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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <signal.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <unistd.h>
  30 #include <assert.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <getopt.h>
  34 #include <locale.h>
  35
  36 #include <sndfile.h>
  37
  38 #include <pulse/pulseaudio.h>
  39
  40 #if PA_API_VERSION != 9
  41 #error Invalid PulseAudio API version
  42 #endif
  43
  44 static pa_context *context = NULL;
  45 static pa_stream *stream = NULL;
  46 static pa_mainloop_api *mainloop_api = NULL;
  47
  48 static char *stream_name = NULL, *client_name = NULL, *device = NULL;
  49
  50 static int verbose = 0;
  51 static pa_volume_t volume = PA_VOLUME_NORM;
  52
  53 static SNDFILE* sndfile = NULL;
  54
  55 static pa_sample_spec sample_spec = { 0, 0, 0 };
  56 static pa_channel_map channel_map;
  57 static int channel_map_set = 0;
  58
  59 static sf_count_t (*readf_function)(SNDFILE *_sndfile, void *ptr, sf_count_t frames) = NULL;
  60
  61 /* A shortcut for terminating the application */
  62 static void quit(int ret) {
  63     assert(mainloop_api);
  64     mainloop_api->quit(mainloop_api, ret);
  65 }
  66
  67 /* Connection draining complete */
  68 static void context_drain_complete(pa_context*c, void *userdata) {
  69     pa_context_disconnect(c);
  70 }
  71
  72 /* Stream draining complete */
  73 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
  74     pa_operation *o;
  75
  76     if (!success) {
  77         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
  78         quit(1);
  79     }
  80
  81     if (verbose)
  82         fprintf(stderr, "Playback stream drained.\n");
  83
  84     pa_stream_disconnect(stream);
  85     pa_stream_unref(stream);
  86     stream = NULL;
  87
  88     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
  89         pa_context_disconnect(context);
  90     else {
  91         pa_operation_unref(o);
  92
  93         if (verbose)
  94             fprintf(stderr, "Draining connection to server.\n");
  95     }
  96 }
  97
  98 /* This is called whenever new data may be written to the stream */
  99 static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
 100     sf_count_t bytes;
 101     void *data;
 102     assert(s && length);
 103
 104     if (!sndfile)
 105         return;
 106
 107     data = pa_xmalloc(length);
 108
 109     if (readf_function) {
 110         size_t k = pa_frame_size(&sample_spec);
 111
 112         if ((bytes = readf_function(sndfile, data, length/k)) > 0)
 113             bytes *= k;
 114
 115     } else
 116         bytes = sf_read_raw(sndfile, data, length);
 117
 118     if (bytes > 0)
 119         pa_stream_write(s, data, bytes, pa_xfree, 0, PA_SEEK_RELATIVE);
 120     else
 121         pa_xfree(data);
 122
 123     if (bytes < length) {
 124         sf_close(sndfile);
 125         sndfile = NULL;
 126         pa_operation_unref(pa_stream_drain(s, stream_drain_complete, NULL));
 127     }
 128 }
 129
 130 /* This routine is called whenever the stream state changes */
 131 static void stream_state_callback(pa_stream *s, void *userdata) {
 132     assert(s);
 133
 134     switch (pa_stream_get_state(s)) {
 135         case PA_STREAM_CREATING:
 136         case PA_STREAM_TERMINATED:
 137             break;
 138
 139         case PA_STREAM_READY:
 140             if (verbose)
 141                 fprintf(stderr, "Stream successfully created\n");
 142             break;
 143
 144         case PA_STREAM_FAILED:
 145         default:
 146             fprintf(stderr, "Stream errror: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 147             quit(1);
 148     }
 149 }
 150
 151 /* This is called whenever the context status changes */
 152 static void context_state_callback(pa_context *c, void *userdata) {
 153     assert(c);
 154
 155     switch (pa_context_get_state(c)) {
 156         case PA_CONTEXT_CONNECTING:
 157         case PA_CONTEXT_AUTHORIZING:
 158         case PA_CONTEXT_SETTING_NAME:
 159             break;
 160
 161         case PA_CONTEXT_READY: {
 162             pa_cvolume cv;
 163
 164             assert(c && !stream);
 165
 166             if (verbose)
 167                 fprintf(stderr, "Connection established.\n");
 168
 169             stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL);
 170             assert(stream);
 171
 172             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 173             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 174             pa_stream_connect_playback(stream, device, NULL, 0, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL);
 175
 176             break;
 177         }
 178
 179         case PA_CONTEXT_TERMINATED:
 180             quit(0);
 181             break;
 182
 183         case PA_CONTEXT_FAILED:
 184         default:
 185             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 186             quit(1);
 187     }
 188 }
 189
 190 /* UNIX signal to quit recieved */
 191 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 192     if (verbose)
 193         fprintf(stderr, "Got SIGINT, exiting.\n");
 194     quit(0);
 195
 196 }
 197
 198 static void help(const char *argv0) {
 199
 200     printf("%s [options] [FILE]\n\n"
 201            "  -h, --help                            Show this help\n"
 202            "      --version                         Show version\n\n"
 203            "  -v, --verbose                         Enable verbose operations\n\n"
 204            "  -s, --server=SERVER                   The name of the server to connect to\n"
 205            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
 206            "  -n, --client-name=NAME                How to call this client on the server\n"
 207            "      --stream-name=NAME                How to call this stream on the server\n"
 208            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 209            "      --channel-map=CHANNELMAP          Set the channel map to the use\n",
 210            argv0);
 211 }
 212
 213 enum {
 214     ARG_VERSION = 256,
 215     ARG_STREAM_NAME,
 216     ARG_VOLUME,
 217     ARG_CHANNELMAP
 218 };
 219
 220 int main(int argc, char *argv[]) {
 221     pa_mainloop* m = NULL;
 222     int ret = 1, r, c;
 223     char *bn, *server = NULL;
 224     const char *filename;
 225     SF_INFO sfinfo;
 226
 227     static const struct option long_options[] = {
 228         {"device",      1, NULL, 'd'},
 229         {"server",      1, NULL, 's'},
 230         {"client-name", 1, NULL, 'n'},
 231         {"stream-name", 1, NULL, ARG_STREAM_NAME},
 232         {"version",     0, NULL, ARG_VERSION},
 233         {"help",        0, NULL, 'h'},
 234         {"verbose",     0, NULL, 'v'},
 235         {"volume",      1, NULL, ARG_VOLUME},
 236         {"channel-map", 1, NULL, ARG_CHANNELMAP},
 237         {NULL,          0, NULL, 0}
 238     };
 239
 240     setlocale(LC_ALL, "");
 241
 242     if (!(bn = strrchr(argv[0], '/')))
 243         bn = argv[0];
 244     else
 245         bn++;
 246
 247     while ((c = getopt_long(argc, argv, "d:s:n:hv", long_options, NULL)) != -1) {
 248
 249         switch (c) {
 250             case 'h' :
 251                 help(bn);
 252                 ret = 0;
 253                 goto quit;
 254
 255             case ARG_VERSION:
 256                 printf("paplay "PACKAGE_VERSION"\nCompiled with libpulse %s\nLinked with libpulse %s\n", 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 ? 0 : 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 = sfinfo.samplerate;
 319     sample_spec.channels = 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     pa_context_connect(context, server, 0, NULL);
 404
 405     /* Run the main loop */
 406     if (pa_mainloop_run(m, &ret) < 0) {
 407         fprintf(stderr, "pa_mainloop_run() failed.\n");
 408         goto quit;
 409     }
 410
 411 quit:
 412     if (stream)
 413         pa_stream_unref(stream);
 414
 415     if (context)
 416         pa_context_unref(context);
 417
 418     if (m) {
 419         pa_signal_done();
 420         pa_mainloop_free(m);
 421     }
 422
 423     pa_xfree(server);
 424     pa_xfree(device);
 425     pa_xfree(client_name);
 426     pa_xfree(stream_name);
 427
 428     if (sndfile)
 429         sf_close(sndfile);
 430
 431     return ret;
 432 }