c_cpp 具有回调的PulseAudio示例
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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <fcntl.h>
#include <locale.h>
#include <pulse/pulseaudio.h>
#include <pulse/rtclock.h>
#define TIME_EVENT_USEC 50000
#define CLEAR_LINE "\x1B[K"
static enum { RECORD, PLAYBACK } mode = PLAYBACK;
static pa_context *context = NULL;
static pa_stream *stream = NULL;
static pa_mainloop_api *mainloop_api = NULL;
static void *buffer = NULL;
static size_t buffer_length = 0, buffer_index = 0;
static pa_io_event* stdio_event = NULL;
static char *stream_name = NULL, *client_name = NULL, *device = NULL;
static int verbose = 0;
static pa_volume_t volume = PA_VOLUME_NORM;
static int volume_is_set = 0;
static pa_sample_spec sample_spec = {
.format = PA_SAMPLE_S16LE,
.rate = 44100,
.channels = 2
};
static pa_channel_map channel_map;
static int channel_map_set = 0;
static pa_stream_flags_t flags = 0;
static size_t latency = 0, process_time=0;
/* A shortcut for terminating the application */
static void quit(int ret) {
assert(mainloop_api);
mainloop_api->quit(mainloop_api, ret);
}
/* Write some data to the stream */
static void do_stream_write(size_t length) {
size_t l;
assert(length);
if (!buffer || !buffer_length)
return;
l = length;
if (l > buffer_length)
l = buffer_length;
if (pa_stream_write(stream, (uint8_t*) buffer + buffer_index, l, NULL, 0, PA_SEEK_RELATIVE) < 0) {
fprintf(stderr, "pa_stream_write() failed: %s\n", pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
buffer_length -= l;
buffer_index += l;
if (!buffer_length) {
pa_xfree(buffer);
buffer = NULL;
buffer_index = buffer_length = 0;
}
}
/* This is called whenever new data may be written to the stream */
static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
assert(s);
assert(length > 0);
if (stdio_event)
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_INPUT);
if (!buffer)
return;
do_stream_write(length);
}
/* This is called whenever new data may is available */
static void stream_read_callback(pa_stream *s, size_t length, void *userdata) {
const void *data;
assert(s);
assert(length > 0);
if (stdio_event)
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT);
if (pa_stream_peek(s, &data, &length) < 0) {
fprintf(stderr, "pa_stream_peek() failed: %s\n", pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
assert(data);
assert(length > 0);
if (buffer) {
buffer = pa_xrealloc(buffer, buffer_length + length);
memcpy((uint8_t*) buffer + buffer_length, data, length);
buffer_length += length;
} else {
buffer = pa_xmalloc(length);
memcpy(buffer, data, length);
buffer_length = length;
buffer_index = 0;
}
pa_stream_drop(s);
}
/* This routine is called whenever the stream state changes */
static void stream_state_callback(pa_stream *s, void *userdata) {
assert(s);
switch (pa_stream_get_state(s)) {
case PA_STREAM_CREATING:
case PA_STREAM_TERMINATED:
break;
case PA_STREAM_READY:
if (verbose) {
const pa_buffer_attr *a;
char cmt[PA_CHANNEL_MAP_SNPRINT_MAX], sst[PA_SAMPLE_SPEC_SNPRINT_MAX];
fprintf(stderr, "Stream successfully created.\n");
if (!(a = pa_stream_get_buffer_attr(s)))
fprintf(stderr, "pa_stream_get_buffer_attr() failed: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
else {
if (mode == PLAYBACK)
fprintf(stderr, "Buffer metrics: maxlength=%u, tlength=%u, prebuf=%u, minreq=%u\n", a->maxlength, a->tlength, a->prebuf, a->minreq);
else {
assert(mode == RECORD);
fprintf(stderr, "Buffer metrics: maxlength=%u, fragsize=%u\n", a->maxlength, a->fragsize);
}
}
fprintf(stderr, "Using sample spec '%s', channel map '%s'.\n",
pa_sample_spec_snprint(sst, sizeof(sst), pa_stream_get_sample_spec(s)),
pa_channel_map_snprint(cmt, sizeof(cmt), pa_stream_get_channel_map(s)));
fprintf(stderr, "Connected to device %s (%u, %ssuspended).\n",
pa_stream_get_device_name(s),
pa_stream_get_device_index(s),
pa_stream_is_suspended(s) ? "" : "not ");
}
break;
case PA_STREAM_FAILED:
default:
fprintf(stderr, "Stream error: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
quit(1);
}
}
static void stream_suspended_callback(pa_stream *s, void *userdata) {
assert(s);
if (verbose) {
if (pa_stream_is_suspended(s))
fprintf(stderr, "Stream device suspended.%s \n", CLEAR_LINE);
else
fprintf(stderr, "Stream device resumed.%s \n", CLEAR_LINE);
}
}
static void stream_underflow_callback(pa_stream *s, void *userdata) {
assert(s);
if (verbose)
fprintf(stderr, "Stream underrun.%s \n", CLEAR_LINE);
}
static void stream_overflow_callback(pa_stream *s, void *userdata) {
assert(s);
if (verbose)
fprintf(stderr, "Stream overrun.%s \n", CLEAR_LINE);
}
static void stream_started_callback(pa_stream *s, void *userdata) {
assert(s);
if (verbose)
fprintf(stderr, "Stream started.%s \n", CLEAR_LINE);
}
static void stream_moved_callback(pa_stream *s, void *userdata) {
assert(s);
if (verbose)
fprintf(stderr, "Stream moved to device %s (%u, %ssuspended).%s \n", pa_stream_get_device_name(s), pa_stream_get_device_index(s), pa_stream_is_suspended(s) ? "" : "not ", CLEAR_LINE);
}
static void stream_buffer_attr_callback(pa_stream *s, void *userdata) {
assert(s);
if (verbose)
fprintf(stderr, "Stream buffer attributes changed.%s \n", CLEAR_LINE);
}
static void stream_event_callback(pa_stream *s, const char *name, pa_proplist *pl, void *userdata) {
char *t;
assert(s);
assert(name);
assert(pl);
t = pa_proplist_to_string_sep(pl, ", ");
fprintf(stderr, "Got event '%s', properties '%s'\n", name, t);
pa_xfree(t);
}
/* This is called whenever the context status changes */
static void context_state_callback(pa_context *c, void *userdata) {
assert(c);
switch (pa_context_get_state(c)) {
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
break;
case PA_CONTEXT_READY: {
int r;
pa_buffer_attr buffer_attr;
assert(c);
assert(!stream);
if (verbose)
fprintf(stderr, "Connection established.%s \n", CLEAR_LINE);
if (!(stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL))) {
fprintf(stderr, "pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(c)));
goto fail;
}
pa_stream_set_state_callback(stream, stream_state_callback, NULL);
pa_stream_set_write_callback(stream, stream_write_callback, NULL);
pa_stream_set_read_callback(stream, stream_read_callback, NULL);
pa_stream_set_suspended_callback(stream, stream_suspended_callback, NULL);
pa_stream_set_moved_callback(stream, stream_moved_callback, NULL);
pa_stream_set_underflow_callback(stream, stream_underflow_callback, NULL);
pa_stream_set_overflow_callback(stream, stream_overflow_callback, NULL);
pa_stream_set_started_callback(stream, stream_started_callback, NULL);
pa_stream_set_event_callback(stream, stream_event_callback, NULL);
pa_stream_set_buffer_attr_callback(stream, stream_buffer_attr_callback, NULL);
if (latency > 0) {
memset(&buffer_attr, 0, sizeof(buffer_attr));
buffer_attr.tlength = (uint32_t) latency;
buffer_attr.minreq = (uint32_t) process_time;
buffer_attr.maxlength = (uint32_t) -1;
buffer_attr.prebuf = (uint32_t) -1;
buffer_attr.fragsize = (uint32_t) latency;
flags |= PA_STREAM_ADJUST_LATENCY;
}
if (mode == PLAYBACK) {
pa_cvolume cv;
if ((r = pa_stream_connect_playback(stream, device, latency > 0 ? &buffer_attr : NULL, flags, volume_is_set ? pa_cvolume_set(&cv, sample_spec.channels, volume) : NULL, NULL)) < 0) {
fprintf(stderr, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c)));
goto fail;
}
} else {
if ((r = pa_stream_connect_record(stream, device, latency > 0 ? &buffer_attr : NULL, flags)) < 0) {
fprintf(stderr, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c)));
goto fail;
}
}
break;
}
case PA_CONTEXT_TERMINATED:
quit(0);
break;
case PA_CONTEXT_FAILED:
default:
fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c)));
goto fail;
}
return;
fail:
quit(1);
}
/* Connection draining complete */
static void context_drain_complete(pa_context*c, void *userdata) {
pa_context_disconnect(c);
}
/* Stream draining complete */
static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
if (!success) {
fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
quit(1);
}
if (verbose)
fprintf(stderr, "Playback stream drained.\n");
pa_stream_disconnect(stream);
pa_stream_unref(stream);
stream = NULL;
if (!pa_context_drain(context, context_drain_complete, NULL))
pa_context_disconnect(context);
else {
if (verbose)
fprintf(stderr, "Draining connection to server.\n");
}
}
/* New data on STDIN **/
static void stdin_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
size_t l, w = 0;
ssize_t r;
assert(a == mainloop_api);
assert(e);
assert(stdio_event == e);
if (buffer) {
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
return;
}
if (!stream || pa_stream_get_state(stream) != PA_STREAM_READY || !(l = w = pa_stream_writable_size(stream)))
l = 4096;
buffer = pa_xmalloc(l);
if ((r = read(fd, buffer, l)) <= 0) {
if (r == 0) {
if (verbose)
fprintf(stderr, "Got EOF.\n");
if (stream) {
pa_operation *o;
if (!(o = pa_stream_drain(stream, stream_drain_complete, NULL))) {
fprintf(stderr, "pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
pa_operation_unref(o);
} else
quit(0);
} else {
fprintf(stderr, "read() failed: %s\n", strerror(errno));
quit(1);
}
mainloop_api->io_free(stdio_event);
stdio_event = NULL;
return;
}
buffer_length = (uint32_t) r;
buffer_index = 0;
if (w)
do_stream_write(w);
}
/* Some data may be written to STDOUT */
static void stdout_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
ssize_t r;
assert(a == mainloop_api);
assert(e);
assert(stdio_event == e);
if (!buffer) {
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
return;
}
assert(buffer_length);
if ((r = write(fd, (uint8_t*) buffer+buffer_index, buffer_length)) <= 0) {
fprintf(stderr, "write() failed: %s\n", strerror(errno));
quit(1);
mainloop_api->io_free(stdio_event);
stdio_event = NULL;
return;
}
buffer_length -= (uint32_t) r;
buffer_index += (uint32_t) r;
if (!buffer_length) {
pa_xfree(buffer);
buffer = NULL;
buffer_length = buffer_index = 0;
}
}
/* UNIX signal to quit recieved */
static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
if (verbose)
fprintf(stderr, "Got signal, exiting.\n");
quit(0);
}
/* Show the current latency */
static void stream_update_timing_callback(pa_stream *s, int success, void *userdata) {
pa_usec_t l, usec;
int negative = 0;
assert(s);
if (!success ||
pa_stream_get_time(s, &usec) < 0 ||
pa_stream_get_latency(s, &l, &negative) < 0) {
fprintf(stderr, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
fprintf(stderr, "Time: %0.3f sec; Latency: %0.0f usec. \r",
(float) usec / 1000000,
(float) l * (negative?-1.0f:1.0f));
}
/* Someone requested that the latency is shown */
static void sigusr1_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
if (!stream)
return;
pa_operation_unref(pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL));
}
static void time_event_callback(pa_mainloop_api *m, pa_time_event *e, const struct timeval *tv, void *userdata) {
if (stream && pa_stream_get_state(stream) == PA_STREAM_READY) {
pa_operation *o;
if (!(o = pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL)))
fprintf(stderr, "pa_stream_update_timing_info() failed: %s\n", pa_strerror(pa_context_errno(context)));
else
pa_operation_unref(o);
}
struct timeval now;
gettimeofday(&now, NULL);
pa_timeval_add(&now, TIME_EVENT_USEC);
m->time_restart(e, &now);
}
static void help(const char *argv0) {
printf("%s [options]\n\n"
" -h, --help Show this help\n"
" --version Show version\n\n"
" -r, --record Create a connection for recording\n"
" -p, --playback Create a connection for playback\n\n"
" -v, --verbose Enable verbose operations\n\n"
" -s, --server=SERVER The name of the server to connect to\n"
" -d, --device=DEVICE The name of the sink/source to connect to\n"
" -n, --client-name=NAME How to call this client on the server\n"
" --stream-name=NAME How to call this stream on the server\n"
" --volume=VOLUME Specify the initial (linear) volume in range 0...65536\n"
" --rate=SAMPLERATE The sample rate in Hz (defaults to 44100)\n"
" --format=SAMPLEFORMAT The sample type, one of s16le, s16be, u8, float32le,\n"
" float32be, ulaw, alaw, s32le, s32be (defaults to s16ne)\n"
" --channels=CHANNELS The number of channels, 1 for mono, 2 for stereo\n"
" (defaults to 2)\n"
" --channel-map=CHANNELMAP Channel map to use instead of the default\n"
" --fix-format Take the sample format from the sink the stream is\n"
" being connected to.\n"
" --fix-rate Take the sampling rate from the sink the stream is\n"
" being connected to.\n"
" --fix-channels Take the number of channels and the channel map\n"
" from the sink the stream is being connected to.\n"
" --no-remix Don't upmix or downmix channels.\n"
" --no-remap Map channels by index instead of name.\n"
" --latency=BYTES Request the specified latency in bytes.\n"
" --process-time=BYTES Request the specified process time per request in bytes.\n"
,
argv0);
}
enum {
ARG_VERSION = 256,
ARG_STREAM_NAME,
ARG_VOLUME,
ARG_SAMPLERATE,
ARG_SAMPLEFORMAT,
ARG_CHANNELS,
ARG_CHANNELMAP,
ARG_FIX_FORMAT,
ARG_FIX_RATE,
ARG_FIX_CHANNELS,
ARG_NO_REMAP,
ARG_NO_REMIX,
ARG_LATENCY,
ARG_PROCESS_TIME
};
int main(int argc, char *argv[]) {
pa_mainloop* m = NULL;
int ret = 1, r, c;
char *bn, *server = NULL;
pa_time_event *time_event = NULL;
static const struct option long_options[] = {
{"record", 0, NULL, 'r'},
{"playback", 0, NULL, 'p'},
{"device", 1, NULL, 'd'},
{"server", 1, NULL, 's'},
{"client-name", 1, NULL, 'n'},
{"stream-name", 1, NULL, ARG_STREAM_NAME},
{"version", 0, NULL, ARG_VERSION},
{"help", 0, NULL, 'h'},
{"verbose", 0, NULL, 'v'},
{"volume", 1, NULL, ARG_VOLUME},
{"rate", 1, NULL, ARG_SAMPLERATE},
{"format", 1, NULL, ARG_SAMPLEFORMAT},
{"channels", 1, NULL, ARG_CHANNELS},
{"channel-map", 1, NULL, ARG_CHANNELMAP},
{"fix-format", 0, NULL, ARG_FIX_FORMAT},
{"fix-rate", 0, NULL, ARG_FIX_RATE},
{"fix-channels", 0, NULL, ARG_FIX_CHANNELS},
{"no-remap", 0, NULL, ARG_NO_REMAP},
{"no-remix", 0, NULL, ARG_NO_REMIX},
{"latency", 1, NULL, ARG_LATENCY},
{"process-time", 1, NULL, ARG_PROCESS_TIME},
{NULL, 0, NULL, 0}
};
setlocale(LC_ALL, "");
if (!(bn = strrchr(argv[0], '/')))
bn = argv[0];
else
bn++;
if (strstr(bn, "rec") || strstr(bn, "mon"))
mode = RECORD;
else if (strstr(bn, "cat") || strstr(bn, "play"))
mode = PLAYBACK;
while ((c = getopt_long(argc, argv, "rpd:s:n:hv", long_options, NULL)) != -1) {
switch (c) {
case 'h' :
help(bn);
ret = 0;
goto quit;
case ARG_VERSION:
// printf("pacat %s\nCompiled with libpulse %s\nLinked with libpulse %s\n", PACKAGE_VERSION, pa_get_headers_version(), pa_get_library_version());
ret = 0;
goto quit;
case 'r':
mode = RECORD;
break;
case 'p':
mode = PLAYBACK;
break;
case 'd':
pa_xfree(device);
device = pa_xstrdup(optarg);
break;
case 's':
pa_xfree(server);
server = pa_xstrdup(optarg);
break;
case 'n':
pa_xfree(client_name);
client_name = pa_xstrdup(optarg);
break;
case ARG_STREAM_NAME:
pa_xfree(stream_name);
stream_name = pa_xstrdup(optarg);
break;
case 'v':
verbose = 1;
break;
case ARG_VOLUME: {
int v = atoi(optarg);
volume = v < 0 ? 0U : (pa_volume_t) v;
volume_is_set = 1;
break;
}
case ARG_CHANNELS:
sample_spec.channels = (uint8_t) atoi(optarg);
break;
case ARG_SAMPLEFORMAT:
sample_spec.format = pa_parse_sample_format(optarg);
break;
case ARG_SAMPLERATE:
sample_spec.rate = (uint32_t) atoi(optarg);
break;
case ARG_CHANNELMAP:
if (!pa_channel_map_parse(&channel_map, optarg)) {
fprintf(stderr, "Invalid channel map '%s'\n", optarg);
goto quit;
}
channel_map_set = 1;
break;
case ARG_FIX_CHANNELS:
flags |= PA_STREAM_FIX_CHANNELS;
break;
case ARG_FIX_RATE:
flags |= PA_STREAM_FIX_RATE;
break;
case ARG_FIX_FORMAT:
flags |= PA_STREAM_FIX_FORMAT;
break;
case ARG_NO_REMIX:
flags |= PA_STREAM_NO_REMIX_CHANNELS;
break;
case ARG_NO_REMAP:
flags |= PA_STREAM_NO_REMAP_CHANNELS;
break;
case ARG_LATENCY:
if (((latency = (size_t) atoi(optarg))) <= 0) {
fprintf(stderr, "Invalid latency specification '%s'\n", optarg);
goto quit;
}
break;
case ARG_PROCESS_TIME:
if (((process_time = (size_t) atoi(optarg))) <= 0) {
fprintf(stderr, "Invalid process time specification '%s'\n", optarg);
goto quit;
}
break;
default:
goto quit;
}
}
if (!pa_sample_spec_valid(&sample_spec)) {
fprintf(stderr, "Invalid sample specification\n");
goto quit;
}
if (channel_map_set && pa_channel_map_compatible(&channel_map, &sample_spec)) {
fprintf(stderr, "Channel map doesn't match sample specification\n");
goto quit;
}
if (verbose) {
char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
fprintf(stderr, "Opening a %s stream with sample specification '%s'.\n", mode == RECORD ? "recording" : "playback", t);
}
if (!(optind >= argc)) {
if (optind+1 == argc) {
int fd;
if ((fd = open(argv[optind], mode == PLAYBACK ? O_RDONLY : O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) {
fprintf(stderr, "open(): %s\n", strerror(errno));
goto quit;
}
if (dup2(fd, mode == PLAYBACK ? 0 : 1) < 0) {
fprintf(stderr, "dup2(): %s\n", strerror(errno));
goto quit;
}
close(fd);
if (!stream_name)
stream_name = pa_xstrdup(argv[optind]);
} else {
fprintf(stderr, "Too many arguments.\n");
goto quit;
}
}
if (!client_name)
client_name = pa_xstrdup(bn);
if (!stream_name)
stream_name = pa_xstrdup(client_name);
/* Set up a new main loop */
if (!(m = pa_mainloop_new())) {
fprintf(stderr, "pa_mainloop_new() failed.\n");
goto quit;
}
mainloop_api = pa_mainloop_get_api(m);
r = pa_signal_init(mainloop_api);
assert(r == 0);
pa_signal_new(SIGINT, exit_signal_callback, NULL);
pa_signal_new(SIGTERM, exit_signal_callback, NULL);
#ifdef SIGUSR1
pa_signal_new(SIGUSR1, sigusr1_signal_callback, NULL);
#endif
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN);
#endif
if (!(stdio_event = mainloop_api->io_new(mainloop_api,
mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO,
mode == PLAYBACK ? PA_IO_EVENT_INPUT : PA_IO_EVENT_OUTPUT,
mode == PLAYBACK ? stdin_callback : stdout_callback, NULL))) {
fprintf(stderr, "io_new() failed.\n");
goto quit;
}
/* Create a new connection context */
if (!(context = pa_context_new(mainloop_api, client_name))) {
fprintf(stderr, "pa_context_new() failed.\n");
goto quit;
}
pa_context_set_state_callback(context, context_state_callback, NULL);
/* Connect the context */
if (pa_context_connect(context, server, 0, NULL) < 0) {
fprintf(stderr, "pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(context)));
goto quit;
}
if (verbose) {
struct timeval now;
gettimeofday(&now, NULL);
pa_timeval_add(&now, TIME_EVENT_USEC);
if (!(time_event = mainloop_api->time_new(mainloop_api, &now, time_event_callback, NULL))) {
fprintf(stderr, "time_new() failed.\n");
goto quit;
}
}
/* Run the main loop */
if (pa_mainloop_run(m, &ret) < 0) {
fprintf(stderr, "pa_mainloop_run() failed.\n");
goto quit;
}
quit:
if (stream)
pa_stream_unref(stream);
if (context)
pa_context_unref(context);
if (stdio_event) {
assert(mainloop_api);
mainloop_api->io_free(stdio_event);
}
if (time_event) {
assert(mainloop_api);
mainloop_api->time_free(time_event);
}
if (m) {
pa_signal_done();
pa_mainloop_free(m);
}
pa_xfree(buffer);
pa_xfree(server);
pa_xfree(device);
pa_xfree(client_name);
pa_xfree(stream_name);
return ret;
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