code.delx.au - pulseaudio/blob - src/pulsecore/sndfile-util.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2009 Lennart Poettering
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2.1 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 /* Shared between pacat/parec/paplay and the server */
  27
  28 #include <pulse/xmalloc.h>
  29 #include <pulse/utf8.h>
  30
  31 #include <pulsecore/macro.h>
  32
  33 #include "sndfile-util.h"
  34
  35 int pa_sndfile_read_sample_spec(SNDFILE *sf, pa_sample_spec *ss) {
  36     SF_INFO sfi;
  37     int sf_errno;
  38
  39     pa_assert(sf);
  40     pa_assert(ss);
  41
  42     pa_zero(sfi);
  43     if ((sf_errno = sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)))) {
  44         pa_log_error("sndfile: %s", sf_error_number(sf_errno));
  45         return -1;
  46     }
  47
  48     switch (sfi.format & SF_FORMAT_SUBMASK) {
  49
  50         case SF_FORMAT_PCM_16:
  51         case SF_FORMAT_PCM_U8:
  52         case SF_FORMAT_PCM_S8:
  53             ss->format = PA_SAMPLE_S16NE;
  54             break;
  55
  56         case SF_FORMAT_PCM_24:
  57             ss->format = PA_SAMPLE_S24NE;
  58             break;
  59
  60         case SF_FORMAT_PCM_32:
  61             ss->format = PA_SAMPLE_S32NE;
  62             break;
  63
  64         case SF_FORMAT_ULAW:
  65             ss->format = PA_SAMPLE_ULAW;
  66             break;
  67
  68         case SF_FORMAT_ALAW:
  69             ss->format = PA_SAMPLE_ALAW;
  70             break;
  71
  72         case SF_FORMAT_FLOAT:
  73         case SF_FORMAT_DOUBLE:
  74         default:
  75             ss->format = PA_SAMPLE_FLOAT32NE;
  76             break;
  77     }
  78
  79     ss->rate = (uint32_t) sfi.samplerate;
  80     ss->channels = (uint8_t) sfi.channels;
  81
  82     if (!pa_sample_spec_valid(ss))
  83         return -1;
  84
  85     return 0;
  86 }
  87
  88 int pa_sndfile_write_sample_spec(SF_INFO *sfi, pa_sample_spec *ss) {
  89     pa_assert(sfi);
  90     pa_assert(ss);
  91
  92     sfi->samplerate = (int) ss->rate;
  93     sfi->channels = (int) ss->channels;
  94
  95     if (pa_sample_format_is_le(ss->format) > 0)
  96         sfi->format = SF_ENDIAN_LITTLE;
  97     else if (pa_sample_format_is_be(ss->format) > 0)
  98         sfi->format = SF_ENDIAN_BIG;
  99
 100     switch (ss->format) {
 101
 102         case PA_SAMPLE_U8:
 103             ss->format = PA_SAMPLE_S16NE;
 104             sfi->format = SF_FORMAT_PCM_U8;
 105             break;
 106
 107         case PA_SAMPLE_S16LE:
 108         case PA_SAMPLE_S16BE:
 109             ss->format = PA_SAMPLE_S16NE;
 110             sfi->format |= SF_FORMAT_PCM_16;
 111             break;
 112
 113         case PA_SAMPLE_S24LE:
 114         case PA_SAMPLE_S24BE:
 115             ss->format = PA_SAMPLE_S24NE;
 116             sfi->format |= SF_FORMAT_PCM_24;
 117             break;
 118
 119         case PA_SAMPLE_S24_32LE:
 120         case PA_SAMPLE_S24_32BE:
 121             ss->format = PA_SAMPLE_S24_32NE;
 122             sfi->format |= SF_FORMAT_PCM_32;
 123             break;
 124
 125         case PA_SAMPLE_S32LE:
 126         case PA_SAMPLE_S32BE:
 127             ss->format = PA_SAMPLE_S32NE;
 128             sfi->format |= SF_FORMAT_PCM_32;
 129             break;
 130
 131         case PA_SAMPLE_ULAW:
 132             sfi->format = SF_FORMAT_ULAW;
 133             break;
 134
 135         case PA_SAMPLE_ALAW:
 136             sfi->format = SF_FORMAT_ALAW;
 137             break;
 138
 139         case PA_SAMPLE_FLOAT32LE:
 140         case PA_SAMPLE_FLOAT32BE:
 141         default:
 142             ss->format = PA_SAMPLE_FLOAT32NE;
 143             sfi->format |= SF_FORMAT_FLOAT;
 144             break;
 145     }
 146
 147     if (!pa_sample_spec_valid(ss))
 148         return -1;
 149
 150     return 0;
 151 }
 152
 153 int pa_sndfile_read_channel_map(SNDFILE *sf, pa_channel_map *cm) {
 154
 155     static const pa_channel_position_t table[] = {
 156         [SF_CHANNEL_MAP_MONO] =                  PA_CHANNEL_POSITION_MONO,
 157         [SF_CHANNEL_MAP_LEFT] =                  PA_CHANNEL_POSITION_FRONT_LEFT, /* libsndfile distinguishes left and front-left, which we don't */
 158         [SF_CHANNEL_MAP_RIGHT] =                 PA_CHANNEL_POSITION_FRONT_RIGHT,
 159         [SF_CHANNEL_MAP_CENTER] =                PA_CHANNEL_POSITION_FRONT_CENTER,
 160         [SF_CHANNEL_MAP_FRONT_LEFT] =            PA_CHANNEL_POSITION_FRONT_LEFT,
 161         [SF_CHANNEL_MAP_FRONT_RIGHT] =           PA_CHANNEL_POSITION_FRONT_RIGHT,
 162         [SF_CHANNEL_MAP_FRONT_CENTER] =          PA_CHANNEL_POSITION_FRONT_CENTER,
 163         [SF_CHANNEL_MAP_REAR_CENTER] =           PA_CHANNEL_POSITION_REAR_CENTER,
 164         [SF_CHANNEL_MAP_REAR_LEFT] =             PA_CHANNEL_POSITION_REAR_LEFT,
 165         [SF_CHANNEL_MAP_REAR_RIGHT] =            PA_CHANNEL_POSITION_REAR_RIGHT,
 166         [SF_CHANNEL_MAP_LFE] =                   PA_CHANNEL_POSITION_LFE,
 167         [SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER] =  PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
 168         [SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
 169         [SF_CHANNEL_MAP_SIDE_LEFT] =             PA_CHANNEL_POSITION_SIDE_LEFT,
 170         [SF_CHANNEL_MAP_SIDE_RIGHT] =            PA_CHANNEL_POSITION_SIDE_RIGHT,
 171         [SF_CHANNEL_MAP_TOP_CENTER] =            PA_CHANNEL_POSITION_TOP_CENTER,
 172         [SF_CHANNEL_MAP_TOP_FRONT_LEFT] =        PA_CHANNEL_POSITION_TOP_FRONT_LEFT,
 173         [SF_CHANNEL_MAP_TOP_FRONT_RIGHT] =       PA_CHANNEL_POSITION_TOP_FRONT_RIGHT,
 174         [SF_CHANNEL_MAP_TOP_FRONT_CENTER] =      PA_CHANNEL_POSITION_TOP_FRONT_CENTER,
 175         [SF_CHANNEL_MAP_TOP_REAR_LEFT] =         PA_CHANNEL_POSITION_TOP_REAR_LEFT,
 176         [SF_CHANNEL_MAP_TOP_REAR_RIGHT] =        PA_CHANNEL_POSITION_TOP_REAR_RIGHT,
 177         [SF_CHANNEL_MAP_TOP_REAR_CENTER] =       PA_CHANNEL_POSITION_TOP_REAR_CENTER
 178     };
 179
 180     SF_INFO sfi;
 181     int sf_errno;
 182     int *channels;
 183     unsigned c;
 184
 185     pa_assert(sf);
 186     pa_assert(cm);
 187
 188     pa_zero(sfi);
 189     if ((sf_errno = sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)))) {
 190         pa_log_error("sndfile: %s", sf_error_number(sf_errno));
 191         return -1;
 192     }
 193
 194     channels = pa_xnew(int, sfi.channels);
 195     if (!sf_command(sf, SFC_GET_CHANNEL_MAP_INFO, channels, sizeof(channels[0]) * sfi.channels)) {
 196         pa_xfree(channels);
 197         return -1;
 198     }
 199
 200     cm->channels = (uint8_t) sfi.channels;
 201     for (c = 0; c < cm->channels; c++) {
 202         if (channels[c] <= SF_CHANNEL_MAP_INVALID ||
 203             (unsigned) channels[c] >= PA_ELEMENTSOF(table)) {
 204             pa_xfree(channels);
 205             return -1;
 206         }
 207
 208         cm->map[c] = table[channels[c]];
 209     }
 210
 211     pa_xfree(channels);
 212
 213     if (!pa_channel_map_valid(cm))
 214         return -1;
 215
 216     return 0;
 217 }
 218
 219 int pa_sndfile_write_channel_map(SNDFILE *sf, pa_channel_map *cm) {
 220     static const int table[PA_CHANNEL_POSITION_MAX] = {
 221         [PA_CHANNEL_POSITION_MONO] = SF_CHANNEL_MAP_MONO,
 222
 223         [PA_CHANNEL_POSITION_FRONT_LEFT] = SF_CHANNEL_MAP_FRONT_LEFT,
 224         [PA_CHANNEL_POSITION_FRONT_RIGHT] = SF_CHANNEL_MAP_FRONT_RIGHT,
 225         [PA_CHANNEL_POSITION_FRONT_CENTER] = SF_CHANNEL_MAP_FRONT_CENTER,
 226
 227         [PA_CHANNEL_POSITION_REAR_CENTER] = SF_CHANNEL_MAP_REAR_CENTER,
 228         [PA_CHANNEL_POSITION_REAR_LEFT] = SF_CHANNEL_MAP_REAR_LEFT,
 229         [PA_CHANNEL_POSITION_REAR_RIGHT] = SF_CHANNEL_MAP_REAR_RIGHT,
 230
 231         [PA_CHANNEL_POSITION_LFE] = SF_CHANNEL_MAP_LFE,
 232
 233         [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER,
 234         [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER,
 235
 236         [PA_CHANNEL_POSITION_SIDE_LEFT] = SF_CHANNEL_MAP_SIDE_LEFT,
 237         [PA_CHANNEL_POSITION_SIDE_RIGHT] = SF_CHANNEL_MAP_SIDE_RIGHT,
 238
 239         [PA_CHANNEL_POSITION_AUX0] = -1,
 240         [PA_CHANNEL_POSITION_AUX1] = -1,
 241         [PA_CHANNEL_POSITION_AUX2] = -1,
 242         [PA_CHANNEL_POSITION_AUX3] = -1,
 243         [PA_CHANNEL_POSITION_AUX4] = -1,
 244         [PA_CHANNEL_POSITION_AUX5] = -1,
 245         [PA_CHANNEL_POSITION_AUX6] = -1,
 246         [PA_CHANNEL_POSITION_AUX7] = -1,
 247         [PA_CHANNEL_POSITION_AUX8] = -1,
 248         [PA_CHANNEL_POSITION_AUX9] = -1,
 249         [PA_CHANNEL_POSITION_AUX10] = -1,
 250         [PA_CHANNEL_POSITION_AUX11] = -1,
 251         [PA_CHANNEL_POSITION_AUX12] = -1,
 252         [PA_CHANNEL_POSITION_AUX13] = -1,
 253         [PA_CHANNEL_POSITION_AUX14] = -1,
 254         [PA_CHANNEL_POSITION_AUX15] = -1,
 255         [PA_CHANNEL_POSITION_AUX16] = -1,
 256         [PA_CHANNEL_POSITION_AUX17] = -1,
 257         [PA_CHANNEL_POSITION_AUX18] = -1,
 258         [PA_CHANNEL_POSITION_AUX19] = -1,
 259         [PA_CHANNEL_POSITION_AUX20] = -1,
 260         [PA_CHANNEL_POSITION_AUX21] = -1,
 261         [PA_CHANNEL_POSITION_AUX22] = -1,
 262         [PA_CHANNEL_POSITION_AUX23] = -1,
 263         [PA_CHANNEL_POSITION_AUX24] = -1,
 264         [PA_CHANNEL_POSITION_AUX25] = -1,
 265         [PA_CHANNEL_POSITION_AUX26] = -1,
 266         [PA_CHANNEL_POSITION_AUX27] = -1,
 267         [PA_CHANNEL_POSITION_AUX28] = -1,
 268         [PA_CHANNEL_POSITION_AUX29] = -1,
 269         [PA_CHANNEL_POSITION_AUX30] = -1,
 270         [PA_CHANNEL_POSITION_AUX31] = -1,
 271
 272         [PA_CHANNEL_POSITION_TOP_CENTER] = SF_CHANNEL_MAP_TOP_CENTER,
 273
 274         [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SF_CHANNEL_MAP_TOP_FRONT_LEFT,
 275         [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SF_CHANNEL_MAP_TOP_FRONT_RIGHT,
 276         [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SF_CHANNEL_MAP_TOP_FRONT_CENTER ,
 277
 278         [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SF_CHANNEL_MAP_TOP_REAR_LEFT,
 279         [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SF_CHANNEL_MAP_TOP_REAR_RIGHT,
 280         [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SF_CHANNEL_MAP_TOP_REAR_CENTER,
 281     };
 282
 283     int *channels;
 284     unsigned c;
 285
 286     pa_assert(sf);
 287     pa_assert(cm);
 288
 289     /* Suppress channel mapping for the obvious cases */
 290     if (cm->channels == 1 && cm->map[0] == PA_CHANNEL_POSITION_MONO)
 291         return 0;
 292
 293     if (cm->channels == 2 &&
 294         cm->map[0] == PA_CHANNEL_POSITION_FRONT_LEFT &&
 295         cm->map[1] == PA_CHANNEL_POSITION_FRONT_RIGHT)
 296         return 0;
 297
 298     channels = pa_xnew(int, cm->channels);
 299     for (c = 0; c < cm->channels; c++) {
 300
 301         if (cm->map[c] < 0 ||
 302             cm->map[c] >= PA_CHANNEL_POSITION_MAX ||
 303             table[cm->map[c]] < 0) {
 304             pa_xfree(channels);
 305             return -1;
 306         }
 307
 308         channels[c] = table[cm->map[c]];
 309     }
 310
 311     if (!sf_command(sf, SFC_SET_CHANNEL_MAP_INFO, channels, sizeof(channels[0]) * cm->channels)) {
 312         pa_xfree(channels);
 313         return -1;
 314     }
 315
 316     pa_xfree(channels);
 317     return 0;
 318 }
 319
 320 void pa_sndfile_init_proplist(SNDFILE *sf, pa_proplist *p) {
 321
 322     static const char* table[] = {
 323         [SF_STR_TITLE] = PA_PROP_MEDIA_TITLE,
 324         [SF_STR_COPYRIGHT] = PA_PROP_MEDIA_COPYRIGHT,
 325         [SF_STR_SOFTWARE] = PA_PROP_MEDIA_SOFTWARE,
 326         [SF_STR_ARTIST] = PA_PROP_MEDIA_ARTIST,
 327         [SF_STR_COMMENT] = "media.comment",
 328         [SF_STR_DATE] = "media.date"
 329     };
 330
 331     SF_INFO sfi;
 332     SF_FORMAT_INFO fi;
 333     int sf_errno;
 334     unsigned c;
 335
 336     pa_assert(sf);
 337     pa_assert(p);
 338
 339     for (c = 0; c < PA_ELEMENTSOF(table); c++) {
 340         const char *s;
 341         char *t;
 342
 343         if (!table[c])
 344             continue;
 345
 346         if (!(s = sf_get_string(sf, c)))
 347             continue;
 348
 349         t = pa_utf8_filter(s);
 350         pa_proplist_sets(p, table[c], t);
 351         pa_xfree(t);
 352     }
 353
 354     pa_zero(sfi);
 355     if ((sf_errno = sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)))) {
 356         pa_log_error("sndfile: %s", sf_error_number(sf_errno));
 357         return;
 358     }
 359
 360     pa_zero(fi);
 361     fi.format = sfi.format;
 362     if (sf_command(sf, SFC_GET_FORMAT_INFO, &fi, sizeof(fi)) == 0 && fi.name) {
 363         char *t;
 364
 365         t = pa_utf8_filter(fi.name);
 366         pa_proplist_sets(p, "media.format", t);
 367         pa_xfree(t);
 368     }
 369 }
 370
 371 pa_sndfile_readf_t pa_sndfile_readf_function(const pa_sample_spec *ss) {
 372     pa_assert(ss);
 373
 374     switch (ss->format) {
 375         case PA_SAMPLE_S16NE:
 376             return (pa_sndfile_readf_t) sf_readf_short;
 377
 378         case PA_SAMPLE_S32NE:
 379         case PA_SAMPLE_S24_32NE:
 380             return (pa_sndfile_readf_t) sf_readf_int;
 381
 382         case PA_SAMPLE_FLOAT32NE:
 383             return (pa_sndfile_readf_t) sf_readf_float;
 384
 385         case PA_SAMPLE_ULAW:
 386         case PA_SAMPLE_ALAW:
 387         case PA_SAMPLE_S24NE:
 388             return NULL;
 389
 390         default:
 391             pa_assert_not_reached();
 392     }
 393 }
 394
 395 pa_sndfile_writef_t pa_sndfile_writef_function(const pa_sample_spec *ss) {
 396     pa_assert(ss);
 397
 398     switch (ss->format) {
 399         case PA_SAMPLE_S16NE:
 400             return (pa_sndfile_writef_t) sf_writef_short;
 401
 402         case PA_SAMPLE_S32NE:
 403         case PA_SAMPLE_S24_32NE:
 404             return (pa_sndfile_writef_t) sf_writef_int;
 405
 406         case PA_SAMPLE_FLOAT32NE:
 407             return (pa_sndfile_writef_t) sf_writef_float;
 408
 409         case PA_SAMPLE_ULAW:
 410         case PA_SAMPLE_ALAW:
 411         case PA_SAMPLE_S24NE:
 412             return NULL;
 413
 414         default:
 415             pa_assert_not_reached();
 416     }
 417 }
 418
 419 int pa_sndfile_format_from_string(const char *name) {
 420     int i, count = 0;
 421
 422     if (!name[0])
 423         return -1;
 424
 425     pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(int)) == 0);
 426
 427     for (i = 0; i < count; i++) {
 428         SF_FORMAT_INFO fi;
 429         pa_zero(fi);
 430         fi.format = i;
 431
 432         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 433
 434         /* First try to match via full type string */
 435         if (strcasecmp(name, fi.name) == 0)
 436             return fi.format;
 437
 438         /* Then, try to match via the full extension */
 439         if (strcasecmp(name, fi.extension) == 0)
 440             return fi.format;
 441
 442         /* Then, try to match via the start of the type string */
 443         if (strncasecmp(name, fi.name, strlen(name)) == 0)
 444             return fi.format;
 445     }
 446
 447     return -1;
 448 }
 449
 450 void pa_sndfile_dump_formats(void) {
 451     int i, count = 0;
 452
 453     pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(int)) == 0);
 454
 455     for (i = 0; i < count; i++) {
 456         SF_FORMAT_INFO fi;
 457         pa_zero(fi);
 458         fi.format = i;
 459
 460         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 461         printf("%s\t%s\n", fi.extension, fi.name);
 462     }
 463 }