import execa from 'execa' import { pathExists, writeFile } from 'fs-extra' import { join } from 'path' import { CONFIG } from '@server/initializers/config' import { VideoResolution } from '@shared/models' import { logger, loggerTagsFactory } from '../logger' import { getProxy, isProxyEnabled } from '../proxy' import { isBinaryResponse, peertubeGot } from '../requests' const lTags = loggerTagsFactory('youtube-dl') const youtubeDLBinaryPath = join(CONFIG.STORAGE.BIN_DIR, CONFIG.IMPORT.VIDEOS.HTTP.YOUTUBE_DL_RELEASE.NAME) export class YoutubeDLCLI { static async safeGet () { if (!await pathExists(youtubeDLBinaryPath)) { await this.updateYoutubeDLBinary() } return new YoutubeDLCLI() } static async updateYoutubeDLBinary () { const url = CONFIG.IMPORT.VIDEOS.HTTP.YOUTUBE_DL_RELEASE.URL logger.info('Updating youtubeDL binary from %s.', url, lTags()) const gotOptions = { context: { bodyKBLimit: 20_000 }, responseType: 'buffer' as 'buffer' } try { let gotResult = await peertubeGot(url, gotOptions) if (!isBinaryResponse(gotResult)) { const json = JSON.parse(gotResult.body.toString()) const latest = json.filter(release => release.prerelease === false)[0] if (!latest) throw new Error('Cannot find latest release') const releaseName = CONFIG.IMPORT.VIDEOS.HTTP.YOUTUBE_DL_RELEASE.NAME const releaseAsset = latest.assets.find(a => a.name === releaseName) if (!releaseAsset) throw new Error(`Cannot find appropriate release with name ${releaseName} in release assets`) gotResult = await peertubeGot(releaseAsset.browser_download_url, gotOptions) } if (!isBinaryResponse(gotResult)) { throw new Error('Not a binary response') } await writeFile(youtubeDLBinaryPath, gotResult.body) logger.info('youtube-dl updated %s.', youtubeDLBinaryPath, lTags()) } catch (err) { logger.error('Cannot update youtube-dl from %s.', url, { err, ...lTags() }) } } static getYoutubeDLVideoFormat (enabledResolutions: VideoResolution[]) { /** * list of format selectors in order or preference * see https://github.com/ytdl-org/youtube-dl#format-selection * * case #1 asks for a mp4 using h264 (avc1) and the exact resolution in the hope * of being able to do a "quick-transcode" * case #2 is the first fallback. No "quick-transcode" means we can get anything else (like vp9) * case #3 is the resolution-degraded equivalent of #1, and already a pretty safe fallback * * in any case we avoid AV1, see https://github.com/Chocobozzz/PeerTube/issues/3499 **/ const resolution = enabledResolutions.length === 0 ? VideoResolution.H_720P : Math.max(...enabledResolutions) return [ `bestvideo[vcodec^=avc1][height=${resolution}]+bestaudio[ext=m4a]`, // case #1 `bestvideo[vcodec!*=av01][vcodec!*=vp9.2][height=${resolution}]+bestaudio`, // case #2 `bestvideo[vcodec^=avc1][height<=${resolution}]+bestaudio[ext=m4a]`, // case #3 `bestvideo[vcodec!*=av01][vcodec!*=vp9.2]+bestaudio`, 'best[vcodec!*=av01][vcodec!*=vp9.2]', // case fallback for known formats 'best' // Ultimate fallback ].join('/') } private constructor () { } download (options: { url: string format: string output: string processOptions: execa.NodeOptions additionalYoutubeDLArgs?: string[] }) { return this.run({ url: options.url, processOptions: options.processOptions, args: (options.additionalYoutubeDLArgs || []).concat([ '-f', options.format, '-o', options.output ]) }) } async getInfo (options: { url: string format: string processOptions: execa.NodeOptions additionalYoutubeDLArgs?: string[] }) { const { url, format, additionalYoutubeDLArgs = [], processOptions } = options const completeArgs = additionalYoutubeDLArgs.concat([ '--dump-json', '-f', format ]) const data = await this.run({ url, args: completeArgs, processOptions }) const info = data.map(this.parseInfo) return info.length === 1 ? info[0] : info } async getSubs (options: { url: string format: 'vtt' processOptions: execa.NodeOptions }) { const { url, format, processOptions } = options const args = [ '--skip-download', '--all-subs', `--sub-format=${format}` ] const data = await this.run({ url, args, processOptions }) const files: string[] = [] const skipString = '[info] Writing video subtitles to: ' for (let i = 0, len = data.length; i < len; i++) { const line = data[i] if (line.indexOf(skipString) === 0) { files.push(line.slice(skipString.length)) } } return files } private async run (options: { url: string args: string[] processOptions: execa.NodeOptions }) { const { url, args, processOptions } = options let completeArgs = this.wrapWithProxyOptions(args) completeArgs = this.wrapWithIPOptions(completeArgs) completeArgs = this.wrapWithFFmpegOptions(completeArgs) const { PYTHON_PATH } = CONFIG.IMPORT.VIDEOS.HTTP.YOUTUBE_DL_RELEASE const output = await execa(PYTHON_PATH, [ youtubeDLBinaryPath, ...completeArgs, url ], processOptions) logger.debug('Runned youtube-dl command.', { command: output.command, ...lTags() }) return output.stdout ? output.stdout.trim().split(/\r?\n/) : undefined } private wrapWithProxyOptions (args: string[]) { if (isProxyEnabled()) { logger.debug('Using proxy %s for YoutubeDL', getProxy(), lTags()) return [ '--proxy', getProxy() ].concat(args) } return args } private wrapWithIPOptions (args: string[]) { if (CONFIG.IMPORT.VIDEOS.HTTP.FORCE_IPV4) { logger.debug('Force ipv4 for YoutubeDL') return [ '--force-ipv4' ].concat(args) } return args } private wrapWithFFmpegOptions (args: string[]) { if (process.env.FFMPEG_PATH) { logger.debug('Using ffmpeg location %s for YoutubeDL', process.env.FFMPEG_PATH, lTags()) return [ '--ffmpeg-location', process.env.FFMPEG_PATH ].concat(args) } return args } private parseInfo (data: string) { return JSON.parse(data) } }