+ return res(obj)
+ })
+ })
+ .catch(err => rej(err))
+ })
+}
+
+function getYoutubeDLSubs (url: string, opts?: object): Promise<YoutubeDLSubs> {
+ return new Promise<YoutubeDLSubs>((res, rej) => {
+ const cwd = CONFIG.STORAGE.TMP_DIR
+ const options = opts || { all: true, format: 'vtt', cwd }
+
+ safeGetYoutubeDL()
+ .then(youtubeDL => {
+ youtubeDL.getSubs(url, options, (err, files) => {
+ if (err) return rej(err)
+ if (!files) return []
+
+ logger.debug('Get subtitles from youtube dl.', { url, files })
+
+ const subtitles = files.reduce((acc, filename) => {
+ const matched = filename.match(/\.([a-z]{2})\.(vtt|ttml)/i)
+ if (!matched || !matched[1]) return acc
+
+ return [
+ ...acc,
+ {
+ language: matched[1],
+ path: join(cwd, filename),
+ filename
+ }
+ ]
+ }, [])
+
+ return res(subtitles)
+ })
+ })
+ .catch(err => rej(err))