# Range

## Function

This API is used to get parameter range for Channel > Video Cover page.

> Note:

> The Range provides reference information for client UI input limits and API request limits. When sending Get and Set requests, the parameters must be strictly limited according to the Range, otherwise the request may be rejected by the device.

## Request Message

None.

Sample:

    POST /API/ChannelConfig/VideoCover/Range HTTP/1.1

    {
    	"version": "1.0",
    	"data": {}
    }

## Response Message

### Parameter Description

#### Table 1

Parameter | Range | Type | Description
--- | --- | --- | ---
channel | “CH1”…”CH1x” “IP_CH1”…” IP_CH1x” “WIFI_CH1”…” WIFI_CH1x” The number of channels depends on the capabilities of the device. | string array | Each array bit represents a channel with a string.

#### Table 2

Parameter | Range | Type | Description
--- | --- | --- | ---
channel_info |  | JSON Object | Channel Information JSON show as follow Table 3
channel_max |  | Int | Maximum number of channels
support_copy |  | bool | Page support copy (NVR, DVR dedicated).

#### Table 3

Parameter | Range | Type | Description
--- | --- | --- | ---
CH1 |  | Json Object | JSON show as follow Table 4
… |  | Json Object |
IP_CH1 |  | Json Object |
… |  | Json Object |
WIFI_CH1 |  | Json Object |
… |  | Json Object |

#### Table 4

Parameter | Range | Type | Description
--- | --- | --- | ---
status | "Offline", "Online" | string | Channel online status, only for digital channels. Note: This field does not exist when the channel is online.
privacy_zone_enable |  | Bool | Video block switch.
zone_info_p |  | JSON array | JSON show as follow Table 5 Note: The onvif protocol supports up to four occlusion areas.
copy_ch | "digit""analog""wifi" | string | Support channel replication logo (NVR, DVR special).

#### Table 5

Parameter | Range | Type | Description
--- | --- | --- | ---
zone_no | 1-8 | int | Occluded area number.
zone_enable |  | bool | Occluded area switch.
point |  | JSON array | JSON show as follow Table 6

#### Table 6

Parameter | Range | Type | Description
--- | --- | --- | ---
left | 0-704 | int | X Coordinate
top | 0-576 | int | Y Coordinate
width | 0-704 | int | Width
height | 0-576 | int | Height

> Tips:

> The response message of the Range request may not contain all the fields in the above table, and the fields not included indicate that the device does not support this parameter configuration.

Sample:

    HTTP/1.1 200 OK
    Content-Type: application/json

    {
    	"result": "success",
    	"data": {
    		"channel_max": 16,
    		"channel_info": {
    			"type": "object",
    			"items": {
    				"CH1": {
    					"type": "object",
    					"items": {
    						"status": {
    							"description": "Only offline channel has this variable.",
    							"type": "string",
    							"mode": "r",
    							"items": [
    								"Offline",
    								"Online"
    							]
    						},
    						"privacy_zone_enable": {
    							"type": "bool"
    						},
    						"zone_info": {
    							"type": "array",
    							"min_size": 0,
    							"max_size": 4,
    							"items": [
    								{
    									"zone_no": 1,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 2,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 3,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 4,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								}
    							]
    						}
    					}
    				},
    				"CH2": {
    					"type": "object",
    					"items": {
    						"status": {
    							"description": "Only offline channel has this variable.",
    							"type": "string",
    							"mode": "r",
    							"items": [
    								"Offline",
    								"Online"
    							]
    						},
    						"privacy_zone_enable": {
    							"type": "bool"
    						},
    						"zone_info": {
    							"type": "array",
    							"min_size": 0,
    							"max_size": 6,
    							"items": [
    								{
    									"zone_no": 1,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 2,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 3,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 4,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 5,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 6,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								}
    							]
    						}
    					}
    				},
    				"CH3": {
    					"type": "object",
    					"items": {
    						"status": {
    							"description": "Only offline channel has this variable.",
    							"type": "string",
    							"mode": "r",
    							"items": [
    								"Offline",
    								"Online"
    							]
    						},
    						"privacy_zone_enable": {
    							"type": "bool"
    						},
    						"zone_info": {
    							"type": "array",
    							"min_size": 0,
    							"max_size": 4,
    							"items": [
    								{
    									"zone_no": 1,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 2,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 3,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 4,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								}
    							]
    						}
    					}
    				},
    				"CH4": {
    					"type": "object",
    					"items": {
    						"status": {
    							"description": "Only offline channel has this variable.",
    							"type": "string",
    							"mode": "r",
    							"items": [
    								"Offline",
    								"Online"
    							]
    						},
    						"privacy_zone_enable": {
    							"type": "bool"
    						},
    						"zone_info": {
    							"type": "array",
    							"min_size": 0,
    							"max_size": 4,
    							"items": [
    								{
    									"zone_no": 1,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 2,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 3,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 4,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								}
    							]
    						}
    					}
    				},
    				"CH5": {
    					"type": "object",
    					"items": {
    						"status": {
    							"description": "Only offline channel has this variable.",
    							"type": "string",
    							"mode": "r",
    							"items": [
    								"Offline",
    								"Online"
    							]
    						},
    						"zone_info": {
    							"type": "array",
    							"min_size": 0,
    							"max_size": 4,
    							"items": [
    								{
    									"zone_no": 1,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 2,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 3,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
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    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								},
    								{
    									"zone_no": 4,
    									"zone_enable": {
    										"type": "bool"
    									},
    									"rect": {
    										"type": "object",
    										"items": {
    											"left": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"top": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											},
    											"width": {
    												"type": "int32",
    												"min": 0,
    												"max": 704
    											},
    											"height": {
    												"type": "int32",
    												"min": 0,
    												"max": 576
    											}
    										}
    									}
    								}
    							]
    						}
    					}
    				}
    			}
    		}
    	}
    }

## Error Code

See Response Messages Body and Common error_code for more information.