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; }