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 #include <polyp/mainloop.h>
  39 #include <polyp/mainloop-signal.h>
  40
  41 #if PA_API_VERSION != 8
  42 #error Invalid Polypaudio 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);
  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     size_t k;
 102     sf_count_t f, n;
 103     void *data;
 104     assert(s && length);
 105
 106     if (!sndfile)
 107         return;
 108
 109     k = pa_frame_size(&sample_spec);
 110
 111     data = malloc(length);
 112
 113     n = length/k;
 114
 115     f = readf_function(sndfile, data, n);
 116
 117     if (f > 0)
 118         pa_stream_write(s, data, f*k, free, 0, PA_SEEK_RELATIVE);
 119
 120     if (f < n) {
 121         sf_close(sndfile);
 122         sndfile = NULL;
 123         pa_operation_unref(pa_stream_drain(s, stream_drain_complete, NULL));
 124     }
 125 }
 126
 127 /* This routine is called whenever the stream state changes */
 128 static void stream_state_callback(pa_stream *s, void *userdata) {
 129     assert(s);
 130
 131     switch (pa_stream_get_state(s)) {
 132         case PA_STREAM_CREATING:
 133         case PA_STREAM_TERMINATED:
 134             break;
 135
 136         case PA_STREAM_READY:
 137             if (verbose)
 138                 fprintf(stderr, "Stream successfully created\n");
 139             break;
 140
 141         case PA_STREAM_FAILED:
 142         default:
 143             fprintf(stderr, "Stream errror: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 144             quit(1);
 145     }
 146 }
 147
 148 /* This is called whenever the context status changes */
 149 static void context_state_callback(pa_context *c, void *userdata) {
 150     assert(c);
 151
 152     switch (pa_context_get_state(c)) {
 153         case PA_CONTEXT_CONNECTING:
 154         case PA_CONTEXT_AUTHORIZING:
 155         case PA_CONTEXT_SETTING_NAME:
 156             break;
 157
 158         case PA_CONTEXT_READY: {
 159             pa_cvolume cv;
 160
 161             assert(c && !stream);
 162
 163             if (verbose)
 164                 fprintf(stderr, "Connection established.\n");
 165
 166             stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL);
 167             assert(stream);
 168
 169             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
 170             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
 171             pa_stream_connect_playback(stream, device, NULL, 0, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL);
 172
 173             break;
 174         }
 175
 176         case PA_CONTEXT_TERMINATED:
 177             quit(0);
 178             break;
 179
 180         case PA_CONTEXT_FAILED:
 181         default:
 182             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
 183             quit(1);
 184     }
 185 }
 186
 187 /* UNIX signal to quit recieved */
 188 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
 189     if (verbose)
 190         fprintf(stderr, "Got SIGINT, exiting.\n");
 191     quit(0);
 192
 193 }
 194
 195 static void help(const char *argv0) {
 196
 197     printf("%s [options] [FILE]\n\n"
 198            "  -h, --help                            Show this help\n"
 199            "      --version                         Show version\n\n"
 200            "  -v, --verbose                         Enable verbose operations\n\n"
 201            "  -s, --server=SERVER                   The name of the server to connect to\n"
 202            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
 203            "  -n, --client-name=NAME                How to call this client on the server\n"
 204            "      --stream-name=NAME                How to call this stream on the server\n"
 205            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
 206            "      --channel-map=CHANNELMAP          Set the channel map to the use\n",
 207            argv0);
 208 }
 209
 210 enum {
 211     ARG_VERSION = 256,
 212     ARG_STREAM_NAME,
 213     ARG_VOLUME,
 214     ARG_CHANNELMAP
 215 };
 216
 217 int main(int argc, char *argv[]) {
 218     pa_mainloop* m = NULL;
 219     int ret = 1, r, c;
 220     char *bn, *server = NULL;
 221     const char *filename;
 222     SF_INFO sfinfo;
 223
 224     static const struct option long_options[] = {
 225         {"device",      1, NULL, 'd'},
 226         {"server",      1, NULL, 's'},
 227         {"client-name", 1, NULL, 'n'},
 228         {"stream-name", 1, NULL, ARG_STREAM_NAME},
 229         {"version",     0, NULL, ARG_VERSION},
 230         {"help",        0, NULL, 'h'},
 231         {"verbose",     0, NULL, 'v'},
 232         {"volume",      1, NULL, ARG_VOLUME},
 233         {"channel-map", 1, NULL, ARG_CHANNELMAP},
 234         {NULL,          0, NULL, 0}
 235     };
 236
 237     if (!(bn = strrchr(argv[0], '/')))
 238         bn = argv[0];
 239     else
 240         bn++;
 241
 242     while ((c = getopt_long(argc, argv, "d:s:n:hv", long_options, NULL)) != -1) {
 243
 244         switch (c) {
 245             case 'h' :
 246                 help(bn);
 247                 ret = 0;
 248                 goto quit;
 249
 250             case ARG_VERSION:
 251                 printf("paplay "PACKAGE_VERSION"\nCompiled with libpolyp %s\nLinked with libpolyp %s\n", pa_get_headers_version(), pa_get_library_version());
 252                 ret = 0;
 253                 goto quit;
 254
 255             case 'd':
 256                 free(device);
 257                 device = strdup(optarg);
 258                 break;
 259
 260             case 's':
 261                 free(server);
 262                 server = strdup(optarg);
 263                 break;
 264
 265             case 'n':
 266                 free(client_name);
 267                 client_name = strdup(optarg);
 268                 break;
 269
 270             case ARG_STREAM_NAME:
 271                 free(stream_name);
 272                 stream_name = strdup(optarg);
 273                 break;
 274
 275             case 'v':
 276                 verbose = 1;
 277                 break;
 278
 279             case ARG_VOLUME: {
 280                 int v = atoi(optarg);
 281                 volume = v < 0 ? 0 : v;
 282                 break;
 283             }
 284
 285             case ARG_CHANNELMAP:
 286                 if (!pa_channel_map_parse(&channel_map, optarg)) {
 287                     fprintf(stderr, "Invalid channel map\n");
 288                     goto quit;
 289                 }
 290
 291                 channel_map_set = 1;
 292                 break;
 293
 294             default:
 295                 goto quit;
 296         }
 297     }
 298
 299
 300     filename = optind < argc ? argv[optind] : "STDIN";
 301
 302
 303     if (!client_name)
 304         client_name = strdup(bn);
 305
 306     if (!stream_name)
 307         stream_name = strdup(filename);
 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     switch (sfinfo.format & 0xFF) {
 325         case SF_FORMAT_PCM_16:
 326         case SF_FORMAT_PCM_U8:
 327         case SF_FORMAT_ULAW:
 328         case SF_FORMAT_ALAW:
 329             sample_spec.format = PA_SAMPLE_S16NE;
 330             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_short;
 331             break;
 332         case SF_FORMAT_FLOAT:
 333         default:
 334             sample_spec.format = PA_SAMPLE_FLOAT32NE;
 335             readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_float;
 336             break;
 337     }
 338
 339     assert(pa_sample_spec_valid(&sample_spec));
 340
 341     if (channel_map_set && channel_map.channels != sample_spec.channels) {
 342         fprintf(stderr, "Channel map doesn't match file.\n");
 343         goto quit;
 344     }
 345
 346     if (verbose) {
 347         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 348         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
 349         fprintf(stderr, "Using sample spec '%s'\n", t);
 350     }
 351
 352     /* Set up a new main loop */
 353     if (!(m = pa_mainloop_new())) {
 354         fprintf(stderr, "pa_mainloop_new() failed.\n");
 355         goto quit;
 356     }
 357
 358     mainloop_api = pa_mainloop_get_api(m);
 359
 360     r = pa_signal_init(mainloop_api);
 361     assert(r == 0);
 362     pa_signal_new(SIGINT, exit_signal_callback, NULL);
 363 #ifdef SIGPIPE
 364     signal(SIGPIPE, SIG_IGN);
 365 #endif
 366
 367     /* Create a new connection context */
 368     if (!(context = pa_context_new(mainloop_api, client_name))) {
 369         fprintf(stderr, "pa_context_new() failed.\n");
 370         goto quit;
 371     }
 372
 373     pa_context_set_state_callback(context, context_state_callback, NULL);
 374
 375     /* Connect the context */
 376     pa_context_connect(context, server, 0, NULL);
 377
 378     /* Run the main loop */
 379     if (pa_mainloop_run(m, &ret) < 0) {
 380         fprintf(stderr, "pa_mainloop_run() failed.\n");
 381         goto quit;
 382     }
 383
 384 quit:
 385     if (stream)
 386         pa_stream_unref(stream);
 387
 388     if (context)
 389         pa_context_unref(context);
 390
 391     if (m) {
 392         pa_signal_done();
 393         pa_mainloop_free(m);
 394     }
 395
 396     free(server);
 397     free(device);
 398     free(client_name);
 399     free(stream_name);
 400
 401     if (sndfile)
 402         sf_close(sndfile);
 403
 404     return ret;
 405 }