[FFmpeg-user] Meaning of duration

[Jarno Suni]

On Fri, Dec 30, 2022 at 6:54 PM Ferdi Scholten <ferdi at sttc-nlp.nl> wrote:
> Try using this together with -copyts
>
> -start_at_zero
>
>     When used with copyts, shift input timestamps so they start at zero.

I do not see what is the use of using -copyts, if that resets the
timestamps anyway with -start_at_zero. I want to be able to seek using
the original timestamps.