one of my sites runs on a Debian Wheezy with a self-compiled v1.26.3. It actually aggregates up to 10 PLANET cameras via RTSP/H.264 at two different sets of resolutions (640x480 + 800x592 @ 10/15 fps). I've described the way cameras are configured within ZM using the following wiki page:
Back to my initial problem - I'm facing destortion and image artifacts, occurring more or less frequently. See the attached images.
- No RFI/EMI, cables used for installation all of CAT 6a (SSTP)
- The entire setup is grounded so no interference from that side neither
- No Power Fluctuations since the setup is powered using a UPS which also serves as an AVR
- ZoneMinder Instance is a "far-end" system connected via a fiber optical link (fully routed)
Some additional thoughts: Sometimes cameras are opting out just like that requiring a hard reset. I'm trying to handle this using PoE monitoring implemented by the switch powering the cameras. Just as of now the feature is still buggy as hell but also only breaks it down to the network level using ICMP echo probes. So if the web server becomes unresponsive leaving the camera reachable via ICMP, the reset won't happen. Well, funny thing is that it also happened with the firmware versions before.
To me it looks more like an issue that might require some tuning on the side of ffmpeg/avconv?
Any ideas? Experience? Suggestions?