code.delx.au - pulseaudio/blob - src/utils/paplay.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 <locale.h>
  38
  39 #include <sndfile.h>
  40
  41 #include <pulse/pulseaudio.h>
  42
  43 #if PA_API_VERSION < 9
  44 #error Invalid PulseAudio API version
  45 #endif
  46
  47 static pa_context *context = NULL;
  48 static pa_stream *stream = NULL;
  49 static pa_mainloop_api *mainloop_api = NULL;
  50
  51 static char *stream_name = NULL, *client_name = NULL, *device = NULL;
  52
  53 static int verbose = 0;
  54 static pa_volume_t volume = PA_VOLUME_NORM;
  55
  56 static SNDFILE* sndfile = NULL;
  57
  58 static pa_sample_spec sample_spec = { 0, 0, 0 };
  59 static pa_channel_map channel_map;
  60 static int channel_map_set = 0;
  61
  62 static sf_count_t (*readf_function)(SNDFILE *_sndfile, void *ptr, sf_count_t frames) = NULL;
  63
  64 /* A shortcut for terminating the application */
  65 static void quit(int ret) {
  66     assert(mainloop_api);
  67     mainloop_api->quit(mainloop_api, ret);
  68 }
  69
  70 /* Connection draining complete */
  71 static void context_drain_complete(pa_context*c, void *userdata) {
  72     pa_context_disconnect(c);
  73 }
  74
  75 /* Stream draining complete */
  76 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
  77     pa_operation *o;
  78
  79     if (!success) {
  80         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
  81         quit(1);
  82     }
  83
  84     if (verbose)
  85         fprintf(stderr, "Playback stream drained.\n");
  86
  87     pa_stream_disconnect(stream);
  88     pa_stream_unref(stream);
  89     stream = NULL;
  90
  91     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
  92         pa_context_disconnect(context);
  93     else {
  94         pa_operation_unref(o);
  95
  96         if (verbose)
  97             fprintf(stderr, "Draining connection to server.\n");
  98     }
  99 }
 100
 101 /* This is called whenever new data may be written to the stream */
 102 static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
 103     sf_count_t bytes;
 104     void *data;
 105     assert(s && length);
 106
 107     if (!sndfile)
 108         return;
 109
 110     data = pa_xmalloc(length);
 111
 112     if (readf_function) {
 113         size_t k = pa_frame_size(&sample_spec);
 114
 115         if ((bytes = readf_function(sndfile, data, length/k)) > 0)
 116             bytes *= k;
 117
 118     } else
 119         bytes = sf_read_raw(sndfile, data, length);
 120
 121     if (bytes > 0)
 122         pa_stream_write(s, data, bytes, pa_xfree, 0, PA_SEEK_RELATIVE);
 123     else
 124         pa_xfree(data);
 125
 126     if (bytes < (sf_count_t) length) {
 127         sf_close(sndfile);
 128         sndfile = NULL;
 129         pa_operation_unref(pa_stream_drain(s, stream_drain_complete, NULL));
 130     }
 131 }
 132
 133 /* This routine is called whenever the stream state changes */
 134 static void stream_state_callback(pa_stream *s, void *userdata) {
 135     assert(s);
 136
 137     switch (pa_stream_get_state(s)) {
 138         case PA_STREAM_CREATING:
 139         case PA_STREAM_TERMINATED:
 140             break;
 141
 142         case PA_STREAM_READY:
 143             if (verbose)
 144                 fprintf(stderr, "Stream successfully created\n");
 145             break;
 146
 147         case PA_STREAM_FAILED:
 148         default:
 149             fprintf(stderr, "Stream errror: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 150             quit(1);
 151     }
 152 }
 153
 154 /* This is called whenever the context status changes */
 155 static void context_state_callback(pa_context *c, void *userdata) {
 156     assert(c);
 157
 158     switch (pa_context_get_state(c)) {
 159         case PA_CONTEXT_CONNECTING:
 160         case PA_CONTEXT_AUTHORIZING:
 161         case PA_CONTEXT_SETTING_NAME:
 162             break;
 163
 164         case PA_CONTEXT_READY: {
 165             pa_cvolume cv;
 166
 167             assert(c && !stream);
 168
 169             if (verbose)
 170                 fprintf(stderr, "Connection established.\n");
 171
 172             stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL);
 173             assert(stream);
 174
 175             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 176             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 177             pa_stream_connect_playback(stream, device, NULL, 0, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL);
 178
 179             break;
 180         }
 181
 182         case PA_CONTEXT_TERMINATED:
 183             quit(0);
 184             break;
 185
 186         case PA_CONTEXT_FAILED:
 187         default:
 188             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 189             quit(1);
 190     }
 191 }
 192
 193 /* UNIX signal to quit recieved */
 194 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 195     if (verbose)
 196         fprintf(stderr, "Got SIGINT, exiting.\n");
 197     quit(0);
 198
 199 }
 200
 201 static void help(const char *argv0) {
 202
 203     printf("%s [options] [FILE]\n\n"
 204            "  -h, --help                            Show this help\n"
 205            "      --version                         Show version\n\n"
 206            "  -v, --verbose                         Enable verbose operations\n\n"
 207            "  -s, --server=SERVER                   The name of the server to connect to\n"
 208            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
 209            "  -n, --client-name=NAME                How to call this client on the server\n"
 210            "      --stream-name=NAME                How to call this stream on the server\n"
 211            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 212            "      --channel-map=CHANNELMAP          Set the channel map to the use\n",
 213            argv0);
 214 }
 215
 216 enum {
 217     ARG_VERSION = 256,
 218     ARG_STREAM_NAME,
 219     ARG_VOLUME,
 220     ARG_CHANNELMAP
 221 };
 222
 223 int main(int argc, char *argv[]) {
 224     pa_mainloop* m = NULL;
 225     int ret = 1, r, c;
 226     char *bn, *server = NULL;
 227     const char *filename;
 228     SF_INFO sfinfo;
 229
 230     static const struct option long_options[] = {
 231         {"device",      1, NULL, 'd'},
 232         {"server",      1, NULL, 's'},
 233         {"client-name", 1, NULL, 'n'},
 234         {"stream-name", 1, NULL, ARG_STREAM_NAME},
 235         {"version",     0, NULL, ARG_VERSION},
 236         {"help",        0, NULL, 'h'},
 237         {"verbose",     0, NULL, 'v'},
 238         {"volume",      1, NULL, ARG_VOLUME},
 239         {"channel-map", 1, NULL, ARG_CHANNELMAP},
 240         {NULL,          0, NULL, 0}
 241     };
 242
 243     setlocale(LC_ALL, "");
 244
 245     if (!(bn = strrchr(argv[0], '/')))
 246         bn = argv[0];
 247     else
 248         bn++;
 249
 250     while ((c = getopt_long(argc, argv, "d:s:n:hv", long_options, NULL)) != -1) {
 251
 252         switch (c) {
 253             case 'h' :
 254                 help(bn);
 255                 ret = 0;
 256                 goto quit;
 257
 258             case ARG_VERSION:
 259                 printf("paplay "PACKAGE_VERSION"\nCompiled with libpulse %s\nLinked with libpulse %s\n", pa_get_headers_version(), pa_get_library_version());
 260                 ret = 0;
 261                 goto quit;
 262
 263             case 'd':
 264                 pa_xfree(device);
 265                 device = pa_xstrdup(optarg);
 266                 break;
 267
 268             case 's':
 269                 pa_xfree(server);
 270                 server = pa_xstrdup(optarg);
 271                 break;
 272
 273             case 'n':
 274                 pa_xfree(client_name);
 275                 client_name = pa_xstrdup(optarg);
 276                 break;
 277
 278             case ARG_STREAM_NAME:
 279                 pa_xfree(stream_name);
 280                 stream_name = pa_xstrdup(optarg);
 281                 break;
 282
 283             case 'v':
 284                 verbose = 1;
 285                 break;
 286
 287             case ARG_VOLUME: {
 288                 int v = atoi(optarg);
 289                 volume = v < 0 ? 0 : v;
 290                 break;
 291             }
 292
 293             case ARG_CHANNELMAP:
 294                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 295                     fprintf(stderr, "Invalid channel map\n");
 296                     goto quit;
 297                 }
 298
 299                 channel_map_set = 1;
 300                 break;
 301
 302             default:
 303                 goto quit;
 304         }
 305     }
 306
 307     filename = optind < argc ? argv[optind] : "STDIN";
 308
 309     memset(&sfinfo, 0, sizeof(sfinfo));
 310
 311     if (optind < argc)
 312         sndfile = sf_open(filename, SFM_READ, &sfinfo);
 313     else
 314         sndfile = sf_open_fd(STDIN_FILENO, SFM_READ, &sfinfo, 0);
 315
 316     if (!sndfile) {
 317         fprintf(stderr, "Failed to open file '%s'\n", filename);
 318         goto quit;
 319     }
 320
 321     sample_spec.rate = sfinfo.samplerate;
 322     sample_spec.channels = sfinfo.channels;
 323
 324     readf_function = NULL;
 325
 326     switch (sfinfo.format & 0xFF) {
 327         case SF_FORMAT_PCM_16:
 328         case SF_FORMAT_PCM_U8:
 329         case SF_FORMAT_PCM_S8:
 330             sample_spec.format = PA_SAMPLE_S16NE;
 331             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_short;
 332             break;
 333
 334         case SF_FORMAT_ULAW:
 335             sample_spec.format = PA_SAMPLE_ULAW;
 336             break;
 337
 338         case SF_FORMAT_ALAW:
 339             sample_spec.format = PA_SAMPLE_ALAW;
 340             break;
 341
 342         case SF_FORMAT_FLOAT:
 343         case SF_FORMAT_DOUBLE:
 344         default:
 345             sample_spec.format = PA_SAMPLE_FLOAT32NE;
 346             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_float;
 347             break;
 348     }
 349
 350     assert(pa_sample_spec_valid(&sample_spec));
 351
 352     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 353         fprintf(stderr, "Channel map doesn't match file.\n");
 354         goto quit;
 355     }
 356
 357     if (!client_name) {
 358         client_name = pa_locale_to_utf8(bn);
 359         if (!client_name)
 360             client_name = pa_utf8_filter(bn);
 361     }
 362
 363     if (!stream_name) {
 364         const char *n;
 365
 366         n = sf_get_string(sndfile, SF_STR_TITLE);
 367
 368         if (!n)
 369             n = filename;
 370
 371         stream_name = pa_locale_to_utf8(n);
 372         if (!stream_name)
 373             stream_name = pa_utf8_filter(n);
 374     }
 375
 376     if (verbose) {
 377         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 378         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 379         fprintf(stderr, "Using sample spec '%s'\n", t);
 380     }
 381
 382     /* Set up a new main loop */
 383     if (!(m = pa_mainloop_new())) {
 384         fprintf(stderr, "pa_mainloop_new() failed.\n");
 385         goto quit;
 386     }
 387
 388     mainloop_api = pa_mainloop_get_api(m);
 389
 390     r = pa_signal_init(mainloop_api);
 391     assert(r == 0);
 392     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 393 #ifdef SIGPIPE
 394     signal(SIGPIPE, SIG_IGN);
 395 #endif
 396
 397     /* Create a new connection context */
 398     if (!(context = pa_context_new(mainloop_api, client_name))) {
 399         fprintf(stderr, "pa_context_new() failed.\n");
 400         goto quit;
 401     }
 402
 403     pa_context_set_state_callback(context, context_state_callback, NULL);
 404
 405     /* Connect the context */
 406     pa_context_connect(context, server, 0, NULL);
 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 }