ZoneMinder Forums

Hi there. I want to use zoneminder to grab a stream (MJPEG or MPEG4) from WAN, WXGA @ 1-3ps and make it availible to other viewing devices and a recorder in the LAN. Does zm need to decompress the stream and compress it again to make it availible? Or can the stream be retransmitted without being ...

Seems to be the shared memory problem, just look at the FAQ.

or give the output of:

$cat /proc/sys/kernel/shmall

$cat /proc/sys/kernel/shmmax

24 IP cams is a big load for the server. Just try around. I suggest to use MJPEG - it gives better image quality and lower frame rate. Wit the turbo-lib you should be able to lower the load. If it is still to high try to lower the framerate. Of course check some other system parameters, RAM usage ...

The intraframe setting is only for MPEG4. It sends an full image every (4Seconds or 3Seconds and so on). Beetween the intraframes MPEG4 sends only the difference from the last frame. To lower the load you can also try the jpeg-turbo libs. It needs some hacking around and compiling, you will find it ...

If you are using 10fps at VGA resolution, hmmm, just try it. lower to 512kb. if you see the image quality is too low you should go one step up. also you can lower the framerate if you not need 10fps. i am driving an remote cam via internet line with 128kbps only, using vga resolution and MJPEG. The ...

I think the problem is ZM have to decompress the streams from the IP cams even if you do only monitor-mode. If you like to monitor more IP cams a simple and fast solution should be a simple html page like the montage view from zoneminder and then replace the source address of each stream direct to ...

Does not compile here at the x64 machine.

Tell us more, which system, which ZM version, the config of the cam in ZM and do other cams on you zoneminder shows fps?

VitrualBox or VMWare should work, i don't think moba does it.

If you installed zoneminder via apt-get then there is nothing more to do. The installation should be complete and it should work out of the box.

No, at this time you can load it only once. I will work on it and try to solve the problem.

Just my 10 cent.

1. install x264
./configure --enable-pic

2. PERL
install Sys::Mmap

3. zoneminder at ./configure add
--enable_mmap=yes
to use /dev/shm

4. instead of adding to rc.local use:
/usr/sbin/update-rc.d -f zm defaults

Thx,

i have already added a solution to deinterlace the images from interlaced cam's and posted in this thread: http://www.zoneminder.com/forums/viewtopic.php?t=15501

Hi there. Preliminary i have solved the interlacing issue for me. Of course an small increase of the CPU load is happened. The mencoder takes about 2% of a dualcore@2.93GHz for a 768x576x24 source at 4fps. I used: - zm 1.24.2 from svn - ubuntu server 9.10 x64 - mencoder - avld 0.1.4 with patch for ...

Try restarting zoneminder after configuring the stream. 1.24.2 should use /dev/shm/ for shared memory.