FPS Not right?

jayman · Post by **jayman** » Fri Apr 09, 2010 9:00 pm

I just installed ZM today with a Pico2000 card. From what I read it should give me 5fps per port. Right now ZM is only showing 1.27 per port with all 4 in use. I have a 2nd card which 1 port is in use and it's only showing 5.5FPS.

Is there something I need to adjust to at least get it upto 5fps.

whatboy · Post by **whatboy** » Fri Apr 09, 2010 9:09 pm

From what I read it should give me 5fps per port. Right now ZM is only showing 1.27 per port with all 4 in use

Where did you read that??? in a seller/maker pamflet??? yeah right... 1.27 is quite right... when I has a one chip 4 channels, I only used 2 channels per card, installed 2 cards so I had 4 cameras @ 4.5fps...

I have a 2nd card which 1 port is in use and it's only showing 5.5FPS.

Now there you have a problem... it should be 30fps... maybe you're value is too high on OPTIONS -> CONFIG -> CAPTURES_PER_FRAME, what value do you have there???

kingofkya · Post by **kingofkya** » Sat Apr 10, 2010 1:45 am

I agree what your getting about right. Switching takes a lot of time.basicly it about a exponentially 1/3 of fps loss everytime you add a cam so.
1 cam 30FPS
2 cams 10fps each
3cams 3fps each
4cams 1fps each

jayman · Post by **jayman** » Sat Apr 10, 2010 3:05 pm

whatboy wrote:
From what I read it should give me 5fps per port. Right now ZM is only showing 1.27 per port with all 4 in use
Where did you read that??? in a seller/maker pamflet??? yeah right... 1.27 is quite right... when I has a one chip 4 channels, I only used 2 channels per card, installed 2 cards so I had 4 cameras @ 4.5fps...

I have a 2nd card which 1 port is in use and it's only showing 5.5FPS.
Now there you have a problem... it should be 30fps... maybe you're value is too high on OPTIONS -> CONFIG -> CAPTURES_PER_FRAME, what value do you have there???

I have 2 in there as the option.

These cards were in our old DVR from Chubb Security with the Netvision software. When running them in windows with that software it was putting out alot more then 1.27fps. For both displaying and recording video.

Why can windows do it and linux not do it?

jayman · Post by **jayman** » Sat Apr 10, 2010 3:24 pm

For the poster who asked where I seen that each should get at least 5fps

http://www.camsecure.co.uk/Zoneminder.html which is listed in the shop link at the top.

First card on the page is the exact same one I have.
This means that if you are using all 4 inputs you will have a maximum of 6
frames per second per camera which is often adequate for many applications.

kingofkya · Post by **kingofkya** » Sun Apr 11, 2010 5:19 am

Honestly thats imposable its a hard where limitation.

also yes technical you can get 6fps but they will be interlaced with the previous camera. turn of v4l_multibuffer to see what I mean.

Now what it could have been doing is showing you a live feed for 3 seconds at 5 fps or more and then moving the the next one so it appeared to be capturing faster. Rather that what zm does which is switch between every frame.