Record format

Support and queries relating to all previous versions of ZoneMinder
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DarkSSJ
Posts: 8
Joined: Thu Dec 23, 2004 9:12 pm
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Record format

Post by DarkSSJ »

Is it possible to record in a video format (maybe mpeg4)?
It's really boring to manage 40-50GB in jpeg format... :roll:
jameswilson
Posts: 5111
Joined: Wed Jun 08, 2005 8:07 pm
Location: Midlands UK

Post by jameswilson »

there are others on here that are looking at making a script to create an mpeg4 video and then delete the jpegs. Mpeg is good for lots of things but not so great for serious security as it is technically not admissable in court as evidence as its conditional refresh based. So you still need jpegs im afraid, or you could wait for jpeg 2000 support
James Wilson

Disclaimer: The above is pure theory and may work on a good day with the wind behind it. etc etc.
http://www.securitywarehouse.co.uk
DarkSSJ
Posts: 8
Joined: Thu Dec 23, 2004 9:12 pm
Contact:

Post by DarkSSJ »

jameswilson wrote:as it is technically not admissable in court as evidence as its conditional refresh based.
I don't understand this: why single jpeg frames are admissable and mpeg video aren't? Can't I convert mpeg to image frames?
jameswilson wrote:or you could wait for jpeg 2000 support
How could this help?
jameswilson
Posts: 5111
Joined: Wed Jun 08, 2005 8:07 pm
Location: Midlands UK

Post by jameswilson »

well without getting into a battle of different recording formats only full frame images are admisable. mpeg takes one frame then just records the changes in subsequent frames, thus keeping storage space down, but an individual fRame cannot be used on its own. making a jpeg from mpeg is a modified image so again cannot be used. jpeg2000 gives much greater image quality for a given size
James Wilson

Disclaimer: The above is pure theory and may work on a good day with the wind behind it. etc etc.
http://www.securitywarehouse.co.uk
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