JSON message about the capability for getting video polling analysis task information
{ "tasksNum": 1, /*required, int,the number of tasks supported by the device*/ "taskIDLen": { /*required, string, task ID, 64 bytes at most*/ "@min": 64, "@max": 64 }, "engine": { /*required, int, for distinguishing models running in different engines*/ "@opt": [1, 2, 3, 4] }, "channel": { /*required, int, device channel No., specified device channel No. for video analysis task*/ "@opt": [1, 2] }, "frameRate": { /*required, int, frame rate (frame rate*100)*/ "@opt": [2500, 3000] }, "alertInterval": { /*optional, float, alert interval: 1(1 time per second), 0.5(2 times per second)*/ "opt": [1, 0.5] }, "pollingTime": { /*required,int,polling time period, the interval when you switch the channels during polling, unit: second*/ "@min": 1, "@max": 65535, "@def": 1 }, "status": { /*required, int, status: 0(not performed), 1(performing), 2(exception), 3(waiting in queue)*/ "@opt": [0, 1, 2, 3] }, "isSupportTimeRange": true, /*optional,daily arming schedules of tasks(by week), 8 time periods per day is the default*/ "alarmTargetOverlay":{ /*optional, boolean, whether to enable alarm target frame overlay*/ "@opt":["true","false"] } }