Search found 441 matches

by Flash_
Thu Jun 09, 2011 7:11 am
Forum: ZoneMinder 1.24.x
Topic: Scalability, wireless quality
Replies: 1
Views: 1134

Re: Scalability, wireless quality

Those are megapixel cams so, if you choose to capture at full size, will use twice the bandwidth and data of 640x480. You also don't mention fps, so I'll assume 5fps. 2tb drive is good. Should allow for several weeks (do the math if you want accurate) Cpu should be ok. Don't know any quads too slow ...
by Flash_
Thu Jun 09, 2011 7:05 am
Forum: Hardware Queries
Topic: Creating network server
Replies: 4
Views: 2152

Re: Creating network server

Use soft links only with caution. Upgrading may remove them and kill your database;

Hard links better. See:

http://www.zoneminder.com/wiki/index.ph ... Hard_Drive
by Flash_
Fri Mar 25, 2011 6:42 am
Forum: ZoneMinder 1.24.x
Topic: Release 1.24.3 preview
Replies: 93
Views: 72393

Re: Release 1.24.3 preview

I don't have any spare servers to play with this, but
o FEATURE - Mapped memory (versus shared) is now the default.
Should cut down on at least half the support questions!

Thank you - great to see things moving again around here!
by Flash_
Tue Mar 22, 2011 6:54 am
Forum: Hardware Queries
Topic: Search video surveillance system with >20 cameras
Replies: 1
Views: 1198

Re: Search video surveillance system with >20 cameras

You don't need any special software for that, other than the computer running the display - with a quad head graphics card. If you're using ip cameras (and for a large site, analogues would be tricky to wire), you can simply create a local html file with <img> tags pointing to the mjpeg feeds. Firef...
by Flash_
Fri Mar 18, 2011 6:27 am
Forum: ZoneMinder 1.24.x
Topic: noise on footage
Replies: 2
Views: 1275

Re: noise on footage

What's the picture like at daytime?

It's not unknown for cameras to pixellate like this in times of darkness. I don't know whether it's camera or card, since I only use ip cameras, but certainly have a few of those which do exactly this.
by Flash_
Thu Mar 17, 2011 6:06 am
Forum: ZoneMinder 1.24.x
Topic: Mpeg y mp4
Replies: 2
Views: 1078

Re: Mpeg y mp4

It's core to how zm is coded and cannot easily be changed. The frames are decoded from the stream for analysis (in modect and others) and then saved out as jpgs. Because zm deals with multiple types in incoming stream - analogue, jpg, mjpeg, mpeg4 - it needs to convert to a common format to prevent ...
by Flash_
Sun Mar 13, 2011 8:45 am
Forum: ZoneMinder Previous Versions
Topic: Memory leak?
Replies: 7
Views: 4030

free shows memory, but read wikipedia as it's not as straight forward as windows. Linux will use all memory where it can, allocating as cache and buffers. If you want a nice graphical representation, install munin and wait a few hours for it to propogate. That makes it easy to show how memory is spl...
by Flash_
Tue Mar 08, 2011 7:03 am
Forum: Hardware Queries
Topic: CPU requirement (IP cam).
Replies: 6
Views: 2450

Have just googled for Bogomips for this cpu which seems to come in dual and quad core versions? Per core delivers bogomips : 3325.66 I'm going to take a guess and say the dual core version would be fine for the usage you require. If it struggles and there's still a couple of things you could do; ins...
by Flash_
Mon Mar 07, 2011 6:37 am
Forum: ZoneMinder Previous Versions
Topic: how to backup/restore database?
Replies: 4
Views: 6564

Actually, that is often a lot of faff since phpmyadmin won't accept large incoming files to restore. You can copy the dumpfile locally and import from there, but even then often times out. If you just want the setup and not the events, then phpmyadmin is handy since you just select all the tables ex...
by Flash_
Mon Feb 28, 2011 6:38 am
Forum: ZoneMinder Previous Versions
Topic: Export ZIP problem
Replies: 8
Views: 5129

Can you please stop re-opening two year old threads? The original poster has long since resolved their problem.
by Flash_
Fri Feb 25, 2011 2:34 pm
Forum: Hardware Compatibility List
Topic: "IP Camera" - Dealextreme cheapie. WORKS.
Replies: 6
Views: 6615

Update: Got a second one. Admin username and password now stuck onto camera body, but this one wasn't set on the camera!

Otherwise same as the first.

Has proved reliable with no outages at all over a month.
by Flash_
Sat Feb 19, 2011 7:58 am
Forum: ZoneMinder 1.24.x
Topic: Any way to control/limit MJPEG fps ?
Replies: 5
Views: 2857

If you're doing low fps, use the jpg. Some cameras (Axis) allow you to set the mjpeg fps by default or by url (&req_fps=5) but most of the cheaper bracket just throw as much as they can at you. That fps varies depending on the number of simultaneous viewers so isn't even slightly predictable. zm jus...
by Flash_
Wed Feb 16, 2011 6:53 am
Forum: ZoneMinder 1.24.x
Topic: SOLVED: grayscale working - color not working
Replies: 5
Views: 1990

Have you amended the shared memory as per the faq?

Colour images use a lot more space than B&W and this may need doing.

If not, check the logs and try and get more info,
by Flash_
Mon Feb 14, 2011 6:27 am
Forum: ZoneMinder 1.24.x
Topic: X seconds of motion to trigger alarm?
Replies: 1
Views: 1202

Yes, In your monitor's properties, select tab Buffers and change "Alarm frame count". The higher the number, the more frames must contain movement for the event to trigger. Number to suit you depends on your fps and layout so some experimentation required. For a full description search for that phra...
by Flash_
Mon Feb 14, 2011 6:25 am
Forum: ZoneMinder 1.24.x
Topic: How to pull a jpg from a website every xx seconds using ZM?
Replies: 11
Views: 3436

Have you followed the steps in the FAQ about allocating shared memory?

Your error message isn't identifying that in the normal way, but any colour 640x480 image will require this to be changed in every distro I've used, so change that before you go any further.