Upgrade from 1.23 to 1.36 changes the delay with zmtrigger.pl

Discussions related to the 1.36.x series of ZoneMinder
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akschu
Posts: 14
Joined: Wed Jul 27, 2005 5:30 pm

Upgrade from 1.23 to 1.36 changes the delay with zmtrigger.pl

Post by akschu »

It's hard to explain, but previously there seemed to be a slight delay between live and the video stream recording, so when I got a notification in zmtrigger.pl to create an event, the event tended to start just before the motion, and ended 3 seconds after the motion because of the on+3 in the trigger.

After the upgrade, it seems like the video stream is so much more realtime that by the time I get the trigger the motion is already in progress. Is there anything that would cause this between versions? Would it be possible to add a little of this delay back?

Thanks,
Matt
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Andyrh
Posts: 300
Joined: Sat Oct 28, 2017 3:55 am

Re: Upgrade from 1.23 to 1.36 changes the delay with zmtrigger.pl

Post by Andyrh »

Look under: Source|Buffers|Pre Event Frame Count for the camera in question.
This is the number of frames ZM stores for when there is an event. When there is an event it writes the buffer and the current frames until the event ends and the Post Event Image Count has been satisfied.
Andy
o||||o

Ubuntu 22.04
ZM 1.36.33
E5-1650-v4 Xeon
16 GB RAM
6 cameras -> 54 FPS modect
akschu
Posts: 14
Joined: Wed Jul 27, 2005 5:30 pm

Re: Upgrade from 1.23 to 1.36 changes the delay with zmtrigger.pl

Post by akschu »

Thanks! Really appreciated.
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