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

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   5   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <signal.h>
  28 #include <string.h>
  29 #include <errno.h>
  30 #include <unistd.h>
  31 #include <assert.h>
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <getopt.h>
  35 #include <fcntl.h>
  36
  37 #include <pulse/pulseaudio.h>
  38
  39 #define TIME_EVENT_USEC 50000
  40
  41 #if PA_API_VERSION < 10
  42 #error Invalid PulseAudio API version
  43 #endif
  44
  45 #define CLEAR_LINE "\x1B[K"
  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." CLEAR_LINE " \n");
 210         else
 211             fprintf(stderr, "Stream device resumed." CLEAR_LINE " \n");
 212     }
 213 }
 214
 215 static void stream_underflow_callback(pa_stream *s, void *userdata) {
 216     assert(s);
 217
 218     if (verbose)
 219         fprintf(stderr, "Stream underrun." CLEAR_LINE " \n");
 220 }
 221
 222 static void stream_overflow_callback(pa_stream *s, void *userdata) {
 223     assert(s);
 224
 225     if (verbose)
 226         fprintf(stderr, "Stream overrun." CLEAR_LINE " \n");
 227 }
 228
 229 static void stream_started_callback(pa_stream *s, void *userdata) {
 230     assert(s);
 231
 232     if (verbose)
 233         fprintf(stderr, "Stream started." CLEAR_LINE " \n");
 234 }
 235
 236 static void stream_moved_callback(pa_stream *s, void *userdata) {
 237     assert(s);
 238
 239     if (verbose)
 240         fprintf(stderr, "Stream moved to device %s (%u, %ssuspended)." CLEAR_LINE " \n", pa_stream_get_device_name(s), pa_stream_get_device_index(s), pa_stream_is_suspended(s) ? "" : "not ");
 241 }
 242
 243 /* This is called whenever the context status changes */
 244 static void context_state_callback(pa_context *c, void *userdata) {
 245     assert(c);
 246
 247     switch (pa_context_get_state(c)) {
 248         case PA_CONTEXT_CONNECTING:
 249         case PA_CONTEXT_AUTHORIZING:
 250         case PA_CONTEXT_SETTING_NAME:
 251             break;
 252
 253         case PA_CONTEXT_READY: {
 254             int r;
 255             pa_buffer_attr buffer_attr;
 256
 257             assert(c);
 258             assert(!stream);
 259
 260             if (verbose)
 261                 fprintf(stderr, "Connection established." CLEAR_LINE " \n");
 262
 263             if (!(stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL))) {
 264                 fprintf(stderr, "pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(c)));
 265                 goto fail;
 266             }
 267
 268             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 269             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 270             pa_stream_set_read_callback(stream, stream_read_callback, NULL);
 271             pa_stream_set_suspended_callback(stream, stream_suspended_callback, NULL);
 272             pa_stream_set_moved_callback(stream, stream_moved_callback, NULL);
 273             pa_stream_set_underflow_callback(stream, stream_underflow_callback, NULL);
 274             pa_stream_set_overflow_callback(stream, stream_overflow_callback, NULL);
 275             pa_stream_set_started_callback(stream, stream_started_callback, NULL);
 276
 277             if (latency > 0) {
 278                 memset(&buffer_attr, 0, sizeof(buffer_attr));
 279                 buffer_attr.tlength = latency;
 280                 buffer_attr.minreq = process_time;
 281                 flags |= PA_STREAM_ADJUST_LATENCY;
 282             }
 283
 284             if (mode == PLAYBACK) {
 285                 pa_cvolume cv;
 286                 if ((r = pa_stream_connect_playback(stream, device, latency > 0 ? &buffer_attr : NULL, flags, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL)) < 0) {
 287                     fprintf(stderr, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c)));
 288                     goto fail;
 289                 }
 290
 291             } else {
 292                 if ((r = pa_stream_connect_record(stream, device, latency > 0 ? &buffer_attr : NULL, flags)) < 0) {
 293                     fprintf(stderr, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c)));
 294                     goto fail;
 295                 }
 296             }
 297
 298             break;
 299         }
 300
 301         case PA_CONTEXT_TERMINATED:
 302             quit(0);
 303             break;
 304
 305         case PA_CONTEXT_FAILED:
 306         default:
 307             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 308             goto fail;
 309     }
 310
 311     return;
 312
 313 fail:
 314     quit(1);
 315
 316 }
 317
 318 /* Connection draining complete */
 319 static void context_drain_complete(pa_context*c, void *userdata) {
 320     pa_context_disconnect(c);
 321 }
 322
 323 /* Stream draining complete */
 324 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
 325     pa_operation *o;
 326
 327     if (!success) {
 328         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
 329         quit(1);
 330     }
 331
 332     if (verbose)
 333         fprintf(stderr, "Playback stream drained.\n");
 334
 335     pa_stream_disconnect(stream);
 336     pa_stream_unref(stream);
 337     stream = NULL;
 338
 339     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
 340         pa_context_disconnect(context);
 341     else {
 342         if (verbose)
 343             fprintf(stderr, "Draining connection to server.\n");
 344     }
 345 }
 346
 347 /* New data on STDIN **/
 348 static void stdin_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
 349     size_t l, w = 0;
 350     ssize_t r;
 351
 352     assert(a == mainloop_api);
 353     assert(e);
 354     assert(stdio_event == e);
 355
 356     if (buffer) {
 357         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
 358         return;
 359     }
 360
 361     if (!stream || pa_stream_get_state(stream) != PA_STREAM_READY || !(l = w = pa_stream_writable_size(stream)))
 362         l = 4096;
 363
 364     buffer = pa_xmalloc(l);
 365
 366     if ((r = read(fd, buffer, l)) <= 0) {
 367         if (r == 0) {
 368             if (verbose)
 369                 fprintf(stderr, "Got EOF.\n");
 370
 371             if (stream) {
 372                 pa_operation *o;
 373
 374                 if (!(o = pa_stream_drain(stream, stream_drain_complete, NULL))) {
 375                     fprintf(stderr, "pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(context)));
 376                     quit(1);
 377                     return;
 378                 }
 379
 380                 pa_operation_unref(o);
 381             } else
 382                 quit(0);
 383
 384         } else {
 385             fprintf(stderr, "read() failed: %s\n", strerror(errno));
 386             quit(1);
 387         }
 388
 389         mainloop_api->io_free(stdio_event);
 390         stdio_event = NULL;
 391         return;
 392     }
 393
 394     buffer_length = r;
 395     buffer_index = 0;
 396
 397     if (w)
 398         do_stream_write(w);
 399 }
 400
 401 /* Some data may be written to STDOUT */
 402 static void stdout_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
 403     ssize_t r;
 404
 405     assert(a == mainloop_api);
 406     assert(e);
 407     assert(stdio_event == e);
 408
 409     if (!buffer) {
 410         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
 411         return;
 412     }
 413
 414     assert(buffer_length);
 415
 416     if ((r = write(fd, (uint8_t*) buffer+buffer_index, buffer_length)) <= 0) {
 417         fprintf(stderr, "write() failed: %s\n", strerror(errno));
 418         quit(1);
 419
 420         mainloop_api->io_free(stdio_event);
 421         stdio_event = NULL;
 422         return;
 423     }
 424
 425     buffer_length -= r;
 426     buffer_index += r;
 427
 428     if (!buffer_length) {
 429         pa_xfree(buffer);
 430         buffer = NULL;
 431         buffer_length = buffer_index = 0;
 432     }
 433 }
 434
 435 /* UNIX signal to quit recieved */
 436 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 437     if (verbose)
 438         fprintf(stderr, "Got signal, exiting.\n");
 439     quit(0);
 440 }
 441
 442 /* Show the current latency */
 443 static void stream_update_timing_callback(pa_stream *s, int success, void *userdata) {
 444     pa_usec_t l, usec;
 445     int negative = 0;
 446
 447     assert(s);
 448
 449     if (!success ||
 450         pa_stream_get_time(s, &usec) < 0 ||
 451         pa_stream_get_latency(s, &l, &negative) < 0) {
 452         fprintf(stderr, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context)));
 453         quit(1);
 454         return;
 455     }
 456
 457     fprintf(stderr, "Time: %0.3f sec; Latency: %0.0f usec.  \r",
 458             (float) usec / 1000000,
 459             (float) l * (negative?-1:1));
 460 }
 461
 462 /* Someone requested that the latency is shown */
 463 static void sigusr1_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 464
 465     if (!stream)
 466         return;
 467
 468     pa_operation_unref(pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL));
 469 }
 470
 471 static void time_event_callback(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
 472     struct timeval next;
 473
 474     if (stream && pa_stream_get_state(stream) == PA_STREAM_READY) {
 475         pa_operation *o;
 476         if (!(o = pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL)))
 477             fprintf(stderr, "pa_stream_update_timing_info() failed: %s\n", pa_strerror(pa_context_errno(context)));
 478         else
 479             pa_operation_unref(o);
 480     }
 481
 482     pa_gettimeofday(&next);
 483     pa_timeval_add(&next, TIME_EVENT_USEC);
 484
 485     m->time_restart(e, &next);
 486 }
 487
 488 static void help(const char *argv0) {
 489
 490     printf("%s [options]\n\n"
 491            "  -h, --help                            Show this help\n"
 492            "      --version                         Show version\n\n"
 493            "  -r, --record                          Create a connection for recording\n"
 494            "  -p, --playback                        Create a connection for playback\n\n"
 495            "  -v, --verbose                         Enable verbose operations\n\n"
 496            "  -s, --server=SERVER                   The name of the server to connect to\n"
 497            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
 498            "  -n, --client-name=NAME                How to call this client on the server\n"
 499            "      --stream-name=NAME                How to call this stream on the server\n"
 500            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 501            "      --rate=SAMPLERATE                 The sample rate in Hz (defaults to 44100)\n"
 502            "      --format=SAMPLEFORMAT             The sample type, one of s16le, s16be, u8, float32le,\n"
 503            "                                        float32be, ulaw, alaw (defaults to s16ne)\n"
 504            "      --channels=CHANNELS               The number of channels, 1 for mono, 2 for stereo\n"
 505            "                                        (defaults to 2)\n"
 506            "      --channel-map=CHANNELMAP          Channel map to use instead of the default\n"
 507            "      --fix-format                      Take the sample format from the sink the stream is\n"
 508            "                                        being connected to.\n"
 509            "      --fix-rate                        Take the sampling rate from the sink the stream is\n"
 510            "                                        being connected to.\n"
 511            "      --fix-channels                    Take the number of channels and the channel map\n"
 512            "                                        from the sink the stream is being connected to.\n"
 513            "      --no-remix                        Don't upmix or downmix channels.\n"
 514            "      --no-remap                        Map channels by index instead of name.\n"
 515            "      --latency=BYTES                   Request the specified latency in bytes.\n"
 516            "      --process-time=BYTES              Request the specified process time per request in bytes.\n"
 517            ,
 518            argv0);
 519 }
 520
 521 enum {
 522     ARG_VERSION = 256,
 523     ARG_STREAM_NAME,
 524     ARG_VOLUME,
 525     ARG_SAMPLERATE,
 526     ARG_SAMPLEFORMAT,
 527     ARG_CHANNELS,
 528     ARG_CHANNELMAP,
 529     ARG_FIX_FORMAT,
 530     ARG_FIX_RATE,
 531     ARG_FIX_CHANNELS,
 532     ARG_NO_REMAP,
 533     ARG_NO_REMIX,
 534     ARG_LATENCY,
 535     ARG_PROCESS_TIME
 536 };
 537
 538 int main(int argc, char *argv[]) {
 539     pa_mainloop* m = NULL;
 540     int ret = 1, r, c;
 541     char *bn, *server = NULL;
 542     pa_time_event *time_event = NULL;
 543
 544     static const struct option long_options[] = {
 545         {"record",       0, NULL, 'r'},
 546         {"playback",     0, NULL, 'p'},
 547         {"device",       1, NULL, 'd'},
 548         {"server",       1, NULL, 's'},
 549         {"client-name",  1, NULL, 'n'},
 550         {"stream-name",  1, NULL, ARG_STREAM_NAME},
 551         {"version",      0, NULL, ARG_VERSION},
 552         {"help",         0, NULL, 'h'},
 553         {"verbose",      0, NULL, 'v'},
 554         {"volume",       1, NULL, ARG_VOLUME},
 555         {"rate",         1, NULL, ARG_SAMPLERATE},
 556         {"format",       1, NULL, ARG_SAMPLEFORMAT},
 557         {"channels",     1, NULL, ARG_CHANNELS},
 558         {"channel-map",  1, NULL, ARG_CHANNELMAP},
 559         {"fix-format",   0, NULL, ARG_FIX_FORMAT},
 560         {"fix-rate",     0, NULL, ARG_FIX_RATE},
 561         {"fix-channels", 0, NULL, ARG_FIX_CHANNELS},
 562         {"no-remap",     0, NULL, ARG_NO_REMAP},
 563         {"no-remix",     0, NULL, ARG_NO_REMIX},
 564         {"latency",      1, NULL, ARG_LATENCY},
 565         {"process-time", 1, NULL, ARG_PROCESS_TIME},
 566         {NULL,           0, NULL, 0}
 567     };
 568
 569     if (!(bn = strrchr(argv[0], '/')))
 570         bn = argv[0];
 571     else
 572         bn++;
 573
 574     if (strstr(bn, "rec") || strstr(bn, "mon"))
 575         mode = RECORD;
 576     else if (strstr(bn, "cat") || strstr(bn, "play"))
 577         mode = PLAYBACK;
 578
 579     while ((c = getopt_long(argc, argv, "rpd:s:n:hv", long_options, NULL)) != -1) {
 580
 581         switch (c) {
 582             case 'h' :
 583                 help(bn);
 584                 ret = 0;
 585                 goto quit;
 586
 587             case ARG_VERSION:
 588                 printf("pacat "PACKAGE_VERSION"\nCompiled with libpulse %s\nLinked with libpulse %s\n", pa_get_headers_version(), pa_get_library_version());
 589                 ret = 0;
 590                 goto quit;
 591
 592             case 'r':
 593                 mode = RECORD;
 594                 break;
 595
 596             case 'p':
 597                 mode = PLAYBACK;
 598                 break;
 599
 600             case 'd':
 601                 pa_xfree(device);
 602                 device = pa_xstrdup(optarg);
 603                 break;
 604
 605             case 's':
 606                 pa_xfree(server);
 607                 server = pa_xstrdup(optarg);
 608                 break;
 609
 610             case 'n':
 611                 pa_xfree(client_name);
 612                 client_name = pa_xstrdup(optarg);
 613                 break;
 614
 615             case ARG_STREAM_NAME:
 616                 pa_xfree(stream_name);
 617                 stream_name = pa_xstrdup(optarg);
 618                 break;
 619
 620             case 'v':
 621                 verbose = 1;
 622                 break;
 623
 624             case ARG_VOLUME: {
 625                 int v = atoi(optarg);
 626                 volume = v < 0 ? 0 : v;
 627                 break;
 628             }
 629
 630             case ARG_CHANNELS:
 631                 sample_spec.channels = atoi(optarg);
 632                 break;
 633
 634             case ARG_SAMPLEFORMAT:
 635                 sample_spec.format = pa_parse_sample_format(optarg);
 636                 break;
 637
 638             case ARG_SAMPLERATE:
 639                 sample_spec.rate = atoi(optarg);
 640                 break;
 641
 642             case ARG_CHANNELMAP:
 643                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 644                     fprintf(stderr, "Invalid channel map '%s'\n", optarg);
 645                     goto quit;
 646                 }
 647
 648                 channel_map_set = 1;
 649                 break;
 650
 651             case ARG_FIX_CHANNELS:
 652                 flags |= PA_STREAM_FIX_CHANNELS;
 653                 break;
 654
 655             case ARG_FIX_RATE:
 656                 flags |= PA_STREAM_FIX_RATE;
 657                 break;
 658
 659             case ARG_FIX_FORMAT:
 660                 flags |= PA_STREAM_FIX_FORMAT;
 661                 break;
 662
 663             case ARG_NO_REMIX:
 664                 flags |= PA_STREAM_NO_REMIX_CHANNELS;
 665                 break;
 666
 667             case ARG_NO_REMAP:
 668                 flags |= PA_STREAM_NO_REMAP_CHANNELS;
 669                 break;
 670
 671             case ARG_LATENCY:
 672                 if (((latency = atoi(optarg))) <= 0) {
 673                     fprintf(stderr, "Invalid latency specification '%s'\n", optarg);
 674                     goto quit;
 675                 }
 676                 break;
 677
 678             case ARG_PROCESS_TIME:
 679                 if (((process_time = atoi(optarg))) <= 0) {
 680                     fprintf(stderr, "Invalid process time specification '%s'\n", optarg);
 681                     goto quit;
 682                 }
 683                 break;
 684
 685             default:
 686                 goto quit;
 687         }
 688     }
 689
 690     if (!pa_sample_spec_valid(&sample_spec)) {
 691         fprintf(stderr, "Invalid sample specification\n");
 692         goto quit;
 693     }
 694
 695     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 696         fprintf(stderr, "Channel map doesn't match sample specification\n");
 697         goto quit;
 698     }
 699
 700     if (verbose) {
 701         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 702         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 703         fprintf(stderr, "Opening a %s stream with sample specification '%s'.\n", mode == RECORD ? "recording" : "playback", t);
 704     }
 705
 706     if (!(optind >= argc)) {
 707         if (optind+1 == argc) {
 708             int fd;
 709
 710             if ((fd = open(argv[optind], mode == PLAYBACK ? O_RDONLY : O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) {
 711                 fprintf(stderr, "open(): %s\n", strerror(errno));
 712                 goto quit;
 713             }
 714
 715             if (dup2(fd, mode == PLAYBACK ? 0 : 1) < 0) {
 716                 fprintf(stderr, "dup2(): %s\n", strerror(errno));
 717                 goto quit;
 718             }
 719
 720             close(fd);
 721
 722             if (!stream_name)
 723                 stream_name = pa_xstrdup(argv[optind]);
 724
 725         } else {
 726             fprintf(stderr, "Too many arguments.\n");
 727             goto quit;
 728         }
 729     }
 730
 731     if (!client_name)
 732         client_name = pa_xstrdup(bn);
 733
 734     if (!stream_name)
 735         stream_name = pa_xstrdup(client_name);
 736
 737     /* Set up a new main loop */
 738     if (!(m = pa_mainloop_new())) {
 739         fprintf(stderr, "pa_mainloop_new() failed.\n");
 740         goto quit;
 741     }
 742
 743     mainloop_api = pa_mainloop_get_api(m);
 744
 745     r = pa_signal_init(mainloop_api);
 746     assert(r == 0);
 747     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 748     pa_signal_new(SIGTERM, exit_signal_callback, NULL);
 749 #ifdef SIGUSR1
 750     pa_signal_new(SIGUSR1, sigusr1_signal_callback, NULL);
 751 #endif
 752 #ifdef SIGPIPE
 753     signal(SIGPIPE, SIG_IGN);
 754 #endif
 755
 756     if (!(stdio_event = mainloop_api->io_new(mainloop_api,
 757                                              mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO,
 758                                              mode == PLAYBACK ? PA_IO_EVENT_INPUT : PA_IO_EVENT_OUTPUT,
 759                                              mode == PLAYBACK ? stdin_callback : stdout_callback, NULL))) {
 760         fprintf(stderr, "io_new() failed.\n");
 761         goto quit;
 762     }
 763
 764     /* Create a new connection context */
 765     if (!(context = pa_context_new(mainloop_api, client_name))) {
 766         fprintf(stderr, "pa_context_new() failed.\n");
 767         goto quit;
 768     }
 769
 770     pa_context_set_state_callback(context, context_state_callback, NULL);
 771
 772     /* Connect the context */
 773     pa_context_connect(context, server, 0, NULL);
 774
 775     if (verbose) {
 776         struct timeval tv;
 777
 778         pa_gettimeofday(&tv);
 779         pa_timeval_add(&tv, TIME_EVENT_USEC);
 780
 781         if (!(time_event = mainloop_api->time_new(mainloop_api, &tv, time_event_callback, NULL))) {
 782             fprintf(stderr, "time_new() failed.\n");
 783             goto quit;
 784         }
 785     }
 786
 787     /* Run the main loop */
 788     if (pa_mainloop_run(m, &ret) < 0) {
 789         fprintf(stderr, "pa_mainloop_run() failed.\n");
 790         goto quit;
 791     }
 792
 793 quit:
 794     if (stream)
 795         pa_stream_unref(stream);
 796
 797     if (context)
 798         pa_context_unref(context);
 799
 800     if (stdio_event) {
 801         assert(mainloop_api);
 802         mainloop_api->io_free(stdio_event);
 803     }
 804
 805     if (time_event) {
 806         assert(mainloop_api);
 807         mainloop_api->time_free(time_event);
 808     }
 809
 810     if (m) {
 811         pa_signal_done();
 812         pa_mainloop_free(m);
 813     }
 814
 815     pa_xfree(buffer);
 816
 817     pa_xfree(server);
 818     pa_xfree(device);
 819     pa_xfree(client_name);
 820     pa_xfree(stream_name);
 821
 822     return ret;
 823 }