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 */
}
}
static void
kms_connection_ext_get_connection_attrs (KmsISdpMediaExtension * ext,
const GstSDPMedia * media, GArray * conns)
{
guint i, len;
len = gst_sdp_media_connections_len (media);
for (i = 0; i < len; i++) {
const GstSDPConnection *conn;
conn = gst_sdp_media_get_connection (media, i);
add_address_to_list (conns, conn);
}
}
/* Configure media SDP begin */
static gboolean
kms_rtp_endpoint_configure_media (KmsBaseSdpEndpoint * base_sdp_endpoint,
SdpMediaConfig * mconf)
{
KmsRtpEndpoint *self = KMS_RTP_ENDPOINT (base_sdp_endpoint);
KmsBaseRtpEndpoint *base_rtp = KMS_BASE_RTP_ENDPOINT (self);
GstSDPMedia *media = kms_sdp_media_config_get_sdp_media (mconf);
guint conn_len, c;
guint attr_len, a;
KmsRtpBaseConnection *conn;
gboolean ret = TRUE;
/* Chain up */
ret = KMS_BASE_SDP_ENDPOINT_CLASS
(kms_rtp_endpoint_parent_class)->configure_media (base_sdp_endpoint,
mconf);
if (ret == FALSE) {
return FALSE;
}
conn_len = gst_sdp_media_connections_len (media);
for (c = 0; c < conn_len; c++) {
gst_sdp_media_remove_connection (media, c);
}
conn =
KMS_RTP_BASE_CONNECTION (kms_base_rtp_endpoint_get_connection (base_rtp,
mconf));
if (conn == NULL) {
return TRUE;
}
media->port = kms_rtp_base_connection_get_rtp_port (conn);
attr_len = gst_sdp_media_attributes_len (media);
for (a = 0; a < attr_len; a++) {
const GstSDPAttribute *attr = gst_sdp_media_get_attribute (media, a);
if (g_strcmp0 (attr->key, "rtcp") == 0) {
gst_sdp_media_remove_attribute (media, a);
/* TODO: complete rtcp attr with addr and rtcp port */
}
}
return TRUE;
}
static gboolean
kms_webrtc_session_sdp_media_add_default_info (KmsWebrtcSession * self,
SdpMediaConfig * mconf, gboolean use_ipv6)
{
GstSDPMedia *media = kms_sdp_media_config_get_sdp_media (mconf);
KmsIceBaseAgent *agent = self->agent;
char *stream_id;
KmsIceCandidate *rtp_default_candidate, *rtcp_default_candidate;
gchar *rtp_addr;
gchar *rtcp_addr;
const gchar *rtp_addr_type, *rtcp_addr_type;
gboolean rtp_is_ipv6, rtcp_is_ipv6;
guint rtp_port, rtcp_port;
guint conn_len, c;
gchar *str;
guint attr_len, i;
stream_id = kms_webrtc_session_get_stream_id (self, mconf);
if (stream_id == NULL) {
return FALSE;
}
rtp_default_candidate =
kms_ice_base_agent_get_default_local_candidate (agent, stream_id,
NICE_COMPONENT_TYPE_RTP);
if (kms_sdp_media_config_is_rtcp_mux (mconf) ||
kms_sdp_media_config_get_group (mconf) != NULL) {
rtcp_default_candidate =
kms_ice_base_agent_get_default_local_candidate (agent, stream_id,
NICE_COMPONENT_TYPE_RTP);
} else {
rtcp_default_candidate =
kms_ice_base_agent_get_default_local_candidate (agent, stream_id,
NICE_COMPONENT_TYPE_RTCP);
}
if (rtcp_default_candidate == NULL || rtcp_default_candidate == NULL) {
GST_WARNING_OBJECT (self,
"Error getting ICE candidates. Network can be unavailable.");
return FALSE;
}
rtp_addr = kms_ice_candidate_get_address (rtp_default_candidate);
rtp_port = kms_ice_candidate_get_port (rtp_default_candidate);
rtp_is_ipv6 =
kms_ice_candidate_get_ip_version (rtp_default_candidate) == IP_VERSION_6;
rtcp_addr = kms_ice_candidate_get_address (rtcp_default_candidate);
rtcp_port = kms_ice_candidate_get_port (rtcp_default_candidate);
rtcp_is_ipv6 =
kms_ice_candidate_get_ip_version (rtcp_default_candidate) == IP_VERSION_6;
rtp_addr_type = rtp_is_ipv6 ? "IP6" : "IP4";
rtcp_addr_type = rtcp_is_ipv6 ? "IP6" : "IP4";
if (use_ipv6 != rtp_is_ipv6) {
GST_WARNING_OBJECT (self, "No valid rtp address type: %s", rtp_addr_type);
return FALSE;
}
media->port = rtp_port;
conn_len = gst_sdp_media_connections_len (media);
for (c = 0; c < conn_len; c++) {
gst_sdp_media_remove_connection (media, c);
}
gst_sdp_media_add_connection (media, "IN", rtp_addr_type, rtp_addr, 0, 0);
attr_len = gst_sdp_media_attributes_len (media);
for (i = 0; i < attr_len; i++) {
const GstSDPAttribute *attr = gst_sdp_media_get_attribute (media, i);
if (g_strcmp0 (attr->key, "rtcp") == 0) {
str =
g_strdup_printf ("%d IN %s %s", rtcp_port, rtcp_addr_type, rtcp_addr);
gst_sdp_attribute_clear ((GstSDPAttribute *) attr);
gst_sdp_attribute_set ((GstSDPAttribute *) attr, "rtcp", str);
g_free (str);
}
}
g_free (rtp_addr);
g_free (rtcp_addr);
g_object_unref (rtp_default_candidate);
g_object_unref (rtcp_default_candidate);
return TRUE;
}
