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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio 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   polypaudio 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 polypaudio; 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
  35 #include <sndfile.h>
  36
  37 #include <polyp/polypaudio.h>
  38
  39 #if PA_API_VERSION != 9
  40 #error Invalid Polypaudio API version
  41 #endif
  42
  43 static pa_context *context = NULL;
  44 static pa_stream *stream = NULL;
  45 static pa_mainloop_api *mainloop_api = NULL;
  46
  47 static char *stream_name = NULL, *client_name = NULL, *device = NULL;
  48
  49 static int verbose = 0;
  50 static pa_volume_t volume = PA_VOLUME_NORM;
  51
  52 static SNDFILE* sndfile = NULL;
  53
  54 static pa_sample_spec sample_spec = { 0, 0, 0 };
  55 static pa_channel_map channel_map;
  56 static int channel_map_set = 0;
  57
  58 static sf_count_t (*readf_function)(SNDFILE *_sndfile, void *ptr, sf_count_t frames) = NULL;
  59
  60 /* A shortcut for terminating the application */
  61 static void quit(int ret) {
  62     assert(mainloop_api);
  63     mainloop_api->quit(mainloop_api, ret);
  64 }
  65
  66 /* Connection draining complete */
  67 static void context_drain_complete(pa_context*c, void *userdata) {
  68     pa_context_disconnect(c);
  69 }
  70
  71 /* Stream draining complete */
  72 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
  73     pa_operation *o;
  74
  75     if (!success) {
  76         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
  77         quit(1);
  78     }
  79
  80     if (verbose)
  81         fprintf(stderr, "Playback stream drained.\n");
  82
  83     pa_stream_disconnect(stream);
  84     pa_stream_unref(stream);
  85     stream = NULL;
  86
  87     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
  88         pa_context_disconnect(context);
  89     else {
  90         pa_operation_unref(o);
  91
  92         if (verbose)
  93             fprintf(stderr, "Draining connection to server.\n");
  94     }
  95 }
  96
  97 /* This is called whenever new data may be written to the stream */
  98 static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
  99     sf_count_t bytes;
 100     void *data;
 101     assert(s && length);
 102
 103     if (!sndfile)
 104         return;
 105
 106     data = pa_xmalloc(length);
 107
 108     if (readf_function) {
 109         size_t k = pa_frame_size(&sample_spec);
 110
 111         if ((bytes = readf_function(sndfile, data, length/k)) > 0)
 112             bytes *= k;
 113
 114     } else
 115         bytes = sf_read_raw(sndfile, data, length);
 116
 117     if (bytes > 0)
 118         pa_stream_write(s, data, bytes, pa_xfree, 0, PA_SEEK_RELATIVE);
 119     else
 120         pa_xfree(data);
 121
 122     if (bytes < length) {
 123         sf_close(sndfile);
 124         sndfile = NULL;
 125         pa_operation_unref(pa_stream_drain(s, stream_drain_complete, NULL));
 126     }
 127 }
 128
 129 /* This routine is called whenever the stream state changes */
 130 static void stream_state_callback(pa_stream *s, void *userdata) {
 131     assert(s);
 132
 133     switch (pa_stream_get_state(s)) {
 134         case PA_STREAM_CREATING:
 135         case PA_STREAM_TERMINATED:
 136             break;
 137
 138         case PA_STREAM_READY:
 139             if (verbose)
 140                 fprintf(stderr, "Stream successfully created\n");
 141             break;
 142
 143         case PA_STREAM_FAILED:
 144         default:
 145             fprintf(stderr, "Stream errror: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 146             quit(1);
 147     }
 148 }
 149
 150 /* This is called whenever the context status changes */
 151 static void context_state_callback(pa_context *c, void *userdata) {
 152     assert(c);
 153
 154     switch (pa_context_get_state(c)) {
 155         case PA_CONTEXT_CONNECTING:
 156         case PA_CONTEXT_AUTHORIZING:
 157         case PA_CONTEXT_SETTING_NAME:
 158             break;
 159
 160         case PA_CONTEXT_READY: {
 161             pa_cvolume cv;
 162
 163             assert(c && !stream);
 164
 165             if (verbose)
 166                 fprintf(stderr, "Connection established.\n");
 167
 168             stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL);
 169             assert(stream);
 170
 171             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 172             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 173             pa_stream_connect_playback(stream, device, NULL, 0, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL);
 174
 175             break;
 176         }
 177
 178         case PA_CONTEXT_TERMINATED:
 179             quit(0);
 180             break;
 181
 182         case PA_CONTEXT_FAILED:
 183         default:
 184             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 185             quit(1);
 186     }
 187 }
 188
 189 /* UNIX signal to quit recieved */
 190 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 191     if (verbose)
 192         fprintf(stderr, "Got SIGINT, exiting.\n");
 193     quit(0);
 194
 195 }
 196
 197 static void help(const char *argv0) {
 198
 199     printf("%s [options] [FILE]\n\n"
 200            "  -h, --help                            Show this help\n"
 201            "      --version                         Show version\n\n"
 202            "  -v, --verbose                         Enable verbose operations\n\n"
 203            "  -s, --server=SERVER                   The name of the server to connect to\n"
 204            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
 205            "  -n, --client-name=NAME                How to call this client on the server\n"
 206            "      --stream-name=NAME                How to call this stream on the server\n"
 207            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 208            "      --channel-map=CHANNELMAP          Set the channel map to the use\n",
 209            argv0);
 210 }
 211
 212 enum {
 213     ARG_VERSION = 256,
 214     ARG_STREAM_NAME,
 215     ARG_VOLUME,
 216     ARG_CHANNELMAP
 217 };
 218
 219 int main(int argc, char *argv[]) {
 220     pa_mainloop* m = NULL;
 221     int ret = 1, r, c;
 222     char *bn, *server = NULL;
 223     const char *filename;
 224     SF_INFO sfinfo;
 225
 226     static const struct option long_options[] = {
 227         {"device",      1, NULL, 'd'},
 228         {"server",      1, NULL, 's'},
 229         {"client-name", 1, NULL, 'n'},
 230         {"stream-name", 1, NULL, ARG_STREAM_NAME},
 231         {"version",     0, NULL, ARG_VERSION},
 232         {"help",        0, NULL, 'h'},
 233         {"verbose",     0, NULL, 'v'},
 234         {"volume",      1, NULL, ARG_VOLUME},
 235         {"channel-map", 1, NULL, ARG_CHANNELMAP},
 236         {NULL,          0, NULL, 0}
 237     };
 238
 239     if (!(bn = strrchr(argv[0], '/')))
 240         bn = argv[0];
 241     else
 242         bn++;
 243
 244     while ((c = getopt_long(argc, argv, "d:s:n:hv", long_options, NULL)) != -1) {
 245
 246         switch (c) {
 247             case 'h' :
 248                 help(bn);
 249                 ret = 0;
 250                 goto quit;
 251
 252             case ARG_VERSION:
 253                 printf("paplay "PACKAGE_VERSION"\nCompiled with libpolyp %s\nLinked with libpolyp %s\n", pa_get_headers_version(), pa_get_library_version());
 254                 ret = 0;
 255                 goto quit;
 256
 257             case 'd':
 258                 pa_xfree(device);
 259                 device = pa_xstrdup(optarg);
 260                 break;
 261
 262             case 's':
 263                 pa_xfree(server);
 264                 server = pa_xstrdup(optarg);
 265                 break;
 266
 267             case 'n':
 268                 pa_xfree(client_name);
 269                 client_name = pa_xstrdup(optarg);
 270                 break;
 271
 272             case ARG_STREAM_NAME:
 273                 pa_xfree(stream_name);
 274                 stream_name = pa_xstrdup(optarg);
 275                 break;
 276
 277             case 'v':
 278                 verbose = 1;
 279                 break;
 280
 281             case ARG_VOLUME: {
 282                 int v = atoi(optarg);
 283                 volume = v < 0 ? 0 : v;
 284                 break;
 285             }
 286
 287             case ARG_CHANNELMAP:
 288                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 289                     fprintf(stderr, "Invalid channel map\n");
 290                     goto quit;
 291                 }
 292
 293                 channel_map_set = 1;
 294                 break;
 295
 296             default:
 297                 goto quit;
 298         }
 299     }
 300
 301     filename = optind < argc ? argv[optind] : "STDIN";
 302
 303     memset(&sfinfo, 0, sizeof(sfinfo));
 304
 305     if (optind < argc)
 306         sndfile = sf_open(filename, SFM_READ, &sfinfo);
 307     else
 308         sndfile = sf_open_fd(STDIN_FILENO, SFM_READ, &sfinfo, 0);
 309
 310     if (!sndfile) {
 311         fprintf(stderr, "Failed to open file '%s'\n", filename);
 312         goto quit;
 313     }
 314
 315     sample_spec.rate = sfinfo.samplerate;
 316     sample_spec.channels = sfinfo.channels;
 317
 318     readf_function = NULL;
 319
 320     switch (sfinfo.format & 0xFF) {
 321         case SF_FORMAT_PCM_16:
 322         case SF_FORMAT_PCM_U8:
 323         case SF_FORMAT_PCM_S8:
 324             sample_spec.format = PA_SAMPLE_S16NE;
 325             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_short;
 326             break;
 327
 328         case SF_FORMAT_ULAW:
 329             sample_spec.format = PA_SAMPLE_ULAW;
 330             break;
 331
 332         case SF_FORMAT_ALAW:
 333             sample_spec.format = PA_SAMPLE_ALAW;
 334             break;
 335
 336         case SF_FORMAT_FLOAT:
 337         case SF_FORMAT_DOUBLE:
 338         default:
 339             sample_spec.format = PA_SAMPLE_FLOAT32NE;
 340             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_float;
 341             break;
 342     }
 343
 344     assert(pa_sample_spec_valid(&sample_spec));
 345
 346     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 347         fprintf(stderr, "Channel map doesn't match file.\n");
 348         goto quit;
 349     }
 350
 351     if (!client_name)
 352         client_name = pa_xstrdup(bn);
 353
 354     if (!stream_name) {
 355         const char *n = sf_get_string(sndfile, SF_STR_TITLE);
 356         stream_name = pa_xstrdup(n ? n : filename);
 357     }
 358
 359     if (verbose) {
 360         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 361         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 362         fprintf(stderr, "Using sample spec '%s'\n", t);
 363     }
 364
 365     /* Set up a new main loop */
 366     if (!(m = pa_mainloop_new())) {
 367         fprintf(stderr, "pa_mainloop_new() failed.\n");
 368         goto quit;
 369     }
 370
 371     mainloop_api = pa_mainloop_get_api(m);
 372
 373     r = pa_signal_init(mainloop_api);
 374     assert(r == 0);
 375     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 376 #ifdef SIGPIPE
 377     signal(SIGPIPE, SIG_IGN);
 378 #endif
 379
 380     /* Create a new connection context */
 381     if (!(context = pa_context_new(mainloop_api, client_name))) {
 382         fprintf(stderr, "pa_context_new() failed.\n");
 383         goto quit;
 384     }
 385
 386     pa_context_set_state_callback(context, context_state_callback, NULL);
 387
 388     /* Connect the context */
 389     pa_context_connect(context, server, 0, NULL);
 390
 391     /* Run the main loop */
 392     if (pa_mainloop_run(m, &ret) < 0) {
 393         fprintf(stderr, "pa_mainloop_run() failed.\n");
 394         goto quit;
 395     }
 396
 397 quit:
 398     if (stream)
 399         pa_stream_unref(stream);
 400
 401     if (context)
 402         pa_context_unref(context);
 403
 404     if (m) {
 405         pa_signal_done();
 406         pa_mainloop_free(m);
 407     }
 408
 409     pa_xfree(server);
 410     pa_xfree(device);
 411     pa_xfree(client_name);
 412     pa_xfree(stream_name);
 413
 414     if (sndfile)
 415         sf_close(sndfile);
 416
 417     return ret;
 418 }