newbie: exported video pixely and coarse

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neuronetv
Posts: 70
Joined: Mon Dec 17, 2012 10:01 pm

newbie: exported video pixely and coarse

Post by neuronetv » Tue Dec 25, 2012 12:41 pm

centos 6.3 server running zm 1.25
I can export an event to avi file but the resulting video is coarse and pixelated, lacking the sharpness and definition of the original frames, it often makes faces unrecognisable. I can get round this by exporting the event at 3 x normal size and them reducing the avi file again but this seems a strange way to get a decent video from an event. Is there some setting I can adjust so the exported avi is as good as the original event?

PacoLM
Posts: 970
Joined: Wed Dec 02, 2009 9:55 pm
Location: Spain

Re: newbie: exported video pixely and coarse

Post by PacoLM » Tue Dec 25, 2012 10:19 pm

Try this settings in Configuration::Images:FFMPEG_OUTPUT_OPTIONS:

-r 25 -qscale 1

Hope it helps,

PacoLM

mini-ITX system (4 IPCams - Ubuntu20.04 - ZM1.34.15)
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neuronetv
Posts: 70
Joined: Mon Dec 17, 2012 10:01 pm

Re: newbie: exported video pixely and coarse

Post by neuronetv » Thu Dec 27, 2012 3:35 pm

thanks for your response PacoLM, that -r 25 -qscale 1 did the trick. Exported videos are now as good as the original.

chriswiggins
Posts: 18
Joined: Fri Sep 28, 2012 2:52 am

Re: newbie: exported video pixely and coarse

Post by chriswiggins » Sat Dec 29, 2012 2:35 am

The other alternative is to add the following to the output options: -b 20000000 which makes the bitrate of the output video 2mbit

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