[Config Support]: Recordings showing black screen

[BurningTheSky]

Describe the problem you are having

I've had recordings from my Hikvision camera working without issue until today when I removed 2 detection models and now the recordings are just a black screen. There's audio but no video. The live view has sound and video. I can't see if I've accidentally deleted something else.

Version

0.12.1-367d724

Frigate config file

go2rtc:
  streams:
    Front:
      - "ffmpeg:rtsp://user:password@192.168.x.x:554//Streaming/Channels/101/#video=copy#audio=aac"

cameras:

  Front: # <------ Name the camera
    ffmpeg:
      inputs:
        - path: rtsp://127.0.0.1:8554/Front?video&audio=aac
          input_args: preset-rtsp-restream
          roles:
            - record
        - path: rtsp://127.0.0.1:8554/Front247?video
          input_args: preset-rtsp-restream
          roles:
            - detect
          hwaccel_args: preset-nvidia-h264
      output_args:
        record: preset-record-generic-audio-aac
    detect:
      enabled: True # <---- disable detection until you have a working camera feed
      width: 640 # <---- update for your camera's resolution
      height: 360 # <---- update for your camera's resolution
      fps: 7
    objects:
      track:
        - person
        - bicycle
        - car
        - motorcycle
        - cat
        - dog
    record:
      enabled: True
      retain:
          days: 3
          mode: all
      events:
        pre_capture: 5
        post_capture: 5
        retain:
          default: 42
          mode: active_objects
    motion:
      mask:    
        - 595,0,640,0,640,87,619,72,588,46,549,23,497,0

Relevant log output

I can't see any errors, and I'm not sure what I should be looking for

Frigate stats

No response

Operating system

UNRAID

Install method

Docker Compose

Coral version

PCIe

Any other information that may be helpful

No response

[NickM-27]

more information is needed like what the error is in the browser, if you see recordings being created in storage, etc.

[NickM-27]

ffprobe from the system page will also be helpful

[BurningTheSky]

Sorry for the delay, a hard restart of the container solved the issue initially so I thought it was solved but it has reoccured. There's no error in the browser that I can see. I didn't notice it happened a couple of days ago so I don't think the logs go far enough back to see the trigger. The recordings are being created as I can hear audio on the recording, there's just no image.

Stupidly I just restarted the docker before getting the ffprobe data but this is it now:

fprobe Output
Stream 0:
Return Code: 0

Video:

Codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
Resolution: 3200x1800
FPS: 20/1

Audio:

Codec: AAC (Advanced Audio Coding)

Stream 1:
Return Code: 0

Video:

Codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
Resolution: 640x360
FPS: 8/1

Copy

[BurningTheSky]

Also, the thumbnails for events seem to be being created correctly. Each file that is created when it's in error is only a max of 162KB. The sub stream seem to be unaffected and carry on recording so it's only stream 0 that's affected

[NickM-27]

I'd suggest updating go2rtc https://docs.frigate.video/configuration/advanced#custom-go2rtc-version

[BurningTheSky]

Thanks, I'll give that a try. I've updated from 1.8.1 to 1.8.4 and will keep an eye on it

[BurningTheSky]

happened again, ffprobe doesn't seem out of shape:

Ffprobe Output
Stream 0:
Return Code: 0

Video:

Codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
Resolution: 3200x1800
FPS: 20/1

Audio:

Codec: AAC (Advanced Audio Coding)

Stream 1:
Return Code: 0

Video:

Codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
Resolution: 640x360
FPS: 8/1

I've tried going back to the version that comes with frigate to see if that helps. It seemed to happen when the container was restarted by the host after a backup but I don't see any issue in the log.

{"log":"2023-12-31 11:38:02.968255100  frame=  467 fps= 19 q=-1.0 size=N/A time=00:00:27.47 bitrate=N/A speed=1.09x    \rframe=  630 fps= 25 q=-1.0 size=N/A time=00:00:27.31 bitrate=N/A speed=1.06x    \rframe=  464 fps= 19 q=-1.0 size=N/A time=00:00:27.34 bitrate=N/A speed=1.09x    \rframe=  457 fps= 19 q=-1.0 size=N/A time=00:00:27.01 bitrate=N/A speed= 1.1x    \rframe=  353 fps= 14 q=-1.0 size=N/A time=00:00:27.62 bitrate=N/A speed=1.11x    \rframe=  349 fps= 14 q=-1.0 size=N/A time=00:00:27.40 bitrate=N/A speed=1.11x    \rframe=  477 fps= 19 q=-1.0 size=N/A time=00:00:27.91 bitrate=N/A speed=1.09x    \rframe=  475 fps= 19 q=-1.0 size=N/A time=00:00:27.78 bitrate=N/A speed=1.09x    \rframe=  644 fps= 25 q=-1.0 size=N/A time=00:00:27.82 bitrate=N/A speed=1.06x    \rframe=  467 fps= 19 q=-1.0 size=N/A time=00:00:27.52 bitrate=N/A speed= 1.1x    \rframe=  360 fps= 14 q=-1.0 size=N/A time=00:00:28.13 bitrate=N/A speed=1.11x    \rframe=  358 fps= 14 q=-1.0 size=N/A time=00:00:27.98 bitrate=N/A speed=1.11x    \rframe=  487 fps= 19 q=-1.0 size=N/A time=00:00:28.49 bitrate=N/A speed=1.09x    \rframe=  485 fps= 19 q=-1.0 size=N/A time=00:00:28.36 bitrate=N/A speed=1.09x    \rframe=  657 fps= 25 q=-1.0 size=N/A time=00:00:28.39 bitrate=N/A speed=1.06x    \rframe=  478 fps= 19 q=-1.0 size=N/A time=00:00:28.03 bitrate=N/A speed=1.09x    \rframe=  368 fps= 14 q=-1.0 size=N/A time=00:00:28.64 bitrate=N/A speed= 1.1x    \rframe=  367 fps= 14 q=-1.0 size=N/A time=00:00:28.55 bitrate=N/A speed=1.11x    \rframe=  495 fps= 19 q=-1.0 size=N/A time=00:00:28.87 bitrate=N/A speed=1.09x    \rframe=  669 fps= 25 q=-1.0 size=N/A time=00:00:28.91 bitrate=N/A speed=1.06x    \rframe=  498 fps= 19 q=-1.0 size=N/A time=00:00:28.94 bitrate=N/A speed=1.08x    \rframe=  489 fps= 19 q=-1.0 size=N/A time=00:00:28.54 bitrate=N/A speed=1.09x    \rframe=  377 fps= 14 q=-1.0 size=N/A time=00:00:29.22 bitrate=N/A speed= 1.1x    \rframe=  376 fps= 14 q=-1.0 size=N/A time=00:00:29.13 bitrate=N/A speed= 1.1x    \rframe=  504 fps= 19 q=-1.0 size=N/A time=00:00:29.32 bitrate=N/A speed=1.08x    \rframe=  507 fps= 19 q=-1.0 size=N/A time=00:00:29.45 bitrate=N/A speed=1.08x    \rframe=  679 fps= 25 q=-1.0 size=N/A time=00:00:29.29 bitrate=N/A speed=1.06x    \rframe=  498 fps= 19 q=-1.0 size=N/A time=00:00:29.06 bitrate=N/A speed=1.09x    \rframe=  385 fps= 14 q=-1.0 size=N/A time=00:00:29.73 bitrate=N/A speed=1.09x    \rframe=  385 fps= 14 q=-1.0 size=N/A time=00:00:29.77 bitrate=N/A speed= 1.1x    \rframe=  516 fps= 19 q=-1.0 size=N/A time=00:00:29.90 bitrate=N/A speed=1.08x    \rframe=  689 fps= 24 q=-1.0 size=N/A time=00:00:29.67 bitrate=N/A speed=1.05x    \rframe=  519 fps= 19 q=-1.0 size=N/A time=00:00:30.03 bitrate=N/A speed=1.08x    \rframe=  509 fps= 19 q=-1.0 size=N/A time=00:00:29.63 bitrate=N/A speed=1.09x    \rframe=  396 fps= 14 q=-1.0 size=N/A time=00:00:30.50 bitrate=N/A speed= 1.1x    \rframe=  391 fps= 14 q=-1.0 size=N/A time=00:00:30.22 bitrate=N/A speed= 1.1x    \rframe=  527 fps= 19 q=-1.0 size=N/A time=00:00:30.47 bitrate=N/A speed=1.08x    \rframe=  523 fps= 19 q=-1.0 size=N/A time=00:00:30.22 bitrate=N/A speed=1.07x    \rframe=  519 fps= 19 q=-1.0 size=N/A time=00:00:30.08 bitrate=N/A speed=1.09x    \rframe=  709 fps= 25 q=-1.0 size=N/A time=00:00:30.51 bitrate=N/A speed=1.06x    \rframe=  404 fps= 14 q=-1.0 size=N/A time=00:00:31.07 bitrate=N/A speed= 1.1x    \rframe=  401 fps= 14 q=-1.0 size=N/A time=00:00:30.86 bitrate=N/A speed= 1.1x    \rframe=  539 fps= 19 q=-1.0 size=N/A time=00:00:31.05 bitrate=N/A speed=1.08x    \rframe=  721 fps= 25 q=-1.0 size=N/A time=00:00:30.89 bitrate=N/A speed=1.05x    \rframe=  537 fps= 19 q=-1.0 size=N/A time=00:00:30.98 bitrate=N/A speed=1.08x    \rframe=  530 fps= 19 q=-1.0 size=N/A time=00:00:30.66 bitrate=N/A speed=1.08x    \r[h264 @ 0x562a94823200] error while decoding MB 193 101, bytestream -13\n","stream":"stdout","time":"2023-12-31T11:38:02.984555064Z"}
{"log":"2023-12-31 11:38:02.968266065  [h264 @ 0x562a94823200] concealing 2256 DC, 2256 AC, 2256 MV errors in P frame\n","stream":"stdout","time":"2023-12-31T11:38:02.984618899Z"}
{"log":"2023-12-31 11:38:03.129204516  frame=  410 fps= 14 q=-1.0 size=N/A time=00:00:31.46 bitrate=N/A speed=1.09x    \r[h264 @ 0x562a94823200] Increasing reorder buffer to 1\n","stream":"stdout","time":"2023-12-31T11:38:03.132185623Z"}
{"log":"2023-12-31 11:38:03.815838883  frame=  547 fps= 19 q=-1.0 size=N/A time=00:00:31.43 bitrate=N/A speed=1.08x    \rframe=  549 fps= 19 q=-1.0 size=N/A time=00:00:31.56 bitrate=N/A speed=1.07x    \rframe=  409 fps= 14 q=-1.0 size=N/A time=00:00:31.37 bitrate=N/A speed= 1.1x    \rframe=  733 fps= 25 q=-1.0 size=N/A time=00:00:31.47 bitrate=N/A speed=1.05x    \rframe=  540 fps= 19 q=-1.0 size=N/A time=00:00:31.17 bitrate=N/A speed=1.08x    \rframe=  420 fps= 14 q=-1.0 size=N/A time=00:00:32.10 bitrate=N/A speed=1.09x    \rframe=  561 fps= 19 q=-1.0 size=N/A time=00:00:32.14 bitrate=N/A speed=1.08x    \rframe=  550 fps= 19 q=-1.0 size=N/A time=00:00:31.68 bitrate=N/A speed=1.08x    \rframe=  559 fps= 19 q=-1.0 size=N/A time=00:00:32.01 bitrate=N/A speed=1.08x    \rframe=  748 fps= 25 q=-1.0 size=N/A time=00:00:31.98 bitrate=N/A speed=1.05x    \rframe=  418 fps= 14 q=-1.0 size=N/A time=00:00:32.01 bitrate=N/A speed= 1.1x    \rInput #0, rtsp, from 'rtsp://user:password@192.168.x.54:554//Streaming/Channels/101/':\n","stream":"stdout","time":"2023-12-31T11:38:03.828594667Z"}
{"log":"2023-12-31 11:38:03.815846915    Metadata:\n","stream":"stdout","time":"2023-12-31T11:38:03.828633429Z"}
{"log":"2023-12-31 11:38:03.815852083      title           : Media Presentation\n","stream":"stdout","time":"2023-12-31T11:38:03.828709137Z"}
{"log":"2023-12-31 11:38:03.815856902    Duration: N/A, start: 0.000000, bitrate: N/A\n","stream":"stdout","time":"2023-12-31T11:38:03.828722337Z"}
{"log":"2023-12-31 11:38:03.815862070    Stream #0:0: Video: h264 (Main), yuvj420p(pc, progressive), 3200x1800 [SAR 1:1 DAR 16:9], 20 fps, 25 tbr, 90k tbn\n","stream":"stdout","time":"2023-12-31T11:38:03.828733302Z"}
{"log":"2023-12-31 11:38:03.815866819    Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp\n","stream":"stdout","time":"2023-12-31T11:38:03.828744198Z"}
{"log":"2023-12-31 11:38:03.815871988  Stream mapping:\n","stream":"stdout","time":"2023-12-31T11:38:03.828756909Z"}
{"log":"2023-12-31 11:38:03.815876737    Stream #0:0 -\u003e #0:0 (copy)\n","stream":"stdout","time":"2023-12-31T11:38:03.828767804Z"}
{"log":"2023-12-31 11:38:03.815881975    Stream #0:1 -\u003e #0:1 (aac (native) -\u003e aac (native))\n","stream":"stdout","time":"2023-12-31T11:38:03.828779607Z"}
{"log":"2023-12-31 11:38:03.815886654  Press [q] to stop, [?] for help\n","stream":"stdout","time":"2023-12-31T11:38:03.828790502Z"}
{"log":"2023-12-31 11:38:04.105010513  frame=  426 fps= 14 q=-1.0 size=N/A time=00:00:32.48 bitrate=N/A speed=1.09x    \r11:38:04.104 DBG [exec] run launch=5.389393231s\n","stream":"stdout","time":"2023-12-31T11:38:04.120395833Z"}
{"log":"2023-12-31 11:38:04.105668142  Output #0, rtsp, to 'rtsp://127.0.0.1:8554/59d9f18278623e17b5ffe7527c9c6681':\n","stream":"stdout","time":"2023-12-31T11:38:04.120433687Z"}
{"log":"2023-12-31 11:38:04.105750415    Metadata:\n","stream":"stdout","time":"2023-12-31T11:38:04.120466792Z"}
{"log":"2023-12-31 11:38:04.105860695      title           : Media Presentation\n","stream":"stdout","time":"2023-12-31T11:38:04.12048055Z"}
{"log":"2023-12-31 11:38:04.105969508      encoder         : Lavf59.27.100\n","stream":"stdout","time":"2023-12-31T11:38:04.120491935Z"}
{"log":"2023-12-31 11:38:04.106233509    Stream #0:0: Video: h264 (Main), yuvj420p(pc, progressive), 3200x1800 [SAR 1:1 DAR 16:9], q=2-31, 20 fps, 25 tbr, 90k tbn\n","stream":"stdout","time":"2023-12-31T11:38:04.120502271Z"}
{"log":"2023-12-31 11:38:04.106379688    Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s\n","stream":"stdout","time":"2023-12-31T11:38:04.120513725Z"}
{"log":"2023-12-31 11:38:04.106450647      Metadata:\n","stream":"stdout","time":"2023-12-31T11:38:04.120526436Z"}
{"log":"2023-12-31 11:38:04.106564279        encoder         : Lavc59.37.100 aac\n","stream":"stdout","time":"2023-12-31T11:38:04.120536354Z"}
{"log":"2023-12-31 11:38:07.853812617  192.168.x.45 - - [31/Dec/2023:11:38:07 +0000] \"GET /api/stats HTTP/1.1\" 200 4830 \"-\" \"HomeAssistant/2023.12.4 aiohttp/3.9.1 Python/3.11\" \"-\"\n","stream":"stdout","time":"2023-12-31T11:38:07.86213856Z"}
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{"log":"2023-12-31 11:38:17.968182846  192.168.x.45 - - [31/Dec/2023:11:38:17 +0000] \"GET /api/stats HTTP/1.1\" 200 4832 \"-\" \"HomeAssistant/2023.12.4 aiohttp/3.9.1 Python/3.11\" \"-\"\n","stream":"stdout","time":"2023-12-31T11:38:17.983026544Z"}

[BurningTheSky]

Just noticed it happened again and I still can't see an error that stands out

[jay-kub]

Try changing your output_args to:

record: preset-record-generic-audio-copy

That fixed the issue for me as well as another user -- #7995

[BurningTheSky]

Thanks, I'll give that a try. I'm getting a weird clicking on the auto at the moment too which is fun!

[jay-kub]

The preset-record-generic-audio-aac option is actually for scenarios where your source audio isn't AAC and therefore needs to be transcoded to AAC, and preset-record-generic-audio-copy is for scenarios where your source audio is AAC and the audio just needs to be copied.

So it's an easy mistake to make, and with it trying to transcode from AAC to AAC, it makes sense that there would be issues with the result.

Source: https://docs.frigate.video/configuration/ffmpeg_presets/#output-args-presets

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[BurningTheSky]

It's happening again, and it's only for this one camera. It's happened maybe 3 times in the last month? And now I have to keep checking the files to see when it happens!

I've tried trimming down the logs to when the blank screen started: https://pastebin.com/cQavVWmq

Current config for the relevant camera is:

go2rtc:
  log:
    exec: trace
  streams:
    Front:
     - "ffmpeg:rtsp://user:password@x.x.x.x:554//Streaming/Channels/101/#video=copy#audio=aac"
cameras:
  # <------- Event record ------->

  Front: # <------ Name the camera
    ffmpeg:
      inputs:
        - path: rtsp://127.0.0.1:8554/Front?video&audio=aac
          input_args: preset-rtsp-restream
          roles:
            - record
        - path: rtsp://127.0.0.1:8554/Front247?video
          input_args: preset-rtsp-restream
          roles:
            - detect
          hwaccel_args: preset-nvidia-h264
      output_args:
        record: preset-record-generic-audio-copy # was preset-record-generic-audio-aac
    detect:
      enabled: True # <---- disable detection until you have a working camera feed
      width: 640 # <---- update for your camera's resolution
      height: 360 # <---- update for your camera's resolution
      fps: 7
    objects:
      track:
        - person
        - bicycle
        - car
        - motorcycle
        - cat
        - dog
    record:
      enabled: True
      retain:
          days: 3
          mode: all
      events:
        pre_capture: 5
        post_capture: 5
        retain:
          default: 42
          mode: active_objects
    motion:
      mask:    
        - 595,0,640,0,640,87,619,72,588,46,549,23,497,0

Currently on 0.13.2-6476f8a running go2rtc 1.8.4.

FFPROBE OUTPUT while in error:

Stream 0:
Return Code: 0

Video:

Codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
Resolution: 3200x1800
FPS: 20/1

Audio:

Codec: AAC (Advanced Audio Coding)

Stream 1:
Return Code: 0

Video:

Codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
Resolution: 640x360
FPS: 8/1

[NickM-27]

maybe try with this instead

go2rtc:
  streams:
    Front:
      - "rtsp://user:password@192.168.x.x:554//Streaming/Channels/101/"
      - "ffmpeg:Front#audio=aac"

[BurningTheSky]

Thanks, I'll give that a try!

[BurningTheSky]

mse for live and playback in Firefox for events has stopped working since making that change. The recordings work in vlc and webrtc and jsmpeg will play

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[sgrossiP]

if anyone is here again. for me it is usually solved by restarting the camera. does not to seem a frigate issue

[Lallassu]

I had the same issue with 4x Unifi G3 bullet cameras. In the same Frigate setup I also have 4 TP-Link Vigi cameras and they work fine. I've noticed that at full hours it can suddenly stop recording and the recording is just black. Live feed works fine. So for example recording works fine 10:59 but 11:00 it just stops. Sometimes it seems to be stopping after an event has been recorded (stopped as in black recording). Also, the recorded event is sometimes black as well. Guess that it is related to the current recorded video(?).

Edit1: These cameras has worked for several years before, when not using go2rtc. So maybe it has something to do with that?

Edit2: Updated go2rtc latest version and we'll see if that helps.

[jay-kub]

@NickM-27 is there anything additional we can provide to help fix this issue? I've been running into it since about December and nothing I've done has resolved the issue long-term. I've considered making a new post but decided against it, as it feels like it would be an exact duplicate of this one.

Issue: recordings are missing the video stream (black screen with audio). Logs are clear and there's no camera issues afaik--restream displays video correctly. I am restreaming Frigate to Synology Surveillance Station (SSS), and the corresponding recordings in SSS have a clear video stream. Frigate does appear to have a valid video stream but it appears it is getting lost during the conversion to an event recording.

The workaround for now is a nightly cron job that restarts the frigate container, as the recordings typically don't start to fail until Frigate has been up for a couple days.

[NickM-27]

Frigate does appear to have a valid video stream but it appears it is getting lost during the conversion to an event recording.

frigate is only receiving audio from go2rtc, because when go2rtc reconnects to the camera the camera only sends audio first and the video track is not able to be added. From frigate's perspective there is nothing to be done here, the only option frigate would have is to restart the stream but that is what starts the problem in the first place.

You can just not restream the recording stream for frigate and instead have frigate connect to the camera directly.

[jay-kub]

Just to make sure I understand what you're saying--you're thinking it's a connectivity issue with the camera that then results in a missing video stream as the connection is being reset mid-recording?

[NickM-27]

all reports I have seen of this issue have been that after the recording stream is restarted due to a connection or other issue, the issue occurs.

[jay-kub]

Gotcha. I think I had two separate issues with similar symptoms. The first issue was solved by correcting my output_args (at least I think it was), but then a few months later I added a second connection to my camera from HA (to track doorbell presses) which then caused connectivity issues with Frigate resulting in missing video streams again.

Do you think passing events for doorbell presses to HA/MQTT would be something you guys would consider? I was thinking of making an FR but I'm guessing that's something you have already thought about. I searched the issues though and didn't see anything.