ZoneMinder Forums

Hi,

I've got an axis ip-cam that I can set the maximum fps - say 10 fps.

Now monitoring the cam or recording it is perfectly fine.

But as soon as I want to monitor or record at a lower frame rate
- say at 2 fps I get a problem of skipped frames.

Given frames
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
I'd expect to see/record frames 0, then 5, then 10, then 15 ecc...

Instead I get 0 1 2 3 then there is a skip to 20 21 22 23 then
40 41 42 43 etc... So I see a bumpy motion instead of a linear
motion.

This happens with 1.22.3 AND 1.23.1.

I've tried to play around with various settings, such as misc->frame skip
and various buffer options without results.

What am I doing wrong?

Cheers
Paolo

The max FPS setting work well for capture cards.
They dont work so well for IP Cams, you have to set the IP Cam to tell it what FPS to send.

If your using mjpeg feeds you MUST not throttle at the server end only the cam end. If you want to use the server to throttle then you MUST use jpeg

YES now it's working.
Thanks a lot everybody for the quicly reply!

You don't think that it is unlogicall?

Let me know your impression, please, Paolo.

ZM has no way to set or limit the stream the camera passes, some cams you can set this through the url string, others do not. So while it seems not so practical, yes it is logical.

jameswilson wrote:If your using mjpeg feeds you MUST not throttle at the server end only the cam end. If you want to use the server to throttle then you MUST use jpeg

This is a really valuable piece of information thanks. I added it into the WiKi.