5.8.2 api camera snapshot
The /api/camera/snapshot function helps you download images from an internal or external IP camera connected to the intercom. Specify the video source, resolution and other parameters.
The function is part of the Camera service and the user must be assigned the Camera Monitoring privilege for authentication if required.
The GET or POST method can be used for this function.
Request parameters:
Parameter | Description |
|---|---|
width | Mandatory parameter specifying the horizontal resolution of the JPEG image in pixels. The snapshot resolution must comply with one of the supported options (see api/camera/caps). If an unsupported value is entered, the request will not be executed. |
height | Mandatory parameter specifying the vertical resolution of the JPEG image in pixels. The snapshot height and width must comply with one of the supported options (see api/camera/caps). If an unsupported value is entered, the request will not be executed. |
source | Optional parameter defining the video source (internal – internal camera, external – external IP camera). If the parameter is not included, the default video source included in the Hardware > Camera > Common settings section of the configuration web interface is selected. |
fps | Optional parameter defining the frame rate. If the parameter is set to ≥ 1, the intercom sends images at the set frame rate using the http server push method. |
| time | Optional parameter defining the snapshot time in the intercom memory. The time values must be within the intercom memory range: <-30, 0> seconds. When this parameter is used together with the fps parameter, the fps parameter is ignored and function returns only a single frame. When this parameter is used, the function returns snapshots of the maximum resolution of 1280×960 px (width×height). Higher width and height requests will be ignored. |
The reply is in the image/jpeg or multipart/x-mixed-replace (pro fps ≥ 1) format. If the request parameters are wrong, the function returns information in the application/json format.
Example:
GET /api/camera/snapshot?width=640&height=480&source=internal # following command returns a frame which was captured 5 seconds before the command was executed GET /api/camera/snapshot?width=1280&height=960&source=internal&time=-5