Video Multistream Pane (videoDriver-VideoMultistreamPane)

This widget configures a single network connection to display multiple cameras, thereby saving network bandwidth. It is available in the videoDriver palette Px folder.

NOTE: You cannot use the VideoMultistreamPane widget for remote video in an enterprise environment. As an alternative, use the Surveillance Viewer component.

There are two ways to design a single Px page that holds one or more camera views:

Drag this widget directly from the palette onto a Px page canvas pane and set the Video Multistream Binding Ord to the DVR device.
The default height and width of the canvas pane is 100 x 100 pixels. Adjust this pane’s View Size property as required to provide the necessary space for displaying the desired number of live video streams. Then add Live Video widgets as needed for the multiple camera displays.
Drag the devices from the Nav tree onto the Px page and use the Make Widget Wizard to add the Ord bindings to the widgets as you add them to the Px page.

Figure 28. Example VideoMultistreamPane widget with four live video players

Figure 29. Video Multistream Pane properties

To view these properties, double-click the VideoMultstreamPane component in the Nav tree.

Property	Value	Description
Content	additional properties	Configures the canvas pane. Refer to the Niagara Graphics Guide.
Margin	numbers	Defines all margins.
Padding	numbers	Defines the distance from the margins to where text and images begin.
Resolution	drop-down list (defaults to `Low`)	Specifies the pixel resolution of each transmitted frame. Options are: `High`, `Medium`, or `Low`. The actual pixel values for these three relative settings are defined in the video device.
Frame Rate	drop-down list (defaults to `Low`)	Defines the speed of the video stream. Options are: `Low`, `Medium`, and `High`. You can configure each rate.
Compression		Specifies a level of compression for use during live video streaming. The video device defines the actual compression values for these relative settings. Compression reduces bandwidth improving video transmission. Compression relates to resolution. The higher the compression, the lower the bandwidth requirements. However, over-compression may degrade video images. The video device defines the actual compression values for these relative levels. Higher compression uses less bandwidth but negatively affects image quality. The underlying video driver interprets these options: `None`, `Low`, `Medium`, or `High`
Stream Facets	Config Facets window	Configures streaming units.
binding	additional properties	Refer to “Video Multistream Binding (videoDriver-VideoMultistreamBinding) in this guide.