code.delx.au - pulseaudio/blob - src/utils/pacat.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as published
  11   by the Free Software Foundation; either version 2 of the License,
  12   or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <signal.h>
  30 #include <string.h>
  31 #include <errno.h>
  32 #include <unistd.h>
  33 #include <assert.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <getopt.h>
  37 #include <fcntl.h>
  38
  39 #include <pulse/pulseaudio.h>
  40
  41 #define TIME_EVENT_USEC 50000
  42
  43 #if PA_API_VERSION < 10
  44 #error Invalid PulseAudio API version
  45 #endif
  46
  47 static enum { RECORD, PLAYBACK } mode = PLAYBACK;
  48
  49 static pa_context *context = NULL;
  50 static pa_stream *stream = NULL;
  51 static pa_mainloop_api *mainloop_api = NULL;
  52
  53 static void *buffer = NULL;
  54 static size_t buffer_length = 0, buffer_index = 0;
  55
  56 static pa_io_event* stdio_event = NULL;
  57
  58 static char *stream_name = NULL, *client_name = NULL, *device = NULL;
  59
  60 static int verbose = 0;
  61 static pa_volume_t volume = PA_VOLUME_NORM;
  62
  63 static pa_sample_spec sample_spec = {
  64     .format = PA_SAMPLE_S16LE,
  65     .rate = 44100,
  66     .channels = 2
  67 };
  68
  69 static pa_channel_map channel_map;
  70 static int channel_map_set = 0;
  71
  72 static pa_stream_flags_t flags = 0;
  73
  74 static size_t latency = 0;
  75
  76 /* A shortcut for terminating the application */
  77 static void quit(int ret) {
  78     assert(mainloop_api);
  79     mainloop_api->quit(mainloop_api, ret);
  80 }
  81
  82 /* Write some data to the stream */
  83 static void do_stream_write(size_t length) {
  84     size_t l;
  85     assert(length);
  86
  87     if (!buffer || !buffer_length)
  88         return;
  89
  90     l = length;
  91     if (l > buffer_length)
  92         l = buffer_length;
  93
  94     if (pa_stream_write(stream, (uint8_t*) buffer + buffer_index, l, NULL, 0, PA_SEEK_RELATIVE) < 0) {
  95         fprintf(stderr, "pa_stream_write() failed: %s\n", pa_strerror(pa_context_errno(context)));
  96         quit(1);
  97         return;
  98     }
  99
 100     buffer_length -= l;
 101     buffer_index += l;
 102
 103     if (!buffer_length) {
 104         pa_xfree(buffer);
 105         buffer = NULL;
 106         buffer_index = buffer_length = 0;
 107     }
 108 }
 109
 110 /* This is called whenever new data may be written to the stream */
 111 static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
 112     assert(s);
 113     assert(length > 0);
 114
 115     if (stdio_event)
 116         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_INPUT);
 117
 118     if (!buffer)
 119         return;
 120
 121     do_stream_write(length);
 122 }
 123
 124 /* This is called whenever new data may is available */
 125 static void stream_read_callback(pa_stream *s, size_t length, void *userdata) {
 126     const void *data;
 127     assert(s);
 128     assert(length > 0);
 129
 130     if (stdio_event)
 131         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT);
 132
 133     if (pa_stream_peek(s, &data, &length) < 0) {
 134         fprintf(stderr, "pa_stream_peek() failed: %s\n", pa_strerror(pa_context_errno(context)));
 135         quit(1);
 136         return;
 137     }
 138
 139     assert(data);
 140     assert(length > 0);
 141
 142     if (buffer) {
 143         fprintf(stderr, "Buffer overrun, dropping incoming data\n");
 144         if (pa_stream_drop(s) < 0) {
 145             fprintf(stderr, "pa_stream_drop() failed: %s\n", pa_strerror(pa_context_errno(context)));
 146             quit(1);
 147         }
 148         return;
 149     }
 150
 151     buffer = pa_xmalloc(buffer_length = length);
 152     memcpy(buffer, data, length);
 153     buffer_index = 0;
 154     pa_stream_drop(s);
 155 }
 156
 157 /* This routine is called whenever the stream state changes */
 158 static void stream_state_callback(pa_stream *s, void *userdata) {
 159     assert(s);
 160
 161     switch (pa_stream_get_state(s)) {
 162         case PA_STREAM_CREATING:
 163         case PA_STREAM_TERMINATED:
 164             break;
 165
 166         case PA_STREAM_READY:
 167             if (verbose) {
 168                 const pa_buffer_attr *a;
 169                 char cmt[PA_CHANNEL_MAP_SNPRINT_MAX], sst[PA_SAMPLE_SPEC_SNPRINT_MAX];
 170
 171                 fprintf(stderr, "Stream successfully created.\n");
 172
 173                 if (!(a = pa_stream_get_buffer_attr(s)))
 174                     fprintf(stderr, "pa_stream_get_buffer_attr() failed: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 175                 else {
 176
 177                     if (mode == PLAYBACK)
 178                         fprintf(stderr, "Buffer metrics: maxlength=%u, tlength=%u, prebuf=%u, minreq=%u\n", a->maxlength, a->tlength, a->prebuf, a->minreq);
 179                     else {
 180                         assert(mode == RECORD);
 181                         fprintf(stderr, "Buffer metrics: maxlength=%u, fragsize=%u\n", a->maxlength, a->fragsize);
 182                     }
 183                 }
 184
 185                 fprintf(stderr, "Using sample spec '%s', channel map '%s'.\n",
 186                         pa_sample_spec_snprint(sst, sizeof(sst), pa_stream_get_sample_spec(s)),
 187                         pa_channel_map_snprint(cmt, sizeof(cmt), pa_stream_get_channel_map(s)));
 188
 189                 fprintf(stderr, "Connected to device %s (%u, %ssuspended).\n",
 190                         pa_stream_get_device_name(s),
 191                         pa_stream_get_device_index(s),
 192                         pa_stream_is_suspended(s) ? "" : "not ");
 193             }
 194
 195             break;
 196
 197         case PA_STREAM_FAILED:
 198         default:
 199             fprintf(stderr, "Stream error: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 200             quit(1);
 201     }
 202 }
 203
 204 static void stream_suspended_callback(pa_stream *s, void *userdata) {
 205     assert(s);
 206
 207     if (verbose) {
 208         if (pa_stream_is_suspended(s))
 209             fprintf(stderr, "Stream device suspended.\n");
 210         else
 211             fprintf(stderr, "Stream device resumed.\n");
 212     }
 213 }
 214
 215 static void stream_moved_callback(pa_stream *s, void *userdata) {
 216     assert(s);
 217
 218     if (verbose)
 219         fprintf(stderr, "Stream moved to device %s (%u, %ssuspended).\n", pa_stream_get_device_name(s), pa_stream_get_device_index(s), pa_stream_is_suspended(s) ? "" : "not ");
 220 }
 221
 222 /* This is called whenever the context status changes */
 223 static void context_state_callback(pa_context *c, void *userdata) {
 224     assert(c);
 225
 226     switch (pa_context_get_state(c)) {
 227         case PA_CONTEXT_CONNECTING:
 228         case PA_CONTEXT_AUTHORIZING:
 229         case PA_CONTEXT_SETTING_NAME:
 230             break;
 231
 232         case PA_CONTEXT_READY: {
 233             int r;
 234             pa_buffer_attr buffer_attr;
 235
 236             assert(c);
 237             assert(!stream);
 238
 239             if (verbose)
 240                 fprintf(stderr, "Connection established.\n");
 241
 242             if (!(stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL))) {
 243                 fprintf(stderr, "pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(c)));
 244                 goto fail;
 245             }
 246
 247             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 248             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 249             pa_stream_set_read_callback(stream, stream_read_callback, NULL);
 250             pa_stream_set_suspended_callback(stream, stream_suspended_callback, NULL);
 251             pa_stream_set_moved_callback(stream, stream_moved_callback, NULL);
 252
 253             if (latency > 0) {
 254                 memset(&buffer_attr, 0, sizeof(buffer_attr));
 255                 buffer_attr.tlength = latency;
 256                 flags |= PA_STREAM_ADJUST_LATENCY;
 257             }
 258
 259             if (mode == PLAYBACK) {
 260                 pa_cvolume cv;
 261                 if ((r = pa_stream_connect_playback(stream, device, latency > 0 ? &buffer_attr : NULL, flags, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL)) < 0) {
 262                     fprintf(stderr, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c)));
 263                     goto fail;
 264                 }
 265
 266             } else {
 267                 if ((r = pa_stream_connect_record(stream, device, latency > 0 ? &buffer_attr : NULL, flags)) < 0) {
 268                     fprintf(stderr, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c)));
 269                     goto fail;
 270                 }
 271             }
 272
 273             break;
 274         }
 275
 276         case PA_CONTEXT_TERMINATED:
 277             quit(0);
 278             break;
 279
 280         case PA_CONTEXT_FAILED:
 281         default:
 282             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 283             goto fail;
 284     }
 285
 286     return;
 287
 288 fail:
 289     quit(1);
 290
 291 }
 292
 293 /* Connection draining complete */
 294 static void context_drain_complete(pa_context*c, void *userdata) {
 295     pa_context_disconnect(c);
 296 }
 297
 298 /* Stream draining complete */
 299 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
 300     pa_operation *o;
 301
 302     if (!success) {
 303         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
 304         quit(1);
 305     }
 306
 307     if (verbose)
 308         fprintf(stderr, "Playback stream drained.\n");
 309
 310     pa_stream_disconnect(stream);
 311     pa_stream_unref(stream);
 312     stream = NULL;
 313
 314     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
 315         pa_context_disconnect(context);
 316     else {
 317         if (verbose)
 318             fprintf(stderr, "Draining connection to server.\n");
 319     }
 320 }
 321
 322 /* New data on STDIN **/
 323 static void stdin_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
 324     size_t l, w = 0;
 325     ssize_t r;
 326
 327     assert(a == mainloop_api);
 328     assert(e);
 329     assert(stdio_event == e);
 330
 331     if (buffer) {
 332         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
 333         return;
 334     }
 335
 336     if (!stream || pa_stream_get_state(stream) != PA_STREAM_READY || !(l = w = pa_stream_writable_size(stream)))
 337         l = 4096;
 338
 339     buffer = pa_xmalloc(l);
 340
 341     if ((r = read(fd, buffer, l)) <= 0) {
 342         if (r == 0) {
 343             if (verbose)
 344                 fprintf(stderr, "Got EOF.\n");
 345
 346             if (stream) {
 347                 pa_operation *o;
 348
 349                 if (!(o = pa_stream_drain(stream, stream_drain_complete, NULL))) {
 350                     fprintf(stderr, "pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(context)));
 351                     quit(1);
 352                     return;
 353                 }
 354
 355                 pa_operation_unref(o);
 356             } else
 357                 quit(0);
 358
 359         } else {
 360             fprintf(stderr, "read() failed: %s\n", strerror(errno));
 361             quit(1);
 362         }
 363
 364         mainloop_api->io_free(stdio_event);
 365         stdio_event = NULL;
 366         return;
 367     }
 368
 369     buffer_length = r;
 370     buffer_index = 0;
 371
 372     if (w)
 373         do_stream_write(w);
 374 }
 375
 376 /* Some data may be written to STDOUT */
 377 static void stdout_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
 378     ssize_t r;
 379
 380     assert(a == mainloop_api);
 381     assert(e);
 382     assert(stdio_event == e);
 383
 384     if (!buffer) {
 385         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
 386         return;
 387     }
 388
 389     assert(buffer_length);
 390
 391     if ((r = write(fd, (uint8_t*) buffer+buffer_index, buffer_length)) <= 0) {
 392         fprintf(stderr, "write() failed: %s\n", strerror(errno));
 393         quit(1);
 394
 395         mainloop_api->io_free(stdio_event);
 396         stdio_event = NULL;
 397         return;
 398     }
 399
 400     buffer_length -= r;
 401     buffer_index += r;
 402
 403     if (!buffer_length) {
 404         pa_xfree(buffer);
 405         buffer = NULL;
 406         buffer_length = buffer_index = 0;
 407     }
 408 }
 409
 410 /* UNIX signal to quit recieved */
 411 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 412     if (verbose)
 413         fprintf(stderr, "Got signal, exiting.\n");
 414     quit(0);
 415 }
 416
 417 /* Show the current latency */
 418 static void stream_update_timing_callback(pa_stream *s, int success, void *userdata) {
 419     pa_usec_t latency, usec;
 420     int negative = 0;
 421
 422     assert(s);
 423
 424     if (!success ||
 425         pa_stream_get_time(s, &usec) < 0 ||
 426         pa_stream_get_latency(s, &latency, &negative) < 0) {
 427         fprintf(stderr, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context)));
 428         quit(1);
 429         return;
 430     }
 431
 432     fprintf(stderr, "Time: %0.3f sec; Latency: %0.0f usec.  \r",
 433             (float) usec / 1000000,
 434             (float) latency * (negative?-1:1));
 435 }
 436
 437 /* Someone requested that the latency is shown */
 438 static void sigusr1_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 439
 440     if (!stream)
 441         return;
 442
 443     pa_operation_unref(pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL));
 444 }
 445
 446 static void time_event_callback(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
 447     struct timeval next;
 448
 449     if (stream && pa_stream_get_state(stream) == PA_STREAM_READY) {
 450         pa_operation *o;
 451         if (!(o = pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL)))
 452             fprintf(stderr, "pa_stream_update_timing_info() failed: %s\n", pa_strerror(pa_context_errno(context)));
 453         else
 454             pa_operation_unref(o);
 455     }
 456
 457     pa_gettimeofday(&next);
 458     pa_timeval_add(&next, TIME_EVENT_USEC);
 459
 460     m->time_restart(e, &next);
 461 }
 462
 463 static void help(const char *argv0) {
 464
 465     printf("%s [options]\n\n"
 466            "  -h, --help                            Show this help\n"
 467            "      --version                         Show version\n\n"
 468            "  -r, --record                          Create a connection for recording\n"
 469            "  -p, --playback                        Create a connection for playback\n\n"
 470            "  -v, --verbose                         Enable verbose operations\n\n"
 471            "  -s, --server=SERVER                   The name of the server to connect to\n"
 472            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
 473            "  -n, --client-name=NAME                How to call this client on the server\n"
 474            "      --stream-name=NAME                How to call this stream on the server\n"
 475            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 476            "      --rate=SAMPLERATE                 The sample rate in Hz (defaults to 44100)\n"
 477            "      --format=SAMPLEFORMAT             The sample type, one of s16le, s16be, u8, float32le,\n"
 478            "                                        float32be, ulaw, alaw (defaults to s16ne)\n"
 479            "      --channels=CHANNELS               The number of channels, 1 for mono, 2 for stereo\n"
 480            "                                        (defaults to 2)\n"
 481            "      --channel-map=CHANNELMAP          Channel map to use instead of the default\n"
 482            "      --fix-format                      Take the sample format from the sink the stream is\n"
 483            "                                        being connected to.\n"
 484            "      --fix-rate                        Take the sampling rate from the sink the stream is\n"
 485            "                                        being connected to.\n"
 486            "      --fix-channels                    Take the number of channels and the channel map\n"
 487            "                                        from the sink the stream is being connected to.\n"
 488            "      --no-remix                        Don't upmix or downmix channels.\n"
 489            "      --no-remap                        Map channels by index instead of name.\n"
 490            "      --latency=BYTES                   Request the specified latency in bytes.\n"
 491            ,
 492            argv0);
 493 }
 494
 495 enum {
 496     ARG_VERSION = 256,
 497     ARG_STREAM_NAME,
 498     ARG_VOLUME,
 499     ARG_SAMPLERATE,
 500     ARG_SAMPLEFORMAT,
 501     ARG_CHANNELS,
 502     ARG_CHANNELMAP,
 503     ARG_FIX_FORMAT,
 504     ARG_FIX_RATE,
 505     ARG_FIX_CHANNELS,
 506     ARG_NO_REMAP,
 507     ARG_NO_REMIX,
 508     ARG_LATENCY
 509 };
 510
 511 int main(int argc, char *argv[]) {
 512     pa_mainloop* m = NULL;
 513     int ret = 1, r, c;
 514     char *bn, *server = NULL;
 515     pa_time_event *time_event = NULL;
 516
 517     static const struct option long_options[] = {
 518         {"record",      0, NULL, 'r'},
 519         {"playback",    0, NULL, 'p'},
 520         {"device",      1, NULL, 'd'},
 521         {"server",      1, NULL, 's'},
 522         {"client-name", 1, NULL, 'n'},
 523         {"stream-name", 1, NULL, ARG_STREAM_NAME},
 524         {"version",     0, NULL, ARG_VERSION},
 525         {"help",        0, NULL, 'h'},
 526         {"verbose",     0, NULL, 'v'},
 527         {"volume",      1, NULL, ARG_VOLUME},
 528         {"rate",        1, NULL, ARG_SAMPLERATE},
 529         {"format",      1, NULL, ARG_SAMPLEFORMAT},
 530         {"channels",    1, NULL, ARG_CHANNELS},
 531         {"channel-map", 1, NULL, ARG_CHANNELMAP},
 532         {"fix-format",  0, NULL, ARG_FIX_FORMAT},
 533         {"fix-rate",    0, NULL, ARG_FIX_RATE},
 534         {"fix-channels",0, NULL, ARG_FIX_CHANNELS},
 535         {"no-remap",    0, NULL, ARG_NO_REMAP},
 536         {"no-remix",    0, NULL, ARG_NO_REMIX},
 537         {"latency",     0, NULL, ARG_LATENCY},
 538         {NULL,          0, NULL, 0}
 539     };
 540
 541     if (!(bn = strrchr(argv[0], '/')))
 542         bn = argv[0];
 543     else
 544         bn++;
 545
 546     if (strstr(bn, "rec") || strstr(bn, "mon"))
 547         mode = RECORD;
 548     else if (strstr(bn, "cat") || strstr(bn, "play"))
 549         mode = PLAYBACK;
 550
 551     while ((c = getopt_long(argc, argv, "rpd:s:n:hv", long_options, NULL)) != -1) {
 552
 553         switch (c) {
 554             case 'h' :
 555                 help(bn);
 556                 ret = 0;
 557                 goto quit;
 558
 559             case ARG_VERSION:
 560                 printf("pacat "PACKAGE_VERSION"\nCompiled with libpulse %s\nLinked with libpulse %s\n", pa_get_headers_version(), pa_get_library_version());
 561                 ret = 0;
 562                 goto quit;
 563
 564             case 'r':
 565                 mode = RECORD;
 566                 break;
 567
 568             case 'p':
 569                 mode = PLAYBACK;
 570                 break;
 571
 572             case 'd':
 573                 pa_xfree(device);
 574                 device = pa_xstrdup(optarg);
 575                 break;
 576
 577             case 's':
 578                 pa_xfree(server);
 579                 server = pa_xstrdup(optarg);
 580                 break;
 581
 582             case 'n':
 583                 pa_xfree(client_name);
 584                 client_name = pa_xstrdup(optarg);
 585                 break;
 586
 587             case ARG_STREAM_NAME:
 588                 pa_xfree(stream_name);
 589                 stream_name = pa_xstrdup(optarg);
 590                 break;
 591
 592             case 'v':
 593                 verbose = 1;
 594                 break;
 595
 596             case ARG_VOLUME: {
 597                 int v = atoi(optarg);
 598                 volume = v < 0 ? 0 : v;
 599                 break;
 600             }
 601
 602             case ARG_CHANNELS:
 603                 sample_spec.channels = atoi(optarg);
 604                 break;
 605
 606             case ARG_SAMPLEFORMAT:
 607                 sample_spec.format = pa_parse_sample_format(optarg);
 608                 break;
 609
 610             case ARG_SAMPLERATE:
 611                 sample_spec.rate = atoi(optarg);
 612                 break;
 613
 614             case ARG_CHANNELMAP:
 615                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 616                     fprintf(stderr, "Invalid channel map '%s'\n", optarg);
 617                     goto quit;
 618                 }
 619
 620                 channel_map_set = 1;
 621                 break;
 622
 623             case ARG_FIX_CHANNELS:
 624                 flags |= PA_STREAM_FIX_CHANNELS;
 625                 break;
 626
 627             case ARG_FIX_RATE:
 628                 flags |= PA_STREAM_FIX_RATE;
 629                 break;
 630
 631             case ARG_FIX_FORMAT:
 632                 flags |= PA_STREAM_FIX_FORMAT;
 633                 break;
 634
 635             case ARG_NO_REMIX:
 636                 flags |= PA_STREAM_NO_REMIX_CHANNELS;
 637                 break;
 638
 639             case ARG_NO_REMAP:
 640                 flags |= PA_STREAM_NO_REMAP_CHANNELS;
 641                 break;
 642
 643             case ARG_LATENCY:
 644                 if (((latency = atoi(optarg))) <= 0) {
 645                     fprintf(stderr, "Invallid latency specification '%s'\n", optarg);
 646                     goto quit;
 647                 }
 648                 break;
 649
 650             default:
 651                 goto quit;
 652         }
 653     }
 654
 655     if (!pa_sample_spec_valid(&sample_spec)) {
 656         fprintf(stderr, "Invalid sample specification\n");
 657         goto quit;
 658     }
 659
 660     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 661         fprintf(stderr, "Channel map doesn't match sample specification\n");
 662         goto quit;
 663     }
 664
 665     if (verbose) {
 666         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 667         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 668         fprintf(stderr, "Opening a %s stream with sample specification '%s'.\n", mode == RECORD ? "recording" : "playback", t);
 669     }
 670
 671     if (!(optind >= argc)) {
 672         if (optind+1 == argc) {
 673             int fd;
 674
 675             if ((fd = open(argv[optind], mode == PLAYBACK ? O_RDONLY : O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) {
 676                 fprintf(stderr, "open(): %s\n", strerror(errno));
 677                 goto quit;
 678             }
 679
 680             if (dup2(fd, mode == PLAYBACK ? 0 : 1) < 0) {
 681                 fprintf(stderr, "dup2(): %s\n", strerror(errno));
 682                 goto quit;
 683             }
 684
 685             close(fd);
 686
 687             if (!stream_name)
 688                 stream_name = pa_xstrdup(argv[optind]);
 689
 690         } else {
 691             fprintf(stderr, "Too many arguments.\n");
 692             goto quit;
 693         }
 694     }
 695
 696     if (!client_name)
 697         client_name = pa_xstrdup(bn);
 698
 699     if (!stream_name)
 700         stream_name = pa_xstrdup(client_name);
 701
 702     /* Set up a new main loop */
 703     if (!(m = pa_mainloop_new())) {
 704         fprintf(stderr, "pa_mainloop_new() failed.\n");
 705         goto quit;
 706     }
 707
 708     mainloop_api = pa_mainloop_get_api(m);
 709
 710     r = pa_signal_init(mainloop_api);
 711     assert(r == 0);
 712     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 713     pa_signal_new(SIGTERM, exit_signal_callback, NULL);
 714 #ifdef SIGUSR1
 715     pa_signal_new(SIGUSR1, sigusr1_signal_callback, NULL);
 716 #endif
 717 #ifdef SIGPIPE
 718     signal(SIGPIPE, SIG_IGN);
 719 #endif
 720
 721     if (!(stdio_event = mainloop_api->io_new(mainloop_api,
 722                                              mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO,
 723                                              mode == PLAYBACK ? PA_IO_EVENT_INPUT : PA_IO_EVENT_OUTPUT,
 724                                              mode == PLAYBACK ? stdin_callback : stdout_callback, NULL))) {
 725         fprintf(stderr, "io_new() failed.\n");
 726         goto quit;
 727     }
 728
 729     /* Create a new connection context */
 730     if (!(context = pa_context_new(mainloop_api, client_name))) {
 731         fprintf(stderr, "pa_context_new() failed.\n");
 732         goto quit;
 733     }
 734
 735     pa_context_set_state_callback(context, context_state_callback, NULL);
 736
 737     /* Connect the context */
 738     pa_context_connect(context, server, 0, NULL);
 739
 740     if (verbose) {
 741         struct timeval tv;
 742
 743         pa_gettimeofday(&tv);
 744         pa_timeval_add(&tv, TIME_EVENT_USEC);
 745
 746         if (!(time_event = mainloop_api->time_new(mainloop_api, &tv, time_event_callback, NULL))) {
 747             fprintf(stderr, "time_new() failed.\n");
 748             goto quit;
 749         }
 750     }
 751
 752     /* Run the main loop */
 753     if (pa_mainloop_run(m, &ret) < 0) {
 754         fprintf(stderr, "pa_mainloop_run() failed.\n");
 755         goto quit;
 756     }
 757
 758 quit:
 759     if (stream)
 760         pa_stream_unref(stream);
 761
 762     if (context)
 763         pa_context_unref(context);
 764
 765     if (stdio_event) {
 766         assert(mainloop_api);
 767         mainloop_api->io_free(stdio_event);
 768     }
 769
 770     if (time_event) {
 771         assert(mainloop_api);
 772         mainloop_api->time_free(time_event);
 773     }
 774
 775     if (m) {
 776         pa_signal_done();
 777         pa_mainloop_free(m);
 778     }
 779
 780     pa_xfree(buffer);
 781
 782     pa_xfree(server);
 783     pa_xfree(device);
 784     pa_xfree(client_name);
 785     pa_xfree(stream_name);
 786
 787     return ret;
 788 }