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ibis

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Everything posted by ibis

  1. Hi, I'm looking for a camera that would be able to get its time via NTP and store the accurate time code to the H.264 stream. There would be used to monitor an area where we also have machines with limit switches and security fences. We need to be able to match the input from the sensors with the video with an accuracy of better than 0.5 seconds. I've tested some cheap Kingdisplay/K&D Security KDW-series camera, but I was only able to get the stream start timestamp with 1s resolution and even that seems to be off by 0-1s. The frame number can then be used to get relative time from the starting point. FTP or RTSP streaming are both ok. Any suggestions or experience from this kind of usage ?
  2. I'm usually finding some NTP server that is relatively close. In Finland I'm using the NTP server provided by our local NIST-like organization. In this case we'll setup an NTP server on the DVR server. This way we can keep the cameras and the DVR time in sync without being dependent on any external network. We don't care about being absolutely right in this application, just the relative timing. pool.ntp.org is used by many linux distros, check out http://www.pool.ntp.org/en/
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