Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 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 | |