Genvid Studio sample


The Genvid Studio and Composition feature is provided as a preview. The elements presented here will likely change in the future. The current version is only supported in Google Chrome.

The Studio sample exposes the composition feature of the Genvid stack through a web interface. It can be used with either two instances of a game or with the Genvid Ingest sample. For this example, we use two instances of the Tutorial sample composed in different ways.

You can switch the output from one of the tutorial instances to the other, as well as create a PIP (picture-in-picture) composition. In PIP mode, you can select either of the tutorial samples as the inputs for the background picture or the PIP window. You can specify transitions between the two, as well as the window position.

Cluster configuration

Start a local cluster and set up the tutorial. After confirming it’s working, stop the services and do the following:

  • If you are on a The Cloud Environment, load the images and then the configuration:

    py -c {clustername} upload-images --update-config
    py -c {clustername} load
  • If you are in a Local Environment, you only need to load the configuration:

    py load

You can now go back in Cluster UI and see that a new job and a link (both named studio) were added to jobs page. You can now start streaming by clicking the Start All button.

Once the Studio link is enabled, you can click it to access the Studio page.

The Studio website


This version of the Studio website only works on Google Chrome. It is only available as a preview and the interface will likely change in the future.


We added an ON AIR button to the Studio website in version 1.18.0.

If your streaming service is configured to youtube or twitch, the broadcast will not start if the ON AIR button is off.

If your streaming service is configured to standalone, the ON AIR button will not affect the broadcast.

Starting a broadcast when streaming on YouTube or Twitch

To start a broadcast, click on the ON AIR button in the broadcast widget. The broadcast will start some time later depending on the latency generated by the streaming service of your choice (e.g. YouTube or Twitch).

ON AIR button


The ON AIR button will not affect standalone streaming broadcast.


The top of the Composition page is the monitor screen. It displays four different areas:

  1. The top left (preview) is the current Composition settings view.
  2. The top right (program) is the current broadcast output.
  3. The bottom left is the first input.
  4. The bottom right is the second input.

We only started one tutorial instance, so there is only one input active.

Monitor Screen

Composition editing

There are controls for modifying the composition. You can go to the individual page of a control, or use the dashboard to have all the controls at once.

Composition Controls

Example - How to switch video source

Click the green arrow next to “tutorial” on the Cluster-UI jobs page to start a second tutorial instance.

Tutorial Count

We now have two active inputs.

Dual Inputs

Select Source 1 as the active input in the Source of the Video Mixer.

Select Source 1

Source 1 shows in the preview area, while Source 0 still broadcasts.

Source1 Selected

Click Cut in the Transition section of Compose to switch the streaming to Source 1.

Click Cut

Source 1 is now broadcasting.

Source1 Broadcast

Example - How to activate PIP

Select Picture-in-Picture in the Layout dropdown list of the Video Mixer.

Select Pip

Source 0 now shows in the PIP window, while Source 1 is the background image.


Click Cut in the Transition section of Compose to switch the streaming to the PIP composition.

Click Cut

The PIP composition is now broadcasting.

Pip Broadcasted

You can now experiment with the other settings.


A dashboard is a customized layout of all control panels. You can create dashboard and modify them.


Create a Dashboard

To create a dashboard, go to the Dashboards menu and click New Dashboard. You will go to a page where you can create a dashboard. Enter an ID and click Create.

New Dashboard

Edit a Dashboard

To edit a dashboard, click Edit button on the navigation bar when the dashboard is active. You can add, remove, move or resize the control panels.

  • To save the the layout modification to the dashboard, click the Save button.
  • To remove a dashboard, click the Delete button.
New Dashboard

Script reference

Studio sample script

usage: [-h] [--loglevel {DEBUG,INFO,WARNING,ERROR}] [-c CLUSTER_ID]
                 {load,unload,upload-images,env} ...

Positional Arguments

command Possible choices: load, unload, upload-images, env

Named Arguments


Possible choices: DEBUG, INFO, WARNING, ERROR

Set the script log level

-c, --cluster_id
 The cluster id. Default local



Load the specified target definition in the cloud load [-h]


Unload the specified target definition in the cloud unload [-h]


Upload studiod images to the cloud upload-images [-h] [-v VERSION] [-b BUCKET] [-p PATH] [-u]
Named Arguments
-v, --version

The version to upload

Default: “1.18.0”

-b, --bucket Name of the bucket to use. Default is a combination of AWS account, bastion and cluster ids.
-p, --path

The path in the bucket (default: “/images/sdk-1.18.0”).

Default: “/images/sdk-1.18.0”

-u, --update-config

Upload configuration in the current cluster.

Default: False


Print environment variables env [-h]