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
  41 #if PA_API_VERSION < 9
  42 #error Invalid PulseAudio API version
  43 #endif
  44
  45 static pa_context *context = NULL;
  46 static pa_stream *stream = NULL;
  47 static pa_mainloop_api *mainloop_api = NULL;
  48
  49 static char *stream_name = NULL, *client_name = NULL, *device = NULL;
  50
  51 static int verbose = 0;
  52 static pa_volume_t volume = PA_VOLUME_NORM;
  53
  54 static SNDFILE* sndfile = NULL;
  55
  56 static pa_sample_spec sample_spec = { 0, 0, 0 };
  57 static pa_channel_map channel_map;
  58 static int channel_map_set = 0;
  59
  60 static sf_count_t (*readf_function)(SNDFILE *_sndfile, void *ptr, sf_count_t frames) = NULL;
  61
  62 /* A shortcut for terminating the application */
  63 static void quit(int ret) {
  64     assert(mainloop_api);
  65     mainloop_api->quit(mainloop_api, ret);
  66 }
  67
  68 /* Connection draining complete */
  69 static void context_drain_complete(pa_context*c, void *userdata) {
  70     pa_context_disconnect(c);
  71 }
  72
  73 /* Stream draining complete */
  74 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
  75     pa_operation *o;
  76
  77     if (!success) {
  78         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
  79         quit(1);
  80     }
  81
  82     if (verbose)
  83         fprintf(stderr, "Playback stream drained.\n");
  84
  85     pa_stream_disconnect(stream);
  86     pa_stream_unref(stream);
  87     stream = NULL;
  88
  89     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
  90         pa_context_disconnect(context);
  91     else {
  92         pa_operation_unref(o);
  93
  94         if (verbose)
  95             fprintf(stderr, "Draining connection to server.\n");
  96     }
  97 }
  98
  99 /* This is called whenever new data may be written to the stream */
 100 static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
 101     sf_count_t bytes;
 102     void *data;
 103     assert(s && length);
 104
 105     if (!sndfile)
 106         return;
 107
 108     data = pa_xmalloc(length);
 109
 110     if (readf_function) {
 111         size_t k = pa_frame_size(&sample_spec);
 112
 113         if ((bytes = readf_function(sndfile, data, length/k)) > 0)
 114             bytes *= k;
 115
 116     } else
 117         bytes = sf_read_raw(sndfile, data, length);
 118
 119     if (bytes > 0)
 120         pa_stream_write(s, data, bytes, pa_xfree, 0, PA_SEEK_RELATIVE);
 121     else
 122         pa_xfree(data);
 123
 124     if (bytes < (sf_count_t) length) {
 125         sf_close(sndfile);
 126         sndfile = NULL;
 127         pa_operation_unref(pa_stream_drain(s, stream_drain_complete, NULL));
 128     }
 129 }
 130
 131 /* This routine is called whenever the stream state changes */
 132 static void stream_state_callback(pa_stream *s, void *userdata) {
 133     assert(s);
 134
 135     switch (pa_stream_get_state(s)) {
 136         case PA_STREAM_CREATING:
 137         case PA_STREAM_TERMINATED:
 138             break;
 139
 140         case PA_STREAM_READY:
 141             if (verbose)
 142                 fprintf(stderr, "Stream successfully created\n");
 143             break;
 144
 145         case PA_STREAM_FAILED:
 146         default:
 147             fprintf(stderr, "Stream errror: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 148             quit(1);
 149     }
 150 }
 151
 152 /* This is called whenever the context status changes */
 153 static void context_state_callback(pa_context *c, void *userdata) {
 154     assert(c);
 155
 156     switch (pa_context_get_state(c)) {
 157         case PA_CONTEXT_CONNECTING:
 158         case PA_CONTEXT_AUTHORIZING:
 159         case PA_CONTEXT_SETTING_NAME:
 160             break;
 161
 162         case PA_CONTEXT_READY: {
 163             pa_cvolume cv;
 164
 165             assert(c && !stream);
 166
 167             if (verbose)
 168                 fprintf(stderr, "Connection established.\n");
 169
 170             stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL);
 171             assert(stream);
 172
 173             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 174             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 175             pa_stream_connect_playback(stream, device, NULL, 0, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL);
 176
 177             break;
 178         }
 179
 180         case PA_CONTEXT_TERMINATED:
 181             quit(0);
 182             break;
 183
 184         case PA_CONTEXT_FAILED:
 185         default:
 186             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 187             quit(1);
 188     }
 189 }
 190
 191 /* UNIX signal to quit recieved */
 192 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 193     if (verbose)
 194         fprintf(stderr, "Got SIGINT, exiting.\n");
 195     quit(0);
 196
 197 }
 198
 199 static void help(const char *argv0) {
 200
 201     printf("%s [options] [FILE]\n\n"
 202            "  -h, --help                            Show this help\n"
 203            "      --version                         Show version\n\n"
 204            "  -v, --verbose                         Enable verbose operation\n\n"
 205            "  -s, --server=SERVER                   The name of the server to connect to\n"
 206            "  -d, --device=DEVICE                   The name of the sink to connect to\n"
 207            "  -n, --client-name=NAME                How to call this client on the server\n"
 208            "      --stream-name=NAME                How to call this stream on the server\n"
 209            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 210            "      --channel-map=CHANNELMAP          Set the channel map to the use\n",
 211            argv0);
 212 }
 213
 214 enum {
 215     ARG_VERSION = 256,
 216     ARG_STREAM_NAME,
 217     ARG_VOLUME,
 218     ARG_CHANNELMAP
 219 };
 220
 221 int main(int argc, char *argv[]) {
 222     pa_mainloop* m = NULL;
 223     int ret = 1, r, c;
 224     char *bn, *server = NULL;
 225     const char *filename;
 226     SF_INFO sfinfo;
 227
 228     static const struct option long_options[] = {
 229         {"device",      1, NULL, 'd'},
 230         {"server",      1, NULL, 's'},
 231         {"client-name", 1, NULL, 'n'},
 232         {"stream-name", 1, NULL, ARG_STREAM_NAME},
 233         {"version",     0, NULL, ARG_VERSION},
 234         {"help",        0, NULL, 'h'},
 235         {"verbose",     0, NULL, 'v'},
 236         {"volume",      1, NULL, ARG_VOLUME},
 237         {"channel-map", 1, NULL, ARG_CHANNELMAP},
 238         {NULL,          0, NULL, 0}
 239     };
 240
 241     setlocale(LC_ALL, "");
 242
 243     if (!(bn = strrchr(argv[0], '/')))
 244         bn = argv[0];
 245     else
 246         bn++;
 247
 248     while ((c = getopt_long(argc, argv, "d:s:n:hv", long_options, NULL)) != -1) {
 249
 250         switch (c) {
 251             case 'h' :
 252                 help(bn);
 253                 ret = 0;
 254                 goto quit;
 255
 256             case ARG_VERSION:
 257                 printf("paplay "PACKAGE_VERSION"\nCompiled with libpulse %s\nLinked with libpulse %s\n", pa_get_headers_version(), pa_get_library_version());
 258                 ret = 0;
 259                 goto quit;
 260
 261             case 'd':
 262                 pa_xfree(device);
 263                 device = pa_xstrdup(optarg);
 264                 break;
 265
 266             case 's':
 267                 pa_xfree(server);
 268                 server = pa_xstrdup(optarg);
 269                 break;
 270
 271             case 'n':
 272                 pa_xfree(client_name);
 273                 client_name = pa_xstrdup(optarg);
 274                 break;
 275
 276             case ARG_STREAM_NAME:
 277                 pa_xfree(stream_name);
 278                 stream_name = pa_xstrdup(optarg);
 279                 break;
 280
 281             case 'v':
 282                 verbose = 1;
 283                 break;
 284
 285             case ARG_VOLUME: {
 286                 int v = atoi(optarg);
 287                 volume = v < 0 ? 0 : v;
 288                 break;
 289             }
 290
 291             case ARG_CHANNELMAP:
 292                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 293                     fprintf(stderr, "Invalid channel map\n");
 294                     goto quit;
 295                 }
 296
 297                 channel_map_set = 1;
 298                 break;
 299
 300             default:
 301                 goto quit;
 302         }
 303     }
 304
 305     filename = optind < argc ? argv[optind] : "STDIN";
 306
 307     memset(&sfinfo, 0, sizeof(sfinfo));
 308
 309     if (optind < argc)
 310         sndfile = sf_open(filename, SFM_READ, &sfinfo);
 311     else
 312         sndfile = sf_open_fd(STDIN_FILENO, SFM_READ, &sfinfo, 0);
 313
 314     if (!sndfile) {
 315         fprintf(stderr, "Failed to open file '%s'\n", filename);
 316         goto quit;
 317     }
 318
 319     sample_spec.rate = sfinfo.samplerate;
 320     sample_spec.channels = sfinfo.channels;
 321
 322     readf_function = NULL;
 323
 324     switch (sfinfo.format & 0xFF) {
 325         case SF_FORMAT_PCM_16:
 326         case SF_FORMAT_PCM_U8:
 327         case SF_FORMAT_PCM_S8:
 328             sample_spec.format = PA_SAMPLE_S16NE;
 329             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_short;
 330             break;
 331
 332         case SF_FORMAT_ULAW:
 333             sample_spec.format = PA_SAMPLE_ULAW;
 334             break;
 335
 336         case SF_FORMAT_ALAW:
 337             sample_spec.format = PA_SAMPLE_ALAW;
 338             break;
 339
 340         case SF_FORMAT_FLOAT:
 341         case SF_FORMAT_DOUBLE:
 342         default:
 343             sample_spec.format = PA_SAMPLE_FLOAT32NE;
 344             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_float;
 345             break;
 346     }
 347
 348     assert(pa_sample_spec_valid(&sample_spec));
 349
 350     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 351         fprintf(stderr, "Channel map doesn't match file.\n");
 352         goto quit;
 353     }
 354
 355     if (!client_name) {
 356         client_name = pa_locale_to_utf8(bn);
 357         if (!client_name)
 358             client_name = pa_utf8_filter(bn);
 359     }
 360
 361     if (!stream_name) {
 362         const char *n;
 363
 364         n = sf_get_string(sndfile, SF_STR_TITLE);
 365
 366         if (!n)
 367             n = filename;
 368
 369         stream_name = pa_locale_to_utf8(n);
 370         if (!stream_name)
 371             stream_name = pa_utf8_filter(n);
 372     }
 373
 374     if (verbose) {
 375         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 376         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 377         fprintf(stderr, "Using sample spec '%s'\n", t);
 378     }
 379
 380     /* Set up a new main loop */
 381     if (!(m = pa_mainloop_new())) {
 382         fprintf(stderr, "pa_mainloop_new() failed.\n");
 383         goto quit;
 384     }
 385
 386     mainloop_api = pa_mainloop_get_api(m);
 387
 388     r = pa_signal_init(mainloop_api);
 389     assert(r == 0);
 390     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 391 #ifdef SIGPIPE
 392     signal(SIGPIPE, SIG_IGN);
 393 #endif
 394
 395     /* Create a new connection context */
 396     if (!(context = pa_context_new(mainloop_api, client_name))) {
 397         fprintf(stderr, "pa_context_new() failed.\n");
 398         goto quit;
 399     }
 400
 401     pa_context_set_state_callback(context, context_state_callback, NULL);
 402
 403     /* Connect the context */
 404     pa_context_connect(context, server, 0, NULL);
 405
 406     /* Run the main loop */
 407     if (pa_mainloop_run(m, &ret) < 0) {
 408         fprintf(stderr, "pa_mainloop_run() failed.\n");
 409         goto quit;
 410     }
 411
 412 quit:
 413     if (stream)
 414         pa_stream_unref(stream);
 415
 416     if (context)
 417         pa_context_unref(context);
 418
 419     if (m) {
 420         pa_signal_done();
 421         pa_mainloop_free(m);
 422     }
 423
 424     pa_xfree(server);
 425     pa_xfree(device);
 426     pa_xfree(client_name);
 427     pa_xfree(stream_name);
 428
 429     if (sndfile)
 430         sf_close(sndfile);
 431
 432     return ret;
 433 }