Alc/pulseaudio.c

   1 /**
   2  * OpenAL cross platform audio library
   3  * Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
   4  * This library is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU Library General Public
   6  *  License as published by the Free Software Foundation; either
   7  *  version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library 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 GNU
  12  *  Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  *  License along with this library; if not, write to the
  16  *  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  *  Boston, MA  02111-1307, USA.
  18  * Or go to http://www.gnu.org/copyleft/lgpl.html
  19  */
  20
  21 #include "config.h"
  22
  23 #include "alMain.h"
  24 #ifdef HAVE_DLFCN_H
  25 #include <dlfcn.h>
  26 #endif
  27
  28 #include <pulse/pulseaudio.h>
  29
  30 #if PA_API_VERSION == 11
  31 #define PA_STREAM_ADJUST_LATENCY 0x2000U
  32 static inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
  33 {
  34     return (x == PA_STREAM_CREATING || x == PA_STREAM_READY);
  35 }
  36 static inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
  37 {
  38     return (x == PA_CONTEXT_CONNECTING || x == PA_CONTEXT_AUTHORIZING ||
  39             x == PA_CONTEXT_SETTING_NAME || x == PA_CONTEXT_READY);
  40 }
  41 #define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD
  42 #define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD
  43 #elif PA_API_VERSION != 12
  44 #error Invalid PulseAudio API version
  45 #endif
  46
  47 static void *pa_handle;
  48 #define MAKE_FUNC(x) static typeof(x) * p##x
  49 MAKE_FUNC(pa_context_unref);
  50 MAKE_FUNC(pa_sample_spec_valid);
  51 MAKE_FUNC(pa_stream_drop);
  52 MAKE_FUNC(pa_strerror);
  53 MAKE_FUNC(pa_context_get_state);
  54 MAKE_FUNC(pa_stream_get_state);
  55 MAKE_FUNC(pa_threaded_mainloop_signal);
  56 MAKE_FUNC(pa_stream_peek);
  57 MAKE_FUNC(pa_threaded_mainloop_wait);
  58 MAKE_FUNC(pa_threaded_mainloop_unlock);
  59 MAKE_FUNC(pa_context_new);
  60 MAKE_FUNC(pa_threaded_mainloop_stop);
  61 MAKE_FUNC(pa_context_disconnect);
  62 MAKE_FUNC(pa_threaded_mainloop_start);
  63 MAKE_FUNC(pa_threaded_mainloop_get_api);
  64 MAKE_FUNC(pa_context_set_state_callback);
  65 MAKE_FUNC(pa_stream_write);
  66 MAKE_FUNC(pa_xfree);
  67 MAKE_FUNC(pa_stream_connect_record);
  68 MAKE_FUNC(pa_stream_connect_playback);
  69 MAKE_FUNC(pa_path_get_filename);
  70 MAKE_FUNC(pa_get_binary_name);
  71 MAKE_FUNC(pa_threaded_mainloop_free);
  72 MAKE_FUNC(pa_context_errno);
  73 MAKE_FUNC(pa_xmalloc0);
  74 MAKE_FUNC(pa_stream_unref);
  75 MAKE_FUNC(pa_threaded_mainloop_accept);
  76 MAKE_FUNC(pa_stream_set_write_callback);
  77 MAKE_FUNC(pa_threaded_mainloop_new);
  78 MAKE_FUNC(pa_context_connect);
  79 MAKE_FUNC(pa_stream_set_read_callback);
  80 MAKE_FUNC(pa_stream_set_state_callback);
  81 MAKE_FUNC(pa_stream_new);
  82 MAKE_FUNC(pa_stream_disconnect);
  83 MAKE_FUNC(pa_threaded_mainloop_lock);
  84 #undef MAKE_FUNC
  85
  86 typedef struct {
  87     ALCdevice *device;
  88
  89     ALCuint samples;
  90     ALCuint frame_size;
  91
  92     RingBuffer *ring;
  93
  94     pa_buffer_attr attr;
  95     pa_sample_spec spec;
  96
  97     char path_name[PATH_MAX];
  98     const char *context_name;
  99     const char *stream_name;
 100
 101     pa_threaded_mainloop *loop;
 102
 103     pa_stream *stream;
 104     pa_context *context;
 105 } pulse_data;
 106
 107 static char *pulse_device;
 108 static char *pulse_capture_device;
 109
 110 // PulseAudio Event Callbacks {{{
 111 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
 112 {
 113     pulse_data *data = pdata;
 114
 115     switch(ppa_stream_get_state(stream))
 116         {
 117                 case PA_STREAM_READY:
 118             AL_PRINT("%s: %s ready!\n", data->context_name, data->stream_name);
 119                         break;
 120
 121                 case PA_STREAM_FAILED:
 122             AL_PRINT("%s: %s: Connection failed: %s\n", data->context_name,
 123                      data->stream_name, ppa_strerror(ppa_context_errno(data->context)));
 124                         break;
 125
 126                 case PA_STREAM_TERMINATED:
 127             AL_PRINT("%s: %s terminated!\n", data->context_name, data->stream_name);
 128                         break;
 129
 130                 default:
 131                         break;
 132         }
 133
 134     ppa_threaded_mainloop_signal(data->loop, 1);
 135 } //}}}
 136
 137 static void context_state_callback(pa_context *context, void *pdata) //{{{
 138 {
 139     pulse_data *data = pdata;
 140
 141     switch(ppa_context_get_state(context))
 142         {
 143                 case PA_CONTEXT_READY:
 144             AL_PRINT("%s ready!\n", data->context_name);
 145                         break;
 146
 147                 case PA_CONTEXT_FAILED:
 148             AL_PRINT("%s: Connection failed: %s\n", data->context_name,
 149                      ppa_strerror(ppa_context_errno(context)));
 150             break;
 151
 152                 case PA_CONTEXT_TERMINATED:
 153             AL_PRINT("%s terminated!\n", data->context_name);
 154                         break;
 155
 156                 default:
 157                         break;
 158         }
 159
 160     ppa_threaded_mainloop_signal(data->loop, 1);
 161 } //}}}
 162 //}}}
 163
 164 // PulseAudio I/O Callbacks //{{{
 165 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata) //{{{
 166 {
 167     ALCdevice *Device = pdata;
 168     void *buf = ppa_xmalloc0(len);
 169
 170     SuspendContext(NULL);
 171     aluMixData(Device->Context, buf, len, Device->Format);
 172     ProcessContext(NULL);
 173
 174     ppa_stream_write(stream, buf, len, ppa_xfree, 0, PA_SEEK_RELATIVE);
 175 } //}}}
 176
 177 static void stream_read_callback(pa_stream *stream, size_t length, void *pdata) //{{{
 178 {
 179     ALCdevice *Device = pdata;
 180     pulse_data *data = Device->ExtraData;
 181     const void *buf;
 182
 183     if(ppa_stream_peek(stream, &buf, &length) < 0)
 184     {
 185         AL_PRINT("pa_stream_peek() failed: %s\n",
 186                  ppa_strerror(ppa_context_errno(data->context)));
 187         return;
 188     }
 189
 190     assert(buf);
 191     assert(length);
 192
 193     length /= data->frame_size;
 194
 195     if(data->samples < length)
 196         AL_PRINT("stream_read_callback: buffer overflow!\n");
 197
 198     WriteRingBuffer(data->ring, buf, (length<data->samples) ? length : data->samples);
 199
 200     ppa_stream_drop(stream);
 201 } //}}}
 202 //}}}
 203
 204 static ALCboolean pulse_open(ALCdevice *device, ALCchar *device_name) //{{{
 205 {
 206     pulse_data *data = ppa_xmalloc0(sizeof(pulse_data));
 207
 208     data->device = device;
 209     data->samples = device->BufferSize;
 210     data->frame_size = aluBytesFromFormat(device->Format) *
 211                        aluChannelsFromFormat(device->Format);
 212
 213     if(ppa_get_binary_name(data->path_name, sizeof(data->path_name)))
 214         data->context_name = ppa_path_get_filename(data->path_name);
 215     else
 216         data->context_name = "OpenAL Soft";
 217
 218     if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples)))
 219     {
 220         ppa_xfree(data);
 221         return ALC_FALSE;
 222     }
 223
 224     device->ExtraData = data;
 225     device->szDeviceName = device_name;
 226
 227     if(!(data->loop = ppa_threaded_mainloop_new()))
 228     {
 229         AL_PRINT("pa_threaded_mainloop_new() failed!\n");
 230         goto out;
 231     }
 232
 233     if(ppa_threaded_mainloop_start(data->loop) < 0)
 234     {
 235         AL_PRINT("pa_threaded_mainloop_start() failed\n");
 236         goto out;
 237     }
 238
 239     ppa_threaded_mainloop_lock(data->loop);
 240
 241     data->context = ppa_context_new(ppa_threaded_mainloop_get_api(data->loop), data->context_name);
 242     if(!data->context)
 243     {
 244         AL_PRINT("pa_context_new() failed: %s\n",
 245                  ppa_strerror(ppa_context_errno(data->context)));
 246
 247         ppa_threaded_mainloop_unlock(data->loop);
 248         goto out;
 249     }
 250
 251     ppa_context_set_state_callback(data->context, context_state_callback, data);
 252
 253     if(ppa_context_connect(data->context, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL) < 0)
 254     {
 255         AL_PRINT("Context did not connect: %s\n",
 256                  ppa_strerror(ppa_context_errno(data->context)));
 257
 258         ppa_context_unref(data->context);
 259         data->context = NULL;
 260
 261         ppa_threaded_mainloop_unlock(data->loop);
 262         goto out;
 263     }
 264
 265     while(ppa_context_get_state(data->context) != PA_CONTEXT_READY)
 266     {
 267         if(!PA_CONTEXT_IS_GOOD(ppa_context_get_state(data->context)))
 268         {
 269             AL_PRINT("Context did not get ready: %s\n",
 270                      ppa_strerror(ppa_context_errno(data->context)));
 271
 272             ppa_context_unref(data->context);
 273             data->context = NULL;
 274
 275             ppa_threaded_mainloop_unlock(data->loop);
 276             goto out;
 277         }
 278
 279         ppa_threaded_mainloop_wait(data->loop);
 280         ppa_threaded_mainloop_accept(data->loop);
 281     }
 282
 283     ppa_threaded_mainloop_unlock(data->loop);
 284     return ALC_TRUE;
 285
 286 out:
 287     if(data->loop)
 288     {
 289         ppa_threaded_mainloop_stop(data->loop);
 290         ppa_threaded_mainloop_free(data->loop);
 291     }
 292     device->ExtraData = NULL;
 293     device->szDeviceName = NULL;
 294     DestroyRingBuffer(data->ring);
 295
 296     ppa_xfree(data);
 297     return ALC_FALSE;
 298 } //}}}
 299
 300 static void pulse_close(ALCdevice *device) //{{{
 301 {
 302     pulse_data *data = device->ExtraData;
 303
 304     ppa_threaded_mainloop_lock(data->loop);
 305
 306     if(data->stream)
 307     {
 308         ppa_stream_disconnect(data->stream);
 309         ppa_stream_unref(data->stream);
 310     }
 311
 312     ppa_context_disconnect(data->context);
 313     ppa_context_unref(data->context);
 314
 315     ppa_threaded_mainloop_unlock(data->loop);
 316
 317     ppa_threaded_mainloop_stop(data->loop);
 318     ppa_threaded_mainloop_free(data->loop);
 319
 320     device->ExtraData = NULL;
 321     device->szDeviceName = NULL;
 322     DestroyRingBuffer(data->ring);
 323
 324     ppa_xfree(data);
 325 } //}}}
 326 //}}}
 327
 328 // OpenAL {{{
 329 static ALCboolean pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
 330 {
 331     if(!pa_handle)
 332         return ALC_FALSE;
 333
 334     if(device_name)
 335     {
 336         if(strcmp(device_name, pulse_device) != 0)
 337             return ALC_FALSE;
 338     }
 339
 340     return pulse_open(device, pulse_device);
 341 } //}}}
 342
 343 static void pulse_close_playback(ALCdevice *device) //{{{
 344 {
 345     pulse_close(device);
 346 } //}}}
 347
 348 static ALCboolean pulse_start_context(ALCdevice *device, ALCcontext *context) //{{{
 349 {
 350     pulse_data *data = device->ExtraData;
 351     (void)context;
 352
 353     ppa_threaded_mainloop_lock(data->loop);
 354
 355     device->UpdateSize = device->BufferSize / 4;
 356
 357     data->attr.minreq = -1;
 358     data->attr.prebuf = -1;
 359     data->attr.maxlength = -1;
 360     data->attr.fragsize = data->frame_size * device->UpdateSize;
 361     data->attr.tlength = data->attr.fragsize * 4;
 362     data->stream_name = "Playback Stream";
 363
 364     data->spec.rate = device->Frequency;
 365     data->spec.channels = aluChannelsFromFormat(device->Format);
 366
 367     switch(aluBytesFromFormat(device->Format))
 368     {
 369         case 1:
 370             data->spec.format = PA_SAMPLE_U8;
 371             break;
 372         case 2:
 373             data->spec.format = PA_SAMPLE_S16NE;
 374             break;
 375         default:
 376             AL_PRINT("Unknown format: %x\n", device->Format);
 377             ppa_threaded_mainloop_unlock(data->loop);
 378             return ALC_FALSE;
 379     }
 380
 381     if(ppa_sample_spec_valid(&data->spec) == 0)
 382     {
 383         AL_PRINT("Invalid sample format\n");
 384         ppa_threaded_mainloop_unlock(data->loop);
 385         return ALC_FALSE;
 386     }
 387
 388     data->stream = ppa_stream_new(data->context, data->stream_name, &data->spec, NULL);
 389     if(!data->stream)
 390     {
 391         AL_PRINT("pa_stream_new() failed: %s\n",
 392                  ppa_strerror(ppa_context_errno(data->context)));
 393
 394         ppa_threaded_mainloop_unlock(data->loop);
 395         return ALC_FALSE;
 396     }
 397
 398     ppa_stream_set_state_callback(data->stream, stream_state_callback, data);
 399     ppa_stream_set_write_callback(data->stream, stream_write_callback, device);
 400
 401     if(ppa_stream_connect_playback(data->stream, NULL, &data->attr, PA_STREAM_ADJUST_LATENCY, NULL, NULL) < 0)
 402     {
 403         AL_PRINT("Stream did not connect: %s\n",
 404                  ppa_strerror(ppa_context_errno(data->context)));
 405
 406         ppa_stream_unref(data->stream);
 407         data->stream = NULL;
 408
 409         ppa_threaded_mainloop_unlock(data->loop);
 410         return ALC_FALSE;
 411     }
 412
 413     while(ppa_stream_get_state(data->stream) != PA_STREAM_READY)
 414     {
 415         if(!PA_STREAM_IS_GOOD(ppa_stream_get_state(data->stream)))
 416         {
 417             AL_PRINT("Stream did not get ready: %s\n",
 418                      ppa_strerror(ppa_context_errno(data->context)));
 419
 420             ppa_stream_unref(data->stream);
 421             data->stream = NULL;
 422
 423             ppa_threaded_mainloop_unlock(data->loop);
 424             return ALC_FALSE;
 425         }
 426
 427         ppa_threaded_mainloop_wait(data->loop);
 428         ppa_threaded_mainloop_accept(data->loop);
 429     }
 430
 431     ppa_threaded_mainloop_unlock(data->loop);
 432     return ALC_TRUE;
 433 } //}}}
 434
 435 static void pulse_stop_context(ALCdevice *device, ALCcontext *context) //{{{
 436 {
 437     pulse_data *data = device->ExtraData;
 438     (void)context;
 439
 440     if(!data->stream)
 441         return;
 442
 443     ppa_threaded_mainloop_lock(data->loop);
 444
 445     ppa_stream_disconnect(data->stream);
 446     ppa_stream_unref(data->stream);
 447     data->stream = NULL;
 448
 449     ppa_threaded_mainloop_unlock(data->loop);
 450 } //}}}
 451
 452
 453 static ALCboolean pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
 454 {
 455     pulse_data *data;
 456
 457     if(!pa_handle)
 458         return ALC_FALSE;
 459
 460     if(device_name)
 461     {
 462         if(strcmp(device_name, pulse_capture_device) != 0)
 463             return ALC_FALSE;
 464     }
 465
 466     if(pulse_open(device, pulse_capture_device) == ALC_FALSE)
 467         return ALC_FALSE;
 468
 469     data = device->ExtraData;
 470     ppa_threaded_mainloop_lock(data->loop);
 471
 472     data->attr.minreq = -1;
 473     data->attr.prebuf = -1;
 474     data->attr.maxlength = -1;
 475     data->attr.tlength = -1;
 476     data->attr.fragsize = data->frame_size * data->samples / 2;
 477     data->stream_name = "Capture Stream";
 478
 479     data->spec.rate = device->Frequency;
 480     data->spec.channels = aluChannelsFromFormat(device->Format);
 481
 482     switch(aluBytesFromFormat(device->Format))
 483     {
 484         case 1:
 485             data->spec.format = PA_SAMPLE_U8;
 486             break;
 487         case 2:
 488             data->spec.format = PA_SAMPLE_S16NE;
 489             break;
 490         default:
 491             AL_PRINT("Unknown format: %x\n", device->Format);
 492             ppa_threaded_mainloop_unlock(data->loop);
 493             pulse_close(device);
 494             return ALC_FALSE;
 495     }
 496
 497     if(ppa_sample_spec_valid(&data->spec) == 0)
 498     {
 499         AL_PRINT("Invalid sample format\n");
 500         ppa_threaded_mainloop_unlock(data->loop);
 501         pulse_close(device);
 502         return ALC_FALSE;
 503     }
 504
 505     data->stream = ppa_stream_new(data->context, data->stream_name, &data->spec, NULL);
 506     if(!data->stream)
 507     {
 508         AL_PRINT("pa_stream_new() failed: %s\n",
 509                  ppa_strerror(ppa_context_errno(data->context)));
 510
 511         ppa_threaded_mainloop_unlock(data->loop);
 512         pulse_close(device);
 513         return ALC_FALSE;
 514     }
 515
 516     ppa_stream_set_state_callback(data->stream, stream_state_callback, data);
 517
 518     if(ppa_stream_connect_record(data->stream, NULL, &data->attr, PA_STREAM_ADJUST_LATENCY) < 0)
 519     {
 520         AL_PRINT("Stream did not connect: %s\n",
 521                  ppa_strerror(ppa_context_errno(data->context)));
 522
 523         ppa_stream_unref(data->stream);
 524         ppa_threaded_mainloop_unlock(data->loop);
 525
 526         data->stream = NULL;
 527         pulse_close(device);
 528         return ALC_FALSE;
 529     }
 530
 531     while(ppa_stream_get_state(data->stream) != PA_STREAM_READY)
 532     {
 533         if(!PA_STREAM_IS_GOOD(ppa_stream_get_state(data->stream)))
 534         {
 535             AL_PRINT("Stream did not get ready: %s\n",
 536                      ppa_strerror(ppa_context_errno(data->context)));
 537
 538             ppa_stream_unref(data->stream);
 539             ppa_threaded_mainloop_unlock(data->loop);
 540
 541             data->stream = NULL;
 542             pulse_close(device);
 543             return ALC_FALSE;
 544         }
 545
 546         ppa_threaded_mainloop_wait(data->loop);
 547         ppa_threaded_mainloop_accept(data->loop);
 548     }
 549
 550     ppa_threaded_mainloop_unlock(data->loop);
 551     return ALC_TRUE;
 552 } //}}}
 553
 554 static void pulse_close_capture(ALCdevice *device) //{{{
 555 {
 556     pulse_close(device);
 557 } //}}}
 558
 559 static void pulse_start_capture(ALCdevice *device) //{{{
 560 {
 561     pulse_data *data = device->ExtraData;
 562
 563     ppa_threaded_mainloop_lock(data->loop);
 564     ppa_stream_set_read_callback(data->stream, stream_read_callback, device);
 565     ppa_threaded_mainloop_unlock(data->loop);
 566 } //}}}
 567
 568 static void pulse_stop_capture(ALCdevice *device) //{{{
 569 {
 570     pulse_data *data = device->ExtraData;
 571
 572     ppa_threaded_mainloop_lock(data->loop);
 573     ppa_stream_set_read_callback(data->stream, NULL, NULL);
 574     ppa_threaded_mainloop_unlock(data->loop);
 575 } //}}}
 576
 577 static void pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
 578 {
 579     pulse_data *data = device->ExtraData;
 580     ALCuint available = RingBufferSize(data->ring);
 581
 582     if(available < samples)
 583         SetALCError(ALC_INVALID_VALUE);
 584     else
 585         ReadRingBuffer(data->ring, buffer, samples);
 586 } //}}}
 587
 588 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
 589 {
 590     pulse_data *data = device->ExtraData;
 591     return RingBufferSize(data->ring);
 592 } //}}}
 593
 594 BackendFuncs pulse_funcs = { //{{{
 595     pulse_open_playback,
 596     pulse_close_playback,
 597     pulse_start_context,
 598     pulse_stop_context,
 599     pulse_open_capture,
 600     pulse_close_capture,
 601     pulse_start_capture,
 602     pulse_stop_capture,
 603     pulse_capture_samples,
 604     pulse_available_samples
 605 }; //}}}
 606
 607 void alc_pulse_init(BackendFuncs *func_list) //{{{
 608 {
 609     *func_list = pulse_funcs;
 610
 611 #ifdef _WIN32
 612     pa_handle = LoadLibrary("libpulse-0.dll");
 613 #define LOAD_FUNC(x) do { \
 614     p##x = GetProcAddress(pa_handle, #x); \
 615     if(!(p##x)) { \
 616         AL_PRINT("Could not load %s from libpulse-0.dll\n", #x); \
 617         FreeLibrary(pa_handle); \
 618         pa_handle = NULL; \
 619         return; \
 620     } \
 621 } while(0)
 622
 623 #elif defined (HAVE_DLFCN_H)
 624
 625 #if defined(__APPLE__) && defined(__MACH__)
 626     pa_handle = dlopen("libpulse.0.dylib", RTLD_NOW);
 627 #else
 628     pa_handle = dlopen("libpulse.so.0", RTLD_NOW);
 629 #endif
 630 #define LOAD_FUNC(x) do { \
 631     p##x = dlsym(pa_handle, #x); \
 632     if(!(p##x)) { \
 633         AL_PRINT("Could not load %s from libpulse\n", #x); \
 634         dlclose(pa_handle); \
 635         pa_handle = NULL; \
 636         return; \
 637     } \
 638 } while(0)
 639
 640 #else
 641
 642     pa_handle = (void*)0xDEADBEEF;
 643 #define LOAD_FUNC(x) p##x = (x)
 644
 645 #endif
 646     if(!pa_handle)
 647         return;
 648
 649 LOAD_FUNC(pa_context_unref);
 650 LOAD_FUNC(pa_sample_spec_valid);
 651 LOAD_FUNC(pa_stream_drop);
 652 LOAD_FUNC(pa_strerror);
 653 LOAD_FUNC(pa_context_get_state);
 654 LOAD_FUNC(pa_stream_get_state);
 655 LOAD_FUNC(pa_threaded_mainloop_signal);
 656 LOAD_FUNC(pa_stream_peek);
 657 LOAD_FUNC(pa_threaded_mainloop_wait);
 658 LOAD_FUNC(pa_threaded_mainloop_unlock);
 659 LOAD_FUNC(pa_context_new);
 660 LOAD_FUNC(pa_threaded_mainloop_stop);
 661 LOAD_FUNC(pa_context_disconnect);
 662 LOAD_FUNC(pa_threaded_mainloop_start);
 663 LOAD_FUNC(pa_threaded_mainloop_get_api);
 664 LOAD_FUNC(pa_context_set_state_callback);
 665 LOAD_FUNC(pa_stream_write);
 666 LOAD_FUNC(pa_xfree);
 667 LOAD_FUNC(pa_stream_connect_record);
 668 LOAD_FUNC(pa_stream_connect_playback);
 669 LOAD_FUNC(pa_path_get_filename);
 670 LOAD_FUNC(pa_get_binary_name);
 671 LOAD_FUNC(pa_threaded_mainloop_free);
 672 LOAD_FUNC(pa_context_errno);
 673 LOAD_FUNC(pa_xmalloc0);
 674 LOAD_FUNC(pa_stream_unref);
 675 LOAD_FUNC(pa_threaded_mainloop_accept);
 676 LOAD_FUNC(pa_stream_set_write_callback);
 677 LOAD_FUNC(pa_threaded_mainloop_new);
 678 LOAD_FUNC(pa_context_connect);
 679 LOAD_FUNC(pa_stream_set_read_callback);
 680 LOAD_FUNC(pa_stream_set_state_callback);
 681 LOAD_FUNC(pa_stream_new);
 682 LOAD_FUNC(pa_stream_disconnect);
 683 LOAD_FUNC(pa_threaded_mainloop_lock);
 684
 685 #undef LOAD_FUNC
 686
 687     pulse_device = AppendDeviceList("PulseAudio Software");
 688     AppendAllDeviceList(pulse_device);
 689
 690     pulse_capture_device = AppendCaptureDeviceList("PulseAudio Capture");
 691 } //}}}
 692 //}}}