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Bitrate reported on server dashboard can't possible be accurate?


maxxoverclocker

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maxxoverclocker

Hi!

 

After the update from 4.3.0.30 to 4.3.1, I've noticed that in the server dashboard the bitrates for transcoded media are wildly inaccurate, sometimes 5-10x higher than the actual source media:

 

5e1e0ad3b27ee_Capture2.png

 

The source media for this was 7,867 kbps as reported on the media detail page:

  • Title1080p H264
  • CodecH264
  • AVCYes
  • ProfileHigh
  • Level41
  • Bitrate7,867 kbps
  • Color spacebt709
  • Bit depth8 bit
  • Pixel formatyuv420p
  • Ref frames1
  • NAL4

I've attached the logs for the above.

 

I've also seen it report absurdly low bitrates, like 45 Kbps when they're actually streaming at 3Mbps.

embyserver-1.txt

Edited by maxxoverclocker
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No that's actually not the same at all. In this case the app requested 2 mbps but the actual result is being reported as something very different.

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maxxoverclocker

No that's actually not the same at all. In this case the app requested 2 mbps but the actual result is being reported as something very different.

Thanks Luke! Very strange.

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Happy2Play

No that's actually not the same at all. In this case the app requested 2 mbps but the actual result is being reported as something very different.

I guess I am confused as a 2Mb limit and 2Mb transcode, exact same logging as other topic.  UI showing VTT rate about 76Mbps.

Playbackinfo
&VideoBitrate=1616000&AudioBitrate=384000

File Bitrate
"Bitrate":7867582

Transcode
-maxrate 1616000 -bufsize 3232000

22:10:21.235 SegmentComplete=video:1 Index=711 Start=1488.069917 End=1490.071917 Duration=2.002000 offset_pts=0 start_pts=1488069917 Frames=47 filename=0fbcd8816bbe289656fea5a78ddb14aa_s15711.vtt
22:10:21.235 frame=20248 fps= 24 q=-1.0 Lq=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 q=-1.0 size=13932613kB time=00:24:50.11 bitrate=76595.4kbits/s throttle=off speed= 1.8x
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seanbuff

No that's actually not the same at all. In this case the app requested 2 mbps but the actual result is being reported as something very different.

 

So isn't that exactly the same as in my case? My clients had a limit of 6Mbps, and the logs indicate that they were indeed pulling 6Mbps - yet the dashboard was reporting something completely different.

 

@@softworkz summed up the issue perfectly. Obviously caused by a recent update, as the OP originally indicated.

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  • 4 weeks later...
  • 4 weeks later...
maxxoverclocker

The output bandwidth has been corrected for the upcoming 4.4 release. Thanks.

Thanks again Luke! This is good to hear because I've noticed that even though I have a per-stream bandwidth limit of 8Mbit/s, some clients are pulling 25Mbit/s (source bitrate) even though the clients are external. Completely depends on the source content though. I'll wait for the 4.4 stable release and see if that does the trick!

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