EventRecordCap capability message in JSON format
{ "EventRecordCap":{ "frontRecordTime":{ /*optional, pre-recording time range when alarm is triggered or event occurred, unit: second*/ "@min": , "@max": }, "afterRecordTime":{ /*optional, post-recording time range when alarm is triggered or event occurred, unit: second*/ "@min":, "@max": }, "recordTime":{ /*supported recording time type: 1 (pre-record for 5 seconds and post-record for 2 seconds), 2 (pre-record for 2 seconds and post-record for 5 seconds)*/ "@opt":[1,2] }, "method":{ /*optional, methods supported by the function: "get", "put"-edit*/ "@opt":["get","put"] } } }