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Unable to configure two-way audio on Dahua C4KP-P camera #1569

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alexanderek opened this issue Jan 25, 2025 · 3 comments
Open

Unable to configure two-way audio on Dahua C4KP-P camera #1569

alexanderek opened this issue Jan 25, 2025 · 3 comments
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question Further information is requested

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@alexanderek
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Hi,

I am trying to configure two-way audio on a Dahua C4KP-P camera, but it is not working as expected.

 streams:
    #(Dahua C4KP-P)
    kidsroom:
      - rtsp://[email protected]/cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif
      - rtsp://[email protected]/cam/realmonitor?channel=1&subtype=0#backchannel=0
      - ffmpeg:kidsroom#audio=opus
    kidsroom_sub:
      - rtsp://[email protected]/cam/realmonitor?channel=1&subtype=1

The microphone becomes available in the interface, but attempting to activate it results in errors.

2025-01-24 13:52:16.785 DBG [rtsp] new consumer stream=kidsroom
2025-01-24 13:52:29.307 DBG [rtsp] handle error=EOF
2025-01-24 13:52:32.263 INF [streams] can't add track error=EOF
2025-01-24 14:10:51.090 WRN github.com/AlexxIT/go2rtc/internal/streams/producer.go:171 > error="start from CONN state" url=rtsp://frigate:[email protected]/cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif

If the stream order is changed to the following:

kidsroom:
    - rtsp://[email protected]/cam/realmonitor?channel=1&subtype=0#backchannel=0
    - rtsp://[email protected]/cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif
    - ffmpeg:kidsroom#audio=opus

the microphone icon disappears completely from the interface.

Could you help identify what might be wrong with this configuration?

I've also left a little more information here on this issue:
@AlexxIT AlexxIT added the question Further information is requested label Jan 26, 2025
@AlexxIT
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AlexxIT commented Jan 26, 2025

I don't see in your stream info from other issue, that your camera supports two way audio.

@alexanderek
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@AlexxIT

If the configuration looks like this:

    kidsroom:
      - rtsp://frigate:[email protected]/cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif 
      - rtsp://frigate:[email protected]/cam/realmonitor?channel=1&subtype=0#backchannel=0  
      - ffmpeg:kidsroom#audio=opus

The microphone button appears in the interface, but when activated, nothing happens, and the following errors occur (as I mentioned earlier).

{
  "producers": [
    {
      "type": "RTSP active producer",
      "url": "rtsp://10.4.6.21/cam/realmonitor?channel=1\u0026subtype=0\u0026unicast=true\u0026proto=Onvif/",
      "remote_addr": "10.4.6.21:554",
      "user_agent": "go2rtc/1.9.2",
      "sdp": "v=0\r\no=- 2229913047 2229913047 IN IP4 0.0.0.0\r\ns=Media Server\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\na=control:*\r\na=range:npt=now-\r\na=x-summary:Oversea\r\nm=video 0 RTP/AVP 96\r\na=control:trackID=0\r\na=framerate:25.000000\r\na=rtpmap:96 H264/90000\r\na=fmtp:96 packetization-mode=1;profile-level-id=4D0032;sprop-parameter-sets=Z00AMukAUAFrQgAAAwACAAADAGUIAA==,aOqMbIAA\r\na=recvonly\r\nm=audio 0 RTP/AVP 97\r\na=control:trackID=1\r\na=rtpmap:97 MPEG4-GENERIC/16000\r\na=fmtp:97 streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1408\r\na=recvonly\r\nm=audio 0 RTP/AVP 97 100 8 101 0 102 103 104\r\na=control:trackID=5\r\na=rtpmap:97 L16/8000\r\na=rtpmap:100 L16/16000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:101 PCMA/16000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:102 PCMU/16000\r\na=rtpmap:103 MPEG4-GENERIC/8000\r\na=rtpmap:104 MPEG4-GENERIC/16000\r\na=sendonly\r\nm=application 0 RTP/AVP 107\r\na=control:trackID=4\r\na=rtpmap:107 vnd.onvif.metadata/90000\r\na=recvonly\r\n",
      "medias": [
        "video, recvonly, H.264 Main 5.0",
        "audio, recvonly, MPEG4-GENERIC/16000",
        "audio, sendonly, L16/8000, L16/16000, PCMA/8000, PCMA/16000, PCMU/8000, PCMU/16000, MPEG4-GENERIC/8000, MPEG4-GENERIC/16000",
        "application, recvonly, VND.ONVIF.METADATA"
      ],
      "receivers": [
        "96 H264, bytes=8297890, senders=3",
        "97 MPEG4-GENERIC/16000, bytes=84539, senders=3"
      ],
      "senders": [
        "97 L16/8000, bytes=0, receivers=2"
      ],
      "recv": 8459425
    },
    {
      "type": "RTSP active producer",
      "url": "rtsp://10.4.6.21/cam/realmonitor?channel=1\u0026subtype=0/",
      "remote_addr": "10.4.6.21:554",
      "user_agent": "go2rtc/1.9.2",
      "sdp": "v=0\r\no=- 2229913047 2229913047 IN IP4 0.0.0.0\r\ns=Media Server\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\na=control:*\r\na=packetization-supported:DH\r\na=rtppayload-supported:DH\r\na=range:npt=now-\r\na=x-summary:Oversea\r\nm=video 0 RTP/AVP 96\r\na=control:trackID=0\r\na=framerate:25.000000\r\na=rtpmap:96 H264/90000\r\na=fmtp:96 packetization-mode=1;profile-level-id=4D0032;sprop-parameter-sets=Z00AMukAUAFrQgAAAwACAAADAGUIAA==,aOqMbIAA\r\na=recvonly\r\nm=audio 0 RTP/AVP 97\r\na=control:trackID=1\r\na=rtpmap:97 MPEG4-GENERIC/16000\r\na=fmtp:97 streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1408\r\na=recvonly\r\n",
      "medias": [
        "video, recvonly, H.264 Main 5.0",
        "audio, recvonly, MPEG4-GENERIC/16000"
      ],
      "receivers": [
        "96 H264, bytes=0, senders=1",
        "97 MPEG4-GENERIC/16000, bytes=0, senders=1"
      ]
    },
    {
      "type": "RTSP passive producer",
      "url": "rtsp://127.0.0.1:8554/84ae10ae2bc9c27d5db16d50b7eb6e83",
      "remote_addr": "127.0.0.1:43150",
      "user_agent": "ffmpeg/go2rtc",
      "sdp": "v=0\r\no=- 0 0 IN IP4 127.0.0.1\r\ns=go2rtc/1.9.2\r\nc=IN IP4 127.0.0.1\r\nt=0 0\r\na=tool:libavformat LIBAVFORMAT_VERSION\r\nm=audio 0 RTP/AVP 96\r\nb=AS:64\r\na=rtpmap:96 opus/48000/2\r\na=control:streamid=0\r\n",
      "medias": [
        "audio, recvonly, OPUS/48000/2"
      ],
      "receivers": [
        "96 OPUS/48000/2, bytes=123209, senders=2"
      ],
      "recv": 134137
    }
  ],
  "consumers": [
    {
      "type": "RTSP passive consumer",
      "url": "rtsp://127.0.0.1:8554/kidsroom",
      "remote_addr": "127.0.0.1:35738",
      "user_agent": "FFmpeg Frigate/0.14.1-f4f3cfa",
      "sdp": "v=0\r\no=- 1 1 IN IP4 0.0.0.0\r\ns=go2rtc/1.9.2\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\nm=video 0 RTP/AVP 96\r\na=rtpmap:96 H264/90000\r\na=fmtp:96 packetization-mode=1;profile-level-id=4D0032;sprop-parameter-sets=Z00AMukAUAFrQgAAAwACAAADAGUIAA==,aOqMbIAA\r\na=control:trackID=0\r\nm=audio 0 RTP/AVP 97\r\na=rtpmap:97 MPEG4-GENERIC/16000\r\na=fmtp:97 streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1408\r\na=control:trackID=1\r\n",
      "medias": [
        "video, sendonly, H264, H265",
        "audio, sendonly, MPEG4-GENERIC"
      ],
      "senders": [
        "96 H264, bytes=16283374, receivers=1",
        "97 MPEG4-GENERIC/16000, bytes=161663, receivers=1"
      ],
      "send": 16645629
    },
    {
      "type": "RTSP passive consumer",
      "url": "rtsp://127.0.0.1:8554/kidsroom?audio",
      "remote_addr": "127.0.0.1:43140",
      "user_agent": "go2rtc/ffmpeg",
      "sdp": "v=0\r\no=- 1 1 IN IP4 0.0.0.0\r\ns=go2rtc/1.9.2\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\nm=audio 0 RTP/AVP 96\r\na=rtpmap:96 MPEG4-GENERIC/16000\r\na=fmtp:96 streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1408\r\na=control:trackID=0\r\n",
      "medias": [
        "audio, sendonly, ANY"
      ],
      "senders": [
        "96 MPEG4-GENERIC/16000, bytes=106807, receivers=1"
      ],
      "send": 113591
    },
    {
      "type": "WebRTC/WebSocket async passive consumer",
      "remote_addr": "udp4 host 10.4.4.36:58821",
      "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15",
      "medias": [
        "video, sendonly, H264, VP8, VP9",
        "audio, recvonly, OPUS/48000/2, G722/8000, PCMU/8000, PCMA/8000",
        "audio, sendonly, OPUS/48000/2, G722/8000, PCMU/8000, PCMA/8000, L16, PCML"
      ],
      "receivers": [
        "8 PCMA/8000, bytes=170720, senders=0"
      ],
      "senders": [
        "96 H264, bytes=8297890, receivers=1",
        "111 OPUS/48000/2, bytes=85505, receivers=1"
      ],
      "recv": 192970,
      "send": 8480412
    },
    {
      "type": "probe",
      "remote_addr": "10.4.4.36, 172.18.0.3:51854",
      "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15",
      "medias": [
        "video, sendonly, ALL",
        "audio, sendonly, ALL",
        "audio, recvonly, ANY"
      ],
      "receivers": [
        "0 ANY, bytes=0, senders=1"
      ],
      "senders": [
        "96 H264, bytes=0, receivers=1",
        "96 H264, bytes=0, receivers=1",
        "97 MPEG4-GENERIC/16000, bytes=0, receivers=1",
        "97 MPEG4-GENERIC/16000, bytes=0, receivers=1",
        "96 OPUS/48000/2, bytes=0, receivers=1"
      ]
    }
  ]
}

However, if the order of the configuration lines is changed like this:

    kidsroom:
      - rtsp: //frigate:[email protected]/cam/realmonitor?channel=1&subtype=0#backchannel=0  
      - rtsp: //frigate:[email protected]/cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif 
      - ffmpeg:kidsroom#audio=opus

The microphone button no longer appears in the interface.

{
  "producers": [
    {
      "type": "RTSP active producer",
      "url": "rtsp://10.4.6.21/cam/realmonitor?channel=1\u0026subtype=0/",
      "remote_addr": "10.4.6.21:554",
      "user_agent": "go2rtc/1.9.2",
      "sdp": "v=0\r\no=- 2229913047 2229913047 IN IP4 0.0.0.0\r\ns=Media Server\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\na=control:*\r\na=packetization-supported:DH\r\na=rtppayload-supported:DH\r\na=range:npt=now-\r\na=x-summary:Oversea\r\nm=video 0 RTP/AVP 96\r\na=control:trackID=0\r\na=framerate:25.000000\r\na=rtpmap:96 H264/90000\r\na=fmtp:96 packetization-mode=1;profile-level-id=4D0032;sprop-parameter-sets=Z00AMukAUAFrQgAAAwACAAADAGUIAA==,aOqMbIAA\r\na=recvonly\r\nm=audio 0 RTP/AVP 97\r\na=control:trackID=1\r\na=rtpmap:97 MPEG4-GENERIC/16000\r\na=fmtp:97 streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1408\r\na=recvonly\r\n",
      "medias": [
        "video, recvonly, H.264 Main 5.0",
        "audio, recvonly, MPEG4-GENERIC/16000"
      ],
      "receivers": [
        "96 H264, bytes=27339654, senders=3",
        "97 MPEG4-GENERIC/16000, bytes=163354, senders=3"
      ],
      "recv": 27755960
    },
    {
      "type": "RTSP active producer",
      "url": "rtsp://10.4.6.21/cam/realmonitor?channel=1\u0026subtype=0\u0026unicast=true\u0026proto=Onvif/",
      "remote_addr": "10.4.6.21:554",
      "user_agent": "go2rtc/1.9.2",
      "sdp": "v=0\r\no=- 2229913047 2229913047 IN IP4 0.0.0.0\r\ns=Media Server\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\na=control:*\r\na=range:npt=now-\r\na=x-summary:Oversea\r\nm=video 0 RTP/AVP 96\r\na=control:trackID=0\r\na=framerate:25.000000\r\na=rtpmap:96 H264/90000\r\na=fmtp:96 packetization-mode=1;profile-level-id=4D0032;sprop-parameter-sets=Z00AMukAUAFrQgAAAwACAAADAGUIAA==,aOqMbIAA\r\na=recvonly\r\nm=audio 0 RTP/AVP 97\r\na=control:trackID=1\r\na=rtpmap:97 MPEG4-GENERIC/16000\r\na=fmtp:97 streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1408\r\na=recvonly\r\nm=application 0 RTP/AVP 107\r\na=control:trackID=4\r\na=rtpmap:107 vnd.onvif.metadata/90000\r\na=recvonly\r\n",
      "medias": [
        "video, recvonly, H.264 Main 5.0",
        "audio, recvonly, MPEG4-GENERIC/16000",
        "application, recvonly, VND.ONVIF.METADATA"
      ],
      "receivers": [
        "96 H264, bytes=0, senders=1",
        "97 MPEG4-GENERIC/16000, bytes=0, senders=1"
      ]
    },
    {
      "type": "RTSP passive producer",
      "url": "rtsp://127.0.0.1:8554/84ae10ae2bc9c27d5db16d50b7eb6e83",
      "remote_addr": "127.0.0.1:38236",
      "user_agent": "ffmpeg/go2rtc",
      "sdp": "v=0\r\no=- 0 0 IN IP4 127.0.0.1\r\ns=go2rtc/1.9.2\r\nc=IN IP4 127.0.0.1\r\nt=0 0\r\na=tool:libavformat LIBAVFORMAT_VERSION\r\nm=audio 0 RTP/AVP 96\r\nb=AS:64\r\na=rtpmap:96 opus/48000/2\r\na=control:streamid=0\r\n",
      "medias": [
        "audio, recvonly, OPUS/48000/2"
      ],
      "receivers": [
        "96 OPUS/48000/2, bytes=185689, senders=2"
      ],
      "recv": 197549
    }
  ],
  "consumers": [
    {
      "type": "RTSP passive consumer",
      "url": "rtsp://127.0.0.1:8554/kidsroom",
      "remote_addr": "127.0.0.1:42656",
      "user_agent": "FFmpeg Frigate/0.14.1-f4f3cfa",
      "sdp": "v=0\r\no=- 1 1 IN IP4 0.0.0.0\r\ns=go2rtc/1.9.2\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\nm=video 0 RTP/AVP 96\r\na=rtpmap:96 H264/90000\r\na=fmtp:96 packetization-mode=1;profile-level-id=4D0032;sprop-parameter-sets=Z00AMukAUAFrQgAAAwACAAADAGUIAA==,aOqMbIAA\r\na=control:trackID=0\r\nm=audio 0 RTP/AVP 97\r\na=rtpmap:97 MPEG4-GENERIC/16000\r\na=fmtp:97 streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1408\r\na=control:trackID=1\r\n",
      "medias": [
        "video, sendonly, H264, H265",
        "audio, sendonly, MPEG4-GENERIC"
      ],
      "senders": [
        "96 H264, bytes=27339654, receivers=1",
        "97 MPEG4-GENERIC/16000, bytes=163354, receivers=1"
      ],
      "send": 27840160
    },
    {
      "type": "RTSP passive consumer",
      "url": "rtsp://127.0.0.1:8554/kidsroom?audio",
      "remote_addr": "127.0.0.1:38232",
      "user_agent": "go2rtc/ffmpeg",
      "sdp": "v=0\r\no=- 1 1 IN IP4 0.0.0.0\r\ns=go2rtc/1.9.2\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\nm=audio 0 RTP/AVP 96\r\na=rtpmap:96 MPEG4-GENERIC/16000\r\na=fmtp:96 streamtype=5;profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1408\r\na=control:trackID=0\r\n",
      "medias": [
        "audio, sendonly, ANY"
      ],
      "senders": [
        "96 MPEG4-GENERIC/16000, bytes=46929, receivers=1"
      ],
      "send": 51841
    },
    {
      "type": "WebRTC/WebSocket async passive consumer",
      "remote_addr": "udp4 prflx 10.4.4.36:52218 related :0",
      "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15",
      "medias": [
        "video, sendonly, H264, VP8, VP9",
        "audio, sendonly, OPUS/48000/2, G722/8000, PCMU/8000, PCMA/8000, L16, PCML"
      ],
      "senders": [
        "96 H264, bytes=8521267, receivers=1",
        "111 OPUS/48000/2, bytes=185689, receivers=1"
      ],
      "send": 8810356
    },
    {
      "type": "probe",
      "remote_addr": "10.4.4.36, 172.18.0.3:34122",
      "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15",
      "medias": [
        "video, sendonly, ALL",
        "audio, sendonly, ALL",
        "audio, recvonly, ANY"
      ],
      "senders": [
        "96 H264, bytes=0, receivers=1",
        "96 H264, bytes=0, receivers=1",
        "97 MPEG4-GENERIC/16000, bytes=0, receivers=1",
        "97 MPEG4-GENERIC/16000, bytes=0, receivers=1",
        "96 OPUS/48000/2, bytes=0, receivers=1"
      ]
    }
  ]
}

Let me know if further details or clarifications are needed!

@AlexxIT
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AlexxIT commented Jan 26, 2025

You shouldn't add RTSP source two times.

Maybe it's a unique feature of your camera. Some Dahua cameras have glitchy two way support via RTSP.

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