Choppy/Skipping playback of events

Forum for questions and support relating to the 1.34.x releases only.
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GivingItMyBest
Posts: 13
Joined: Sat Dec 23, 2017 9:43 am

Choppy/Skipping playback of events

Post by GivingItMyBest »

I am just standing up a new zoneminder instance and currently have one Hikvision dome camera connected. It has a sub-stream which triggers the main channel. When playing back the main channel's events, the video is very choppy, the progress bar stops then jumps, and the videos are choppy as well. Often I'm left with a translucent image of the person/trigger moving. What could be causing this and/or what can I do to resolve it? The sub channel, which is lower resolution, does not have this issue.

ZM setup:
Ubuntu 20.04
ZM 1.34
Dual 2.6ghz xeon server w/ 24gb ram

Camera:
Hikvision dome 6mp
RTSP protocol
RPT/RTSP method
2699 x 1520 capture resolution
Deinterlacing off
RTSP Response Media URL checked
GivingItMyBest
Posts: 13
Joined: Sat Dec 23, 2017 9:43 am

Re: Choppy/Skipping playback of events

Post by GivingItMyBest »

Does anyone have any ideas or is there any other information needed?
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burger
Posts: 390
Joined: Mon May 11, 2020 4:32 pm

Re: Choppy/Skipping playback of events

Post by burger »

you can try lowering fps on camera. 2.5K res at 30FPS is nothing to sneeze at.

if camera blue screens out periodically, try udp instead of tcp.

See also viewtopic.php?f=9&t=27537
if you need high res (like 4K cameras)
fastest way to test streams:
ffmpeg -i rtsp://<user>:<pass>@<ipaddress>:554/path ./output.mp4 (if terminal only)
ffplay rtsp://<user>:<pass>@<ipaddress>:554/path (gui)
find paths on ispydb or in zm hcl

If you are new to security software, read:
https://wiki.zoneminder.com/Dummies_Guide
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iconnor
Posts: 2904
Joined: Fri Oct 29, 2010 1:43 am
Location: Toronto
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Re: Choppy/Skipping playback of events

Post by iconnor »

Also try the ffmpeg monitor type instead of the old Remote.
GivingItMyBest
Posts: 13
Joined: Sat Dec 23, 2017 9:43 am

Re: Choppy/Skipping playback of events

Post by GivingItMyBest »

iconnor wrote: Thu Jun 25, 2020 6:07 pm Also try the ffmpeg monitor type instead of the old Remote.
I tried this, but I must be doing something wrong. It no longer connects to the camera with this change. I tried to export the logs, but got a 500 error on export, so I've attached a copy-paste of the log. Apologies if this is a simple matter; I'm still pretty green when it comes to cameras and servers.
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Log Copy.txt
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