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import path from "node:path"
import { v4 as uuidv4 } from "uuid"
import tmpDir from "temp-dir"
import puppeteer from "puppeteer"
import { downloadFileToTmp } from '../utils/downloadFileToTmp.mts'
import { pendingFilesDirFilePath } from '../config.mts'
import { moveFileFromTmpToPending } from "../utils/moveFileFromTmpToPending.mts"
const instances: string[] = [
process.env.VC_VIDEO_UPSCALE_SPACE_API_URL
]
// TODO we should use an inference endpoint instead (or a space which bakes generation + upscale at the same time)
export async function upscaleVideo(fileName: string, prompt: string) {
const instance = instances.shift()
instances.push(instance)
const browser = await puppeteer.launch({
// headless: true,
protocolTimeout: 800000,
})
try {
const page = await browser.newPage()
await page.goto(instance, {
waitUntil: 'networkidle2',
})
const promptField = await page.$('textarea')
await promptField.type(prompt)
const inputFilePath = path.join(pendingFilesDirFilePath, fileName)
// console.log(`local file to upscale: ${inputFilePath}`)
await new Promise(r => setTimeout(r, 3000))
const fileField = await page.$('input[type=file]')
// console.log(`uploading file..`)
await fileField.uploadFile(inputFilePath)
// console.log('looking for the button to submit')
const submitButton = await page.$('button.lg')
// console.log('clicking on the button')
await submitButton.click()
/*
const client = await page.target().createCDPSession()
await client.send('Page.setDownloadBehavior', {
behavior: 'allow',
downloadPath: tmpDir,
})
*/
await page.waitForSelector('a[download="xl_result.mp4"]', {
timeout: 800000, // need to be large enough in case someone else attemps to use our space
})
const upscaledFileUrl = await page.$$eval('a[download="xl_result.mp4"]', el => el.map(x => x.getAttribute("href"))[0])
// it is always a good idea to download to a tmp dir before saving to the pending dir
// because there is always a risk that the download will fail
const tmpFileName = `${uuidv4()}.mp4`
await downloadFileToTmp(upscaledFileUrl, tmpFileName)
await moveFileFromTmpToPending(tmpFileName, fileName)
} catch (err) {
throw err
} finally {
await browser.close()
}
}
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