This plugin provides a dummy source to execute arbitrary commands when a scene is switched.

Current features:

Start a command at the following events: * Show (the source is shown in either preview or program). * Hide (the source is hidden so that no longer shown in neither preview nor program). * Activate (the source goes to the program). * Deactivate (the source goes from the program). * Show in preview (the source goes to the preview). * Hide from preview (the source goes from the preview).

Optionally, kill the created process at these conditions (this feature is not available for Windows as of now): * When hiding, kill the process created at shown. * When deactivating, kill the process created at activated. * When hiding from the preview, kill the process created at preview.

Possible usage: * Implementing custom tally lights. * Controlling PTZ cameras by switching the scene. Ii is possible to combine with CURL to send some commands. * Start and stop a daemon program required for the scene. * Trigger other operations through websocket at the event. A helper script is available for this (request-websocket.py). * Start or stop a streaming and recording. * Open a full screen video. * Open a calculator to teach about finances when switching a scene. * Other actions.

Caution: since this plugin executes arbitrary commands, users need to consider security concerns. For example, when combining with obs-websocket plugin, a remote user could change property through the websocket interface so that the arbitrary commands can be executed.