static void signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
pa_log_info(_("Got signal %s."), pa_sig2str(sig));
switch (sig) {
#ifdef SIGUSR1
case SIGUSR1:
pa_module_load(userdata, "module-cli", NULL);
break;
#endif
#ifdef SIGUSR2
case SIGUSR2:
pa_module_load(userdata, "module-cli-protocol-unix", NULL);
break;
#endif
#ifdef SIGHUP
case SIGHUP: {
char *c = pa_full_status_string(userdata);
pa_log_notice("%s", c);
pa_xfree(c);
return;
}
#endif
case SIGINT:
case SIGTERM:
default:
pa_log_info(_("Exiting."));
m->quit(m, 1);
break;
}
}
static int detect_oss(pa_core *c, int just_one) {
FILE *f;
int n = 0, b = 0;
if (!(f = pa_fopen_cloexec("/dev/sndstat", "r")) &&
!(f = pa_fopen_cloexec("/proc/sndstat", "r")) &&
!(f = pa_fopen_cloexec("/proc/asound/oss/sndstat", "r"))) {
if (errno != ENOENT)
pa_log_error("failed to open OSS sndstat device: %s", pa_cstrerror(errno));
return -1;
}
while (!feof(f)) {
char line[256], args[64];
unsigned device;
if (!fgets(line, sizeof(line), f))
break;
line[strcspn(line, "\r\n")] = 0;
if (!b) {
b = pa_streq(line, "Audio devices:") || pa_streq(line, "Installed devices:");
continue;
}
if (line[0] == 0)
break;
if (sscanf(line, "%u: ", &device) == 1) {
if (device == 0)
pa_snprintf(args, sizeof(args), "device=/dev/dsp");
else
pa_snprintf(args, sizeof(args), "device=/dev/dsp%u", device);
if (!pa_module_load(c, "module-oss", args))
continue;
} else if (sscanf(line, "pcm%u: ", &device) == 1) {
/* FreeBSD support, the devices are named /dev/dsp0.0, dsp0.1 and so on */
pa_snprintf(args, sizeof(args), "device=/dev/dsp%u.0", device);
if (!pa_module_load(c, "module-oss", args))
continue;
}
n++;
if (just_one)
break;
}
fclose(f);
return n;
}
/* When a source is created, loopback it to default sink */
static pa_hook_result_t source_put_hook_callback(pa_core *c, pa_source *source, void* userdata) {
const char *s;
const char *role;
char *args;
pa_assert(c);
pa_assert(source);
/* Only consider bluetooth sinks and sources */
s = pa_proplist_gets(source->proplist, PA_PROP_DEVICE_BUS);
if (!s)
return PA_HOOK_OK;
if (!pa_streq(s, "bluetooth"))
return PA_HOOK_OK;
/* Restrict to A2DP profile (sink role) */
s = pa_proplist_gets(source->proplist, "bluetooth.protocol");
if (!s)
return PA_HOOK_OK;
if (pa_streq(s, "a2dp_source"))
role = "music";
else {
pa_log_debug("Profile %s cannot be selected for loopback", s);
return PA_HOOK_OK;
}
/* Load module-loopback */
args = pa_sprintf_malloc("source=\"%s\" source_dont_move=\"true\" sink_input_properties=\"media.role=%s\"", source->name, role);
(void) pa_module_load(c, "module-loopback", args);
pa_xfree(args);
return PA_HOOK_OK;
}
static int detect_solaris(pa_core *c, int just_one) {
struct stat s;
const char *dev;
char args[64];
dev = getenv("AUDIODEV");
if (!dev)
dev = "/dev/audio";
if (stat(dev, &s) < 0) {
if (errno != ENOENT)
pa_log_error("failed to open device %s: %s", dev, pa_cstrerror(errno));
return -1;
}
if (!S_ISCHR(s.st_mode))
return 0;
pa_snprintf(args, sizeof(args), "device=%s", dev);
if (!pa_module_load(c, "module-solaris", args))
return 0;
return 1;
}
static void load_null_sink_if_needed(pa_core *c, pa_sink *sink, struct userdata* u) {
pa_sink *target;
uint32_t idx;
char *t;
pa_module *m;
pa_assert(c);
pa_assert(u);
pa_assert(u->null_module == PA_INVALID_INDEX);
/* Loop through all sinks and check to see if we have *any*
* sinks. Ignore the sink passed in (if it's not null) */
for (target = pa_idxset_first(c->sinks, &idx); target; target = pa_idxset_next(c->sinks, &idx))
if (!sink || target != sink)
break;
if (target)
return;
pa_log_debug("Autoloading null-sink as no other sinks detected.");
u->ignore = TRUE;
t = pa_sprintf_malloc("sink_name=%s sink_properties='device.description=\"%s\"'", u->sink_name,
_("Dummy Output"));
m = pa_module_load(c, "module-null-sink", t);
u->null_module = m ? m->index : PA_INVALID_INDEX;
pa_xfree(t);
u->ignore = FALSE;
if (!m)
pa_log_warn("Unable to load module-null-sink");
}
static int detect_alsa(pa_core *c, int just_one) {
FILE *f;
int n = 0, n_sink = 0, n_source = 0;
if (!(f = pa_fopen_cloexec("/proc/asound/devices", "r"))) {
if (errno != ENOENT)
pa_log_error("open(\"/proc/asound/devices\") failed: %s", pa_cstrerror(errno));
return -1;
}
while (!feof(f)) {
char line[64], args[64];
unsigned device, subdevice;
int is_sink;
if (!fgets(line, sizeof(line), f))
break;
line[strcspn(line, "\r\n")] = 0;
if (pa_endswith(line, "digital audio playback"))
is_sink = 1;
else if (pa_endswith(line, "digital audio capture"))
is_sink = 0;
else
continue;
if (just_one && is_sink && n_sink >= 1)
continue;
if (just_one && !is_sink && n_source >= 1)
continue;
if (sscanf(line, " %*i: [%u- %u]: ", &device, &subdevice) != 2)
continue;
/* Only one sink per device */
if (subdevice != 0)
continue;
pa_snprintf(args, sizeof(args), "device_id=%u", device);
if (!pa_module_load(c, is_sink ? "module-alsa-sink" : "module-alsa-source", args))
continue;
n++;
if (is_sink)
n_sink++;
else
n_source++;
}
fclose(f);
return n;
}
static int detect_waveout(pa_core *c, int just_one) {
/*
* FIXME: No point in enumerating devices until the plugin supports
* selecting anything but the first.
*/
if (!pa_module_load(c, "module-waveout", ""))
return 0;
return 1;
}
void pa_autoload_request(pa_core *c, const char *name, pa_namereg_type_t type) {
pa_autoload_entry *e;
pa_module *m;
pa_assert(c);
pa_assert(name);
if (!c->autoload_hashmap || !(e = pa_hashmap_get(c->autoload_hashmap, name)) || (e->type != type))
return;
if (e->in_action)
return;
e->in_action = 1;
if (type == PA_NAMEREG_SINK || type == PA_NAMEREG_SOURCE) {
if ((m = pa_module_load(c, e->module, e->argument)))
m->auto_unload = 1;
}
e->in_action = 0;
}
void load_module(
struct pa_module_info *m,
unsigned i,
const char *name,
const char *args,
bool is_new) {
struct userdata *u;
pa_module *mod;
pa_assert(m);
pa_assert(name);
pa_assert(args);
u = m->userdata;
if (!is_new) {
if (m->items[i].index != PA_INVALID_INDEX &&
pa_streq(m->items[i].name, name) &&
pa_streq(m->items[i].args, args))
return;
unload_one_module(m, i);
}
pa_log_debug("Loading module '%s' with args '%s' due to GConf/GSettings configuration.", name, args);
m->items[i].name = pa_xstrdup(name);
m->items[i].args = pa_xstrdup(args);
m->items[i].index = PA_INVALID_INDEX;
if (pa_module_load(&mod, u->core, name, args) < 0) {
pa_log("pa_module_load() failed");
return;
}
m->items[i].index = mod->index;
}
int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
bool restore_device = true, restore_volume = true;
pa_module *n;
char *t;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments");
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "restore_device", &restore_device) < 0 ||
pa_modargs_get_value_boolean(ma, "restore_volume", &restore_volume) < 0) {
pa_log("restore_volume= and restore_device= expect boolean arguments");
goto fail;
}
pa_log_warn("We will now load module-stream-restore. Please make sure to remove module-volume-restore from your configuration.");
t = pa_sprintf_malloc("restore_volume=%s restore_device=%s", pa_yes_no(restore_volume), pa_yes_no(restore_device));
n = pa_module_load(m->core, "module-stream-restore", t);
pa_xfree(t);
if (n)
pa_module_unload_request(m, true);
pa_modargs_free(ma);
return n ? 0 : -1;
fail:
if (ma)
pa_modargs_free(ma);
return -1;
}
static void resolver_cb(
AvahiServiceResolver *r,
AvahiIfIndex interface, AvahiProtocol protocol,
AvahiResolverEvent event,
const char *name, const char *type, const char *domain,
const char *host_name, const AvahiAddress *a, uint16_t port,
AvahiStringList *txt,
AvahiLookupResultFlags flags,
void *userdata) {
struct userdata *u = userdata;
struct tunnel *tnl;
pa_assert(u);
tnl = tunnel_new(interface, protocol, name, type, domain);
if (event != AVAHI_RESOLVER_FOUND)
pa_log("Resolving of '%s' failed: %s", name, avahi_strerror(avahi_client_errno(u->client)));
else {
char *device = NULL, *dname, *module_name, *args;
const char *t;
char at[AVAHI_ADDRESS_STR_MAX], cmt[PA_CHANNEL_MAP_SNPRINT_MAX];
pa_sample_spec ss;
pa_channel_map cm;
AvahiStringList *l;
pa_bool_t channel_map_set = FALSE;
pa_module *m;
ss = u->core->default_sample_spec;
cm = u->core->default_channel_map;
for (l = txt; l; l = l->next) {
char *key, *value;
pa_assert_se(avahi_string_list_get_pair(l, &key, &value, NULL) == 0);
if (pa_streq(key, "device")) {
pa_xfree(device);
device = value;
value = NULL;
} else if (pa_streq(key, "rate"))
ss.rate = (uint32_t) atoi(value);
else if (pa_streq(key, "channels"))
ss.channels = (uint8_t) atoi(value);
else if (pa_streq(key, "format"))
ss.format = pa_parse_sample_format(value);
else if (pa_streq(key, "channel_map")) {
pa_channel_map_parse(&cm, value);
channel_map_set = TRUE;
}
avahi_free(key);
avahi_free(value);
}
if (!channel_map_set && cm.channels != ss.channels)
pa_channel_map_init_extend(&cm, ss.channels, PA_CHANNEL_MAP_DEFAULT);
if (!pa_sample_spec_valid(&ss)) {
pa_log("Service '%s' contains an invalid sample specification.", name);
avahi_free(device);
goto finish;
}
if (!pa_channel_map_valid(&cm) || cm.channels != ss.channels) {
pa_log("Service '%s' contains an invalid channel map.", name);
avahi_free(device);
goto finish;
}
if (device)
dname = pa_sprintf_malloc("tunnel.%s.%s", host_name, device);
else
dname = pa_sprintf_malloc("tunnel.%s", host_name);
if (!pa_namereg_is_valid_name(dname)) {
pa_log("Cannot construct valid device name from credentials of service '%s'.", dname);
avahi_free(device);
pa_xfree(dname);
goto finish;
}
t = strstr(type, "sink") ? "sink" : "source";
module_name = pa_sprintf_malloc("module-tunnel-%s", t);
args = pa_sprintf_malloc("server=[%s]:%u "
"%s=%s "
"format=%s "
"channels=%u "
"rate=%u "
"%s_name=%s "
"channel_map=%s",
avahi_address_snprint(at, sizeof(at), a), port,
t, device,
pa_sample_format_to_string(ss.format),
ss.channels,
ss.rate,
t, dname,
pa_channel_map_snprint(cmt, sizeof(cmt), &cm));
pa_log_debug("Loading %s with arguments '%s'", module_name, args);
if ((m = pa_module_load(u->core, module_name, args))) {
tnl->module_index = m->index;
pa_hashmap_put(u->tunnels, tnl, tnl);
tnl = NULL;
}
pa_xfree(module_name);
pa_xfree(dname);
pa_xfree(args);
avahi_free(device);
}
finish:
avahi_service_resolver_free(r);
if (tnl)
tunnel_free(tnl);
}
static void resolver_cb(
AvahiServiceResolver *r,
AvahiIfIndex interface, AvahiProtocol protocol,
AvahiResolverEvent event,
const char *name, const char *type, const char *domain,
const char *host_name, const AvahiAddress *a, uint16_t port,
AvahiStringList *txt,
AvahiLookupResultFlags flags,
void *userdata) {
struct userdata *u = userdata;
struct tunnel *tnl;
char *device = NULL, *nicename, *dname, *vname, *args;
char *tp = NULL, *et = NULL, *cn = NULL;
char *ch = NULL, *ss = NULL, *sr = NULL;
char *t = NULL;
char at[AVAHI_ADDRESS_STR_MAX];
AvahiStringList *l;
pa_module *m;
pa_assert(u);
tnl = tunnel_new(interface, protocol, name, type, domain);
if (event != AVAHI_RESOLVER_FOUND) {
pa_log("Resolving of '%s' failed: %s", name, avahi_strerror(avahi_client_errno(u->client)));
goto finish;
}
if ((nicename = strstr(name, "@"))) {
++nicename;
if (strlen(nicename) > 0) {
pa_log_debug("Found RAOP: %s", nicename);
nicename = pa_escape(nicename, "\"'");
} else
nicename = NULL;
}
for (l = txt; l; l = l->next) {
char *key, *value;
pa_assert_se(avahi_string_list_get_pair(l, &key, &value, NULL) == 0);
pa_log_debug("Found key: '%s' with value: '%s'", key, value);
if (pa_streq(key, "device")) {
device = value;
value = NULL;
} else if (pa_streq(key, "tp")) {
/* Transport protocol:
* - TCP = only TCP,
* - UDP = only UDP,
* - TCP,UDP = both supported (UDP should be prefered) */
pa_xfree(tp);
if (pa_str_in_list(value, ",", "UDP"))
tp = pa_xstrdup("UDP");
else if (pa_str_in_list(value, ",", "TCP"))
tp = pa_xstrdup("TCP");
else
tp = pa_xstrdup(value);
} else if (pa_streq(key, "et")) {
/* Supported encryption types:
* - 0 = none,
* - 1 = RSA,
* - 2 = FairPlay,
* - 3 = MFiSAP,
* - 4 = FairPlay SAPv2.5. */
pa_xfree(et);
if (pa_str_in_list(value, ",", "1"))
et = pa_xstrdup("RSA");
else
et = pa_xstrdup("none");
} else if (pa_streq(key, "cn")) {
/* Suported audio codecs:
* - 0 = PCM,
* - 1 = ALAC,
* - 2 = AAC,
* - 3 = AAC ELD. */
pa_xfree(cn);
if (pa_str_in_list(value, ",", "1"))
cn = pa_xstrdup("ALAC");
else
cn = pa_xstrdup("PCM");
} else if (pa_streq(key, "md")) {
/* Supported metadata types:
* - 0 = text,
* - 1 = artwork,
* - 2 = progress. */
} else if (pa_streq(key, "pw")) {
/* Requires password ? (true/false) */
} else if (pa_streq(key, "ch")) {
/* Number of channels */
pa_xfree(ch);
ch = pa_xstrdup(value);
} else if (pa_streq(key, "ss")) {
/* Sample size */
pa_xfree(ss);
ss = pa_xstrdup(value);
} else if (pa_streq(key, "sr")) {
/* Sample rate */
pa_xfree(sr);
sr = pa_xstrdup(value);
}
avahi_free(key);
avahi_free(value);
}
if (device)
dname = pa_sprintf_malloc("raop_output.%s.%s", host_name, device);
else
dname = pa_sprintf_malloc("raop_output.%s", host_name);
if (!(vname = pa_namereg_make_valid_name(dname))) {
pa_log("Cannot construct valid device name from '%s'.", dname);
avahi_free(device);
pa_xfree(dname);
pa_xfree(tp);
pa_xfree(et);
pa_xfree(cn);
pa_xfree(ch);
pa_xfree(ss);
pa_xfree(sr);
goto finish;
}
avahi_free(device);
pa_xfree(dname);
avahi_address_snprint(at, sizeof(at), a);
if (nicename) {
args = pa_sprintf_malloc("server=[%s]:%u "
"sink_name=%s "
"sink_properties='device.description=\"%s (%s:%u)\"'",
at, port,
vname,
nicename, at, port);
pa_xfree(nicename);
} else {
args = pa_sprintf_malloc("server=[%s]:%u "
"sink_name=%s"
"sink_properties='device.description=\"%s:%u\"'",
at, port,
vname,
at, port);
}
if (tp != NULL) {
t = args;
args = pa_sprintf_malloc("%s protocol=%s", args, tp);
pa_xfree(tp);
pa_xfree(t);
}
if (et != NULL) {
t = args;
args = pa_sprintf_malloc("%s encryption=%s", args, et);
pa_xfree(et);
pa_xfree(t);
}
if (cn != NULL) {
t = args;
args = pa_sprintf_malloc("%s codec=%s", args, cn);
pa_xfree(cn);
pa_xfree(t);
}
if (ch != NULL) {
t = args;
args = pa_sprintf_malloc("%s channels=%s", args, ch);
pa_xfree(ch);
pa_xfree(t);
}
if (ss != NULL) {
t = args;
args = pa_sprintf_malloc("%s format=%s", args, ss);
pa_xfree(ss);
pa_xfree(t);
}
if (sr != NULL) {
t = args;
args = pa_sprintf_malloc("%s rate=%s", args, sr);
pa_xfree(sr);
pa_xfree(t);
}
pa_log_debug("Loading module-raop-sink with arguments '%s'", args);
if ((m = pa_module_load(u->core, "module-raop-sink", args))) {
tnl->module_index = m->index;
pa_hashmap_put(u->tunnels, tnl, tnl);
tnl = NULL;
}
pa_xfree(vname);
pa_xfree(args);
finish:
avahi_service_resolver_free(r);
if (tnl)
tunnel_free(tnl);
}
static void verify_access(struct userdata *u, struct device *d) {
char *cd;
pa_card *card;
bool accessible;
pa_assert(u);
pa_assert(d);
cd = pa_sprintf_malloc("/dev/snd/controlC%s", path_get_card_id(d->path));
accessible = access(cd, R_OK|W_OK) >= 0;
pa_log_debug("%s is accessible: %s", cd, pa_yes_no(accessible));
pa_xfree(cd);
if (d->module == PA_INVALID_INDEX) {
/* If we are not loaded, try to load */
if (accessible) {
pa_module *m;
bool busy;
/* Check if any of the PCM devices that belong to this
* card are currently busy. If they are, don't try to load
* right now, to make sure the probing phase can
* successfully complete. When the current user of the
* device closes it we will get another notification via
* inotify and can then recheck. */
busy = is_card_busy(path_get_card_id(d->path));
pa_log_debug("%s is busy: %s", d->path, pa_yes_no(busy));
if (!busy) {
/* So, why do we rate limit here? It's certainly ugly,
* but there seems to be no other way. Problem is
* this: if we are unable to configure/probe an audio
* device after opening it we will close it again and
* the module initialization will fail. This will then
* cause an inotify event on the device node which
* will be forwarded to us. We then try to reopen the
* audio device again, practically entering a busy
* loop.
*
* A clean fix would be if we would be able to ignore
* our own inotify close events. However, inotify
* lacks such functionality. Also, during probing of
* the device we cannot really distinguish between
* other processes causing EBUSY or ourselves, which
* means we have no way to figure out if the probing
* during opening was canceled by a "try again"
* failure or a "fatal" failure. */
if (pa_ratelimit_test(&d->ratelimit, PA_LOG_DEBUG)) {
pa_log_debug("Loading module-alsa-card with arguments '%s'", d->args);
m = pa_module_load(u->core, "module-alsa-card", d->args);
if (m) {
d->module = m->index;
pa_log_info("Card %s (%s) module loaded.", d->path, d->card_name);
} else
pa_log_info("Card %s (%s) failed to load module.", d->path, d->card_name);
} else
pa_log_warn("Tried to configure %s (%s) more often than %u times in %llus",
d->path,
d->card_name,
d->ratelimit.burst,
(long long unsigned) (d->ratelimit.interval / PA_USEC_PER_SEC));
}
}
} else {
/* If we are already loaded update suspend status with
* accessible boolean */
if ((card = pa_namereg_get(u->core, d->card_name, PA_NAMEREG_CARD))) {
pa_log_debug("%s all sinks and sources of card %s.", accessible ? "Resuming" : "Suspending", d->card_name);
pa_card_suspend(card, !accessible, PA_SUSPEND_SESSION);
}
}
}
static void resolver_cb(
AvahiServiceResolver *r,
AvahiIfIndex interface, AvahiProtocol protocol,
AvahiResolverEvent event,
const char *name, const char *type, const char *domain,
const char *host_name, const AvahiAddress *a, uint16_t port,
AvahiStringList *txt,
AvahiLookupResultFlags flags,
void *userdata) {
struct userdata *u = userdata;
struct tunnel *tnl;
pa_assert(u);
tnl = tunnel_new(interface, protocol, name, type, domain);
if (event != AVAHI_RESOLVER_FOUND)
pa_log("Resolving of '%s' failed: %s", name, avahi_strerror(avahi_client_errno(u->client)));
else {
char *device = NULL, *nicename, *dname, *vname, *args;
char at[AVAHI_ADDRESS_STR_MAX];
AvahiStringList *l;
pa_module *m;
if ((nicename = strstr(name, "@"))) {
++nicename;
if (strlen(nicename) > 0) {
pa_log_debug("Found RAOP: %s", nicename);
nicename = pa_escape(nicename, "\"'");
} else
nicename = NULL;
}
for (l = txt; l; l = l->next) {
char *key, *value;
pa_assert_se(avahi_string_list_get_pair(l, &key, &value, NULL) == 0);
pa_log_debug("Found key: '%s' with value: '%s'", key, value);
if (pa_streq(key, "device")) {
pa_xfree(device);
device = value;
value = NULL;
}
avahi_free(key);
avahi_free(value);
}
if (device)
dname = pa_sprintf_malloc("raop.%s.%s", host_name, device);
else
dname = pa_sprintf_malloc("raop.%s", host_name);
if (!(vname = pa_namereg_make_valid_name(dname))) {
pa_log("Cannot construct valid device name from '%s'.", dname);
avahi_free(device);
pa_xfree(dname);
goto finish;
}
pa_xfree(dname);
if (nicename) {
args = pa_sprintf_malloc("server=[%s]:%u "
"sink_name=%s "
"sink_properties='device.description=\"%s\"'",
avahi_address_snprint(at, sizeof(at), a), port,
vname,
nicename);
pa_xfree(nicename);
} else {
args = pa_sprintf_malloc("server=[%s]:%u "
"sink_name=%s",
avahi_address_snprint(at, sizeof(at), a), port,
vname);
}
pa_log_debug("Loading module-raop-sink with arguments '%s'", args);
if ((m = pa_module_load(u->core, "module-raop-sink", args))) {
tnl->module_index = m->index;
pa_hashmap_put(u->tunnels, tnl, tnl);
tnl = NULL;
}
pa_xfree(vname);
pa_xfree(args);
avahi_free(device);
}
finish:
avahi_service_resolver_free(r);
if (tnl)
tunnel_free(tnl);
}
static void on_set_debug(pa_core* c, pa_proplist* p, int debug_sink_id, const char* ext_args)
{
const char* device_name = pa_proplist_gets(p, PROPLIST_KEY_DEVICE);
if (!device_name) {
pa_log_error("device not specific!");
return;
}
int device_id = atoi(device_name);
pa_sink* sink = NULL;
pa_source* source = NULL;
sink = find_sink(c, device_id);
if (!sink) {
source = find_source(c, device_id);
}
if (!sink && !source) {
pa_log_error("sink/source of device id %s not found!", device_name);
return;
}
pa_sample_spec ss;
pa_channel_map map;
if (sink) {
ss = sink->sample_spec;
map = sink->channel_map;
}
else {
ss = source->sample_spec;
map = source->channel_map;
}
if (debug_sink_id == EAUDIO_STREAM_DEVICE_VIRTUALOUPUT_REMOTE) {
ss.rate = 8000;
ss.format = PA_SAMPLE_U8;
ss.channels = 1;
map.channels = 1;
}
char sink_name[64];
GET_PLUGIN_NAME(sink_name, debug_sink_id);
pa_module* link_module = NULL;
const char* str_func = pa_proplist_gets(p, PROPLIST_VALUE_FUNC);
bool func_on = true;
if (str_func) {
func_on = !strcmp(str_func, PROPLIST_VALUE_TRUE);
}
if (sink) {
link_module = sink->module;
}
else if (source) {
link_module = source->module;
}
if (func_on) {
pa_pre_load_func_t f = pa_get_user_data(PA_USER_SINK_PRELOAD_FUNC);
if (f) {
f(sink_name, c, &ss, &map, ext_args);
}
pa_sink* remote_sink = pa_namereg_get(c, sink_name, PA_NAMEREG_SINK);
if (!remote_sink) {
pa_log_error("remote-sink load failed");
return;
}
char args[256] = { 0 };
char loopback_name[128] = { 0 };
const char* i_name = NULL;
const char* o_name = NULL;
if (sink) {
i_name = sink->monitor_source->name;
o_name = remote_sink->name;
}
else if (source) {
i_name = source->name;
o_name = remote_sink->name;
}
pa_snprintf(loopback_name, sizeof(loopback_name), "Loopback(%s->%s)", i_name, o_name);
pa_snprintf(args, sizeof(args), "name=%s source=%s sink=%s token=%u %s", loopback_name, i_name, o_name, MAGIC_TOKEN_ID, ext_args ? ext_args : "");
pa_log_info("load-module module-loopback args: %s", args);
pa_module* m = pa_module_load(c, "module-loopback", args);
if (!m) {
pa_log_error("on_set_debug module load err.");
return;
}
if (link_module) {
pa_proplist_sets(link_module->proplist, PA_PROP_LINK_LOOPBACK_ID, loopback_name);
}
}
else {
pa_sink* remote_sink = find_sink(c, debug_sink_id);
if (remote_sink) {
pa_log_info("unloading remote_sink %d", debug_sink_id);
pa_module_unload_request(remote_sink->module, true);
}
}
}