1 /*
2 ** Copyright (C) 1999-2018 Erik de Castro Lopo <erikd@mega-nerd.com>
3 **
4 ** This program is free software; you can redistribute it and/or modify
5 ** it under the terms of the GNU Lesser General Public License as published by
6 ** the Free Software Foundation; either version 2.1 of the License, or
7 ** (at your option) any later version.
8 **
9 ** This program is distributed in the hope that it will be useful,
10 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 ** GNU Lesser General Public License for more details.
13 **
14 ** You should have received a copy of the GNU Lesser General Public License
15 ** along with this program; if not, write to the Free Software
16 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19 #include "sfconfig.h"
20
21 #include <stdlib.h>
22 #include <string.h>
23 #include <ctype.h>
24 #include <assert.h>
25
26 #include "sndfile.h"
27 #include "sfendian.h"
28 #include "common.h"
29
30 #if HAVE_UNISTD_H
31 #include <unistd.h>
32 #elif defined _WIN32
33 #include <io.h>
34 #endif
35
36 #ifdef _WIN32
37 #define WIN32_LEAN_AND_MEAN
38 #include <windows.h>
39 #endif
40
41 #define SNDFILE_MAGICK 0x1234C0DE
42
43 #ifdef __APPLE__
44 /*
45 ** Detect if a compile for a universal binary is being attempted and barf if it is.
46 ** See the URL below for the rationale.
47 */
48 #ifdef __BIG_ENDIAN__
49 #if (CPU_IS_LITTLE_ENDIAN == 1)
50 #error "Universal binary compile detected. See http://libsndfile.github.io/libsndfile/FAQ.html#Q018"
51 #endif
52 #endif
53
54 #ifdef __LITTLE_ENDIAN__
55 #if (CPU_IS_BIG_ENDIAN == 1)
56 #error "Universal binary compile detected. See http://libsndfile.github.io/libsndfile/FAQ.html#Q018"
57 #endif
58 #endif
59 #endif
60
61
62 typedef struct
63 { int error ;
64 const char *str ;
65 } ErrorStruct ;
66
67 static
68 ErrorStruct SndfileErrors [] =
69 {
70 /* Public error values and their associated strings. */
71 { SF_ERR_NO_ERROR , "No Error." },
72 { SF_ERR_UNRECOGNISED_FORMAT , "Format not recognised." },
73 { SF_ERR_SYSTEM , "System error." /* Often replaced. */ },
74 { SF_ERR_MALFORMED_FILE , "Supported file format but file is malformed." },
75 { SF_ERR_UNSUPPORTED_ENCODING , "Supported file format but unsupported encoding." },
76
77 /* Private error values and their associated strings. */
78 { SFE_ZERO_MAJOR_FORMAT , "Error : major format is 0." },
79 { SFE_ZERO_MINOR_FORMAT , "Error : minor format is 0." },
80 { SFE_BAD_FILE , "File does not exist or is not a regular file (possibly a pipe?)." },
81 { SFE_BAD_FILE_READ , "File exists but no data could be read." },
82 { SFE_OPEN_FAILED , "Could not open file." },
83 { SFE_BAD_SNDFILE_PTR , "Not a valid SNDFILE* pointer." },
84 { SFE_BAD_SF_INFO_PTR , "NULL SF_INFO pointer passed to libsndfile." },
85 { SFE_BAD_SF_INCOMPLETE , "SF_PRIVATE struct incomplete and end of header parsing." },
86 { SFE_BAD_FILE_PTR , "Bad FILE pointer." },
87 { SFE_BAD_INT_PTR , "Internal error, Bad pointer." },
88 { SFE_BAD_STAT_SIZE , "Error : software was misconfigured at compile time (sizeof statbuf.st_size)." },
89 { SFE_NO_TEMP_DIR , "Error : Could not file temp dir." },
90
91 { SFE_MALLOC_FAILED , "Internal malloc () failed." },
92 { SFE_UNIMPLEMENTED , "File contains data in an unimplemented format." },
93 { SFE_BAD_READ_ALIGN , "Attempt to read a non-integer number of channels." },
94 { SFE_BAD_WRITE_ALIGN , "Attempt to write a non-integer number of channels." },
95 { SFE_NOT_READMODE , "Read attempted on file currently open for write." },
96 { SFE_NOT_WRITEMODE , "Write attempted on file currently open for read." },
97 { SFE_BAD_MODE_RW , "Error : This file format does not support read/write mode." },
98 { SFE_BAD_SF_INFO , "Internal error : SF_INFO struct incomplete." },
99 { SFE_BAD_OFFSET , "Error : supplied offset beyond end of file." },
100 { SFE_NO_EMBED_SUPPORT , "Error : embedding not supported for this file format." },
101 { SFE_NO_EMBEDDED_RDWR , "Error : cannot open embedded file read/write." },
102 { SFE_NO_PIPE_WRITE , "Error : this file format does not support pipe write." },
103 { SFE_BAD_VIRTUAL_IO , "Error : bad pointer on SF_VIRTUAL_IO struct." },
104 { SFE_BAD_BROADCAST_INFO_SIZE
105 , "Error : bad coding_history_size in SF_BROADCAST_INFO struct." },
106 { SFE_BAD_BROADCAST_INFO_TOO_BIG
107 , "Error : SF_BROADCAST_INFO struct too large." },
108 { SFE_BAD_CART_INFO_SIZE , "Error: SF_CART_INFO struct too large." },
109 { SFE_BAD_CART_INFO_TOO_BIG , "Error: bad tag_text_size in SF_CART_INFO struct." },
110 { SFE_INTERLEAVE_MODE , "Attempt to write to file with non-interleaved data." },
111 { SFE_INTERLEAVE_SEEK , "Bad karma in seek during interleave read operation." },
112 { SFE_INTERLEAVE_READ , "Bad karma in read during interleave read operation." },
113
114 { SFE_INTERNAL , "Unspecified internal error." },
115 { SFE_BAD_COMMAND_PARAM , "Bad parameter passed to function sf_command." },
116 { SFE_BAD_ENDIAN , "Bad endian-ness. Try default endian-ness" },
117 { SFE_CHANNEL_COUNT_ZERO , "Channel count is zero." },
118 { SFE_CHANNEL_COUNT , "Too many channels specified." },
119 { SFE_CHANNEL_COUNT_BAD , "Bad channel count." },
120
121 { SFE_BAD_SEEK , "Internal psf_fseek() failed." },
122 { SFE_NOT_SEEKABLE , "Seek attempted on unseekable file type." },
123 { SFE_AMBIGUOUS_SEEK , "Error : combination of file open mode and seek command is ambiguous." },
124 { SFE_WRONG_SEEK , "Error : invalid seek parameters." },
125 { SFE_SEEK_FAILED , "Error : parameters OK, but psf_seek() failed." },
126
127 { SFE_BAD_OPEN_MODE , "Error : bad mode parameter for file open." },
128 { SFE_OPEN_PIPE_RDWR , "Error : attempt to open a pipe in read/write mode." },
129 { SFE_RDWR_POSITION , "Error on RDWR position (cryptic)." },
130 { SFE_RDWR_BAD_HEADER , "Error : Cannot open file in read/write mode due to string data in header." },
131 { SFE_CMD_HAS_DATA , "Error : Command fails because file already has audio data." },
132
133 { SFE_STR_NO_SUPPORT , "Error : File type does not support string data." },
134 { SFE_STR_NOT_WRITE , "Error : Trying to set a string when file is not in write mode." },
135 { SFE_STR_MAX_DATA , "Error : Maximum string data storage reached." },
136 { SFE_STR_MAX_COUNT , "Error : Maximum string data count reached." },
137 { SFE_STR_BAD_TYPE , "Error : Bad string data type." },
138 { SFE_STR_NO_ADD_END , "Error : file type does not support strings added at end of file." },
139 { SFE_STR_BAD_STRING , "Error : bad string." },
140 { SFE_STR_WEIRD , "Error : Weird string error." },
141
142 { SFE_WAV_NO_RIFF , "Error in WAV file. No 'RIFF' chunk marker." },
143 { SFE_WAV_NO_WAVE , "Error in WAV file. No 'WAVE' chunk marker." },
144 { SFE_WAV_NO_FMT , "Error in WAV/W64/RF64 file. No 'fmt ' chunk marker." },
145 { SFE_WAV_BAD_FMT , "Error in WAV/W64/RF64 file. Malformed 'fmt ' chunk." },
146 { SFE_WAV_FMT_SHORT , "Error in WAV/W64/RF64 file. Short 'fmt ' chunk." },
147
148 { SFE_WAV_BAD_FACT , "Error in WAV file. 'fact' chunk out of place." },
149 { SFE_WAV_BAD_PEAK , "Error in WAV file. Bad 'PEAK' chunk." },
150 { SFE_WAV_PEAK_B4_FMT , "Error in WAV file. 'PEAK' chunk found before 'fmt ' chunk." },
151
152 { SFE_WAV_BAD_FORMAT , "Error in WAV file. Errors in 'fmt ' chunk." },
153 { SFE_WAV_BAD_BLOCKALIGN , "Error in WAV file. Block alignment in 'fmt ' chunk is incorrect." },
154 { SFE_WAV_NO_DATA , "Error in WAV file. No 'data' chunk marker." },
155 { SFE_WAV_BAD_LIST , "Error in WAV file. Malformed LIST chunk." },
156 { SFE_WAV_UNKNOWN_CHUNK , "Error in WAV file. File contains an unknown chunk marker." },
157 { SFE_WAV_WVPK_DATA , "Error in WAV file. Data is in WAVPACK format." },
158
159 { SFE_WAV_ADPCM_NOT4BIT , "Error in ADPCM WAV file. Invalid bit width." },
160 { SFE_WAV_ADPCM_CHANNELS , "Error in ADPCM WAV file. Invalid number of channels." },
161 { SFE_WAV_ADPCM_SAMPLES , "Error in ADPCM WAV file. Invalid number of samples per block." },
162 { SFE_WAV_GSM610_FORMAT , "Error in GSM610 WAV file. Invalid format chunk." },
163 { SFE_WAV_NMS_FORMAT , "Error in NMS ADPCM WAV file. Invalid format chunk." },
164
165 { SFE_AIFF_NO_FORM , "Error in AIFF file, bad 'FORM' marker." },
166 { SFE_AIFF_AIFF_NO_FORM , "Error in AIFF file, 'AIFF' marker without 'FORM'." },
167 { SFE_AIFF_COMM_NO_FORM , "Error in AIFF file, 'COMM' marker without 'FORM'." },
168 { SFE_AIFF_SSND_NO_COMM , "Error in AIFF file, 'SSND' marker without 'COMM'." },
169 { SFE_AIFF_UNKNOWN_CHUNK , "Error in AIFF file, unknown chunk." },
170 { SFE_AIFF_COMM_CHUNK_SIZE, "Error in AIFF file, bad 'COMM' chunk size." },
171 { SFE_AIFF_BAD_COMM_CHUNK , "Error in AIFF file, bad 'COMM' chunk." },
172 { SFE_AIFF_PEAK_B4_COMM , "Error in AIFF file. 'PEAK' chunk found before 'COMM' chunk." },
173 { SFE_AIFF_BAD_PEAK , "Error in AIFF file. Bad 'PEAK' chunk." },
174 { SFE_AIFF_NO_SSND , "Error in AIFF file, bad 'SSND' chunk." },
175 { SFE_AIFF_NO_DATA , "Error in AIFF file, no sound data." },
176 { SFE_AIFF_RW_SSND_NOT_LAST, "Error in AIFF file, RDWR only possible if SSND chunk at end of file." },
177
178 { SFE_AU_UNKNOWN_FORMAT , "Error in AU file, unknown format." },
179 { SFE_AU_NO_DOTSND , "Error in AU file, missing '.snd' or 'dns.' marker." },
180 { SFE_AU_EMBED_BAD_LEN , "Embedded AU file with unknown length." },
181
182 { SFE_RAW_READ_BAD_SPEC , "Error while opening RAW file for read. Must specify format and channels.\n"
183 "Possibly trying to open unsupported format." },
184 { SFE_RAW_BAD_BITWIDTH , "Error. RAW file bitwidth must be a multiple of 8." },
185 { SFE_RAW_BAD_FORMAT , "Error. Bad format field in SF_INFO struct when opening a RAW file for read." },
186
187 { SFE_PAF_NO_MARKER , "Error in PAF file, no marker." },
188 { SFE_PAF_VERSION , "Error in PAF file, bad version." },
189 { SFE_PAF_UNKNOWN_FORMAT , "Error in PAF file, unknown format." },
190 { SFE_PAF_SHORT_HEADER , "Error in PAF file. File shorter than minimal header." },
191 { SFE_PAF_BAD_CHANNELS , "Error in PAF file. Bad channel count." },
192
193 { SFE_SVX_NO_FORM , "Error in 8SVX / 16SV file, no 'FORM' marker." },
194 { SFE_SVX_NO_BODY , "Error in 8SVX / 16SV file, no 'BODY' marker." },
195 { SFE_SVX_NO_DATA , "Error in 8SVX / 16SV file, no sound data." },
196 { SFE_SVX_BAD_COMP , "Error in 8SVX / 16SV file, unsupported compression format." },
197 { SFE_SVX_BAD_NAME_LENGTH , "Error in 8SVX / 16SV file, NAME chunk too long." },
198
199 { SFE_NIST_BAD_HEADER , "Error in NIST file, bad header." },
200 { SFE_NIST_CRLF_CONVERISON, "Error : NIST file damaged by Windows CR -> CRLF conversion process." },
201 { SFE_NIST_BAD_ENCODING , "Error in NIST file, unsupported compression format." },
202
203 { SFE_VOC_NO_CREATIVE , "Error in VOC file, no 'Creative Voice File' marker." },
204 { SFE_VOC_BAD_FORMAT , "Error in VOC file, bad format." },
205 { SFE_VOC_BAD_VERSION , "Error in VOC file, bad version number." },
206 { SFE_VOC_BAD_MARKER , "Error in VOC file, bad marker in file." },
207 { SFE_VOC_BAD_SECTIONS , "Error in VOC file, incompatible VOC sections." },
208 { SFE_VOC_MULTI_SAMPLERATE, "Error in VOC file, more than one sample rate defined." },
209 { SFE_VOC_MULTI_SECTION , "Unimplemented VOC file feature, file contains multiple sound sections." },
210 { SFE_VOC_MULTI_PARAM , "Error in VOC file, file contains multiple bit or channel widths." },
211 { SFE_VOC_SECTION_COUNT , "Error in VOC file, too many sections." },
212 { SFE_VOC_NO_PIPE , "Error : not able to operate on VOC files over a pipe." },
213
214 { SFE_IRCAM_NO_MARKER , "Error in IRCAM file, bad IRCAM marker." },
215 { SFE_IRCAM_BAD_CHANNELS , "Error in IRCAM file, bad channel count." },
216 { SFE_IRCAM_UNKNOWN_FORMAT, "Error in IRCAM file, unknown encoding format." },
217
218 { SFE_W64_64_BIT , "Error in W64 file, file contains 64 bit offset." },
219 { SFE_W64_NO_RIFF , "Error in W64 file. No 'riff' chunk marker." },
220 { SFE_W64_NO_WAVE , "Error in W64 file. No 'wave' chunk marker." },
221 { SFE_W64_NO_DATA , "Error in W64 file. No 'data' chunk marker." },
222 { SFE_W64_ADPCM_NOT4BIT , "Error in ADPCM W64 file. Invalid bit width." },
223 { SFE_W64_ADPCM_CHANNELS , "Error in ADPCM W64 file. Invalid number of channels." },
224 { SFE_W64_GSM610_FORMAT , "Error in GSM610 W64 file. Invalid format chunk." },
225
226 { SFE_MAT4_BAD_NAME , "Error in MAT4 file. No variable name." },
227 { SFE_MAT4_NO_SAMPLERATE , "Error in MAT4 file. No sample rate." },
228
229 { SFE_MAT5_BAD_ENDIAN , "Error in MAT5 file. Not able to determine endian-ness." },
230 { SFE_MAT5_NO_BLOCK , "Error in MAT5 file. Bad block structure." },
231 { SFE_MAT5_SAMPLE_RATE , "Error in MAT5 file. Not able to determine sample rate." },
232
233 { SFE_PVF_NO_PVF1 , "Error in PVF file. No PVF1 marker." },
234 { SFE_PVF_BAD_HEADER , "Error in PVF file. Bad header." },
235 { SFE_PVF_BAD_BITWIDTH , "Error in PVF file. Bad bit width." },
236
237 { SFE_XI_BAD_HEADER , "Error in XI file. Bad header." },
238 { SFE_XI_EXCESS_SAMPLES , "Error in XI file. Excess samples in file." },
239 { SFE_XI_NO_PIPE , "Error : not able to operate on XI files over a pipe." },
240
241 { SFE_HTK_NO_PIPE , "Error : not able to operate on HTK files over a pipe." },
242
243 { SFE_SDS_NOT_SDS , "Error : not an SDS file." },
244 { SFE_SDS_BAD_BIT_WIDTH , "Error : bad bit width for SDS file." },
245
246 { SFE_SD2_FD_DISALLOWED , "Error : cannot open SD2 file without a file name." },
247 { SFE_SD2_BAD_DATA_OFFSET , "Error : bad data offset." },
248 { SFE_SD2_BAD_MAP_OFFSET , "Error : bad map offset." },
249 { SFE_SD2_BAD_DATA_LENGTH , "Error : bad data length." },
250 { SFE_SD2_BAD_MAP_LENGTH , "Error : bad map length." },
251 { SFE_SD2_BAD_RSRC , "Error : bad resource fork." },
252 { SFE_SD2_BAD_SAMPLE_SIZE , "Error : bad sample size." },
253
254 { SFE_FLAC_BAD_HEADER , "Error : bad flac header." },
255 { SFE_FLAC_NEW_DECODER , "Error : problem while creating flac decoder." },
256 { SFE_FLAC_INIT_DECODER , "Error : problem with initialization of the flac decoder." },
257 { SFE_FLAC_LOST_SYNC , "Error : flac decoder lost sync." },
258 { SFE_FLAC_BAD_SAMPLE_RATE, "Error : flac does not support this sample rate." },
259 { SFE_FLAC_CHANNEL_COUNT_CHANGED, "Error : flac channel changed mid stream." },
260 { SFE_FLAC_UNKOWN_ERROR , "Error : unknown error in flac decoder." },
261
262 { SFE_WVE_NOT_WVE , "Error : not a WVE file." },
263 { SFE_WVE_NO_PIPE , "Error : not able to operate on WVE files over a pipe." },
264
265 { SFE_DWVW_BAD_BITWIDTH , "Error : Bad bit width for DWVW encoding. Must be 12, 16 or 24." },
266 { SFE_G72X_NOT_MONO , "Error : G72x encoding does not support more than 1 channel." },
267 { SFE_NMS_ADPCM_NOT_MONO , "Error : NMS ADPCM encoding does not support more than 1 channel." },
268
269 { SFE_VORBIS_ENCODER_BUG , "Error : Sample rate chosen is known to trigger a Vorbis encoder bug on this CPU." },
270
271 { SFE_RF64_NOT_RF64 , "Error : Not an RF64 file." },
272 { SFE_RF64_PEAK_B4_FMT , "Error in RF64 file. 'PEAK' chunk found before 'fmt ' chunk." },
273 { SFE_RF64_NO_DATA , "Error in RF64 file. No 'data' chunk marker." },
274
275 { SFE_ALAC_FAIL_TMPFILE , "Error : Failed to open tmp file for ALAC encoding." },
276
277 { SFE_BAD_CHUNK_PTR , "Error : Bad SF_CHUNK_INFO pointer." },
278 { SFE_UNKNOWN_CHUNK , "Error : Unknown chunk marker." },
279 { SFE_BAD_CHUNK_FORMAT , "Error : Reading/writing chunks from this file format is not supported." },
280 { SFE_BAD_CHUNK_MARKER , "Error : Bad chunk marker." },
281 { SFE_BAD_CHUNK_DATA_PTR , "Error : Bad data pointer in SF_CHUNK_INFO struct." },
282 { SFE_FILENAME_TOO_LONG , "Error : Supplied filename too long." },
283 { SFE_NEGATIVE_RW_LEN , "Error : Length parameter passed to read/write is negative." },
284
285 { SFE_OPUS_BAD_SAMPLERATE , "Error : Opus only supports sample rates of 8000, 12000, 16000, 24000, and 48000." },
286
287 { SFE_MPEG_BAD_SAMPLERATE , "Error : MPEG-1/2/2.5 only supports sample rates of 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, and 48000." },
288
289 { SFE_CAF_NOT_CAF , "Error : Not a CAF file." },
290 { SFE_CAF_NO_DESC , "Error : No 'desc' marker in CAF file." },
291 { SFE_CAF_BAD_PEAK , "Error : Bad 'PEAK' chunk in CAF file." },
292
293 { SFE_AVR_NOT_AVR , "Error : Not an AVR file." },
294 { SFE_AVR_BAD_REZ_SIGN , "Error : Bad rez/sign combination." },
295
296 { SFE_MPC_NO_MARKER , "Error : No marker in MPC2K file." },
297
298 { SFE_MAX_ERROR , "Maximum error number." },
299 { SFE_MAX_ERROR + 1 , NULL }
300 } ;
301
302 /*------------------------------------------------------------------------------
303 */
304
305 static int format_from_extension (SF_PRIVATE *psf) ;
306 static int guess_file_type (SF_PRIVATE *psf) ;
307 static int validate_sfinfo (SF_INFO *sfinfo) ;
308 static int validate_psf (SF_PRIVATE *psf) ;
309 static void save_header_info (SF_PRIVATE *psf) ;
310 static int psf_close (SF_PRIVATE *psf) ;
311
312 static int try_resource_fork (SF_PRIVATE * psf) ;
313
314 /*------------------------------------------------------------------------------
315 ** Private (static) variables.
316 */
317
318 int sf_errno = 0 ;
319 static char sf_parselog [SF_BUFFER_LEN] = { 0 } ;
320 static char sf_syserr [SF_SYSERR_LEN] = { 0 } ;
321
322 /*------------------------------------------------------------------------------
323 */
324
325 #define VALIDATE_SNDFILE_AND_ASSIGN_PSF(a, b, c) \
326 { if ((a) == NULL) \
327 { sf_errno = SFE_BAD_SNDFILE_PTR ; \
328 return 0 ; \
329 } ; \
330 (b) = (SF_PRIVATE*) (a) ; \
331 if ((b)->virtual_io == SF_FALSE && \
332 psf_file_valid (b) == 0) \
333 { (b)->error = SFE_BAD_FILE_PTR ; \
334 return 0 ; \
335 } ; \
336 if ((b)->Magick != SNDFILE_MAGICK) \
337 { (b)->error = SFE_BAD_SNDFILE_PTR ; \
338 return 0 ; \
339 } ; \
340 if (c) (b)->error = 0 ; \
341 }
342
343 /*------------------------------------------------------------------------------
344 ** Public functions.
345 */
346
347 SNDFILE*
sf_open(const char * path,int mode,SF_INFO * sfinfo)348 sf_open (const char *path, int mode, SF_INFO *sfinfo)
349 { SF_PRIVATE *psf ;
350 const char *utf8path_ptr ;
351 #ifdef _WIN32
352 LPWSTR wpath ;
353 int nResult ;
354 int wpath_len ;
355 char utf8path [SF_FILENAME_LEN] ;
356 DWORD dwError ;
357 #endif
358
359 /* Ultimate sanity check. */
360 assert (sizeof (sf_count_t) == 8) ;
361
362 if ((psf = psf_allocate ()) == NULL)
363 { sf_errno = SFE_MALLOC_FAILED ;
364 return NULL ;
365 } ;
366
367 psf_init_files (psf) ;
368
369 psf_log_printf (psf, "File : %s\n", path) ;
370
371 #ifdef _WIN32
372 nResult = MultiByteToWideChar (CP_ACP, 0, path, -1, NULL, 0) ;
373 if (nResult == 0)
374 { sf_errno = SF_ERR_UNSUPPORTED_ENCODING ;
375 psf_close (psf) ;
376 return NULL ;
377 } ;
378
379 wpath_len = nResult ;
380 wpath = malloc (wpath_len * sizeof (WCHAR)) ;
381 if (!wpath)
382 { sf_errno = SFE_MALLOC_FAILED ;
383 psf_close (psf) ;
384 return NULL ;
385 } ;
386
387 nResult = MultiByteToWideChar (CP_ACP, 0, path, -1, wpath, wpath_len) ;
388 if (nResult == 0)
389 { sf_errno = SF_ERR_UNSUPPORTED_ENCODING ;
390 free (wpath) ;
391 psf_close (psf) ;
392 return NULL ;
393 } ;
394
395 nResult = WideCharToMultiByte (CP_UTF8, 0, wpath, wpath_len, NULL, 0, NULL,
396 NULL) ;
397 if (nResult == 0)
398 { sf_errno = SF_ERR_UNSUPPORTED_ENCODING ;
399 free (wpath) ;
400 psf_close (psf) ;
401 return NULL ;
402 } ;
403
404 nResult = WideCharToMultiByte (CP_UTF8, 0, wpath, wpath_len, utf8path,
405 SF_FILENAME_LEN, NULL, NULL) ;
406
407 free (wpath) ;
408
409 if (nResult == 0)
410 { dwError = GetLastError () ;
411 if (dwError == ERROR_INSUFFICIENT_BUFFER)
412 sf_errno = SFE_FILENAME_TOO_LONG ;
413 else
414 sf_errno = SF_ERR_UNSUPPORTED_ENCODING ;
415 psf_close (psf) ;
416 return NULL ;
417 } ;
418
419 utf8path_ptr = utf8path ;
420 #else
421 utf8path_ptr = path ;
422 #endif
423
424 if (psf_copy_filename (psf, utf8path_ptr) != 0)
425 { sf_errno = psf->error ;
426 psf_close (psf) ;
427 return NULL ;
428 } ;
429
430 psf->file.mode = mode ;
431 if (strcmp (path, "-") == 0)
432 psf->error = psf_set_stdio (psf) ;
433 else
434 psf->error = psf_fopen (psf) ;
435
436 return psf_open_file (psf, sfinfo) ;
437 } /* sf_open */
438
439 SNDFILE*
sf_open_fd(int fd,int mode,SF_INFO * sfinfo,int close_desc)440 sf_open_fd (int fd, int mode, SF_INFO *sfinfo, int close_desc)
441 { SF_PRIVATE *psf ;
442 SNDFILE *result ;
443
444 if ((SF_CONTAINER (sfinfo->format)) == SF_FORMAT_SD2)
445 { sf_errno = SFE_SD2_FD_DISALLOWED ;
446 if (close_desc)
447 close (fd) ;
448
449 return NULL ;
450 } ;
451
452 if ((psf = psf_allocate ()) == NULL)
453 { sf_errno = SFE_MALLOC_FAILED ;
454 if (close_desc)
455 close (fd) ;
456
457 return NULL ;
458 } ;
459
460 psf_init_files (psf) ;
461 psf_copy_filename (psf, "") ;
462
463 psf->file.mode = mode ;
464 psf_set_file (psf, fd) ;
465 psf->is_pipe = psf_is_pipe (psf) ;
466 psf->fileoffset = psf_ftell (psf) ;
467
468 result = psf_open_file (psf, sfinfo) ;
469 if (result != NULL && ! close_desc)
470 psf->file.do_not_close_descriptor = SF_TRUE ;
471
472 return result ;
473 } /* sf_open_fd */
474
475 SNDFILE*
sf_open_virtual(SF_VIRTUAL_IO * sfvirtual,int mode,SF_INFO * sfinfo,void * user_data)476 sf_open_virtual (SF_VIRTUAL_IO *sfvirtual, int mode, SF_INFO *sfinfo, void *user_data)
477 { SF_PRIVATE *psf ;
478
479 /* Make sure we have a valid set ot virtual pointers. */
480 if (sfvirtual->get_filelen == NULL)
481 { sf_errno = SFE_BAD_VIRTUAL_IO ;
482 snprintf (sf_parselog, sizeof (sf_parselog), "Bad vio_get_filelen in SF_VIRTUAL_IO struct.\n") ;
483 return NULL ;
484 } ;
485
486 if ((sfvirtual->seek == NULL || sfvirtual->tell == NULL) && sfinfo->seekable)
487 { sf_errno = SFE_BAD_VIRTUAL_IO ;
488 snprintf (sf_parselog, sizeof (sf_parselog), "Bad vio_seek / vio_tell in SF_VIRTUAL_IO struct.\n") ;
489 return NULL ;
490 } ;
491
492 if ((mode == SFM_READ || mode == SFM_RDWR) && sfvirtual->read == NULL)
493 { sf_errno = SFE_BAD_VIRTUAL_IO ;
494 snprintf (sf_parselog, sizeof (sf_parselog), "Bad vio_read in SF_VIRTUAL_IO struct.\n") ;
495 return NULL ;
496 } ;
497
498 if ((mode == SFM_WRITE || mode == SFM_RDWR) && sfvirtual->write == NULL)
499 { sf_errno = SFE_BAD_VIRTUAL_IO ;
500 snprintf (sf_parselog, sizeof (sf_parselog), "Bad vio_write in SF_VIRTUAL_IO struct.\n") ;
501 return NULL ;
502 } ;
503
504 if ((psf = psf_allocate ()) == NULL)
505 { sf_errno = SFE_MALLOC_FAILED ;
506 return NULL ;
507 } ;
508
509 psf_init_files (psf) ;
510
511 psf->virtual_io = SF_TRUE ;
512 psf->vio = *sfvirtual ;
513 psf->vio_user_data = user_data ;
514
515 psf->file.mode = mode ;
516
517 return psf_open_file (psf, sfinfo) ;
518 } /* sf_open_virtual */
519
520 int
sf_close(SNDFILE * sndfile)521 sf_close (SNDFILE *sndfile)
522 { SF_PRIVATE *psf ;
523
524 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
525
526 return psf_close (psf) ;
527 } /* sf_close */
528
529 void
sf_write_sync(SNDFILE * sndfile)530 sf_write_sync (SNDFILE *sndfile)
531 { SF_PRIVATE *psf ;
532
533 if ((psf = (SF_PRIVATE *) sndfile) == NULL)
534 return ;
535
536 psf_fsync (psf) ;
537
538 return ;
539 } /* sf_write_sync */
540
541 /*==============================================================================
542 */
543
544 const char*
sf_error_number(int errnum)545 sf_error_number (int errnum)
546 { static const char *bad_errnum =
547 "No error defined for this error number. This is a bug in libsndfile." ;
548 int k ;
549
550 if (errnum == SFE_MAX_ERROR)
551 return SndfileErrors [0].str ;
552
553 if (errnum < 0 || errnum > SFE_MAX_ERROR)
554 { /* This really shouldn't happen in release versions. */
555 printf ("Not a valid error number (%d).\n", errnum) ;
556 return bad_errnum ;
557 } ;
558
559 for (k = 0 ; SndfileErrors [k].str ; k++)
560 if (errnum == SndfileErrors [k].error)
561 return SndfileErrors [k].str ;
562
563 return bad_errnum ;
564 } /* sf_error_number */
565
566 const char*
sf_strerror(SNDFILE * sndfile)567 sf_strerror (SNDFILE *sndfile)
568 { SF_PRIVATE *psf = NULL ;
569 int errnum ;
570
571 if (sndfile == NULL)
572 { errnum = sf_errno ;
573 if (errnum == SFE_SYSTEM && sf_syserr [0])
574 return sf_syserr ;
575 }
576 else
577 { psf = (SF_PRIVATE *) sndfile ;
578
579 if (psf->Magick != SNDFILE_MAGICK)
580 return "sf_strerror : Bad magic number." ;
581
582 errnum = psf->error ;
583
584 if (errnum == SFE_SYSTEM && psf->syserr [0])
585 return psf->syserr ;
586 } ;
587
588 return sf_error_number (errnum) ;
589 } /* sf_strerror */
590
591 /*------------------------------------------------------------------------------
592 */
593
594 int
sf_error(SNDFILE * sndfile)595 sf_error (SNDFILE *sndfile)
596 { SF_PRIVATE *psf ;
597
598 if (sndfile == NULL)
599 return sf_errno ;
600
601 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 0) ;
602
603 if (psf->error)
604 return psf->error ;
605
606 return 0 ;
607 } /* sf_error */
608
609 /*------------------------------------------------------------------------------
610 */
611
612 int
sf_perror(SNDFILE * sndfile)613 sf_perror (SNDFILE *sndfile)
614 { SF_PRIVATE *psf ;
615 int errnum ;
616
617 if (sndfile == NULL)
618 { errnum = sf_errno ;
619 }
620 else
621 { VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 0) ;
622 errnum = psf->error ;
623 } ;
624
625 fprintf (stderr, "%s\n", sf_error_number (errnum)) ;
626 return SFE_NO_ERROR ;
627 } /* sf_perror */
628
629
630 /*------------------------------------------------------------------------------
631 */
632
633 int
sf_error_str(SNDFILE * sndfile,char * str,size_t maxlen)634 sf_error_str (SNDFILE *sndfile, char *str, size_t maxlen)
635 { SF_PRIVATE *psf ;
636 int errnum ;
637
638 if (str == NULL)
639 return SFE_INTERNAL ;
640
641 if (sndfile == NULL)
642 errnum = sf_errno ;
643 else
644 { VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 0) ;
645 errnum = psf->error ;
646 } ;
647
648 snprintf (str, maxlen, "%s", sf_error_number (errnum)) ;
649
650 return SFE_NO_ERROR ;
651 } /* sf_error_str */
652
653 /*==============================================================================
654 */
655
656 int
sf_format_check(const SF_INFO * info)657 sf_format_check (const SF_INFO *info)
658 { int subformat, endian ;
659
660 subformat = SF_CODEC (info->format) ;
661 endian = SF_ENDIAN (info->format) ;
662
663 /* This is the place where each file format can check if the supplied
664 ** SF_INFO struct is valid.
665 ** Return 0 on failure, 1 ons success.
666 */
667
668 if (info->channels < 1 || info->channels > SF_MAX_CHANNELS)
669 return 0 ;
670
671 if (info->samplerate < 0)
672 return 0 ;
673
674 switch (SF_CONTAINER (info->format))
675 { case SF_FORMAT_WAV :
676 /* WAV now allows both endian, RIFF or RIFX (little or big respectively) */
677 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16)
678 return 1 ;
679 if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
680 return 1 ;
681 if ((subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) && info->channels <= 2)
682 return 1 ;
683 if (subformat == SF_FORMAT_GSM610 && info->channels == 1)
684 return 1 ;
685 if (subformat == SF_FORMAT_G721_32 && info->channels == 1)
686 return 1 ;
687 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
688 return 1 ;
689 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
690 return 1 ;
691 if ((subformat == SF_FORMAT_NMS_ADPCM_16 || subformat == SF_FORMAT_NMS_ADPCM_24 ||
692 subformat == SF_FORMAT_NMS_ADPCM_32) && info->channels == 1)
693 return 1 ;
694 if (subformat == SF_FORMAT_MPEG_LAYER_III && info->channels <= 2)
695 return 1 ;
696 break ;
697
698 case SF_FORMAT_WAVEX :
699 if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
700 return 0 ;
701 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16)
702 return 1 ;
703 if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
704 return 1 ;
705 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
706 return 1 ;
707 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
708 return 1 ;
709 break ;
710
711 case SF_FORMAT_AIFF :
712 /* AIFF does allow both endian-nesses for PCM data.*/
713 if (subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
714 return 1 ;
715 /* For other encodings reject any endian-ness setting. */
716 if (endian != 0)
717 return 0 ;
718 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_S8)
719 return 1 ;
720 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
721 return 1 ;
722 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
723 return 1 ;
724 if ((subformat == SF_FORMAT_DWVW_12 || subformat == SF_FORMAT_DWVW_16 ||
725 subformat == SF_FORMAT_DWVW_24) && info-> channels == 1)
726 return 1 ;
727 if (subformat == SF_FORMAT_GSM610 && info->channels == 1)
728 return 1 ;
729 if (subformat == SF_FORMAT_IMA_ADPCM && (info->channels == 1 || info->channels == 2))
730 return 1 ;
731 break ;
732
733 case SF_FORMAT_AU :
734 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
735 return 1 ;
736 if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
737 return 1 ;
738 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
739 return 1 ;
740 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
741 return 1 ;
742 if (subformat == SF_FORMAT_G721_32 && info->channels == 1)
743 return 1 ;
744 if (subformat == SF_FORMAT_G723_24 && info->channels == 1)
745 return 1 ;
746 if (subformat == SF_FORMAT_G723_40 && info->channels == 1)
747 return 1 ;
748 break ;
749
750 case SF_FORMAT_CAF :
751 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
752 return 1 ;
753 if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
754 return 1 ;
755 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
756 return 1 ;
757 if (subformat == SF_FORMAT_ALAC_16 || subformat == SF_FORMAT_ALAC_20)
758 return 1 ;
759 if (subformat == SF_FORMAT_ALAC_24 || subformat == SF_FORMAT_ALAC_32)
760 return 1 ;
761 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
762 return 1 ;
763 break ;
764
765 case SF_FORMAT_RAW :
766 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
767 return 1 ;
768 if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
769 return 1 ;
770 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
771 return 1 ;
772 if (subformat == SF_FORMAT_ALAW || subformat == SF_FORMAT_ULAW)
773 return 1 ;
774 if ((subformat == SF_FORMAT_DWVW_12 || subformat == SF_FORMAT_DWVW_16 ||
775 subformat == SF_FORMAT_DWVW_24) && info-> channels == 1)
776 return 1 ;
777 if (subformat == SF_FORMAT_GSM610 && info->channels == 1)
778 return 1 ;
779 if (subformat == SF_FORMAT_VOX_ADPCM && info->channels == 1)
780 return 1 ;
781 if ((subformat == SF_FORMAT_NMS_ADPCM_16 || subformat == SF_FORMAT_NMS_ADPCM_24 ||
782 subformat == SF_FORMAT_NMS_ADPCM_32) && info->channels == 1)
783 return 1 ;
784 break ;
785
786 case SF_FORMAT_PAF :
787 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24)
788 return 1 ;
789 break ;
790
791 case SF_FORMAT_SVX :
792 /* SVX only supports writing mono SVX files. */
793 if (info->channels > 1)
794 return 0 ;
795 /* Always big endian. */
796 if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU)
797 return 0 ;
798
799 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
800 return 1 ;
801 break ;
802
803 case SF_FORMAT_NIST :
804 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
805 return 1 ;
806 if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
807 return 1 ;
808 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
809 return 1 ;
810 break ;
811
812 case SF_FORMAT_IRCAM :
813 if (info->channels > 256)
814 return 0 ;
815 if (subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_32)
816 return 1 ;
817 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW || subformat == SF_FORMAT_FLOAT)
818 return 1 ;
819 break ;
820
821 case SF_FORMAT_VOC :
822 if (info->channels > 2)
823 return 0 ;
824 /* VOC is strictly little endian. */
825 if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
826 return 0 ;
827 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16)
828 return 1 ;
829 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
830 return 1 ;
831 break ;
832
833 case SF_FORMAT_W64 :
834 /* W64 is strictly little endian. */
835 if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
836 return 0 ;
837 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16)
838 return 1 ;
839 if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
840 return 1 ;
841 if ((subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) && info->channels <= 2)
842 return 1 ;
843 if (subformat == SF_FORMAT_GSM610 && info->channels == 1)
844 return 1 ;
845 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
846 return 1 ;
847 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
848 return 1 ;
849 break ;
850
851 case SF_FORMAT_MAT4 :
852 if (subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_32)
853 return 1 ;
854 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
855 return 1 ;
856 break ;
857
858 case SF_FORMAT_MAT5 :
859 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_32)
860 return 1 ;
861 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
862 return 1 ;
863 break ;
864
865 case SF_FORMAT_PVF :
866 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_32)
867 return 1 ;
868 break ;
869
870 case SF_FORMAT_XI :
871 if (info->channels != 1)
872 return 0 ;
873 if (subformat == SF_FORMAT_DPCM_8 || subformat == SF_FORMAT_DPCM_16)
874 return 1 ;
875 break ;
876
877 case SF_FORMAT_HTK :
878 if (info->channels != 1)
879 return 0 ;
880 /* HTK is strictly big endian. */
881 if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU)
882 return 0 ;
883 if (subformat == SF_FORMAT_PCM_16)
884 return 1 ;
885 break ;
886
887 case SF_FORMAT_SDS :
888 if (info->channels != 1)
889 return 0 ;
890 /* SDS is strictly big endian. */
891 if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU)
892 return 0 ;
893 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24)
894 return 1 ;
895 break ;
896
897 case SF_FORMAT_AVR :
898 if (info->channels > 2)
899 return 0 ;
900 /* SDS is strictly big endian. */
901 if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU)
902 return 0 ;
903 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16)
904 return 1 ;
905 break ;
906
907 case SF_FORMAT_FLAC :
908 /* FLAC can't do more than 8 channels. */
909 if (info->channels > 8)
910 return 0 ;
911 if (endian != SF_ENDIAN_FILE)
912 return 0 ;
913 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24)
914 return 1 ;
915 break ;
916
917 case SF_FORMAT_SD2 :
918 /* SD2 is strictly big endian. */
919 if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU)
920 return 0 ;
921 if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
922 return 1 ;
923 break ;
924
925 case SF_FORMAT_WVE :
926 if (info->channels > 1)
927 return 0 ;
928 /* WVE is strictly big endian. */
929 if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
930 return 0 ;
931 if (subformat == SF_FORMAT_ALAW)
932 return 1 ;
933 break ;
934
935 case SF_FORMAT_OGG :
936 if (endian != SF_ENDIAN_FILE)
937 return 0 ;
938 if (subformat == SF_FORMAT_VORBIS)
939 return 1 ;
940 if (subformat == SF_FORMAT_OPUS)
941 return 1 ;
942 break ;
943
944 case SF_FORMAT_MPC2K :
945 if (info->channels > 2)
946 return 0 ;
947 /* MPC2000 is strictly little endian. */
948 if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
949 return 0 ;
950 if (subformat == SF_FORMAT_PCM_16)
951 return 1 ;
952 break ;
953
954 case SF_FORMAT_RF64 :
955 if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU)
956 return 0 ;
957 if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16)
958 return 1 ;
959 if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32)
960 return 1 ;
961 if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW)
962 return 1 ;
963 if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)
964 return 1 ;
965 break ;
966
967 case SF_FORMAT_MPEG :
968 if (info->channels > 2)
969 return 0 ;
970 if (endian != SF_ENDIAN_FILE)
971 return 0 ;
972 if (subformat == SF_FORMAT_MPEG_LAYER_I || subformat == SF_FORMAT_MPEG_LAYER_II || subformat == SF_FORMAT_MPEG_LAYER_III)
973 return 1 ;
974 break ;
975 default : break ;
976 } ;
977
978 return 0 ;
979 } /* sf_format_check */
980
981 /*------------------------------------------------------------------------------
982 */
983
984 const char *
sf_version_string(void)985 sf_version_string (void)
986 {
987 #if ENABLE_EXPERIMENTAL_CODE
988 return PACKAGE_NAME "-" PACKAGE_VERSION "-exp" ;
989 #else
990 return PACKAGE_NAME "-" PACKAGE_VERSION ;
991 #endif
992 }
993
994
995 /*------------------------------------------------------------------------------
996 */
997
998 int
sf_command(SNDFILE * sndfile,int command,void * data,int datasize)999 sf_command (SNDFILE *sndfile, int command, void *data, int datasize)
1000 { SF_PRIVATE *psf = (SF_PRIVATE *) sndfile ;
1001 double quality ;
1002 double latency ;
1003 int old_value ;
1004
1005 /* This set of commands do not need the sndfile parameter. */
1006 switch (command)
1007 { case SFC_GET_LIB_VERSION :
1008 if (data == NULL)
1009 { if (psf)
1010 psf->error = SFE_BAD_COMMAND_PARAM ;
1011 return 0 ;
1012 } ;
1013 snprintf (data, datasize, "%s", sf_version_string ()) ;
1014 return strlen (data) ;
1015
1016 case SFC_GET_SIMPLE_FORMAT_COUNT :
1017 if (data == NULL || datasize != SIGNED_SIZEOF (int))
1018 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1019 *((int*) data) = psf_get_format_simple_count () ;
1020 return 0 ;
1021
1022 case SFC_GET_SIMPLE_FORMAT :
1023 if (data == NULL || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO))
1024 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1025 return psf_get_format_simple (data) ;
1026
1027 case SFC_GET_FORMAT_MAJOR_COUNT :
1028 if (data == NULL || datasize != SIGNED_SIZEOF (int))
1029 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1030 *((int*) data) = psf_get_format_major_count () ;
1031 return 0 ;
1032
1033 case SFC_GET_FORMAT_MAJOR :
1034 if (data == NULL || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO))
1035 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1036 return psf_get_format_major (data) ;
1037
1038 case SFC_GET_FORMAT_SUBTYPE_COUNT :
1039 if (data == NULL || datasize != SIGNED_SIZEOF (int))
1040 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1041 *((int*) data) = psf_get_format_subtype_count () ;
1042 return 0 ;
1043
1044 case SFC_GET_FORMAT_SUBTYPE :
1045 if (data == NULL || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO))
1046 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1047 return psf_get_format_subtype (data) ;
1048
1049 case SFC_GET_FORMAT_INFO :
1050 if (data == NULL || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO))
1051 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1052 return psf_get_format_info (data) ;
1053 } ;
1054
1055 if (sndfile == NULL && command == SFC_GET_LOG_INFO)
1056 { if (data == NULL)
1057 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1058 snprintf (data, datasize, "%s", sf_parselog) ;
1059 return strlen (data) ;
1060 } ;
1061
1062 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1063
1064 switch (command)
1065 { case SFC_SET_NORM_FLOAT :
1066 old_value = psf->norm_float ;
1067 psf->norm_float = (datasize) ? SF_TRUE : SF_FALSE ;
1068 return old_value ;
1069
1070 case SFC_GET_CURRENT_SF_INFO :
1071 if (data == NULL || datasize != SIGNED_SIZEOF (SF_INFO))
1072 return (sf_errno = SFE_BAD_COMMAND_PARAM) ;
1073 memcpy (data, &psf->sf, sizeof (SF_INFO)) ;
1074 break ;
1075
1076 case SFC_SET_NORM_DOUBLE :
1077 old_value = psf->norm_double ;
1078 psf->norm_double = (datasize) ? SF_TRUE : SF_FALSE ;
1079 return old_value ;
1080
1081 case SFC_GET_NORM_FLOAT :
1082 return psf->norm_float ;
1083
1084 case SFC_GET_NORM_DOUBLE :
1085 return psf->norm_double ;
1086
1087 case SFC_SET_SCALE_FLOAT_INT_READ :
1088 old_value = psf->float_int_mult ;
1089
1090 psf->float_int_mult = (datasize != 0) ? SF_TRUE : SF_FALSE ;
1091 if (psf->float_int_mult && psf->float_max < 0.0)
1092 /* Scale to prevent wrap-around distortion. */
1093 psf->float_max = (32768.0 / 32767.0) * psf_calc_signal_max (psf, SF_FALSE) ;
1094 return old_value ;
1095
1096 case SFC_SET_SCALE_INT_FLOAT_WRITE :
1097 old_value = psf->scale_int_float ;
1098 psf->scale_int_float = (datasize != 0) ? SF_TRUE : SF_FALSE ;
1099 return old_value ;
1100
1101 case SFC_SET_ADD_PEAK_CHUNK :
1102 { int format = SF_CONTAINER (psf->sf.format) ;
1103
1104 /* Only WAV and AIFF support the PEAK chunk. */
1105 switch (format)
1106 { case SF_FORMAT_AIFF :
1107 case SF_FORMAT_CAF :
1108 case SF_FORMAT_WAV :
1109 case SF_FORMAT_WAVEX :
1110 case SF_FORMAT_RF64 :
1111 break ;
1112
1113 default :
1114 return SF_FALSE ;
1115 } ;
1116
1117 format = SF_CODEC (psf->sf.format) ;
1118
1119 /* Only files containg the following data types support the PEAK chunk. */
1120 if (format != SF_FORMAT_FLOAT && format != SF_FORMAT_DOUBLE)
1121 return SF_FALSE ;
1122
1123 } ;
1124 /* Can only do this is in SFM_WRITE mode. */
1125 if (psf->file.mode != SFM_WRITE && psf->file.mode != SFM_RDWR)
1126 return SF_FALSE ;
1127 /* If data has already been written this must fail. */
1128 if (psf->have_written)
1129 { psf->error = SFE_CMD_HAS_DATA ;
1130 return SF_FALSE ;
1131 } ;
1132 /* Everything seems OK, so set psf->has_peak and re-write header. */
1133 if (datasize == SF_FALSE && psf->peak_info != NULL)
1134 { free (psf->peak_info) ;
1135 psf->peak_info = NULL ;
1136 }
1137 else if (psf->peak_info == NULL)
1138 { psf->peak_info = peak_info_calloc (psf->sf.channels) ;
1139 if (psf->peak_info != NULL)
1140 psf->peak_info->peak_loc = SF_PEAK_START ;
1141 } ;
1142
1143 if (psf->write_header)
1144 psf->write_header (psf, SF_TRUE) ;
1145 return datasize ;
1146
1147 case SFC_SET_ADD_HEADER_PAD_CHUNK :
1148 return SF_FALSE ;
1149
1150 case SFC_GET_LOG_INFO :
1151 if (data == NULL)
1152 return SFE_BAD_COMMAND_PARAM ;
1153 snprintf (data, datasize, "%s", psf->parselog.buf) ;
1154 return strlen (data) ;
1155
1156 case SFC_CALC_SIGNAL_MAX :
1157 if (data == NULL || datasize != sizeof (double))
1158 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1159 *((double*) data) = psf_calc_signal_max (psf, SF_FALSE) ;
1160 break ;
1161
1162 case SFC_CALC_NORM_SIGNAL_MAX :
1163 if (data == NULL || datasize != sizeof (double))
1164 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1165 *((double*) data) = psf_calc_signal_max (psf, SF_TRUE) ;
1166 break ;
1167
1168 case SFC_CALC_MAX_ALL_CHANNELS :
1169 if (data == NULL || datasize != SIGNED_SIZEOF (double) * psf->sf.channels)
1170 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1171 return psf_calc_max_all_channels (psf, (double*) data, SF_FALSE) ;
1172
1173 case SFC_CALC_NORM_MAX_ALL_CHANNELS :
1174 if (data == NULL || datasize != SIGNED_SIZEOF (double) * psf->sf.channels)
1175 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1176 return psf_calc_max_all_channels (psf, (double*) data, SF_TRUE) ;
1177
1178 case SFC_GET_SIGNAL_MAX :
1179 if (data == NULL || datasize != sizeof (double))
1180 { psf->error = SFE_BAD_COMMAND_PARAM ;
1181 return SF_FALSE ;
1182 } ;
1183 return psf_get_signal_max (psf, (double *) data) ;
1184
1185 case SFC_GET_MAX_ALL_CHANNELS :
1186 if (data == NULL || datasize != SIGNED_SIZEOF (double) * psf->sf.channels)
1187 { psf->error = SFE_BAD_COMMAND_PARAM ;
1188 return SF_FALSE ;
1189 } ;
1190 return psf_get_max_all_channels (psf, (double*) data) ;
1191
1192 case SFC_UPDATE_HEADER_NOW :
1193 if (psf->write_header)
1194 psf->write_header (psf, SF_TRUE) ;
1195 break ;
1196
1197 case SFC_SET_UPDATE_HEADER_AUTO :
1198 psf->auto_header = datasize ? SF_TRUE : SF_FALSE ;
1199 return psf->auto_header ;
1200 break ;
1201
1202 case SFC_SET_ADD_DITHER_ON_WRITE :
1203 case SFC_SET_ADD_DITHER_ON_READ :
1204 /*
1205 ** FIXME !
1206 ** These are obsolete. Just return.
1207 ** Remove some time after version 1.0.8.
1208 */
1209 break ;
1210
1211 case SFC_SET_DITHER_ON_WRITE :
1212 if (data == NULL || datasize != SIGNED_SIZEOF (SF_DITHER_INFO))
1213 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1214 memcpy (&psf->write_dither, data, sizeof (psf->write_dither)) ;
1215 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
1216 dither_init (psf, SFM_WRITE) ;
1217 break ;
1218
1219 case SFC_SET_DITHER_ON_READ :
1220 if (data == NULL || datasize != SIGNED_SIZEOF (SF_DITHER_INFO))
1221 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1222 memcpy (&psf->read_dither, data, sizeof (psf->read_dither)) ;
1223 if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR)
1224 dither_init (psf, SFM_READ) ;
1225 break ;
1226
1227 case SFC_FILE_TRUNCATE :
1228 if (psf->file.mode != SFM_WRITE && psf->file.mode != SFM_RDWR)
1229 return SF_TRUE ;
1230 if (datasize != sizeof (sf_count_t))
1231 return SF_TRUE ;
1232 if (data == NULL || datasize != sizeof (sf_count_t))
1233 { psf->error = SFE_BAD_COMMAND_PARAM ;
1234 return SF_FALSE ;
1235 }
1236 else
1237 { sf_count_t position ;
1238
1239 position = *((sf_count_t*) data) ;
1240
1241 if (sf_seek (sndfile, position, SEEK_SET) != position)
1242 return SF_TRUE ;
1243
1244 psf->sf.frames = position ;
1245
1246 position = psf_fseek (psf, 0, SEEK_CUR) ;
1247
1248 return psf_ftruncate (psf, position) ;
1249 } ;
1250 break ;
1251
1252 case SFC_SET_RAW_START_OFFSET :
1253 if (data == NULL || datasize != sizeof (sf_count_t))
1254 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1255
1256 if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_RAW)
1257 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1258
1259 psf->dataoffset = *((sf_count_t*) data) ;
1260 sf_seek (sndfile, 0, SEEK_CUR) ;
1261 break ;
1262
1263 case SFC_GET_EMBED_FILE_INFO :
1264 if (data == NULL || datasize != sizeof (SF_EMBED_FILE_INFO))
1265 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1266
1267 ((SF_EMBED_FILE_INFO*) data)->offset = psf->fileoffset ;
1268 ((SF_EMBED_FILE_INFO*) data)->length = psf->filelength ;
1269 break ;
1270
1271 /* Lite remove start */
1272 case SFC_TEST_IEEE_FLOAT_REPLACE :
1273 psf->ieee_replace = (datasize) ? SF_TRUE : SF_FALSE ;
1274 if ((SF_CODEC (psf->sf.format)) == SF_FORMAT_FLOAT)
1275 float32_init (psf) ;
1276 else if ((SF_CODEC (psf->sf.format)) == SF_FORMAT_DOUBLE)
1277 double64_init (psf) ;
1278 else
1279 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1280 break ;
1281 /* Lite remove end */
1282
1283 case SFC_SET_CLIPPING :
1284 psf->add_clipping = (datasize) ? SF_TRUE : SF_FALSE ;
1285 return psf->add_clipping ;
1286
1287 case SFC_GET_CLIPPING :
1288 return psf->add_clipping ;
1289
1290 case SFC_GET_LOOP_INFO :
1291 if (datasize != sizeof (SF_LOOP_INFO) || data == NULL)
1292 { psf->error = SFE_BAD_COMMAND_PARAM ;
1293 return SF_FALSE ;
1294 } ;
1295 if (psf->loop_info == NULL)
1296 return SF_FALSE ;
1297 memcpy (data, psf->loop_info, sizeof (SF_LOOP_INFO)) ;
1298 return SF_TRUE ;
1299
1300 case SFC_SET_BROADCAST_INFO :
1301 { int format = SF_CONTAINER (psf->sf.format) ;
1302
1303 /* Only WAV and RF64 supports the BEXT (Broadcast) chunk. */
1304 if (format != SF_FORMAT_WAV && format != SF_FORMAT_WAVEX && format != SF_FORMAT_RF64)
1305 return SF_FALSE ;
1306 } ;
1307
1308 /* Only makes sense in SFM_WRITE or SFM_RDWR mode. */
1309 if ((psf->file.mode != SFM_WRITE) && (psf->file.mode != SFM_RDWR))
1310 return SF_FALSE ;
1311 /* If data has already been written this must fail. */
1312 if (psf->broadcast_16k == NULL && psf->have_written)
1313 { psf->error = SFE_CMD_HAS_DATA ;
1314 return SF_FALSE ;
1315 } ;
1316
1317 if (!broadcast_var_set (psf, data, datasize))
1318 return SF_FALSE ;
1319
1320 if (psf->write_header)
1321 psf->write_header (psf, SF_TRUE) ;
1322 return SF_TRUE ;
1323
1324 case SFC_GET_BROADCAST_INFO :
1325 if (data == NULL)
1326 { psf->error = SFE_BAD_COMMAND_PARAM ;
1327 return SF_FALSE ;
1328 } ;
1329 return broadcast_var_get (psf, data, datasize) ;
1330
1331 case SFC_SET_CART_INFO :
1332 { int format = SF_CONTAINER (psf->sf.format) ;
1333 /* Only WAV and RF64 support cart chunk format */
1334 if (format != SF_FORMAT_WAV && format != SF_FORMAT_RF64)
1335 return SF_FALSE ;
1336 } ;
1337
1338 /* Only makes sense in SFM_WRITE or SFM_RDWR mode */
1339 if ((psf->file.mode != SFM_WRITE) && (psf->file.mode != SFM_RDWR))
1340 return SF_FALSE ;
1341 /* If data has already been written this must fail. */
1342 if (psf->cart_16k == NULL && psf->have_written)
1343 { psf->error = SFE_CMD_HAS_DATA ;
1344 return SF_FALSE ;
1345 } ;
1346 if (!cart_var_set (psf, data, datasize))
1347 return SF_FALSE ;
1348 if (psf->write_header)
1349 psf->write_header (psf, SF_TRUE) ;
1350 return SF_TRUE ;
1351
1352 case SFC_GET_CART_INFO :
1353 if (data == NULL)
1354 { psf->error = SFE_BAD_COMMAND_PARAM ;
1355 return SF_FALSE ;
1356 } ;
1357 return cart_var_get (psf, data, datasize) ;
1358
1359 case SFC_GET_CUE_COUNT :
1360 if (datasize != sizeof (uint32_t) || data == NULL)
1361 { psf->error = SFE_BAD_COMMAND_PARAM ;
1362 return SF_FALSE ;
1363 } ;
1364 if (psf->cues != NULL)
1365 { *((uint32_t *) data) = psf->cues->cue_count ;
1366 return SF_TRUE ;
1367 } ;
1368 return SF_FALSE ;
1369
1370 case SFC_GET_CUE :
1371 if (datasize < (int) sizeof (uint32_t) || data == NULL)
1372 { psf->error = SFE_BAD_COMMAND_PARAM ;
1373 return SF_FALSE ;
1374 } ;
1375 if (psf->cues == NULL)
1376 return SF_FALSE ;
1377 psf_get_cues (psf, data, datasize) ;
1378 return SF_TRUE ;
1379
1380 case SFC_SET_CUE :
1381 if (psf->have_written)
1382 { psf->error = SFE_CMD_HAS_DATA ;
1383 return SF_FALSE ;
1384 } ;
1385 if (datasize < (int) sizeof (uint32_t) || data == NULL)
1386 { psf->error = SFE_BAD_COMMAND_PARAM ;
1387 return SF_FALSE ;
1388 } ;
1389 if (psf->cues == NULL && (psf->cues = psf_cues_dup (data, datasize)) == NULL)
1390 { psf->error = SFE_MALLOC_FAILED ;
1391 return SF_FALSE ;
1392 } ;
1393 return SF_TRUE ;
1394
1395 case SFC_GET_INSTRUMENT :
1396 if (datasize != sizeof (SF_INSTRUMENT) || data == NULL)
1397 { psf->error = SFE_BAD_COMMAND_PARAM ;
1398 return SF_FALSE ;
1399 } ;
1400 if (psf->instrument == NULL)
1401 return SF_FALSE ;
1402 memcpy (data, psf->instrument, sizeof (SF_INSTRUMENT)) ;
1403 return SF_TRUE ;
1404
1405 case SFC_SET_INSTRUMENT :
1406 /* If data has already been written this must fail. */
1407 if (psf->have_written)
1408 { psf->error = SFE_CMD_HAS_DATA ;
1409 return SF_FALSE ;
1410 } ;
1411 if (datasize != sizeof (SF_INSTRUMENT) || data == NULL)
1412 { psf->error = SFE_BAD_COMMAND_PARAM ;
1413 return SF_FALSE ;
1414 } ;
1415
1416 if (psf->instrument == NULL && (psf->instrument = psf_instrument_alloc ()) == NULL)
1417 { psf->error = SFE_MALLOC_FAILED ;
1418 return SF_FALSE ;
1419 } ;
1420 memcpy (psf->instrument, data, sizeof (SF_INSTRUMENT)) ;
1421 return SF_TRUE ;
1422
1423 case SFC_RAW_DATA_NEEDS_ENDSWAP :
1424 return psf->data_endswap ;
1425
1426 case SFC_GET_CHANNEL_MAP_INFO :
1427 if (psf->channel_map == NULL)
1428 return SF_FALSE ;
1429
1430 if (data == NULL || datasize != SIGNED_SIZEOF (psf->channel_map [0]) * psf->sf.channels)
1431 { psf->error = SFE_BAD_COMMAND_PARAM ;
1432 return SF_FALSE ;
1433 } ;
1434
1435 memcpy (data, psf->channel_map, datasize) ;
1436 return SF_TRUE ;
1437
1438 case SFC_SET_CHANNEL_MAP_INFO :
1439 if (psf->have_written)
1440 { psf->error = SFE_CMD_HAS_DATA ;
1441 return SF_FALSE ;
1442 } ;
1443 if (data == NULL || datasize != SIGNED_SIZEOF (psf->channel_map [0]) * psf->sf.channels)
1444 { psf->error = SFE_BAD_COMMAND_PARAM ;
1445 return SF_FALSE ;
1446 } ;
1447
1448 { int *iptr ;
1449
1450 for (iptr = data ; iptr < (int*) data + psf->sf.channels ; iptr++)
1451 { if (*iptr <= SF_CHANNEL_MAP_INVALID || *iptr >= SF_CHANNEL_MAP_MAX)
1452 { psf->error = SFE_BAD_COMMAND_PARAM ;
1453 return SF_FALSE ;
1454 } ;
1455 } ;
1456 } ;
1457
1458 free (psf->channel_map) ;
1459 if ((psf->channel_map = malloc (datasize)) == NULL)
1460 { psf->error = SFE_MALLOC_FAILED ;
1461 return SF_FALSE ;
1462 } ;
1463
1464 memcpy (psf->channel_map, data, datasize) ;
1465
1466 /*
1467 ** Pass the command down to the container's command handler.
1468 ** Don't pass user data, use validated psf->channel_map data instead.
1469 */
1470 if (psf->command)
1471 return psf->command (psf, command, NULL, 0) ;
1472 return SF_FALSE ;
1473
1474 case SFC_SET_VBR_ENCODING_QUALITY :
1475 if (data == NULL || datasize != sizeof (double))
1476 return SF_FALSE ;
1477
1478 quality = *((double *) data) ;
1479 quality = 1.0 - SF_MAX (0.0, SF_MIN (1.0, quality)) ;
1480 return sf_command (sndfile, SFC_SET_COMPRESSION_LEVEL, &quality, sizeof (quality)) ;
1481
1482 case SFC_SET_OGG_PAGE_LATENCY_MS :
1483 if (data == NULL || datasize != sizeof (double))
1484 return SF_FALSE ;
1485
1486 latency = *((double *) data) ;
1487 return sf_command (sndfile, SFC_SET_OGG_PAGE_LATENCY, &latency, sizeof (latency)) ;
1488
1489 default :
1490 /* Must be a file specific command. Pass it on. */
1491 if (psf->command)
1492 return psf->command (psf, command, data, datasize) ;
1493
1494 psf_log_printf (psf, "*** sf_command : cmd = 0x%X\n", command) ;
1495 return (psf->error = SFE_BAD_COMMAND_PARAM) ;
1496 } ;
1497
1498 return 0 ;
1499 } /* sf_command */
1500
1501 /*------------------------------------------------------------------------------
1502 */
1503
1504 sf_count_t
sf_seek(SNDFILE * sndfile,sf_count_t offset,int whence)1505 sf_seek (SNDFILE *sndfile, sf_count_t offset, int whence)
1506 { SF_PRIVATE *psf ;
1507 sf_count_t seek_from_start = 0, retval ;
1508
1509 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1510
1511 if (! psf->sf.seekable)
1512 { psf->error = SFE_NOT_SEEKABLE ;
1513 return PSF_SEEK_ERROR ;
1514 } ;
1515
1516 /* If the whence parameter has a mode ORed in, check to see that
1517 ** it makes sense.
1518 */
1519 if (((whence & SFM_MASK) == SFM_WRITE && psf->file.mode == SFM_READ) ||
1520 ((whence & SFM_MASK) == SFM_READ && psf->file.mode == SFM_WRITE))
1521 { psf->error = SFE_WRONG_SEEK ;
1522 return PSF_SEEK_ERROR ;
1523 } ;
1524
1525 /* Convert all SEEK_CUR and SEEK_END into seek_from_start to be
1526 ** used with SEEK_SET.
1527 */
1528 switch (whence)
1529 { /* The SEEK_SET behaviour is independant of mode. */
1530 case SEEK_SET :
1531 case SEEK_SET | SFM_READ :
1532 case SEEK_SET | SFM_WRITE :
1533 case SEEK_SET | SFM_RDWR :
1534 seek_from_start = offset ;
1535 break ;
1536
1537 /* The SEEK_CUR is a little more tricky. */
1538 case SEEK_CUR :
1539 if (offset == 0)
1540 { if (psf->file.mode == SFM_READ)
1541 return psf->read_current ;
1542 if (psf->file.mode == SFM_WRITE)
1543 return psf->write_current ;
1544 } ;
1545 if (psf->file.mode == SFM_READ)
1546 seek_from_start = psf->read_current + offset ;
1547 else if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
1548 seek_from_start = psf->write_current + offset ;
1549 else
1550 psf->error = SFE_AMBIGUOUS_SEEK ;
1551 break ;
1552
1553 case SEEK_CUR | SFM_READ :
1554 if (offset == 0)
1555 return psf->read_current ;
1556 seek_from_start = psf->read_current + offset ;
1557 break ;
1558
1559 case SEEK_CUR | SFM_WRITE :
1560 if (offset == 0)
1561 return psf->write_current ;
1562 seek_from_start = psf->write_current + offset ;
1563 break ;
1564
1565 /* The SEEK_END */
1566 case SEEK_END :
1567 case SEEK_END | SFM_READ :
1568 case SEEK_END | SFM_WRITE :
1569 seek_from_start = psf->sf.frames + offset ;
1570 break ;
1571
1572 default :
1573 psf->error = SFE_BAD_SEEK ;
1574 break ;
1575 } ;
1576
1577 if (psf->error)
1578 return PSF_SEEK_ERROR ;
1579
1580 if (psf->file.mode == SFM_RDWR || psf->file.mode == SFM_WRITE)
1581 { if (seek_from_start < 0)
1582 { psf->error = SFE_BAD_SEEK ;
1583 return PSF_SEEK_ERROR ;
1584 } ;
1585 }
1586 else if (seek_from_start < 0 || seek_from_start > psf->sf.frames)
1587 { psf->error = SFE_BAD_SEEK ;
1588 return PSF_SEEK_ERROR ;
1589 } ;
1590
1591 if (psf->seek)
1592 { int new_mode = (whence & SFM_MASK) ? (whence & SFM_MASK) : psf->file.mode ;
1593
1594 retval = psf->seek (psf, new_mode, seek_from_start) ;
1595
1596 switch (new_mode)
1597 { case SFM_READ :
1598 psf->read_current = retval ;
1599 break ;
1600 case SFM_WRITE :
1601 psf->write_current = retval ;
1602 break ;
1603 case SFM_RDWR :
1604 psf->read_current = retval ;
1605 psf->write_current = retval ;
1606 new_mode = SFM_READ ;
1607 break ;
1608 } ;
1609
1610 psf->last_op = new_mode ;
1611
1612 return retval ;
1613 } ;
1614
1615 psf->error = SFE_AMBIGUOUS_SEEK ;
1616 return PSF_SEEK_ERROR ;
1617 } /* sf_seek */
1618
1619 /*------------------------------------------------------------------------------
1620 */
1621
1622 const char*
sf_get_string(SNDFILE * sndfile,int str_type)1623 sf_get_string (SNDFILE *sndfile, int str_type)
1624 { SF_PRIVATE *psf ;
1625
1626 if ((psf = (SF_PRIVATE*) sndfile) == NULL)
1627 return NULL ;
1628 if (psf->Magick != SNDFILE_MAGICK)
1629 return NULL ;
1630
1631 return psf_get_string (psf, str_type) ;
1632 } /* sf_get_string */
1633
1634 int
sf_set_string(SNDFILE * sndfile,int str_type,const char * str)1635 sf_set_string (SNDFILE *sndfile, int str_type, const char* str)
1636 { SF_PRIVATE *psf ;
1637
1638 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1639
1640 return psf_set_string (psf, str_type, str) ;
1641 } /* sf_get_string */
1642
1643 /*------------------------------------------------------------------------------
1644 */
1645
1646 int
sf_current_byterate(SNDFILE * sndfile)1647 sf_current_byterate (SNDFILE *sndfile)
1648 { SF_PRIVATE *psf ;
1649
1650 if ((psf = (SF_PRIVATE*) sndfile) == NULL)
1651 return -1 ;
1652 if (psf->Magick != SNDFILE_MAGICK)
1653 return -1 ;
1654
1655 /* This should cover all PCM and floating point formats. */
1656 if (psf->bytewidth)
1657 return psf->sf.samplerate * psf->sf.channels * psf->bytewidth ;
1658
1659 if (psf->byterate)
1660 return psf->byterate (psf) ;
1661
1662 switch (SF_CODEC (psf->sf.format))
1663 { case SF_FORMAT_IMA_ADPCM :
1664 case SF_FORMAT_MS_ADPCM :
1665 case SF_FORMAT_VOX_ADPCM :
1666 return (psf->sf.samplerate * psf->sf.channels) / 2 ;
1667
1668 case SF_FORMAT_GSM610 :
1669 return (psf->sf.samplerate * psf->sf.channels * 13000) / 8000 ;
1670
1671 case SF_FORMAT_NMS_ADPCM_16:
1672 return psf->sf.samplerate / 4 + 10 ;
1673
1674 case SF_FORMAT_NMS_ADPCM_24:
1675 return psf->sf.samplerate * 3 / 8 + 10 ;
1676
1677 case SF_FORMAT_NMS_ADPCM_32:
1678 return psf->sf.samplerate / 2 + 10 ;
1679
1680 case SF_FORMAT_G721_32 : /* 32kbs G721 ADPCM encoding. */
1681 return (psf->sf.samplerate * psf->sf.channels) / 2 ;
1682
1683 case SF_FORMAT_G723_24 : /* 24kbs G723 ADPCM encoding. */
1684 return (psf->sf.samplerate * psf->sf.channels * 3) / 8 ;
1685
1686 case SF_FORMAT_G723_40 : /* 40kbs G723 ADPCM encoding. */
1687 return (psf->sf.samplerate * psf->sf.channels * 5) / 8 ;
1688
1689 default :
1690 break ;
1691 } ;
1692
1693 return -1 ;
1694 } /* sf_current_byterate */
1695
1696 /*==============================================================================
1697 */
1698
1699 sf_count_t
sf_read_raw(SNDFILE * sndfile,void * ptr,sf_count_t bytes)1700 sf_read_raw (SNDFILE *sndfile, void *ptr, sf_count_t bytes)
1701 { SF_PRIVATE *psf ;
1702 sf_count_t count, extra ;
1703 int bytewidth, blockwidth ;
1704
1705 if (bytes == 0)
1706 return 0 ;
1707
1708 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1709
1710 bytewidth = (psf->bytewidth > 0) ? psf->bytewidth : 1 ;
1711 blockwidth = (psf->blockwidth > 0) ? psf->blockwidth : 1 ;
1712
1713 if (psf->file.mode == SFM_WRITE)
1714 { psf->error = SFE_NOT_READMODE ;
1715 return 0 ;
1716 } ;
1717
1718 if (bytes < 0 || psf->read_current >= psf->sf.frames)
1719 { psf_memset (ptr, 0, bytes) ;
1720 return 0 ;
1721 } ;
1722
1723 if (bytes % (psf->sf.channels * bytewidth))
1724 { psf->error = SFE_BAD_READ_ALIGN ;
1725 return 0 ;
1726 } ;
1727
1728 if (psf->last_op != SFM_READ)
1729 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
1730 return 0 ;
1731
1732 count = psf_fread (ptr, 1, bytes, psf) ;
1733
1734 if (psf->read_current + count / blockwidth <= psf->sf.frames)
1735 psf->read_current += count / blockwidth ;
1736 else
1737 { count = (psf->sf.frames - psf->read_current) * blockwidth ;
1738 extra = bytes - count ;
1739 psf_memset (((char *) ptr) + count, 0, extra) ;
1740 psf->read_current = psf->sf.frames ;
1741 } ;
1742
1743 psf->last_op = SFM_READ ;
1744
1745 return count ;
1746 } /* sf_read_raw */
1747
1748 /*------------------------------------------------------------------------------
1749 */
1750
1751 sf_count_t
sf_read_short(SNDFILE * sndfile,short * ptr,sf_count_t len)1752 sf_read_short (SNDFILE *sndfile, short *ptr, sf_count_t len)
1753 { SF_PRIVATE *psf ;
1754 sf_count_t count, extra ;
1755
1756 if (len == 0)
1757 return 0 ;
1758
1759 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1760
1761 if (len <= 0)
1762 { psf->error = SFE_NEGATIVE_RW_LEN ;
1763 return 0 ;
1764 } ;
1765
1766 if (psf->file.mode == SFM_WRITE)
1767 { psf->error = SFE_NOT_READMODE ;
1768 return 0 ;
1769 } ;
1770
1771 if (len % psf->sf.channels)
1772 { psf->error = SFE_BAD_READ_ALIGN ;
1773 return 0 ;
1774 } ;
1775
1776 if (psf->read_current >= psf->sf.frames)
1777 { psf_memset (ptr, 0, len * sizeof (short)) ;
1778 return 0 ; /* End of file. */
1779 } ;
1780
1781 if (psf->read_short == NULL || psf->seek == NULL)
1782 { psf->error = SFE_UNIMPLEMENTED ;
1783 return 0 ;
1784 } ;
1785
1786 if (psf->last_op != SFM_READ)
1787 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
1788 return 0 ;
1789
1790 count = psf->read_short (psf, ptr, len) ;
1791
1792 if (psf->read_current + count / psf->sf.channels <= psf->sf.frames)
1793 psf->read_current += count / psf->sf.channels ;
1794 else
1795 { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ;
1796 extra = len - count ;
1797 psf_memset (ptr + count, 0, extra * sizeof (short)) ;
1798 psf->read_current = psf->sf.frames ;
1799 } ;
1800
1801 psf->last_op = SFM_READ ;
1802
1803 return count ;
1804 } /* sf_read_short */
1805
1806 sf_count_t
sf_readf_short(SNDFILE * sndfile,short * ptr,sf_count_t frames)1807 sf_readf_short (SNDFILE *sndfile, short *ptr, sf_count_t frames)
1808 { SF_PRIVATE *psf ;
1809 sf_count_t count, extra ;
1810
1811 if (frames == 0)
1812 return 0 ;
1813
1814 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1815
1816 if (frames <= 0)
1817 { psf->error = SFE_NEGATIVE_RW_LEN ;
1818 return 0 ;
1819 } ;
1820
1821 if (psf->file.mode == SFM_WRITE)
1822 { psf->error = SFE_NOT_READMODE ;
1823 return 0 ;
1824 } ;
1825
1826 if (psf->read_current >= psf->sf.frames)
1827 { psf_memset (ptr, 0, frames * psf->sf.channels * sizeof (short)) ;
1828 return 0 ; /* End of file. */
1829 } ;
1830
1831 if (psf->read_short == NULL || psf->seek == NULL)
1832 { psf->error = SFE_UNIMPLEMENTED ;
1833 return 0 ;
1834 } ;
1835
1836 if (psf->last_op != SFM_READ)
1837 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
1838 return 0 ;
1839
1840 count = psf->read_short (psf, ptr, frames * psf->sf.channels) ;
1841
1842 if (psf->read_current + count / psf->sf.channels <= psf->sf.frames)
1843 psf->read_current += count / psf->sf.channels ;
1844 else
1845 { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ;
1846 extra = frames * psf->sf.channels - count ;
1847 psf_memset (ptr + count, 0, extra * sizeof (short)) ;
1848 psf->read_current = psf->sf.frames ;
1849 } ;
1850
1851 psf->last_op = SFM_READ ;
1852
1853 return count / psf->sf.channels ;
1854 } /* sf_readf_short */
1855
1856 /*------------------------------------------------------------------------------
1857 */
1858
1859 sf_count_t
sf_read_int(SNDFILE * sndfile,int * ptr,sf_count_t len)1860 sf_read_int (SNDFILE *sndfile, int *ptr, sf_count_t len)
1861 { SF_PRIVATE *psf ;
1862 sf_count_t count, extra ;
1863
1864 if (len == 0)
1865 return 0 ;
1866
1867 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1868
1869 if (len <= 0)
1870 { psf->error = SFE_NEGATIVE_RW_LEN ;
1871 return 0 ;
1872 } ;
1873
1874 if (psf->file.mode == SFM_WRITE)
1875 { psf->error = SFE_NOT_READMODE ;
1876 return 0 ;
1877 } ;
1878
1879 if (len % psf->sf.channels)
1880 { psf->error = SFE_BAD_READ_ALIGN ;
1881 return 0 ;
1882 } ;
1883
1884 if (psf->read_current >= psf->sf.frames)
1885 { psf_memset (ptr, 0, len * sizeof (int)) ;
1886 return 0 ;
1887 } ;
1888
1889 if (psf->read_int == NULL || psf->seek == NULL)
1890 { psf->error = SFE_UNIMPLEMENTED ;
1891 return 0 ;
1892 } ;
1893
1894 if (psf->last_op != SFM_READ)
1895 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
1896 return 0 ;
1897
1898 count = psf->read_int (psf, ptr, len) ;
1899
1900 if (psf->read_current + count / psf->sf.channels <= psf->sf.frames)
1901 psf->read_current += count / psf->sf.channels ;
1902 else
1903 { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ;
1904 extra = len - count ;
1905 psf_memset (ptr + count, 0, extra * sizeof (int)) ;
1906 psf->read_current = psf->sf.frames ;
1907 } ;
1908
1909 psf->last_op = SFM_READ ;
1910
1911 return count ;
1912 } /* sf_read_int */
1913
1914 sf_count_t
sf_readf_int(SNDFILE * sndfile,int * ptr,sf_count_t frames)1915 sf_readf_int (SNDFILE *sndfile, int *ptr, sf_count_t frames)
1916 { SF_PRIVATE *psf ;
1917 sf_count_t count, extra ;
1918
1919 if (frames == 0)
1920 return 0 ;
1921
1922 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1923
1924 if (frames <= 0)
1925 { psf->error = SFE_NEGATIVE_RW_LEN ;
1926 return 0 ;
1927 } ;
1928
1929 if (psf->file.mode == SFM_WRITE)
1930 { psf->error = SFE_NOT_READMODE ;
1931 return 0 ;
1932 } ;
1933
1934 if (psf->read_current >= psf->sf.frames)
1935 { psf_memset (ptr, 0, frames * psf->sf.channels * sizeof (int)) ;
1936 return 0 ;
1937 } ;
1938
1939 if (psf->read_int == NULL || psf->seek == NULL)
1940 { psf->error = SFE_UNIMPLEMENTED ;
1941 return 0 ;
1942 } ;
1943
1944 if (psf->last_op != SFM_READ)
1945 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
1946 return 0 ;
1947
1948 count = psf->read_int (psf, ptr, frames * psf->sf.channels) ;
1949
1950 if (psf->read_current + count / psf->sf.channels <= psf->sf.frames)
1951 psf->read_current += count / psf->sf.channels ;
1952 else
1953 { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ;
1954 extra = frames * psf->sf.channels - count ;
1955 psf_memset (ptr + count, 0, extra * sizeof (int)) ;
1956 psf->read_current = psf->sf.frames ;
1957 } ;
1958
1959 psf->last_op = SFM_READ ;
1960
1961 return count / psf->sf.channels ;
1962 } /* sf_readf_int */
1963
1964 /*------------------------------------------------------------------------------
1965 */
1966
1967 sf_count_t
sf_read_float(SNDFILE * sndfile,float * ptr,sf_count_t len)1968 sf_read_float (SNDFILE *sndfile, float *ptr, sf_count_t len)
1969 { SF_PRIVATE *psf ;
1970 sf_count_t count, extra ;
1971
1972 if (len == 0)
1973 return 0 ;
1974
1975 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
1976
1977 if (len <= 0)
1978 { psf->error = SFE_NEGATIVE_RW_LEN ;
1979 return 0 ;
1980 } ;
1981
1982 if (psf->file.mode == SFM_WRITE)
1983 { psf->error = SFE_NOT_READMODE ;
1984 return 0 ;
1985 } ;
1986
1987 if (len % psf->sf.channels)
1988 { psf->error = SFE_BAD_READ_ALIGN ;
1989 return 0 ;
1990 } ;
1991
1992 if (psf->read_current >= psf->sf.frames)
1993 { psf_memset (ptr, 0, len * sizeof (float)) ;
1994 return 0 ;
1995 } ;
1996
1997 if (psf->read_float == NULL || psf->seek == NULL)
1998 { psf->error = SFE_UNIMPLEMENTED ;
1999 return 0 ;
2000 } ;
2001
2002 if (psf->last_op != SFM_READ)
2003 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
2004 return 0 ;
2005
2006 count = psf->read_float (psf, ptr, len) ;
2007
2008 if (psf->read_current + count / psf->sf.channels <= psf->sf.frames)
2009 psf->read_current += count / psf->sf.channels ;
2010 else
2011 { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ;
2012 extra = len - count ;
2013 psf_memset (ptr + count, 0, extra * sizeof (float)) ;
2014 psf->read_current = psf->sf.frames ;
2015 } ;
2016
2017 psf->last_op = SFM_READ ;
2018
2019 return count ;
2020 } /* sf_read_float */
2021
2022 sf_count_t
sf_readf_float(SNDFILE * sndfile,float * ptr,sf_count_t frames)2023 sf_readf_float (SNDFILE *sndfile, float *ptr, sf_count_t frames)
2024 { SF_PRIVATE *psf ;
2025 sf_count_t count, extra ;
2026
2027 if (frames == 0)
2028 return 0 ;
2029
2030 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2031
2032 if (frames <= 0)
2033 { psf->error = SFE_NEGATIVE_RW_LEN ;
2034 return 0 ;
2035 } ;
2036
2037 if (psf->file.mode == SFM_WRITE)
2038 { psf->error = SFE_NOT_READMODE ;
2039 return 0 ;
2040 } ;
2041
2042 if (psf->read_current >= psf->sf.frames)
2043 { psf_memset (ptr, 0, frames * psf->sf.channels * sizeof (float)) ;
2044 return 0 ;
2045 } ;
2046
2047 if (psf->read_float == NULL || psf->seek == NULL)
2048 { psf->error = SFE_UNIMPLEMENTED ;
2049 return 0 ;
2050 } ;
2051
2052 if (psf->last_op != SFM_READ)
2053 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
2054 return 0 ;
2055
2056 count = psf->read_float (psf, ptr, frames * psf->sf.channels) ;
2057
2058 if (psf->read_current + count / psf->sf.channels <= psf->sf.frames)
2059 psf->read_current += count / psf->sf.channels ;
2060 else
2061 { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ;
2062 extra = frames * psf->sf.channels - count ;
2063 psf_memset (ptr + count, 0, extra * sizeof (float)) ;
2064 psf->read_current = psf->sf.frames ;
2065 } ;
2066
2067 psf->last_op = SFM_READ ;
2068
2069 return count / psf->sf.channels ;
2070 } /* sf_readf_float */
2071
2072 /*------------------------------------------------------------------------------
2073 */
2074
2075 sf_count_t
sf_read_double(SNDFILE * sndfile,double * ptr,sf_count_t len)2076 sf_read_double (SNDFILE *sndfile, double *ptr, sf_count_t len)
2077 { SF_PRIVATE *psf ;
2078 sf_count_t count, extra ;
2079
2080 if (len == 0)
2081 return 0 ;
2082
2083 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2084
2085 if (len <= 0)
2086 { psf->error = SFE_NEGATIVE_RW_LEN ;
2087 return 0 ;
2088 } ;
2089
2090 if (psf->file.mode == SFM_WRITE)
2091 { psf->error = SFE_NOT_READMODE ;
2092 return 0 ;
2093 } ;
2094
2095 if (len % psf->sf.channels)
2096 { psf->error = SFE_BAD_READ_ALIGN ;
2097 return 0 ;
2098 } ;
2099
2100 if (psf->read_current >= psf->sf.frames)
2101 { psf_memset (ptr, 0, len * sizeof (double)) ;
2102 return 0 ;
2103 } ;
2104
2105 if (psf->read_double == NULL || psf->seek == NULL)
2106 { psf->error = SFE_UNIMPLEMENTED ;
2107 return 0 ;
2108 } ;
2109
2110 if (psf->last_op != SFM_READ)
2111 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
2112 return 0 ;
2113
2114 count = psf->read_double (psf, ptr, len) ;
2115
2116 if (psf->read_current + count / psf->sf.channels <= psf->sf.frames)
2117 psf->read_current += count / psf->sf.channels ;
2118 else
2119 { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ;
2120 extra = len - count ;
2121 psf_memset (ptr + count, 0, extra * sizeof (double)) ;
2122 psf->read_current = psf->sf.frames ;
2123 } ;
2124
2125 psf->last_op = SFM_READ ;
2126
2127 return count ;
2128 } /* sf_read_double */
2129
2130 sf_count_t
sf_readf_double(SNDFILE * sndfile,double * ptr,sf_count_t frames)2131 sf_readf_double (SNDFILE *sndfile, double *ptr, sf_count_t frames)
2132 { SF_PRIVATE *psf ;
2133 sf_count_t count, extra ;
2134
2135 if (frames == 0)
2136 return 0 ;
2137
2138 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2139
2140 if (frames <= 0)
2141 { psf->error = SFE_NEGATIVE_RW_LEN ;
2142 return 0 ;
2143 } ;
2144
2145 if (psf->file.mode == SFM_WRITE)
2146 { psf->error = SFE_NOT_READMODE ;
2147 return 0 ;
2148 } ;
2149
2150 if (psf->read_current >= psf->sf.frames)
2151 { psf_memset (ptr, 0, frames * psf->sf.channels * sizeof (double)) ;
2152 return 0 ;
2153 } ;
2154
2155 if (psf->read_double == NULL || psf->seek == NULL)
2156 { psf->error = SFE_UNIMPLEMENTED ;
2157 return 0 ;
2158 } ;
2159
2160 if (psf->last_op != SFM_READ)
2161 if (psf->seek (psf, SFM_READ, psf->read_current) < 0)
2162 return 0 ;
2163
2164 count = psf->read_double (psf, ptr, frames * psf->sf.channels) ;
2165
2166 if (psf->read_current + count / psf->sf.channels <= psf->sf.frames)
2167 psf->read_current += count / psf->sf.channels ;
2168 else
2169 { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ;
2170 extra = frames * psf->sf.channels - count ;
2171 psf_memset (ptr + count, 0, extra * sizeof (double)) ;
2172 psf->read_current = psf->sf.frames ;
2173 } ;
2174
2175 psf->last_op = SFM_READ ;
2176
2177 return count / psf->sf.channels ;
2178 } /* sf_readf_double */
2179
2180 /*------------------------------------------------------------------------------
2181 */
2182
2183 sf_count_t
sf_write_raw(SNDFILE * sndfile,const void * ptr,sf_count_t len)2184 sf_write_raw (SNDFILE *sndfile, const void *ptr, sf_count_t len)
2185 { SF_PRIVATE *psf ;
2186 sf_count_t count ;
2187 int bytewidth, blockwidth ;
2188
2189 if (len == 0)
2190 return 0 ;
2191
2192 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2193
2194 if (len <= 0)
2195 { psf->error = SFE_NEGATIVE_RW_LEN ;
2196 return 0 ;
2197 } ;
2198
2199 bytewidth = (psf->bytewidth > 0) ? psf->bytewidth : 1 ;
2200 blockwidth = (psf->blockwidth > 0) ? psf->blockwidth : 1 ;
2201
2202 if (psf->file.mode == SFM_READ)
2203 { psf->error = SFE_NOT_WRITEMODE ;
2204 return 0 ;
2205 } ;
2206
2207 if (len % (psf->sf.channels * bytewidth))
2208 { psf->error = SFE_BAD_WRITE_ALIGN ;
2209 return 0 ;
2210 } ;
2211
2212 if (psf->last_op != SFM_WRITE)
2213 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2214 return 0 ;
2215
2216 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2217 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2218 return 0 ;
2219 } ;
2220 psf->have_written = SF_TRUE ;
2221
2222 count = psf_fwrite (ptr, 1, len, psf) ;
2223
2224 psf->write_current += count / blockwidth ;
2225
2226 psf->last_op = SFM_WRITE ;
2227
2228 if (psf->write_current > psf->sf.frames)
2229 { psf->sf.frames = psf->write_current ;
2230 psf->dataend = 0 ;
2231 } ;
2232
2233 if (psf->auto_header && psf->write_header != NULL)
2234 psf->write_header (psf, SF_TRUE) ;
2235
2236 return count ;
2237 } /* sf_write_raw */
2238
2239 /*------------------------------------------------------------------------------
2240 */
2241
2242 sf_count_t
sf_write_short(SNDFILE * sndfile,const short * ptr,sf_count_t len)2243 sf_write_short (SNDFILE *sndfile, const short *ptr, sf_count_t len)
2244 { SF_PRIVATE *psf ;
2245 sf_count_t count ;
2246
2247 if (len == 0)
2248 return 0 ;
2249
2250 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2251
2252 if (len <= 0)
2253 { psf->error = SFE_NEGATIVE_RW_LEN ;
2254 return 0 ;
2255 } ;
2256
2257 if (psf->file.mode == SFM_READ)
2258 { psf->error = SFE_NOT_WRITEMODE ;
2259 return 0 ;
2260 } ;
2261
2262 if (len % psf->sf.channels)
2263 { psf->error = SFE_BAD_WRITE_ALIGN ;
2264 return 0 ;
2265 } ;
2266
2267 if (psf->write_short == NULL || psf->seek == NULL)
2268 { psf->error = SFE_UNIMPLEMENTED ;
2269 return 0 ;
2270 } ;
2271
2272 if (psf->last_op != SFM_WRITE)
2273 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2274 return 0 ;
2275
2276 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2277 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2278 return 0 ;
2279 } ;
2280 psf->have_written = SF_TRUE ;
2281
2282 count = psf->write_short (psf, ptr, len) ;
2283
2284 psf->write_current += count / psf->sf.channels ;
2285
2286 psf->last_op = SFM_WRITE ;
2287
2288 if (psf->write_current > psf->sf.frames)
2289 { psf->sf.frames = psf->write_current ;
2290 psf->dataend = 0 ;
2291 } ;
2292
2293 if (psf->auto_header && psf->write_header != NULL)
2294 psf->write_header (psf, SF_TRUE) ;
2295
2296 return count ;
2297 } /* sf_write_short */
2298
2299 sf_count_t
sf_writef_short(SNDFILE * sndfile,const short * ptr,sf_count_t frames)2300 sf_writef_short (SNDFILE *sndfile, const short *ptr, sf_count_t frames)
2301 { SF_PRIVATE *psf ;
2302 sf_count_t count ;
2303
2304 if (frames == 0)
2305 return 0 ;
2306
2307 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2308
2309 if (frames <= 0)
2310 { psf->error = SFE_NEGATIVE_RW_LEN ;
2311 return 0 ;
2312 } ;
2313
2314 if (psf->file.mode == SFM_READ)
2315 { psf->error = SFE_NOT_WRITEMODE ;
2316 return 0 ;
2317 } ;
2318
2319 if (psf->write_short == NULL || psf->seek == NULL)
2320 { psf->error = SFE_UNIMPLEMENTED ;
2321 return 0 ;
2322 } ;
2323
2324 if (psf->last_op != SFM_WRITE)
2325 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2326 return 0 ;
2327
2328 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2329 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2330 return 0 ;
2331 } ;
2332 psf->have_written = SF_TRUE ;
2333
2334 count = psf->write_short (psf, ptr, frames * psf->sf.channels) ;
2335
2336 psf->write_current += count / psf->sf.channels ;
2337
2338 psf->last_op = SFM_WRITE ;
2339
2340 if (psf->write_current > psf->sf.frames)
2341 { psf->sf.frames = psf->write_current ;
2342 psf->dataend = 0 ;
2343 } ;
2344
2345 if (psf->auto_header && psf->write_header != NULL)
2346 psf->write_header (psf, SF_TRUE) ;
2347
2348 return count / psf->sf.channels ;
2349 } /* sf_writef_short */
2350
2351 /*------------------------------------------------------------------------------
2352 */
2353
2354 sf_count_t
sf_write_int(SNDFILE * sndfile,const int * ptr,sf_count_t len)2355 sf_write_int (SNDFILE *sndfile, const int *ptr, sf_count_t len)
2356 { SF_PRIVATE *psf ;
2357 sf_count_t count ;
2358
2359 if (len == 0)
2360 return 0 ;
2361
2362 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2363
2364 if (len <= 0)
2365 { psf->error = SFE_NEGATIVE_RW_LEN ;
2366 return 0 ;
2367 } ;
2368
2369 if (psf->file.mode == SFM_READ)
2370 { psf->error = SFE_NOT_WRITEMODE ;
2371 return 0 ;
2372 } ;
2373
2374 if (len % psf->sf.channels)
2375 { psf->error = SFE_BAD_WRITE_ALIGN ;
2376 return 0 ;
2377 } ;
2378
2379 if (psf->write_int == NULL || psf->seek == NULL)
2380 { psf->error = SFE_UNIMPLEMENTED ;
2381 return 0 ;
2382 } ;
2383
2384 if (psf->last_op != SFM_WRITE)
2385 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2386 return 0 ;
2387
2388 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2389 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2390 return 0 ;
2391 } ;
2392 psf->have_written = SF_TRUE ;
2393
2394 count = psf->write_int (psf, ptr, len) ;
2395
2396 psf->write_current += count / psf->sf.channels ;
2397
2398 psf->last_op = SFM_WRITE ;
2399
2400 if (psf->write_current > psf->sf.frames)
2401 { psf->sf.frames = psf->write_current ;
2402 psf->dataend = 0 ;
2403 } ;
2404
2405 if (psf->auto_header && psf->write_header != NULL)
2406 psf->write_header (psf, SF_TRUE) ;
2407
2408 return count ;
2409 } /* sf_write_int */
2410
2411 sf_count_t
sf_writef_int(SNDFILE * sndfile,const int * ptr,sf_count_t frames)2412 sf_writef_int (SNDFILE *sndfile, const int *ptr, sf_count_t frames)
2413 { SF_PRIVATE *psf ;
2414 sf_count_t count ;
2415
2416 if (frames == 0)
2417 return 0 ;
2418
2419 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2420
2421 if (frames <= 0)
2422 { psf->error = SFE_NEGATIVE_RW_LEN ;
2423 return 0 ;
2424 } ;
2425
2426 if (psf->file.mode == SFM_READ)
2427 { psf->error = SFE_NOT_WRITEMODE ;
2428 return 0 ;
2429 } ;
2430
2431 if (psf->write_int == NULL || psf->seek == NULL)
2432 { psf->error = SFE_UNIMPLEMENTED ;
2433 return 0 ;
2434 } ;
2435
2436 if (psf->last_op != SFM_WRITE)
2437 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2438 return 0 ;
2439
2440 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2441 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2442 return 0 ;
2443 } ;
2444 psf->have_written = SF_TRUE ;
2445
2446 count = psf->write_int (psf, ptr, frames * psf->sf.channels) ;
2447
2448 psf->write_current += count / psf->sf.channels ;
2449
2450 psf->last_op = SFM_WRITE ;
2451
2452 if (psf->write_current > psf->sf.frames)
2453 { psf->sf.frames = psf->write_current ;
2454 psf->dataend = 0 ;
2455 } ;
2456
2457 if (psf->auto_header && psf->write_header != NULL)
2458 psf->write_header (psf, SF_TRUE) ;
2459
2460 return count / psf->sf.channels ;
2461 } /* sf_writef_int */
2462
2463 /*------------------------------------------------------------------------------
2464 */
2465
2466 sf_count_t
sf_write_float(SNDFILE * sndfile,const float * ptr,sf_count_t len)2467 sf_write_float (SNDFILE *sndfile, const float *ptr, sf_count_t len)
2468 { SF_PRIVATE *psf ;
2469 sf_count_t count ;
2470
2471 if (len == 0)
2472 return 0 ;
2473
2474 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2475
2476 if (len <= 0)
2477 { psf->error = SFE_NEGATIVE_RW_LEN ;
2478 return 0 ;
2479 } ;
2480
2481 if (psf->file.mode == SFM_READ)
2482 { psf->error = SFE_NOT_WRITEMODE ;
2483 return 0 ;
2484 } ;
2485
2486 if (len % psf->sf.channels)
2487 { psf->error = SFE_BAD_WRITE_ALIGN ;
2488 return 0 ;
2489 } ;
2490
2491 if (psf->write_float == NULL || psf->seek == NULL)
2492 { psf->error = SFE_UNIMPLEMENTED ;
2493 return 0 ;
2494 } ;
2495
2496 if (psf->last_op != SFM_WRITE)
2497 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2498 return 0 ;
2499
2500 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2501 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2502 return 0 ;
2503 } ;
2504 psf->have_written = SF_TRUE ;
2505
2506 count = psf->write_float (psf, ptr, len) ;
2507
2508 psf->write_current += count / psf->sf.channels ;
2509
2510 psf->last_op = SFM_WRITE ;
2511
2512 if (psf->write_current > psf->sf.frames)
2513 { psf->sf.frames = psf->write_current ;
2514 psf->dataend = 0 ;
2515 } ;
2516
2517 if (psf->auto_header && psf->write_header != NULL)
2518 psf->write_header (psf, SF_TRUE) ;
2519
2520 return count ;
2521 } /* sf_write_float */
2522
2523 sf_count_t
sf_writef_float(SNDFILE * sndfile,const float * ptr,sf_count_t frames)2524 sf_writef_float (SNDFILE *sndfile, const float *ptr, sf_count_t frames)
2525 { SF_PRIVATE *psf ;
2526 sf_count_t count ;
2527
2528 if (frames == 0)
2529 return 0 ;
2530
2531 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2532
2533 if (frames <= 0)
2534 { psf->error = SFE_NEGATIVE_RW_LEN ;
2535 return 0 ;
2536 } ;
2537
2538 if (psf->file.mode == SFM_READ)
2539 { psf->error = SFE_NOT_WRITEMODE ;
2540 return 0 ;
2541 } ;
2542
2543 if (psf->write_float == NULL || psf->seek == NULL)
2544 { psf->error = SFE_UNIMPLEMENTED ;
2545 return 0 ;
2546 } ;
2547
2548 if (psf->last_op != SFM_WRITE)
2549 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2550 return 0 ;
2551
2552 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2553 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2554 return 0 ;
2555 } ;
2556 psf->have_written = SF_TRUE ;
2557
2558 count = psf->write_float (psf, ptr, frames * psf->sf.channels) ;
2559
2560 psf->write_current += count / psf->sf.channels ;
2561
2562 psf->last_op = SFM_WRITE ;
2563
2564 if (psf->write_current > psf->sf.frames)
2565 { psf->sf.frames = psf->write_current ;
2566 psf->dataend = 0 ;
2567 } ;
2568
2569 if (psf->auto_header && psf->write_header != NULL)
2570 psf->write_header (psf, SF_TRUE) ;
2571
2572 return count / psf->sf.channels ;
2573 } /* sf_writef_float */
2574
2575 /*------------------------------------------------------------------------------
2576 */
2577
2578 sf_count_t
sf_write_double(SNDFILE * sndfile,const double * ptr,sf_count_t len)2579 sf_write_double (SNDFILE *sndfile, const double *ptr, sf_count_t len)
2580 { SF_PRIVATE *psf ;
2581 sf_count_t count ;
2582
2583 if (len == 0)
2584 return 0 ;
2585
2586 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2587
2588 if (len <= 0)
2589 { psf->error = SFE_NEGATIVE_RW_LEN ;
2590 return 0 ;
2591 } ;
2592
2593 if (psf->file.mode == SFM_READ)
2594 { psf->error = SFE_NOT_WRITEMODE ;
2595 return 0 ;
2596 } ;
2597
2598 if (len % psf->sf.channels)
2599 { psf->error = SFE_BAD_WRITE_ALIGN ;
2600 return 0 ;
2601 } ;
2602
2603 if (psf->write_double == NULL || psf->seek == NULL)
2604 { psf->error = SFE_UNIMPLEMENTED ;
2605 return 0 ;
2606 } ;
2607
2608 if (psf->last_op != SFM_WRITE)
2609 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2610 return 0 ;
2611
2612 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2613 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2614 return 0 ;
2615 } ;
2616 psf->have_written = SF_TRUE ;
2617
2618 count = psf->write_double (psf, ptr, len) ;
2619
2620 psf->write_current += count / psf->sf.channels ;
2621
2622 psf->last_op = SFM_WRITE ;
2623
2624 if (psf->write_current > psf->sf.frames)
2625 { psf->sf.frames = psf->write_current ;
2626 psf->dataend = 0 ;
2627 } ;
2628
2629 if (psf->auto_header && psf->write_header != NULL)
2630 psf->write_header (psf, SF_TRUE) ;
2631
2632 return count ;
2633 } /* sf_write_double */
2634
2635 sf_count_t
sf_writef_double(SNDFILE * sndfile,const double * ptr,sf_count_t frames)2636 sf_writef_double (SNDFILE *sndfile, const double *ptr, sf_count_t frames)
2637 { SF_PRIVATE *psf ;
2638 sf_count_t count ;
2639
2640 if (frames == 0)
2641 return 0 ;
2642
2643 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
2644
2645 if (frames <= 0)
2646 { psf->error = SFE_NEGATIVE_RW_LEN ;
2647 return 0 ;
2648 } ;
2649
2650 if (psf->file.mode == SFM_READ)
2651 { psf->error = SFE_NOT_WRITEMODE ;
2652 return 0 ;
2653 } ;
2654
2655 if (psf->write_double == NULL || psf->seek == NULL)
2656 { psf->error = SFE_UNIMPLEMENTED ;
2657 return 0 ;
2658 } ;
2659
2660 if (psf->last_op != SFM_WRITE)
2661 if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0)
2662 return 0 ;
2663
2664 if (psf->have_written == SF_FALSE && psf->write_header != NULL)
2665 { if ((psf->error = psf->write_header (psf, SF_FALSE)))
2666 return 0 ;
2667 } ;
2668 psf->have_written = SF_TRUE ;
2669
2670 count = psf->write_double (psf, ptr, frames * psf->sf.channels) ;
2671
2672 psf->write_current += count / psf->sf.channels ;
2673
2674 psf->last_op = SFM_WRITE ;
2675
2676 if (psf->write_current > psf->sf.frames)
2677 { psf->sf.frames = psf->write_current ;
2678 psf->dataend = 0 ;
2679 } ;
2680
2681 if (psf->auto_header && psf->write_header != NULL)
2682 psf->write_header (psf, SF_TRUE) ;
2683
2684 return count / psf->sf.channels ;
2685 } /* sf_writef_double */
2686
2687 /*=========================================================================
2688 ** Private functions.
2689 */
2690
2691 static int
try_resource_fork(SF_PRIVATE * psf)2692 try_resource_fork (SF_PRIVATE * psf)
2693 { int old_error = psf->error ;
2694
2695 /* Set READ mode now, to see if resource fork exists. */
2696 psf->rsrc.mode = SFM_READ ;
2697 if (psf_open_rsrc (psf) != 0)
2698 { psf->error = old_error ;
2699 return 0 ;
2700 } ;
2701
2702 /* More checking here. */
2703 psf_log_printf (psf, "Resource fork : %s\n", psf->rsrc.path) ;
2704
2705 return SF_FORMAT_SD2 ;
2706 } /* try_resource_fork */
2707
2708 static int
format_from_extension(SF_PRIVATE * psf)2709 format_from_extension (SF_PRIVATE *psf)
2710 { char *cptr ;
2711 char buffer [16] ;
2712 int format = 0 ;
2713
2714 if ((cptr = strrchr (psf->file.name, '.')) == NULL)
2715 return 0 ;
2716
2717 cptr ++ ;
2718 if (strlen (cptr) > sizeof (buffer) - 1)
2719 return 0 ;
2720
2721 psf_strlcpy (buffer, sizeof (buffer), cptr) ;
2722 buffer [sizeof (buffer) - 1] = 0 ;
2723
2724 /* Convert everything in the buffer to lower case. */
2725 cptr = buffer ;
2726 while (*cptr)
2727 { *cptr = tolower (*cptr) ;
2728 cptr ++ ;
2729 } ;
2730
2731 cptr = buffer ;
2732
2733 if (strcmp (cptr, "au") == 0)
2734 { psf->sf.channels = 1 ;
2735 psf->sf.samplerate = 8000 ;
2736 format = SF_FORMAT_RAW | SF_FORMAT_ULAW ;
2737 }
2738 else if (strcmp (cptr, "snd") == 0)
2739 { psf->sf.channels = 1 ;
2740 psf->sf.samplerate = 8000 ;
2741 format = SF_FORMAT_RAW | SF_FORMAT_ULAW ;
2742 }
2743
2744 else if (strcmp (cptr, "vox") == 0 || strcmp (cptr, "vox8") == 0)
2745 { psf->sf.channels = 1 ;
2746 psf->sf.samplerate = 8000 ;
2747 format = SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM ;
2748 }
2749 else if (strcmp (cptr, "vox6") == 0)
2750 { psf->sf.channels = 1 ;
2751 psf->sf.samplerate = 6000 ;
2752 format = SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM ;
2753 }
2754 else if (strcmp (cptr, "gsm") == 0)
2755 { psf->sf.channels = 1 ;
2756 psf->sf.samplerate = 8000 ;
2757 format = SF_FORMAT_RAW | SF_FORMAT_GSM610 ;
2758 }
2759 else if (strcmp (cptr, "mp3") == 0)
2760 { /*
2761 * MPEG streams are quite tollerate of crap. If we couldn't identify a
2762 * MP3 stream, but it has a .mp3 extension, let libmpg123 have a try.
2763 */
2764 format = SF_FORMAT_MPEG ;
2765 }
2766
2767 /* For RAW files, make sure the dataoffset if set correctly. */
2768 if ((SF_CONTAINER (format)) == SF_FORMAT_RAW)
2769 psf->dataoffset = 0 ;
2770
2771 return format ;
2772 } /* format_from_extension */
2773
2774 static int
identify_mpeg(uint32_t marker)2775 identify_mpeg (uint32_t marker)
2776 { if ((marker & MAKE_MARKER (0xFF, 0xE0, 0, 0)) == MAKE_MARKER (0xFF, 0xE0, 0, 0) && /* Frame sync */
2777 (marker & MAKE_MARKER (0, 0x18, 0, 0)) != MAKE_MARKER (0, 0x08, 0, 0) && /* Valid MPEG version */
2778 (marker & MAKE_MARKER (0, 0x06, 0, 0)) != MAKE_MARKER (0, 0, 0, 0) && /* Valid layer description */
2779 (marker & MAKE_MARKER (0, 0, 0xF0, 0)) != MAKE_MARKER (0, 0, 0xF0, 0) && /* Valid bitrate */
2780 (marker & MAKE_MARKER (0, 0, 0x0C, 0)) != MAKE_MARKER (0, 0, 0x0C, 0)) /* Valid samplerate */
2781 return SF_FORMAT_MPEG ;
2782 return 0 ;
2783 } /* identify_mpeg */
2784
2785 static int
guess_file_type(SF_PRIVATE * psf)2786 guess_file_type (SF_PRIVATE *psf)
2787 { uint32_t buffer [3], format ;
2788
2789 retry:
2790 if (psf_binheader_readf (psf, "b", &buffer, SIGNED_SIZEOF (buffer)) != SIGNED_SIZEOF (buffer))
2791 { psf->error = SFE_BAD_FILE_READ ;
2792 return 0 ;
2793 } ;
2794
2795 if ((buffer [0] == MAKE_MARKER ('R', 'I', 'F', 'F') || buffer [0] == MAKE_MARKER ('R', 'I', 'F', 'X'))
2796 && buffer [2] == MAKE_MARKER ('W', 'A', 'V', 'E'))
2797 return SF_FORMAT_WAV ;
2798
2799 if (buffer [0] == MAKE_MARKER ('F', 'O', 'R', 'M'))
2800 { if (buffer [2] == MAKE_MARKER ('A', 'I', 'F', 'F') || buffer [2] == MAKE_MARKER ('A', 'I', 'F', 'C'))
2801 return SF_FORMAT_AIFF ;
2802 if (buffer [2] == MAKE_MARKER ('8', 'S', 'V', 'X') || buffer [2] == MAKE_MARKER ('1', '6', 'S', 'V'))
2803 return SF_FORMAT_SVX ;
2804 return 0 ;
2805 } ;
2806
2807 if (buffer [0] == MAKE_MARKER ('.', 's', 'n', 'd') || buffer [0] == MAKE_MARKER ('d', 'n', 's', '.'))
2808 return SF_FORMAT_AU ;
2809
2810 if ((buffer [0] == MAKE_MARKER ('f', 'a', 'p', ' ') || buffer [0] == MAKE_MARKER (' ', 'p', 'a', 'f')))
2811 return SF_FORMAT_PAF ;
2812
2813 if (buffer [0] == MAKE_MARKER ('N', 'I', 'S', 'T'))
2814 return SF_FORMAT_NIST ;
2815
2816 if (buffer [0] == MAKE_MARKER ('C', 'r', 'e', 'a') && buffer [1] == MAKE_MARKER ('t', 'i', 'v', 'e'))
2817 return SF_FORMAT_VOC ;
2818
2819 if ((buffer [0] & MAKE_MARKER (0xFF, 0xFF, 0xF8, 0xFF)) == MAKE_MARKER (0x64, 0xA3, 0x00, 0x00) ||
2820 (buffer [0] & MAKE_MARKER (0xFF, 0xF8, 0xFF, 0xFF)) == MAKE_MARKER (0x00, 0x00, 0xA3, 0x64))
2821 return SF_FORMAT_IRCAM ;
2822
2823 if (buffer [0] == MAKE_MARKER ('r', 'i', 'f', 'f'))
2824 return SF_FORMAT_W64 ;
2825
2826 if (buffer [0] == MAKE_MARKER (0, 0, 0x03, 0xE8) && buffer [1] == MAKE_MARKER (0, 0, 0, 1) &&
2827 buffer [2] == MAKE_MARKER (0, 0, 0, 1))
2828 return SF_FORMAT_MAT4 ;
2829
2830 if (buffer [0] == MAKE_MARKER (0, 0, 0, 0) && buffer [1] == MAKE_MARKER (1, 0, 0, 0) &&
2831 buffer [2] == MAKE_MARKER (1, 0, 0, 0))
2832 return SF_FORMAT_MAT4 ;
2833
2834 if (buffer [0] == MAKE_MARKER ('M', 'A', 'T', 'L') && buffer [1] == MAKE_MARKER ('A', 'B', ' ', '5'))
2835 return SF_FORMAT_MAT5 ;
2836
2837 if (buffer [0] == MAKE_MARKER ('P', 'V', 'F', '1'))
2838 return SF_FORMAT_PVF ;
2839
2840 if (buffer [0] == MAKE_MARKER ('E', 'x', 't', 'e') && buffer [1] == MAKE_MARKER ('n', 'd', 'e', 'd') &&
2841 buffer [2] == MAKE_MARKER (' ', 'I', 'n', 's'))
2842 return SF_FORMAT_XI ;
2843
2844 if (buffer [0] == MAKE_MARKER ('c', 'a', 'f', 'f') && buffer [2] == MAKE_MARKER ('d', 'e', 's', 'c'))
2845 return SF_FORMAT_CAF ;
2846
2847 if (buffer [0] == MAKE_MARKER ('O', 'g', 'g', 'S'))
2848 return SF_FORMAT_OGG ;
2849
2850 if (buffer [0] == MAKE_MARKER ('A', 'L', 'a', 'w') && buffer [1] == MAKE_MARKER ('S', 'o', 'u', 'n')
2851 && buffer [2] == MAKE_MARKER ('d', 'F', 'i', 'l'))
2852 return SF_FORMAT_WVE ;
2853
2854 if (buffer [0] == MAKE_MARKER ('D', 'i', 'a', 'm') && buffer [1] == MAKE_MARKER ('o', 'n', 'd', 'W')
2855 && buffer [2] == MAKE_MARKER ('a', 'r', 'e', ' '))
2856 return SF_FORMAT_DWD ;
2857
2858 if (buffer [0] == MAKE_MARKER ('L', 'M', '8', '9') || buffer [0] == MAKE_MARKER ('5', '3', 0, 0))
2859 return SF_FORMAT_TXW ;
2860
2861 if ((buffer [0] & MAKE_MARKER (0xFF, 0xFF, 0x80, 0xFF)) == MAKE_MARKER (0xF0, 0x7E, 0, 0x01))
2862 return SF_FORMAT_SDS ;
2863
2864 if ((buffer [0] & MAKE_MARKER (0xFF, 0xFF, 0, 0)) == MAKE_MARKER (1, 4, 0, 0))
2865 return SF_FORMAT_MPC2K ;
2866
2867 if (buffer [0] == MAKE_MARKER ('C', 'A', 'T', ' ') && buffer [2] == MAKE_MARKER ('R', 'E', 'X', '2'))
2868 return SF_FORMAT_REX2 ;
2869
2870 if (buffer [0] == MAKE_MARKER (0x30, 0x26, 0xB2, 0x75) && buffer [1] == MAKE_MARKER (0x8E, 0x66, 0xCF, 0x11))
2871 return 0 /*-SF_FORMAT_WMA-*/ ;
2872
2873 /* HMM (Hidden Markov Model) Tool Kit. */
2874 if (buffer [2] == MAKE_MARKER (0, 2, 0, 0) && 2 * ((int64_t) BE2H_32 (buffer [0])) + 12 == psf->filelength)
2875 return SF_FORMAT_HTK ;
2876
2877 if (buffer [0] == MAKE_MARKER ('f', 'L', 'a', 'C'))
2878 return SF_FORMAT_FLAC ;
2879
2880 if (buffer [0] == MAKE_MARKER ('2', 'B', 'I', 'T'))
2881 return SF_FORMAT_AVR ;
2882
2883 if (buffer [0] == MAKE_MARKER ('R', 'F', '6', '4') && buffer [2] == MAKE_MARKER ('W', 'A', 'V', 'E'))
2884 return SF_FORMAT_RF64 ;
2885
2886 if (buffer [0] == MAKE_MARKER ('I', 'D', '3', 2) || buffer [0] == MAKE_MARKER ('I', 'D', '3', 3)
2887 || buffer [0] == MAKE_MARKER ('I', 'D', '3', 4))
2888 { psf_log_printf (psf, "Found 'ID3' marker.\n") ;
2889 if (id3_skip (psf))
2890 goto retry ;
2891 return 0 ;
2892 } ;
2893
2894 /* ID3v2 tags + MPEG */
2895 if (psf->id3_header.len > 0 && (format = identify_mpeg (buffer [0])) != 0)
2896 return format ;
2897
2898 /* Turtle Beach SMP 16-bit */
2899 if (buffer [0] == MAKE_MARKER ('S', 'O', 'U', 'N') && buffer [1] == MAKE_MARKER ('D', ' ', 'S', 'A'))
2900 return 0 ;
2901
2902 /* Yamaha sampler format. */
2903 if (buffer [0] == MAKE_MARKER ('S', 'Y', '8', '0') || buffer [0] == MAKE_MARKER ('S', 'Y', '8', '5'))
2904 return 0 ;
2905
2906 if (buffer [0] == MAKE_MARKER ('a', 'j', 'k', 'g'))
2907 return 0 /*-SF_FORMAT_SHN-*/ ;
2908
2909 /* This must be (almost) the last one. */
2910 if (psf->filelength > 0 && (format = try_resource_fork (psf)) != 0)
2911 return format ;
2912
2913 /* MPEG with no ID3v2 tags. Only have the MPEG sync header for
2914 * identification and it is quite brief, and prone to false positives.
2915 * Check for this last, even after resource forks. */
2916 if (psf->id3_header.len == 0 && (format = identify_mpeg (buffer [0])) != 0)
2917 return format ;
2918
2919 return 0 ;
2920 } /* guess_file_type */
2921
2922
2923 static int
validate_sfinfo(SF_INFO * sfinfo)2924 validate_sfinfo (SF_INFO *sfinfo)
2925 { if (sfinfo->samplerate < 1)
2926 return 0 ;
2927 if (sfinfo->frames < 0)
2928 return 0 ;
2929 if ((sfinfo->channels < 1) || (sfinfo->channels > SF_MAX_CHANNELS))
2930 return 0 ;
2931 if ((SF_CONTAINER (sfinfo->format)) == 0)
2932 return 0 ;
2933 if ((SF_CODEC (sfinfo->format)) == 0)
2934 return 0 ;
2935 if (sfinfo->sections < 1)
2936 return 0 ;
2937 return 1 ;
2938 } /* validate_sfinfo */
2939
2940 static int
validate_psf(SF_PRIVATE * psf)2941 validate_psf (SF_PRIVATE *psf)
2942 {
2943 if (psf->datalength < 0)
2944 { psf_log_printf (psf, "Invalid SF_PRIVATE field : datalength == %D.\n", psf->datalength) ;
2945 return 0 ;
2946 } ;
2947 if (psf->dataoffset < 0)
2948 { psf_log_printf (psf, "Invalid SF_PRIVATE field : dataoffset == %D.\n", psf->dataoffset) ;
2949 return 0 ;
2950 } ;
2951 if (psf->blockwidth && psf->blockwidth != psf->sf.channels * psf->bytewidth)
2952 { psf_log_printf (psf, "Invalid SF_PRIVATE field : channels * bytewidth == %d.\n",
2953 psf->sf.channels * psf->bytewidth) ;
2954 return 0 ;
2955 } ;
2956 return 1 ;
2957 } /* validate_psf */
2958
2959 static void
save_header_info(SF_PRIVATE * psf)2960 save_header_info (SF_PRIVATE *psf)
2961 { snprintf (sf_parselog, sizeof (sf_parselog), "%s", psf->parselog.buf) ;
2962 } /* save_header_info */
2963
2964 /*==============================================================================
2965 */
2966
2967 static int
psf_close(SF_PRIVATE * psf)2968 psf_close (SF_PRIVATE *psf)
2969 { uint32_t k ;
2970 int error = 0 ;
2971
2972 if (psf->codec_close)
2973 { error = psf->codec_close (psf) ;
2974 /* To prevent it being called in psf->container_close(). */
2975 psf->codec_close = NULL ;
2976 } ;
2977
2978 if (psf->container_close)
2979 error = psf->container_close (psf) ;
2980
2981 error = psf_fclose (psf) ;
2982 psf_close_rsrc (psf) ;
2983
2984 /* For an ISO C compliant implementation it is ok to free a NULL pointer. */
2985 free (psf->header.ptr) ;
2986 free (psf->container_data) ;
2987 free (psf->codec_data) ;
2988 free (psf->interleave) ;
2989 free (psf->dither) ;
2990 free (psf->peak_info) ;
2991 free (psf->broadcast_16k) ;
2992 free (psf->loop_info) ;
2993 free (psf->instrument) ;
2994 free (psf->cues) ;
2995 free (psf->channel_map) ;
2996 free (psf->format_desc) ;
2997 free (psf->strings.storage) ;
2998
2999 if (psf->wchunks.chunks)
3000 for (k = 0 ; k < psf->wchunks.used ; k++)
3001 free (psf->wchunks.chunks [k].data) ;
3002 free (psf->rchunks.chunks) ;
3003 free (psf->wchunks.chunks) ;
3004 free (psf->iterator) ;
3005 free (psf->cart_16k) ;
3006
3007 free (psf) ;
3008
3009 return error ;
3010 } /* psf_close */
3011
3012 SNDFILE *
psf_open_file(SF_PRIVATE * psf,SF_INFO * sfinfo)3013 psf_open_file (SF_PRIVATE *psf, SF_INFO *sfinfo)
3014 { int error, format ;
3015
3016 sf_errno = error = 0 ;
3017 sf_parselog [0] = 0 ;
3018
3019 if (psf->error)
3020 { error = psf->error ;
3021 goto error_exit ;
3022 } ;
3023
3024 if (psf->file.mode != SFM_READ && psf->file.mode != SFM_WRITE && psf->file.mode != SFM_RDWR)
3025 { error = SFE_BAD_OPEN_MODE ;
3026 goto error_exit ;
3027 } ;
3028
3029 if (sfinfo == NULL)
3030 { error = SFE_BAD_SF_INFO_PTR ;
3031 goto error_exit ;
3032 } ;
3033
3034 if (psf->file.mode == SFM_READ)
3035 { if ((SF_CONTAINER (sfinfo->format)) == SF_FORMAT_RAW)
3036 { if (sf_format_check (sfinfo) == 0)
3037 { error = SFE_RAW_BAD_FORMAT ;
3038 goto error_exit ;
3039 } ;
3040 }
3041 else
3042 memset (sfinfo, 0, sizeof (SF_INFO)) ;
3043 } ;
3044
3045 memcpy (&psf->sf, sfinfo, sizeof (SF_INFO)) ;
3046
3047 psf->Magick = SNDFILE_MAGICK ;
3048 psf->norm_float = SF_TRUE ;
3049 psf->norm_double = SF_TRUE ;
3050 psf->dataoffset = -1 ;
3051 psf->datalength = -1 ;
3052 psf->read_current = -1 ;
3053 psf->write_current = -1 ;
3054 psf->auto_header = SF_FALSE ;
3055 psf->rwf_endian = SF_ENDIAN_LITTLE ;
3056 psf->seek = psf_default_seek ;
3057 psf->float_int_mult = 0 ;
3058 psf->float_max = -1.0 ;
3059
3060 /* An attempt at a per SF_PRIVATE unique id. */
3061 psf->unique_id = psf_rand_int32 () ;
3062
3063 psf->sf.sections = 1 ;
3064
3065 psf->is_pipe = psf_is_pipe (psf) ;
3066
3067 if (psf->is_pipe)
3068 { psf->sf.seekable = SF_FALSE ;
3069 psf->filelength = SF_COUNT_MAX ;
3070 }
3071 else
3072 { psf->sf.seekable = SF_TRUE ;
3073
3074 /* File is open, so get the length. */
3075 psf->filelength = psf_get_filelen (psf) ;
3076 } ;
3077
3078 if (psf->fileoffset > 0)
3079 { switch (psf->file.mode)
3080 { case SFM_READ :
3081 if (psf->filelength < 44)
3082 { psf_log_printf (psf, "Short filelength: %D (fileoffset: %D)\n", psf->filelength, psf->fileoffset) ;
3083 error = SFE_BAD_OFFSET ;
3084 goto error_exit ;
3085 } ;
3086 break ;
3087
3088 case SFM_WRITE :
3089 psf->fileoffset = 0 ;
3090 psf_fseek (psf, 0, SEEK_END) ;
3091 psf->fileoffset = psf_ftell (psf) ;
3092 break ;
3093
3094 case SFM_RDWR :
3095 error = SFE_NO_EMBEDDED_RDWR ;
3096 goto error_exit ;
3097 } ;
3098
3099 psf_log_printf (psf, "Embedded file offset : %D\n", psf->fileoffset) ;
3100 } ;
3101
3102 if (psf->filelength == SF_COUNT_MAX)
3103 psf_log_printf (psf, "Length : unknown\n") ;
3104 else
3105 psf_log_printf (psf, "Length : %D\n", psf->filelength) ;
3106
3107 if (psf->file.mode == SFM_WRITE || (psf->file.mode == SFM_RDWR && psf->filelength == 0))
3108 { /* If the file is being opened for write or RDWR and the file is currently
3109 ** empty, then the SF_INFO struct must contain valid data.
3110 */
3111 if ((SF_CONTAINER (psf->sf.format)) == 0)
3112 { error = SFE_ZERO_MAJOR_FORMAT ;
3113 goto error_exit ;
3114 } ;
3115 if ((SF_CODEC (psf->sf.format)) == 0)
3116 { error = SFE_ZERO_MINOR_FORMAT ;
3117 goto error_exit ;
3118 } ;
3119
3120 if (sf_format_check (&psf->sf) == 0)
3121 { error = SFE_BAD_OPEN_FORMAT ;
3122 goto error_exit ;
3123 } ;
3124 }
3125 else if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_RAW)
3126 { /* If type RAW has not been specified then need to figure out file type. */
3127 psf->sf.format = guess_file_type (psf) ;
3128
3129 if (psf->sf.format == 0)
3130 psf->sf.format = format_from_extension (psf) ;
3131 } ;
3132
3133 /* Prevent unnecessary seeks */
3134 psf->last_op = psf->file.mode ;
3135
3136 /* Set bytewidth if known. */
3137 switch (SF_CODEC (psf->sf.format))
3138 { case SF_FORMAT_PCM_S8 :
3139 case SF_FORMAT_PCM_U8 :
3140 case SF_FORMAT_ULAW :
3141 case SF_FORMAT_ALAW :
3142 case SF_FORMAT_DPCM_8 :
3143 psf->bytewidth = 1 ;
3144 break ;
3145
3146 case SF_FORMAT_PCM_16 :
3147 case SF_FORMAT_DPCM_16 :
3148 psf->bytewidth = 2 ;
3149 break ;
3150
3151 case SF_FORMAT_PCM_24 :
3152 psf->bytewidth = 3 ;
3153 break ;
3154
3155 case SF_FORMAT_PCM_32 :
3156 case SF_FORMAT_FLOAT :
3157 psf->bytewidth = 4 ;
3158 break ;
3159
3160 case SF_FORMAT_DOUBLE :
3161 psf->bytewidth = 8 ;
3162 break ;
3163 } ;
3164
3165 /* Call the initialisation function for the relevant file type. */
3166 switch (SF_CONTAINER (psf->sf.format))
3167 { case SF_FORMAT_WAV :
3168 case SF_FORMAT_WAVEX :
3169 error = wav_open (psf) ;
3170 break ;
3171
3172 case SF_FORMAT_AIFF :
3173 error = aiff_open (psf) ;
3174 break ;
3175
3176 case SF_FORMAT_AU :
3177 error = au_open (psf) ;
3178 break ;
3179
3180 case SF_FORMAT_RAW :
3181 error = raw_open (psf) ;
3182 break ;
3183
3184 case SF_FORMAT_W64 :
3185 error = w64_open (psf) ;
3186 break ;
3187
3188 case SF_FORMAT_RF64 :
3189 error = rf64_open (psf) ;
3190 break ;
3191
3192 /* Lite remove start */
3193 case SF_FORMAT_PAF :
3194 error = paf_open (psf) ;
3195 break ;
3196
3197 case SF_FORMAT_SVX :
3198 error = svx_open (psf) ;
3199 break ;
3200
3201 case SF_FORMAT_NIST :
3202 error = nist_open (psf) ;
3203 break ;
3204
3205 case SF_FORMAT_IRCAM :
3206 error = ircam_open (psf) ;
3207 break ;
3208
3209 case SF_FORMAT_VOC :
3210 error = voc_open (psf) ;
3211 break ;
3212
3213 case SF_FORMAT_SDS :
3214 error = sds_open (psf) ;
3215 break ;
3216
3217 case SF_FORMAT_OGG :
3218 error = ogg_open (psf) ;
3219 break ;
3220
3221 case SF_FORMAT_TXW :
3222 error = txw_open (psf) ;
3223 break ;
3224
3225 case SF_FORMAT_WVE :
3226 error = wve_open (psf) ;
3227 break ;
3228
3229 case SF_FORMAT_DWD :
3230 error = dwd_open (psf) ;
3231 break ;
3232
3233 case SF_FORMAT_MAT4 :
3234 error = mat4_open (psf) ;
3235 break ;
3236
3237 case SF_FORMAT_MAT5 :
3238 error = mat5_open (psf) ;
3239 break ;
3240
3241 case SF_FORMAT_PVF :
3242 error = pvf_open (psf) ;
3243 break ;
3244
3245 case SF_FORMAT_XI :
3246 error = xi_open (psf) ;
3247 break ;
3248
3249 case SF_FORMAT_HTK :
3250 error = htk_open (psf) ;
3251 break ;
3252
3253 case SF_FORMAT_SD2 :
3254 error = sd2_open (psf) ;
3255 break ;
3256
3257 case SF_FORMAT_REX2 :
3258 error = rx2_open (psf) ;
3259 break ;
3260
3261 case SF_FORMAT_AVR :
3262 error = avr_open (psf) ;
3263 break ;
3264
3265 case SF_FORMAT_FLAC :
3266 error = flac_open (psf) ;
3267 break ;
3268
3269 case SF_FORMAT_CAF :
3270 error = caf_open (psf) ;
3271 break ;
3272
3273 case SF_FORMAT_MPC2K :
3274 error = mpc2k_open (psf) ;
3275 break ;
3276
3277 case SF_FORMAT_MPEG :
3278 error = mpeg_open (psf) ;
3279 break ;
3280
3281 /* Lite remove end */
3282
3283 default :
3284 error = SF_ERR_UNRECOGNISED_FORMAT ;
3285 } ;
3286
3287 if (error)
3288 goto error_exit ;
3289
3290 /* For now, check whether embedding is supported. */
3291 format = SF_CONTAINER (psf->sf.format) ;
3292 if (psf->fileoffset > 0)
3293 { switch (format)
3294 { case SF_FORMAT_WAV :
3295 case SF_FORMAT_WAVEX :
3296 case SF_FORMAT_AIFF :
3297 case SF_FORMAT_AU :
3298 /* Actual embedded files. */
3299 break ;
3300
3301 case SF_FORMAT_MPEG :
3302 case SF_FORMAT_FLAC :
3303 /* Flac with an ID3v2 header? */
3304 break ;
3305
3306 default :
3307 error = SFE_NO_EMBED_SUPPORT ;
3308 goto error_exit ;
3309 } ;
3310 } ;
3311
3312 if (psf->fileoffset > 0)
3313 psf_log_printf (psf, "Embedded file length : %D\n", psf->filelength) ;
3314
3315 if (psf->file.mode == SFM_RDWR && sf_format_check (&psf->sf) == 0)
3316 { error = SFE_BAD_MODE_RW ;
3317 goto error_exit ;
3318 } ;
3319
3320 if (validate_sfinfo (&psf->sf) == 0)
3321 { psf_log_SF_INFO (psf) ;
3322 save_header_info (psf) ;
3323 error = SFE_BAD_SF_INFO ;
3324 goto error_exit ;
3325 } ;
3326
3327 if (validate_psf (psf) == 0)
3328 { save_header_info (psf) ;
3329 error = SFE_INTERNAL ;
3330 goto error_exit ;
3331 } ;
3332
3333 psf->read_current = 0 ;
3334 psf->write_current = 0 ;
3335 if (psf->file.mode == SFM_RDWR)
3336 { psf->write_current = psf->sf.frames ;
3337 psf->have_written = psf->sf.frames > 0 ? SF_TRUE : SF_FALSE ;
3338 } ;
3339
3340 memcpy (sfinfo, &psf->sf, sizeof (SF_INFO)) ;
3341
3342 if (psf->file.mode == SFM_WRITE)
3343 { /* Zero out these fields. */
3344 sfinfo->frames = 0 ;
3345 sfinfo->sections = 0 ;
3346 sfinfo->seekable = 0 ;
3347 } ;
3348
3349 return (SNDFILE *) psf ;
3350
3351 error_exit :
3352 sf_errno = error ;
3353
3354 if (error == SFE_SYSTEM)
3355 snprintf (sf_syserr, sizeof (sf_syserr), "%s", psf->syserr) ;
3356 snprintf (sf_parselog, sizeof (sf_parselog), "%s", psf->parselog.buf) ;
3357
3358 switch (error)
3359 { case SF_ERR_SYSTEM :
3360 case SF_ERR_UNSUPPORTED_ENCODING :
3361 case SFE_UNIMPLEMENTED :
3362 break ;
3363
3364 case SFE_RAW_BAD_FORMAT :
3365 break ;
3366
3367 default :
3368 if (psf->file.mode == SFM_READ)
3369 { psf_log_printf (psf, "Parse error : %s\n", sf_error_number (error)) ;
3370 error = SF_ERR_MALFORMED_FILE ;
3371 } ;
3372 } ;
3373
3374 psf_close (psf) ;
3375 return NULL ;
3376 } /* psf_open_file */
3377
3378 /*==============================================================================
3379 ** Chunk getting and setting.
3380 ** This works for AIFF, CAF, RF64 and WAV.
3381 ** It doesn't work for W64 because W64 uses weird GUID style chunk markers.
3382 */
3383
3384 int
sf_set_chunk(SNDFILE * sndfile,const SF_CHUNK_INFO * chunk_info)3385 sf_set_chunk (SNDFILE * sndfile, const SF_CHUNK_INFO * chunk_info)
3386 { SF_PRIVATE *psf ;
3387
3388 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
3389
3390 if (chunk_info == NULL || chunk_info->data == NULL)
3391 return SFE_BAD_CHUNK_PTR ;
3392
3393 if (psf->set_chunk)
3394 return psf->set_chunk (psf, chunk_info) ;
3395
3396 return SFE_BAD_CHUNK_FORMAT ;
3397 } /* sf_set_chunk */
3398
3399 SF_CHUNK_ITERATOR *
sf_get_chunk_iterator(SNDFILE * sndfile,const SF_CHUNK_INFO * chunk_info)3400 sf_get_chunk_iterator (SNDFILE * sndfile, const SF_CHUNK_INFO * chunk_info)
3401 { SF_PRIVATE *psf ;
3402
3403 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
3404
3405 if (chunk_info)
3406 return psf_get_chunk_iterator (psf, chunk_info->id) ;
3407
3408 return psf_get_chunk_iterator (psf, NULL) ;
3409 } /* sf_get_chunk_iterator */
3410
3411 SF_CHUNK_ITERATOR *
sf_next_chunk_iterator(SF_CHUNK_ITERATOR * iterator)3412 sf_next_chunk_iterator (SF_CHUNK_ITERATOR * iterator)
3413 { SF_PRIVATE *psf ;
3414 SNDFILE *sndfile = iterator ? iterator->sndfile : NULL ;
3415
3416 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
3417
3418 if (psf->next_chunk_iterator)
3419 return psf->next_chunk_iterator (psf, iterator) ;
3420
3421 return NULL ;
3422 } /* sf_get_chunk_iterator_next */
3423
3424 int
sf_get_chunk_size(const SF_CHUNK_ITERATOR * iterator,SF_CHUNK_INFO * chunk_info)3425 sf_get_chunk_size (const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info)
3426 { SF_PRIVATE *psf ;
3427 SNDFILE *sndfile = iterator ? iterator->sndfile : NULL ;
3428
3429 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
3430
3431 if (chunk_info == NULL)
3432 return SFE_BAD_CHUNK_PTR ;
3433
3434 if (psf->get_chunk_size)
3435 return psf->get_chunk_size (psf, iterator, chunk_info) ;
3436
3437 return SFE_BAD_CHUNK_FORMAT ;
3438 } /* sf_get_chunk_size */
3439
3440 int
sf_get_chunk_data(const SF_CHUNK_ITERATOR * iterator,SF_CHUNK_INFO * chunk_info)3441 sf_get_chunk_data (const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info)
3442 { SF_PRIVATE *psf ;
3443 SNDFILE *sndfile = iterator ? iterator->sndfile : NULL ;
3444
3445 VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ;
3446
3447 if (chunk_info == NULL || chunk_info->data == NULL)
3448 return SFE_BAD_CHUNK_PTR ;
3449
3450 if (psf->get_chunk_data)
3451 return psf->get_chunk_data (psf, iterator, chunk_info) ;
3452
3453 return SFE_BAD_CHUNK_FORMAT ;
3454 } /* sf_get_chunk_data */
3455