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mrsfalcon  
#1 Posted : Wednesday, August 4, 2021 2:24:08 AM(UTC)
mrsfalcon

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Joined: 6/20/2020(UTC)
Posts: 10
United States

I have eight cameras streaming right now: some to youtube and some to another client. Four of my cameras errored over the weekend. According to youtube, they were still connected to the channel and had excellent connectivity, but weren't sending a stream. According to all four computers, they were sending a stream. Stopping the stream and restarting vMix solved the problem for two of them. Two more just randomly started sending data again. All of them had this message in the streaming logs, with a few changes in detail from file to file:
[flv @ 04b69e00] Failed to update header with correct duration.
[flv @ 04b69e00] Failed to update header with correct filesize.
frame=1228058 fps= 30 q=26.0 Lsize=20866968kB time=11:22:56.27 bitrate=4171.7kbits/s speed= 1x
video:20172258kB audio:638836kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.268480%
[aac @ 04b6ece0] Qavg: 58582.843

Can anyone provide advice or information on the problem? A quick google search turns up all kinds of ideas, but I'm not sure what is relevant and what is not.
IceStream  
#2 Posted : Wednesday, August 4, 2021 8:08:13 PM(UTC)
IceStream

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@ mrsfalcon

The "Failed to update header" error is common to all ended streams and is inconsequetial (a carry over function for "finishing" h264 encoded recordings, but since the stream is not a recodrded file there is nowhere to write that info to and the log "error" is just a notification of that).
There is likely another error listed in the stream log that might provide more details.
This vMix Knowledge base article might help:
https://www.vmix.com/kno...ng-ffmpeg-streaming-logs


Ice
mrsfalcon  
#3 Posted : Thursday, August 5, 2021 12:50:15 AM(UTC)
mrsfalcon

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Joined: 6/20/2020(UTC)
Posts: 10
United States

Thanks, Ice! On it now...
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