libsndfile source files.
[Faustine.git] / interpretor / libsndfile-1.0.25 / src / command.c
1 /*
2 ** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
3 **
4 ** This program is free software; you can redistribute it and/or modify
5 ** it under the terms of the GNU Lesser General Public License as published by
6 ** the Free Software Foundation; either version 2.1 of the License, or
7 ** (at your option) any later version.
8 **
9 ** This program is distributed in the hope that it will be useful,
10 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 ** GNU Lesser General Public License for more details.
13 **
14 ** You should have received a copy of the GNU Lesser General Public License
15 ** along with this program; if not, write to the Free Software
16 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19 #include "sfconfig.h"
20
21 #include <stdio.h>
22 #include <string.h>
23 #include <math.h>
24
25 #include "sndfile.h"
26 #include "common.h"
27
28 static SF_FORMAT_INFO const simple_formats [] =
29 {
30 { SF_FORMAT_AIFF | SF_FORMAT_PCM_16,
31 "AIFF (Apple/SGI 16 bit PCM)", "aiff"
32 },
33
34 { SF_FORMAT_AIFF | SF_FORMAT_FLOAT,
35 "AIFF (Apple/SGI 32 bit float)", "aifc"
36 },
37
38 { SF_FORMAT_AIFF | SF_FORMAT_PCM_S8,
39 "AIFF (Apple/SGI 8 bit PCM)", "aiff"
40 },
41
42 { SF_FORMAT_AU | SF_FORMAT_PCM_16,
43 "AU (Sun/Next 16 bit PCM)", "au"
44 },
45
46 { SF_FORMAT_AU | SF_FORMAT_ULAW,
47 "AU (Sun/Next 8-bit u-law)", "au"
48 },
49
50 { SF_FORMAT_CAF | SF_FORMAT_PCM_16,
51 "CAF (Apple 16 bit PCM)", "caf"
52 },
53
54 #if HAVE_EXTERNAL_LIBS
55 { SF_FORMAT_FLAC | SF_FORMAT_PCM_16,
56 "FLAC 16 bit", "flac"
57 },
58 #endif
59
60 { SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM,
61 "OKI Dialogic VOX ADPCM", "vox"
62 },
63
64 #if HAVE_EXTERNAL_LIBS
65 { SF_FORMAT_OGG | SF_FORMAT_VORBIS,
66 "Ogg Vorbis (Xiph Foundation)", "oga"
67 },
68 #endif
69
70 { SF_FORMAT_WAV | SF_FORMAT_PCM_16,
71 "WAV (Microsoft 16 bit PCM)", "wav"
72 },
73
74 { SF_FORMAT_WAV | SF_FORMAT_FLOAT,
75 "WAV (Microsoft 32 bit float)", "wav"
76 },
77
78 { SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM,
79 "WAV (Microsoft 4 bit IMA ADPCM)", "wav"
80 },
81
82 { SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM,
83 "WAV (Microsoft 4 bit MS ADPCM)", "wav"
84 },
85
86 { SF_FORMAT_WAV | SF_FORMAT_PCM_U8,
87 "WAV (Microsoft 8 bit PCM)", "wav"
88 },
89
90 } ; /* simple_formats */
91
92 int
93 psf_get_format_simple_count (void)
94 { return (sizeof (simple_formats) / sizeof (SF_FORMAT_INFO)) ;
95 } /* psf_get_format_simple_count */
96
97 int
98 psf_get_format_simple (SF_FORMAT_INFO *data)
99 { int indx ;
100
101 if (data->format < 0 || data->format >= (SIGNED_SIZEOF (simple_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)))
102 return SFE_BAD_COMMAND_PARAM ;
103
104 indx = data->format ;
105 memcpy (data, &(simple_formats [indx]), SIGNED_SIZEOF (SF_FORMAT_INFO)) ;
106
107 return 0 ;
108 } /* psf_get_format_simple */
109
110 /*============================================================================
111 ** Major format info.
112 */
113
114 static SF_FORMAT_INFO const major_formats [] =
115 {
116 { SF_FORMAT_AIFF, "AIFF (Apple/SGI)", "aiff" },
117 { SF_FORMAT_AU, "AU (Sun/NeXT)", "au" },
118 { SF_FORMAT_AVR, "AVR (Audio Visual Research)", "avr" },
119 { SF_FORMAT_CAF, "CAF (Apple Core Audio File)", "caf" },
120 #if HAVE_EXTERNAL_LIBS
121 { SF_FORMAT_FLAC, "FLAC (FLAC Lossless Audio Codec)", "flac" },
122 #endif
123 { SF_FORMAT_HTK, "HTK (HMM Tool Kit)", "htk" },
124 { SF_FORMAT_SVX, "IFF (Amiga IFF/SVX8/SV16)", "iff" },
125 { SF_FORMAT_MAT4, "MAT4 (GNU Octave 2.0 / Matlab 4.2)", "mat" },
126 { SF_FORMAT_MAT5, "MAT5 (GNU Octave 2.1 / Matlab 5.0)", "mat" },
127 { SF_FORMAT_MPC2K, "MPC (Akai MPC 2k)", "mpc" },
128 #if HAVE_EXTERNAL_LIBS
129 { SF_FORMAT_OGG, "OGG (OGG Container format)", "oga" },
130 #endif
131 { SF_FORMAT_PAF, "PAF (Ensoniq PARIS)", "paf" },
132 { SF_FORMAT_PVF, "PVF (Portable Voice Format)", "pvf" },
133 { SF_FORMAT_RAW, "RAW (header-less)", "raw" },
134 { SF_FORMAT_RF64, "RF64 (RIFF 64)", "rf64" },
135 { SF_FORMAT_SD2, "SD2 (Sound Designer II)", "sd2" },
136 { SF_FORMAT_SDS, "SDS (Midi Sample Dump Standard)", "sds" },
137 { SF_FORMAT_IRCAM, "SF (Berkeley/IRCAM/CARL)", "sf" },
138 { SF_FORMAT_VOC, "VOC (Creative Labs)", "voc" },
139 { SF_FORMAT_W64, "W64 (SoundFoundry WAVE 64)", "w64" },
140 { SF_FORMAT_WAV, "WAV (Microsoft)", "wav" },
141 { SF_FORMAT_NIST, "WAV (NIST Sphere)", "wav" },
142 { SF_FORMAT_WAVEX, "WAVEX (Microsoft)", "wav" },
143 { SF_FORMAT_WVE, "WVE (Psion Series 3)", "wve" },
144 { SF_FORMAT_XI, "XI (FastTracker 2)", "xi" },
145
146 } ; /* major_formats */
147
148 int
149 psf_get_format_major_count (void)
150 { return (sizeof (major_formats) / sizeof (SF_FORMAT_INFO)) ;
151 } /* psf_get_format_major_count */
152
153 int
154 psf_get_format_major (SF_FORMAT_INFO *data)
155 { int indx ;
156
157 if (data->format < 0 || data->format >= (SIGNED_SIZEOF (major_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)))
158 return SFE_BAD_COMMAND_PARAM ;
159
160 indx = data->format ;
161 memcpy (data, &(major_formats [indx]), SIGNED_SIZEOF (SF_FORMAT_INFO)) ;
162
163 return 0 ;
164 } /* psf_get_format_major */
165
166 /*============================================================================
167 ** Subtype format info.
168 */
169
170 static SF_FORMAT_INFO subtype_formats [] =
171 {
172 { SF_FORMAT_PCM_S8, "Signed 8 bit PCM", NULL },
173 { SF_FORMAT_PCM_16, "Signed 16 bit PCM", NULL },
174 { SF_FORMAT_PCM_24, "Signed 24 bit PCM", NULL },
175 { SF_FORMAT_PCM_32, "Signed 32 bit PCM", NULL },
176
177 { SF_FORMAT_PCM_U8, "Unsigned 8 bit PCM", NULL },
178
179 { SF_FORMAT_FLOAT, "32 bit float", NULL },
180 { SF_FORMAT_DOUBLE, "64 bit float", NULL },
181
182 { SF_FORMAT_ULAW, "U-Law", NULL },
183 { SF_FORMAT_ALAW, "A-Law", NULL },
184 { SF_FORMAT_IMA_ADPCM, "IMA ADPCM", NULL },
185 { SF_FORMAT_MS_ADPCM, "Microsoft ADPCM", NULL },
186
187 { SF_FORMAT_GSM610, "GSM 6.10", NULL },
188
189 { SF_FORMAT_G721_32, "32kbs G721 ADPCM", NULL },
190 { SF_FORMAT_G723_24, "24kbs G723 ADPCM", NULL },
191
192 { SF_FORMAT_DWVW_12, "12 bit DWVW", NULL },
193 { SF_FORMAT_DWVW_16, "16 bit DWVW", NULL },
194 { SF_FORMAT_DWVW_24, "24 bit DWVW", NULL },
195 { SF_FORMAT_VOX_ADPCM, "VOX ADPCM", "vox" },
196
197 { SF_FORMAT_DPCM_16, "16 bit DPCM", NULL },
198 { SF_FORMAT_DPCM_8, "8 bit DPCM", NULL },
199
200 #if HAVE_EXTERNAL_LIBS
201 { SF_FORMAT_VORBIS, "Vorbis", NULL },
202 #endif
203 } ; /* subtype_formats */
204
205 int
206 psf_get_format_subtype_count (void)
207 { return (sizeof (subtype_formats) / sizeof (SF_FORMAT_INFO)) ;
208 } /* psf_get_format_subtype_count */
209
210 int
211 psf_get_format_subtype (SF_FORMAT_INFO *data)
212 { int indx ;
213
214 if (data->format < 0 || data->format >= (SIGNED_SIZEOF (subtype_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)))
215 return SFE_BAD_COMMAND_PARAM ;
216
217 indx = data->format ;
218 memcpy (data, &(subtype_formats [indx]), sizeof (SF_FORMAT_INFO)) ;
219
220 return 0 ;
221 } /* psf_get_format_subtype */
222
223 /*==============================================================================
224 */
225
226 int
227 psf_get_format_info (SF_FORMAT_INFO *data)
228 { int k, format ;
229
230 if (SF_CONTAINER (data->format))
231 { format = SF_CONTAINER (data->format) ;
232
233 for (k = 0 ; k < (SIGNED_SIZEOF (major_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)) ; k++)
234 { if (format == major_formats [k].format)
235 { memcpy (data, &(major_formats [k]), sizeof (SF_FORMAT_INFO)) ;
236 return 0 ;
237 } ;
238 } ;
239 }
240 else if (SF_CODEC (data->format))
241 { format = SF_CODEC (data->format) ;
242
243 for (k = 0 ; k < (SIGNED_SIZEOF (subtype_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)) ; k++)
244 { if (format == subtype_formats [k].format)
245 { memcpy (data, &(subtype_formats [k]), sizeof (SF_FORMAT_INFO)) ;
246 return 0 ;
247 } ;
248 } ;
249 } ;
250
251 memset (data, 0, sizeof (SF_FORMAT_INFO)) ;
252
253 return SFE_BAD_COMMAND_PARAM ;
254 } /* psf_get_format_info */
255
256 /*==============================================================================
257 */
258
259 double
260 psf_calc_signal_max (SF_PRIVATE *psf, int normalize)
261 { sf_count_t position ;
262 double max_val, temp, *data ;
263 int k, len, readcount, save_state ;
264
265 /* If the file is not seekable, there is nothing we can do. */
266 if (! psf->sf.seekable)
267 { psf->error = SFE_NOT_SEEKABLE ;
268 return 0.0 ;
269 } ;
270
271 if (! psf->read_double)
272 { psf->error = SFE_UNIMPLEMENTED ;
273 return 0.0 ;
274 } ;
275
276 save_state = sf_command ((SNDFILE*) psf, SFC_GET_NORM_DOUBLE, NULL, 0) ;
277 sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, normalize) ;
278
279 /* Brute force. Read the whole file and find the biggest sample. */
280 /* Get current position in file */
281 position = sf_seek ((SNDFILE*) psf, 0, SEEK_CUR) ;
282 /* Go to start of file. */
283 sf_seek ((SNDFILE*) psf, 0, SEEK_SET) ;
284
285 data = psf->u.dbuf ;
286 len = ARRAY_LEN (psf->u.dbuf) ;
287
288 for (readcount = 1, max_val = 0.0 ; readcount > 0 ; /* nothing */)
289 { readcount = sf_read_double ((SNDFILE*) psf, data, len) ;
290 for (k = 0 ; k < readcount ; k++)
291 { temp = fabs (data [k]) ;
292 max_val = temp > max_val ? temp : max_val ;
293 } ;
294 } ;
295
296 /* Return to SNDFILE to original state. */
297 sf_seek ((SNDFILE*) psf, position, SEEK_SET) ;
298 sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, save_state) ;
299
300 return max_val ;
301 } /* psf_calc_signal_max */
302
303 int
304 psf_calc_max_all_channels (SF_PRIVATE *psf, double *peaks, int normalize)
305 { sf_count_t position ;
306 double temp, *data ;
307 int k, len, readcount, save_state ;
308 int chan ;
309
310 /* If the file is not seekable, there is nothing we can do. */
311 if (! psf->sf.seekable)
312 return (psf->error = SFE_NOT_SEEKABLE) ;
313
314 if (! psf->read_double)
315 return (psf->error = SFE_UNIMPLEMENTED) ;
316
317 save_state = sf_command ((SNDFILE*) psf, SFC_GET_NORM_DOUBLE, NULL, 0) ;
318 sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, normalize) ;
319
320 memset (peaks, 0, sizeof (double) * psf->sf.channels) ;
321
322 /* Brute force. Read the whole file and find the biggest sample for each channel. */
323 position = sf_seek ((SNDFILE*) psf, 0, SEEK_CUR) ; /* Get current position in file */
324 sf_seek ((SNDFILE*) psf, 0, SEEK_SET) ; /* Go to start of file. */
325
326 len = ARRAY_LEN (psf->u.dbuf) ;
327
328 data = psf->u.dbuf ;
329
330 chan = 0 ;
331 readcount = len ;
332 while (readcount > 0)
333 { readcount = sf_read_double ((SNDFILE*) psf, data, len) ;
334 for (k = 0 ; k < readcount ; k++)
335 { temp = fabs (data [k]) ;
336 peaks [chan] = temp > peaks [chan] ? temp : peaks [chan] ;
337 chan = (chan + 1) % psf->sf.channels ;
338 } ;
339 } ;
340
341 sf_seek ((SNDFILE*) psf, position, SEEK_SET) ; /* Return to original position. */
342
343 sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, save_state) ;
344
345 return 0 ;
346 } /* psf_calc_max_all_channels */
347
348 int
349 psf_get_signal_max (SF_PRIVATE *psf, double *peak)
350 { int k ;
351
352 if (psf->peak_info == NULL)
353 return SF_FALSE ;
354
355 peak [0] = psf->peak_info->peaks [0].value ;
356
357 for (k = 1 ; k < psf->sf.channels ; k++)
358 peak [0] = SF_MAX (peak [0], psf->peak_info->peaks [k].value) ;
359
360 return SF_TRUE ;
361 } /* psf_get_signal_max */
362
363 int
364 psf_get_max_all_channels (SF_PRIVATE *psf, double *peaks)
365 { int k ;
366
367 if (psf->peak_info == NULL)
368 return SF_FALSE ;
369
370 for (k = 0 ; k < psf->sf.channels ; k++)
371 peaks [k] = psf->peak_info->peaks [k].value ;
372
373 return SF_TRUE ;
374 } /* psf_get_max_all_channels */
375
376