Isn’t there something like this
ffmpeg -i playlist.txt -vf drawtext="drawtextlist.txt"
Where playlist.txt
file '1.mp4'
file '2.mp4'
file '3.mp4'
and drawtextlist.txt
fontfile=OpenSans.ttf:text='For 1.mp4'
fontfile=OpenSans.ttf:text='For 2.mp4'
fontfile=OpenSans.ttf:text='For 3.mp4'
Is there any solution for playlists?