<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML xmlns:v = "urn:schemas-microsoft-com:vml" xmlns:o = "urn:schemas-microsoft-com:office:office" xmlns:w = "urn:schemas-microsoft-com:office:word" xmlns:m = "http://schemas.microsoft.com/office/2004/12/omml"><HEAD> <META content=text/html;charset=iso-8859-1 http-equiv=Content-Type> <META name=GENERATOR content="MSHTML 11.00.9600.18057"> <STYLE></STYLE> </HEAD> <BODY lang=EN-US id=MailContainerBody style="PADDING-TOP: 15px; PADDING-LEFT: 10px; PADDING-RIGHT: 10px" leftMargin=0 link=#0563c1 topMargin=0 vLink=#954f72 CanvasTabStop="true" name="Compose message area"> <DIV>Hello,<o:p></o:p></DIV> <DIV class=WordSection1> <o:p> </o:p> I am wondering why during the negotiation, component status can change from “ready” to not “ready”? See the log below, RTP becomes “ready” first but becomes “connecting” during the RTCP negotiation. <o:p></o:p> <o:p> </o:p> 108191.041128691|INFOR|1095730272|cb_component_state_changed|347|agent_state 2 4 (RTP state is 2 – “connecting”, RTCP is 4 -- “ready”)<o:p></o:p> <o:p> </o:p> Any idea why?<o:p></o:p> <o:p> </o:p> Tom<o:p></o:p> <o:p> </o:p> 108191.025514051|INFOR|1074003968|wait_for_negotiation_done|408|waiting for state READY or FAILED signal...<o:p></o:p> 108191.025772171|INFOR|1104594016|StartSub|270|remote candidate-gathering-done signal received...<o:p></o:p> 108191.033667811|INFOR|1095730272|cb_component_state_changed|326|SIGNAL: state changed stream 1 RTP connected[3]<o:p></o:p> 108191.033801851|INFOR|1095730272|cb_component_state_changed|326|SIGNAL: state changed stream 1 RTP ready[4]<o:p></o:p> 108191.033895891|INFOR|1095730272|cb_component_state_changed|344|<o:p></o:p> <o:p> </o:p> RTP negotiation complete: local: [10.113.54.61]:54070, remote: [10.113.54.82]:14287<o:p></o:p> 108191.033936531|INFOR|1095730272|cb_component_state_changed|347|agent_state 4 1<o:p></o:p> 108191.035725771|INFOR|1104594016|cb_component_state_changed|326|SIGNAL: state changed stream 1 RTP connecting[2]<o:p></o:p> 108191.037519371|INFOR|1104594016|cb_component_state_changed|326|SIGNAL: state changed stream 1 RTCP connecting[2]<o:p></o:p> 108191.037634931|DEBUG|1104594016|StartSub|274|<o:p></o:p> <o:p> </o:p> remote candidate parsed successfully...<o:p></o:p> 108191.037671491|INFOR|1104594016|wait_for_negotiation_done|408|waiting for state READY or FAILED signal...<o:p></o:p> 108191.040931491|INFOR|1095730272|cb_component_state_changed|326|SIGNAL: state changed stream 1 RTCP connected[3]<o:p></o:p> 108191.041038411|INFOR|1095730272|cb_component_state_changed|326|SIGNAL: state changed stream 1 RTCP ready[4]<o:p></o:p> 108191.041092331|INFOR|1095730272|cb_component_state_changed|344|<o:p></o:p> <o:p> </o:p> RTCP negotiation complete: local: [10.113.54.61]:50792, remote: [10.113.54.82]:14287<o:p></o:p> 108191.041128691|INFOR|1095730272|cb_component_state_changed|347|agent_state 2 4<o:p></o:p> <o:p> </o:p> void cb_component_state_changed(NiceAgent *agent, guint _stream_id,<o:p></o:p> guint component_id, guint state,<o:p></o:p> gpointer data)<o:p></o:p> {<o:p></o:p> <o:p> </o:p> LOG(TRACE_LEVEL_INFO, "SIGNAL: state changed stream %d %s %s[%d]\n",<o:p></o:p> _stream_id, (component_id == NICE_COMPONENT_TYPE_RTP)?"RTP":"RTCP",<o:p></o:p> state_name[state], state);<o:p></o:p> <o:p> </o:p> agent_state[component_id - 1] = state;<o:p></o:p> if (state == NICE_COMPONENT_STATE_READY) {<o:p></o:p> NiceCandidate *local, *remote;<o:p></o:p> <o:p> </o:p> // Get current selected candidate pair and print IP address used<o:p></o:p> if (nice_agent_get_selected_pair (agent, _stream_id, component_id,<o:p></o:p> &local, &remote)) {<o:p></o:p> gchar local_ipaddr[INET6_ADDRSTRLEN];<o:p></o:p> gchar remote_ipaddr[INET6_ADDRSTRLEN];<o:p></o:p> <o:p> </o:p> nice_address_to_string(&local->addr, local_ipaddr);<o:p></o:p> nice_address_to_string(&remote->addr, remote_ipaddr);<o:p></o:p> <o:p> </o:p> LOG(TRACE_LEVEL_INFO, "\n\n%s negotiation complete: local: [%s]:%d, remote: [%s]:%d\n",<o:p></o:p> (component_id == NICE_COMPONENT_TYPE_RTP)?"RTP":"RTCP",<o:p></o:p> local_ipaddr, nice_address_get_port(&local->addr),<o:p></o:p> remote_ipaddr, nice_address_get_port(&remote->addr));<o:p></o:p> }<o:p></o:p> <o:p> </o:p> LOG(TRACE_LEVEL_INFO, "agent_state %d %d\n",agent_state[0], agent_state[1]);<o:p></o:p> <o:p> </o:p> //If both RTP & RTCP components are ready<o:p></o:p> if ((agent_state[0] == NICE_COMPONENT_STATE_READY) &&<o:p></o:p> (agent_state[1]==NICE_COMPONENT_STATE_READY)) {<o:p></o:p> . . . . . <o:p></o:p> LOG(TRACE_LEVEL_INFO, "\n\n negotiation done \n");<o:p></o:p> }<o:p></o:p> } else if (state == NICE_COMPONENT_STATE_FAILED) {<o:p></o:p> LOG(TRACE_LEVEL_WARNING, "%s connection failed, stop sub thread\n", __func__);<o:p></o:p> }<o:p></o:p> } <o:p></o:p></DIV> <HR> Statement Of Confidentiality: This electronic message transmission, and all attachments, contains information from Extron Electronics which is confidential and privileged. 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