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, process_time=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                 buffer_attr.minreq = process_time;
 271                 flags |= PA_STREAM_ADJUST_LATENCY;
 272             }
 273
 274             if (mode == PLAYBACK) {
 275                 pa_cvolume cv;
 276                 if ((r = pa_stream_connect_playback(stream, device, latency > 0 ? &buffer_attr : NULL, flags, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL)) < 0) {
 277                     fprintf(stderr, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c)));
 278                     goto fail;
 279                 }
 280
 281             } else {
 282                 if ((r = pa_stream_connect_record(stream, device, latency > 0 ? &buffer_attr : NULL, flags)) < 0) {
 283                     fprintf(stderr, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c)));
 284                     goto fail;
 285                 }
 286             }
 287
 288             break;
 289         }
 290
 291         case PA_CONTEXT_TERMINATED:
 292             quit(0);
 293             break;
 294
 295         case PA_CONTEXT_FAILED:
 296         default:
 297             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 298             goto fail;
 299     }
 300
 301     return;
 302
 303 fail:
 304     quit(1);
 305
 306 }
 307
 308 /* Connection draining complete */
 309 static void context_drain_complete(pa_context*c, void *userdata) {
 310     pa_context_disconnect(c);
 311 }
 312
 313 /* Stream draining complete */
 314 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
 315     pa_operation *o;
 316
 317     if (!success) {
 318         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
 319         quit(1);
 320     }
 321
 322     if (verbose)
 323         fprintf(stderr, "Playback stream drained.\n");
 324
 325     pa_stream_disconnect(stream);
 326     pa_stream_unref(stream);
 327     stream = NULL;
 328
 329     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
 330         pa_context_disconnect(context);
 331     else {
 332         if (verbose)
 333             fprintf(stderr, "Draining connection to server.\n");
 334     }
 335 }
 336
 337 /* New data on STDIN **/
 338 static void stdin_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
 339     size_t l, w = 0;
 340     ssize_t r;
 341
 342     assert(a == mainloop_api);
 343     assert(e);
 344     assert(stdio_event == e);
 345
 346     if (buffer) {
 347         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
 348         return;
 349     }
 350
 351     if (!stream || pa_stream_get_state(stream) != PA_STREAM_READY || !(l = w = pa_stream_writable_size(stream)))
 352         l = 4096;
 353
 354     buffer = pa_xmalloc(l);
 355
 356     if ((r = read(fd, buffer, l)) <= 0) {
 357         if (r == 0) {
 358             if (verbose)
 359                 fprintf(stderr, "Got EOF.\n");
 360
 361             if (stream) {
 362                 pa_operation *o;
 363
 364                 if (!(o = pa_stream_drain(stream, stream_drain_complete, NULL))) {
 365                     fprintf(stderr, "pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(context)));
 366                     quit(1);
 367                     return;
 368                 }
 369
 370                 pa_operation_unref(o);
 371             } else
 372                 quit(0);
 373
 374         } else {
 375             fprintf(stderr, "read() failed: %s\n", strerror(errno));
 376             quit(1);
 377         }
 378
 379         mainloop_api->io_free(stdio_event);
 380         stdio_event = NULL;
 381         return;
 382     }
 383
 384     buffer_length = r;
 385     buffer_index = 0;
 386
 387     if (w)
 388         do_stream_write(w);
 389 }
 390
 391 /* Some data may be written to STDOUT */
 392 static void stdout_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
 393     ssize_t r;
 394
 395     assert(a == mainloop_api);
 396     assert(e);
 397     assert(stdio_event == e);
 398
 399     if (!buffer) {
 400         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
 401         return;
 402     }
 403
 404     assert(buffer_length);
 405
 406     if ((r = write(fd, (uint8_t*) buffer+buffer_index, buffer_length)) <= 0) {
 407         fprintf(stderr, "write() failed: %s\n", strerror(errno));
 408         quit(1);
 409
 410         mainloop_api->io_free(stdio_event);
 411         stdio_event = NULL;
 412         return;
 413     }
 414
 415     buffer_length -= r;
 416     buffer_index += r;
 417
 418     if (!buffer_length) {
 419         pa_xfree(buffer);
 420         buffer = NULL;
 421         buffer_length = buffer_index = 0;
 422     }
 423 }
 424
 425 /* UNIX signal to quit recieved */
 426 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 427     if (verbose)
 428         fprintf(stderr, "Got signal, exiting.\n");
 429     quit(0);
 430 }
 431
 432 /* Show the current latency */
 433 static void stream_update_timing_callback(pa_stream *s, int success, void *userdata) {
 434     pa_usec_t l, usec;
 435     int negative = 0;
 436
 437     assert(s);
 438
 439     if (!success ||
 440         pa_stream_get_time(s, &usec) < 0 ||
 441         pa_stream_get_latency(s, &l, &negative) < 0) {
 442         fprintf(stderr, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context)));
 443         quit(1);
 444         return;
 445     }
 446
 447     fprintf(stderr, "Time: %0.3f sec; Latency: %0.0f usec.  \r",
 448             (float) usec / 1000000,
 449             (float) l * (negative?-1:1));
 450 }
 451
 452 /* Someone requested that the latency is shown */
 453 static void sigusr1_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 454
 455     if (!stream)
 456         return;
 457
 458     pa_operation_unref(pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL));
 459 }
 460
 461 static void time_event_callback(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
 462     struct timeval next;
 463
 464     if (stream && pa_stream_get_state(stream) == PA_STREAM_READY) {
 465         pa_operation *o;
 466         if (!(o = pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL)))
 467             fprintf(stderr, "pa_stream_update_timing_info() failed: %s\n", pa_strerror(pa_context_errno(context)));
 468         else
 469             pa_operation_unref(o);
 470     }
 471
 472     pa_gettimeofday(&next);
 473     pa_timeval_add(&next, TIME_EVENT_USEC);
 474
 475     m->time_restart(e, &next);
 476 }
 477
 478 static void help(const char *argv0) {
 479
 480     printf("%s [options]\n\n"
 481            "  -h, --help                            Show this help\n"
 482            "      --version                         Show version\n\n"
 483            "  -r, --record                          Create a connection for recording\n"
 484            "  -p, --playback                        Create a connection for playback\n\n"
 485            "  -v, --verbose                         Enable verbose operations\n\n"
 486            "  -s, --server=SERVER                   The name of the server to connect to\n"
 487            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
 488            "  -n, --client-name=NAME                How to call this client on the server\n"
 489            "      --stream-name=NAME                How to call this stream on the server\n"
 490            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 491            "      --rate=SAMPLERATE                 The sample rate in Hz (defaults to 44100)\n"
 492            "      --format=SAMPLEFORMAT             The sample type, one of s16le, s16be, u8, float32le,\n"
 493            "                                        float32be, ulaw, alaw (defaults to s16ne)\n"
 494            "      --channels=CHANNELS               The number of channels, 1 for mono, 2 for stereo\n"
 495            "                                        (defaults to 2)\n"
 496            "      --channel-map=CHANNELMAP          Channel map to use instead of the default\n"
 497            "      --fix-format                      Take the sample format from the sink the stream is\n"
 498            "                                        being connected to.\n"
 499            "      --fix-rate                        Take the sampling rate from the sink the stream is\n"
 500            "                                        being connected to.\n"
 501            "      --fix-channels                    Take the number of channels and the channel map\n"
 502            "                                        from the sink the stream is being connected to.\n"
 503            "      --no-remix                        Don't upmix or downmix channels.\n"
 504            "      --no-remap                        Map channels by index instead of name.\n"
 505            "      --latency=BYTES                   Request the specified latency in bytes.\n"
 506            "      --process-time=BYTES              Request the specified process time per request in bytes.\n"
 507            ,
 508            argv0);
 509 }
 510
 511 enum {
 512     ARG_VERSION = 256,
 513     ARG_STREAM_NAME,
 514     ARG_VOLUME,
 515     ARG_SAMPLERATE,
 516     ARG_SAMPLEFORMAT,
 517     ARG_CHANNELS,
 518     ARG_CHANNELMAP,
 519     ARG_FIX_FORMAT,
 520     ARG_FIX_RATE,
 521     ARG_FIX_CHANNELS,
 522     ARG_NO_REMAP,
 523     ARG_NO_REMIX,
 524     ARG_LATENCY,
 525     ARG_PROCESS_TIME
 526 };
 527
 528 int main(int argc, char *argv[]) {
 529     pa_mainloop* m = NULL;
 530     int ret = 1, r, c;
 531     char *bn, *server = NULL;
 532     pa_time_event *time_event = NULL;
 533
 534     static const struct option long_options[] = {
 535         {"record",       0, NULL, 'r'},
 536         {"playback",     0, NULL, 'p'},
 537         {"device",       1, NULL, 'd'},
 538         {"server",       1, NULL, 's'},
 539         {"client-name",  1, NULL, 'n'},
 540         {"stream-name",  1, NULL, ARG_STREAM_NAME},
 541         {"version",      0, NULL, ARG_VERSION},
 542         {"help",         0, NULL, 'h'},
 543         {"verbose",      0, NULL, 'v'},
 544         {"volume",       1, NULL, ARG_VOLUME},
 545         {"rate",         1, NULL, ARG_SAMPLERATE},
 546         {"format",       1, NULL, ARG_SAMPLEFORMAT},
 547         {"channels",     1, NULL, ARG_CHANNELS},
 548         {"channel-map",  1, NULL, ARG_CHANNELMAP},
 549         {"fix-format",   0, NULL, ARG_FIX_FORMAT},
 550         {"fix-rate",     0, NULL, ARG_FIX_RATE},
 551         {"fix-channels", 0, NULL, ARG_FIX_CHANNELS},
 552         {"no-remap",     0, NULL, ARG_NO_REMAP},
 553         {"no-remix",     0, NULL, ARG_NO_REMIX},
 554         {"latency",      1, NULL, ARG_LATENCY},
 555         {"process-time", 1, NULL, ARG_PROCESS_TIME},
 556         {NULL,           0, NULL, 0}
 557     };
 558
 559     if (!(bn = strrchr(argv[0], '/')))
 560         bn = argv[0];
 561     else
 562         bn++;
 563
 564     if (strstr(bn, "rec") || strstr(bn, "mon"))
 565         mode = RECORD;
 566     else if (strstr(bn, "cat") || strstr(bn, "play"))
 567         mode = PLAYBACK;
 568
 569     while ((c = getopt_long(argc, argv, "rpd:s:n:hv", long_options, NULL)) != -1) {
 570
 571         switch (c) {
 572             case 'h' :
 573                 help(bn);
 574                 ret = 0;
 575                 goto quit;
 576
 577             case ARG_VERSION:
 578                 printf("pacat "PACKAGE_VERSION"\nCompiled with libpulse %s\nLinked with libpulse %s\n", pa_get_headers_version(), pa_get_library_version());
 579                 ret = 0;
 580                 goto quit;
 581
 582             case 'r':
 583                 mode = RECORD;
 584                 break;
 585
 586             case 'p':
 587                 mode = PLAYBACK;
 588                 break;
 589
 590             case 'd':
 591                 pa_xfree(device);
 592                 device = pa_xstrdup(optarg);
 593                 break;
 594
 595             case 's':
 596                 pa_xfree(server);
 597                 server = pa_xstrdup(optarg);
 598                 break;
 599
 600             case 'n':
 601                 pa_xfree(client_name);
 602                 client_name = pa_xstrdup(optarg);
 603                 break;
 604
 605             case ARG_STREAM_NAME:
 606                 pa_xfree(stream_name);
 607                 stream_name = pa_xstrdup(optarg);
 608                 break;
 609
 610             case 'v':
 611                 verbose = 1;
 612                 break;
 613
 614             case ARG_VOLUME: {
 615                 int v = atoi(optarg);
 616                 volume = v < 0 ? 0 : v;
 617                 break;
 618             }
 619
 620             case ARG_CHANNELS:
 621                 sample_spec.channels = atoi(optarg);
 622                 break;
 623
 624             case ARG_SAMPLEFORMAT:
 625                 sample_spec.format = pa_parse_sample_format(optarg);
 626                 break;
 627
 628             case ARG_SAMPLERATE:
 629                 sample_spec.rate = atoi(optarg);
 630                 break;
 631
 632             case ARG_CHANNELMAP:
 633                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 634                     fprintf(stderr, "Invalid channel map '%s'\n", optarg);
 635                     goto quit;
 636                 }
 637
 638                 channel_map_set = 1;
 639                 break;
 640
 641             case ARG_FIX_CHANNELS:
 642                 flags |= PA_STREAM_FIX_CHANNELS;
 643                 break;
 644
 645             case ARG_FIX_RATE:
 646                 flags |= PA_STREAM_FIX_RATE;
 647                 break;
 648
 649             case ARG_FIX_FORMAT:
 650                 flags |= PA_STREAM_FIX_FORMAT;
 651                 break;
 652
 653             case ARG_NO_REMIX:
 654                 flags |= PA_STREAM_NO_REMIX_CHANNELS;
 655                 break;
 656
 657             case ARG_NO_REMAP:
 658                 flags |= PA_STREAM_NO_REMAP_CHANNELS;
 659                 break;
 660
 661             case ARG_LATENCY:
 662                 if (((latency = atoi(optarg))) <= 0) {
 663                     fprintf(stderr, "Invalid latency specification '%s'\n", optarg);
 664                     goto quit;
 665                 }
 666                 break;
 667
 668             case ARG_PROCESS_TIME:
 669                 if (((process_time = atoi(optarg))) <= 0) {
 670                     fprintf(stderr, "Invalid process time specification '%s'\n", optarg);
 671                     goto quit;
 672                 }
 673                 break;
 674
 675             default:
 676                 goto quit;
 677         }
 678     }
 679
 680     if (!pa_sample_spec_valid(&sample_spec)) {
 681         fprintf(stderr, "Invalid sample specification\n");
 682         goto quit;
 683     }
 684
 685     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 686         fprintf(stderr, "Channel map doesn't match sample specification\n");
 687         goto quit;
 688     }
 689
 690     if (verbose) {
 691         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 692         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 693         fprintf(stderr, "Opening a %s stream with sample specification '%s'.\n", mode == RECORD ? "recording" : "playback", t);
 694     }
 695
 696     if (!(optind >= argc)) {
 697         if (optind+1 == argc) {
 698             int fd;
 699
 700             if ((fd = open(argv[optind], mode == PLAYBACK ? O_RDONLY : O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) {
 701                 fprintf(stderr, "open(): %s\n", strerror(errno));
 702                 goto quit;
 703             }
 704
 705             if (dup2(fd, mode == PLAYBACK ? 0 : 1) < 0) {
 706                 fprintf(stderr, "dup2(): %s\n", strerror(errno));
 707                 goto quit;
 708             }
 709
 710             close(fd);
 711
 712             if (!stream_name)
 713                 stream_name = pa_xstrdup(argv[optind]);
 714
 715         } else {
 716             fprintf(stderr, "Too many arguments.\n");
 717             goto quit;
 718         }
 719     }
 720
 721     if (!client_name)
 722         client_name = pa_xstrdup(bn);
 723
 724     if (!stream_name)
 725         stream_name = pa_xstrdup(client_name);
 726
 727     /* Set up a new main loop */
 728     if (!(m = pa_mainloop_new())) {
 729         fprintf(stderr, "pa_mainloop_new() failed.\n");
 730         goto quit;
 731     }
 732
 733     mainloop_api = pa_mainloop_get_api(m);
 734
 735     r = pa_signal_init(mainloop_api);
 736     assert(r == 0);
 737     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 738     pa_signal_new(SIGTERM, exit_signal_callback, NULL);
 739 #ifdef SIGUSR1
 740     pa_signal_new(SIGUSR1, sigusr1_signal_callback, NULL);
 741 #endif
 742 #ifdef SIGPIPE
 743     signal(SIGPIPE, SIG_IGN);
 744 #endif
 745
 746     if (!(stdio_event = mainloop_api->io_new(mainloop_api,
 747                                              mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO,
 748                                              mode == PLAYBACK ? PA_IO_EVENT_INPUT : PA_IO_EVENT_OUTPUT,
 749                                              mode == PLAYBACK ? stdin_callback : stdout_callback, NULL))) {
 750         fprintf(stderr, "io_new() failed.\n");
 751         goto quit;
 752     }
 753
 754     /* Create a new connection context */
 755     if (!(context = pa_context_new(mainloop_api, client_name))) {
 756         fprintf(stderr, "pa_context_new() failed.\n");
 757         goto quit;
 758     }
 759
 760     pa_context_set_state_callback(context, context_state_callback, NULL);
 761
 762     /* Connect the context */
 763     pa_context_connect(context, server, 0, NULL);
 764
 765     if (verbose) {
 766         struct timeval tv;
 767
 768         pa_gettimeofday(&tv);
 769         pa_timeval_add(&tv, TIME_EVENT_USEC);
 770
 771         if (!(time_event = mainloop_api->time_new(mainloop_api, &tv, time_event_callback, NULL))) {
 772             fprintf(stderr, "time_new() failed.\n");
 773             goto quit;
 774         }
 775     }
 776
 777     /* Run the main loop */
 778     if (pa_mainloop_run(m, &ret) < 0) {
 779         fprintf(stderr, "pa_mainloop_run() failed.\n");
 780         goto quit;
 781     }
 782
 783 quit:
 784     if (stream)
 785         pa_stream_unref(stream);
 786
 787     if (context)
 788         pa_context_unref(context);
 789
 790     if (stdio_event) {
 791         assert(mainloop_api);
 792         mainloop_api->io_free(stdio_event);
 793     }
 794
 795     if (time_event) {
 796         assert(mainloop_api);
 797         mainloop_api->time_free(time_event);
 798     }
 799
 800     if (m) {
 801         pa_signal_done();
 802         pa_mainloop_free(m);
 803     }
 804
 805     pa_xfree(buffer);
 806
 807     pa_xfree(server);
 808     pa_xfree(device);
 809     pa_xfree(client_name);
 810     pa_xfree(stream_name);
 811
 812     return ret;
 813 }