{
    "@apiVersion": "1.1",
    "name": "EVRtoFilesBasedOnHubMessages",
    "properties": {
      "description": "Event-based recording of video to files based on messages from via hub source",
      "parameters": [
        {
          "name": "rtspUserName",
          "type": "String",
          "description": "rtsp source user name.",
          "default": "dummyUserName"
        },
        {
          "name": "rtspPassword",
          "type": "String",
          "description": "rtsp source password.",
          "default": "dummyPassword"
        },
        {
          "name": "rtspUrl",
          "type": "String",
          "description": "rtsp Url"
        },
        {
          "name": "hubSourceInput",
          "type": "String",
          "description": "input name for hub source",
          "default": "recordingTrigger"
        },
        {
          "name": "fileSinkOutputName",
          "type": "String",
          "description": "file sink output name",
          "default": "filesinkOutput"
        }
      ],
      "sources": [
        {
          "@type": "#Microsoft.VideoAnalyzer.RtspSource",
          "name": "rtspSource",
          "endpoint": {
            "@type": "#Microsoft.VideoAnalyzer.UnsecuredEndpoint",
            "url": "${rtspUrl}",
            "credentials": {
              "@type": "#Microsoft.VideoAnalyzer.UsernamePasswordCredentials",
              "username": "${rtspUserName}",
              "password": "${rtspPassword}"
            }
          }
        },
        {
          "@type": "#Microsoft.VideoAnalyzer.IotHubMessageSource",
          "name": "iotMessageSource",
          "hubInputName": "${hubSourceInput}"
        }
      ],
      "processors": [
        {
          "@type": "#Microsoft.VideoAnalyzer.SignalGateProcessor",
          "name": "signalGateProcessor",
          "inputs": [
            {
              "nodeName": "iotMessageSource"
            },
            {
              "nodeName": "rtspSource",
              "outputSelectors": [
                {
                  "property": "mediaType",
                  "operator": "is",
                  "value": "video"
                }
              ]
            }
          ],
          "activationEvaluationWindow": "PT1S",
          "activationSignalOffset": "PT0S",
          "minimumActivationTime": "PT10S",
          "maximumActivationTime": "PT30S"
        }
      ],
      "sinks": [
        {
          "@type": "#Microsoft.VideoAnalyzer.FileSink",
          "name": "fileSink",
          "inputs": [
            {
              "nodeName": "signalGateProcessor",
              "outputSelectors": [
                {
                  "property": "mediaType",
                  "operator": "is",
                  "value": "video"
                }
              ]
            }
          ],
          "fileNamePattern": "sampleFilesFromEVR-${System.TopologyName}-${System.PipelineName}-${fileSinkOutputName}-${System.Runtime.DateTime}",
          "maximumSizeMiB":"512",
          "baseDirectoryPath":"/var/media"
        }
      ]
    }
  }