ZoneMinder Forums

I have 3 stks. The more you plug the less stably they work. One problem is corrupted packets. ffmpeg says: "expected n bytes, got m bytes" and dies.
Another problem is it sometimes cannot allocate buffers and start capture. Have to reset the usb device.

It's hard to say what causes the error. There're some general hints: * plug your chinese DVRs to different USB controllers: use the command: `lsusb -t` to ensure that. If you fail, you can't use 2 DVRs simultaneously. * watch `dmesg --follow` and system log (`sudo journalctl --follow` or `tail -F ...

maybe delete the line:

run `dmesg --follow` in a separate terminal . Sometimes the driver goes nuts. Then replug.

Create these 2 files: /etc/udev/rules.d/85-my_stk1160_pal.rules ATTR{name}=="stk1160", GOTO="my_v4l2_pal_goodname" ATTR{name}=="usbtv", GOTO="my_v4l2_pal_goodname" GOTO="my_v4l2_pal_end" LABEL="my_v4l2_pal_goodname" ACTION=="add", SUBSYSTEM=="video4linux", RUN+="/usr/local/bin/my_stk1160_pal.sh ...

Does ZM store the latest frame anywhere? I know the location is /var/cache/zoneminder in recorder mode, but what about modect mode?

Nevermind, found `zmu -qi`

Hi. How can I automatically adjust a v4l2 device brightness/contrast based on caprured frame properties? I see manual controls in the monitor settings, but does ZM do anything automatically?

I've read that it could be supported at a driver level, but my driver doesn't seem to have it.

Managed to split one capture device using ffmpeg. ZM can't read uncompressed video from it, so instead I made ffmpeg output the split video to several v4l2loopback devices. There's a separate monitor in ZM for each virtual device. Synchronizing source switching and splitting in ffmpeg with system ...

Hi. ZM cannot start capture with Device Format = PAL, unless I explicitly set it with v4l2-ctl. Zoneminder: 1.28.1 Device: EasyCAP 002 (USB) OS: Arch Linux After plugging: $ v4l2-ctl -d /dev/video0 -S Video Standard = 0x00001000 NTSC-M picture is black and white in xawtv. Working black and white ...

Hi. I want to try with USB DVR EasyCAP DC60. It has 4 inputs, but only one can be used at time. Can I tell zoneminder to switch active camera every n seconds (by opening a different /dev/videoN file or by running a shell command)? If so, how will motion detection behave when input image suddenly ...

Hi. Can't find any USB device in http://www.zoneminder.com/wiki/index.php/Hardware_Compatibility_Lis Can't find any success story with zoneminder and USB Want to convert an old laptop into a recorder. * order some $8 cameras (wired, analogue) * order an $10 four channel USB DVR (found one, drivers ...