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Basic introduction about development is here.
System structure and features
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<?xml version="1.0" encoding="UTF-8"?>
<tt:MetaDataStream xmlns:tt="http://www.onvif.org/ver10/schema" xmlns:wsnt="http://docs.oasis-open.org/wsn/b-2" xmlns:xsd="http://docs.onvif.org/ver10/schema">
<tt:Event>
<wsnt:NotificationMessage>
<wsnt:Topic Dialect="http://www.onvif.org/ver10/tev/topicExpression/ConcreteSet" xmlns:tns1="http://www.onvif.org/ver10/topics">tns1:AppEvent/SampleApplication/SampleDetection</wsnt:Topic>
<wsnt:Message>
<tt:Message UtcTime="2023-01-17T17:00:00.000Z">
<tt:Source>
<tt:SimpleItem Name="VideoSource" Value="VideoSourceConfig" />
</tt:Source>
<tt:Data>
<tt:SimpleItem Name="Event detail" Value="Detected size 84x120" />
<tt:SimpleItem Name="Likelihood” Value=“0.8" />
<tt:ElementItem Name="Image">
<xsd:base64Binary>(base64 encoded jpeg image)</xsd:base64Binary>
</tt:ElementItem>
</tt:Data>
</tt:Message>
</wsnt:Message>
</wsnt:NotificationMessage>
</tt:Event>
</tt:MetaDataStream>
Parameter Name | value | Description | Requirement Level |
|---|---|---|---|
Topic | tns1:AppEvent/{AppName}/{ EventName} | AppName: Application name. Event name: Event name. This name is shown on VMS. *App name is up to 256 characters using alpha-numeral, hyphen, under score and period as camera's SDK specification. App name is necessary to match "EXTAPP1"or"EXTAPP2"or ... in the response of "/cgibin/getinfo?FILE=1" from camera. | Mandatory |
tt:Message> UtcTime | yyyy-mm-ddThh:mm:ss.fffZ | Timestamp of the event in UTC format. *i-PRO Active Guard server will overwrite the time when receiving the event. | Mandatory |
tt:Message>tt:Data> tt:SimpleItem> Event Detail | string (up to 32 characters) | Additional information about the event. This value is shown on VMS | Optional |
tt:Message>tt:Data> tt:SimpleItem> Likelihood | 0.0-1.0 | Likelihood value related to the event. This value is shown on VMS. | Optional |
tt:Message>tt:Data> tt:ElementItem> Image | Base64 encoded jpeg image | (e.g. Cropped image of the detected object) This image is shown on VI and Milestone but not shown on Genetec. | Optional |
*If the application does not use “Event detail”, “Likelihood” and “Image”,<tt:Data> are no need.
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