ZoneMinder Forums

How do I detect if a camera is working (not blue)?

Thank you.

Does anyone know how to pipe images to a /dev/video device?

I set up vloopback but I do not know how to pipe to the device.

http://www.lavrsen.dk/foswiki/bin/view/ ... backDevice

thanks.

Changed to Ubuntu 8.04 32-bit and increased shared memory even more and there are only a few lines when there is motion. Thanks! http://www.zoneminder.com/wiki/index.php/FAQ#What_does_a_.27Can.27t_shmget:_Invalid_argument.27_error_in_my_logs_mean.3F_and_my_cameras_won.27t_display_video_at_higher ...

okay I will test out some other cameras from bluecherry and post the results.

Changed the source to video4linux 2 NSTC M and it helped.

I can send a video if you would like to see.

yeah. When there is movement (car, person, tree) the image shows horizontal black lines in the shape of the object.

Does anyone have recommendations for things to try to remove the black lines (around 1px height, 400px width) across images?

We are using Ubuntu 8 64-bit with two PV-183 16 cards.

zoneminder 1.24.1
Ubuntu 8.04.2 2.6.24-19-server

640x480 ~16fps

Thanks.

/etc/modprobe.conf options bttv card=98,98,98,98,98,98,98,98 dmesg | grep bttv bttv: driver version 0.9.16 loaded bttv: using 8 buffers with 2080k (520 pages) each for capture bttv: Bt8xx card found (0). bttv0: Bt878 (rev 17) at 0000:05:04.0, irq: 58, latency: 64, mmio: 0xfaefe000 bttv0: subsystem ...

Does anyone know how I can query the cameras? I used to be able to get PAL in the output of zmu. for i in {1..32}; do zmu -m $i -q -v; done Monitor 1(Monitor-0-00-0) Id : 1 Name : Monitor-0-00-0 Type : Local Device : /dev/video0 Channel : 0 Standard : 45056 Width : 320 Height : 240 Palette ...

thank you for the reply

Does anyone have any recommendations on a 16-channel PCI-Express video capture card? It is going in a linux server and cost is not an issue.

I checked http://www.zoneminder.com/wiki/index.ph ... d_hardware and more recommendations would help.

Thanks!