mode = SF_LOOP_ALTERNATING ;
1467 break ;
1468 case 2 :
1469 psf->instrument->loops [j].mode = SF_LOOP_BACKWARD ;
1470 break ;
1471 default:
1472 psf->instrument->loops [j].mode = SF_LOOP_NONE ;
1473 break ;
1474 } ;
1475 } ;
1476 actually_loop_count ++ ;
1477 } ;
1478
1479 if (actually_loop_count > ARRAY_LEN (psf->instrument->loops))
1480 {
1481 psf_log_printf (psf, "*** Warning, actual Loop Points count exceeds %u, changing Loop Count from %u to %u\n", ARRAY_LEN (psf->instrument->loops), loop_count, ARRAY_LEN (psf->instrument->loops)) ;
1482 psf->instrument->loop_count = ARRAY_LEN (psf->instrument->loops) ;
1483 }
1484 else if (loop_count != actually_loop_count)
1485 { psf_log_printf (psf, "*** Warning, actual Loop Points count != Loop Count, changing Loop Count from %u to %u\n", loop_count, actually_loop_count) ;
1486 psf->instrument->loop_count = actually_loop_count ;
1487 } ;
1488
1489 if (chunklen - bytesread == 0)
1490 { if (sampler_data != 0)
1491 psf_log_printf (psf, " Sampler Data : %u (should be 0)\n", sampler_data) ;
1492 else
1493 psf_log_printf (psf, " Sampler Data : %u\n", sampler_data) ;
1494 }
1495 else
1496 { if (sampler_data != chunklen - bytesread)
1497 { psf_log_printf (psf, " Sampler Data : %u (should have been %u)\n", sampler_data, chunklen - bytesread) ;
1498 sampler_data = chunklen - bytesread ;
1499 }
1500 else
1501 psf_log_printf (psf, " Sampler Data : %u\n", sampler_data) ;
1502
1503 psf_log_printf (psf, " ") ;
1504 for (k = 0 ; k < (int) sampler_data ; k++)
1505 { char ch ;
1506
1507 if (k > 0 && (k % 20) == 0)
1508 psf_log_printf (psf, "\n ") ;
1509
1510 if ((thisread = psf_binheader_readf (psf, "1", &ch)) == 0)
1511 break ;
1512 bytesread += thisread ;
1513 psf_log_printf (psf, "%02X ", ch & 0xFF) ;
1514 } ;
1515
1516 psf_log_printf (psf, "\n") ;
1517 } ;
1518
1519 psf->instrument->basenote = note ;
1520 psf->instrument->detune = (int8_t) (pitch / (0x40000000 / 25.0) + 0.5) ;
1521 psf->instrument->gain = 1 ;
1522 psf->instrument->velocity_lo = psf->instrument->key_lo = 0 ;
1523 psf->instrument->velocity_hi = psf->instrument->key_hi = 127 ;
1524
1525 return 0 ;
1526 } /* wav_read_smpl_chunk */
1527
1528 /*
1529 ** The acid chunk goes a little something like this:
1530 **
1531 ** 4 bytes 'acid'
1532 ** 4 bytes (int) length of chunk starting at next byte
1533 **
1534 ** 4 bytes (int) type of file:
1535 ** this appears to be a bit mask,however some combinations
1536 ** are probably impossible and/or qualified as "errors"
1537 **
1538 ** 0x01 On: One Shot Off: Loop
1539 ** 0x02 On: Root note is Set Off: No root
1540 ** 0x04 On: Stretch is On, Off: Strech is OFF
1541 ** 0x08 On: Disk Based Off: Ram based
1542 ** 0x10 On: ?????????? Off: ????????? (Acidizer puts that ON)
1543 **
1544 ** 2 bytes (short) root note
1545 ** if type 0x10 is OFF : [C,C#,(...),B] -> [0x30 to 0x3B]
1546 ** if type 0x10 is ON : [C,C#,(...),B] -> [0x3C to 0x47]
1547 ** (both types fit on same MIDI pitch albeit different octaves, so who cares)
1548 **
1549 ** 2 bytes (short) ??? always set to 0x8000
1550 ** 4 bytes (float) ??? seems to be always 0
1551 ** 4 bytes (int) number of beats
1552 ** 2 bytes (short) meter denominator //always 4 in SF/ACID
1553 ** 2 bytes (short) meter numerator //always 4 in SF/ACID
1554 ** //are we sure about the order?? usually its num/denom
1555 ** 4 bytes (float) tempo
1556 **
1557 */
1558
1559 static int
wav_read_acid_chunk(SF_PRIVATE * psf,uint32_t chunklen)1560 wav_read_acid_chunk (SF_PRIVATE *psf, uint32_t chunklen)
1561 { char buffer [512] ;
1562 uint32_t bytesread = 0 ;
1563 int beats, flags ;
1564 short rootnote, q1, meter_denom, meter_numer ;
1565 float q2, tempo ;
1566
1567 chunklen += (chunklen & 1) ;
1568
1569 bytesread += psf_binheader_readf (psf, "422f", &flags, &rootnote, &q1, &q2) ;
1570
1571 snprintf (buffer, sizeof (buffer), "%f", q2) ;
1572
1573 psf_log_printf (psf, " Flags : 0x%04x (%s,%s,%s,%s,%s)\n", flags,
1574 (flags & 0x01) ? "OneShot" : "Loop",
1575 (flags & 0x02) ? "RootNoteValid" : "RootNoteInvalid",
1576 (flags & 0x04) ? "StretchOn" : "StretchOff",
1577 (flags & 0x08) ? "DiskBased" : "RAMBased",
1578 (flags & 0x10) ? "??On" : "??Off") ;
1579
1580 psf_log_printf (psf, " Root note : 0x%x\n ???? : 0x%04x\n ???? : %s\n",
1581 rootnote, q1, buffer) ;
1582
1583 bytesread += psf_binheader_readf (psf, "422f", &beats, &meter_denom, &meter_numer, &tempo) ;
1584 snprintf (buffer, sizeof (buffer), "%f", tempo) ;
1585 psf_log_printf (psf, " Beats : %d\n Meter : %d/%d\n Tempo : %s\n",
1586 beats, meter_numer, meter_denom, buffer) ;
1587
1588 psf_binheader_readf (psf, "j", chunklen - bytesread) ;
1589
1590 if (psf->loop_info)
1591 { psf_log_printf (psf, " Found existing loop info, using last one.\n") ;
1592 free (psf->loop_info) ;
1593 psf->loop_info = NULL ;
1594 } ;
1595 if ((psf->loop_info = calloc (1, sizeof (SF_LOOP_INFO))) == NULL)
1596 return SFE_MALLOC_FAILED ;
1597
1598 psf->loop_info->time_sig_num = meter_numer ;
1599 psf->loop_info->time_sig_den = meter_denom ;
1600 psf->loop_info->loop_mode = (flags & 0x01) ? SF_LOOP_NONE : SF_LOOP_FORWARD ;
1601 psf->loop_info->num_beats = beats ;
1602 psf->loop_info->bpm = tempo ;
1603 psf->loop_info->root_key = (flags & 0x02) ? rootnote : -1 ;
1604
1605 return 0 ;
1606 } /* wav_read_acid_chunk */
1607
1608 /*==============================================================================
1609 */
1610
1611 static int
wav_set_chunk(SF_PRIVATE * psf,const SF_CHUNK_INFO * chunk_info)1612 wav_set_chunk (SF_PRIVATE *psf, const SF_CHUNK_INFO * chunk_info)
1613 { return psf_save_write_chunk (&psf->wchunks, chunk_info) ;
1614 } /* wav_set_chunk */
1615
1616 static SF_CHUNK_ITERATOR *
wav_next_chunk_iterator(SF_PRIVATE * psf,SF_CHUNK_ITERATOR * iterator)1617 wav_next_chunk_iterator (SF_PRIVATE *psf, SF_CHUNK_ITERATOR * iterator)
1618 { return psf_next_chunk_iterator (&psf->rchunks, iterator) ;
1619 } /* wav_next_chunk_iterator */
1620
1621 static int
wav_get_chunk_size(SF_PRIVATE * psf,const SF_CHUNK_ITERATOR * iterator,SF_CHUNK_INFO * chunk_info)1622 wav_get_chunk_size (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info)
1623 { int indx ;
1624
1625 if ((indx = psf_find_read_chunk_iterator (&psf->rchunks, iterator)) < 0)
1626 return SFE_UNKNOWN_CHUNK ;
1627
1628 chunk_info->datalen = psf->rchunks.chunks [indx].len ;
1629
1630 return SFE_NO_ERROR ;
1631 } /* wav_get_chunk_size */
1632
1633 static int
wav_get_chunk_data(SF_PRIVATE * psf,const SF_CHUNK_ITERATOR * iterator,SF_CHUNK_INFO * chunk_info)1634 wav_get_chunk_data (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info)
1635 { int indx ;
1636 sf_count_t pos ;
1637
1638 if ((indx = psf_find_read_chunk_iterator (&psf->rchunks, iterator)) < 0)
1639 return SFE_UNKNOWN_CHUNK ;
1640
1641 if (chunk_info->data == NULL)
1642 return SFE_BAD_CHUNK_DATA_PTR ;
1643
1644 chunk_info->id_size = psf->rchunks.chunks [indx].id_size ;
1645 memcpy (chunk_info->id, psf->rchunks.chunks [indx].id, sizeof (chunk_info->id) / sizeof (*chunk_info->id)) ;
1646
1647 pos = psf_ftell (psf) ;
1648 psf_fseek (psf, psf->rchunks.chunks [indx].offset, SEEK_SET) ;
1649 psf_fread (chunk_info->data, SF_MIN (chunk_info->datalen, psf->rchunks.chunks [indx].len), 1, psf) ;
1650 psf_fseek (psf, pos, SEEK_SET) ;
1651
1652 return SFE_NO_ERROR ;
1653 } /* wav_get_chunk_data */
1654