Compositing

Up to five separate elements containing videos and images can be superimposed and composited against the background video. Use a different layer for each element according to the application and type of content.

Images for use with a USK/DSK/KEY must be uploaded to this service beforehand. You can also use input from an external graphics system on a DSK.

Types of compositing

This service includes USK (Upstream Key), DSK (Downstream Key), KEY, and Effect with different functions and use.

USK

A USK always composites an image against the background video. One image content can be configured for each of six input videos, [Player 1], and [Player 2] (or [Replay]).
Image content configured for a USK is always displayed while the video source is displayed on the [Background] layer. Unlike other compositing, a USK is associated with the [Background] layer, so it is not possible to switch the show/hide state for the output video easily.

DSK

A DSK composites an image directly on the upper-most layer of the program output video. You can configure a total of two images, one each for the [DSK 1] and [DSK 2] layers. Compositing input from an external graphics system is also supported.
In the [Layer] pane, you can switch the show/hide state for the program output (transition effects cannot be applied).

KEY

A KEY is used when you want to manually show/hide a composited image against a video. Only one image can be set for the [KEY] layer.

Effect

An effect is a function for compositing another video on the background video according to a preset provided by this service. A box-shaped PinP (Picture in Picture) preset is provided.
Select a preset on the [Effect] layer and set the video in the displayed [Layer 1] layer.

  • PinP
    This function composites a separate video as a subscreen against the background video. You can set one video on the [Layer 1] layer.

Display priority

When multiple elements are composited for the background video, they are displayed in the following order from the front to the back.

  1. [DSK2] layer
  2. [DSK1] layer
  3. [KEY] layer
  4. [Layer 1] layer (PinP subscreen)
  5. USK (displayed on the [Background] layer)
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