Hi all I am experiencing a problem to which I have no answer from this list yet. Basically, I am using ICE, and the ICE procedures seem to run OK (I can see INVITE and reINVITE being exchanged successfully, and the ICE connectivity checks as well). I can also say that the IP/Ports negotiated in the initial offer / answer (relayed candidates) are different from the ones negotiatedin the subsequent offer / answer. I can even hear sound from caller to answerer and vice-versa. However, it seems to me that there is a problem in *answerer*: it seems like its stream negotiated in the initial offer / answer is not closed when the re-INVITE occours! Furthermore, it is not closed even when the call is terminated (BYE). Here we can see the problematic stream (strm181D08AC) creation, in Initial Offer / Answer, after 180 Ringing, but before 200 OK: 12:27:37.999 strm181D08AC VAD temporarily disabled 12:27:38.016 rtp.c pjmedia_rtp_session_init: ses=181D0F94, default_pt=4, ssrc=0x18be6784 12:27:38.031 rtp.c pjmedia_rtp_session_init: ses=181D166C, default_pt=4, ssrc=0x18be6784 12:27:38.048 stream.c Stream strm181D08AC created 12:27:38.064 strm181D08AC Encoder stream started 12:27:38.084 strm181D08AC Decoder stream started 12:27:38.353 pasound.c Opened device Microphone (Realtek High Defini(MME)/Speaker/HP (Realtek High Defini(MME) for recording and playback, sample rate=8000, ch=1, bits=16, 400 samples per frame, input latency=100 ms, output latency=100 ms 12:27:38.370 pasound.c Starting Microphone (Realtek High Defini stream.. 12:27:38.390 pasound.c PA message: Pa_StartStream: waveInStart returned = 0x0. 12:27:38.412 pasound.c Done, status=0 12:27:38.450 echo_speex.c Speex Echo canceller/AEC created, clock_rate=8000, samples per frame=400, tail length=800 ms, latency=200 ms 12:27:38.465 pasound.c Recorder thread started 12:27:38.487 conference.c Port 1 (strm181D08AC) transmitting to port 0 (Master/sound) 12:27:38.524 conference.c Port 0 (Master/sound) transmitting to port 1 (strm181D08AC) 12:27:38.540 Master/sound Underflow, buf_cnt=0, will generate 1 frame Below we can see the stream that works correctly (strm180768AC) being created, in Subsequent Offer / Answer, after reINVITE, but before 200 OK: 12:27:41.920 strm180768AC VAD temporarily disabled 12:27:41.972 rtp.c pjmedia_rtp_session_init: ses=18076F94, default_pt=4, ssrc=0x2cd672ae 12:27:42.005 stuntsx181A5D6 STUN client transaction created 12:27:42.024 rtp.c pjmedia_rtp_session_init: ses=1807766C, default_pt=4, ssrc=0x2cd672ae 12:27:42.064 stuntsx181A5D6 STUN sending message (transmit count=1) 12:27:42.087 stream.c Stream strm180768AC created 12:27:42.107 ICEVoiceTransp Check 4: [2] 172.18.0.51:55806-->172.18.0.72:1192: state changed from Frozen to In Progress 12:27:42.126 strm180768AC Encoder stream started 12:27:42.171 strm180768AC Decoder stream started 12:27:42.154 ICEVoiceTransp Performing delayed triggerred check for component 2 12:27:42.172 ICEVoiceTransp Triggered check for check 4 not performed because it's in progress. Retransmitting 12:27:42.221 stuntsx181A5D6 STUN sending message (transmit count=2) 12:27:42.463 pasound.c Opened device Microphone (Realtek High Defini(MME)/Speaker/HP (Realtek High Defini(MME) for recording and playback, sample rate=8000, ch=1, bits=16, 400 samples per frame, input latency=100 ms, output latency=100 ms 12:27:42.482 pasound.c Starting Microphone (Realtek High Defini stream.. 12:27:42.495 strm181D08AC RTP recv() error: Connection reset by peer (WSAECONNRESET) [err:130054] 12:27:42.538 pasound.c PA message: Pa_StartStream: waveInStart returned = 0x0. 12:27:42.574 Master/sound 200 samples reduced, buf_cnt=1865 12:27:42.598 Master/sound Buffer size adjusted from 2065 to 1865 (eff_cnt=1500) 12:27:42.617 pasound.c Done, status=0 12:27:42.627 pasound.c Recorder thread started 12:27:42.669 echo_speex.c Speex Echo canceller/AEC created, clock_rate=8000, samples per frame=400, tail length=800 ms, latency=200 ms 12:27:42.681 pasound.c Player thread started 12:27:42.704 conference.c Port 2 (strm180768AC) transmitting to port 0 (Master/sound) 12:27:42.752 conference.c Port 0 (Master/sound) transmitting to port 2 (strm180768AC) After the subsequent offer / answer exchange, all I can see about the problematic stream are a lot of connection-error related messages (which make some sense, as the other endpoint is no longer valid, as a new communication address/port has been negotiated): strm181D08AC RTP recv() error: Connection reset by peer (WSAECONNRESET) [err:130054] When the call ends, I can see that the stream that works correctly is closed: 12:28:53.726 tsx1803A85C Incoming Response msg 100/BYE/cseq=15724 (rdata0C44305C) in state Calling 12:28:53.762 aec14512E80 AEC Info: prefetching (first seq=485) 12:28:53.813 aec15DF3E80 AEC Info: prefetching (first seq=402) 12:28:53.876 Master/sound 662 samples reduced, buf_cnt=1635 12:28:53.877 conference.c Port 2 (strm180768AC) stop transmitting to port 0 (Master/sound) 12:28:53.936 Master/sound 320 samples reduced, buf_cnt=1715 12:28:53.979 conference.c Port 0 (Master/sound) stop transmitting to port 2 (strm180768AC) 12:28:54.012 Master/sound 216 samples reduced, buf_cnt=1899 12:28:54.181 pasound.c Stopping stream.. 12:28:54.219 pasound.c PA message: WinMME StopStream: waiting for background thread. 12:28:54.279 pasound.c PA message: WinMME StopStream: waiting for background thread. 12:28:54.307 pasound.c Done, status=0 12:28:54.279 pasound.c PA message: WinMME StopStream: waiting for background thread. 12:28:54.307 pasound.c Done, status=0 Can someone help me understand why this happens? Many thanks in advance Pedro Gon?alves
