[FFmpeg-user] Syntax of ffmpeg -t and -to

[Timothy Gu]

Nicolas George <nicolas.george <at> normalesup.org> writes:

> It just means that av_parse_time() can parse a negative duration. This is
> not very useful for the -t and -to options, but there is certainly some
> piece of code where it can be handy.

What is an example? Sorry for being so dumb, but I really cannot think of any
use case with negative duration.

Timothy