strange datarate on record

[jay23]

Hi,
i have 3 identical Cameras (Reolink RLC-520).
Same config.
Same config on ZM 1.32.3 (debian Buster).
The first is locked at 10fps, the second at 25 and the third at 8.
Where comes the difference in kB/s from?

zm1.png (12.57 KiB) Viewed 3350 times

Why does the first Cam produces twice as much at 10fps, as the 2nd on 12fps?
Tia
Jay

[Magic919]

How does this compare with the camera output? What are the actual rates?

[jay23]

Where should i look for it?
In the records?
There is the rate stated by the picture.

[Magic919]

Measure it. Make a 10 minute recording from each camera, check file size, calculate bit rate.

[jay23]

Ah, ok. You mean bitrates, not framerates.
I have set a variable bitrate with maximum 8k at all cams.
Is ZM able to influence the bitrates?

[Magic919]

You asked about bit rates.

And, no.

[Acewiza]

Sooooo, the "question" is: how are frame rate and bitrate related to Zoneminder's ability to manage those variables?

If anybody thinks calculating file sizes and jumping through math hoops is a way to operate a computer system in 2021, they have another thing coming...

[jay23]

You are right.
The bitrate ist between 7 and 10k on 1
and between 2 and 5k on 2 and 3.
But - why? They are all configed to 8k Max.

What ist the improvement between 5 and 10k bitrate?

Tia
jay

[Magic919]

I don't think I understand the question.

[dougmccrary]

If you switch the settings to another one of the three cameras, is the result similar?
Also, are the cams seeing similar scenes in terms of motion?

[jay23]

I don't think I understand the question.

Is there a better picture with 10mbit?
The fps and resolution is the same.

[jay23]

If you switch the settings to another one of the three cameras, is the result similar?
Also, are the cams seeing similar scenes in terms of motion?

Cam 1 and Cam 2 sees the same Scene from different Directions.

[dougmccrary]

OK. So if you reverse the setting of cam1 and 2, does FPS and datarate follow the same pattern? I'm wondering if they are really identical.