static gboolean
kms_webrtc_session_local_sdp_add_default_info (KmsWebrtcSession * self)
{
KmsSdpSession *sdp_sess = KMS_SDP_SESSION (self);
SdpMessageContext *local_sdp_ctx = sdp_sess->local_sdp_ctx;
const GstSDPMessage *sdp =
kms_sdp_message_context_get_sdp_message (local_sdp_ctx);
const GSList *item = kms_sdp_message_context_get_medias (local_sdp_ctx);
gboolean use_ipv6;
GstSDPConnection *conn;
conn = (GstSDPConnection *) gst_sdp_message_get_connection (sdp);
gst_sdp_connection_clear (conn);
use_ipv6 = kms_sdp_session_get_use_ipv6 (sdp_sess);
for (; item != NULL; item = g_slist_next (item)) {
SdpMediaConfig *mconf = item->data;
if (kms_sdp_media_config_is_inactive (mconf)) {
gint mid = kms_sdp_media_config_get_id (mconf);
GST_DEBUG_OBJECT (self, "Media (id=%d) inactive", mid);
continue;
}
if (!kms_webrtc_session_sdp_media_add_default_info (self, mconf, use_ipv6)) {
return FALSE;
}
}
return TRUE;
}
static void
kms_rtp_endpoint_start_transport_send (KmsBaseSdpEndpoint *
base_sdp_endpoint, gboolean offerer)
{
KmsRtpEndpoint *self = KMS_RTP_ENDPOINT (base_sdp_endpoint);
SdpMessageContext *remote_ctx =
kms_base_sdp_endpoint_get_remote_sdp_ctx (base_sdp_endpoint);
const GstSDPMessage *sdp =
kms_sdp_message_context_get_sdp_message (remote_ctx);
const GSList *item = kms_sdp_message_context_get_medias (remote_ctx);
const GstSDPConnection *msg_conn = gst_sdp_message_get_connection (sdp);
/* Chain up */
KMS_BASE_SDP_ENDPOINT_CLASS (parent_class)->start_transport_send
(base_sdp_endpoint, offerer);
for (; item != NULL; item = g_slist_next (item)) {
SdpMediaConfig *mconf = item->data;
GstSDPMedia *media = kms_sdp_media_config_get_sdp_media (mconf);
const GstSDPConnection *media_con;
KmsRtpBaseConnection *conn;
guint port;
if (media->port == 0) {
continue;
}
if (gst_sdp_media_connections_len (media) != 0) {
media_con = gst_sdp_media_get_connection (media, 0);
} else {
media_con = msg_conn;
}
if (media_con == NULL || media_con->address == NULL
|| media_con->address[0] == '\0') {
const gchar *media_str = gst_sdp_media_get_media (media);
GST_WARNING_OBJECT (self, "Missing connection information for '%s'",
media_str);
continue;
}
conn = kms_rtp_endpoint_media_get_connection (self, mconf);
if (conn == NULL) {
continue;
}
port = gst_sdp_media_get_port (media);
kms_rtp_base_connection_set_remote_info (conn,
media_con->address, port, port + 1);
/* TODO: get rtcp port from attr if it exists */
}
}
void
kms_webrtc_session_start_transport_send (KmsWebrtcSession * self,
gboolean offerer)
{
KmsSdpSession *sdp_sess = KMS_SDP_SESSION (self);
const GstSDPMessage *sdp =
kms_sdp_message_context_get_sdp_message (sdp_sess->remote_sdp_ctx);
const GSList *item =
kms_sdp_message_context_get_medias (sdp_sess->neg_sdp_ctx);
GSList *remote_media_list =
kms_sdp_message_context_get_medias (sdp_sess->remote_sdp_ctx);
const gchar *ufrag, *pwd;
/* [rfc5245#section-5.2]
* The agent that generated the offer which
* started the ICE processing MUST take the controlling role, and the
* other MUST take the controlled role.
*/
// TODO: This code should be independent of the ice implementation
if (KMS_IS_ICE_NICE_AGENT (self->agent)) {
KmsIceNiceAgent *nice_agent = KMS_ICE_NICE_AGENT (self->agent);
g_object_set (kms_ice_nice_agent_get_agent (nice_agent), "controlling-mode",
offerer, NULL);
}
/* Configure specific webrtc connection such as SCTP if negotiated */
kms_webrtc_session_configure_connections (self, sdp_sess, offerer);
ufrag = gst_sdp_message_get_attribute_val (sdp, SDP_ICE_UFRAG_ATTR);
pwd = gst_sdp_message_get_attribute_val (sdp, SDP_ICE_PWD_ATTR);
for (; item != NULL; item = g_slist_next (item)) {
SdpMediaConfig *neg_mconf = item->data;
gint mid = kms_sdp_media_config_get_id (neg_mconf);
SdpMediaConfig *remote_mconf;
KmsWebRtcBaseConnection *conn;
if (kms_sdp_media_config_is_inactive (neg_mconf)) {
GST_DEBUG_OBJECT (self, "Media (id=%d) inactive", mid);
continue;
}
conn = kms_webrtc_session_get_connection (self, neg_mconf);
if (conn == NULL) {
continue;
}
remote_mconf = g_slist_nth_data (remote_media_list, mid);
if (remote_mconf == NULL) {
GST_WARNING_OBJECT (self, "Media (id=%d) is not in the remote SDP", mid);
continue;
}
gst_media_add_remote_candidates (remote_mconf, conn, ufrag, pwd);
}
kms_webrtc_session_add_stored_ice_candidates (self);
g_slist_foreach (self->remote_candidates,
kms_webrtc_session_remote_sdp_add_stored_ice_candidates, self);
}
