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 #include <pulsecore/core-util.h>
  33
  34 #include "sndfile-util.h"
  35
  36 int pa_sndfile_read_sample_spec(SNDFILE *sf, pa_sample_spec *ss) {
  37     SF_INFO sfi;
  38
  39     pa_assert(sf);
  40     pa_assert(ss);
  41
  42     pa_zero(sfi);
  43     pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
  44
  45     switch (sfi.format & SF_FORMAT_SUBMASK) {
  46
  47         case SF_FORMAT_PCM_16:
  48         case SF_FORMAT_PCM_U8:
  49         case SF_FORMAT_PCM_S8:
  50             ss->format = PA_SAMPLE_S16NE;
  51             break;
  52
  53         case SF_FORMAT_PCM_24:
  54             ss->format = PA_SAMPLE_S24NE;
  55             break;
  56
  57         case SF_FORMAT_PCM_32:
  58             ss->format = PA_SAMPLE_S32NE;
  59             break;
  60
  61         case SF_FORMAT_ULAW:
  62             ss->format = PA_SAMPLE_ULAW;
  63             break;
  64
  65         case SF_FORMAT_ALAW:
  66             ss->format = PA_SAMPLE_ALAW;
  67             break;
  68
  69         case SF_FORMAT_FLOAT:
  70         case SF_FORMAT_DOUBLE:
  71         default:
  72             ss->format = PA_SAMPLE_FLOAT32NE;
  73             break;
  74     }
  75
  76     ss->rate = (uint32_t) sfi.samplerate;
  77     ss->channels = (uint8_t) sfi.channels;
  78
  79     if (!pa_sample_spec_valid(ss))
  80         return -1;
  81
  82     return 0;
  83 }
  84
  85 int pa_sndfile_write_sample_spec(SF_INFO *sfi, pa_sample_spec *ss) {
  86     pa_assert(sfi);
  87     pa_assert(ss);
  88
  89     sfi->samplerate = (int) ss->rate;
  90     sfi->channels = (int) ss->channels;
  91
  92     if (pa_sample_format_is_le(ss->format) > 0)
  93         sfi->format = SF_ENDIAN_LITTLE;
  94     else if (pa_sample_format_is_be(ss->format) > 0)
  95         sfi->format = SF_ENDIAN_BIG;
  96
  97     switch (ss->format) {
  98
  99         case PA_SAMPLE_U8:
 100             ss->format = PA_SAMPLE_S16NE;
 101             sfi->format = SF_FORMAT_PCM_U8;
 102             break;
 103
 104         case PA_SAMPLE_S16LE:
 105         case PA_SAMPLE_S16BE:
 106             ss->format = PA_SAMPLE_S16NE;
 107             sfi->format |= SF_FORMAT_PCM_16;
 108             break;
 109
 110         case PA_SAMPLE_S24LE:
 111         case PA_SAMPLE_S24BE:
 112             ss->format = PA_SAMPLE_S24NE;
 113             sfi->format |= SF_FORMAT_PCM_24;
 114             break;
 115
 116         case PA_SAMPLE_S24_32LE:
 117         case PA_SAMPLE_S24_32BE:
 118             ss->format = PA_SAMPLE_S24_32NE;
 119             sfi->format |= SF_FORMAT_PCM_32;
 120             break;
 121
 122         case PA_SAMPLE_S32LE:
 123         case PA_SAMPLE_S32BE:
 124             ss->format = PA_SAMPLE_S32NE;
 125             sfi->format |= SF_FORMAT_PCM_32;
 126             break;
 127
 128         case PA_SAMPLE_ULAW:
 129             sfi->format = SF_FORMAT_ULAW;
 130             break;
 131
 132         case PA_SAMPLE_ALAW:
 133             sfi->format = SF_FORMAT_ALAW;
 134             break;
 135
 136         case PA_SAMPLE_FLOAT32LE:
 137         case PA_SAMPLE_FLOAT32BE:
 138         default:
 139             ss->format = PA_SAMPLE_FLOAT32NE;
 140             sfi->format |= SF_FORMAT_FLOAT;
 141             break;
 142     }
 143
 144
 145     if (!pa_sample_spec_valid(ss))
 146         return -1;
 147
 148     return 0;
 149 }
 150
 151 int pa_sndfile_read_channel_map(SNDFILE *sf, pa_channel_map *cm) {
 152
 153     static const pa_channel_position_t table[] = {
 154         [SF_CHANNEL_MAP_MONO] =                  PA_CHANNEL_POSITION_MONO,
 155         [SF_CHANNEL_MAP_LEFT] =                  PA_CHANNEL_POSITION_FRONT_LEFT, /* libsndfile distuingishes left und front-left, which we don't */
 156         [SF_CHANNEL_MAP_RIGHT] =                 PA_CHANNEL_POSITION_FRONT_RIGHT,
 157         [SF_CHANNEL_MAP_CENTER] =                PA_CHANNEL_POSITION_FRONT_CENTER,
 158         [SF_CHANNEL_MAP_FRONT_LEFT] =            PA_CHANNEL_POSITION_FRONT_LEFT,
 159         [SF_CHANNEL_MAP_FRONT_RIGHT] =           PA_CHANNEL_POSITION_FRONT_RIGHT,
 160         [SF_CHANNEL_MAP_FRONT_CENTER] =          PA_CHANNEL_POSITION_FRONT_CENTER,
 161         [SF_CHANNEL_MAP_REAR_CENTER] =           PA_CHANNEL_POSITION_REAR_CENTER,
 162         [SF_CHANNEL_MAP_REAR_LEFT] =             PA_CHANNEL_POSITION_REAR_LEFT,
 163         [SF_CHANNEL_MAP_REAR_RIGHT] =            PA_CHANNEL_POSITION_REAR_RIGHT,
 164         [SF_CHANNEL_MAP_LFE] =                   PA_CHANNEL_POSITION_LFE,
 165         [SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER] =  PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
 166         [SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
 167         [SF_CHANNEL_MAP_SIDE_LEFT] =             PA_CHANNEL_POSITION_SIDE_LEFT,
 168         [SF_CHANNEL_MAP_SIDE_RIGHT] =            PA_CHANNEL_POSITION_SIDE_RIGHT,
 169         [SF_CHANNEL_MAP_TOP_CENTER] =            PA_CHANNEL_POSITION_TOP_CENTER,
 170         [SF_CHANNEL_MAP_TOP_FRONT_LEFT] =        PA_CHANNEL_POSITION_TOP_FRONT_LEFT,
 171         [SF_CHANNEL_MAP_TOP_FRONT_RIGHT] =       PA_CHANNEL_POSITION_TOP_FRONT_RIGHT,
 172         [SF_CHANNEL_MAP_TOP_FRONT_CENTER] =      PA_CHANNEL_POSITION_TOP_FRONT_CENTER,
 173         [SF_CHANNEL_MAP_TOP_REAR_LEFT] =         PA_CHANNEL_POSITION_TOP_REAR_LEFT,
 174         [SF_CHANNEL_MAP_TOP_REAR_RIGHT] =        PA_CHANNEL_POSITION_TOP_REAR_RIGHT,
 175         [SF_CHANNEL_MAP_TOP_REAR_CENTER] =       PA_CHANNEL_POSITION_TOP_REAR_CENTER
 176     };
 177
 178     SF_INFO sfi;
 179     int *channels;
 180     unsigned c;
 181
 182     pa_assert(sf);
 183     pa_assert(cm);
 184
 185     pa_zero(sfi);
 186     pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
 187
 188     channels = pa_xnew(int, sfi.channels);
 189     if (!sf_command(sf, SFC_GET_CHANNEL_MAP_INFO,
 190                     channels, sizeof(channels[0]) * sfi.channels)) {
 191
 192         pa_xfree(channels);
 193         return -1;
 194     }
 195
 196     cm->channels = (uint8_t) sfi.channels;
 197     for (c = 0; c < cm->channels; c++) {
 198         if (channels[c] <= SF_CHANNEL_MAP_INVALID ||
 199             (unsigned) channels[c] >= PA_ELEMENTSOF(table)) {
 200             pa_xfree(channels);
 201             return -1;
 202         }
 203
 204         cm->map[c] = table[channels[c]];
 205     }
 206
 207     pa_xfree(channels);
 208
 209     if (!pa_channel_map_valid(cm))
 210         return -1;
 211
 212     return 0;
 213 }
 214
 215 int pa_sndfile_write_channel_map(SNDFILE *sf, pa_channel_map *cm) {
 216     static const int table[PA_CHANNEL_POSITION_MAX] = {
 217         [PA_CHANNEL_POSITION_MONO] = SF_CHANNEL_MAP_MONO,
 218
 219         [PA_CHANNEL_POSITION_FRONT_LEFT] = SF_CHANNEL_MAP_FRONT_LEFT,
 220         [PA_CHANNEL_POSITION_FRONT_RIGHT] = SF_CHANNEL_MAP_FRONT_RIGHT,
 221         [PA_CHANNEL_POSITION_FRONT_CENTER] = SF_CHANNEL_MAP_FRONT_CENTER,
 222
 223         [PA_CHANNEL_POSITION_REAR_CENTER] = SF_CHANNEL_MAP_REAR_CENTER,
 224         [PA_CHANNEL_POSITION_REAR_LEFT] = SF_CHANNEL_MAP_REAR_LEFT,
 225         [PA_CHANNEL_POSITION_REAR_RIGHT] = SF_CHANNEL_MAP_REAR_RIGHT,
 226
 227         [PA_CHANNEL_POSITION_LFE] = SF_CHANNEL_MAP_LFE,
 228
 229         [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER,
 230         [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER,
 231
 232         [PA_CHANNEL_POSITION_SIDE_LEFT] = SF_CHANNEL_MAP_SIDE_LEFT,
 233         [PA_CHANNEL_POSITION_SIDE_RIGHT] = SF_CHANNEL_MAP_SIDE_RIGHT,
 234
 235         [PA_CHANNEL_POSITION_AUX0] = -1,
 236         [PA_CHANNEL_POSITION_AUX1] = -1,
 237         [PA_CHANNEL_POSITION_AUX2] = -1,
 238         [PA_CHANNEL_POSITION_AUX3] = -1,
 239         [PA_CHANNEL_POSITION_AUX4] = -1,
 240         [PA_CHANNEL_POSITION_AUX5] = -1,
 241         [PA_CHANNEL_POSITION_AUX6] = -1,
 242         [PA_CHANNEL_POSITION_AUX7] = -1,
 243         [PA_CHANNEL_POSITION_AUX8] = -1,
 244         [PA_CHANNEL_POSITION_AUX9] = -1,
 245         [PA_CHANNEL_POSITION_AUX10] = -1,
 246         [PA_CHANNEL_POSITION_AUX11] = -1,
 247         [PA_CHANNEL_POSITION_AUX12] = -1,
 248         [PA_CHANNEL_POSITION_AUX13] = -1,
 249         [PA_CHANNEL_POSITION_AUX14] = -1,
 250         [PA_CHANNEL_POSITION_AUX15] = -1,
 251         [PA_CHANNEL_POSITION_AUX16] = -1,
 252         [PA_CHANNEL_POSITION_AUX17] = -1,
 253         [PA_CHANNEL_POSITION_AUX18] = -1,
 254         [PA_CHANNEL_POSITION_AUX19] = -1,
 255         [PA_CHANNEL_POSITION_AUX20] = -1,
 256         [PA_CHANNEL_POSITION_AUX21] = -1,
 257         [PA_CHANNEL_POSITION_AUX22] = -1,
 258         [PA_CHANNEL_POSITION_AUX23] = -1,
 259         [PA_CHANNEL_POSITION_AUX24] = -1,
 260         [PA_CHANNEL_POSITION_AUX25] = -1,
 261         [PA_CHANNEL_POSITION_AUX26] = -1,
 262         [PA_CHANNEL_POSITION_AUX27] = -1,
 263         [PA_CHANNEL_POSITION_AUX28] = -1,
 264         [PA_CHANNEL_POSITION_AUX29] = -1,
 265         [PA_CHANNEL_POSITION_AUX30] = -1,
 266         [PA_CHANNEL_POSITION_AUX31] = -1,
 267
 268         [PA_CHANNEL_POSITION_TOP_CENTER] = SF_CHANNEL_MAP_TOP_CENTER,
 269
 270         [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SF_CHANNEL_MAP_TOP_FRONT_LEFT,
 271         [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SF_CHANNEL_MAP_TOP_FRONT_RIGHT,
 272         [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SF_CHANNEL_MAP_TOP_FRONT_CENTER ,
 273
 274         [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SF_CHANNEL_MAP_TOP_REAR_LEFT,
 275         [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SF_CHANNEL_MAP_TOP_REAR_RIGHT,
 276         [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SF_CHANNEL_MAP_TOP_REAR_CENTER,
 277     };
 278
 279     int *channels;
 280     unsigned c;
 281
 282     pa_assert(sf);
 283     pa_assert(cm);
 284
 285     /* Suppress channel mapping for the obvious cases */
 286     if (cm->channels == 1 && cm->map[0] == PA_CHANNEL_POSITION_MONO)
 287         return 0;
 288
 289     if (cm->channels == 2 &&
 290         cm->map[0] == PA_CHANNEL_POSITION_FRONT_LEFT &&
 291         cm->map[1] == PA_CHANNEL_POSITION_FRONT_RIGHT)
 292         return 0;
 293
 294     channels = pa_xnew(int, cm->channels);
 295     for (c = 0; c < cm->channels; c++) {
 296
 297         if (cm->map[c] < 0 ||
 298             cm->map[c] >= PA_CHANNEL_POSITION_MAX ||
 299             table[cm->map[c]] < 0) {
 300             pa_xfree(channels);
 301             return -1;
 302         }
 303
 304         channels[c] = table[cm->map[c]];
 305     }
 306
 307     if (!sf_command(sf, SFC_SET_CHANNEL_MAP_INFO,
 308                     channels, sizeof(channels[0]) * cm->channels)) {
 309         pa_xfree(channels);
 310         return -1;
 311     }
 312
 313     pa_xfree(channels);
 314     return 0;
 315 }
 316
 317 void pa_sndfile_init_proplist(SNDFILE *sf, pa_proplist *p) {
 318
 319     static const char* table[] = {
 320         [SF_STR_TITLE] = PA_PROP_MEDIA_TITLE,
 321         [SF_STR_COPYRIGHT] = PA_PROP_MEDIA_COPYRIGHT,
 322         [SF_STR_SOFTWARE] = PA_PROP_MEDIA_SOFTWARE,
 323         [SF_STR_ARTIST] = PA_PROP_MEDIA_ARTIST,
 324         [SF_STR_COMMENT] = "media.comment",
 325         [SF_STR_DATE] = "media.date"
 326     };
 327
 328     SF_INFO sfi;
 329     SF_FORMAT_INFO fi;
 330     unsigned c;
 331
 332     pa_assert(sf);
 333     pa_assert(p);
 334
 335     for (c = 0; c < PA_ELEMENTSOF(table); c++) {
 336         const char *s;
 337         char *t;
 338
 339         if (!table[c])
 340             continue;
 341
 342         if (!(s = sf_get_string(sf, c)))
 343             continue;
 344
 345         t = pa_utf8_filter(s);
 346         pa_proplist_sets(p, table[c], t);
 347         pa_xfree(t);
 348     }
 349
 350     pa_zero(sfi);
 351     pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
 352
 353     pa_zero(fi);
 354     fi.format = sfi.format;
 355     if (sf_command(sf, SFC_GET_FORMAT_INFO, &fi, sizeof(fi)) == 0 && fi.name) {
 356         char *t;
 357
 358         t = pa_utf8_filter(fi.name);
 359         pa_proplist_sets(p, "media.format", t);
 360         pa_xfree(t);
 361     }
 362 }
 363
 364 pa_sndfile_readf_t pa_sndfile_readf_function(const pa_sample_spec *ss) {
 365     pa_assert(ss);
 366
 367     switch (ss->format) {
 368         case PA_SAMPLE_S16NE:
 369             return (pa_sndfile_readf_t) sf_readf_short;
 370
 371         case PA_SAMPLE_S32NE:
 372         case PA_SAMPLE_S24_32NE:
 373             return (pa_sndfile_readf_t) sf_readf_int;
 374
 375         case PA_SAMPLE_FLOAT32NE:
 376             return (pa_sndfile_readf_t) sf_readf_float;
 377
 378         case PA_SAMPLE_ULAW:
 379         case PA_SAMPLE_ALAW:
 380             return NULL;
 381
 382         default:
 383             pa_assert_not_reached();
 384     }
 385 }
 386
 387 pa_sndfile_writef_t pa_sndfile_writef_function(const pa_sample_spec *ss) {
 388     pa_assert(ss);
 389
 390     switch (ss->format) {
 391         case PA_SAMPLE_S16NE:
 392             return (pa_sndfile_writef_t) sf_writef_short;
 393
 394         case PA_SAMPLE_S32NE:
 395         case PA_SAMPLE_S24_32NE:
 396             return (pa_sndfile_writef_t) sf_writef_int;
 397
 398         case PA_SAMPLE_FLOAT32NE:
 399             return (pa_sndfile_writef_t) sf_writef_float;
 400
 401         case PA_SAMPLE_ULAW:
 402         case PA_SAMPLE_ALAW:
 403             return NULL;
 404
 405         default:
 406             pa_assert_not_reached();
 407     }
 408 }
 409
 410 int pa_sndfile_format_from_string(const char *name) {
 411     int i, count = 0;
 412
 413
 414     if (!name[0])
 415         return -1;
 416
 417     pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(int)) == 0);
 418
 419     /* First try to match via full type string */
 420     for (i = 0; i < count; i++) {
 421         SF_FORMAT_INFO fi;
 422         pa_zero(fi);
 423         fi.format = i;
 424
 425         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 426
 427         if (strcasecmp(name, fi.name) == 0)
 428             return fi.format;
 429     }
 430
 431     /* Then, try to match via the full extension */
 432     for (i = 0; i < count; i++) {
 433         SF_FORMAT_INFO fi;
 434         pa_zero(fi);
 435         fi.format = i;
 436
 437         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 438
 439         if (strcasecmp(name, fi.extension) == 0)
 440             return fi.format;
 441     }
 442
 443     /* Then, try to match via the start of the type string */
 444     for (i = 0; i < count; i++) {
 445         SF_FORMAT_INFO fi;
 446         pa_zero(fi);
 447         fi.format = i;
 448
 449         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 450
 451         if (strncasecmp(name, fi.extension, strlen(name)) == 0)
 452             return fi.format;
 453     }
 454
 455     return -1;
 456 }
 457
 458 void pa_sndfile_dump_formats(void) {
 459     int i, count = 0;
 460
 461     pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(int)) == 0);
 462
 463     for (i = 0; i < count; i++) {
 464         SF_FORMAT_INFO fi;
 465         pa_zero(fi);
 466         fi.format = i;
 467
 468         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
 469         printf("%s\t%s\n", fi.extension, fi.name);
 470     }
 471 }