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Dâniel Fraga

Dahua HFW3200S artifacts (1080p)

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Does somebody here uses Dahua HFW3200S recording to FTP at 1080p? It seems this camera cannot do it without artifacts. I'm using the latest firmware (20130726). A workaround is to reduce the resolution, but I want to record it at 1080p (otherwise I wouldn't buy it .

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What type of artifacts? Are these lost frames causing ghosting and such?

 

My 3300C had a lot of trouble with ghosting/pixellization and dropouts, and 2 things got rid of the problems:

 

- Running lower bit rates

- Setting the i-frame the same as the frame rate (default was 2x the frame rate)

 

Before, I had to run at under 2048 kb/s at 3MP and 10 fps. Once I set the i-frame to 10, I could turn the bit rate back up to 4096 with no problems.

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What do you think the I-frame rate is exactly?

Who, me? It's when the full frame is sent, which is then updated with the p-frames.

 

If you're wondering why this would help the Dahua avoid drop-outs, I have a few theories unsubstantiated by data, but I can verify that it worked for me and multiple other people.

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