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
  38     pa_assert(sf);
  39     pa_assert(ss);
  40
  41     pa_zero(sfi);
  42     pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
  43
  44     switch (sfi.format & SF_FORMAT_SUBMASK) {
  45
  46         case SF_FORMAT_PCM_16:
  47         case SF_FORMAT_PCM_U8:
  48         case SF_FORMAT_PCM_S8:
  49             ss->format = PA_SAMPLE_S16NE;
  50             break;
  51
  52         case SF_FORMAT_PCM_24:
  53             ss->format = PA_SAMPLE_S24NE;
  54             break;
  55
  56         case SF_FORMAT_PCM_32:
  57             ss->format = PA_SAMPLE_S32NE;
  58             break;
  59
  60         case SF_FORMAT_ULAW:
  61             ss->format = PA_SAMPLE_ULAW;
  62             break;
  63
  64         case SF_FORMAT_ALAW:
  65             ss->format = PA_SAMPLE_ALAW;
  66             break;
  67
  68         case SF_FORMAT_FLOAT:
  69         case SF_FORMAT_DOUBLE:
  70         default:
  71             ss->format = PA_SAMPLE_FLOAT32NE;
  72             break;
  73     }
  74
  75     ss->rate = (uint32_t) sfi.samplerate;
  76     ss->channels = (uint8_t) sfi.channels;
  77
  78     if (!pa_sample_spec_valid(ss))
  79         return -1;
  80
  81     return 0;
  82 }
  83
  84 int pa_sndfile_write_sample_spec(SF_INFO *sfi, pa_sample_spec *ss) {
  85     pa_assert(sfi);
  86     pa_assert(ss);
  87
  88     sfi->samplerate = (int) ss->rate;
  89     sfi->channels = (int) ss->channels;
  90
  91     if (pa_sample_format_is_le(ss->format) > 0)
  92         sfi->format = SF_ENDIAN_LITTLE;
  93     else if (pa_sample_format_is_be(ss->format) > 0)
  94         sfi->format = SF_ENDIAN_BIG;
  95
  96     switch (ss->format) {
  97
  98         case PA_SAMPLE_U8:
  99             ss->format = PA_SAMPLE_S16NE;
 100             sfi->format = SF_FORMAT_PCM_U8;
 101             break;
 102
 103         case PA_SAMPLE_S16LE:
 104         case PA_SAMPLE_S16BE:
 105             ss->format = PA_SAMPLE_S16NE;
 106             sfi->format |= SF_FORMAT_PCM_16;
 107             break;
 108
 109         case PA_SAMPLE_S24LE:
 110         case PA_SAMPLE_S24BE:
 111             ss->format = PA_SAMPLE_S24NE;
 112             sfi->format |= SF_FORMAT_PCM_24;
 113             break;
 114
 115         case PA_SAMPLE_S24_32LE:
 116         case PA_SAMPLE_S24_32BE:
 117             ss->format = PA_SAMPLE_S24_32NE;
 118             sfi->format |= SF_FORMAT_PCM_32;
 119             break;
 120
 121         case PA_SAMPLE_S32LE:
 122         case PA_SAMPLE_S32BE:
 123             ss->format = PA_SAMPLE_S32NE;
 124             sfi->format |= SF_FORMAT_PCM_32;
 125             break;
 126
 127         case PA_SAMPLE_ULAW:
 128             sfi->format = SF_FORMAT_ULAW;
 129             break;
 130
 131         case PA_SAMPLE_ALAW:
 132             sfi->format = SF_FORMAT_ALAW;
 133             break;
 134
 135         case PA_SAMPLE_FLOAT32LE:
 136         case PA_SAMPLE_FLOAT32BE:
 137         default:
 138             ss->format = PA_SAMPLE_FLOAT32NE;
 139             sfi->format |= SF_FORMAT_FLOAT;
 140             break;
 141     }
 142
 143
 144     if (!pa_sample_spec_valid(ss))
 145         return -1;
 146
 147     return 0;
 148 }
 149
 150 int pa_sndfile_read_channel_map(SNDFILE *sf, pa_channel_map *cm) {
 151
 152     static const pa_channel_position_t table[] = {
 153         [SF_CHANNEL_MAP_MONO] =                  PA_CHANNEL_POSITION_MONO,
 154         [SF_CHANNEL_MAP_LEFT] =                  PA_CHANNEL_POSITION_FRONT_LEFT, /* libsndfile distuingishes left und front-left, which we don't */
 155         [SF_CHANNEL_MAP_RIGHT] =                 PA_CHANNEL_POSITION_FRONT_RIGHT,
 156         [SF_CHANNEL_MAP_CENTER] =                PA_CHANNEL_POSITION_FRONT_CENTER,
 157         [SF_CHANNEL_MAP_FRONT_LEFT] =            PA_CHANNEL_POSITION_FRONT_LEFT,
 158         [SF_CHANNEL_MAP_FRONT_RIGHT] =           PA_CHANNEL_POSITION_FRONT_RIGHT,
 159         [SF_CHANNEL_MAP_FRONT_CENTER] =          PA_CHANNEL_POSITION_FRONT_CENTER,
 160         [SF_CHANNEL_MAP_REAR_CENTER] =           PA_CHANNEL_POSITION_REAR_CENTER,
 161         [SF_CHANNEL_MAP_REAR_LEFT] =             PA_CHANNEL_POSITION_REAR_LEFT,
 162         [SF_CHANNEL_MAP_REAR_RIGHT] =            PA_CHANNEL_POSITION_REAR_RIGHT,
 163         [SF_CHANNEL_MAP_LFE] =                   PA_CHANNEL_POSITION_LFE,
 164         [SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER] =  PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
 165         [SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
 166         [SF_CHANNEL_MAP_SIDE_LEFT] =             PA_CHANNEL_POSITION_SIDE_LEFT,
 167         [SF_CHANNEL_MAP_SIDE_RIGHT] =            PA_CHANNEL_POSITION_SIDE_RIGHT,
 168         [SF_CHANNEL_MAP_TOP_CENTER] =            PA_CHANNEL_POSITION_TOP_CENTER,
 169         [SF_CHANNEL_MAP_TOP_FRONT_LEFT] =        PA_CHANNEL_POSITION_TOP_FRONT_LEFT,
 170         [SF_CHANNEL_MAP_TOP_FRONT_RIGHT] =       PA_CHANNEL_POSITION_TOP_FRONT_RIGHT,
 171         [SF_CHANNEL_MAP_TOP_FRONT_CENTER] =      PA_CHANNEL_POSITION_TOP_FRONT_CENTER,
 172         [SF_CHANNEL_MAP_TOP_REAR_LEFT] =         PA_CHANNEL_POSITION_TOP_REAR_LEFT,
 173         [SF_CHANNEL_MAP_TOP_REAR_RIGHT] =        PA_CHANNEL_POSITION_TOP_REAR_RIGHT,
 174         [SF_CHANNEL_MAP_TOP_REAR_CENTER] =       PA_CHANNEL_POSITION_TOP_REAR_CENTER
 175     };
 176
 177     SF_INFO sfi;
 178     int *channels;
 179     unsigned c;
 180
 181     pa_assert(sf);
 182     pa_assert(cm);
 183
 184     pa_zero(sfi);
 185     pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
 186
 187     channels = pa_xnew(int, sfi.channels);
 188     if (!sf_command(sf, SFC_GET_CHANNEL_MAP_INFO,
 189                     channels, sizeof(channels[0]) * sfi.channels)) {
 190
 191         pa_xfree(channels);
 192         return -1;
 193     }
 194
 195     cm->channels = (uint8_t) sfi.channels;
 196     for (c = 0; c < cm->channels; c++) {
 197         if (channels[c] <= SF_CHANNEL_MAP_INVALID ||
 198             (unsigned) channels[c] >= PA_ELEMENTSOF(table)) {
 199             pa_xfree(channels);
 200             return -1;
 201         }
 202
 203         cm->map[c] = table[channels[c]];
 204     }
 205
 206     pa_xfree(channels);
 207
 208     if (!pa_channel_map_valid(cm))
 209         return -1;
 210
 211     return 0;
 212 }
 213
 214 int pa_sndfile_write_channel_map(SNDFILE *sf, pa_channel_map *cm) {
 215     static const int table[PA_CHANNEL_POSITION_MAX] = {
 216         [PA_CHANNEL_POSITION_MONO] = SF_CHANNEL_MAP_MONO,
 217
 218         [PA_CHANNEL_POSITION_FRONT_LEFT] = SF_CHANNEL_MAP_FRONT_LEFT,
 219         [PA_CHANNEL_POSITION_FRONT_RIGHT] = SF_CHANNEL_MAP_FRONT_RIGHT,
 220         [PA_CHANNEL_POSITION_FRONT_CENTER] = SF_CHANNEL_MAP_FRONT_CENTER,
 221
 222         [PA_CHANNEL_POSITION_REAR_CENTER] = SF_CHANNEL_MAP_REAR_CENTER,
 223         [PA_CHANNEL_POSITION_REAR_LEFT] = SF_CHANNEL_MAP_REAR_LEFT,
 224         [PA_CHANNEL_POSITION_REAR_RIGHT] = SF_CHANNEL_MAP_REAR_RIGHT,
 225
 226         [PA_CHANNEL_POSITION_LFE] = SF_CHANNEL_MAP_LFE,
 227
 228         [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER,
 229         [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER,
 230
 231         [PA_CHANNEL_POSITION_SIDE_LEFT] = SF_CHANNEL_MAP_SIDE_LEFT,
 232         [PA_CHANNEL_POSITION_SIDE_RIGHT] = SF_CHANNEL_MAP_SIDE_RIGHT,
 233
 234         [PA_CHANNEL_POSITION_AUX0] = -1,
 235         [PA_CHANNEL_POSITION_AUX1] = -1,
 236         [PA_CHANNEL_POSITION_AUX2] = -1,
 237         [PA_CHANNEL_POSITION_AUX3] = -1,
 238         [PA_CHANNEL_POSITION_AUX4] = -1,
 239         [PA_CHANNEL_POSITION_AUX5] = -1,
 240         [PA_CHANNEL_POSITION_AUX6] = -1,
 241         [PA_CHANNEL_POSITION_AUX7] = -1,
 242         [PA_CHANNEL_POSITION_AUX8] = -1,
 243         [PA_CHANNEL_POSITION_AUX9] = -1,
 244         [PA_CHANNEL_POSITION_AUX10] = -1,
 245         [PA_CHANNEL_POSITION_AUX11] = -1,
 246         [PA_CHANNEL_POSITION_AUX12] = -1,
 247         [PA_CHANNEL_POSITION_AUX13] = -1,
 248         [PA_CHANNEL_POSITION_AUX14] = -1,
 249         [PA_CHANNEL_POSITION_AUX15] = -1,
 250         [PA_CHANNEL_POSITION_AUX16] = -1,
 251         [PA_CHANNEL_POSITION_AUX17] = -1,
 252         [PA_CHANNEL_POSITION_AUX18] = -1,
 253         [PA_CHANNEL_POSITION_AUX19] = -1,
 254         [PA_CHANNEL_POSITION_AUX20] = -1,
 255         [PA_CHANNEL_POSITION_AUX21] = -1,
 256         [PA_CHANNEL_POSITION_AUX22] = -1,
 257         [PA_CHANNEL_POSITION_AUX23] = -1,
 258         [PA_CHANNEL_POSITION_AUX24] = -1,
 259         [PA_CHANNEL_POSITION_AUX25] = -1,
 260         [PA_CHANNEL_POSITION_AUX26] = -1,
 261         [PA_CHANNEL_POSITION_AUX27] = -1,
 262         [PA_CHANNEL_POSITION_AUX28] = -1,
 263         [PA_CHANNEL_POSITION_AUX29] = -1,
 264         [PA_CHANNEL_POSITION_AUX30] = -1,
 265         [PA_CHANNEL_POSITION_AUX31] = -1,
 266
 267         [PA_CHANNEL_POSITION_TOP_CENTER] = SF_CHANNEL_MAP_TOP_CENTER,
 268
 269         [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SF_CHANNEL_MAP_TOP_FRONT_LEFT,
 270         [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SF_CHANNEL_MAP_TOP_FRONT_RIGHT,
 271         [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SF_CHANNEL_MAP_TOP_FRONT_CENTER ,
 272
 273         [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SF_CHANNEL_MAP_TOP_REAR_LEFT,
 274         [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SF_CHANNEL_MAP_TOP_REAR_RIGHT,
 275         [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SF_CHANNEL_MAP_TOP_REAR_CENTER,
 276     };
 277
 278     int *channels;
 279     unsigned c;
 280
 281     pa_assert(sf);
 282     pa_assert(cm);
 283
 284     /* Suppress channel mapping for the obvious cases */
 285     if (cm->channels == 1 && cm->map[0] == PA_CHANNEL_POSITION_MONO)
 286         return 0;
 287
 288     if (cm->channels == 2 &&
 289         cm->map[0] == PA_CHANNEL_POSITION_FRONT_LEFT &&
 290         cm->map[1] == PA_CHANNEL_POSITION_FRONT_RIGHT)
 291         return 0;
 292
 293     channels = pa_xnew(int, cm->channels);
 294     for (c = 0; c < cm->channels; c++) {
 295
 296         if (cm->map[c] < 0 ||
 297             cm->map[c] >= PA_CHANNEL_POSITION_MAX ||
 298             table[cm->map[c]] < 0) {
 299             pa_xfree(channels);
 300             return -1;
 301         }
 302
 303         channels[c] = table[cm->map[c]];
 304     }
 305
 306     if (!sf_command(sf, SFC_SET_CHANNEL_MAP_INFO, channels, sizeof(channels[0]) * cm->channels)) {
 307         pa_xfree(channels);
 308         return -1;
 309     }
 310
 311     pa_xfree(channels);
 312     return 0;
 313 }
 314
 315 void pa_sndfile_init_proplist(SNDFILE *sf, pa_proplist *p) {
 316
 317     static const char* table[] = {
 318         [SF_STR_TITLE] = PA_PROP_MEDIA_TITLE,
 319         [SF_STR_COPYRIGHT] = PA_PROP_MEDIA_COPYRIGHT,
 320         [SF_STR_SOFTWARE] = PA_PROP_MEDIA_SOFTWARE,
 321         [SF_STR_ARTIST] = PA_PROP_MEDIA_ARTIST,
 322         [SF_STR_COMMENT] = "media.comment",
 323         [SF_STR_DATE] = "media.date"
 324     };
 325
 326     SF_INFO sfi;
 327     SF_FORMAT_INFO fi;
 328     unsigned c;
 329
 330     pa_assert(sf);
 331     pa_assert(p);
 332
 333     for (c = 0; c < PA_ELEMENTSOF(table); c++) {
 334         const char *s;
 335         char *t;
 336
 337         if (!table[c])
 338             continue;
 339
 340         if (!(s = sf_get_string(sf, c)))
 341             continue;
 342
 343         t = pa_utf8_filter(s);
 344         pa_proplist_sets(p, table[c], t);
 345         pa_xfree(t);
 346     }
 347
 348     pa_zero(sfi);
 349     pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
 350
 351     pa_zero(fi);
 352     fi.format = sfi.format;
 353     if (sf_command(sf, SFC_GET_FORMAT_INFO, &fi, sizeof(fi)) == 0 && fi.name) {
 354         char *t;
 355
 356         t = pa_utf8_filter(fi.name);
 357         pa_proplist_sets(p, "media.format", t);
 358         pa_xfree(t);
 359     }
 360 }
 361
 362 pa_sndfile_readf_t pa_sndfile_readf_function(const pa_sample_spec *ss) {
 363     pa_assert(ss);
 364
 365     switch (ss->format) {
 366         case PA_SAMPLE_S16NE:
 367             return (pa_sndfile_readf_t) sf_readf_short;
 368
 369         case PA_SAMPLE_S32NE:
 370         case PA_SAMPLE_S24_32NE:
 371             return (pa_sndfile_readf_t) sf_readf_int;
 372
 373         case PA_SAMPLE_FLOAT32NE:
 374             return (pa_sndfile_readf_t) sf_readf_float;
 375
 376         case PA_SAMPLE_ULAW:
 377         case PA_SAMPLE_ALAW:
 378             return NULL;
 379
 380         default:
 381             pa_assert_not_reached();
 382     }
 383 }
 384
 385 pa_sndfile_writef_t pa_sndfile_writef_function(const pa_sample_spec *ss) {
 386     pa_assert(ss);
 387
 388     switch (ss->format) {
 389         case PA_SAMPLE_S16NE:
 390             return (pa_sndfile_writef_t) sf_writef_short;
 391
 392         case PA_SAMPLE_S32NE:
 393         case PA_SAMPLE_S24_32NE:
 394             return (pa_sndfile_writef_t) sf_writef_int;
 395
 396         case PA_SAMPLE_FLOAT32NE:
 397             return (pa_sndfile_writef_t) sf_writef_float;
 398
 399         case PA_SAMPLE_ULAW:
 400         case PA_SAMPLE_ALAW:
 401             return NULL;
 402
 403         default:
 404             pa_assert_not_reached();
 405     }
 406 }
 407
 408 int pa_sndfile_format_from_string(const char *name) {
 409     int i, count = 0;
 410
 411
 412     if (!name[0])
 413         return -1;
 414
 415     pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(int)) == 0);
 416
 417     /* First try to match via full type string */
 418     for (i = 0; i < count; i++) {
 419         SF_FORMAT_INFO fi;
 420         pa_zero(fi);
 421         fi.format = i;
 422
 423         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 424
 425         if (strcasecmp(name, fi.name) == 0)
 426             return fi.format;
 427     }
 428
 429     /* Then, try to match via the full extension */
 430     for (i = 0; i < count; i++) {
 431         SF_FORMAT_INFO fi;
 432         pa_zero(fi);
 433         fi.format = i;
 434
 435         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 436
 437         if (strcasecmp(name, fi.extension) == 0)
 438             return fi.format;
 439     }
 440
 441     /* Then, try to match via the start of the type string */
 442     for (i = 0; i < count; i++) {
 443         SF_FORMAT_INFO fi;
 444         pa_zero(fi);
 445         fi.format = i;
 446
 447         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 448
 449         if (strncasecmp(name, fi.extension, strlen(name)) == 0)
 450             return fi.format;
 451     }
 452
 453     return -1;
 454 }
 455
 456 void pa_sndfile_dump_formats(void) {
 457     int i, count = 0;
 458
 459     pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(int)) == 0);
 460
 461     for (i = 0; i < count; i++) {
 462         SF_FORMAT_INFO fi;
 463         pa_zero(fi);
 464         fi.format = i;
 465
 466         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 467         printf("%s\t%s\n", fi.extension, fi.name);
 468     }
 469 }