Is there a way to find out, why no srflx addresses are offered?

Neil Young foreverneilyoung at googlemail.com
Thu Aug 19 07:45:08 UTC 2021


I'm having a client, having a device in an unknown network. The device is offering and the GST pipeline contains a acknowledged STUN configuration.


PIPELINE_TEST_H264 = '''
webrtcbin name=webrtcbin bundle-policy=max-bundle stun-server=stun://stun.l.google.com:19302
videotestsrc is-live=true pattern=smpte ! video/x-raw,width=640,height=480 ! videoconvert ! x264enc  ! rtph264pay config-interval=1 !
application/x-rtp,media=video,encoding-name=H264 ! webrtcbin.

I see that this config arrives in webrtcbin, since it is traced in the first line.

However, the sent ICE candidates from this device don't contain any srflx candidate, there is just one, and this is coming from the remote side.

GST is 18.4, all required modules are there

gst-inspect-1.0 | grep -E "nice|webrtc|dtls|rpicamsrc"
webrtc:  webrtcbin: WebRTC Bin
rpicamsrc:  rpicamsrc: Raspberry Pi Camera Source
rpicamsrc:  rpicamsrcdeviceprovider (GstDeviceProviderFactory)
dtls:  dtlsenc: DTLS Encoder
dtls:  dtlsdec: DTLS Decoder
dtls:  dtlssrtpdec: DTLS-SRTP Decoder
dtls:  dtlssrtpenc: DTLS-SRTP Encoder
dtls:  dtlssrtpdemux: DTLS SRTP Demultiplexer
nice:  nicesrc: ICE source
nice:  nicesink: ICE sink

I have a little node script aside, which proves, that STUN is available generally.

const stun = require('stun')

stun.request('stun.l.google.com:19302', (err, res) => {
    if (err) {
        console.error(err)
    } else {
        const { address } = res.getXorAddress()
        console.log('Your IP is:', address)
    }
})

That gives a proper result.

Is there any way to determine, why STUN fails? I have never appeared such a problem in conjunction with webrtcbin, but the client is in Columbia and who know, how the bits are ticking there :)

Full trace of the remote device originated connection. I'm just getting "host" candidates on my end.


0:00:05.334575091  5663 0x7280b4e0 DEBUG              webrtcice gstwebrtcice.c:958:gst_webrtc_ice_set_stun_server:<webrtcbin0:ice> setting stun server, stun://stun.l.google.com:19302
0:00:05.372005323  5663 0x7280b4e0 DEBUG              webrtcbin gstwebrtcbin.c:319:gst_webrtc_bin_pad_new:<'':sink_0> new visible pad with direction sink
0:00:05.372127718  5663 0x7280b4e0 TRACE              webrtcbin gstwebrtcbin.c:469:_find_transceiver_for_mline:<webrtcbin> Found transceiver (NULL) for mlineindex 0
0:00:05.372611883  5663 0x7280b4e0 LOG                webrtcbin gstwebrtcbin.c:5823:gst_webrtc_bin_request_new_pad:<webrtcbin> Created new transceiver <webrtctransceiver0> for mline 0
0:00:05.383187992  5663 0x7280b4e0 DEBUG              webrtcbin gstwebrtcbin.c:5737:gst_webrtc_bin_change_state: changing state: NULL => READY
0:00:05.383863458  5663 0x7280b4e0 LOG                webrtcbin gstwebrtcbin.c:1354:_check_if_negotiation_is_needed:<webrtcbin> checking if negotiation is needed
0:00:05.383945385  5663 0x7280b4e0 LOG                webrtcbin gstwebrtcbin.c:1360:_check_if_negotiation_is_needed:<webrtcbin> no negotiation possible until caps have been received on all sink pads
0:00:05.384430331  5663 0x7280b4e0 DEBUG              webrtcbin gstwebrtcbin.c:5737:gst_webrtc_bin_change_state: changing state: READY => PAUSED
0:00:05.385666733  5663 0x7284fb20 FIXME                default gstutils.c:4026:gst_pad_create_stream_id_internal:<videotestsrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
0:00:05.385811368  5663 0x7280b4e0 DEBUG              webrtcbin gstwebrtcbin.c:5737:gst_webrtc_bin_change_state: changing state: PAUSED => PLAYING
0:00:12.867780258  5663 0x7284fb20 DEBUG              webrtcbin gstwebrtcbin.c:279:gst_webrtcbin_sink_event:<webrtcbin> On <webrtcbin:sink_0> checking negotiation? 1, caps application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)42c01f, sprop-parameter-sets=(string)"Z0LAH9kAUAW7AWoCAgKAAAADAIAAAB5HjBkk\,aMuMsg\=\=", payload=(int)96, ssrc=(uint)4147642139, timestamp-offset=(uint)1661443755, seqnum-offset=(uint)29522, a-framerate=(string)30
0:00:12.867945727  5663 0x7284fb20 LOG                webrtcbin gstwebrtcbin.c:1354:_check_if_negotiation_is_needed:<webrtcbin> checking if negotiation is needed
0:00:12.868020205  5663 0x7284fb20 LOG                webrtcbin gstwebrtcbin.c:1370:_check_if_negotiation_is_needed:<webrtcbin> no local description set
0:00:12.868241090  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1512:_check_need_negotiation_task:<webrtcbin> emitting on-negotiation-needed
0:00:12.869272180  5663 0x7284fb20 LOG                webrtcbin gstwebrtcbin.c:5784:sink_pad_block:<webrtcbin:sink_0> blocking pad with data buffer: 0x61e53000, pts 1000:00:00.000000000, dts 1000:00:00.000000000, dur 99:99:99.999999999, size 14, offset none, offset_end none, flags 0x4040
0:00:12.870247906  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:3323:_create_sdp_task:<webrtcbin> creating offer sdp with options (NULL)
0:00:12.870487697  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:2718:_create_offer_task:<webrtcbin> adding transceiver <webrtctransceiver0> at media index 0
0:00:12.870583946  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:2320:sdp_media_from_transceiver:<webrtctransceiver0> 0 Generating new ice parameters mline 0, mid (null)
0:00:12.870698060  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:1558:_find_codec_preferences:<webrtcbin> retrieving codec preferences from <webrtctransceiver0>
0:00:12.870996497  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:2380:sdp_media_from_transceiver:<webrtcbin> Adding 0-th caps application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)42c01f, sprop-parameter-sets=(string)"Z0LAH9kAUAW7AWoCAgKAAAADAIAAAB5HjBkk\,aMuMsg\=\=", payload=(int)96, ssrc=(uint)4147642139, timestamp-offset=(uint)1661443755, seqnum-offset=(uint)29522, a-framerate=(string)30, rtcp-fb-nack-pli=(boolean)true to 0-th media
0:00:12.871335246  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport (NULL) for session 0
0:00:18.296653158  5663 0x7284faf0 WARN               dtlsagent gstdtlsagent.c:170:ssl_warn_cb:<GstDtlsAgent at 0x71001f38> ssl error: 1905910880:error:14187180:SSL routines:ssl_do_config:bad value:../ssl/ssl_mcnf.c:74:section=system_default, cmd=MinProtocol, arg=TLSv1.2

0:00:18.303163499  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:400:_find_ice_stream_for_session:<webrtcbin> No ice stream available for session 0
0:00:18.303362717  5663 0x7284faf0 DEBUG              webrtcice gstwebrtcice.c:424:_add_stun_server:<webrtcbin0:ice> adding stun server, stun://stun.l.google.com:19302
0:00:18.303759903  5663 0x7284faf0 DEBUG              webrtcice gstwebrtcice.c:313:_resolve_host:<webrtcbin0:ice> Resolving host stun.l.google.com
0:00:18.321751348  5663 0x7284faf0 DEBUG              webrtcice gstwebrtcice.c:322:_resolve_host:<webrtcbin0:ice> Resolved 2 addresses for host stun.l.google.com
0:00:18.322756709  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:411:_add_ice_stream_item:<webrtcbin> adding ice stream <webrtcicestream0> for session 0
0:00:18.339263525  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1713:_create_transport_channel:<webrtcbin> Create transport <transportstream0> for session 0
0:00:18.345334180  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:5201:on_rtpbin_pad_added:<webrtcbin> new rtpbin pad recv_rtcp_sink_0
0:00:18.346101573  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:5201:on_rtpbin_pad_added:<webrtcbin> new rtpbin pad send_rtcp_src_0
0:00:18.346763654  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:195:transport_send_bin_change_state:<transportsendbin0> changing state: NULL => READY
0:00:18.347145996  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:195:transport_send_bin_change_state:<transportsendbin0> changing state: READY => PAUSED
0:00:18.347638494  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:195:transport_send_bin_change_state:<transportsendbin0> changing state: PAUSED => PLAYING
0:00:18.347957972  5663 0x7284faf0 DEBUG   webrtctransportreceivebin transportreceivebin.c:236:transport_receive_bin_change_state: changing state: NULL => READY
0:00:18.348909688  5663 0x7284e060 FIXME                default gstutils.c:4026:gst_pad_create_stream_id_internal:<nicesrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
0:00:18.349194739  5663 0x7284e060 WARN                GST_PADS gstpad.c:4303:gst_pad_peer_query:<nicesrc0:src> could not send sticky events
0:00:18.349489060  5663 0x7284fc30 FIXME                default gstutils.c:4026:gst_pad_create_stream_id_internal:<nicesrc1:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
0:00:18.349688331  5663 0x7284fc30 WARN                GST_PADS gstpad.c:4303:gst_pad_peer_query:<nicesrc1:src> could not send sticky events
0:00:18.350444734  5663 0x7284faf0 DEBUG   webrtctransportreceivebin transportreceivebin.c:236:transport_receive_bin_change_state: changing state: READY => PAUSED
0:00:18.352655664  5663 0x7284faf0 DEBUG   webrtctransportreceivebin transportreceivebin.c:236:transport_receive_bin_change_state: changing state: PAUSED => PLAYING
0:00:18.367553370  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:4325:_set_description_task:<webrtcbin> Attempting to set local offer in the stable state
0:00:18.368168576  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4326:_set_description_task:<webrtcbin> SDP contents
v=0
o=- 1751044319098961977 0 IN IP4 0.0.0.0
s=-
t=0 0
a=ice-options:trickle
a=group:BUNDLE video0
m=video 9 UDP/TLS/RTP/SAVPF 96
c=IN IP4 0.0.0.0
a=setup:actpass
a=ice-ufrag:lgpMvJDWTzpL56bABmidMBO5nXDZiTvG
a=ice-pwd:dyxCTUJSxyWOVw++aYbVZ8DR6fjruACb
a=rtcp-mux
a=rtcp-rsize
a=sendonly
a=rtpmap:96 H264/90000
a=rtcp-fb:96 nack pli
a=framerate:30
a=fmtp:96 packetization-mode=1;profile-level-id=42c01f;sprop-parameter-sets=Z0LAH9kAUAW7AWoCAgKAAAADAIAAAB5HjBkk,aMuMsg==
a=ssrc:4147642139 msid:user2873340345 at host-5a03acd8 webrtctransceiver0
a=ssrc:4147642139 cname:user2873340345 at host-5a03acd8
a=mid:video0
a=fingerprint:sha-256 07:C6:2C:1B:68:BA:B9:A8:CE:7C:57:28:95:23:08:81:18:DE:7E:C3:18:CE:C4:CC:DA:E3:1E:BB:41:40:79:20

0:00:18.375844486  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:4492:_set_description_task:<webrtcbin> we are in ice controlling mode: true
0:00:18.376316255  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport <transportstream0> for session 0
0:00:18.376750785  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:195:transport_send_bin_change_state:<transportsendbin0> changing state: PLAYING => PLAYING
0:00:18.377346616  5663 0x7284faf0 DEBUG   webrtctransportreceivebin transportreceivebin.c:236:transport_receive_bin_change_state: changing state: PLAYING => PLAYING
0:00:18.378242550  5663 0x7284faf0 DEBUG              webrtcice gstwebrtcice.c:805:gst_webrtc_ice_set_local_credentials:<webrtcbin0:ice> Setting local ICE credentials on ICE stream 1 ufrag:lgpMvJDWTzpL56bABmidMBO5nXDZiTvG pwd:dyxCTUJSxyWOVw++aYbVZ8DR6fjruACb
0:00:18.378687236  5663 0x7284faf0 DEBUG              webrtcice gstwebrtcice.c:823:gst_webrtc_ice_gather_candidates:<webrtcbin0:ice> gather candidates for stream 1
0:00:18.379089891  5663 0x7284faf0 DEBUG        webrtcicestream icestream.c:177:gst_webrtc_ice_stream_gather_candidates:<webrtcicestream0> start gathering candidates
0:00:18.407668381  5663 0x7284faf0 DEBUG    webrtcnicetransport nicetransport.c:186:_on_component_state_changed:<webrtcnicetransport0> 1 1 gathering
0:00:18.408450462  5663 0x7284faf0 DEBUG    webrtcnicetransport nicetransport.c:186:_on_component_state_changed:<webrtcnicetransport1> 1 2 gathering
0:00:18.409005095  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4895:_on_local_ice_candidate_cb:<webrtcbin> Queueing on_ice_candidate_task
0:00:18.410731808  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4653:_set_description_task:<webrtcbin> notify signaling-state from have-local-offer to have-local-offer
0:00:18.412501228  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:972:_collate_ice_gathering_states:<webrtcbin> transceiver 0x72811158 has no mid
0:00:18.413104559  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:988:_collate_ice_gathering_states:<webrtcbin> transceiver 0x72811158 gathering state: 0x1
0:00:18.413539922  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1003:_collate_ice_gathering_states:<webrtcbin> transceiver 0x72811158 RTCP gathering state: 0x1
0:00:18.413958879  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1010:_collate_ice_gathering_states:<webrtcbin> ICE gathering state: 0x2
0:00:18.414357524  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1014:_collate_ice_gathering_states:<webrtcbin> returning gathering
0:00:18.414779814  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:1225:_update_ice_gathering_state_task:<webrtcbin> ICE gathering state change from new(0) to gathering(1)
0:00:18.416218819  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:972:_collate_ice_gathering_states:<webrtcbin> transceiver 0x72811158 has no mid
0:00:18.416750900  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:988:_collate_ice_gathering_states:<webrtcbin> transceiver 0x72811158 gathering state: 0x1
0:00:18.417187149  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1003:_collate_ice_gathering_states:<webrtcbin> transceiver 0x72811158 RTCP gathering state: 0x1
0:00:18.417600897  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1010:_collate_ice_gathering_states:<webrtcbin> ICE gathering state: 0x2
0:00:18.418002146  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1014:_collate_ice_gathering_states:<webrtcbin> returning gathering
0:00:18.418706831  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:860:_collate_ice_connection_states:<webrtcbin> transceiver 0x72811158 has no mid
0:00:18.419116621  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:901:_collate_ice_connection_states:<webrtcbin> ICE connection state: 0x0
0:00:18.419511515  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:920:_collate_ice_connection_states:<webrtcbin> returning new
0:00:18.419924795  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1063:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 has no mid
0:00:18.420342242  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtcbin> ICE connection state: 0x0. DTLS connection state: 0x0
0:00:18.420742448  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1160:_collate_peer_connection_states:<webrtcbin> returning new
0:00:18.421163749  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:860:_collate_ice_connection_states:<webrtcbin> transceiver 0x72811158 has no mid
0:00:18.421568643  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:901:_collate_ice_connection_states:<webrtcbin> ICE connection state: 0x0
0:00:18.421962652  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:920:_collate_ice_connection_states:<webrtcbin> returning new
0:00:18.422377338  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1063:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 has no mid
0:00:18.422789160  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtcbin> ICE connection state: 0x0. DTLS connection state: 0x0
0:00:18.423188846  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1160:_collate_peer_connection_states:<webrtcbin> returning new
0:00:18.423618428  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:1 1 UDP 2015363327 2800:e2:1080:2fa:ba27:ebff:fe8f:fc1a 54933 typ host
0:00:18.424960662  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:2 1 TCP 1015021823 2800:e2:1080:2fa:ba27:ebff:fe8f:fc1a 9 typ host tcptype active
0:00:18.426890187  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:3 1 TCP 1010827519 2800:e2:1080:2fa:ba27:ebff:fe8f:fc1a 34241 typ host tcptype passive
0:00:18.429996425  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:4 1 UDP 2015363583 ::ba27:ebff:fe8f:fc1a 60965 typ host
0:00:18.433049956  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:5 1 TCP 1015022079 ::ba27:ebff:fe8f:fc1a 9 typ host tcptype active
0:00:18.435892810  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:6 1 TCP 1010827775 ::ba27:ebff:fe8f:fc1a 41263 typ host tcptype passive
0:00:18.438857539  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:7 1 UDP 2015363839 2800:e2:1080:a2c:ba27:ebff:fe8f:fc1a 33005 typ host
0:00:18.441822060  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:8 1 TCP 1015022335 2800:e2:1080:a2c:ba27:ebff:fe8f:fc1a 9 typ host tcptype active
0:00:18.442967524  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:9 1 TCP 1010828031 2800:e2:1080:a2c:ba27:ebff:fe8f:fc1a 60533 typ host tcptype passive
0:00:18.447046937  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:10 1 UDP 2015364095 192.168.1.14 46788 typ host
0:00:18.448241307  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:11 1 TCP 1015022591 192.168.1.14 9 typ host tcptype active
0:00:18.451048068  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:12 1 TCP 1010828287 192.168.1.14 40773 typ host tcptype passive
0:00:18.452713270  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:13 1 UDP 2015364351 fe80::ba27:ebff:fe8f:fc1a 43834 typ host
0:00:18.454581961  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:14 1 TCP 1015022847 fe80::ba27:ebff:fe8f:fc1a 9 typ host tcptype active
0:00:18.456299716  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:15 1 TCP 1010828543 fe80::ba27:ebff:fe8f:fc1a 57723 typ host tcptype passive
0:00:18.458156844  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:1 2 UDP 2015363326 2800:e2:1080:2fa:ba27:ebff:fe8f:fc1a 50462 typ host
0:00:18.459926421  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:2 2 TCP 1015021822 2800:e2:1080:2fa:ba27:ebff:fe8f:fc1a 9 typ host tcptype active
0:00:18.461819591  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:3 2 TCP 1010827518 2800:e2:1080:2fa:ba27:ebff:fe8f:fc1a 50983 typ host tcptype passive
0:00:18.463508179  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:4 2 UDP 2015363582 ::ba27:ebff:fe8f:fc1a 32906 typ host
0:00:18.465431870  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:5 2 TCP 1015022078 ::ba27:ebff:fe8f:fc1a 9 typ host tcptype active
0:00:18.467175718  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:6 2 TCP 1010827774 ::ba27:ebff:fe8f:fc1a 38057 typ host tcptype passive
0:00:18.470886434  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:7 2 UDP 2015363838 2800:e2:1080:a2c:ba27:ebff:fe8f:fc1a 59392 typ host
0:00:18.472802833  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:8 2 TCP 1015022334 2800:e2:1080:a2c:ba27:ebff:fe8f:fc1a 9 typ host tcptype active
0:00:18.474614910  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:9 2 TCP 1010828030 2800:e2:1080:a2c:ba27:ebff:fe8f:fc1a 37865 typ host tcptype passive
0:00:18.476429955  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:10 2 UDP 2015364094 192.168.1.14 40542 typ host
0:00:18.478287396  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:11 2 TCP 1015022590 192.168.1.14 9 typ host tcptype active
0:00:18.479969526  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:12 2 TCP 1010828286 192.168.1.14 53999 typ host tcptype passive
0:00:18.481717280  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:13 2 UDP 2015364350 fe80::ba27:ebff:fe8f:fc1a 56524 typ host
0:00:18.483469565  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:14 2 TCP 1015022846 fe80::ba27:ebff:fe8f:fc1a 9 typ host tcptype active
0:00:18.485211434  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4850:_on_local_ice_candidate_task:<webrtcbin> produced ICE candidate for mline:0 and candidate:15 2 TCP 1010828542 fe80::ba27:ebff:fe8f:fc1a 34145 typ host tcptype passive
0:00:18.637225467  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:4325:_set_description_task:<webrtcbin> Attempting to set remote answer in the have-local-offer state
0:00:18.637355883  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4326:_set_description_task:<webrtcbin> SDP contents
v=0
o=- 6289662042184971750 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE video0
a=msid-semantic: WMS
m=video 9 UDP/TLS/RTP/SAVPF 96
c=IN IP4 0.0.0.0
a=rtcp:9 IN IP4 0.0.0.0
a=ice-ufrag:LfLa
a=ice-pwd:zOblXJQQhPGK/gtRzOUgL/K4
a=ice-options:trickle
a=fingerprint:sha-256 2B:CF:9E:92:0F:88:22:15:6F:0B:7B:95:AC:FD:DA:2F:AF:73:B7:B8:3D:06:ED:35:CF:58:C8:4B:F2:8C:E5:FB
a=setup:active
a=mid:video0
a=recvonly
a=rtcp-mux
a=rtcp-rsize
a=rtpmap:96 H264/90000
a=rtcp-fb:96 nack pli
a=fmtp:96 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f

0:00:18.637778538  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:4492:_set_description_task:<webrtcbin> we are in ice controlling mode: true
0:00:18.637917704  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport <transportstream0> for session 0
0:00:18.638018902  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:195:transport_send_bin_change_state:<transportsendbin0> changing state: PLAYING => PLAYING
0:00:18.638422546  5663 0x7284faf0 DEBUG   webrtctransportreceivebin transportreceivebin.c:236:transport_receive_bin_change_state: changing state: PLAYING => PLAYING
0:00:18.638985461  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:3731:_update_transport_ptmap_from_media:<webrtcbin> mapping sdp session level attributes to caps
0:00:18.639106085  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:3733:_update_transport_ptmap_from_media:<webrtcbin> mapping sdp media level attributes to caps
0:00:18.639305147  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:3746:_update_transport_ptmap_from_media:<webrtcbin>  looking at 0 pt: 96
0:00:18.639666708  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport <transportstream0> for session 0
0:00:18.641569358  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport <transportstream0> for session 0
0:00:18.641740399  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport <transportstream0> for session 0
0:00:18.641847273  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:5312:on_rtpbin_request_aux_sender:<webrtcbin> requesting aux sender for stream <transportstream0> with transport <webrtctransceiver0> and pt map (NULL)
0:00:18.642579354  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:5201:on_rtpbin_pad_added:<webrtcbin> new rtpbin pad send_rtp_src_0
0:00:18.642862009  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:5201:on_rtpbin_pad_added:<webrtcbin> new rtpbin pad send_rtp_sink_0
0:00:18.643702735  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:3451:_find_transceiver_for_sdp_media:<webrtcbin> Found transceiver <webrtctransceiver0>
0:00:18.643833412  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport <transportstream0> for session 0
0:00:18.643933464  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:195:transport_send_bin_change_state:<transportsendbin0> changing state: PLAYING => PLAYING
0:00:18.644180442  5663 0x7284faf0 DEBUG   webrtctransportreceivebin transportreceivebin.c:236:transport_receive_bin_change_state: changing state: PLAYING => PLAYING
0:00:18.644978772  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:3876:_update_transceiver_from_sdp_media:<webrtcbin> marking stream 0x71007048 as active
0:00:18.645114241  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:3892:_update_transceiver_from_sdp_media:<webrtcbin> transceiver <webrtctransceiver0> direction change from none to sendonly
0:00:18.645218199  5663 0x7284faf0 DEBUG              webrtcbin gstwebrtcbin.c:3925:_update_transceiver_from_sdp_media:<webrtcbin> found existing send pad <webrtcbin:sink_0> for transceiver <webrtctransceiver0>
0:00:18.645409031  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:329:_on_notify_dtls_client_status:<transportsendbin0> DTLS-SRTP encoder configured. Unlocking it and changing state <dtlssrtpenc0>
0:00:18.647540117  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:329:_on_notify_dtls_client_status:<transportsendbin0> DTLS-SRTP encoder configured. Unlocking it and changing state <dtlssrtpenc1>
0:00:18.649367454  5663 0x7284faf0 DEBUG   webrtctransportreceivebin transportreceivebin.c:126:transport_receive_bin_set_receive_state:<transportreceivebin0> changing receive state to pass
0:00:18.649735578  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:4547:_set_description_task:<webrtcbin:sink_0> Connecting input stream to rtpbin with transceiver <webrtctransceiver0> and caps application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)42c01f, sprop-parameter-sets=(string)"Z0LAH9kAUAW7AWoCAgKAAAADAIAAAB5HjBkk\,aMuMsg\=\=", payload=(int)96, ssrc=(uint)4147642139, timestamp-offset=(uint)1661443755, seqnum-offset=(uint)29522, a-framerate=(string)30
0:00:18.649845161  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:3495:_connect_input_stream:<webrtcbin:sink_0> linking input stream 0
0:00:18.650311357  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:195:transport_send_bin_change_state:<transportsendbin0> changing state: PLAYING => PLAYING
0:00:18.650819428  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport <transportstream0> for session 0
0:00:18.650918074  5663 0x7284faf0 DEBUG   webrtctransportsendbin transportsendbin.c:195:transport_send_bin_change_state:<transportsendbin0> changing state: PLAYING => PLAYING
0:00:18.651333229  5663 0x7284faf0 DEBUG   webrtctransportreceivebin transportreceivebin.c:236:transport_receive_bin_change_state: changing state: PLAYING => PLAYING
0:00:18.651890674  5663 0x7284faf0 DEBUG              webrtcice gstwebrtcice.c:746:gst_webrtc_ice_set_remote_credentials:<webrtcbin0:ice> Setting remote ICE credentials on ICE stream 1 ufrag:LfLa pwd:zOblXJQQhPGK/gtRzOUgL/K4
0:00:18.652096455  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:4653:_set_description_task:<webrtcbin> notify signaling-state from stable to stable
0:00:18.654179937  5663 0x7108e400 INFO               webrtcbin gstwebrtcbin.c:5632:on_rtpbin_new_sender_ssrc:<webrtcbin> session 0 ssrc 4147642139 new sender ssrc
0:00:18.655031028  5663 0x7108e400 LOG     webrtctransportsendbin transportsendbin.c:160:pad_block:<rtp_sink:proxypad11> blocking pad with data buffer: 0x61e53000, pts 1000:00:00.000000000, dts 1000:00:00.000000000, dur 99:99:99.999999999, size 14, offset none, offset_end none, flags 0x4040
0:00:18.655258423  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:1354:_check_if_negotiation_is_needed:<webrtcbin> checking if negotiation is needed
0:00:18.655720452  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:1504:_check_if_negotiation_is_needed:<webrtcbin> no negotiation needed
0:00:18.655943993  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 DTLS state: 0x0
0:00:18.656039878  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 ICE state: 0x0
0:00:18.656122638  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtcbin> ICE connection state: 0x1. DTLS connection state: 0x1
0:00:18.656185867  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1160:_collate_peer_connection_states:<webrtcbin> returning new
0:00:18.656284356  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 DTLS state: 0x0
0:00:18.656363887  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 ICE state: 0x0
0:00:18.656443158  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtcbin> ICE connection state: 0x1. DTLS connection state: 0x1
0:00:18.656504824  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1160:_collate_peer_connection_states:<webrtcbin> returning new
0:00:18.656933365  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:394:_find_ice_stream_for_session:<webrtcbin> Found ice stream id <webrtcicestream0> for session 0
0:00:18.657023104  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:3614:_add_ice_candidate:<webrtcbin> adding ICE candidate with mline:0, a=candidate:2612432513 1 udp 2122260223 192.168.188.24 62293 typ host generation 0 ufrag LfLa network-id 1 network-cost 10
0:00:18.658096746  5663 0x7284faf0 DEBUG    webrtcnicetransport nicetransport.c:186:_on_component_state_changed:<webrtcnicetransport0> 1 1 connecting
0:00:18.658436640  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:871:_collate_ice_connection_states:<webrtcbin> transceiver 0x72811158 state 0x1
0:00:18.658521640  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:901:_collate_ice_connection_states:<webrtcbin> ICE connection state: 0x2
0:00:18.658587577  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:925:_collate_ice_connection_states:<webrtcbin> returning checking
0:00:18.658675494  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:1260:_update_ice_connection_state_task:<webrtcbin> ICE connection state change from new(0) to checking(1)
0:00:18.661991627  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 DTLS state: 0x0
0:00:18.662147669  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 ICE state: 0x1
0:00:18.662233814  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtcbin> ICE connection state: 0x2. DTLS connection state: 0x1
0:00:18.662296991  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1167:_collate_peer_connection_states:<webrtcbin> returning connecting
0:00:18.662385897  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:1295:_update_peer_connection_state_task:<webrtcbin> Peer connection state change from new(0) to connecting(1)
0:00:18.766348854  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:394:_find_ice_stream_for_session:<webrtcbin> Found ice stream id <webrtcicestream0> for session 0
0:00:18.766496353  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:3614:_add_ice_candidate:<webrtcbin> adding ICE candidate with mline:0, a=candidate:3577049713 1 tcp 1518280447 192.168.188.24 9 typ host tcptype active generation 0 ufrag LfLa network-id 1 network-cost 10
0:00:18.776977097  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:394:_find_ice_stream_for_session:<webrtcbin> Found ice stream id <webrtcicestream0> for session 0
0:00:18.777114596  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:3614:_add_ice_candidate:<webrtcbin> adding ICE candidate with mline:0, a=candidate:1463529746 1 udp 1686052607 80.133.188.133 62293 typ srflx raddr 192.168.188.24 rport 62293 generation 0 ufrag LfLa network-id 1 network-cost 10
0:00:18.832137626  5663 0x7284e580 DEBUG              webrtcbin gstwebrtcbin.c:5272:on_rtpbin_request_pt_map:<webrtcbin> getting pt map for pt 96 in session 0
0:00:18.832302053  5663 0x7284e580 TRACE              webrtcbin gstwebrtcbin.c:508:_find_transport_for_session:<webrtcbin> Found transport <transportstream0> for session 0
0:00:18.832466271  5663 0x7284e580 TRACE              webrtcbin gstwebrtcbin.c:5282:on_rtpbin_request_pt_map:<webrtcbin> Found caps application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, level-asymmetry-allowed=(string)1, packetization-mode=(string)1, profile-level-id=(string)42e01f, rtcp-fb-nack-pli=(boolean)true for pt 96 in session 0
0:00:18.834829544  5663 0x7284e580 LOG     webrtctransportsendbin transportsendbin.c:160:pad_block:<outputselector0:src_0> blocking pad with data buffer: 0x61e5e0a8, pts 99:99:99.999999999, dts 99:99:99.999999999, dur 99:99:99.999999999, size 80, offset none, offset_end none, flags 0x0
0:00:18.930513624  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:394:_find_ice_stream_for_session:<webrtcbin> Found ice stream id <webrtcicestream0> for session 0
0:00:18.930661853  5663 0x7284faf0 LOG                webrtcbin gstwebrtcbin.c:3614:_add_ice_candidate:<webrtcbin> adding ICE candidate with mline:0, a=candidate:1256709970 1 udp 41885439 3.82.129.190 52353 typ relay raddr 80.133.188.133 rport 62293 generation 0 ufrag LfLa network-id 1 network-cost 10
0:00:20.582659975  5663 0x72806490 DEBUG        webrtcicestream icestream.c:116:_on_candidate_gathering_done:<webrtcicestream0> 1 gathering done
0:00:20.583036640  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:988:_collate_ice_gathering_states:<webrtcbin> transceiver 0x72811158 gathering state: 0x2
0:00:20.583141483  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1010:_collate_ice_gathering_states:<webrtcbin> ICE gathering state: 0x4
0:00:20.583209192  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1020:_collate_ice_gathering_states:<webrtcbin> returning complete
0:00:20.583301170  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:1225:_update_ice_gathering_state_task:<webrtcbin> ICE gathering state change from gathering(1) to complete(2)
0:00:20.583776950  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:988:_collate_ice_gathering_states:<webrtcbin> transceiver 0x72811158 gathering state: 0x2
0:00:20.583873148  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1010:_collate_ice_gathering_states:<webrtcbin> ICE gathering state: 0x4
0:00:20.583943095  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1020:_collate_ice_gathering_states:<webrtcbin> returning complete
0:00:25.988388894  5663 0x72806490 DEBUG    webrtcnicetransport nicetransport.c:186:_on_component_state_changed:<webrtcnicetransport0> 1 1 failed
0:00:25.988710247  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:871:_collate_ice_connection_states:<webrtcbin> transceiver 0x72811158 state 0x4
0:00:25.988806236  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:901:_collate_ice_connection_states:<webrtcbin> ICE connection state: 0x10
0:00:25.988869777  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:909:_collate_ice_connection_states:<webrtcbin> returning failed
0:00:25.988970871  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:1260:_update_ice_connection_state_task:<webrtcbin> ICE connection state change from checking(1) to failed(4)
0:00:25.989440504  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1073:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 DTLS state: 0x0
0:00:25.990078002  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1086:_collate_peer_connection_states:<webrtcbin> transceiver 0x72811158 ICE state: 0x4
0:00:25.990643260  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1131:_collate_peer_connection_states:<webrtcbin> ICE connection state: 0x10. DTLS connection state: 0x1
0:00:25.991181383  5663 0x7284faf0 TRACE              webrtcbin gstwebrtcbin.c:1141:_collate_peer_connection_states:<webrtcbin> returning failed
0:00:25.991747840  5663 0x7284faf0 INFO               webrtcbin gstwebrtcbin.c:1295:_update_peer_connection_state_task:<webrtcbin> Peer connection state change from connecting(1) to failed(4)

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