ZoneMinder Forums

Posted: **Fri Jun 26, 2009 1:36 pm**

Hello everyone,

I am testing out an Axis Q1755 camera at 1280x720 720p mjpeg, using on-camera motion detection and sending triggers to ZM via tcp and the zmtrigger.pl inet socket. The camera itself is set to limit the fps to 25, which I have verified by overlaying the live image with the fps and viewing through the camera's interface.

My monitor is set nodect and remote / http / simple using x.x.x.x. as the host and /axis-cgi/mjpg/video.cgi has the host path. Viewing the logs, I see:

Code: Select all

root@zm-test:/lib# grep 'Capturing at' !$
grep 'Capturing at' /var/log/messages
Jun 26 08:52:56 zm-test zmc_m2[7556]: INF [Monitor-2: 1000 - Capturing at 8.55 fps]
Jun 26 08:54:31 zm-test zmc_m2[7556]: INF [Monitor-2: 2000 - Capturing at 10.53 fps]
Jun 26 08:56:04 zm-test zmc_m2[7556]: INF [Monitor-2: 3000 - Capturing at 10.75 fps]
Jun 26 08:57:37 zm-test zmc_m2[7556]: INF [Monitor-2: 4000 - Capturing at 10.75 fps]
Jun 26 09:00:17 zm-test zmc_m2[7816]: INF [Monitor-2: 1000 - Capturing at 9.52 fps]
Jun 26 09:03:23 zm-test zmc_m2[8159]: INF [Monitor-2: 1000 - Capturing at 9.26 fps]
Jun 26 09:05:16 zm-test zmc_m2[8159]: INF [Monitor-2: 2000 - Capturing at 8.85 fps]
Jun 26 09:06:54 zm-test zmc_m2[8159]: INF [Monitor-2: 3000 - Capturing at 10.20 fps]
Jun 26 09:08:35 zm-test zmc_m2[8159]: INF [Monitor-2: 4000 - Capturing at 9.90 fps]
Jun 26 09:10:18 zm-test zmc_m2[8159]: INF [Monitor-2: 5000 - Capturing at 9.71 fps]
Jun 26 09:11:54 zm-test zmc_m2[8159]: INF [Monitor-2: 6000 - Capturing at 10.42 fps]
Jun 26 09:13:35 zm-test zmc_m2[8159]: INF [Monitor-2: 7000 - Capturing at 9.90 fps]
Jun 26 09:15:29 zm-test zmc_m2[8159]: INF [Monitor-2: 8000 - Capturing at 8.77 fps]
Jun 26 09:17:06 zm-test zmc_m2[8159]: INF [Monitor-2: 9000 - Capturing at 10.31 fps]
Jun 26 09:18:41 zm-test zmc_m2[8159]: INF [Monitor-2: 10000 - Capturing at 10.53 fps]
Jun 26 09:20:16 zm-test zmc_m2[8159]: INF [Monitor-2: 11000 - Capturing at 10.53 fps]
Jun 26 09:22:00 zm-test zmc_m2[8159]: INF [Monitor-2: 12000 - Capturing at 9.62 fps]
Jun 26 09:23:44 zm-test zmc_m2[8159]: INF [Monitor-2: 13000 - Capturing at 9.62 fps]
Jun 26 09:25:41 zm-test zmc_m2[8159]: INF [Monitor-2: 14000 - Capturing at 8.55 fps]
Jun 26 09:27:55 zm-test zmc_m2[8159]: INF [Monitor-2: 15000 - Capturing at 7.46 fps]
Jun 26 09:30:31 zm-test zmc_m2[8159]: INF [Monitor-2: 16000 - Capturing at 6.41 fps]
Jun 26 09:33:11 zm-test zmc_m2[8159]: INF [Monitor-2: 17000 - Capturing at 6.25 fps]
root@zm-test:/lib#

What could be the cause of this? I have sufficient hardware.

Posted: **Fri Jun 26, 2009 4:34 pm**

Do you have sufficient network bandwidth? If you're using 1.24, try it as mpeg and see if that's any better or worse.

Posted: **Mon Jun 29, 2009 1:39 pm**

Thanks for the reply!
I believe that my network bandwidth is sufficient, as the camera is on a 100mb network and the server is on a virtual machine on a1000mb network, both connected to the same gigabit switch. Also, during after-hours, when network utilization is low, FPS do not improve.

I am indeed using 1.24(.2) What do you mean by 'try it as mpeg'?

Posted: **Mon Jun 29, 2009 2:53 pm**

Your axis should support an mpeg stream out of the box unless you disabled it. Try setting up a new camera in ZM with the axis mpeg presets instead of the mjpeg presets.

Posted: **Mon Jun 29, 2009 4:46 pm**

I thought I was using the mpeg stream? http://192.168.0.104/axis-cgi/mjpg/vide ... rofile=zm2
Selecting the "Axis IP, 640x480, mpjpeg" preset returns a very similar subpath to what I am currently using, the only difference being the querystring.

The others use RTSP and a different path, /axis-media/media.amp, which was still giving me the same FPS (tested with RTSP previously)

Am I missing something obvious?

Posted: **Mon Jun 29, 2009 5:57 pm**

Go further down the menu, it's not entirely in alphabetical order. They're listed as Axis MPEG4 unicast/multicast/etc.

Posted: **Mon Jun 29, 2009 7:02 pm**

Ah, that - so the mpeg stream can only be access using rtsp?
Also, for this camera (a Q1755), the stream has changed to /axis-media/media.amp

Posted: **Tue Jul 07, 2009 7:12 am**

While I don't know if it will be overly helpful, you might give a shot at using something like ntop to see what the network is doing. Not really sure how helpful it will be though.

ZoneMinder Forums

Low FPS on Axis camera

Low FPS on Axis camera