52 lines
1.7 KiB
TypeScript
52 lines
1.7 KiB
TypeScript
import { createReadStream, createWriteStream } from 'fs'
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import { move, remove } from 'fs-extra/esm'
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import { Transform } from 'stream'
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import { MVideoCaption } from '@server/types/models/index.js'
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import { pipelinePromise } from './core-utils.js'
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async function moveAndProcessCaptionFile (physicalFile: { filename?: string, path: string }, videoCaption: MVideoCaption) {
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const destination = videoCaption.getFSPath()
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// Convert this srt file to vtt
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if (physicalFile.path.endsWith('.srt')) {
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await convertSrtToVtt(physicalFile.path, destination)
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await remove(physicalFile.path)
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} else if (physicalFile.path !== destination) { // Just move the vtt file
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await move(physicalFile.path, destination, { overwrite: true })
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}
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// This is important in case if there is another attempt in the retry process
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if (physicalFile.filename) physicalFile.filename = videoCaption.filename
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physicalFile.path = destination
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}
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// ---------------------------------------------------------------------------
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export {
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moveAndProcessCaptionFile
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}
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// ---------------------------------------------------------------------------
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async function convertSrtToVtt (source: string, destination: string) {
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const fixVTT = new Transform({
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transform: (chunk, _encoding, cb) => {
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let block: string = chunk.toString()
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block = block.replace(/(\d\d:\d\d:\d\d)(\s)/g, '$1.000$2')
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.replace(/(\d\d:\d\d:\d\d),(\d)(\s)/g, '$1.00$2$3')
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.replace(/(\d\d:\d\d:\d\d),(\d\d)(\s)/g, '$1.0$2$3')
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return cb(undefined, block)
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}
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})
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const srt2vtt = await import('srt-to-vtt')
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return pipelinePromise(
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createReadStream(source),
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srt2vtt.default(),
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fixVTT,
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createWriteStream(destination)
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)
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}
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