How can I extract a still image with subtitles from a movie?

Question

I would like to obtain a still image with subtitles from movie data.
But I do not know how to do it.
I know the method without subtitles.

ffmpeg -ss 1001 -i input.mkv -vframes 1 1001.jpg

Also, subtitle data is included in movie data

Stream # 0: 4 (jpn): Subtitle: hdmv_pgs_subtitle (default)

It is contained as shown.
It can also export as sup.

What kind of command can we do?

Answer 1

Use

ffmpeg -ss 1001 -copyts -i input.mkv -filter_complex [0:v][0:4]overlay -vframes 1 1001.jpg