42 lines
1.7 KiB
JavaScript
42 lines
1.7 KiB
JavaScript
 
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// Read-only snapshot of the ATEM switcher's audio (Fairlight) and camera control (CCU) state,
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// printed as one JSON line. Uses the atem-connection library inside Companion's ATEM module,
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// run with Companion's own node. Nothing is sent that changes the switcher.
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//
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// node atem_state.js <switcher ip> <path to atem-connection> [seconds to collect CCU values]
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const [ip, lib, secs] = process.argv.slice(2)
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const { Atem } = require(lib)
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const ccu = {}
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const atem = new Atem({ disableMultithreaded: true })
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atem.on('receivedCommands', (cmds) => {
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for (const c of cmds) {
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if (c.constructor && c.constructor.rawName === 'CCdP') {
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const p = c.properties
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const v = p.numberData && p.numberData.length ? p.numberData
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: p.boolData && p.boolData.length ? p.boolData
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: p.bigintData && p.bigintData.length ? p.bigintData.map(Number) : p.stringData
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ccu[`${c.source}/${c.category}/${c.parameter}`] = v
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}
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}
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})
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const done = (out, code) => {
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process.stdout.write(JSON.stringify(out) + '\n')
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atem.disconnect().finally(() => process.exit(code))
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setTimeout(() => process.exit(code), 2000)
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}
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setTimeout(() => done({ error: 'no connection to the switcher' }, 2), 15000)
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atem.on('connected', () => {
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setTimeout(() => {
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const inputs = {}
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const fl = (atem.state.fairlight && atem.state.fairlight.inputs) || {}
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for (const [id, input] of Object.entries(fl)) {
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if (!input) continue
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for (const [sid, src] of Object.entries(input.sources || {})) {
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if (!src || !src.properties) continue
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inputs[`${id}/${sid}`] = { mixOption: src.properties.mixOption, faderGain: src.properties.faderGain }
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}
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}
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done({ model: atem.state.info && atem.state.info.productIdentifier, fairlight: inputs, ccu }, 0)
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}, (Number(secs) || 3) * 1000)
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})
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atem.connect(ip)
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