julusian
ATEM connection camera control - @atem-connection/camera-control
Usage
This library can be used with atem-connection NPM Github, to provide a friendly interface for camera control.
Example:
import { Atem, Commands } from 'atem-connection'
import { AtemCameraControlDirectCommandSender, AtemCameraControlStateBuilder } from '@atem-connection/camera-control'
// Create the class which tracks the current state from the atem
const cameraControlState = new AtemCameraControlStateBuilder(4)
const atem = new Atem({})
atem.connect('10.0.0.1')
// Create the command sender. Alternatively `AtemCameraControlBatchCommandSender` can be used to be able to batch multiple commands to be sent once
const cameraControlSender = new AtemCameraControlDirectCommandSender(atem)
atem.on('connected', () => {
console.log('connected')
// Perform an autofocus of camera 1 after a short timeout
setTimeout(() => {
cameraControlSender.lensTriggerAutoFocus(1)
}, 1000)
})
atem.on('disconnected', () => {
cameraControlState.reset()
})
atem.on('receivedCommands', (commands) => {
const cameraCommands = []
for (const command of commands) {
if (command instanceof Commands.CameraControlUpdateCommand) cameraCommands.push(command)
}
const changes = cameraControlState.applyCommands(cameraCommands)
// Do something based on the reported changes
console.log('camera changes', changes)
})Development
Setting up
- Clone the repository
- Install a compatible version of nodejs and yarn
- Build the project with
yarn build
Modifying the code
You can run yarn build:main --watch to rebuild the typescript code, which will re-run upon saving a file.
There are some unit tests, which can be run with yarn unit. This command calls into jest, so any jest arguments can also be used