Recent versions of llv have trouble
managing multiple RTSP connections to a single device. As a consequence
the analytics overlay feature is not reliable.
The program supports rendering a number of edge analytics metadata overlays over the video. When enabled, the program tries to acquire all of them. Obviously, this will likely fail for all except one. The failing connections are terminated and the working ones continue. With two analytics running the effective overlay might become unusable.
Supported analytics
Some support is only partial. Most is based on reverse engineering and the results may not match the results from the manufacturers themselves
- Axis Video Motion detection 4
- IPS Intrusion detection
- Axis Perimeter Defender (version 0.0.11)
- Axis Demographics Identifier
- TechoAware VTrack ATM
- Axis "low level" tracking data
Caveats
- For Axis Video Motion Detection the program relies on 'Visual Confirmation' data. Version 4 outputs SVG data with very thin lines. It is hard to see. Additionally, and this applies to all VMD versions, the use of Visual confirmation affects detection accuracy negatively.