[FFmpeg-user] How does one apply a filter option for a limited amount of time?

[David Niklas]

Hello,

Here's my command:

ffmpeg -i in.mp4 -filter_complex
"drawbox=w=1920:h=1080:color=black at 1:t=fill" out.mp4

How do I apply it for only a few seconds to a specific time in the video?

Thanks!