writesubtitles: Write the video subtitles to a file
writeautomaticsub: Write the automatically generated subtitles to a file
listsubtitles: Lists all available subtitles for the video
subtitlesformat: The format code for subtitles
subtitleslangs: List of languages of the subtitles to download (can be regex). The list may contain "all" to refer to all the available subtitles. The language can be prefixed with a "-" to exclude it from the requested languages, e.g. ['all', '-live_chat']
allsubtitles: Use subtitleslangs = ['all'], Downloads all the subtitles of the video (requires writesubtitles or writeautomaticsub)