pacat.c

A playback and recording tool using the asynchronous API

00001 /* $Id: pacat.c 1179 2006-08-01 21:04:43Z lennart $ */
00002 
00003 /***
00004   This file is part of PulseAudio.
00005  
00006   PulseAudio is free software; you can redistribute it and/or modify
00007   it under the terms of the GNU Lesser General Public License as published
00008   by the Free Software Foundation; either version 2 of the License,
00009   or (at your option) any later version.
00010  
00011   PulseAudio is distributed in the hope that it will be useful, but
00012   WITHOUT ANY WARRANTY; without even the implied warranty of
00013   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00014   General Public License for more details.
00015  
00016   You should have received a copy of the GNU Lesser General Public License
00017   along with PulseAudio; if not, write to the Free Software
00018   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00019   USA.
00020 ***/
00021 
00022 #ifdef HAVE_CONFIG_H
00023 #include <config.h>
00024 #endif
00025 
00026 #include <signal.h>
00027 #include <string.h>
00028 #include <errno.h>
00029 #include <unistd.h>
00030 #include <assert.h>
00031 #include <stdio.h>
00032 #include <stdlib.h>
00033 #include <getopt.h>
00034 #include <fcntl.h>
00035 
00036 #include <pulse/pulseaudio.h>
00037 
00038 #define TIME_EVENT_USEC 50000
00039 
00040 #if PA_API_VERSION < 9
00041 #error Invalid PulseAudio API version
00042 #endif
00043 
00044 static enum { RECORD, PLAYBACK } mode = PLAYBACK;
00045 
00046 static pa_context *context = NULL;
00047 static pa_stream *stream = NULL;
00048 static pa_mainloop_api *mainloop_api = NULL;
00049 
00050 static void *buffer = NULL;
00051 static size_t buffer_length = 0, buffer_index = 0;
00052 
00053 static pa_io_event* stdio_event = NULL;
00054 
00055 static char *stream_name = NULL, *client_name = NULL, *device = NULL;
00056 
00057 static int verbose = 0;
00058 static pa_volume_t volume = PA_VOLUME_NORM;
00059 
00060 static pa_sample_spec sample_spec = {
00061     .format = PA_SAMPLE_S16LE,
00062     .rate = 44100,
00063     .channels = 2
00064 };
00065 
00066 static pa_channel_map channel_map;
00067 static int channel_map_set = 0;
00068 
00069 /* A shortcut for terminating the application */
00070 static void quit(int ret) {
00071     assert(mainloop_api);
00072     mainloop_api->quit(mainloop_api, ret);
00073 }
00074 
00075 /* Write some data to the stream */
00076 static void do_stream_write(size_t length) {
00077     size_t l;
00078     assert(length);
00079 
00080     if (!buffer || !buffer_length)
00081         return;
00082     
00083     l = length;
00084     if (l > buffer_length)
00085         l = buffer_length;
00086     
00087     if (pa_stream_write(stream, (uint8_t*) buffer + buffer_index, l, NULL, 0, PA_SEEK_RELATIVE) < 0) {
00088         fprintf(stderr, "pa_stream_write() failed: %s\n", pa_strerror(pa_context_errno(context)));
00089         quit(1);
00090         return;
00091     }
00092     
00093     buffer_length -= l;
00094     buffer_index += l;
00095     
00096     if (!buffer_length) {
00097         pa_xfree(buffer);
00098         buffer = NULL;
00099         buffer_index = buffer_length = 0;
00100     }
00101 }
00102 
00103 /* This is called whenever new data may be written to the stream */
00104 static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
00105     assert(s && length);
00106 
00107     if (stdio_event)
00108         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_INPUT);
00109 
00110     if (!buffer)
00111         return;
00112 
00113     do_stream_write(length);
00114 }
00115 
00116 /* This is called whenever new data may is available */
00117 static void stream_read_callback(pa_stream *s, size_t length, void *userdata) {
00118     const void *data;
00119     assert(s && length);
00120 
00121     if (stdio_event)
00122         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT);
00123 
00124     if (pa_stream_peek(s, &data, &length) < 0) {
00125         fprintf(stderr, "pa_stream_peek() failed: %s\n", pa_strerror(pa_context_errno(context)));
00126         quit(1);
00127         return;
00128     }
00129     
00130     assert(data && length);
00131 
00132     if (buffer) {
00133         fprintf(stderr, "Buffer overrun, dropping incoming data\n");
00134         if (pa_stream_drop(s) < 0) {
00135             fprintf(stderr, "pa_stream_drop() failed: %s\n", pa_strerror(pa_context_errno(context)));
00136             quit(1);
00137         }
00138         return;
00139     }
00140 
00141     buffer = pa_xmalloc(buffer_length = length);
00142     memcpy(buffer, data, length);
00143     buffer_index = 0;
00144     pa_stream_drop(s);
00145 }
00146 
00147 /* This routine is called whenever the stream state changes */
00148 static void stream_state_callback(pa_stream *s, void *userdata) {
00149     assert(s);
00150 
00151     switch (pa_stream_get_state(s)) {
00152         case PA_STREAM_CREATING:
00153         case PA_STREAM_TERMINATED:
00154             break;
00155 
00156         case PA_STREAM_READY:
00157             if (verbose) {
00158                 const pa_buffer_attr *a;
00159                 
00160                 fprintf(stderr, "Stream successfully created.\n");
00161 
00162                 if (!(a = pa_stream_get_buffer_attr(s)))
00163                     fprintf(stderr, "pa_stream_get_buffer_attr() failed: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
00164                 else {
00165 
00166                     if (mode == PLAYBACK)
00167                         fprintf(stderr, "Buffer metrics: maxlength=%u, tlength=%u, prebuf=%u, minreq=%u\n", a->maxlength, a->tlength, a->prebuf, a->minreq);
00168                     else {
00169                         assert(mode == RECORD);
00170                         fprintf(stderr, "Buffer metrics: maxlength=%u, fragsize=%u\n", a->maxlength, a->fragsize);
00171                     }
00172                     
00173                 }
00174 
00175             }
00176             
00177             break;
00178             
00179         case PA_STREAM_FAILED:
00180         default:
00181             fprintf(stderr, "Stream error: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
00182             quit(1);
00183     }
00184 }
00185 
00186 /* This is called whenever the context status changes */
00187 static void context_state_callback(pa_context *c, void *userdata) {
00188     assert(c);
00189 
00190     switch (pa_context_get_state(c)) {
00191         case PA_CONTEXT_CONNECTING:
00192         case PA_CONTEXT_AUTHORIZING:
00193         case PA_CONTEXT_SETTING_NAME:
00194             break;
00195         
00196         case PA_CONTEXT_READY: {
00197             int r;
00198             
00199             assert(c && !stream);
00200 
00201             if (verbose)
00202                 fprintf(stderr, "Connection established.\n");
00203 
00204             if (!(stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL))) {
00205                 fprintf(stderr, "pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(c)));
00206                 goto fail;
00207             }
00208 
00209             pa_stream_set_state_callback(stream, stream_state_callback, NULL);
00210             pa_stream_set_write_callback(stream, stream_write_callback, NULL);
00211             pa_stream_set_read_callback(stream, stream_read_callback, NULL);
00212 
00213             if (mode == PLAYBACK) {
00214                 pa_cvolume cv;
00215                 if ((r = pa_stream_connect_playback(stream, device, NULL, 0, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL)) < 0) {
00216                     fprintf(stderr, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c)));
00217                     goto fail;
00218                 }
00219                     
00220             } else {
00221                 if ((r = pa_stream_connect_record(stream, device, NULL, 0)) < 0) {
00222                     fprintf(stderr, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c)));
00223                     goto fail;
00224                 }
00225             }
00226                 
00227             break;
00228         }
00229             
00230         case PA_CONTEXT_TERMINATED:
00231             quit(0);
00232             break;
00233 
00234         case PA_CONTEXT_FAILED:
00235         default:
00236             fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
00237             goto fail;
00238     }
00239 
00240     return;
00241     
00242 fail:
00243     quit(1);
00244     
00245 }
00246 
00247 /* Connection draining complete */
00248 static void context_drain_complete(pa_context*c, void *userdata) {
00249     pa_context_disconnect(c);
00250 }
00251 
00252 /* Stream draining complete */
00253 static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
00254     pa_operation *o;
00255 
00256     if (!success) {
00257         fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
00258         quit(1);
00259     }
00260     
00261     if (verbose)    
00262         fprintf(stderr, "Playback stream drained.\n");
00263 
00264     pa_stream_disconnect(stream);
00265     pa_stream_unref(stream);
00266     stream = NULL;
00267     
00268     if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
00269         pa_context_disconnect(context);
00270     else {
00271         if (verbose)
00272             fprintf(stderr, "Draining connection to server.\n");
00273     }
00274 }
00275 
00276 /* New data on STDIN **/
00277 static void stdin_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
00278     size_t l, w = 0;
00279     ssize_t r;
00280     assert(a == mainloop_api && e && stdio_event == e);
00281 
00282     if (buffer) {
00283         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
00284         return;
00285     }
00286 
00287     if (!stream || pa_stream_get_state(stream) != PA_STREAM_READY || !(l = w = pa_stream_writable_size(stream)))
00288         l = 4096;
00289     
00290     buffer = pa_xmalloc(l);
00291 
00292     if ((r = read(fd, buffer, l)) <= 0) {
00293         if (r == 0) {
00294             if (verbose)
00295                 fprintf(stderr, "Got EOF.\n");
00296 
00297             if (stream) {
00298                 pa_operation *o;
00299             
00300                 if (!(o = pa_stream_drain(stream, stream_drain_complete, NULL))) {
00301                     fprintf(stderr, "pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(context)));
00302                     quit(1);
00303                     return;
00304                 }
00305                 
00306                 pa_operation_unref(o);
00307             } else
00308                 quit(0);
00309             
00310         } else {
00311             fprintf(stderr, "read() failed: %s\n", strerror(errno));
00312             quit(1);
00313         }
00314 
00315         mainloop_api->io_free(stdio_event);
00316         stdio_event = NULL;
00317         return;
00318     }
00319 
00320     buffer_length = r;
00321     buffer_index = 0;
00322 
00323     if (w)
00324         do_stream_write(w);
00325 }
00326 
00327 /* Some data may be written to STDOUT */
00328 static void stdout_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
00329     ssize_t r;
00330     assert(a == mainloop_api && e && stdio_event == e);
00331 
00332     if (!buffer) {
00333         mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
00334         return;
00335     }
00336 
00337     assert(buffer_length);
00338     
00339     if ((r = write(fd, (uint8_t*) buffer+buffer_index, buffer_length)) <= 0) {
00340         fprintf(stderr, "write() failed: %s\n", strerror(errno));
00341         quit(1);
00342 
00343         mainloop_api->io_free(stdio_event);
00344         stdio_event = NULL;
00345         return;
00346     }
00347 
00348     buffer_length -= r;
00349     buffer_index += r;
00350 
00351     if (!buffer_length) {
00352         pa_xfree(buffer);
00353         buffer = NULL;
00354         buffer_length = buffer_index = 0;
00355     }
00356 }
00357 
00358 /* UNIX signal to quit recieved */
00359 static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
00360     if (verbose)
00361         fprintf(stderr, "Got signal, exiting.\n");
00362     quit(0);
00363 }
00364 
00365 /* Show the current latency */
00366 static void stream_update_timing_callback(pa_stream *s, int success, void *userdata) {
00367     pa_usec_t latency, usec;
00368     int negative = 0;
00369     
00370     assert(s);
00371 
00372     if (!success ||
00373         pa_stream_get_time(s, &usec) < 0 ||
00374         pa_stream_get_latency(s, &latency, &negative) < 0) {
00375         fprintf(stderr, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context)));
00376         quit(1);
00377         return;
00378     }
00379 
00380     fprintf(stderr, "Time: %0.3f sec; Latency: %0.0f usec.  \r",
00381             (float) usec / 1000000,
00382             (float) latency * (negative?-1:1));
00383 }
00384 
00385 /* Someone requested that the latency is shown */
00386 static void sigusr1_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
00387 
00388     if (!stream)
00389         return;
00390     
00391     pa_operation_unref(pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL));
00392 }
00393 
00394 static void time_event_callback(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
00395     struct timeval next;
00396     
00397     if (stream && pa_stream_get_state(stream) == PA_STREAM_READY) {
00398         pa_operation *o;
00399         if (!(o = pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL)))
00400             fprintf(stderr, "pa_stream_update_timing_info() failed: %s\n", pa_strerror(pa_context_errno(context)));
00401         else
00402             pa_operation_unref(o);
00403     }
00404 
00405     pa_gettimeofday(&next);
00406     pa_timeval_add(&next, TIME_EVENT_USEC);
00407 
00408     m->time_restart(e, &next);
00409 }
00410 
00411 static void help(const char *argv0) {
00412 
00413     printf("%s [options]\n\n"
00414            "  -h, --help                            Show this help\n"
00415            "      --version                         Show version\n\n"
00416            "  -r, --record                          Create a connection for recording\n"
00417            "  -p, --playback                        Create a connection for playback\n\n"
00418            "  -v, --verbose                         Enable verbose operations\n\n"
00419            "  -s, --server=SERVER                   The name of the server to connect to\n"
00420            "  -d, --device=DEVICE                   The name of the sink/source to connect to\n"
00421            "  -n, --client-name=NAME                How to call this client on the server\n"
00422            "      --stream-name=NAME                How to call this stream on the server\n"
00423            "      --volume=VOLUME                   Specify the initial (linear) volume in range 0...65536\n"
00424            "      --rate=SAMPLERATE                 The sample rate in Hz (defaults to 44100)\n"
00425            "      --format=SAMPLEFORMAT             The sample type, one of s16le, s16be, u8, float32le,\n"
00426            "                                        float32be, ulaw, alaw (defaults to s16ne)\n"
00427            "      --channels=CHANNELS               The number of channels, 1 for mono, 2 for stereo\n"
00428            "                                        (defaults to 2)\n"
00429            "      --channel-map=CHANNELMAP          Channel map to use instead of the default\n",
00430            argv0);
00431 }
00432 
00433 enum {
00434     ARG_VERSION = 256,
00435     ARG_STREAM_NAME,
00436     ARG_VOLUME,
00437     ARG_SAMPLERATE,
00438     ARG_SAMPLEFORMAT,
00439     ARG_CHANNELS,
00440     ARG_CHANNELMAP,
00441 };
00442 
00443 int main(int argc, char *argv[]) {
00444     pa_mainloop* m = NULL;
00445     int ret = 1, r, c;
00446     char *bn, *server = NULL;
00447     pa_time_event *time_event = NULL;
00448 
00449     static const struct option long_options[] = {
00450         {"record",      0, NULL, 'r'},
00451         {"playback",    0, NULL, 'p'},
00452         {"device",      1, NULL, 'd'},
00453         {"server",      1, NULL, 's'},
00454         {"client-name", 1, NULL, 'n'},
00455         {"stream-name", 1, NULL, ARG_STREAM_NAME},
00456         {"version",     0, NULL, ARG_VERSION},
00457         {"help",        0, NULL, 'h'},
00458         {"verbose",     0, NULL, 'v'},
00459         {"volume",      1, NULL, ARG_VOLUME},
00460         {"rate",        1, NULL, ARG_SAMPLERATE},
00461         {"format",      1, NULL, ARG_SAMPLEFORMAT},
00462         {"channels",    1, NULL, ARG_CHANNELS},
00463         {"channel-map", 1, NULL, ARG_CHANNELMAP},
00464         {NULL,          0, NULL, 0}
00465     };
00466 
00467     if (!(bn = strrchr(argv[0], '/')))
00468         bn = argv[0];
00469     else
00470         bn++;
00471 
00472     if (strstr(bn, "rec") || strstr(bn, "mon"))
00473         mode = RECORD;
00474     else if (strstr(bn, "cat") || strstr(bn, "play"))
00475         mode = PLAYBACK;
00476 
00477     while ((c = getopt_long(argc, argv, "rpd:s:n:hv", long_options, NULL)) != -1) {
00478 
00479         switch (c) {
00480             case 'h' :
00481                 help(bn);
00482                 ret = 0;
00483                 goto quit;
00484                 
00485             case ARG_VERSION:
00486                 printf("pacat "PACKAGE_VERSION"\nCompiled with libpulse %s\nLinked with libpulse %s\n", pa_get_headers_version(), pa_get_library_version());
00487                 ret = 0;
00488                 goto quit;
00489 
00490             case 'r':
00491                 mode = RECORD;
00492                 break;
00493 
00494             case 'p':
00495                 mode = PLAYBACK;
00496                 break;
00497 
00498             case 'd':
00499                 pa_xfree(device);
00500                 device = pa_xstrdup(optarg);
00501                 break;
00502 
00503             case 's':
00504                 pa_xfree(server);
00505                 server = pa_xstrdup(optarg);
00506                 break;
00507 
00508             case 'n':
00509                 pa_xfree(client_name);
00510                 client_name = pa_xstrdup(optarg);
00511                 break;
00512 
00513             case ARG_STREAM_NAME:
00514                 pa_xfree(stream_name);
00515                 stream_name = pa_xstrdup(optarg);
00516                 break;
00517 
00518             case 'v':
00519                 verbose = 1;
00520                 break;
00521 
00522             case ARG_VOLUME: {
00523                 int v = atoi(optarg);
00524                 volume = v < 0 ? 0 : v;
00525                 break;
00526             }
00527 
00528             case ARG_CHANNELS: 
00529                 sample_spec.channels = atoi(optarg);
00530                 break;
00531 
00532             case ARG_SAMPLEFORMAT:
00533                 sample_spec.format = pa_parse_sample_format(optarg);
00534                 break;
00535 
00536             case ARG_SAMPLERATE:
00537                 sample_spec.rate = atoi(optarg);
00538                 break;
00539 
00540             case ARG_CHANNELMAP:
00541                 if (!pa_channel_map_parse(&channel_map, optarg)) {
00542                     fprintf(stderr, "Invalid channel map\n");
00543                     goto quit;
00544                 }
00545 
00546                 channel_map_set = 1;
00547                 break;
00548                 
00549             default:
00550                 goto quit;
00551         }
00552     }
00553 
00554     if (!pa_sample_spec_valid(&sample_spec)) {
00555         fprintf(stderr, "Invalid sample specification\n");
00556         goto quit;
00557     }
00558 
00559     if (channel_map_set && channel_map.channels != sample_spec.channels) {
00560         fprintf(stderr, "Channel map doesn't match sample specification\n");
00561         goto quit;
00562     }
00563     
00564     if (verbose) {
00565         char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
00566         pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
00567         fprintf(stderr, "Opening a %s stream with sample specification '%s'.\n", mode == RECORD ? "recording" : "playback", t);
00568     }
00569 
00570     if (!(optind >= argc)) {
00571         if (optind+1 == argc) {
00572             int fd;
00573             
00574             if ((fd = open(argv[optind], mode == PLAYBACK ? O_RDONLY : O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) {
00575                 fprintf(stderr, "open(): %s\n", strerror(errno));
00576                 goto quit;
00577             }
00578             
00579             if (dup2(fd, mode == PLAYBACK ? 0 : 1) < 0) {
00580                 fprintf(stderr, "dup2(): %s\n", strerror(errno));
00581                 goto quit;
00582             }
00583             
00584             close(fd);
00585 
00586             if (!stream_name)
00587                 stream_name = pa_xstrdup(argv[optind]);
00588             
00589         } else {
00590             fprintf(stderr, "Too many arguments.\n");
00591             goto quit;
00592         }
00593     }
00594 
00595     if (!client_name)
00596         client_name = pa_xstrdup(bn);
00597 
00598     if (!stream_name)
00599         stream_name = pa_xstrdup(client_name);
00600 
00601     /* Set up a new main loop */
00602     if (!(m = pa_mainloop_new())) {
00603         fprintf(stderr, "pa_mainloop_new() failed.\n");
00604         goto quit;
00605     }
00606 
00607     mainloop_api = pa_mainloop_get_api(m);
00608 
00609     r = pa_signal_init(mainloop_api);
00610     assert(r == 0);
00611     pa_signal_new(SIGINT, exit_signal_callback, NULL);
00612     pa_signal_new(SIGTERM, exit_signal_callback, NULL);
00613 #ifdef SIGUSR1
00614     pa_signal_new(SIGUSR1, sigusr1_signal_callback, NULL);
00615 #endif
00616 #ifdef SIGPIPE
00617     signal(SIGPIPE, SIG_IGN);
00618 #endif
00619     
00620     if (!(stdio_event = mainloop_api->io_new(mainloop_api,
00621                                              mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO,
00622                                              mode == PLAYBACK ? PA_IO_EVENT_INPUT : PA_IO_EVENT_OUTPUT,
00623                                              mode == PLAYBACK ? stdin_callback : stdout_callback, NULL))) {
00624         fprintf(stderr, "io_new() failed.\n");
00625         goto quit;
00626     }
00627 
00628     /* Create a new connection context */
00629     if (!(context = pa_context_new(mainloop_api, client_name))) {
00630         fprintf(stderr, "pa_context_new() failed.\n");
00631         goto quit;
00632     }
00633 
00634     pa_context_set_state_callback(context, context_state_callback, NULL);
00635 
00636     /* Connect the context */
00637     pa_context_connect(context, server, 0, NULL);
00638 
00639     if (verbose) {
00640         struct timeval tv;
00641 
00642         pa_gettimeofday(&tv);
00643         pa_timeval_add(&tv, TIME_EVENT_USEC);
00644         
00645         if (!(time_event = mainloop_api->time_new(mainloop_api, &tv, time_event_callback, NULL))) {
00646             fprintf(stderr, "time_new() failed.\n");
00647             goto quit;
00648         }
00649     }
00650 
00651     /* Run the main loop */
00652     if (pa_mainloop_run(m, &ret) < 0) {
00653         fprintf(stderr, "pa_mainloop_run() failed.\n");
00654         goto quit;
00655     }
00656     
00657 quit:
00658     if (stream)
00659         pa_stream_unref(stream);
00660 
00661     if (context)
00662         pa_context_unref(context);
00663 
00664     if (stdio_event) {
00665         assert(mainloop_api);
00666         mainloop_api->io_free(stdio_event);
00667     }
00668 
00669     if (time_event) {
00670         assert(mainloop_api);
00671         mainloop_api->time_free(time_event);
00672     }
00673     
00674     if (m) {
00675         pa_signal_done();
00676         pa_mainloop_free(m);
00677     }
00678 
00679     pa_xfree(buffer);
00680 
00681     pa_xfree(server);
00682     pa_xfree(device);
00683     pa_xfree(client_name);
00684     pa_xfree(stream_name);
00685     
00686     return ret;
00687 }

Generated on Wed May 30 19:36:31 2007 for PulseAudio by  doxygen 1.5.1