77 lines
2.7 KiB
JavaScript
77 lines
2.7 KiB
JavaScript
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// atem-connection v2.0.0 is needed to monitor status of the connection
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const { Atem, AtemConnectionStatus } = require('atem-connection')
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class AtemConnector {
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constructor(ip, port, communicator) {
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this.ip = ip
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this.port = port
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this.communicator = communicator
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this.isAtemConnected = false
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}
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onStateChange() {
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const programs = this.myAtem.listVisibleInputs("program").sort()
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const previews = this.myAtem.listVisibleInputs("preview").sort()
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this.communicator.notifyProgramChanged(programs, previews)
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const channelNames = Object.values(this.myAtem.state.inputs).reduce((map, input) => {
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if (input.isExternal) {
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map[input.inputId] = input.longName
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}
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return map
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}, {})
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const channelCount = Object.keys(channelNames).length
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this.communicator.notifyChannels(channelCount, channelNames)
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}
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connect() {
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this.myAtem = new Atem({
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// debug: true,
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})
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this.myAtem.on('info', console.log)
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this.myAtem.on('error', console.error)
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console.log(`Connecting to ATEM at ${this.ip}:${this.port}`)
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this.myAtem.connect(this.ip, this.port)
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this.myAtem.on('connected', () => {
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this.isAtemConnected = true
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console.log("Connected to ATEM")
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this.communicator.notifyMixerIsConnected()
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this.onStateChange()
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})
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this.myAtem.on('disconnected', () => {
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console.log(
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this.isAtemConnected ?
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"Lost connection to ATEM" :
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"Could not connect to ATEM. This could mean that the maximum number of devices are already connected to ATEM."
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)
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this.isAtemConnected = false
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this.communicator.notifyMixerIsDisconnected()
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})
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this.myAtem.on('stateChanged', this.onStateChange.bind(this))
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}
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disconnect() {
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console.log("Cutting connection to Atem mixer.")
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this.isAtemConnected = false
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this.communicator.notifyMixerIsDisconnected()
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if(this.myAtem) {
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this.myAtem.removeAllListeners("info")
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this.myAtem.removeAllListeners("error")
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this.myAtem.removeAllListeners("connected")
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this.myAtem.removeAllListeners("disconnected")
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this.myAtem.removeAllListeners("stateChanged")
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this.myAtem.destroy()
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}
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}
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isConnected() {
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// @TODO: is there an API function so that we do not need to track state?
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return this.isAtemConnected
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}
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}
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AtemConnector.ID = "atem"
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AtemConnector.defaultIp = "127.0.0.1"
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AtemConnector.defaultPort = 9910
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module.exports = AtemConnector;
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