Welcome to Chapter 12 - Take this course on Udemy here - udemy.com/ptz-camera. Get the book at StreamGeeks.us/ptzcamera.
Robots were meant to be controlled by humans. Robotic cameras are no different. With the latest advancements in PTZ camera technology, you can effectively automate many PTZ camera movements with no need for manual camera control.
There are a variety of ways to trigger a PTZ preset to go off automatically when your production calls for it. For example, using open broadcaster software (OBS) you can add a web browser input to any scene that sends an HTTP command to move to a specific preset any time the producer switches to a specific input. You can enter multiple HTTP commands into OBS using multiple browser sources in the same scene to control, for example, one or two cameras simultaneously. The reason you would do this is to automate your production workflow. If you want the camera to go to a specific position at the end of a show, you can literally hard-code the commands into your video production software so that the PTZ preset move command is sent as soon as you transition to that specific scene.
Another use case for PTZ camera automation occurs during pre-show segments. For example, you can set up a loop of PTZ camera presets using OBS, Wirecast, vMix, or any of the other live streaming software that supports PTZ controls and playlists. In vMix, for example, each time you create a PTZ preset, the software creates an input for that PTZ preset position. Using vMix’s playlist feature you can set up the software to loop through an automated list of PTZ camera movements. This allows the software to issue the PTZ camera commands in a loop so that the cameras keep moving during a pre-or post-show segment.
Using OBS, the popular livestreaming software, for example, you can trigger multiple PTZ cameras to move using HTTP triggers at the same time. A list of these HTTP commands can usually be found at your PTZ camera manufacturer's website. Many forward-thinking PTZ camera operators have found ways to automate PTZ camera movements and effectively move multiple PTZ cameras at the same time exactly when they are needed. Controlling multiple cameras at the same time used to take a crew of camera operators. Today there are a variety of ways to control multiple robotic PTZ cameras with the single click of a button. Controlling multiple PTZ cameras at the same time is ideal for “scene changes'' where you would like some, or all of your PTZ cameras to move to a new location at the same time.
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28 ноя 2021
