76 lines
2.0 KiB
JavaScript
Executable File
76 lines
2.0 KiB
JavaScript
Executable File
#!/usr/bin/env node
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const fs = require("fs")
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function convertFile(fn) {
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const rsf = fs.readFileSync(fn)
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const fmt = rsf.readInt16BE(0) // 0x0100
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if (fmt != 0x0100) {
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throw new Error("Invalid input format: " + fmt)
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}
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const size = rsf.readInt16BE(2)
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const samplerate = rsf.readInt16BE(4)
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const repeat = rsf.readInt16BE(6)
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const datasize = rsf.length - 8
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const wavHd = new Buffer(44)
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function writeMark(off, mark) {
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for (let i = 0; i < mark.length; ++i) {
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wavHd[off + i] = mark.charCodeAt(i)
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}
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}
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writeMark(0, 'RIFF')
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wavHd.writeInt32LE(datasize + 36, 4)
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writeMark(8, 'WAVE')
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writeMark(12, 'fmt ')
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wavHd.writeInt32LE(16, 16) // fmt size
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wavHd.writeInt16LE(1, 20) // PCM
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wavHd.writeInt16LE(1, 22) // mono, 1ch
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wavHd.writeInt32LE(samplerate, 24)
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wavHd.writeInt32LE(samplerate, 28) // byterate
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wavHd.writeInt16LE(1, 32) // block align
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wavHd.writeInt16LE(8, 34) // bits per sample
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writeMark(36, 'data')
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wavHd.writeInt32LE(datasize, 40)
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let wav = Buffer.concat([wavHd, rsf.slice(8)])
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return wav
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}
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let out = {
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"*": {
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namespace: "sounds",
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dataEncoding: "base64",
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mimeType: "audio/wav"
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}
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}
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let ts = "namespace sounds {\n"
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let bf
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for (let i = 2; i < process.argv.length; ++i) {
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let fn = process.argv[i]
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let m = /([^\/]+\/[^/]+)\.rsf$/.exec(fn)
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let bn = m[1]
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bf = convertFile(fn)
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bn = bn.replace(/[\/\-]/g, " ")
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.toLowerCase()
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.replace(/(\d)\s+/g, (f, n) => n)
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.replace(/\s+(.)/g, (f, l) => l.toUpperCase())
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out[bn] = bf.toString("base64")
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ts += ` //% fixedInstance jres\n`
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ts += ` export const ${bn} = music.fromWAV(hex\`\`);\n`
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}
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ts += `}\n`
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fs.writeFileSync("out.json", JSON.stringify(out, null, 4))
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fs.writeFileSync("out.ts", ts)
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fs.writeFileSync("out.wav", bf)
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//if (require("os").platform() == "darwin")
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// require('child_process').execSync("afplay out.wav")
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// TODO also play on Windows
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