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module-protocol-pulse: Add Avahi zeroconf publish module

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This commit is contained in:
Sanchayan Maity 2021-06-10 18:51:11 +05:30 • committed by Wim Taymans
parent e66125ede0
commit cf93fd7f9a
4 changed files with 721 additions and 18 deletions
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48
src/modules/meson.build
View file

@ -131,25 +131,37 @@ if dbus_dep.found()
pipewire_module_protocol_pulse_deps += dbus_dep
endif
pipewire_module_protocol_pulse_sources = [
'module-protocol-pulse.c',
'module-protocol-pulse/manager.c',
'module-protocol-pulse/pulse-server.c',
'module-protocol-pulse/modules/module-combine-sink.c',
'module-protocol-pulse/modules/module-echo-cancel.c',
'module-protocol-pulse/modules/module-ladspa-sink.c',
'module-protocol-pulse/modules/module-ladspa-source.c',
'module-protocol-pulse/modules/module-loopback.c',
'module-protocol-pulse/modules/module-native-protocol-tcp.c',
'module-protocol-pulse/modules/module-null-sink.c',
'module-protocol-pulse/modules/module-pipe-sink.c',
'module-protocol-pulse/modules/module-remap-sink.c',
'module-protocol-pulse/modules/module-remap-source.c',
'module-protocol-pulse/modules/module-simple-protocol-tcp.c',
'module-protocol-pulse/modules/module-tunnel-sink.c',
'module-protocol-pulse/modules/module-tunnel-source.c',
'module-protocol-pulse/modules/module-zeroconf-discover.c',
]
if avahi_dep.found()
pipewire_module_protocol_pulse_sources += [
'module-protocol-pulse/modules/module-zeroconf-publish.c',
'module-zeroconf-discover/avahi-poll.c',
]
pipewire_module_protocol_pulse_deps += avahi_dep
cdata.set('HAVE_AVAHI', 1)
endif
pipewire_module_protocol_pulse = shared_library('pipewire-module-protocol-pulse',
[ 'module-protocol-pulse.c',
'module-protocol-pulse/manager.c',
'module-protocol-pulse/pulse-server.c',
'module-protocol-pulse/modules/module-combine-sink.c',
'module-protocol-pulse/modules/module-echo-cancel.c',
'module-protocol-pulse/modules/module-ladspa-sink.c',
'module-protocol-pulse/modules/module-ladspa-source.c',
'module-protocol-pulse/modules/module-loopback.c',
'module-protocol-pulse/modules/module-native-protocol-tcp.c',
'module-protocol-pulse/modules/module-null-sink.c',
'module-protocol-pulse/modules/module-pipe-sink.c',
'module-protocol-pulse/modules/module-remap-sink.c',
'module-protocol-pulse/modules/module-remap-source.c',
'module-protocol-pulse/modules/module-simple-protocol-tcp.c',
'module-protocol-pulse/modules/module-tunnel-sink.c',
'module-protocol-pulse/modules/module-tunnel-source.c',
'module-protocol-pulse/modules/module-zeroconf-discover.c',
],
pipewire_module_protocol_pulse_sources,
include_directories : [configinc, spa_inc],
install : true,
install_dir : modules_install_dir,

3
src/modules/module-protocol-pulse/module.c
View file

@ -232,6 +232,9 @@ static const struct module_info module_list[] = {
{ "module-tunnel-sink", create_module_tunnel_sink, },
{ "module-tunnel-source", create_module_tunnel_source, },
{ "module-zeroconf-discover", create_module_zeroconf_discover, },
#ifdef HAVE_AVAHI
{ "module-zeroconf-publish", create_module_zeroconf_publish, },
#endif
{ NULL, }
};

687
src/modules/module-protocol-pulse/modules/module-zeroconf-publish.c Normal file
View file

@ -0,0 +1,687 @@
/* PipeWire
*
* Copyright © 2021 Wim Taymans <wim.taymans@gmail.com>
* Copyright © 2021 Sanchayan Maity <sanchayan@asymptotic.io>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <pipewire/pipewire.h>
#include "../collect.h"
#include "../defs.h"
#include "../manager.h"
#include "../module.h"
#include "../pulse-server.h"
#include "registry.h"
#include "sys/utsname.h"
#include "../../module-zeroconf-discover/avahi-poll.h"
#include <avahi-client/client.h>
#include <avahi-client/publish.h>
#include <avahi-common/alternative.h>
#include <avahi-common/error.h>
#include <avahi-common/domain.h>
#define SERVICE_TYPE_SINK "_pulse-sink._tcp"
#define SERVICE_TYPE_SOURCE "_pulse-source._tcp"
#define SERVICE_TYPE_SERVER "_pulse-server._tcp"
#define SERVICE_SUBTYPE_SINK_HARDWARE "_hardware._sub."SERVICE_TYPE_SINK
#define SERVICE_SUBTYPE_SINK_VIRTUAL "_virtual._sub."SERVICE_TYPE_SINK
#define SERVICE_SUBTYPE_SOURCE_HARDWARE "_hardware._sub."SERVICE_TYPE_SOURCE
#define SERVICE_SUBTYPE_SOURCE_VIRTUAL "_virtual._sub."SERVICE_TYPE_SOURCE
#define SERVICE_SUBTYPE_SOURCE_MONITOR "_monitor._sub."SERVICE_TYPE_SOURCE
#define SERVICE_SUBTYPE_SOURCE_NON_MONITOR "_non-monitor._sub."SERVICE_TYPE_SOURCE
enum service_subtype {
SUBTYPE_HARDWARE,
SUBTYPE_VIRTUAL,
SUBTYPE_MONITOR
};
struct service {
void *key;
struct module_zeroconf_publish_data *userdata;
AvahiEntryGroup *entry_group;
char *service_name;
const char *service_type;
enum service_subtype subtype;
char *name;
bool is_sink;
struct sample_spec ss;
struct channel_map cm;
struct pw_properties *props;
};
struct module_zeroconf_publish_data {
struct module *module;
struct pw_core *core;
struct pw_manager *manager;
struct spa_hook core_listener;
struct spa_hook manager_listener;
unsigned int port;
AvahiPoll *avahi_poll;
AvahiClient *client;
bool entry_group_free;
};
static void on_core_error(void *data, uint32_t id, int seq, int res, const char *message)
{
struct module_zeroconf_publish_data *d = data;
struct module *module = d->module;
pw_log_error("error id:%u seq:%d res:%d (%s): %s",
id, seq, res, spa_strerror(res), message);
if (id == PW_ID_CORE && res == -EPIPE)
module_schedule_unload(module);
}
static const struct pw_core_events core_events = {
PW_VERSION_CORE_EVENTS,
.error = on_core_error,
};
static char *get_service_name(struct pw_manager_object *o)
{
const char *hn, *un, *n;
char *service_name;
hn = pw_get_host_name();
un = pw_get_user_name();
n = pw_properties_get(o->props, PW_KEY_NODE_DESCRIPTION);
service_name = calloc(1, AVAHI_LABEL_MAX - 1);
snprintf(service_name, AVAHI_LABEL_MAX - 1, "%s@%s: %s", un, hn, n);
return service_name;
}
static int service_free(void *d, struct pw_manager_object *o) {
struct service *s;
char *service_name;
if (!pw_manager_object_is_sink(o) && !pw_manager_object_is_source(o))
return 0;
service_name = get_service_name(o);
s = pw_manager_object_add_data(o, service_name, sizeof(struct service));
if (s == NULL) {
pw_log_error("Could not find service %s to remove", service_name);
free(service_name);
return 0;
}
free(service_name);
spa_assert(s);
if (s->entry_group) {
pw_log_debug("Removing entry group for %s.", s->service_name);
avahi_entry_group_free(s->entry_group);
}
if (s->service_name) {
pw_log_debug("Removing service: %s", s->service_name);
free(s->service_name);
}
if (s->name) {
pw_log_debug("Removing service for node: %s", s->name);
free(s->name);
}
if (s->props)
pw_properties_free(s->props);
return 0;
}
static int unpublish_service(void *data, struct pw_manager_object *o) {
struct module_zeroconf_publish_data *d = data;
struct service *s;
char *service_name;
if (!pw_manager_object_is_sink(o) && !pw_manager_object_is_source(o))
return 0;
service_name = get_service_name(o);
s = pw_manager_object_add_data(o, service_name, sizeof(struct service));
if (s == NULL) {
pw_log_error("Could not find service %s to remove", service_name);
free(service_name);
return 0;
}
free(service_name);
spa_assert(s);
if (s->entry_group) {
if (d->entry_group_free) {
pw_log_debug("Removing entry group for %s.", s->service_name);
avahi_entry_group_free(s->entry_group);
s->entry_group = NULL;
} else {
avahi_entry_group_reset(s->entry_group);
pw_log_debug("Resetting entry group for %s.", s->service_name);
}
}
return 0;
}
static void unpublish_all_services(struct module_zeroconf_publish_data *d, bool entry_group_free)
{
d->entry_group_free = entry_group_free;
pw_manager_for_each_object(d->manager, unpublish_service, d);
}
static char* channel_map_snprint(char *s, size_t l, const struct channel_map *map)
{
unsigned channel;
bool first = true;
char *e;
spa_assert(s);
spa_assert(l > 0);
spa_assert(map);
if (!channel_map_valid(map)) {
snprintf(s, l, "(invalid)");
return s;
}
*(e = s) = 0;
for (channel = 0; channel < map->channels && l > 1; channel++) {
l -= snprintf(e, l, "%s%s",
first ? "" : ",",
channel_id2name(channel_pa2id(map->map[channel])));
e = strchr(e, 0);
first = false;
}
return s;
}
static void get_service_data(struct module_zeroconf_publish_data *d,
struct service *s, struct pw_manager_object *o)
{
bool is_sink = pw_manager_object_is_sink(o);
bool is_source = pw_manager_object_is_source(o);
struct pw_node_info *info = o->info;
const char *name, *desc, *str;
uint32_t card_id = SPA_ID_INVALID;
struct pw_manager *manager = d->manager;
struct pw_manager_object *card = NULL;
struct card_info card_info = CARD_INFO_INIT;
struct device_info dev_info = is_sink ?
DEVICE_INFO_INIT(PW_DIRECTION_OUTPUT) : DEVICE_INFO_INIT(PW_DIRECTION_INPUT);
uint32_t flags = 0;
if (info == NULL || info->props == NULL)
return;
name = spa_dict_lookup(info->props, PW_KEY_NODE_NAME);
if ((desc = spa_dict_lookup(info->props, PW_KEY_NODE_DESCRIPTION)) == NULL)
desc = name ? name : "Unknown";
if (name == NULL)
name = "unknown";
if ((str = spa_dict_lookup(info->props, PW_KEY_DEVICE_ID)) != NULL)
card_id = (uint32_t)atoi(str);
if ((str = spa_dict_lookup(info->props, "card.profile.device")) != NULL)
dev_info.device = (uint32_t)atoi(str);
if (card_id != SPA_ID_INVALID) {
struct selector sel = { .id = card_id, .type = pw_manager_object_is_card, };
card = select_object(manager, &sel);
}
if (card)
collect_card_info(card, &card_info);
collect_device_info(o, card, &dev_info, false);
if ((str = spa_dict_lookup(info->props, PW_KEY_DEVICE_API)) != NULL) {
if (pw_manager_object_is_sink(o))
flags |= SINK_HARDWARE;
else if (pw_manager_object_is_source(o))
flags |= SOURCE_HARDWARE;
}
if (is_sink) {
s->is_sink = true;
s->service_type = SERVICE_TYPE_SINK;
s->ss = dev_info.ss;
s->cm = dev_info.map;
s->name = strdup(name);
s->props = pw_properties_copy(o->props);
s->subtype = flags & SINK_HARDWARE ? SUBTYPE_HARDWARE : SUBTYPE_VIRTUAL;
} else if (is_source) {
s->is_sink = false;
s->service_type = SERVICE_TYPE_SOURCE;
s->name = strdup(name);
s->props = pw_properties_copy(o->props);
s->subtype = flags & SOURCE_HARDWARE ? SUBTYPE_HARDWARE : SUBTYPE_VIRTUAL;
} else
spa_assert_not_reached();
}
static struct service *get_service(struct module_zeroconf_publish_data *d, struct pw_manager_object *o)
{
struct service *s;
char *service_name;
service_name = get_service_name(o);
s = pw_manager_object_add_data(o, service_name, sizeof(struct service));
spa_assert(s);
s->key = o;
s->userdata = d;
s->entry_group = NULL;
s->service_name = service_name;
get_service_data(d, s, o);
return s;
}
static AvahiStringList* txt_record_server_data(struct pw_core_info *info, AvahiStringList *l)
{
const char *t;
struct utsname u;
static char sysname[256];
spa_assert(info);
spa_assert(uname(&u) >= 0);
l = avahi_string_list_add_pair(l, "server-version", PACKAGE_NAME" "PACKAGE_VERSION);
t = pw_get_user_name();
l = avahi_string_list_add_pair(l, "user-name", t);
snprintf(sysname, sizeof(sysname), "%s %s %s", u.sysname, u.machine, u.release);
l = avahi_string_list_add_pair(l, "uname", sysname);
t = pw_get_host_name();
l = avahi_string_list_add_pair(l, "fqdn", t);
l = avahi_string_list_add_printf(l, "cookie=0x%08x", info->cookie);
return l;
}
static void publish_service(struct service *s);
static void service_entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata)
{
struct service *s = userdata;
spa_assert(s);
switch (state) {
case AVAHI_ENTRY_GROUP_ESTABLISHED:
pw_log_info("Successfully established service %s.", s->service_name);
break;
case AVAHI_ENTRY_GROUP_COLLISION:
char *t;
t = avahi_alternative_service_name(s->service_name);
pw_log_info("Name collision, renaming %s to %s.", s->service_name, t);
free(s->service_name);
s->service_name = t;
publish_service(s);
break;
case AVAHI_ENTRY_GROUP_FAILURE:
pw_log_error("Failed to register service: %s",
avahi_strerror(avahi_client_errno(avahi_entry_group_get_client(g))));
avahi_entry_group_free(g);
s->entry_group = NULL;
break;
case AVAHI_ENTRY_GROUP_UNCOMMITED:
case AVAHI_ENTRY_GROUP_REGISTERING:
break;
}
}
#define PA_CHANNEL_MAP_SNPRINT_MAX 336
static void publish_service(struct service *s)
{
AvahiStringList *txt = NULL;
const char *t;
char cm[PA_CHANNEL_MAP_SNPRINT_MAX];
const char * const subtype_text[] = {
[SUBTYPE_HARDWARE] = "hardware",
[SUBTYPE_VIRTUAL] = "virtual",
[SUBTYPE_MONITOR] = "monitor"
};
spa_assert(s);
if (!s->userdata->client || avahi_client_get_state(s->userdata->client) != AVAHI_CLIENT_S_RUNNING)
return;
if (!s->entry_group) {
if (!(s->entry_group =
avahi_entry_group_new(s->userdata->client, service_entry_group_callback, s))) {
pw_log_error("avahi_entry_group_new(): %s",
avahi_strerror(avahi_client_errno(s->userdata->client)));
goto finish;
}
} else
avahi_entry_group_reset(s->entry_group);
txt = txt_record_server_data(s->userdata->manager->info, txt);
txt = avahi_string_list_add_pair(txt, "device", s->name);
txt = avahi_string_list_add_printf(txt, "rate=%u", s->ss.rate);
txt = avahi_string_list_add_printf(txt, "channels=%u", s->ss.channels);
txt = avahi_string_list_add_pair(txt, "format", format_id2name(s->ss.format));
txt = avahi_string_list_add_pair(txt, "channel_map", channel_map_snprint(cm, sizeof(cm), &s->cm));
txt = avahi_string_list_add_pair(txt, "subtype", subtype_text[s->subtype]);
if ((t = pw_properties_get(s->props, PW_KEY_NODE_DESCRIPTION)))
txt = avahi_string_list_add_pair(txt, "description", t);
if ((t = pw_properties_get(s->props, PW_KEY_DEVICE_VENDOR_NAME)))
txt = avahi_string_list_add_pair(txt, "vendor-name", t);
if ((t = pw_properties_get(s->props, PW_KEY_DEVICE_PRODUCT_NAME)))
txt = avahi_string_list_add_pair(txt, "product-name", t);
if ((t = pw_properties_get(s->props, PW_KEY_DEVICE_CLASS)))
txt = avahi_string_list_add_pair(txt, "class", t);
if ((t = pw_properties_get(s->props, PW_KEY_DEVICE_FORM_FACTOR)))
txt = avahi_string_list_add_pair(txt, "form-factor", t);
if ((t = pw_properties_get(s->props, PW_KEY_DEVICE_ICON_NAME)))
txt = avahi_string_list_add_pair(txt, "icon-name", t);
if (avahi_entry_group_add_service_strlst(
s->entry_group,
AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
0,
s->service_name,
s->service_type,
NULL,
NULL,
s->userdata->port,
txt) < 0) {
pw_log_error("avahi_entry_group_add_service_strlst(): %s",
avahi_strerror(avahi_client_errno(s->userdata->client)));
goto finish;
}
if (avahi_entry_group_add_service_subtype(
s->entry_group,
AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
0,
s->service_name,
s->service_type,
NULL,
s->is_sink ? (s->subtype == SUBTYPE_HARDWARE ? SERVICE_SUBTYPE_SINK_HARDWARE : SERVICE_SUBTYPE_SINK_VIRTUAL) :
(s->subtype == SUBTYPE_HARDWARE ? SERVICE_SUBTYPE_SOURCE_HARDWARE : (s->subtype == SUBTYPE_VIRTUAL ? SERVICE_SUBTYPE_SOURCE_VIRTUAL : SERVICE_SUBTYPE_SOURCE_MONITOR))) < 0) {
pw_log_error("avahi_entry_group_add_service_subtype(): %s",
avahi_strerror(avahi_client_errno(s->userdata->client)));
goto finish;
}
if (!s->is_sink && s->subtype != SUBTYPE_MONITOR) {
if (avahi_entry_group_add_service_subtype(
s->entry_group,
AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
0,
s->service_name,
SERVICE_TYPE_SOURCE,
NULL,
SERVICE_SUBTYPE_SOURCE_NON_MONITOR) < 0) {
pw_log_error("avahi_entry_group_add_service_subtype(): %s",
avahi_strerror(avahi_client_errno(s->userdata->client)));
goto finish;
}
}
if (avahi_entry_group_commit(s->entry_group) < 0) {
pw_log_error("avahi_entry_group_commit(): %s",
avahi_strerror(avahi_client_errno(s->userdata->client)));
goto finish;
}
pw_log_info("Successfully created entry group for %s.", s->service_name);
finish:
avahi_string_list_free(txt);
}
static void client_callback(AvahiClient *c, AvahiClientState state, void *d)
{
struct module_zeroconf_publish_data *data = d;
spa_assert(c);
spa_assert(data);
data->client = c;
switch (state) {
case AVAHI_CLIENT_S_RUNNING:
break;
case AVAHI_CLIENT_S_COLLISION:
pw_log_error("Host name collision");
unpublish_all_services(d, false);
break;
case AVAHI_CLIENT_FAILURE:
if (avahi_client_errno(c) == AVAHI_ERR_DISCONNECTED) {
int error;
pw_log_debug("Avahi daemon disconnected.");
unpublish_all_services(d, true);
avahi_client_free(data->client);
if (!(data->client = avahi_client_new(data->avahi_poll,
AVAHI_CLIENT_NO_FAIL, client_callback, data, &error))) {
pw_log_error("avahi_client_new() failed: %s",
avahi_strerror(error));
module_schedule_unload(data->module);
}
}
break;
default:
break;
}
}
static void manager_updated(void *d, struct pw_manager_object *o)
{
struct service *s;
char *service_name;
if (!pw_manager_object_is_sink(o) && !pw_manager_object_is_source(o))
return;
service_name = get_service_name(o);
s = pw_manager_object_add_data(o, service_name, sizeof(struct service));
free(service_name);
spa_assert(s);
publish_service(s);
}
static void manager_removed(void *d, struct pw_manager_object *o)
{
if (!pw_manager_object_is_sink(o) && !pw_manager_object_is_source(o))
return;
service_free(d, o);
}
static void manager_added(void *d, struct pw_manager_object *o)
{
struct service *s;
if (!pw_manager_object_is_sink(o) && !pw_manager_object_is_source(o))
return;
s = get_service(d, o);
publish_service(s);
}
static const struct pw_manager_events manager_events = {
PW_VERSION_MANAGER_EVENTS,
.added = manager_added,
.updated = manager_updated,
.removed = manager_removed,
};
static int module_zeroconf_publish_load(struct client *client, struct module *module)
{
struct module_zeroconf_publish_data *data = module->user_data;
struct pw_loop *loop;
int error;
data->core = pw_context_connect(module->impl->context,
pw_properties_copy(client->props), 0);
if (data->core == NULL) {
pw_log_error("Failed to connect to pipewire context");
return -errno;
}
pw_core_add_listener(data->core,
&data->core_listener,
&core_events, data);
loop = pw_context_get_main_loop(module->impl->context);
data->avahi_poll = pw_avahi_poll_new(loop);
data->client = avahi_client_new(data->avahi_poll, AVAHI_CLIENT_NO_FAIL,
client_callback, data, &error);
if (!data->client) {
pw_log_error("avahi_client_new() failed: %s", avahi_strerror(error));
pw_avahi_poll_free(data->avahi_poll);
return -errno;
}
data->manager = pw_manager_new(data->core);
if (client->manager == NULL) {
pw_log_error("Failed to create pipewire manager");
avahi_client_free(data->client);
pw_avahi_poll_free(data->avahi_poll);
return -errno;
}
pw_manager_add_listener(data->manager, &data->manager_listener,
&manager_events, data);
pw_log_info("loaded module %p id:%u name:%s", module, module->idx, module->name);
module_emit_loaded(module, 0);
return 0;
}
static int module_zeroconf_publish_unload(struct client *client, struct module *module)
{
struct module_zeroconf_publish_data *d = module->user_data;
pw_log_info("unload module %p id:%u name:%s", module, module->idx, module->name);
pw_manager_for_each_object(d->manager, service_free, d);
if (d->client)
avahi_client_free(d->client);
if (d->avahi_poll)
pw_avahi_poll_free(d->avahi_poll);
if (d->manager != NULL) {
spa_hook_remove(&d->manager_listener);
pw_manager_destroy(d->manager);
}
if (d->core != NULL) {
spa_hook_remove(&d->core_listener);
pw_core_disconnect(d->core);
}
return 0;
}
static const struct module_methods module_zeroconf_publish_methods = {
VERSION_MODULE_METHODS,
.load = module_zeroconf_publish_load,
.unload = module_zeroconf_publish_unload,
};
static const struct spa_dict_item module_zeroconf_publish_info[] = {
{ PW_KEY_MODULE_AUTHOR, "Sanchayan Maity <sanchayan@asymptotic.io" },
{ PW_KEY_MODULE_DESCRIPTION, "mDNS/DNS-SD Service Publish" },
{ PW_KEY_MODULE_USAGE, "port=<TCP port number>" },
{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
};
struct module *create_module_zeroconf_publish(struct impl *impl, const char *argument)
{
struct module *module;
struct module_zeroconf_publish_data *d;
struct pw_properties *props = NULL;
const char *port;
int res;
props = pw_properties_new_dict(&SPA_DICT_INIT_ARRAY(module_zeroconf_publish_info));
if (!props) {
res = -errno;
goto out;
}
if (argument)
module_args_add_props(props, argument);
module = module_new(impl, &module_zeroconf_publish_methods, sizeof(*d));
if (module == NULL) {
res = -errno;
goto out;
}
module->props = props;
d = module->user_data;
d->module = module;
if ((port = pw_properties_get(props, "port")) == NULL)
d->port = PW_PROTOCOL_PULSE_DEFAULT_PORT;
else
d->port = atoi(port);
return module;
out:
pw_properties_free(props);
errno = -res;
return NULL;
}

1
src/modules/module-protocol-pulse/modules/registry.h
View file

@ -42,5 +42,6 @@ struct module *create_module_tunnel_source(struct impl *impl, const char *argume
struct module *create_module_simple_protocol_tcp(struct impl *impl, const char *argument);
struct module *create_module_pipe_sink(struct impl *impl, const char *argument);
struct module *create_module_zeroconf_discover(struct impl *impl, const char *argument);
struct module *create_module_zeroconf_publish(struct impl *impl, const char *argument);
#endif