static in images

Forum for questions and support relating to the 1.28.x releases only.
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darkpaw
Posts: 164
Joined: Thu Apr 26, 2007 2:35 am

static in images

Post by darkpaw » Thu Nov 05, 2015 3:22 am

Finally got my 1.28.x system up and running, and I'm seeing something unusual that I didn't see before. I get a lot of "static" in the images, as in horizontal lines, usually randomly placed around the area where there is motion (using modect to trigger capture). I've heard of this before, but can't recall what causes it. The only thing that changed in my new setup for the actual capture side of it is I had to toss my dead Kodicom 8800 card and replaced it with a 4400R (which actually seems to work great). Same chipset, just 4 channels instead of 8 at a time (16 channels total), and you can assign any channel to any of the 4 chips, which is nice.

Any ideas would be appreciated.

darkpaw
Posts: 164
Joined: Thu Apr 26, 2007 2:35 am

Re: static in images

Post by darkpaw » Thu Nov 05, 2015 3:25 am

The problem seems similar to this thread:
viewtopic.php?f=32&t=23440&p=89327&hilit=static#p89327

It appears to be a known problem. That's very unfortunate. Has any solution to this been found yet, other than having to go to IP encoders?

ET328
Posts: 7
Joined: Sat Aug 27, 2011 12:34 pm

Re: static in images

Post by ET328 » Thu Nov 05, 2015 1:00 pm

I had the same (or very similar) problem with SAA7134 chipset 4 channel analog card. Switching capture palette to YUYV fixed it. Not the optimum solution for performance, but seems to work fine.

darkpaw
Posts: 164
Joined: Thu Apr 26, 2007 2:35 am

Re: static in images

Post by darkpaw » Fri Nov 06, 2015 12:18 am

Your're brilliant!! Thank you. This fixed it completely. :)

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knight-of-ni
Posts: 2341
Joined: Thu Oct 18, 2007 1:55 pm
Location: Shiloh, IL

Re: static in images

Post by knight-of-ni » Fri Nov 06, 2015 10:36 pm

Very nice. I'll make sure and let others know in the future.
Visit my blog for ZoneMinder related projects using the Raspberry Pi, Orange Pi, Odroid, and the ESP8266
All of these can be found at https://zoneminder.blogspot.com/

darkpaw
Posts: 164
Joined: Thu Apr 26, 2007 2:35 am

Re: static in images

Post by darkpaw » Sat Nov 07, 2015 3:11 am

This would be a good Wiki candidate.

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knight-of-ni
Posts: 2341
Joined: Thu Oct 18, 2007 1:55 pm
Location: Shiloh, IL

Re: static in images

Post by knight-of-ni » Sat Nov 07, 2015 3:36 pm

The zoneminder wiki is maintained by the community. Feel free to contribute.
Visit my blog for ZoneMinder related projects using the Raspberry Pi, Orange Pi, Odroid, and the ESP8266
All of these can be found at https://zoneminder.blogspot.com/

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