[FFmpeg-user] How to add duration (in secs) to a video file

[Michael Bradshaw]

On Fri, Oct 19, 2012 at 1:55 PM, Gagan Arora <gagan21arora at gmail.com> wrote:
> Hi,
>
> How can i add duration to a video file using ffmpeg for windows.

What do you mean? Make the video longer? How? Slowing it down? Adding
black frames to the beginning or end? Something else?