ZoneMinder Forums

From the debug log ... 10/20/21 14:07:25.296183 zmc_m18[206011].DB1-zm_ffmpeg_camera.cpp/621 [Received terminate in cb]

Not sure if this is meaningful ... running Ubuntu 20.04 standard build with ppa repository ffmpeg 4.2.4

I also upgraded to 1.36.9 from 1.36.7 and the behavior continues...fyi

Sorry for the delay here ... I'm seeing the zmc process crash on a couple of monitors This monitor is mocord with source rtsp via ffmpeg and video writer passthru See a portion of the debug (level 5) below... I can't find the root cause. Tried level 9 debug as well but nothing jumps out. 10/20/21 14 ...

Anyone else seeing erratic segment lengths? I recently upgraded to 1.34.7 on a system that was performing well. I have 20 cameras RTSP and some show erratic segment lengths ... one camera as an example typically 3000 frames ... then you'll see 65, 243, etc and then back to 3000. Logs not showing any ...

In my many attempts to get this work I tried the -s ... Once I got the full version correct I was able to downgrade to 1.36.5 apt install zoneminder=1.36.5-focal1 One follow-up question ... if you use the do_debian_package.sh with --snapshot=stable ... shouldn't that pull the 1.36 branch? As always ...

I tried that ... it acts like it wants to downgrade but does nothing ... apt install -s zoneminder=1.36.5-focal1 Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: libb64-0d libjwt-gnutls0 Suggested packages ...

I'm stuck ... I've been running 1.37 for a while as I needed the newer zmeventnotification enhancements. Now that those enhancements exist in 1.36 I'd like to run 1.36.x. At one point the do_debian_package.sh with --snapshot=stable script downgraded my install to 1.36.x After a couple of weeks .. I ...

Appreciate the input. I don't have a great perspective on the road .. as in no overhead perspective. Reading the best practices for detection indicates off center more than 30 degrees is not optimal. I only have a roadside perspective. I will experiment with fps and see if image quality is better ...

Reading documentation from OpenALPR and Phd papers seems to imply I should reduce my resolution and increase the FPS.

VBR with cap is recommended.

Trying reduced resolution 2304x1296 @ 30fps.

I'm looking for advice on the image quality front. I have a system that monitors a busy rural road corner and would like to do license plate detection, manual or automatic. In the manual case, the still image quality from a Amcrest 4k camera is barely enough. Remove storage size as a limitation ...

Missed the step to grant the www-data user access

sudo usermod -a -G plugdev www-data

Works! Huge time improvement over CPU based detection.

Thanks for the confirmation ...

I have a functional zm system 1.35.10 on Ubuntu 20.04.1. LTS Opencv 4.5 from source. Using Yolo4 and working very well. Wanted to try the Coral edgetpu so added a usb 3.1 card and the Google Coral edgetpu. I can run the classify_image test without issue but zm fails trying to open the device. From ...

I'm going to jump to Ubuntu 20.04 and redo my zoneminder install. Something is jacked in my filters.

I jumped to 1.35.9 but continue to see no function from the purge filter. I enabled debug and ran the exposed sql. The events diskspace column is null.

Is it the diskspace filter that is supposed to update this column?

Any help appreciated