code.delx.au - pulseaudio/blob - src/utils/paplay.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 <locale.h>
  36
  37 #include <sndfile.h>
  38
  39 #include <pulse/pulseaudio.h>
  40 #include <pulse/i18n.h>
  41
  42 static pa_context *context = NULL;
  43 static pa_stream *stream = NULL;
  44 static pa_mainloop_api *mainloop_api = NULL;
  45
  46 static char *stream_name = NULL, *client_name = NULL, *device = NULL;
  47
  48 static int verbose = 0;
  49 static pa_volume_t volume = PA_VOLUME_NORM;
  50
  51 static SNDFILE* sndfile = NULL;
  52
  53 static pa_sample_spec sample_spec = { 0, 0, 0 };
  54 static pa_channel_map channel_map;
  55 static int channel_map_set = 0;
  56
  57 static sf_count_t (*readf_function)(SNDFILE *_sndfile, void *ptr, sf_count_t frames) = NULL;
  58
  59 /* A shortcut for terminating the application */
  60 static void quit(int ret) {
  61     assert(mainloop_api);
  62     mainloop_api->quit(mainloop_api, ret);
  63 }
  64
  65 /* Connection draining complete */
  66 static void context_drain_complete(pa_context*c, void *userdata) {
  67     pa_context_disconnect(c);
  68 }
  69
  70 /* Stream draining complete */
  71 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
  72     pa_operation *o;
  73
  74     if (!success) {
  75         fprintf(stderr, _("Failed to drain stream: %s\n"), pa_strerror(pa_context_errno(context)));
  76         quit(1);
  77     }
  78
  79     if (verbose)
  80         fprintf(stderr, _("Playback stream drained.\n"));
  81
  82     pa_stream_disconnect(stream);
  83     pa_stream_unref(stream);
  84     stream = NULL;
  85
  86     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
  87         pa_context_disconnect(context);
  88     else {
  89         pa_operation_unref(o);
  90
  91         if (verbose)
  92             fprintf(stderr, _("Draining connection to server.\n"));
  93     }
  94 }
  95
  96 /* This is called whenever new data may be written to the stream */
  97 static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
  98     sf_count_t bytes;
  99     void *data;
 100     assert(s && length);
 101
 102     if (!sndfile)
 103         return;
 104
 105     data = pa_xmalloc(length);
 106
 107     if (readf_function) {
 108         size_t k = pa_frame_size(&sample_spec);
 109
 110         if ((bytes = readf_function(sndfile, data, (sf_count_t) (length/k))) > 0)
 111             bytes *= (sf_count_t) k;
 112
 113     } else
 114         bytes = sf_read_raw(sndfile, data, (sf_count_t) length);
 115
 116     if (bytes > 0)
 117         pa_stream_write(s, data, (size_t) bytes, pa_xfree, 0, PA_SEEK_RELATIVE);
 118     else
 119         pa_xfree(data);
 120
 121     if (bytes < (sf_count_t) length) {
 122         sf_close(sndfile);
 123         sndfile = NULL;
 124         pa_operation_unref(pa_stream_drain(s, stream_drain_complete, NULL));
 125     }
 126 }
 127
 128 /* This routine is called whenever the stream state changes */
 129 static void stream_state_callback(pa_stream *s, void *userdata) {
 130     assert(s);
 131
 132     switch (pa_stream_get_state(s)) {
 133         case PA_STREAM_CREATING:
 134         case PA_STREAM_TERMINATED:
 135             break;
 136
 137         case PA_STREAM_READY:
 138             if (verbose)
 139                 fprintf(stderr, _("Stream successfully created\n"));
 140             break;
 141
 142         case PA_STREAM_FAILED:
 143         default:
 144             fprintf(stderr, _("Stream errror: %s\n"), pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 145             quit(1);
 146     }
 147 }
 148
 149 /* This is called whenever the context status changes */
 150 static void context_state_callback(pa_context *c, void *userdata) {
 151     assert(c);
 152
 153     switch (pa_context_get_state(c)) {
 154         case PA_CONTEXT_CONNECTING:
 155         case PA_CONTEXT_AUTHORIZING:
 156         case PA_CONTEXT_SETTING_NAME:
 157             break;
 158
 159         case PA_CONTEXT_READY: {
 160             pa_cvolume cv;
 161
 162             assert(c && !stream);
 163
 164             if (verbose)
 165                 fprintf(stderr, _("Connection established.\n"));
 166
 167             stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL);
 168             assert(stream);
 169
 170             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 171             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 172             pa_stream_connect_playback(stream, device, NULL, 0, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL);
 173
 174             break;
 175         }
 176
 177         case PA_CONTEXT_TERMINATED:
 178             quit(0);
 179             break;
 180
 181         case PA_CONTEXT_FAILED:
 182         default:
 183             fprintf(stderr, _("Connection failure: %s\n"), pa_strerror(pa_context_errno(c)));
 184             quit(1);
 185     }
 186 }
 187
 188 /* UNIX signal to quit recieved */
 189 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 190     if (verbose)
 191         fprintf(stderr, _("Got SIGINT, exiting.\n"));
 192     quit(0);
 193
 194 }
 195
 196 static void help(const char *argv0) {
 197
 198     printf(_("%s [options] [FILE]\n\n"
 199            "  -h, --help                            Show this help\n"
 200            "      --version                         Show version\n\n"
 201            "  -v, --verbose                         Enable verbose operation\n\n"
 202            "  -s, --server=SERVER                   The name of the server to connect to\n"
 203            "  -d, --device=DEVICE                   The name of the sink to connect to\n"
 204            "  -n, --client-name=NAME                How to call this client on the server\n"
 205            "      --stream-name=NAME                How to call this stream on the server\n"
 206            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 207              "      --channel-map=CHANNELMAP          Set the channel map to the use\n"),
 208            argv0);
 209 }
 210
 211 enum {
 212     ARG_VERSION = 256,
 213     ARG_STREAM_NAME,
 214     ARG_VOLUME,
 215     ARG_CHANNELMAP
 216 };
 217
 218 int main(int argc, char *argv[]) {
 219     pa_mainloop* m = NULL;
 220     int ret = 1, r, c;
 221     char *bn, *server = NULL;
 222     const char *filename;
 223     SF_INFO sfinfo;
 224
 225     static const struct option long_options[] = {
 226         {"device",      1, NULL, 'd'},
 227         {"server",      1, NULL, 's'},
 228         {"client-name", 1, NULL, 'n'},
 229         {"stream-name", 1, NULL, ARG_STREAM_NAME},
 230         {"version",     0, NULL, ARG_VERSION},
 231         {"help",        0, NULL, 'h'},
 232         {"verbose",     0, NULL, 'v'},
 233         {"volume",      1, NULL, ARG_VOLUME},
 234         {"channel-map", 1, NULL, ARG_CHANNELMAP},
 235         {NULL,          0, NULL, 0}
 236     };
 237
 238     setlocale(LC_ALL, "");
 239     bindtextdomain(GETTEXT_PACKAGE, PULSE_LOCALEDIR);
 240
 241     if (!(bn = strrchr(argv[0], '/')))
 242         bn = argv[0];
 243     else
 244         bn++;
 245
 246     while ((c = getopt_long(argc, argv, "d:s:n:hv", long_options, NULL)) != -1) {
 247
 248         switch (c) {
 249             case 'h' :
 250                 help(bn);
 251                 ret = 0;
 252                 goto quit;
 253
 254             case ARG_VERSION:
 255                 printf(_("paplay %s\nCompiled with libpulse %s\n"
 256                         "Linked with libpulse %s\n"), PACKAGE_VERSION, pa_get_headers_version(), pa_get_library_version());
 257                 ret = 0;
 258                 goto quit;
 259
 260             case 'd':
 261                 pa_xfree(device);
 262                 device = pa_xstrdup(optarg);
 263                 break;
 264
 265             case 's':
 266                 pa_xfree(server);
 267                 server = pa_xstrdup(optarg);
 268                 break;
 269
 270             case 'n':
 271                 pa_xfree(client_name);
 272                 client_name = pa_xstrdup(optarg);
 273                 break;
 274
 275             case ARG_STREAM_NAME:
 276                 pa_xfree(stream_name);
 277                 stream_name = pa_xstrdup(optarg);
 278                 break;
 279
 280             case 'v':
 281                 verbose = 1;
 282                 break;
 283
 284             case ARG_VOLUME: {
 285                 int v = atoi(optarg);
 286                 volume = v < 0 ? 0U : (pa_volume_t) v;
 287                 break;
 288             }
 289
 290             case ARG_CHANNELMAP:
 291                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 292                     fprintf(stderr, _("Invalid channel map\n"));
 293                     goto quit;
 294                 }
 295
 296                 channel_map_set = 1;
 297                 break;
 298
 299             default:
 300                 goto quit;
 301         }
 302     }
 303
 304     filename = optind < argc ? argv[optind] : "STDIN";
 305
 306     memset(&sfinfo, 0, sizeof(sfinfo));
 307
 308     if (optind < argc)
 309         sndfile = sf_open(filename, SFM_READ, &sfinfo);
 310     else
 311         sndfile = sf_open_fd(STDIN_FILENO, SFM_READ, &sfinfo, 0);
 312
 313     if (!sndfile) {
 314         fprintf(stderr, _("Failed to open file '%s'\n"), filename);
 315         goto quit;
 316     }
 317
 318     sample_spec.rate = (uint32_t) sfinfo.samplerate;
 319     sample_spec.channels = (uint8_t) sfinfo.channels;
 320
 321     readf_function = NULL;
 322
 323     switch (sfinfo.format & 0xFF) {
 324         case SF_FORMAT_PCM_16:
 325         case SF_FORMAT_PCM_U8:
 326         case SF_FORMAT_PCM_S8:
 327             sample_spec.format = PA_SAMPLE_S16NE;
 328             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_short;
 329             break;
 330
 331         case SF_FORMAT_ULAW:
 332             sample_spec.format = PA_SAMPLE_ULAW;
 333             break;
 334
 335         case SF_FORMAT_ALAW:
 336             sample_spec.format = PA_SAMPLE_ALAW;
 337             break;
 338
 339         case SF_FORMAT_FLOAT:
 340         case SF_FORMAT_DOUBLE:
 341         default:
 342             sample_spec.format = PA_SAMPLE_FLOAT32NE;
 343             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_float;
 344             break;
 345     }
 346
 347     assert(pa_sample_spec_valid(&sample_spec));
 348
 349     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 350         fprintf(stderr, _("Channel map doesn't match file.\n"));
 351         goto quit;
 352     }
 353
 354     if (!client_name) {
 355         client_name = pa_locale_to_utf8(bn);
 356         if (!client_name)
 357             client_name = pa_utf8_filter(bn);
 358     }
 359
 360     if (!stream_name) {
 361         const char *n;
 362
 363         n = sf_get_string(sndfile, SF_STR_TITLE);
 364
 365         if (!n)
 366             n = filename;
 367
 368         stream_name = pa_locale_to_utf8(n);
 369         if (!stream_name)
 370             stream_name = pa_utf8_filter(n);
 371     }
 372
 373     if (verbose) {
 374         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 375         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 376         fprintf(stderr, _("Using sample spec '%s'\n"), t);
 377     }
 378
 379     /* Set up a new main loop */
 380     if (!(m = pa_mainloop_new())) {
 381         fprintf(stderr, _("pa_mainloop_new() failed.\n"));
 382         goto quit;
 383     }
 384
 385     mainloop_api = pa_mainloop_get_api(m);
 386
 387     r = pa_signal_init(mainloop_api);
 388     assert(r == 0);
 389     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 390 #ifdef SIGPIPE
 391     signal(SIGPIPE, SIG_IGN);
 392 #endif
 393
 394     /* Create a new connection context */
 395     if (!(context = pa_context_new(mainloop_api, client_name))) {
 396         fprintf(stderr, _("pa_context_new() failed.\n"));
 397         goto quit;
 398     }
 399
 400     pa_context_set_state_callback(context, context_state_callback, NULL);
 401
 402     /* Connect the context */
 403     if (pa_context_connect(context, server, 0, NULL) < 0) {
 404         fprintf(stderr, _("pa_context_connect() failed: %s"), pa_strerror(pa_context_errno(context)));
 405         goto quit;
 406     }
 407
 408     /* Run the main loop */
 409     if (pa_mainloop_run(m, &ret) < 0) {
 410         fprintf(stderr, _("pa_mainloop_run() failed.\n"));
 411         goto quit;
 412     }
 413
 414 quit:
 415     if (stream)
 416         pa_stream_unref(stream);
 417
 418     if (context)
 419         pa_context_unref(context);
 420
 421     if (m) {
 422         pa_signal_done();
 423         pa_mainloop_free(m);
 424     }
 425
 426     pa_xfree(server);
 427     pa_xfree(device);
 428     pa_xfree(client_name);
 429     pa_xfree(stream_name);
 430
 431     if (sndfile)
 432         sf_close(sndfile);
 433
 434     return ret;
 435 }