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GStreamer pipwiresrc to webrtcbin pipeline logs

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Oct 3rd, 2025
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  1. 0:00:02.770669937 3897 0x5e997feeaf50 LOG webrtcbin gstwebrtcbin.c:2471:_create_webrtc_transceiver:<webrtc> created new transceiver <webrtctransceiver0> with direction sendrecv (4), mline 4294967295, kind unknown (0)
  2. 0:00:02.770702576 3897 0x5e997feeaf50 LOG webrtcbin gstwebrtcbin.c:8279:gst_webrtc_bin_request_new_pad:<webrtc> Created new transceiver <webrtctransceiver0>
  3. 0:00:02.770799574 3897 0x5e997feeaf50 DEBUG webrtcbin gstwebrtcbin.c:484:gst_webrtc_bin_pad_new:<'':sink_0> new visible pad with direction sink
  4. 0:00:02.771598846 3897 0x5e997feeaf50 DEBUG webrtcbin gstwebrtcbin.c:8002:gst_webrtc_bin_change_state: changing state: NULL => READY
  5. 0:00:02.771765893 3897 0x5e997feeaf50 LOG webrtcbin gstwebrtcbin.c:1760:_check_if_negotiation_is_needed:<webrtc> checking if negotiation is needed
  6. 0:00:02.771779223 3897 0x5e997feeaf50 LOG webrtcbin gstwebrtcbin.c:1765:_check_if_negotiation_is_needed:<webrtc> no negotiation possible until caps have been received on all sink pads
  7. 0:00:02.773849788 3897 0x5e997feeaf50 DEBUG webrtcbin gstwebrtcbin.c:8002:gst_webrtc_bin_change_state: changing state: READY => PAUSED
  8. 0:00:02.774369055 3897 0x79b6b8000ff0 FIXME default gstutils.c:4088:gst_element_decorate_stream_id_internal:<pipewiresrc0> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
  9. 0:00:02.779998366 3897 0x5e997feeaf50 DEBUG webrtcbin gstwebrtcbin.c:8002:gst_webrtc_bin_change_state: changing state: PAUSED => PLAYING
  10. 0:00:02.781662264 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:4847:_create_sdp_task:<webrtc> creating offer sdp with options (NULL)
  11. 0:00:02.781690091 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:4150:_create_offer_task:<webrtc> adding transceiver <webrtctransceiver0> at media index 0
  12. 0:00:02.781699353 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:1990:_find_codec_preferences:<webrtc> retrieving codec preferences from <webrtctransceiver0>
  13. 0:00:02.781754287 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:1932:_query_pad_caps:<webrtc> Using peer query caps: application/x-rtp, media=(string)video, payload=(int)96, encoding-name=(string)VP8, clock-rate=(int)90000
  14. 0:00:02.781775166 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:3490:sdp_media_from_transceiver:<webrtctransceiver0> 0 Generating new ice parameters mline -1, mid (null)
  15. 0:00:02.781795509 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:3559:sdp_media_from_transceiver:<webrtc> Adding 0-th caps application/x-rtp, media=(string)video, payload=(int)96, encoding-name=(string)VP8, clock-rate=(int)90000, rtcp-fb-nack-pli=(boolean)true, rtcp-fb-ccm-fir=(boolean)true, rtcp-fb-transport-cc=(boolean)true to 0-th media
  16. 0:00:02.781824019 3897 0x5e997fedde80 WARN webrtcbin gstwebrtcbin.c:3597:sdp_media_from_transceiver:<webrtc> Caps application/x-rtp, media=(string)video, payload=(int)96, encoding-name=(string)VP8, clock-rate=(int)90000, rtcp-fb-nack-pli=(boolean)true, rtcp-fb-ccm-fir=(boolean)true, rtcp-fb-transport-cc=(boolean)true are missing ssrc
  17. 0:00:02.794215908 3897 0x79b6b8000b70 DEBUG webrtcbin gstwebrtcbin.c:331:gst_webrtcbin_sink_event:<webrtc> On <webrtc:sink_0> checking negotiation? 1, caps application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)VP8, payload=(int)96, ssrc=(uint)3345897306, timestamp-offset=(uint)3318092375, seqnum-offset=(uint)10328, a-framerate=(string)30
  18. 0:00:02.823952517 3897 0x79b6b8001230 FIXME default gstutils.c:4088:gst_element_decorate_stream_id_internal:<nicesrc0> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
  19. 0:00:02.823988781 3897 0x79b6b8001230 WARN GST_PADS gstpad.c:4392:gst_pad_peer_query:<nicesrc0:src> could not send sticky events
  20. 0:00:02.824209703 3897 0x79b6b8000b70 LOG webrtcbin gstwebrtcbin.c:1760:_check_if_negotiation_is_needed:<webrtc> checking if negotiation is needed
  21. 0:00:02.824222309 3897 0x79b6b8000b70 LOG webrtcbin gstwebrtcbin.c:1776:_check_if_negotiation_is_needed:<webrtc> no local description set
  22. [DEBUG] - 2025-10-03 09:58:03,604 - WebRTC negotiation needed
  23. 0:00:02.825908798 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:6410:_set_description_task:<webrtc> Attempting to set local offer in the stable state
  24. 0:00:02.825941949 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:6591:_set_description_task:<webrtc> we are in ice controlling mode: true
  25. 0:00:02.827917633 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:1633:_update_ice_gathering_state_task:<webrtc> ICE gathering state change from new(0) to gathering(1)
  26. 0:00:03.027777287 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:1633:_update_ice_gathering_state_task:<webrtc> ICE gathering state change from gathering(1) to complete(2)
  27. 0:00:03.076272943 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:6410:_set_description_task:<webrtc> Attempting to set remote answer in the have-local-offer state
  28. 0:00:03.076441985 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:6591:_set_description_task:<webrtc> we are in ice controlling mode: true
  29. 0:00:03.076589778 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5629:_update_transport_ptmap_from_media:<webrtc> mapping sdp session level attributes to caps
  30. 0:00:03.076623736 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5631:_update_transport_ptmap_from_media:<webrtc> mapping sdp media level attributes to caps
  31. 0:00:03.076667085 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5644:_update_transport_ptmap_from_media:<webrtc> looking at 0 pt: 96
  32. 0:00:03.076842091 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:5794:_update_transceiver_from_sdp_media:<webrtc> marking stream 0x79b6c4004520 as active
  33. 0:00:03.076878350 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5802:_update_transceiver_from_sdp_media:<webrtc> transceiver <webrtctransceiver0> direction change from none to sendonly
  34. 0:00:03.076911524 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5834:_update_transceiver_from_sdp_media:<webrtc> found existing send pad <webrtc:sink_0> for transceiver <webrtctransceiver0> with msid '(null)'
  35. 0:00:03.077117281 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:6646:_set_description_task:<webrtc: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)VP8, payload=(int)96, ssrc=(uint)3345897306, timestamp-offset=(uint)3318092375, seqnum-offset=(uint)10328, a-framerate=(string)30
  36. 0:00:03.077158796 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:5262:_connect_input_stream:<webrtc:sink_0> linking input stream 0
  37. 0:00:03.077353693 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5007:_build_fec_encoder:<webrtc> Creating ULPFEC encoder for mline 0 with pt -1
  38. 0:00:03.077867646 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5025:_build_fec_encoder:<webrtc> Creating RED encoder for mline 0 with pt -1
  39. 0:00:03.077965109 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5116:_set_internal_rtpbin_element_props_from_stream:<transportstream0> have 0 rtx payloads
  40. 0:00:03.077978208 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5127:_set_internal_rtpbin_element_props_from_stream:<transportstream0> setting payload map on (NULL) : (NULL) and application/x-rtp-pt-map;
  41. 0:00:03.077993169 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5166:_set_internal_rtpbin_element_props_from_stream:<webrtc> stream <transportstream0> transceiver <webrtctransceiver0> has FEC payload 0 and RED payload -1
  42. 0:00:03.078180356 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:7481:on_rtpbin_request_aux_sender:<webrtc> requesting aux sender for session 0 stream <transportstream0>
  43. 0:00:03.078351591 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5116:_set_internal_rtpbin_element_props_from_stream:<transportstream0> have 0 rtx payloads
  44. 0:00:03.078364199 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5127:_set_internal_rtpbin_element_props_from_stream:<transportstream0> setting payload map on (NULL) : <rtprtxsend0> and application/x-rtp-pt-map;
  45. 0:00:03.078380691 3897 0x5e997fedde80 DEBUG webrtcbin gstwebrtcbin.c:5166:_set_internal_rtpbin_element_props_from_stream:<webrtc> stream <transportstream0> transceiver <webrtctransceiver0> has FEC payload 0 and RED payload -1
  46. 0:00:03.079378664 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:1760:_check_if_negotiation_is_needed:<webrtc> checking if negotiation is needed
  47. 0:00:03.079414426 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:1877:_check_if_negotiation_is_needed:<webrtc> no negotiation needed
  48. 0:00:03.079460086 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:5423:_add_ice_candidate:<webrtc> adding ICE candidate with mline:0, a=candidate:0 1 UDP 2122252543 5ee33e6e-3b37-40d6-b3a6-0e9bdd0795e4.local 39033 typ host
  49. 0:00:03.079566750 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:1660:_update_ice_connection_state_task:<webrtc> ICE connection state change from new(0) to checking(1)
  50. 0:00:03.079601640 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:1695:_update_peer_connection_state_task:<webrtc> Peer connection state change from new(0) to connecting(1)
  51. 0:00:03.081423558 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:5423:_add_ice_candidate:<webrtc> adding ICE candidate with mline:0, a=candidate:2 1 TCP 2105524479 5ee33e6e-3b37-40d6-b3a6-0e9bdd0795e4.local 9 typ host tcptype active
  52. 0:00:03.147576088 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:5423:_add_ice_candidate:<webrtc> adding ICE candidate with mline:0, a=candidate:1 1 UDP 1686052863 174.45.136.202 12760 typ srflx raddr 0.0.0.0 rport 0
  53. 0:00:03.162309088 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:1660:_update_ice_connection_state_task:<webrtc> ICE connection state change from checking(1) to completed(3)
  54. 0:00:03.163062740 3897 0x79b6b8001b30 FIXME default gstutils.c:4088:gst_element_decorate_stream_id_internal:<dtlsenc0> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
  55. 0:00:03.169270377 3897 0x5e997fedde80 INFO webrtcbin gstwebrtcbin.c:1695:_update_peer_connection_state_task:<webrtc> Peer connection state change from connecting(1) to connected(2)
  56. 0:00:03.174095000 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:5423:_add_ice_candidate:<webrtc> adding ICE candidate with mline:0, a=candidate:1 1 UDP 1686051839 174.45.136.202 47154 typ srflx raddr 0.0.0.0 rport 0
  57. 0:00:03.318443111 3897 0x79b6b8000b70 WARN rtprtxsend gstrtprtxsend.c:942:gst_rtp_rtx_send_sink_event:<rtprtxsend0> Payload 96 not in rtx-pt-map
  58. 0:00:03.318580985 3897 0x79b6b8000b70 INFO webrtcbin gstwebrtcbin.c:7791:on_rtpbin_new_sender_ssrc:<webrtc> session 0 ssrc 3345897306 new sender ssrc
  59. 0:00:03.318753829 3897 0x79b6b8000b70 WARN rtpsession gstrtpsession.c:2484:gst_rtp_session_chain_send_rtp_common:<rtpsession0> Can't determine running time for this packet without knowing configured latency
  60. 0:00:03.373829716 3897 0x79b6b8001470 INFO webrtcbin gstwebrtcbin.c:7712:on_rtpbin_new_ssrc:<webrtc> session 0 ssrc 3138824319 new ssrc
  61. 0:00:10.260735866 3897 0x79b6c40b1fa0 INFO webrtcbin gstwebrtcbin.c:7700:on_rtpbin_sender_timeout:<webrtc> session 0 ssrc 3345897306 sender timeout
  62. 0:00:14.946464010 3897 0x5e997fedde80 LOG webrtcbin gstwebrtcbin.c:5423:_add_ice_candidate:<webrtc> adding ICE candidate with mline:0, (null)
  63.  
Tags: pipewire webrtc gstreamer webrtcbin
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