static KmsIRtpConnection *
kms_webrtc_session_create_connection (KmsBaseRtpSession * base_rtp_sess,
SdpMediaConfig * mconf, const gchar * name, guint16 min_port,
guint16 max_port)
{
KmsWebrtcSession *self = KMS_WEBRTC_SESSION (base_rtp_sess);
GstSDPMedia *media = kms_sdp_media_config_get_sdp_media (mconf);
KmsWebRtcBaseConnection *conn;
self->min_port = min_port;
self->max_port = max_port;
if (g_strcmp0 (gst_sdp_media_get_proto (media), "DTLS/SCTP") == 0) {
GST_DEBUG_OBJECT (self, "Create SCTP connection");
conn =
KMS_WEBRTC_BASE_CONNECTION (kms_webrtc_sctp_connection_new
(self->agent, self->context, name, min_port, max_port));
} else {
GST_DEBUG_OBJECT (self, "Create RTP connection");
conn =
KMS_WEBRTC_BASE_CONNECTION (kms_webrtc_connection_new
(self->agent, self->context, name));
}
return KMS_I_RTP_CONNECTION (conn);
}
static gboolean
kms_webrtc_session_gather_candidates (KmsWebrtcSession * self)
{
KmsBaseRtpSession *base_rtp_sess = KMS_BASE_RTP_SESSION (self);
GHashTableIter iter;
gpointer key, v;
gboolean ret = TRUE;
GST_DEBUG_OBJECT (self, "Gather candidates");
KMS_SDP_SESSION_LOCK (self);
g_hash_table_iter_init (&iter, base_rtp_sess->conns);
while (g_hash_table_iter_next (&iter, &key, &v)) {
KmsWebRtcBaseConnection *conn = KMS_WEBRTC_BASE_CONNECTION (v);
kms_webrtc_session_set_stun_server_info (self, conn);
kms_webrtc_session_set_relay_info (self, conn);
if (!kms_ice_base_agent_start_gathering_candidates (conn->agent,
conn->stream_id)) {
GST_ERROR_OBJECT (self, "Failed to start candidate gathering for '%s'.",
conn->name);
ret = FALSE;
}
}
KMS_SDP_SESSION_UNLOCK (self);
return ret;
}
KmsWebRtcBaseConnection *
kms_webrtc_session_get_connection (KmsWebrtcSession * self,
SdpMediaConfig * mconf)
{
KmsBaseRtpSession *base_rtp_sess = KMS_BASE_RTP_SESSION (self);
KmsIRtpConnection *conn;
conn = kms_base_rtp_session_get_connection (base_rtp_sess, mconf);
if (conn == NULL) {
return NULL;
}
return KMS_WEBRTC_BASE_CONNECTION (conn);
}
static void
kms_webrtc_base_connection_finalize (GObject * object)
{
KmsWebRtcBaseConnection *self = KMS_WEBRTC_BASE_CONNECTION (object);
GST_DEBUG_OBJECT (self, "finalize");
nice_agent_remove_stream (self->agent, self->stream_id);
g_free (self->name);
g_clear_object (&self->agent);
g_rec_mutex_clear (&self->mutex);
/* chain up */
G_OBJECT_CLASS (kms_webrtc_base_connection_parent_class)->finalize (object);
}
KmsWebRtcConnection *
kms_webrtc_connection_new (NiceAgent * agent, GMainContext * context,
const gchar * name)
{
GObject *obj;
KmsWebRtcBaseConnection *base_conn;
KmsWebRtcConnection *conn;
KmsWebRtcConnectionPrivate *priv;
obj = g_object_new (KMS_TYPE_WEBRTC_CONNECTION, NULL);
base_conn = KMS_WEBRTC_BASE_CONNECTION (obj);
conn = KMS_WEBRTC_CONNECTION (obj);
priv = conn->priv;
if (!kms_webrtc_base_connection_configure (base_conn, agent, name)) {
g_object_unref (obj);
return NULL;
}
priv->rtp_tr =
kms_webrtc_transport_create (agent, base_conn->stream_id,
NICE_COMPONENT_TYPE_RTP);
priv->rtcp_tr =
kms_webrtc_transport_create (agent, base_conn->stream_id,
NICE_COMPONENT_TYPE_RTCP);
if (priv->rtp_tr == NULL || priv->rtcp_tr == NULL) {
GST_ERROR_OBJECT (obj, "Cannot create KmsWebRTCConnection.");
g_object_unref (obj);
return NULL;
}
g_signal_connect (priv->rtp_tr->dtlssrtpenc, "on-key-set",
G_CALLBACK (rtp_connected_cb), conn);
g_signal_connect (priv->rtcp_tr->dtlssrtpenc, "on-key-set",
G_CALLBACK (rtcp_connected_cb), conn);
nice_agent_attach_recv (agent, base_conn->stream_id,
NICE_COMPONENT_TYPE_RTP, context, kms_webrtc_transport_nice_agent_recv_cb,
NULL);
nice_agent_attach_recv (agent, base_conn->stream_id, NICE_COMPONENT_TYPE_RTCP,
context, kms_webrtc_transport_nice_agent_recv_cb, NULL);
return conn;
}
static void
kms_webrtc_rtcp_mux_connection_collect_latency_stats (KmsIRtpConnection * obj,
gboolean enable)
{
KmsWebRtcRtcpMuxConnection *self = KMS_WEBRTC_RTCP_MUX_CONNECTION (obj);
KmsWebRtcBaseConnection *base = KMS_WEBRTC_BASE_CONNECTION (obj);
KMS_WEBRTC_BASE_CONNECTION_LOCK (base);
if (enable) {
kms_webrtc_transport_enable_latency_notification (self->priv->tr,
base->cb, base->user_data, NULL);
} else {
kms_webrtc_transport_disable_latency_notification (self->priv->tr);
}
kms_webrtc_base_connection_collect_latency_stats (obj, enable);
KMS_WEBRTC_BASE_CONNECTION_UNLOCK (base);
}
KmsWebRtcConnection *
kms_webrtc_connection_new (KmsIceBaseAgent * agent, GMainContext * context,
const gchar * name, guint16 min_port, guint16 max_port,
gchar * pem_certificate)
{
GObject *obj;
KmsWebRtcBaseConnection *base_conn;
KmsWebRtcConnection *conn;
KmsWebRtcConnectionPrivate *priv;
obj = g_object_new (KMS_TYPE_WEBRTC_CONNECTION, "max-port", max_port,
"min-port", min_port, NULL);
base_conn = KMS_WEBRTC_BASE_CONNECTION (obj);
conn = KMS_WEBRTC_CONNECTION (obj);
priv = conn->priv;
if (!kms_webrtc_base_connection_configure (base_conn, agent, name)) {
g_object_unref (obj);
return NULL;
}
priv->rtp_tr =
kms_webrtc_transport_new (agent, base_conn->stream_id,
NICE_COMPONENT_TYPE_RTP, pem_certificate);
priv->rtcp_tr =
kms_webrtc_transport_new (agent, base_conn->stream_id,
NICE_COMPONENT_TYPE_RTCP, pem_certificate);
if (priv->rtp_tr == NULL || priv->rtcp_tr == NULL) {
GST_ERROR_OBJECT (obj, "Cannot create KmsWebRTCConnection.");
g_object_unref (obj);
return NULL;
}
g_signal_connect (priv->rtp_tr->sink->dtlssrtpenc, "on-key-set",
G_CALLBACK (rtp_connected_cb), conn);
g_signal_connect (priv->rtcp_tr->sink->dtlssrtpenc, "on-key-set",
G_CALLBACK (rtcp_connected_cb), conn);
return conn;
}
static void
kms_webrtc_rtp_connection_collect_latency_stats (KmsIRtpConnection * obj,
gboolean enable)
{
KmsWebRtcConnection *self = KMS_WEBRTC_CONNECTION (obj);
KmsWebRtcBaseConnection *base = KMS_WEBRTC_BASE_CONNECTION (obj);
KMS_WEBRTC_BASE_CONNECTION_LOCK (self);
/* Only rtp stream is marked with metadata for statistics */
if (enable) {
kms_webrtc_transport_enable_latency_notification (self->priv->rtp_tr,
base->cb, base->user_data, NULL);
} else {
kms_webrtc_transport_disable_latency_notification (self->priv->rtp_tr);
}
kms_webrtc_base_connection_collect_latency_stats (obj, enable);
KMS_WEBRTC_BASE_CONNECTION_UNLOCK (self);
}
static void
kms_webrtc_session_gathering_done (KmsIceBaseAgent * agent, gchar * stream_id,
KmsWebrtcSession * self)
{
KmsBaseRtpSession *base_rtp_sess = KMS_BASE_RTP_SESSION (self);
GHashTableIter iter;
gpointer key, v;
gboolean done = TRUE;
GST_DEBUG_OBJECT (self, "ICE gathering done for '%s' stream.", stream_id);
KMS_SDP_SESSION_LOCK (self);
g_hash_table_iter_init (&iter, base_rtp_sess->conns);
while (g_hash_table_iter_next (&iter, &key, &v)) {
KmsWebRtcBaseConnection *conn = KMS_WEBRTC_BASE_CONNECTION (v);
if (g_strcmp0 (stream_id, conn->stream_id) == 0) {
conn->ice_gathering_done = TRUE;
}
if (!conn->ice_gathering_done) {
done = FALSE;
}
}
if (done) {
kms_webrtc_session_local_sdp_add_default_info (self);
}
KMS_SDP_SESSION_UNLOCK (self);
if (done) {
g_signal_emit (G_OBJECT (self),
kms_webrtc_session_signals[SIGNAL_ON_ICE_GATHERING_DONE], 0);
}
}