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module-rtp: add audio params to avahi txt

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This commit is contained in:
Wim Taymans 2023-03-01 18:01:26 +01:00
parent 4507f7ab39
commit 4dc3e0d967
1 changed files with 48 additions and 37 deletions
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85
src/modules/module-rtp-session.c
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@ -116,8 +116,8 @@ PW_LOG_TOPIC_STATIC(mod_topic, "mod." NAME);
#define BUFFER_MASK (BUFFER_SIZE-1)
#define DEFAULT_FORMAT "S16BE"
#define DEFAULT_RATE 48000
#define DEFAULT_CHANNELS 2
#define DEFAULT_RATE "48000"
#define DEFAULT_CHANNELS "2"
#define DEFAULT_POSITION "[ FL FR ]"
#define DEFAULT_CONTROL_IP "0.0.0.0"
@ -1052,15 +1052,33 @@ static void free_service(struct service *s)
free(s);
}
static const char *get_service_name(struct impl *impl)
{
const char *str;
str = pw_properties_get(impl->props, "rtp.media");
if (spa_streq(str, "midi"))
return "_apple-midi._udp";
else if (spa_streq(str, "audio"))
return "_pipewire-audio._udp";
return NULL;
}
static struct service *make_service(struct impl *impl, const struct service_info *info,
AvahiStringList *txt)
{
struct service *s;
struct service *s = NULL;
char at[AVAHI_ADDRESS_STR_MAX];
struct session *sess;
int res;
struct pw_properties *props = NULL;
const char *str;
const char *service_name, *str;
/* check for compatible session */
service_name = get_service_name(impl);
if (!spa_streq(service_name, info->type)) {
res = 0;
goto error;
}
s = calloc(1, sizeof(*s));
if (s == NULL)
@ -1069,7 +1087,7 @@ static struct service *make_service(struct impl *impl, const struct service_info
s->impl = impl;
spa_list_append(&impl->service_list, &s->link);
props = pw_properties_new(NULL, NULL);
props = pw_properties_copy(impl->stream_props);
if (props == NULL) {
res = -errno;
goto error;
@ -1094,16 +1112,6 @@ static struct service *make_service(struct impl *impl, const struct service_info
pw_properties_setf(props, "destination.ip", "%s", at);
pw_properties_setf(props, "destination.port", "%u", s->info.port);
if (spa_streq(s->info.type, "_apple-midi._udp"))
pw_properties_set(props, "rtp.media", "midi");
else if (spa_streq(s->info.type, "_pipewire-audio._udp"))
pw_properties_set(props, "rtp.media", "audio");
else {
pw_log_error("unknown type %s", s->info.type);
res = -EINVAL;
goto error;
}
if ((str = strstr(s->info.name, "@"))) {
str++;
if (strlen(str) > 0)
@ -1131,7 +1139,8 @@ static struct service *make_service(struct impl *impl, const struct service_info
return s;
error:
pw_properties_free(props);
free_service(s);
if (s != NULL)
free_service(s);
errno = -res;
return NULL;
}
@ -1156,7 +1165,6 @@ static void resolver_cb(AvahiServiceResolver *r, AvahiIfIndex interface, AvahiPr
AvahiLookupResultFlags flags, void *userdata)
{
struct impl *impl = userdata;
struct service *s;
struct service_info sinfo;
if (event != AVAHI_RESOLVER_FOUND) {
@ -1174,12 +1182,7 @@ static void resolver_cb(AvahiServiceResolver *r, AvahiIfIndex interface, AvahiPr
.address = *a,
.port = port);
s = make_service(impl, &sinfo, txt);
if (s == NULL) {
pw_log_error("Can't make service: %m");
goto done;
}
make_service(impl, &sinfo, txt);
done:
avahi_service_resolver_free(r);
}
@ -1225,17 +1228,6 @@ static void browser_cb(AvahiServiceBrowser *b, AvahiIfIndex interface, AvahiProt
}
}
static const char *get_service_name(struct impl *impl)
{
const char *str;
str = pw_properties_get(impl->props, "rtp.media");
if (spa_streq(str, "midi"))
return "_apple-midi._udp";
else if (spa_streq(str, "audio"))
return "_pipewire-audio._udp";
return NULL;
}
static int make_browser(struct impl *impl)
{
const char *service_name;
@ -1280,7 +1272,8 @@ static void entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state,
static int make_announce(struct impl *impl)
{
int res;
const char *service_name;
const char *service_name, *str;
AvahiStringList *txt = NULL;
if ((service_name = get_service_name(impl)) == NULL)
return -ENOTSUP;
@ -1296,11 +1289,28 @@ static int make_announce(struct impl *impl)
}
avahi_entry_group_reset(impl->group);
res = avahi_entry_group_add_service(impl->group,
if (spa_streq(service_name, "_pipewire-audio._udp")) {
if ((str = pw_properties_get(impl->stream_props, "audio.format")) == NULL)
str = DEFAULT_FORMAT;
txt = avahi_string_list_add_pair(txt, "audio.format", str);
if ((str = pw_properties_get(impl->stream_props, "audio.rate")) == NULL)
str = DEFAULT_RATE;
txt = avahi_string_list_add_pair(txt, "audio.rate", str);
if ((str = pw_properties_get(impl->stream_props, "audio.channels")) == NULL)
str = DEFAULT_CHANNELS;
txt = avahi_string_list_add_pair(txt, "audio.channels", str);
if ((str = pw_properties_get(impl->stream_props, "audio.position")) == NULL)
str = DEFAULT_POSITION;
txt = avahi_string_list_add_pair(txt, "audio.position", str);
}
res = avahi_entry_group_add_service_strlst(impl->group,
AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
(AvahiPublishFlags)0, impl->session_name,
service_name, NULL, NULL,
impl->ctrl_port, NULL);
impl->ctrl_port, txt);
avahi_string_list_free(txt);
if (res < 0) {
pw_log_error("can't add service: %s",
@ -1416,6 +1426,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
copy_props(impl, props, PW_KEY_NODE_CHANNELNAMES);
copy_props(impl, props, PW_KEY_MEDIA_NAME);
copy_props(impl, props, PW_KEY_MEDIA_CLASS);
copy_props(impl, props, "rtp.media");
str = pw_properties_get(props, "local.ifname");
impl->ifname = str ? strdup(str) : NULL;