Question: How to get NVR channel online and offline

onvif / specs

ONVIF Network Interface Specifications

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Question: How to get NVR channel online and offline #470

Closed xsmart closed 2 months ago

xsmart commented 2 months ago

Use onvif protocol to connect to NVR, and get Video Source list of the NVR channels, we find most NVR only response the online Video Source, and is there has any method get all the online/offline Video Source of the NVR and also the online/offline Video Source names?

jflevesque-genetec commented 2 months ago

Sadly that's implementation specific to the vendor. If the device provides all sources, you can look at the signal lost event to know if the source is online or not: https://www.onvif.org/specs/srv/img/ONVIF-Imaging-Service-Spec.pdf section 5.5.1.5

xsmart commented 2 months ago

Thanks