Camera Feedrate Jump

[ameterasu]

Hey all, I'm running 1.36.35 and I just figured out that the feedrate of cameras are jumping 3-4x inbetween fps updates. Example camera was feeding 150kB/s, 550kB/s, 150kB/s , 550kB/s, 540kB/s, 150kB/s.

What can i look into to diagnose this? I tried various settings in Hikvision camera settings nothing worked. I also see that when i change the resolution of the camera this rate is not chaging.

I tried to attach as much information as possible.

New Project.jpg (56.15 KiB) Viewed 1824 times

Thanks in advance.

[dougmccrary]

I'm not sure there's a problem here.
That transmission rate will vary depending on the compression and changes in the camera field.

However, I think it might be better to set the I frame interval to a multiple of the frame rate, say 16.
Also, it's said that it's best to leave the colorspace at 32 as the decoding is optimized for 32.

[ameterasu]

Thanks for the suggestions, i will update iframes and colorspaces on your suggestion.

The image coming from the camera was static. These are indoor cameras looking at a storage area.

I find it weird to have same static image delivered at 150kB/s for 10 seconds and 550kB/s for 20 seconds and so on.

[dougmccrary]

image delivered at 150kB/s for 10 seconds and 550kB/s for 20 seconds

What is reporting that?

[Andyrh]

What is the keyframe interval? The key frame is a complete picture, the following frames are changes to the key frame. In a static image the key frame will be much larger than the following frames.
I have my key frame interval set to 1 sec.

[ameterasu]

image delivered at 150kB/s for 10 seconds and 550kB/s for 20 seconds

What is reporting that?

Zoneminder Gui under Function. I keep refreshing the page.

chrome_wss1Dl3sGA.png (1.58 KiB) Viewed 1673 times

What is the keyframe interval? The key frame is a complete picture, the following frames are changes to the key frame. In a static image the key frame will be much larger than the following frames.
I have my key frame interval set to 1 sec.

It was 15 and the cameras were set to 8fps at the device. Too frequent i think compared to what i see.