Overview

Use the Multiplex node to combine multiple inputs (Video Source Nodes or parallel processing paths) into a single "multiplexed video" stream to optimize performance for downstream nodes or to display in a Tiled grid.

Multiplexed Video output from this node can only be connected to other nodes that support a Multiplexed Video input (ex. Demultiplex Video, Track Objects Node , Tile Video).

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TIP
Review the Using Video Multiplexing video guide.

Most common use cases for Multiplex are:

Run inferencing on multiple video streams using a single Model Inference Node. This allows more streams to be processed on memory-constrained devices since Lumeo will load the model only once. (Example pipeline: Video1, Video2 --> Multiplex -> Model Inference -> Tracking -> Demultiplex -> ....)
Tile the video into a Grid, using the Tile Video in Grid node.

Inputs & Outputs

Inputs : N, Media Format : Raw Video
Outputs : 1, Multiplexed Video
Output Metadata : None

Properties

Property	Description	Type	Default	Required
`resolution`	Output resolution	`string`	`1280x720`	No
`num_streams`	Must match the number of input streams connected to this node. Range: minimum `1`.	`number`	`1`	Yes

Output Metadata

Node does not insert any output metadata; upstream metadata continues through the pipeline