yt-dlp \
--cookies-from-browser chrome \
-f136+ba \
--write-auto-sub \
--sub-lang zh-Hans-ja \
--write-link \
--write-thumbnail \
--embed-metadata \
--merge-output-format mp4 \
--output '%(playlist_index)s-%(playlist)s-%(title)s.mp4' \
--default-search 'ytsearch' \
'https://www.youtube.com/watch?v=h38Wmc1_0as'


yt-dlp \
--cookies-from-browser chrome \
--list-subs \
'https://www.youtube.com/watch?v=6QTQHAodgoQ'


yt-dlp \
--cookies-from-browser chrome \
--list-formats \
'https://www.youtube.com/watch?v=zvV3ubOBdqU'

ffmpeg -i your_file.vtt your_file.srt

ffmpeg -i input.mp4 -vf "subtitles=1.srt" output.mp4