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_underflow_callback(pa_stream *s, void *userdata) {
 216     assert(s);
 217
 218     fprintf(stderr, "Underrun.\n");
 219 }
 220
 221 static void stream_overflow_callback(pa_stream *s, void *userdata) {
 222     assert(s);
 223
 224     fprintf(stderr, "Overrun.\n");
 225 }
 226
 227 static void stream_moved_callback(pa_stream *s, void *userdata) {
 228     assert(s);
 229
 230     if (verbose)
 231         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 ");
 232 }
 233
 234 /* This is called whenever the context status changes */
 235 static void context_state_callback(pa_context *c, void *userdata) {
 236     assert(c);
 237
 238     switch (pa_context_get_state(c)) {
 239         case PA_CONTEXT_CONNECTING:
 240         case PA_CONTEXT_AUTHORIZING:
 241         case PA_CONTEXT_SETTING_NAME:
 242             break;
 243
 244         case PA_CONTEXT_READY: {
 245             int r;
 246             pa_buffer_attr buffer_attr;
 247
 248             assert(c);
 249             assert(!stream);
 250
 251             if (verbose)
 252                 fprintf(stderr, "Connection established.\n");
 253
 254             if (!(stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL))) {
 255                 fprintf(stderr, "pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(c)));
 256                 goto fail;
 257             }
 258
 259             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 260             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 261             pa_stream_set_read_callback(stream, stream_read_callback, NULL);
 262             pa_stream_set_suspended_callback(stream, stream_suspended_callback, NULL);
 263             pa_stream_set_moved_callback(stream, stream_moved_callback, NULL);
 264             pa_stream_set_underflow_callback(stream, stream_underflow_callback, NULL);
 265             pa_stream_set_overflow_callback(stream, stream_overflow_callback, NULL);
 266
 267             if (latency > 0) {
 268                 memset(&buffer_attr, 0, sizeof(buffer_attr));
 269                 buffer_attr.tlength = latency;
 270                 flags |= PA_STREAM_ADJUST_LATENCY;
 271             }
 272
 273             if (mode == PLAYBACK) {
 274                 pa_cvolume cv;
 275                 if ((r = pa_stream_connect_playback(stream, device, latency > 0 ? &buffer_attr : NULL, flags, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL)) < 0) {
 276                     fprintf(stderr, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c)));
 277                     goto fail;
 278                 }
 279
 280             } else {
 281                 if ((r = pa_stream_connect_record(stream, device, latency > 0 ? &buffer_attr : NULL, flags)) < 0) {
 282                     fprintf(stderr, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c)));
 283                     goto fail;
 284                 }
 285             }
 286
 287             break;
 288         }
 289
 290         case PA_CONTEXT_TERMINATED:
 291             quit(0);
 292             break;
 293
 294         case PA_CONTEXT_FAILED:
 295         default:
 296             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 297             goto fail;
 298     }
 299
 300     return;
 301
 302 fail:
 303     quit(1);
 304
 305 }
 306
 307 /* Connection draining complete */
 308 static void context_drain_complete(pa_context*c, void *userdata) {
 309     pa_context_disconnect(c);
 310 }
 311
 312 /* Stream draining complete */
 313 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
 314     pa_operation *o;
 315
 316     if (!success) {
 317         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
 318         quit(1);
 319     }
 320
 321     if (verbose)
 322         fprintf(stderr, "Playback stream drained.\n");
 323
 324     pa_stream_disconnect(stream);
 325     pa_stream_unref(stream);
 326     stream = NULL;
 327
 328     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
 329         pa_context_disconnect(context);
 330     else {
 331         if (verbose)
 332             fprintf(stderr, "Draining connection to server.\n");
 333     }
 334 }
 335
 336 /* New data on STDIN **/
 337 static void stdin_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
 338     size_t l, w = 0;
 339     ssize_t r;
 340
 341     assert(a == mainloop_api);
 342     assert(e);
 343     assert(stdio_event == e);
 344
 345     if (buffer) {
 346         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
 347         return;
 348     }
 349
 350     if (!stream || pa_stream_get_state(stream) != PA_STREAM_READY || !(l = w = pa_stream_writable_size(stream)))
 351         l = 4096;
 352
 353     buffer = pa_xmalloc(l);
 354
 355     if ((r = read(fd, buffer, l)) <= 0) {
 356         if (r == 0) {
 357             if (verbose)
 358                 fprintf(stderr, "Got EOF.\n");
 359
 360             if (stream) {
 361                 pa_operation *o;
 362
 363                 if (!(o = pa_stream_drain(stream, stream_drain_complete, NULL))) {
 364                     fprintf(stderr, "pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(context)));
 365                     quit(1);
 366                     return;
 367                 }
 368
 369                 pa_operation_unref(o);
 370             } else
 371                 quit(0);
 372
 373         } else {
 374             fprintf(stderr, "read() failed: %s\n", strerror(errno));
 375             quit(1);
 376         }
 377
 378         mainloop_api->io_free(stdio_event);
 379         stdio_event = NULL;
 380         return;
 381     }
 382
 383     buffer_length = r;
 384     buffer_index = 0;
 385
 386     if (w)
 387         do_stream_write(w);
 388 }
 389
 390 /* Some data may be written to STDOUT */
 391 static void stdout_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
 392     ssize_t r;
 393
 394     assert(a == mainloop_api);
 395     assert(e);
 396     assert(stdio_event == e);
 397
 398     if (!buffer) {
 399         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
 400         return;
 401     }
 402
 403     assert(buffer_length);
 404
 405     if ((r = write(fd, (uint8_t*) buffer+buffer_index, buffer_length)) <= 0) {
 406         fprintf(stderr, "write() failed: %s\n", strerror(errno));
 407         quit(1);
 408
 409         mainloop_api->io_free(stdio_event);
 410         stdio_event = NULL;
 411         return;
 412     }
 413
 414     buffer_length -= r;
 415     buffer_index += r;
 416
 417     if (!buffer_length) {
 418         pa_xfree(buffer);
 419         buffer = NULL;
 420         buffer_length = buffer_index = 0;
 421     }
 422 }
 423
 424 /* UNIX signal to quit recieved */
 425 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 426     if (verbose)
 427         fprintf(stderr, "Got signal, exiting.\n");
 428     quit(0);
 429 }
 430
 431 /* Show the current latency */
 432 static void stream_update_timing_callback(pa_stream *s, int success, void *userdata) {
 433     pa_usec_t l, usec;
 434     int negative = 0;
 435
 436     assert(s);
 437
 438     if (!success ||
 439         pa_stream_get_time(s, &usec) < 0 ||
 440         pa_stream_get_latency(s, &l, &negative) < 0) {
 441         fprintf(stderr, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context)));
 442         quit(1);
 443         return;
 444     }
 445
 446     fprintf(stderr, "Time: %0.3f sec; Latency: %0.0f usec.  \r",
 447             (float) usec / 1000000,
 448             (float) l * (negative?-1:1));
 449 }
 450
 451 /* Someone requested that the latency is shown */
 452 static void sigusr1_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 453
 454     if (!stream)
 455         return;
 456
 457     pa_operation_unref(pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL));
 458 }
 459
 460 static void time_event_callback(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
 461     struct timeval next;
 462
 463     if (stream && pa_stream_get_state(stream) == PA_STREAM_READY) {
 464         pa_operation *o;
 465         if (!(o = pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL)))
 466             fprintf(stderr, "pa_stream_update_timing_info() failed: %s\n", pa_strerror(pa_context_errno(context)));
 467         else
 468             pa_operation_unref(o);
 469     }
 470
 471     pa_gettimeofday(&next);
 472     pa_timeval_add(&next, TIME_EVENT_USEC);
 473
 474     m->time_restart(e, &next);
 475 }
 476
 477 static void help(const char *argv0) {
 478
 479     printf("%s [options]\n\n"
 480            "  -h, --help                            Show this help\n"
 481            "      --version                         Show version\n\n"
 482            "  -r, --record                          Create a connection for recording\n"
 483            "  -p, --playback                        Create a connection for playback\n\n"
 484            "  -v, --verbose                         Enable verbose operations\n\n"
 485            "  -s, --server=SERVER                   The name of the server to connect to\n"
 486            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
 487            "  -n, --client-name=NAME                How to call this client on the server\n"
 488            "      --stream-name=NAME                How to call this stream on the server\n"
 489            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 490            "      --rate=SAMPLERATE                 The sample rate in Hz (defaults to 44100)\n"
 491            "      --format=SAMPLEFORMAT             The sample type, one of s16le, s16be, u8, float32le,\n"
 492            "                                        float32be, ulaw, alaw (defaults to s16ne)\n"
 493            "      --channels=CHANNELS               The number of channels, 1 for mono, 2 for stereo\n"
 494            "                                        (defaults to 2)\n"
 495            "      --channel-map=CHANNELMAP          Channel map to use instead of the default\n"
 496            "      --fix-format                      Take the sample format from the sink the stream is\n"
 497            "                                        being connected to.\n"
 498            "      --fix-rate                        Take the sampling rate from the sink the stream is\n"
 499            "                                        being connected to.\n"
 500            "      --fix-channels                    Take the number of channels and the channel map\n"
 501            "                                        from the sink the stream is being connected to.\n"
 502            "      --no-remix                        Don't upmix or downmix channels.\n"
 503            "      --no-remap                        Map channels by index instead of name.\n"
 504            "      --latency=BYTES                   Request the specified latency in bytes.\n"
 505            ,
 506            argv0);
 507 }
 508
 509 enum {
 510     ARG_VERSION = 256,
 511     ARG_STREAM_NAME,
 512     ARG_VOLUME,
 513     ARG_SAMPLERATE,
 514     ARG_SAMPLEFORMAT,
 515     ARG_CHANNELS,
 516     ARG_CHANNELMAP,
 517     ARG_FIX_FORMAT,
 518     ARG_FIX_RATE,
 519     ARG_FIX_CHANNELS,
 520     ARG_NO_REMAP,
 521     ARG_NO_REMIX,
 522     ARG_LATENCY
 523 };
 524
 525 int main(int argc, char *argv[]) {
 526     pa_mainloop* m = NULL;
 527     int ret = 1, r, c;
 528     char *bn, *server = NULL;
 529     pa_time_event *time_event = NULL;
 530
 531     static const struct option long_options[] = {
 532         {"record",      0, NULL, 'r'},
 533         {"playback",    0, NULL, 'p'},
 534         {"device",      1, NULL, 'd'},
 535         {"server",      1, NULL, 's'},
 536         {"client-name", 1, NULL, 'n'},
 537         {"stream-name", 1, NULL, ARG_STREAM_NAME},
 538         {"version",     0, NULL, ARG_VERSION},
 539         {"help",        0, NULL, 'h'},
 540         {"verbose",     0, NULL, 'v'},
 541         {"volume",      1, NULL, ARG_VOLUME},
 542         {"rate",        1, NULL, ARG_SAMPLERATE},
 543         {"format",      1, NULL, ARG_SAMPLEFORMAT},
 544         {"channels",    1, NULL, ARG_CHANNELS},
 545         {"channel-map", 1, NULL, ARG_CHANNELMAP},
 546         {"fix-format",  0, NULL, ARG_FIX_FORMAT},
 547         {"fix-rate",    0, NULL, ARG_FIX_RATE},
 548         {"fix-channels",0, NULL, ARG_FIX_CHANNELS},
 549         {"no-remap",    0, NULL, ARG_NO_REMAP},
 550         {"no-remix",    0, NULL, ARG_NO_REMIX},
 551         {"latency",     0, NULL, ARG_LATENCY},
 552         {NULL,          0, NULL, 0}
 553     };
 554
 555     if (!(bn = strrchr(argv[0], '/')))
 556         bn = argv[0];
 557     else
 558         bn++;
 559
 560     if (strstr(bn, "rec") || strstr(bn, "mon"))
 561         mode = RECORD;
 562     else if (strstr(bn, "cat") || strstr(bn, "play"))
 563         mode = PLAYBACK;
 564
 565     while ((c = getopt_long(argc, argv, "rpd:s:n:hv", long_options, NULL)) != -1) {
 566
 567         switch (c) {
 568             case 'h' :
 569                 help(bn);
 570                 ret = 0;
 571                 goto quit;
 572
 573             case ARG_VERSION:
 574                 printf("pacat "PACKAGE_VERSION"\nCompiled with libpulse %s\nLinked with libpulse %s\n", pa_get_headers_version(), pa_get_library_version());
 575                 ret = 0;
 576                 goto quit;
 577
 578             case 'r':
 579                 mode = RECORD;
 580                 break;
 581
 582             case 'p':
 583                 mode = PLAYBACK;
 584                 break;
 585
 586             case 'd':
 587                 pa_xfree(device);
 588                 device = pa_xstrdup(optarg);
 589                 break;
 590
 591             case 's':
 592                 pa_xfree(server);
 593                 server = pa_xstrdup(optarg);
 594                 break;
 595
 596             case 'n':
 597                 pa_xfree(client_name);
 598                 client_name = pa_xstrdup(optarg);
 599                 break;
 600
 601             case ARG_STREAM_NAME:
 602                 pa_xfree(stream_name);
 603                 stream_name = pa_xstrdup(optarg);
 604                 break;
 605
 606             case 'v':
 607                 verbose = 1;
 608                 break;
 609
 610             case ARG_VOLUME: {
 611                 int v = atoi(optarg);
 612                 volume = v < 0 ? 0 : v;
 613                 break;
 614             }
 615
 616             case ARG_CHANNELS:
 617                 sample_spec.channels = atoi(optarg);
 618                 break;
 619
 620             case ARG_SAMPLEFORMAT:
 621                 sample_spec.format = pa_parse_sample_format(optarg);
 622                 break;
 623
 624             case ARG_SAMPLERATE:
 625                 sample_spec.rate = atoi(optarg);
 626                 break;
 627
 628             case ARG_CHANNELMAP:
 629                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 630                     fprintf(stderr, "Invalid channel map '%s'\n", optarg);
 631                     goto quit;
 632                 }
 633
 634                 channel_map_set = 1;
 635                 break;
 636
 637             case ARG_FIX_CHANNELS:
 638                 flags |= PA_STREAM_FIX_CHANNELS;
 639                 break;
 640
 641             case ARG_FIX_RATE:
 642                 flags |= PA_STREAM_FIX_RATE;
 643                 break;
 644
 645             case ARG_FIX_FORMAT:
 646                 flags |= PA_STREAM_FIX_FORMAT;
 647                 break;
 648
 649             case ARG_NO_REMIX:
 650                 flags |= PA_STREAM_NO_REMIX_CHANNELS;
 651                 break;
 652
 653             case ARG_NO_REMAP:
 654                 flags |= PA_STREAM_NO_REMAP_CHANNELS;
 655                 break;
 656
 657             case ARG_LATENCY:
 658                 if (((latency = atoi(optarg))) <= 0) {
 659                     fprintf(stderr, "Invallid latency specification '%s'\n", optarg);
 660                     goto quit;
 661                 }
 662                 break;
 663
 664             default:
 665                 goto quit;
 666         }
 667     }
 668
 669     if (!pa_sample_spec_valid(&sample_spec)) {
 670         fprintf(stderr, "Invalid sample specification\n");
 671         goto quit;
 672     }
 673
 674     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 675         fprintf(stderr, "Channel map doesn't match sample specification\n");
 676         goto quit;
 677     }
 678
 679     if (verbose) {
 680         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 681         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 682         fprintf(stderr, "Opening a %s stream with sample specification '%s'.\n", mode == RECORD ? "recording" : "playback", t);
 683     }
 684
 685     if (!(optind >= argc)) {
 686         if (optind+1 == argc) {
 687             int fd;
 688
 689             if ((fd = open(argv[optind], mode == PLAYBACK ? O_RDONLY : O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) {
 690                 fprintf(stderr, "open(): %s\n", strerror(errno));
 691                 goto quit;
 692             }
 693
 694             if (dup2(fd, mode == PLAYBACK ? 0 : 1) < 0) {
 695                 fprintf(stderr, "dup2(): %s\n", strerror(errno));
 696                 goto quit;
 697             }
 698
 699             close(fd);
 700
 701             if (!stream_name)
 702                 stream_name = pa_xstrdup(argv[optind]);
 703
 704         } else {
 705             fprintf(stderr, "Too many arguments.\n");
 706             goto quit;
 707         }
 708     }
 709
 710     if (!client_name)
 711         client_name = pa_xstrdup(bn);
 712
 713     if (!stream_name)
 714         stream_name = pa_xstrdup(client_name);
 715
 716     /* Set up a new main loop */
 717     if (!(m = pa_mainloop_new())) {
 718         fprintf(stderr, "pa_mainloop_new() failed.\n");
 719         goto quit;
 720     }
 721
 722     mainloop_api = pa_mainloop_get_api(m);
 723
 724     r = pa_signal_init(mainloop_api);
 725     assert(r == 0);
 726     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 727     pa_signal_new(SIGTERM, exit_signal_callback, NULL);
 728 #ifdef SIGUSR1
 729     pa_signal_new(SIGUSR1, sigusr1_signal_callback, NULL);
 730 #endif
 731 #ifdef SIGPIPE
 732     signal(SIGPIPE, SIG_IGN);
 733 #endif
 734
 735     if (!(stdio_event = mainloop_api->io_new(mainloop_api,
 736                                              mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO,
 737                                              mode == PLAYBACK ? PA_IO_EVENT_INPUT : PA_IO_EVENT_OUTPUT,
 738                                              mode == PLAYBACK ? stdin_callback : stdout_callback, NULL))) {
 739         fprintf(stderr, "io_new() failed.\n");
 740         goto quit;
 741     }
 742
 743     /* Create a new connection context */
 744     if (!(context = pa_context_new(mainloop_api, client_name))) {
 745         fprintf(stderr, "pa_context_new() failed.\n");
 746         goto quit;
 747     }
 748
 749     pa_context_set_state_callback(context, context_state_callback, NULL);
 750
 751     /* Connect the context */
 752     pa_context_connect(context, server, 0, NULL);
 753
 754     if (verbose) {
 755         struct timeval tv;
 756
 757         pa_gettimeofday(&tv);
 758         pa_timeval_add(&tv, TIME_EVENT_USEC);
 759
 760         if (!(time_event = mainloop_api->time_new(mainloop_api, &tv, time_event_callback, NULL))) {
 761             fprintf(stderr, "time_new() failed.\n");
 762             goto quit;
 763         }
 764     }
 765
 766     /* Run the main loop */
 767     if (pa_mainloop_run(m, &ret) < 0) {
 768         fprintf(stderr, "pa_mainloop_run() failed.\n");
 769         goto quit;
 770     }
 771
 772 quit:
 773     if (stream)
 774         pa_stream_unref(stream);
 775
 776     if (context)
 777         pa_context_unref(context);
 778
 779     if (stdio_event) {
 780         assert(mainloop_api);
 781         mainloop_api->io_free(stdio_event);
 782     }
 783
 784     if (time_event) {
 785         assert(mainloop_api);
 786         mainloop_api->time_free(time_event);
 787     }
 788
 789     if (m) {
 790         pa_signal_done();
 791         pa_mainloop_free(m);
 792     }
 793
 794     pa_xfree(buffer);
 795
 796     pa_xfree(server);
 797     pa_xfree(device);
 798     pa_xfree(client_name);
 799     pa_xfree(stream_name);
 800
 801     return ret;
 802 }