[Support]: Recorded videoclip sometimes have duration of hours with stuck frames for a lot of minutes

[StefanoGiu]

Describe the problem you are having

Recorded videoclip sometimes have duration of hours even if the real event is few minutes. There are stuck frames for a lot of minutes (I see the timer on the camera image blocked) and then the video continues to play. The entire video lenght is even 2 or 3 hours... How can I fix it?

I tested both the streams via VLC:

• http://XXXXX:5000/vod/event/YYYYYY/index-v1-a1.m3u8
• http://XXXXX:5000/api/frigate/notifications/YYYYYY/clip.mp4
  The first one is playable with no interruption/stuck and the duration is correct. The second one is broken, with blocked images and the duration is hours...

Can you help here? Maybe something wrong the way Frigate transforms the M3U8 into MP4 via FFMPEG?

Thanks

Version

SYSTEM 0.13.2-6476F8A

Frigate config file

go2rtc:
 streams:
    Cancello:
      - rtsp://XXXX:[email protected]:XXX/tcp/av0_0
      - "ffmpeg:Cancello#audio=aac" 


cameras:
   Cancello:
    ffmpeg:
      inputs:
        - path: rtsp://127.0.0.1:8554/Cancello
          input_args: preset-rtsp-restream
          roles:
            - detect
            - record
            - audio
      output_args:
        record: preset-record-generic-audio-aac
    motion:
      mask:
        - 0,0,670,0,666,22,0,265
        - 1075,292,943,314,908,284,791,191,713,145,624,194,613,244,633,276,805,409,772,498,996,689,1206,576
    objects:
      track:
        - person
        - dog
        - cat
        - bicycle
        - car
        - motorcycle
    detect:
      width: 1280
      height: 720
      fps: 15
    record:
      enabled: True
      retain:
        days: 7
        mode: motion

Relevant log output

-

FFprobe output from your camera

-

Frigate stats

No response

Operating system

Other Linux

Install method

Docker Compose

Coral version

USB

Network connection

Wired

Camera make and model

Any other information that may be helpful

No response

[NickM-27]

Frigate doesn't convert from m3u8 to MP4, all of the segments are directly combined as MP4 in the current UI.

The new UI will features a different way of doing things so I think this won't be an issue at that point.

This is usually due to cameras sending bad timestamps in the stream

[StefanoGiu]

How can I download a proper MP4 file then ? I would like to have a file that plays properly just like on the Frigate UI... ignoring the camera bad timestamps... is there a way?

[NickM-27]

Use the export feature instead of download button

[StefanoGiu]

I need a way from Home Assistant to send the mp4 event to telegram so I can see the video...

I'm currently using http://XXXX:5000/api/frigate/notifications/YYYY/clip.mp4 which comes broken... how shall I do it?

[NickM-27]

I am not able to reproduce the issue so there is not really a way to even start trying to fix it

Like I said I don't think this specific issue will be a problem in the next version of frigate when there are more options for notification clips

[StefanoGiu]

Is there a way I can pass you files related to this event so you can analyze them?

When is the next release and where can I read about the new notification clips ?

[StefanoGiu]

If I run FFMPEG on the M3U8 link I got this:

[hls @ 0000029e0fd11280] Skip ('#EXT-X-VERSION:3')
[hls @ 0000029e0fd11280] Opening 'http://XXXX:5000/vod/event/YYYY/seg-1-v1-a1.ts' for reading
[hls @ 0000029e0fd11280] Opening 'http://XXXX:5000/vod/event/YYYY/seg-2-v1-a1.ts' for reading
[hls @ 0000029e0fd11280] Could not find codec parameters for stream 0 (Video: h264 ([27][0][0][0] / 0x001B), none): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, hls, from 'http://XXXX:5000/vod/event/YYYY/index-v1-a1.m3u8':
  Duration: 00:00:25.25, start: 0.101000, bitrate: N/A
  Program 0
    Metadata:
      variant_bitrate : 0
  Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), none, 90k tbr, 90k tbn
    Metadata:
      variant_bitrate : 0
  Stream #0:1: Audio: aac (LC) ([15][0][0][0] / 0x000F), 8000 Hz, mono, fltp
    Metadata:
      variant_bitrate : 0
  Stream #0:2: Data: timed_id3 (ID3  / 0x20334449)
    Metadata:
      variant_bitrate : 0
Output #0, mp4, to 'Cancello_motion.mp4':
  Metadata:
    encoder         : Lavf59.26.100
  Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, mono, fltp
    Metadata:
      variant_bitrate : 0
Stream mapping:
  Stream #0:1 -> #0:0 (copy)
Press [q] to stop, [?] for help
size=     109kB time=00:00:31.73 bitrate=  28.1kbits/s speed=1.96e+03x
video:0kB audio:107kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.679065%

[StefanoGiu]

And the video is not copied... but If I open it with HTML or VLC, I can see the video.

[StefanoGiu]

Using ffmpeg -analyzeduration 20000000 -probesize 20000000 on the M3U8 link the video becomes visible.